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Advances of stereotactic body radiotherapy in pancreatic cancer 被引量:6
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作者 qichun wei wei Yu +1 位作者 Lauren M.Rosati Joseph M.Herman 《Chinese Journal of Cancer Research》 SCIE CAS CSCD 2015年第4期349-357,共9页
Pancreatic cancer(PCA) is one of the most aggressive tumors with few effective treatment modalities. It is the 4th and 7th leading cause of cancer death in the United States and China, respectively. At the time of d... Pancreatic cancer(PCA) is one of the most aggressive tumors with few effective treatment modalities. It is the 4th and 7th leading cause of cancer death in the United States and China, respectively. At the time of diagnosis, only 20% of cases present with a resectable tumor, and about 40% with a locally advanced tumor that is considered unresectable. Even resected patients still have a poor prognosis, with an incidence of local recurrence ranging from 20% to 60%. It is also reported that up to 30% of PCA patients die from locally obstructive disease with few or no distant metastases. These findings have highlighted the importance of local radiation therapy in the treatment of PCA. As the role of conventional chemoradiotherapy remains controversial, the dawn of the pancreas stereotactic body radiation therapy(SBRT) era represents a potential paradigm shift in the management of PCA. SBRT delivers a higher biological effective dose to the tumor with sharp dose escalation in a shorter treatment time course. Pancreas SBRT is a novel therapeutic option to achieve local tumor control with minimal toxicity. Herein, we review the advancement of SBRT for PCA patients with different stages of pancreatic adenocarcinoma. 展开更多
关键词 Stereotactic body radiation therapy(SBRT) pancreatic cancer(PCA)
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Insights into treatment for hepatocellular carcinoma with tumor thrombus in the inferior vena cava or right atrium
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作者 Jia Yang Yongjie Shui +2 位作者 Lihong Liu Genhua Yu qichun wei 《Hepatobiliary Surgery and Nutrition》 SCIE 2024年第1期168-171,共4页
Hepatocellular carcinoma(HCC),one of the most common liver cancers,often has a poor prognosis when it involves macrovascular invasion.Oncological emergencies including pulmonary embolism,heart failure,and even sudden ... Hepatocellular carcinoma(HCC),one of the most common liver cancers,often has a poor prognosis when it involves macrovascular invasion.Oncological emergencies including pulmonary embolism,heart failure,and even sudden death could happen when it develops a tumor thrombus(TT)in the inferior vena cava(IVC)or right atrium(RA),indicating an exceptionally grim prognosis(1).Although systemic therapy is the only standard treatment recommended by guidelines(2),other treatment modalities are explored including surgery,radiotherapy,etc.in some centers.Surgery,as the only potential curative treatment,has been explored in several selected cases.A case of long-term survival of 15 years and cancer-free survival of 9 years was reported by surgical resection with a heart-first approach under cardiopulmonary bypass(CPB)(3),suggesting that aggressive surgery together with multidisciplinary treatments might achieve long survival.However,due to the aggressiveness and challenge of surgical resection-massive resection area,potential significant blood loss,and bypass needed,surgical resection is applied in very limited centers.Nevertheless,safety,efficacy,and long-term survival benefits for these patients are poorly investigated. 展开更多
关键词 Hepatocellular carcinoma(HCC) inferior vena cava(IVC) right atrium(RA) tumor thrombus(TT)
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Radiation-induced tumor immune microenvironments and potential targets for combination therapy 被引量:5
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作者 Siyu Guo Yihan Yao +6 位作者 Yang Tang Zengfeng Xin Dang Wu Chao Ni Jian Huang qichun wei Ting Zhang 《Signal Transduction and Targeted Therapy》 SCIE CSCD 2023年第6期2773-2794,共22页
As one of the four major means of cancer treatment including surgery,radiotherapy(RT),chemotherapy,immunotherapy,RT can be applied to various cancers as both a radical cancer treatment and an adjuvant treatment before... As one of the four major means of cancer treatment including surgery,radiotherapy(RT),chemotherapy,immunotherapy,RT can be applied to various cancers as both a radical cancer treatment and an adjuvant treatment before or after surgery.Although RT is an important modality for cancer treatment,the consequential changes caused by RT in the tumor microenvironment(TME)have not yet been fully elucidated.RT-induced damage to cancer cells leads to different outcomes,such as survival,senescence,or death.During RT,alterations in signaling pathways result in changes in the local immune microenvironment.However,some immune cells are immunosuppressive or transform into immunosuppressive phenotypes under specific conditions,leading to the development of radioresistance.Patients who are radioresistant respond poorly to RT and may experience cancer progression.Given that the emergence of radioresistance is inevitable,new radiosensitization treatments are urgently needed.In this review,we discuss the changes in irradiated cancer cells and immune cells in the TME under different RT regimens and describe existing and potential molecules that could be targeted to improve the therapeutic effects of RT.Overall,this review highlights the possibilities of synergistic therapy by building on existing research. 展开更多
关键词 MICROENVIRONMENT alterations SURGERY
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The role of tumor-associated macrophages(TAMs) in tumor progression and relevant advance in targeted therapy 被引量:19
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作者 Qiyao Yang Ningning Guo +3 位作者 Yi Zhou Jiejian Chen qichun wei Min Han 《Acta Pharmaceutica Sinica B》 SCIE CAS CSCD 2020年第11期2156-2170,共15页
Macrophages have a leading position in the tumor microenvironment(TME)which paves the way to carcinogenesis.Initially,monocytes and macrophages are recruited to the sites where the tumor develops.Under the guidance of... Macrophages have a leading position in the tumor microenvironment(TME)which paves the way to carcinogenesis.Initially,monocytes and macrophages are recruited to the sites where the tumor develops.Under the guidance of different microenvironmental signals,macrophages would polarize into two functional phenotypes,named as classically activated macrophages(M1)and alternatively activated macrophages(M2).Contrary to the anti-tumor effect of M1,M2 exerts anti-inflammatory and tumorigenic characters.In progressive tumor,M2 tumor-associated macrophages(TAMs)are in the majority,being vital regulators reacting upon TME.This review elaborates on the role of TAMs in tumor progression.Furthermore,prospective macrophage-focused therapeutic strategies,including drugs not only in clinical trials but also at primary research stages,are summarized followed by a discussion about their clinical application values.Nanoparticulate systems with efficient drug delivery and improved antitumor effect are also summed up in this article. 展开更多
关键词 Tumor-associated macrophages Tumor microenvironment Targeted drug delivery Tumor treatment Combined therapy IMMUNOTHERAPY Extracellular vesicles Nano-drug
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Human γδT-cell subsets and their involvement in tumor mmunity 被引量:12
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作者 Dang W u Pin Wu +2 位作者 Fuming Qiu qichun wei Jian Huang 《Cellular & Molecular Immunology》 SCIE CAS CSCD 2017年第3期245-253,共9页
γδT cells are a conserved population of innate lymphocytes with diverse structural and functional heterogeneity that participate in various immune responses during tumor progression. γδT cells perform potent immun... γδT cells are a conserved population of innate lymphocytes with diverse structural and functional heterogeneity that participate in various immune responses during tumor progression. γδT cells perform potent immunosurveillance by exerting direct cytotoxicity, strong cytokine production and indirect antitumor immune responses. However, certain γδT-cell subsets also contribute to tumor progression by facilitating cancer-related inflammation and immunosuppression. Here, we review recent observations regarding the antitumor and protumor roles of major structural and functional subsets of human γδT cells, describing how these subsets are activated and polarized, and how these events relate to subsequent function in tumor immunity. These studies provide insights into the manipulation of γδT-cell function to facilitate more targeted approaches for tumor therapy. 展开更多
关键词 ANTITUMOR γδT cells protumor SUBSETS tumor immunity
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Immune mediated support of metastasis:Implication for bone invasion
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作者 Zengfeng Xin Luying Qin +12 位作者 Yang Tang Siyu Guo Fangfang Li Yuan Fang Gege Li Yihan Yao Binbin Zheng Bicheng Zhang Dang Wu Jie Xiao Chao Ni qichun wei Ting Zhang 《Cancer Communications》 SCIE 2024年第9期967-991,共25页
Bone is a common organ affected by metastasis in various advanced cancers,including lung,breast,prostate,colorectal,and melanoma.Once a patient is diagnosed with bone metastasis,the patient’s quality of life and over... Bone is a common organ affected by metastasis in various advanced cancers,including lung,breast,prostate,colorectal,and melanoma.Once a patient is diagnosed with bone metastasis,the patient’s quality of life and overall survival are significantly reduced owing to a wide range ofmorbidities and the increasing difficulty of treatment.Many studies have shown that bone metastasis is closely related to bone microenvironment,especially bone immune microenvironment.However,the effects of various immune cells in the bone microenvironment on bone metastasis remain unclear.Here,we described the changes in various immune cells during bone metastasis and discussed their related mechanisms.Osteoblasts,adipocytes,and other non-immune cells closely related to bone metastasis were also included.This review also summarized the existing treatment methods and potential therapeutic targets,and provided insights for future studies of cancer bone metastasis. 展开更多
关键词 bone metastasis bone microenvironment cancer immune cell therapy
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