BACKGROUND Glycosylation,a commonly occurring post-translational modification,is highly expressed in several tumors,specifically in those of the digestive system,and plays a role in various cellular pathophysiological...BACKGROUND Glycosylation,a commonly occurring post-translational modification,is highly expressed in several tumors,specifically in those of the digestive system,and plays a role in various cellular pathophysiological mechanisms.Although the importance and detection methods of glycosylation in digestive system tumors have garnered increasing attention in recent years,bibliometric analysis of this field remains scarce.The present study aims to identify the developmental trends and research hotspots of glycosylation in digestive system tumors.AIM To find and identify the developmental trends and research hotspots of glycosylation in digestive system tumors.METHODS We obtained relevant literature from the Web of Science Core Collection and employed VOSviewer 1.6.19 and CiteSpace(version 6.1.R6)to perform bibliometric analysis.RESULTS A total of 2042 documents spanning from 1978 to the present were analyzed,with the research process divided into three phases:the period of obscurity(1978-1990),continuous development period(1991-2006),and the rapid outbreak period(2007-2023).These documents were authored by researchers from 66 countries or regions,with the United States and China leading in terms of publication output.Reis Celso A had the highest number of publications,while Pinho SS was the most cited author.Co-occurrence analysis revealed the most popular keywords in this field are glycosylation,expression,cancer,colorectal cancer,and pancreatic cancer.Furthermore,the Journal of Proteome Research was the most prolific journal in terms of publications,while the Journal of Biological Chemistry had the most citations.CONCLUSION The bibliometric analysis shows current research focus is primarily on basic research in this field.However,future research should aim to utilize glycosylation as a target for treating tumor patients.展开更多
Background:There is scant evidence regarding the effects of exercise type and duration on quality of life(QoL)in digestive system cancer(DSC)survivors.We aim to investigate the optimal type and duration of exercise to...Background:There is scant evidence regarding the effects of exercise type and duration on quality of life(QoL)in digestive system cancer(DSC)survivors.We aim to investigate the optimal type and duration of exercise to improve QoL for DSC survivors through a systematic review and network meta-analysis.Methods:A systematic literature search of PubMed,Embase,and Web of Science was performed.Eligibility for study inclusion was limited to studies that were randomized controlled trials involving all kinds of exercise in adult patients with DSCs,and the comparator was in standard care or other types of exercise.The primary outcome was QoL,including general health,physical health,mental health,and role function.Secondary outcomes included cancer-related symptoms such as fatigue,insomnia,depression,anxiety,and duration of hospital stay.The network meta-analyses were performed using a random-effect model.Results:The analysis included 32 eligible articles and a total of 2558 participants.Our primary outcome indicated that short-term aerobic exercise significantly enhanced general health(standardized mean difference(SMD)=0.66,95%credible intervals(Crls):0.05 to 1.30),and also contributed to a better mental health(SMD=0.38,95%CrI:-0.05 to 0.81)and role function(SMD=0.48,95%CrI:-0.27 to 1.20).Although without significant changes,short-term resistance exercise tended to increase the physical health of patients with DSCs(SM=0.69,95%CrI:-0.07 to 1.50)and effective in alleviating fatigue(SMD=-0.77,95%CrI:-1.50 to 0.01).Short-term aerobic exercise was related to a lower score of insomnia(SMD=-1.20,95%CrI:-2.40 to 0.06),depression(SMD=-0.51,95%CrI:-1.50 to 0.45),and anxiety(SMD=-0.45,95%CrI:-1.30 to 0.34).All types of exercise related to a trend of declined hospital stays(-0.87 to-5.00 day).Long-term resistance exercise,however,was negatively associated with general health(SMD=-0.33,95%CrI:-1.70 to 1.00),physical health(SMD=-0.18,95%CrI:-1.30to 0.90),and role function(SMD=-1.20,95%CrI:-2.50 to 0.11).Conclusion:This study suggests that short-term aerobic exercise,with or without resistance exercise programs,enhances QoL(especially for general health)as well as relieves cancer-related symptoms for DSC survivors,while long-term resistance exercise may have negative effects,and thus should be adopted cautiously.These results provide important evidence for the management of DSCs.展开更多
Chronic inflammation,through a variety of mechanisms,plays a key role in the occurrence and development of digestive system malignant tumors(DSMTs).In this study,we feature and provide a comprehensive understanding of...Chronic inflammation,through a variety of mechanisms,plays a key role in the occurrence and development of digestive system malignant tumors(DSMTs).In this study,we feature and provide a comprehensive understanding of DSMT prevention strategies based on preventing or controlling chronic inflammation.The development and evaluation of cancer prevention strategies is a longstanding process.Cancer prevention,especially in the early stage of life,should be emphasized throughout the whole life course.Issues such as the time interval for colon cancer screening,the development of direct-acting antiviral drugs for liver cancer,and the Helicobacter pylori vaccine all need to be explored in long-term,large-scale experiments in the future.展开更多
Many digestive system malignant tumors are characterized by high incidence and mortality rate.Increasing evidence has revealed that the tumor microenvironment(TME)is involved in cancer initiation and tumor progression...Many digestive system malignant tumors are characterized by high incidence and mortality rate.Increasing evidence has revealed that the tumor microenvironment(TME)is involved in cancer initiation and tumor progression.Tumor-associated macrophages(TAMs)are a predominant constituent of the TME,and participate in the regulation of various biological behaviors and influence the prognosis of digestive system cancer.TAMs can be mainly classified into the antitumor M1 phenotype and protumor M2 phenotype.The latter especially are crucial drivers of tumor invasion,growth,angiogenesis,metastasis,immunosuppression,and resistance to therapy.TAMs are of importance in the occurrence,development,diagnosis,prognosis,and treatment of common digestive system malignant tumors.In this review,we summarize the role of TAMs in common digestive system malignant tumors,including esophageal,gastric,colorectal,pancreatic and liver cancers.How TAMs promote the development of tumors,and how they act as potential therapeutic targets and their clinical applications are also described.展开更多
Digestive system cancers are important causes of morbidity and mortality worldwide.Cancer patients are more likely to commit suicide.The objective of this scoping review is to provide a comprehensive and updated summa...Digestive system cancers are important causes of morbidity and mortality worldwide.Cancer patients are more likely to commit suicide.The objective of this scoping review is to provide a comprehensive and updated summary of the existing literature on suicide among patients with digestive system cancers to identify the incidence and risk factors relevant to suicide in these populations.The PRISMA-Scr(Preferred Reporting Items for Systematic reviews and Meta-Analyses extension protocol for scoping reviews)protocol was used.The review was based on relevant articles published prior to January 2022 in databases of Web of Science and PubMed.The authors identified 21 records that met the criteria for inclusion.Among the 21 articles,18(n=85.7%)reported suicide risk factors,21(n=100%)evaluated the incidence of suicide and 16(n=76.2%)involved the variation in suicide rates.Only one study comprehensively reported that the suicide rate for this population was 32.8 per 100,000 years and the standardized mortality ratio(SMR)was 1.91.Most suicides occurred in patients with pancreatic,esophageal,and gastric cancers.The factors associated with suicide in digestive system cancers included male gender,older age,the white race,single status,advanced stage of disease,and cancer metastasis.The most critical time for suicide was in the early post-diagnostic period.It is indispensable to identify suicide in these cancer patients,especially those with high-risk factors.In the future,more prospective research may be needed to provide more reliable support and care to prevent suicide.展开更多
Inositol polyphosphate-4-phosphatase type II(INPP4B)is a newly discovered PI(3,4,5)P3 phosphatase.Many studies have revealed that INPP4B is upregulated or downregulated in tumors of the digestive system,and the abnorm...Inositol polyphosphate-4-phosphatase type II(INPP4B)is a newly discovered PI(3,4,5)P3 phosphatase.Many studies have revealed that INPP4B is upregulated or downregulated in tumors of the digestive system,and the abnormal expression of INPP4B may be attributed to the occurrence,development,and prognosis of tumors of the digestive system.This paper reviews studies on the correlations between INPP4B and digestive system tumors and the roles of INPP4B in the development of different tumors to provide a theoretical basis for further research on its molecular mechanism and clinical application."INPP4B"and"tumor"were searched as key words in PubMed and in the CNKI series full text database retrieval system from January 2000 to August 2023.A total of 153 Englishlanguage studies and 30 Chinese-language studies were retrieved.The following enrollment criteria were applied:(1)Studies contained information on the biological structure and functions of INPP4B;(2)studies covered the influence of abnormal expression of INPP4B in digestive system tumors;and(3)studies covered the role of INPP4B in the diagnosis,treatment,and prognosis of digestive system tumors.After excluding the literature irrelevant to this study,61 papers were finally included in the analysis.INPP4B expression is low in gastric cancer,colon cancer,pancreatic cancer,and liver cancer but it has high expression in esophageal cancer,colon cancer,pancreatic cancer,and gallbladder cancer.INPP4B is involved in the occurrence and development of digestive system tumors through the regulation of gene expression and signal transduction.The abnormal expression of INPP4B plays an important role in the development of digestive system tumors.Studies on INPP4B provide new molecular insights for the diagnosis,treatment,and prognosis evaluation of digestive system tumors.展开更多
Sijunzi Decoction,as one of the classic Chinese traditional prescriptions,has been used clinically by major physicians since the Song Dynasty.This article reviewed and sorted out the literature on the effective chemis...Sijunzi Decoction,as one of the classic Chinese traditional prescriptions,has been used clinically by major physicians since the Song Dynasty.This article reviewed and sorted out the literature on the effective chemistry of Sijunzi Decoction and the mechanism of its prevention and treatment of digestive system diseases.At present,its effective chemical components are derived from the saponins and flavonoids in ginseng and licorice,and are effective for gastrointestinal mucosal injury diseases and malignant digestive system.Digestive system diseases such as tumors,functional gastrointestinal diseases,non-alcoholic fatty liver,acute liver injury,and liver failure show a multi-path,multi-target effect mechanism.This article reviews the effective chemical components and research of Sijunzi Decoction and the related mechanisms of prevention and treatment of digestive system diseases,and provides valuable clues for the follow-up research of Sijunzi Decoction.展开更多
With the “boom” of AI, researchers have made significant progress in assisting clinical disease diagnosis, prediction, and treatment. This article provides an overview of models built using both traditional machine ...With the “boom” of AI, researchers have made significant progress in assisting clinical disease diagnosis, prediction, and treatment. This article provides an overview of models built using both traditional machine learning methods and deep learning methods, as well as research progress on robotics in digestive system diseases, aiming to provide references for further studies. An application has been developed by domestic and foreign scholars that allows users to upload images of stool samples, which are then analyzed using big data to provide a score for bowel preparation, thereby improving the quality of bowel preparation. In some gastrointestinal diseases, such as Hp infection, Barrett’s esophagus and esophageal cancer, chronic atrophic gastritis and gastric cancer, IBD, etc., artificial intelligence possesses diagnostic capabilities comparable to those of professional endoscopists, and some applications can achieve real-time diagnosis. In the field of liver, gallbladder, and pancreatic diseases, artificial intelligence can assist in preoperative diagnosis using imaging or pathology, and robotic remote operations can be performed during surgery, predicting postoperative risk levels, and more. Different scholars have compared and analyzed various algorithm networks for different diseases to find the best-performing models. On this basis, methods such as the MCA attention mechanism, feature selection, gradient descent, and ensemble models can be introduced to further improve the diagnostic performance of the models. In the future, AI can not only help patients self-manage single or multiple diseases, monitor and manage their own diseases in a standardized and reasonable manner, but also predict and treat digestive system diseases at the genetic level.展开更多
The highest morbidity and mortality in the world are attributed to digestive system tumors,such as stomach cancer,liver cancer,and pancreatic cancer.Exploring potential biomarkers is a crucial direction of tumor resea...The highest morbidity and mortality in the world are attributed to digestive system tumors,such as stomach cancer,liver cancer,and pancreatic cancer.Exploring potential biomarkers is a crucial direction of tumor research.We use bioinformatics methods to explore potential biomarkers of the digestive system.Mining and analyzing data from Gene Expression Profiling Interactive Analysis(GEPIA),Kaplan-Meier,cBioPortal,and Metabolic gEne RApid Visualizer(MERAV)to explore the correlation between IGF2BP(insulin-like growth factor-2 mRNA-binding protein)family expression and immune infiltration in digestive system tumors,and further probe the prognostic value of IGF2BP family in digestive system tumors.Esophageal cancer tissues showed a significantly higher expression of IGF2BP2 than normal tissues,while IGF2BP3 was notably more expressed in esophageal cancer,pancreatic cancer,and stomach cancer.In the prognosis evaluation,the IGF2BP1 gene in patients with liver cancer and the IGF2BP2 and IGF2BP3 genes in patients with stomach cancer and liver cancer of the low gene expression level groups were better.Multivariate COX regression analysis further suggested that tumor stage,CD8 positive T cells,macrophages,dendritic cell infiltration,and IGF2BP3 expression were independent risk factors affecting the prognosis of patients with stem cell liver cancer.The IGF2BP family may be a potential marker for immunotherapy and the prognosis of digestive system tumors.展开更多
Starch digestion rate and location in the gastrointestinal tract(GIT)are critical for human health.This review aims to present a comprehensive summary on our current understanding of physiological,biochemical,anatomic...Starch digestion rate and location in the gastrointestinal tract(GIT)are critical for human health.This review aims to present a comprehensive summary on our current understanding of physiological,biochemical,anatomical and geometrical factors of human digestive system that are related to in vivo starch digestibility.It is shown that all digestive compartments including mouth,stomach,small intestine,and large intestine play critical roles in regulating the overall starch digestion process.A proper investigation of starch digestion pattern should thus be based on the consideration of all these compartments.Main biological factors are summarized as oral mastication and salivation,gastric emptying and motility,small intestinal enzymes and motility,large intestinal resistant starch(RS)-microbiota interactions and gut-brain feedback control,as well as glucose adsorption and hormonal feedback control.However,connections among these biological factors in determining starch digestive behaviors remain elusive.This is due to the inherent complexity of human GIT anatomy,motility and biochemical conditions,as well as ethical,financial and technical issues in conducting clinical studies.Much technological and scientific efforts from both clinical studies and in vitro simulation models are required for a better understanding of in vivo starch digestion behaviors.展开更多
Coronavirus disease 2019(COVID-19)is caused by infection of the coronavirus severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)with typical respiratory symptoms.SARS-CoV-2 invades not only the respiratory syst...Coronavirus disease 2019(COVID-19)is caused by infection of the coronavirus severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)with typical respiratory symptoms.SARS-CoV-2 invades not only the respiratory system,but also other organs expressing the cell surface receptor angiotensin converting enzyme 2.In particular,the digestive system is a susceptible target of SARS-CoV-2.Gastrointestinal symptoms of COVID-19 include anorexia,nausea,vomiting,diarrhea,abdominal pain,and liver damage.Patients with digestive damage have a greater chance of progressing to severe or critical illness,a poorer prognosis,and a higher risk of death.This paper aims to summarize the digestive system symptoms of COVID-19 and discuss fecal-oral contagion of SARS-CoV-2.It also describes the characteristics of inflammatory bowel disease patients with SARSCoV-2 infection and discusses precautions for preventing SARS-CoV-2 infection during gastrointestinal endoscopy procedures.Improved attention to digestive system abnormalities and gastrointestinal symptoms of COVID-19 patients may aid health care providers in the process of clinical diagnosis,treatment,and epidemic prevention and control.展开更多
Cancers of the digestive system(DS),including esophageal,gastric,colorectal,liver,and pancreatic can-cers,have a high incidence and mortality worldwide.Current cancer models cannot faithfully recapitu-late the critica...Cancers of the digestive system(DS),including esophageal,gastric,colorectal,liver,and pancreatic can-cers,have a high incidence and mortality worldwide.Current cancer models cannot faithfully recapitu-late the critical features of the original tumor,resulting in the failure of translation from basic research into clinical practice.More advanced cancer models are in urgent need of pathogenesis exploration and anticancer medicine development.Organoids are in vitro cultured three dimensional(3D)self-organizing organotypic structures derived from tissues and pluripotent stem cells,which faithfully mimic the histological features and preserve the genetic heterogeneity of the original tissues.Both normal and malignant organoids can now be efficiently established from the DS tissues of patients.In this review,we summarize the general methods to generate human DS organoids and their applications as a novel model in basic cancer research,preclinical medical practice,and precision medicine.展开更多
Chemokine(C-X-C motif)receptor 7(CXCR7),recently termed ACKR3,belongs to the G protein-coupled cell surface receptor family,binds to stromal cellderived factor-1[SDF-1,or chemokine(C-X-C motif)ligand 12]or chemokine(C...Chemokine(C-X-C motif)receptor 7(CXCR7),recently termed ACKR3,belongs to the G protein-coupled cell surface receptor family,binds to stromal cellderived factor-1[SDF-1,or chemokine(C-X-C motif)ligand 12]or chemokine(CX-C motif)ligand 11,and is the most common chemokine receptor expressed in a variety of cancer cells.SDF-1 binds to its receptor chemokine(C-X-C motif)receptor 4(CXCR4)and regulates cell proliferation,survival,angiogenesis and migration.In recent years,another new receptor for SDF-1,CXCR7,has been discovered,and CXCR7 has also been found to be expressed in a variety of tumor cells and tumor-related vascular endothelial cells.Many studies have shown that CXCR7 can promote the growth and metastasis of a variety of malignant tumor cells.Unlike CXCR4,CXCR7 exhibits a slight modification in the DRYLAIV motif and does not induce intracellular Ca^2+release following ligand binding,which is essential for recruiting and activating G proteins.CXCR7 is generally thought to work in three ways:(1)Recruitingβ-arrestin 2;(2)Heterodimerizing with CXCR4;and(3)Acting as a“scavenger”of SDF-1,thus lowering the level of SDF-1 to weaken the activity of CXCR4.In the present review,the expression and role of CXCR7,as well as its prognosis in cancers of the digestive system,were investigated.展开更多
Objective:Based on the data mining method,explore the medication rules of Chinese patent medicines for the treatment of digestive system tumors.Method:Based on the"Chinese Traditional Medicine Prescription Databa...Objective:Based on the data mining method,explore the medication rules of Chinese patent medicines for the treatment of digestive system tumors.Method:Based on the"Chinese Traditional Medicine Prescription Database"in https://db.yaozh.com/,collect Chinese patent medicines for the treatment of digestive system tumors,establish an Excel table,and use the ancient and modern medical case cloud platform(V2.2.1)to perform frequency statistics,association rules,and drugs on the data Clustering and complex network analysis.Results:A total of 36 Chinese patent medicines for the treatment of digestive system tumors were screened.The medicinal properties were mainly warm and cold,the taste was bitter and sweet,and the meridians were mainly liver and spleen meridians.High frequency Chinese medicine include Astragalus,Scutellaria-barbata,Ginseng,Curcuma,Triangle,Atractylodes,Hedyotis diffusa,etc.Correlation analysis obtained 17 drug combinations,High-frequency drug pairs include Scutellaria-barbata-Astragalus,Ginseng-Astragalus,Curcuma-Astragalus,Scutellaria-barbata-Curcuma,etc.Cluster analysis found 3 types of drugs.The core drug network is composed of 27 drugs,and the core compatibility network consists of 3 groups of drugs.Conclusion:The Chinese patent compound medicine for the treatment of digestive system tumors has the characteristics of combining cold and warming,replenishing and reducing treatment,and treating the liver and spleen at the same time.The medicine is mainly used to replenish qi and invigorate the spleen,promote blood circulation and remove blood stasis,and clear away heat and detoxification.Replenish qi,nourish yin,invigorate blood,and detoxify are mainly compatible with each other,reflecting the pathogenesis characteristics of"deficiency,stasis,and toxin"in digestive system tumors.Data mining can provide references for the prescription and compatibility of Chinese patent medicines.展开更多
The corona virus disease 2019(COVID-19)is an acute respiratory infection caused by the binding of SEVERE acute respiratory syndrome coronavirus 2(SARS-COV-2)and the angiotensin-converting enzyme 2(ACE2)receptor to the...The corona virus disease 2019(COVID-19)is an acute respiratory infection caused by the binding of SEVERE acute respiratory syndrome coronavirus 2(SARS-COV-2)and the angiotensin-converting enzyme 2(ACE2)receptor to the host target organ.New research suggests that COVID-19 may be a systemic infectious disease and a systemic inflammatory disease.Symptoms and signs of the digestive system are often found in patients with coVID-19 following acute infection.At present,despite the existence of some coronavirus-related digestive diseases(such as gastrointestinal diseases,liver injury,pancreatic injury,etc.),the pathogenesis of COVID-19 with digestive symptoms in existing studies is still unclear,and relevant guidelines and expert consensus are not enough for clinical diagnosis and treatment.Therefore,it is extremely important to understand the clinical manifestations,pathogenesis and prognosis of coVID-19 patients with digestive system.展开更多
Objective:To explore Yan Zhenghua’s drug selection rule for treating digestive system diseases using data mining.Methods:The 609 medical records of digestive system diseases treated by Yan Zhenghua were collected and...Objective:To explore Yan Zhenghua’s drug selection rule for treating digestive system diseases using data mining.Methods:The 609 medical records of digestive system diseases treated by Yan Zhenghua were collected and the herbs in these recipes were examined using a data mining technique.The correlativity between herb pairs and association rules was studied using an Apriori algorithm and the correlativity among multi-herbs was studied using a complex system entropy cluster technique.Results:Yan Zhenghua’s treatment of digestive system diseases featured 15 herbs prescribed at least 159 times each,22 herb pairs prescribed at least 155 times each,and eight frequently used herb core combinations.A confidence greater than 0.91 and a support level greater than 20%were achieved using the modified mutual information method.Conclusion:The data mining results conformed to findings from clinical practice.The data mining method is a valuable technique with which to study the experience of famous,elderly traditional Chinese medicine physicians.展开更多
Background: MicroRNAs (miRNAs) negatively regulate the gene expression and act as tumor suppressors or oncogenes in carcinogenesis. The association between single nucleotide polymorphism (SNP) in miR-196a2 rs11614913 ...Background: MicroRNAs (miRNAs) negatively regulate the gene expression and act as tumor suppressors or oncogenes in carcinogenesis. The association between single nucleotide polymorphism (SNP) in miR-196a2 rs11614913 and the susceptibility of digestive system cancers was inconsistent in previous studies. Methods: A standardized search of PubMed, Embase, and Cochrane library databases for publications on miR-196a2 rs11614913 polymorphism and digestive system cancer risk was performed. Then the genotype data were analyzed in a meta-analysis. Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to evaluate the association. Test of heterogeneity, sensitivity analysis and assessment of publication bias were conducted in the present meta-analysis by STATA software 12.0. Results: An updated meta-analysis based on 34 independent case-control studies consisting of 13,013 cases and 16,046 controls was performed to address this association. There was a remarkable association between miR-196a2 rs11614913 polymorphism and overall digestive system cancer risk, especially in Asian populations. Moreover, subgroup analysis revealed that variant C allele increased risk of colorectal carcinoma, gastric cancer and hepatocellular carcinoma (HCC), compared with wild T allele. Conclusions: There was a remarkable association between miR-196a2 rs11614913 polymorphism and overall digestive system cancer risk, especially in Asian populations.展开更多
E2F family of transcription factors regulates various cellular functions related to cell cycle and apoptosis. Its individual members have traditionally been classified into activators and repressors, based on in vitro...E2F family of transcription factors regulates various cellular functions related to cell cycle and apoptosis. Its individual members have traditionally been classified into activators and repressors, based on in vitro studies. However their contribution in human cancer is more complicated and difficult to predict. We review current knowledge on the expression of E2Fs in digestive system malignancies and its clinical implications for patient prognosis and treatment. E2F1, the most extensively studied member and the only one with prognostic value, exhibits a tumor-suppressing activity in esophageal, gastric and colorectal adenocarcinoma, and in hepatocellular carcinoma (HCC), whereas in pancreatic ductal adenocarcinoma and esophageal squamous cell carcinoma may function as a tumorpromoter. In the latter malignancies, E2F1 immunohistochemical expression has been correlated with higher tumor grade and worse patient survival, whereas in esophageal, gastric and colorectal adenocarcinomas is a marker of increased patient survival. E2F2 has only been studied in colorectal cancer, where its role is not considered significant. E2F4's role in colorectal, gastric and hepatic carcinogenesis is tumor-promoting. E2F8 is strongly upregulated in human HCC, thus possibly contributing to hepatocarcinogenesis. Adenoviral transfer of E2F as gene therapy to sensitize pancreatic cancer cells for chemotherapeutic agents has been used in experimental studies. Other therapeutic strategies are yet to be developed, but it appears that targeted approaches using E2F-agonists or antagonists should take into account the tissue-dependent function of each E2F member. Further understanding of E2Fs' contribution in cellular functions in vivo would help clarify their role in carcinogenesis.展开更多
There are several malignancies of the digestive system(including gastric, pancreatic and colorectal cancers, and hepatocellular carcinoma), which are the most common types of cancer and a major cause of death worldwid...There are several malignancies of the digestive system(including gastric, pancreatic and colorectal cancers, and hepatocellular carcinoma), which are the most common types of cancer and a major cause of death worldwide. MicroRNA(miR)-7 is abundant in the pancreas, playing an important role in pancreatic development and endocrine function. Expression of miR-7 is downregulated in digestive system malignancies compared with normal tissue. Although there are contrasting results for miR-7 expression, almost all research reveals that miR-7 is a tumor suppressor, by targeting various genes in specific pathways. Moreover, miR-7 can target different genes simultaneously in different malignancies of the digestive system. By acting on many cytokines, miR-7 is also involved in many gastrointestinal inflammatory diseases as a significant carcinogenic factor. Consequently, miR-7 might be a biomarker or therapeutic target gene in digestive system malignancies.展开更多
The Na^+/Ca^(2+) exchanger(NCX) protein family is a part of the cation/Ca^(2+) exchanger superfamily and participates in the regulation of cellular Ca^(2+) homeostasis. NCX1, the most important subtype in the NCX fami...The Na^+/Ca^(2+) exchanger(NCX) protein family is a part of the cation/Ca^(2+) exchanger superfamily and participates in the regulation of cellular Ca^(2+) homeostasis. NCX1, the most important subtype in the NCX family, is expressed widely in various organs and tissues in mammals and plays an especially important role in the physiological and pathological processes of nerves and the cardiovascular system. In the past few years, the function of NCX1 in the digestive system has received increasing attention; NCX1 not only participates in the healing process of gastric ulcer and gastric mucosal injury but also mediates the development of digestive cancer, acute pancreatitis, and intestinal absorption.This review aims to explore the roles of NCX1 in digestive system physiology and pathophysiology in order to guide clinical treatments.展开更多
基金the National Natural Science Foundation of China,No.82072662Shanghai Municipal Education Commission-Gaofeng Clinical Medicine Grant Support,No.2019142+1 种基金Shanghai Three-year Action Plan to Promote Clinical Skills and Clinical Innovation in Municipal Hospitals,No.SHDC2020CR4022the 2021 Shanghai“Rising Stars of Medical Talent”Youth Development Program:Outstanding Youth Medical Talents.
文摘BACKGROUND Glycosylation,a commonly occurring post-translational modification,is highly expressed in several tumors,specifically in those of the digestive system,and plays a role in various cellular pathophysiological mechanisms.Although the importance and detection methods of glycosylation in digestive system tumors have garnered increasing attention in recent years,bibliometric analysis of this field remains scarce.The present study aims to identify the developmental trends and research hotspots of glycosylation in digestive system tumors.AIM To find and identify the developmental trends and research hotspots of glycosylation in digestive system tumors.METHODS We obtained relevant literature from the Web of Science Core Collection and employed VOSviewer 1.6.19 and CiteSpace(version 6.1.R6)to perform bibliometric analysis.RESULTS A total of 2042 documents spanning from 1978 to the present were analyzed,with the research process divided into three phases:the period of obscurity(1978-1990),continuous development period(1991-2006),and the rapid outbreak period(2007-2023).These documents were authored by researchers from 66 countries or regions,with the United States and China leading in terms of publication output.Reis Celso A had the highest number of publications,while Pinho SS was the most cited author.Co-occurrence analysis revealed the most popular keywords in this field are glycosylation,expression,cancer,colorectal cancer,and pancreatic cancer.Furthermore,the Journal of Proteome Research was the most prolific journal in terms of publications,while the Journal of Biological Chemistry had the most citations.CONCLUSION The bibliometric analysis shows current research focus is primarily on basic research in this field.However,future research should aim to utilize glycosylation as a target for treating tumor patients.
基金supported by the Medical-Engineering Cross Project between University of Shanghai for Science&Technology and Naval Medical University(No.2020-RZ05)Wu Mengchao talent plan fund(to RLG)。
文摘Background:There is scant evidence regarding the effects of exercise type and duration on quality of life(QoL)in digestive system cancer(DSC)survivors.We aim to investigate the optimal type and duration of exercise to improve QoL for DSC survivors through a systematic review and network meta-analysis.Methods:A systematic literature search of PubMed,Embase,and Web of Science was performed.Eligibility for study inclusion was limited to studies that were randomized controlled trials involving all kinds of exercise in adult patients with DSCs,and the comparator was in standard care or other types of exercise.The primary outcome was QoL,including general health,physical health,mental health,and role function.Secondary outcomes included cancer-related symptoms such as fatigue,insomnia,depression,anxiety,and duration of hospital stay.The network meta-analyses were performed using a random-effect model.Results:The analysis included 32 eligible articles and a total of 2558 participants.Our primary outcome indicated that short-term aerobic exercise significantly enhanced general health(standardized mean difference(SMD)=0.66,95%credible intervals(Crls):0.05 to 1.30),and also contributed to a better mental health(SMD=0.38,95%CrI:-0.05 to 0.81)and role function(SMD=0.48,95%CrI:-0.27 to 1.20).Although without significant changes,short-term resistance exercise tended to increase the physical health of patients with DSCs(SM=0.69,95%CrI:-0.07 to 1.50)and effective in alleviating fatigue(SMD=-0.77,95%CrI:-1.50 to 0.01).Short-term aerobic exercise was related to a lower score of insomnia(SMD=-1.20,95%CrI:-2.40 to 0.06),depression(SMD=-0.51,95%CrI:-1.50 to 0.45),and anxiety(SMD=-0.45,95%CrI:-1.30 to 0.34).All types of exercise related to a trend of declined hospital stays(-0.87 to-5.00 day).Long-term resistance exercise,however,was negatively associated with general health(SMD=-0.33,95%CrI:-1.70 to 1.00),physical health(SMD=-0.18,95%CrI:-1.30to 0.90),and role function(SMD=-1.20,95%CrI:-2.50 to 0.11).Conclusion:This study suggests that short-term aerobic exercise,with or without resistance exercise programs,enhances QoL(especially for general health)as well as relieves cancer-related symptoms for DSC survivors,while long-term resistance exercise may have negative effects,and thus should be adopted cautiously.These results provide important evidence for the management of DSCs.
基金Supported by the Open Project Fund of Henan International Joint Laboratory of Prevention and Treatment of Pediatric Diseases,No.SS202204.
文摘Chronic inflammation,through a variety of mechanisms,plays a key role in the occurrence and development of digestive system malignant tumors(DSMTs).In this study,we feature and provide a comprehensive understanding of DSMT prevention strategies based on preventing or controlling chronic inflammation.The development and evaluation of cancer prevention strategies is a longstanding process.Cancer prevention,especially in the early stage of life,should be emphasized throughout the whole life course.Issues such as the time interval for colon cancer screening,the development of direct-acting antiviral drugs for liver cancer,and the Helicobacter pylori vaccine all need to be explored in long-term,large-scale experiments in the future.
基金Supported by National Natural Science Foundation of China,No.82272396Suzhou Medical and Health Science and Technology Innovation Project,No.SKY2022057The Youth Medical Talent of Jiangsu Province,No.QNRC2016475.
文摘Many digestive system malignant tumors are characterized by high incidence and mortality rate.Increasing evidence has revealed that the tumor microenvironment(TME)is involved in cancer initiation and tumor progression.Tumor-associated macrophages(TAMs)are a predominant constituent of the TME,and participate in the regulation of various biological behaviors and influence the prognosis of digestive system cancer.TAMs can be mainly classified into the antitumor M1 phenotype and protumor M2 phenotype.The latter especially are crucial drivers of tumor invasion,growth,angiogenesis,metastasis,immunosuppression,and resistance to therapy.TAMs are of importance in the occurrence,development,diagnosis,prognosis,and treatment of common digestive system malignant tumors.In this review,we summarize the role of TAMs in common digestive system malignant tumors,including esophageal,gastric,colorectal,pancreatic and liver cancers.How TAMs promote the development of tumors,and how they act as potential therapeutic targets and their clinical applications are also described.
文摘Digestive system cancers are important causes of morbidity and mortality worldwide.Cancer patients are more likely to commit suicide.The objective of this scoping review is to provide a comprehensive and updated summary of the existing literature on suicide among patients with digestive system cancers to identify the incidence and risk factors relevant to suicide in these populations.The PRISMA-Scr(Preferred Reporting Items for Systematic reviews and Meta-Analyses extension protocol for scoping reviews)protocol was used.The review was based on relevant articles published prior to January 2022 in databases of Web of Science and PubMed.The authors identified 21 records that met the criteria for inclusion.Among the 21 articles,18(n=85.7%)reported suicide risk factors,21(n=100%)evaluated the incidence of suicide and 16(n=76.2%)involved the variation in suicide rates.Only one study comprehensively reported that the suicide rate for this population was 32.8 per 100,000 years and the standardized mortality ratio(SMR)was 1.91.Most suicides occurred in patients with pancreatic,esophageal,and gastric cancers.The factors associated with suicide in digestive system cancers included male gender,older age,the white race,single status,advanced stage of disease,and cancer metastasis.The most critical time for suicide was in the early post-diagnostic period.It is indispensable to identify suicide in these cancer patients,especially those with high-risk factors.In the future,more prospective research may be needed to provide more reliable support and care to prevent suicide.
文摘Inositol polyphosphate-4-phosphatase type II(INPP4B)is a newly discovered PI(3,4,5)P3 phosphatase.Many studies have revealed that INPP4B is upregulated or downregulated in tumors of the digestive system,and the abnormal expression of INPP4B may be attributed to the occurrence,development,and prognosis of tumors of the digestive system.This paper reviews studies on the correlations between INPP4B and digestive system tumors and the roles of INPP4B in the development of different tumors to provide a theoretical basis for further research on its molecular mechanism and clinical application."INPP4B"and"tumor"were searched as key words in PubMed and in the CNKI series full text database retrieval system from January 2000 to August 2023.A total of 153 Englishlanguage studies and 30 Chinese-language studies were retrieved.The following enrollment criteria were applied:(1)Studies contained information on the biological structure and functions of INPP4B;(2)studies covered the influence of abnormal expression of INPP4B in digestive system tumors;and(3)studies covered the role of INPP4B in the diagnosis,treatment,and prognosis of digestive system tumors.After excluding the literature irrelevant to this study,61 papers were finally included in the analysis.INPP4B expression is low in gastric cancer,colon cancer,pancreatic cancer,and liver cancer but it has high expression in esophageal cancer,colon cancer,pancreatic cancer,and gallbladder cancer.INPP4B is involved in the occurrence and development of digestive system tumors through the regulation of gene expression and signal transduction.The abnormal expression of INPP4B plays an important role in the development of digestive system tumors.Studies on INPP4B provide new molecular insights for the diagnosis,treatment,and prognosis evaluation of digestive system tumors.
文摘Sijunzi Decoction,as one of the classic Chinese traditional prescriptions,has been used clinically by major physicians since the Song Dynasty.This article reviewed and sorted out the literature on the effective chemistry of Sijunzi Decoction and the mechanism of its prevention and treatment of digestive system diseases.At present,its effective chemical components are derived from the saponins and flavonoids in ginseng and licorice,and are effective for gastrointestinal mucosal injury diseases and malignant digestive system.Digestive system diseases such as tumors,functional gastrointestinal diseases,non-alcoholic fatty liver,acute liver injury,and liver failure show a multi-path,multi-target effect mechanism.This article reviews the effective chemical components and research of Sijunzi Decoction and the related mechanisms of prevention and treatment of digestive system diseases,and provides valuable clues for the follow-up research of Sijunzi Decoction.
文摘With the “boom” of AI, researchers have made significant progress in assisting clinical disease diagnosis, prediction, and treatment. This article provides an overview of models built using both traditional machine learning methods and deep learning methods, as well as research progress on robotics in digestive system diseases, aiming to provide references for further studies. An application has been developed by domestic and foreign scholars that allows users to upload images of stool samples, which are then analyzed using big data to provide a score for bowel preparation, thereby improving the quality of bowel preparation. In some gastrointestinal diseases, such as Hp infection, Barrett’s esophagus and esophageal cancer, chronic atrophic gastritis and gastric cancer, IBD, etc., artificial intelligence possesses diagnostic capabilities comparable to those of professional endoscopists, and some applications can achieve real-time diagnosis. In the field of liver, gallbladder, and pancreatic diseases, artificial intelligence can assist in preoperative diagnosis using imaging or pathology, and robotic remote operations can be performed during surgery, predicting postoperative risk levels, and more. Different scholars have compared and analyzed various algorithm networks for different diseases to find the best-performing models. On this basis, methods such as the MCA attention mechanism, feature selection, gradient descent, and ensemble models can be introduced to further improve the diagnostic performance of the models. In the future, AI can not only help patients self-manage single or multiple diseases, monitor and manage their own diseases in a standardized and reasonable manner, but also predict and treat digestive system diseases at the genetic level.
基金from any funding agency in the public,commercial,or not-for-profit sectors.
文摘The highest morbidity and mortality in the world are attributed to digestive system tumors,such as stomach cancer,liver cancer,and pancreatic cancer.Exploring potential biomarkers is a crucial direction of tumor research.We use bioinformatics methods to explore potential biomarkers of the digestive system.Mining and analyzing data from Gene Expression Profiling Interactive Analysis(GEPIA),Kaplan-Meier,cBioPortal,and Metabolic gEne RApid Visualizer(MERAV)to explore the correlation between IGF2BP(insulin-like growth factor-2 mRNA-binding protein)family expression and immune infiltration in digestive system tumors,and further probe the prognostic value of IGF2BP family in digestive system tumors.Esophageal cancer tissues showed a significantly higher expression of IGF2BP2 than normal tissues,while IGF2BP3 was notably more expressed in esophageal cancer,pancreatic cancer,and stomach cancer.In the prognosis evaluation,the IGF2BP1 gene in patients with liver cancer and the IGF2BP2 and IGF2BP3 genes in patients with stomach cancer and liver cancer of the low gene expression level groups were better.Multivariate COX regression analysis further suggested that tumor stage,CD8 positive T cells,macrophages,dendritic cell infiltration,and IGF2BP3 expression were independent risk factors affecting the prognosis of patients with stem cell liver cancer.The IGF2BP family may be a potential marker for immunotherapy and the prognosis of digestive system tumors.
基金financial support from National Natural Science Foundation of China(32001646)Natural Science Foundation of Jiangsu Province(BK20190906)+2 种基金Jiangsu Yangzhou Key Research and Development Program(SSF2018000008)Jiangsu Provincial Entrepreneurial and Innovation Phd ProgramYangzhou Lvyangjinfeng Talent Program。
文摘Starch digestion rate and location in the gastrointestinal tract(GIT)are critical for human health.This review aims to present a comprehensive summary on our current understanding of physiological,biochemical,anatomical and geometrical factors of human digestive system that are related to in vivo starch digestibility.It is shown that all digestive compartments including mouth,stomach,small intestine,and large intestine play critical roles in regulating the overall starch digestion process.A proper investigation of starch digestion pattern should thus be based on the consideration of all these compartments.Main biological factors are summarized as oral mastication and salivation,gastric emptying and motility,small intestinal enzymes and motility,large intestinal resistant starch(RS)-microbiota interactions and gut-brain feedback control,as well as glucose adsorption and hormonal feedback control.However,connections among these biological factors in determining starch digestive behaviors remain elusive.This is due to the inherent complexity of human GIT anatomy,motility and biochemical conditions,as well as ethical,financial and technical issues in conducting clinical studies.Much technological and scientific efforts from both clinical studies and in vitro simulation models are required for a better understanding of in vivo starch digestion behaviors.
文摘Coronavirus disease 2019(COVID-19)is caused by infection of the coronavirus severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)with typical respiratory symptoms.SARS-CoV-2 invades not only the respiratory system,but also other organs expressing the cell surface receptor angiotensin converting enzyme 2.In particular,the digestive system is a susceptible target of SARS-CoV-2.Gastrointestinal symptoms of COVID-19 include anorexia,nausea,vomiting,diarrhea,abdominal pain,and liver damage.Patients with digestive damage have a greater chance of progressing to severe or critical illness,a poorer prognosis,and a higher risk of death.This paper aims to summarize the digestive system symptoms of COVID-19 and discuss fecal-oral contagion of SARS-CoV-2.It also describes the characteristics of inflammatory bowel disease patients with SARSCoV-2 infection and discusses precautions for preventing SARS-CoV-2 infection during gastrointestinal endoscopy procedures.Improved attention to digestive system abnormalities and gastrointestinal symptoms of COVID-19 patients may aid health care providers in the process of clinical diagnosis,treatment,and epidemic prevention and control.
基金supported by the National Natural Science Foundation of China (81902904, 82073411, 81830054, and 81988101)the China Postdoctoral Science Foundation (2019M661373)
文摘Cancers of the digestive system(DS),including esophageal,gastric,colorectal,liver,and pancreatic can-cers,have a high incidence and mortality worldwide.Current cancer models cannot faithfully recapitu-late the critical features of the original tumor,resulting in the failure of translation from basic research into clinical practice.More advanced cancer models are in urgent need of pathogenesis exploration and anticancer medicine development.Organoids are in vitro cultured three dimensional(3D)self-organizing organotypic structures derived from tissues and pluripotent stem cells,which faithfully mimic the histological features and preserve the genetic heterogeneity of the original tissues.Both normal and malignant organoids can now be efficiently established from the DS tissues of patients.In this review,we summarize the general methods to generate human DS organoids and their applications as a novel model in basic cancer research,preclinical medical practice,and precision medicine.
基金Supported by Key Projects of Tianjin Natural Science Foundation,No.19JCZDJC36100General Project of Natural Science Fund of Tianjin Education Commission,No.2018KJ047+1 种基金Subject in the Third Affiliated Central Hospital of Nankai University,No.2017YNY3Tianjin Key Special Projects,No.15KG115。
文摘Chemokine(C-X-C motif)receptor 7(CXCR7),recently termed ACKR3,belongs to the G protein-coupled cell surface receptor family,binds to stromal cellderived factor-1[SDF-1,or chemokine(C-X-C motif)ligand 12]or chemokine(CX-C motif)ligand 11,and is the most common chemokine receptor expressed in a variety of cancer cells.SDF-1 binds to its receptor chemokine(C-X-C motif)receptor 4(CXCR4)and regulates cell proliferation,survival,angiogenesis and migration.In recent years,another new receptor for SDF-1,CXCR7,has been discovered,and CXCR7 has also been found to be expressed in a variety of tumor cells and tumor-related vascular endothelial cells.Many studies have shown that CXCR7 can promote the growth and metastasis of a variety of malignant tumor cells.Unlike CXCR4,CXCR7 exhibits a slight modification in the DRYLAIV motif and does not induce intracellular Ca^2+release following ligand binding,which is essential for recruiting and activating G proteins.CXCR7 is generally thought to work in three ways:(1)Recruitingβ-arrestin 2;(2)Heterodimerizing with CXCR4;and(3)Acting as a“scavenger”of SDF-1,thus lowering the level of SDF-1 to weaken the activity of CXCR4.In the present review,the expression and role of CXCR7,as well as its prognosis in cancers of the digestive system,were investigated.
基金Beijing Municipal Administration of Traditional Chinese Medicine Project(No.2019-ZX-005)。
文摘Objective:Based on the data mining method,explore the medication rules of Chinese patent medicines for the treatment of digestive system tumors.Method:Based on the"Chinese Traditional Medicine Prescription Database"in https://db.yaozh.com/,collect Chinese patent medicines for the treatment of digestive system tumors,establish an Excel table,and use the ancient and modern medical case cloud platform(V2.2.1)to perform frequency statistics,association rules,and drugs on the data Clustering and complex network analysis.Results:A total of 36 Chinese patent medicines for the treatment of digestive system tumors were screened.The medicinal properties were mainly warm and cold,the taste was bitter and sweet,and the meridians were mainly liver and spleen meridians.High frequency Chinese medicine include Astragalus,Scutellaria-barbata,Ginseng,Curcuma,Triangle,Atractylodes,Hedyotis diffusa,etc.Correlation analysis obtained 17 drug combinations,High-frequency drug pairs include Scutellaria-barbata-Astragalus,Ginseng-Astragalus,Curcuma-Astragalus,Scutellaria-barbata-Curcuma,etc.Cluster analysis found 3 types of drugs.The core drug network is composed of 27 drugs,and the core compatibility network consists of 3 groups of drugs.Conclusion:The Chinese patent compound medicine for the treatment of digestive system tumors has the characteristics of combining cold and warming,replenishing and reducing treatment,and treating the liver and spleen at the same time.The medicine is mainly used to replenish qi and invigorate the spleen,promote blood circulation and remove blood stasis,and clear away heat and detoxification.Replenish qi,nourish yin,invigorate blood,and detoxify are mainly compatible with each other,reflecting the pathogenesis characteristics of"deficiency,stasis,and toxin"in digestive system tumors.Data mining can provide references for the prescription and compatibility of Chinese patent medicines.
基金The 940th Hospital Intra-Hospital Fund Project(No.20yjky020)the General Project of Huoshenshan Hospital Scientific Research Fund(No.HSS-217)the Gansu Provincial Department of Science and Technology Social Development Department Clinical Medical Research Center Project(No.21JR7RA017)。
文摘The corona virus disease 2019(COVID-19)is an acute respiratory infection caused by the binding of SEVERE acute respiratory syndrome coronavirus 2(SARS-COV-2)and the angiotensin-converting enzyme 2(ACE2)receptor to the host target organ.New research suggests that COVID-19 may be a systemic infectious disease and a systemic inflammatory disease.Symptoms and signs of the digestive system are often found in patients with coVID-19 following acute infection.At present,despite the existence of some coronavirus-related digestive diseases(such as gastrointestinal diseases,liver injury,pancreatic injury,etc.),the pathogenesis of COVID-19 with digestive symptoms in existing studies is still unclear,and relevant guidelines and expert consensus are not enough for clinical diagnosis and treatment.Therefore,it is extremely important to understand the clinical manifestations,pathogenesis and prognosis of coVID-19 patients with digestive system.
基金the National Science and Technology Support Program of China(No.2007BAI10B01)the Science and Technology Development Project of TCM of Beijing(No.JJ-2010-70)+1 种基金the Scientific Research Innovation Team Project of Beijing University of Chinese Medicine(No.2011-CXTD-14)the open project of key disciplines of Beijing University of Chinese Medicine(No.2013-ZDXKKF-19).
文摘Objective:To explore Yan Zhenghua’s drug selection rule for treating digestive system diseases using data mining.Methods:The 609 medical records of digestive system diseases treated by Yan Zhenghua were collected and the herbs in these recipes were examined using a data mining technique.The correlativity between herb pairs and association rules was studied using an Apriori algorithm and the correlativity among multi-herbs was studied using a complex system entropy cluster technique.Results:Yan Zhenghua’s treatment of digestive system diseases featured 15 herbs prescribed at least 159 times each,22 herb pairs prescribed at least 155 times each,and eight frequently used herb core combinations.A confidence greater than 0.91 and a support level greater than 20%were achieved using the modified mutual information method.Conclusion:The data mining results conformed to findings from clinical practice.The data mining method is a valuable technique with which to study the experience of famous,elderly traditional Chinese medicine physicians.
文摘Background: MicroRNAs (miRNAs) negatively regulate the gene expression and act as tumor suppressors or oncogenes in carcinogenesis. The association between single nucleotide polymorphism (SNP) in miR-196a2 rs11614913 and the susceptibility of digestive system cancers was inconsistent in previous studies. Methods: A standardized search of PubMed, Embase, and Cochrane library databases for publications on miR-196a2 rs11614913 polymorphism and digestive system cancer risk was performed. Then the genotype data were analyzed in a meta-analysis. Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to evaluate the association. Test of heterogeneity, sensitivity analysis and assessment of publication bias were conducted in the present meta-analysis by STATA software 12.0. Results: An updated meta-analysis based on 34 independent case-control studies consisting of 13,013 cases and 16,046 controls was performed to address this association. There was a remarkable association between miR-196a2 rs11614913 polymorphism and overall digestive system cancer risk, especially in Asian populations. Moreover, subgroup analysis revealed that variant C allele increased risk of colorectal carcinoma, gastric cancer and hepatocellular carcinoma (HCC), compared with wild T allele. Conclusions: There was a remarkable association between miR-196a2 rs11614913 polymorphism and overall digestive system cancer risk, especially in Asian populations.
基金Supported by "Kapodistrias" Research Program, Special Accounts Research Fund 70/4/6549, National and Kapodistrian University of Athens, Greece
文摘E2F family of transcription factors regulates various cellular functions related to cell cycle and apoptosis. Its individual members have traditionally been classified into activators and repressors, based on in vitro studies. However their contribution in human cancer is more complicated and difficult to predict. We review current knowledge on the expression of E2Fs in digestive system malignancies and its clinical implications for patient prognosis and treatment. E2F1, the most extensively studied member and the only one with prognostic value, exhibits a tumor-suppressing activity in esophageal, gastric and colorectal adenocarcinoma, and in hepatocellular carcinoma (HCC), whereas in pancreatic ductal adenocarcinoma and esophageal squamous cell carcinoma may function as a tumorpromoter. In the latter malignancies, E2F1 immunohistochemical expression has been correlated with higher tumor grade and worse patient survival, whereas in esophageal, gastric and colorectal adenocarcinomas is a marker of increased patient survival. E2F2 has only been studied in colorectal cancer, where its role is not considered significant. E2F4's role in colorectal, gastric and hepatic carcinogenesis is tumor-promoting. E2F8 is strongly upregulated in human HCC, thus possibly contributing to hepatocarcinogenesis. Adenoviral transfer of E2F as gene therapy to sensitize pancreatic cancer cells for chemotherapeutic agents has been used in experimental studies. Other therapeutic strategies are yet to be developed, but it appears that targeted approaches using E2F-agonists or antagonists should take into account the tissue-dependent function of each E2F member. Further understanding of E2Fs' contribution in cellular functions in vivo would help clarify their role in carcinogenesis.
基金Supported by National Natural Science Foundation of China,No.81273735Science and Technology Planning Project of Guangdong Province,China,No.2013B021800169Traditional Chinese Medicine Science and Technology Research Projects of Guangdong Provincial Hospital of Chinese Medicine,China,No.YN2014ZH05
文摘There are several malignancies of the digestive system(including gastric, pancreatic and colorectal cancers, and hepatocellular carcinoma), which are the most common types of cancer and a major cause of death worldwide. MicroRNA(miR)-7 is abundant in the pancreas, playing an important role in pancreatic development and endocrine function. Expression of miR-7 is downregulated in digestive system malignancies compared with normal tissue. Although there are contrasting results for miR-7 expression, almost all research reveals that miR-7 is a tumor suppressor, by targeting various genes in specific pathways. Moreover, miR-7 can target different genes simultaneously in different malignancies of the digestive system. By acting on many cytokines, miR-7 is also involved in many gastrointestinal inflammatory diseases as a significant carcinogenic factor. Consequently, miR-7 might be a biomarker or therapeutic target gene in digestive system malignancies.
基金Supported by the National Natural Science Foundation of China,No.816660412 to Xie R and No.81160265 to Xu JY
文摘The Na^+/Ca^(2+) exchanger(NCX) protein family is a part of the cation/Ca^(2+) exchanger superfamily and participates in the regulation of cellular Ca^(2+) homeostasis. NCX1, the most important subtype in the NCX family, is expressed widely in various organs and tissues in mammals and plays an especially important role in the physiological and pathological processes of nerves and the cardiovascular system. In the past few years, the function of NCX1 in the digestive system has received increasing attention; NCX1 not only participates in the healing process of gastric ulcer and gastric mucosal injury but also mediates the development of digestive cancer, acute pancreatitis, and intestinal absorption.This review aims to explore the roles of NCX1 in digestive system physiology and pathophysiology in order to guide clinical treatments.
