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Large-scale loss-of-function perturbations reveal a comprehensive epigenetic regulatory network in breast cancer
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作者 Yumei Wang Haiyan Wang +7 位作者 Wei Shao Yuhui Chen Yu Gui Chao Hu Xiaohong Yi Lijun Huang Shasha Li Dong Wang 《Cancer Biology & Medicine》 SCIE CAS CSCD 2024年第1期83-103,共21页
Objective:Epigenetic abnormalities have a critical role in breast cancer by regulating gene expression;however,the intricate interrelationships and key roles of approximately 400 epigenetic regulators in breast cancer... Objective:Epigenetic abnormalities have a critical role in breast cancer by regulating gene expression;however,the intricate interrelationships and key roles of approximately 400 epigenetic regulators in breast cancer remain elusive.It is important to decipher the comprehensive epigenetic regulatory network in breast cancer cells to identify master epigenetic regulators and potential therapeutic targets.Methods:We employed high-throughput sequencing-based high-throughput screening(HTS^(2))to effectively detect changes in the expression of 2,986 genes following the knockdown of 400 epigenetic regulators.Then,bioinformatics analysis tools were used for the resulting gene expression signatures to investigate the epigenetic regulations in breast cancer.Results:Utilizing these gene expression signatures,we classified the epigenetic regulators into five distinct clusters,each characterized by specific functions.We discovered functional similarities between BAZ2B and SETMAR,as well as CLOCK and CBX3.Moreover,we observed that CLOCK functions in a manner opposite to that of HDAC8 in downstream gene regulation.Notably,we constructed an epigenetic regulatory network based on the gene expression signatures,which revealed 8 distinct modules and identified 10 master epigenetic regulators in breast cancer.Conclusions:Our work deciphered the extensive regulation among hundreds of epigenetic regulators.The identification of 10 master epigenetic regulators offers promising therapeutic targets for breast cancer treatment. 展开更多
关键词 Epigenetic regulators breast cancer regulatory network HTS^(2)
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Unraveling the regulatory network of flower coloration in soybean:Insights into roles of GmMYBA3 and GmMYBR1
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作者 Ruifang Gao Yueqing Li +8 位作者 Yanan Wang Xiaotong Shan Siqi Yang Ye Zhang Saiyu Ma Chunbao Zhang Jianchun Qin Li Wang Xiang Gao 《The Crop Journal》 SCIE CSCD 2024年第2期443-455,共13页
Anthocyanins play crucial roles in pollen protection and pollinator attraction in flowering plants.However,the mechanisms underlying flower color determination and whether floral anthocyanin regulators participate in ... Anthocyanins play crucial roles in pollen protection and pollinator attraction in flowering plants.However,the mechanisms underlying flower color determination and whether floral anthocyanin regulators participate in other processes remain largely unresolved in soybeans(Glycine max).In this study,we investigated the genetic components and mechanisms governing anthocyanin biosynthesis in soybean flowers.Molecular and genetic studies have characterized two antagonistic regulators,the positive activator GmMYBA3 and the negative repressor GmMYBR1,that modulate the gene expression of anthocyanin biosynthesis in soybean flowers.Further findings revealed a regulatory interplay between GmMYBA3 and GmMYBR1 bridged by GmTT8a,highlighting the complexity of anthocyanin regulation in different soybean organs.Exploration of additional soybean cultivars demonstrated the universality of GmMYBA3 and GmMYBR1 in regulating floral anthocyanin biosynthesis-related genes,with GmF3’5’H identified as a crucial determinant of white flower color.This study provides a molecular mechanism underlying soybean flower color determination,paving the way for the molecular modification of soybean flowers to probably enhance their resistance to abiotic stresses and attractiveness to pollinators. 展开更多
关键词 ANTHOCYANIN Flower color determination MBW complex MYB repressor Pleiotropic regulator
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Low Level of Cystic Fibrosis Transmembrane Conductance Regulator Is Associated with Human Sperm Autophagy and Vitality
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作者 Jie Hu Han Liu +4 位作者 Chaoyan Ou Liangzhao Liu Linfeng Mo Xuming Liang Yonghua He 《Advances in Reproductive Sciences》 CAS 2024年第1期23-36,共14页
Low sperm motility is one of the main causes of male infertility. Cystic fibrosis transmembrane conductance regulator (CFTR, an anion channel protein) is related to the progressive motility of sperm. CFTR disruptor CF... Low sperm motility is one of the main causes of male infertility. Cystic fibrosis transmembrane conductance regulator (CFTR, an anion channel protein) is related to the progressive motility of sperm. CFTR disruptor CFTRinh-172 or forskolin (FSK) in this study were used to treat human sperm separately, and the rates of sperm autophagy and progressive motility, mitochondrial membrane potential (MMP) and ATP concentration, and the expression levels of related factors were detected to explore their relationship. It was showed that sperms treated with CFTRinh-172 or FSK reduced the levels of cAMP, CFTR and PKA, but increased sperm autophagy rate, expression levels of AMPK and LC3B. However, reactive oxygen species content had no significant difference. It was indicated that low level of CFTR performed with cAMP and its downstream effectors such as PKA and AMPK to regulate mitochondrial structure and function, leading to increased autophagy rate and reduced vitality of sperm. 展开更多
关键词 Low Level of Cystic Fibrosis Transmembrane Conductance regulator Is Associated with Human Sperm Autophagy and Vitality
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The Effect of Plant Growth Regulators on Physico-Chemical Properties of Safflower (Carthamus tinctorius L.) Derived Biodiesel
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作者 Charles Mazereku Jerekias Gandure Clever Ketlogetswe 《Open Journal of Applied Sciences》 2024年第4期1052-1069,共18页
Global concerns about the environmental impact of combustion emissions from petroleum fuels influence new research to seek for alternative energy sources. The current study investigates the possibility of using safflo... Global concerns about the environmental impact of combustion emissions from petroleum fuels influence new research to seek for alternative energy sources. The current study investigates the possibility of using safflower (Carthamus tinctorius L.) as an alternative biodiesel raw material. Four plant growth regulators (PGR) were used to boost the production of safflower. Thirteen treatments were constituted from the four plant regulators and applied to the safflower crop arranged in completely randomised design, repeated three times. The results show that the effect of plant growth regulators was not more than that of the control. More studies have to be channelled towards the relationship between safflower and plant growth regulators. 展开更多
关键词 SAFFLOWER Biodiesel Plant Growth regulators
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The virulence regulator AbsR in avian pathogenic Escherichia coli has pleiotropic effects on bacterial physiology
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作者 Dongfang Zhao Haobo Zhang +4 位作者 Xinyang Zhang Fengwei Jiang Yijing Li Wentong Cai Ganwu Li 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第2期649-668,共20页
Avian pathogenic Escherichia coli(APEC)belonging to extraintestinal pathogenic E.coli(ExPEC)can cause severe infections in extraintestinal tissues in birds and humans,such as the lungs and blood.MprA(microcin producti... Avian pathogenic Escherichia coli(APEC)belonging to extraintestinal pathogenic E.coli(ExPEC)can cause severe infections in extraintestinal tissues in birds and humans,such as the lungs and blood.MprA(microcin production regulation,locus A,herein renamed AbsR,a blood survival regulator),a member of the MarR(multiple antibiotic resistance regulator)transcriptional regulator family,governs the expression of capsule biosynthetic genes in human ExPEC and represents a promising druggable target for antimicrobials.However,a deep understanding of the AbsR regulatory mechanism as well as its regulon is lacking.In this study,we present a systems-level analysis of the APEC AbsR regulon using ChIP-Seq(chromatin immunoprecipitation sequencing)and RNA-Seq(RNA sequencing)methods.We found that AbsR directly regulates 99 genes and indirectly regulates 667 genes.Furthermore,we showed that:1)AbsR contributes to antiphagocytotic effects by macrophages and virulence in a mouse model for systemic infection by directly activating the capsular gene cluster;2)AbsR positively impacts biofilm formation via direct regulation of the T2SS(type II secretion system)but plays a marginal role in virulence;and 3)AbsR directly upregulates the acid tolerance signaling system EvgAS to withstand acid stress but is dispensable in ExPEC virulence.Finally,our data indicate that the role of AbsR in virulence gene regulation is relatively conserved in ExPEC strains.Altogether,this study provides a comprehensive analysis of the AbsR regulon and regulatory mechanism,and our data suggest that AbsR likely influences virulence primarily through the control of capsule production.Interestingly,we found that AbsR severely represses the expression of the type I-F CRISPR(clustered regularly interspaced short palindromic repeats)-Cas(CRISPR associated)systems,which could have implications in CRISPR biology and application. 展开更多
关键词 avian pathogenic Escherichia coli(APEC) extraintestinal pathogenic Escherichia coli(ExPEC) AbsR RNA-SEQ CHIP-SEQ gene regulation
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Mutations in epigenetic regulator KMT2C detected by liquid biopsy are associated with worse survival in prostate cancer patients
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作者 SHA ZHU NANWEI XU +10 位作者 JIAYU LIANG FENGNIAN ZHAO ZILIN WANG YUCHAO NI JINDONG DAI JINGE ZHAO XINGMING ZHANG JUNRU CHEN GUANGXI SUN PENGFEI SHEN HAO ZENG 《Oncology Research》 SCIE 2023年第4期605-614,共10页
Background:KMT2(lysine methyltransferase)family enzymes are epigenetic regulators that activate gene transcription.KMT2C is mainly involved in enhancer-associated H3K4me1,and is also one of the top mutated genes in ca... Background:KMT2(lysine methyltransferase)family enzymes are epigenetic regulators that activate gene transcription.KMT2C is mainly involved in enhancer-associated H3K4me1,and is also one of the top mutated genes in cancer(6.6%in pan-cancer).Currently,the clinical significance of KMT2C mutations in prostate cancer is understudied.Methods:We included 221 prostate cancer patients diagnosed between 2014 and 2021 in West China Hospital of Sichuan University with cell-free DNA-based liquid biopsy test results in this study.We investigated the association between KMT2C mutations,other mutations,and pathways.Furthermore,we evaluated the prognostic value of KMT2C mutations,measured by overall survival(OS)and castration resistance-free survival(CRFS).Also,we explored the prognostic value of KMT2C mutations in different patient subgroups.Lastly,we investigated the predictive value of KMT2C mutations in individuals receiving conventional combined anti-androgen blockade(CAB)and abiraterone(ABI)as measured by PSA progression-free survival(PSA-PFS).Results:The KMT2C mutation rate in this cohort is 7.24%(16/221).KMT2C-mutated patients showed worse survival than KMT2C-wild type(WT)patients regarding both CRFS and OS(CRFS:mutated:9.9 vs.WT:22.0 months,p=0.015;OS:mutated:71.9 vs.WT 137.4 months,p=0.012).KMT2C mutations were also an independent risk factor in OS[hazard ratio:3.815(1.461,9.96),p=0.006]in multivariate analyses.Additionally,we explored the association of KMT2C mutations with other genes.This showed that KMT2C mutations were associated with Serine/Threonine-Protein Kinase 11(STK11,p=0.004)and Catenin Beta 1(CTNNB1,p=0.008)mutations.In the CAB treatment,KMT2C-mutated patients had a significantly shorter PSA-PFS compared to KMT2C-WT patients.(PSA-PFS:mutated:9.9 vs.WT:17.6 months,p=0.014).Moreover,KMT2C mutations could effectively predict shorter PSA-PFS in 10 out of 23 subgroups and exhibited a strong trend in the remaining subgroups.Conclusions:KMT2C-mutated patients showed worse survival compared to KMT2C-WT patients in terms of both CRFS and OS,and KMT2C mutations were associated with STK11 and CTNNB1 mutations.Furthermore,KMT2C mutations indicated rapid progression during CAB therapy and could serve as a potential biomarker to predict therapeutic response in prostate cancer. 展开更多
关键词 KMT2C Epigenetic regulator Liquid biopsy Prostate cancer SURVIVAL Biomarker
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Comparative genomic analysis of N6-methyladenosine regulators in nine rosaceae species and functional characterization in response to drought stress in pear
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作者 Chenyang Han Huizhen Dong +3 位作者 Qinghai Qiao Yuqin Dai Xiaosan Huang Shaoling Zhang 《Horticultural Plant Journal》 SCIE CAS CSCD 2023年第4期693-704,共12页
N 6-methylated adenine(m6 A)is an emerging epigenetic marker in eukaryotic organisms that plays an important role in biological functions and in enriching genetic information.m6 A exerts these functions via the dynami... N 6-methylated adenine(m6 A)is an emerging epigenetic marker in eukaryotic organisms that plays an important role in biological functions and in enriching genetic information.m6 A exerts these functions via the dynamic interplay among m6 A writers,erasers,and readers.However,little is known about the underlying mechanisms of m6 A in plant growth and stress responses.Here,we identified 276 masked m6 A regulators from nine Rosaceae species(Pyrus bretschneideri,Pyrus betulifolia,Pyrus communis,Malus domestica,Fragaria vesca,Prunus avium,Prunus mume,Prunus persica,and Rubus occidentalis).We classified and named these genes in more detail based on phylogenetic and synteny analysis.The expansion of m6 A regulators in Maloideae was dated back to the recent whole-genome duplication(WGD)in Rosaceae.Based on the expression pattern analysis and gene structure analysis of m6 A regulators,m6 A was shown to be a significant factor in regulating plant development and resistance.In addition,PbrMTA1-silenced pear plants displayed significantly reduced drought tolerance and chlorophyll content,as well as increased electrolyte leakage and concentrations of malondialdehyde and H2 O2. 展开更多
关键词 Pyrus bretschneideri RNA methylation m6A regulators ROSACEAE Evolution Transcriptome Drought stress VIGS
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Species-specific regulatory pathways of small RNAs play sophisticated roles in flower development in Dimocarpus longan Lour. 被引量:1
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作者 Bo Liu Guanliang Li +5 位作者 Chengjie Chen Zaohai Zeng Jing Xu Jisen Zhang Rui Xia Yuanlong Liu 《Horticultural Plant Journal》 SCIE CAS CSCD 2023年第2期237-249,共13页
Flower development plays vital role in horticultural plants.Post-transcriptional regulation via small RNAs is important for plant flower development.To uncover post-transcriptional regulatory networks during the flowe... Flower development plays vital role in horticultural plants.Post-transcriptional regulation via small RNAs is important for plant flower development.To uncover post-transcriptional regulatory networks during the flower development in Dimocarpus longan Lour.‘Shixia’,an economically important fruit crop in subtropical regions,we collected and analyzed sRNA deep-sequencing datasets and degradome libraries Apart from identifying miRNAs and phased siRNA generating loci(PHAS loci),120 hairpin loci,producing abundant sRNAs,were identified by in-house protocols.Our results suggested that 56 miRNA-target pairs,2221-nt-PHAS loci,and 111 hairpin loci are involved in posttranscriptional gene silencing during longan reproductive development.Lineage-specific or species-specific post-transcriptional regulatory modules have been unveiled,including miR482-PHAS and miRN15.miR482-PHAS might be involved in longan flower development beyond their conserved roles in plant defense,and miRN15 is a novel miRNA likely associated with a hairpin locus(HPL-056)to regulate strigolactone receptor gene DWARF14(D14)and the biogenesis of phasiRNAs from D14.These small RNAs are enriched in flower buds,suggesting they are likely involved in post-transcriptional regulatory networks essential for longan flower development via the strigolactone signaling pathway. 展开更多
关键词 Dimocarpus longan Lour Small RNAs Flower development Post-transcriptional regulation
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The regulatory role of Pin1 in neuronal death
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作者 Shu-Chao Wang Xi-Min Hu Kun Xiong 《Neural Regeneration Research》 SCIE CAS CSCD 2023年第1期74-80,共7页
Regulated cell death predominantly involves apoptosis,autophagy,and regulated necrosis.It is vital that we understand how key regulatory signals can control the process of cell death.Pin1 is a cis-trans isomerase that... Regulated cell death predominantly involves apoptosis,autophagy,and regulated necrosis.It is vital that we understand how key regulatory signals can control the process of cell death.Pin1 is a cis-trans isomerase that catalyzes the isomerization of phosphorylated serine or threonine-proline motifs of a protein,thereby acting as a crucial molecular switch and regulating the protein functionality and the signaling pathways involved.However,we know very little about how Pin1-associated pathways might play a role in regulated cell death.In this paper,we review the role of Pin1 in regulated cell death and related research progress and summarize Pin1-related pathways in regulated cell death.Aside from the involvement of Pin1 in the apoptosis that accompanies neurodegenerative diseases,accumulating evidence suggests that Pin1 also plays a role in regulated necrosis and autophagy,thereby exhibiting distinct effects,including both neurotoxic and neuroprotective effects.Gaining an enhanced understanding of Pin1 in neuronal death may provide us with new options for the development of therapeutic target for neurodegenerative disorders. 展开更多
关键词 apoptosis autophagy CALPAIN central nervous system NECROPTOSIS NECROSIS neurodegenerative diseases NEURON PIN1 regulated neuronal death
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Positive regulatory role of R2R3 MYBs in terpene biosynthesis in Lilium‘Siberia’
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作者 Yanhong Guo Ziyu Guo +5 位作者 Jian Zhong Yilin Liang Yuan Feng Peng Zhang Qixiang Zhang Ming Sun 《Horticultural Plant Journal》 SCIE CAS CSCD 2023年第5期1024-1038,共15页
Terpenoids are the main components contributing to the fragrance of Lilium‘Siberia’,and LiTPS2 plays a critical role in the biosynthesis of monoterpenoids.Although the major terpene synthases in Lilium‘Siberia’hav... Terpenoids are the main components contributing to the fragrance of Lilium‘Siberia’,and LiTPS2 plays a critical role in the biosynthesis of monoterpenoids.Although the major terpene synthases in Lilium‘Siberia’have been identified,how these TPS genes are transcriptionally regulated remains elusive in this distinguished flower.This study aimed to identify transcription factors that regulate the terpene synthesis in Lilium,and disclose the related underlying transcriptional regulation mechanism.In this study,we identified three R2R3-MYB TFs—LiMYB1,LiMYB305 and LiMYB330,which were involved in regulating the biosynthesis of terpenes in Lilium‘Siberia’.Quantitative real-time PCR showed spatial and temporal expression patterns consistent with the emission patterns of terpene compounds.When LiMYB1,LiMYB305 and LiMYB330were overexpressed in flowers,the release of some main monoterpenes,such as linalool and ocimene,as well as the expression of TPS genes,especially for LiTPS2,were enhanced.A virus-induced gene silencing(VIGS)assay showed that silencing these three LiMYBs decreased the level of monoterpenes by down-regulating the expression of the TPS genes.The yeast one-hybrid and transient expression assays indicated that all three LiMYBs could bind to and activate the promoter of LiTPS2.Moreover,the yeast two-hybrid assay verified that LiMYB1 could interact with LiMYB308 and LiMYB330,indicating their synergistic roles in the regulation of floral terpene biosynthesis.In general,these results indicated that LiMYB1,LiMYB305,and LiMYB330 might play essential roles in terpene biosynthesis in Lilium and would provide a new perspective for the transcriptional regulation of volatile terpenes in flowers. 展开更多
关键词 LILIUM R2R3-MYB Expression analysis TERPENES REGULATION
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Regulatory role of NFAT1 signaling in articular chondrocyteactivities and osteoarthritis pathogenesis
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作者 MINGCAI ZHANG TANNER CAMPBELL +1 位作者 SPENCER FALCON JINXI WANG 《BIOCELL》 SCIE 2023年第10期2125-2132,共8页
Osteoarthritis (OA), the most common form of joint disease, is characterized clinically by joint pain, stiffness,and deformity. OA is now considered a whole joint disease;however, the breakdown of the articular cartil... Osteoarthritis (OA), the most common form of joint disease, is characterized clinically by joint pain, stiffness,and deformity. OA is now considered a whole joint disease;however, the breakdown of the articular cartilage remains themajor hallmark of the disease. Current treatments targeting OA symptoms have a limited impact on impeding orreversing the OA progression. Understanding the molecular and cellular mechanisms underlying OA development isa critical barrier to progress in OA therapy. Recent studies by the current authors’ group and others have revealedthat the nuclear factor of activated T cell 1 (NFAT1), a member of the NFAT family of transcription factors, regulatesthe expression of many anabolic and catabolic genes in articular chondrocytes of adult mice. Mice lacking NFAT1exhibit normal skeletal development but display OA in both appendicular and spinal facet joints as adults. Thisreview mainly focuses on the recent advances in the regulatory role of NFAT1 transcription factor in the activities ofarticular chondrocytes and its implication in the pathogenesis of OA. 展开更多
关键词 OSTEOARTHRITIS CHONDROCYTE NFAT1 Transcription factor Regulation of gene expression
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Revisiting Port Regulatory Governance & Substance: Towards a Holistic Supply Chain Approach
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作者 Constantınos Chlomoudıs Petros Pallıs Theodore Stylıadıs 《Journal of Environmental Science and Engineering(B)》 2023年第4期206-210,共5页
The evolution and integration of ports in global logistics chains has altered their traditional role while has initiated restructuring processes in many ports worldwide. While most of the research addresses this issue... The evolution and integration of ports in global logistics chains has altered their traditional role while has initiated restructuring processes in many ports worldwide. While most of the research addresses this issue by highlighting the need for re-positioning and redefining the role of the port within the supply chains, not much attention has been given to the structure, scope and reach as well as to the tools of regulation hat competent authorities could exploit in order to avert potential abusive actions of global powerful actors along the containerized transport chain, that would affect the competitive functioning of distinct segment or the integrity of supply chains. In this context, we propose the reconceptualization and reinforcement of the regulatory governance structures of ports on a national and international level as well as the extension of the scope of ports’ regulations along the supply chain to counterbalance the globalization, consolidation and integration of containerized transport actors. 展开更多
关键词 Ports CONCENTRATION supply chain integration REGULATION
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Research on the Theory of Governmental Environmental Regulatory Responsibility
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作者 Kexin Gao 《环境科学前沿(中英文版)》 2023年第1期1-3,共3页
In recent years,the environmental pollution caused by the rapid development of tourist attractions has increasingly become the focus of society,which has triggered scholars to think about the government's responsi... In recent years,the environmental pollution caused by the rapid development of tourist attractions has increasingly become the focus of society,which has triggered scholars to think about the government's responsibility for environmental regulation,and has generated a variety of theories in the academic world.For example,the stakeholder theory extends corporate governance to the regulation of tourism scenic spots,and achieves the purpose of perfecting the environmental regulation of tourism scenic spots by continuously enriching the scope of stakeholders'subjects;the property rights theory analyzes the transaction costs generated by various economic activities in the regulation of tourism scenic spots from macro and micro perspectives,and the public goods theory clarifies the concept,types and characteristics of tourism scenic spots as public goods.Therefore,based on stakeholder theory,property rights theory and public goods theory,this paper explores and clarifies the content of the government's responsibility in the environmental regulation of tourism scenic spots,and tries to further enrich the theoretical results of the government's environmental regulation responsibility,in order to provide new ideas for the sustainable development of tourism scenic spots from the theoretical point of view. 展开更多
关键词 Tourist Attractions STAKEHOLDERS Environmental Regulation Model
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A comparative study of digital low dropout regulators 被引量:1
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作者 Mo Huang Yan Lu Rui P.Martins 《Journal of Semiconductors》 EI CAS CSCD 2020年第11期52-60,共9页
Granular power management in a power-efficient system on a chip(SoC)requires multiple integrated voltage regulators with a small area,process scalability,and low supply voltage.Conventional on-chip analog low-dropout ... Granular power management in a power-efficient system on a chip(SoC)requires multiple integrated voltage regulators with a small area,process scalability,and low supply voltage.Conventional on-chip analog low-dropout regulators(ALDOs)can hardly meet these requirements,while digital LDOs(DLDOs)are good alternatives.However,the conventional DLDO,with synchronous control,has inherently slow transient response limited by the power-speed trade-off.Meanwhile,it has a poor power supply rejection(PSR),because the fully turned-on power switches in DLDO are vulnerable to power supply ripples.In this comparative study on DLDOs,first,we compare the pros and cons between ALDO and DLDO in general.Then,we summarize the recent DLDO advanced techniques for fast transient response and PSR enhancement.Finally,we discuss the design trends and possible directions of DLDO. 展开更多
关键词 low dropout regulator(LDO) digital control fast transient response power supply rejection(PSR) integrated voltage regulator
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Regulators of liver cancer stem cells 被引量:1
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作者 Kai Liu Jing-Hsiung James Ou 《World Journal of Stem Cells》 SCIE 2021年第8期1127-1133,共7页
Hepatocellular carcinoma(HCC)is a leading cause of cancer deaths.It is often detected at a stage when there are few therapeutic options.Liver cancer stem cells(LCSCs)are highly tumorigenic and resistant to chemotherap... Hepatocellular carcinoma(HCC)is a leading cause of cancer deaths.It is often detected at a stage when there are few therapeutic options.Liver cancer stem cells(LCSCs)are highly tumorigenic and resistant to chemotherapy and radiation therapy.Their presence in HCC is a major reason why HCC is difficult to treat.The development of LCSCs is regulated by a variety of factors.This review summarizes recent advances on the factors that regulate the development of LCSCs.Due to the importance of LCSCs in the development of HCC,a better understanding of how LCSCs are regulated will help to improve the treatments for HCC patients. 展开更多
关键词 Hepatocellular carcinoma Liver cancer stem cells Pluripotency transcription factors Stem cell signaling Genetic regulators Epigenetic regulators
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Sex-determining region Y box-containing genes: regulators and biomarkers in gynecological cancers 被引量:4
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作者 Jiali Hu Ke Li +4 位作者 Zhanghuan Li Chao Gao Fei Guo Yingmei Wang Fengxia Xue 《Cancer Biology & Medicine》 SCIE CAS CSCD 2019年第3期462-474,共13页
Sex-determining region Y box-containing genes are transcription factors with roles in multiple biological processes, including cell differentiation, proliferation, and apoptosis.Sex-determining region Y box-containing... Sex-determining region Y box-containing genes are transcription factors with roles in multiple biological processes, including cell differentiation, proliferation, and apoptosis.Sex-determining region Y box-containing genes have also been shown to act as regulators and biomarkers in the progression of many different cancers, including gynecological cancers such as ovarian, cervical,and endometrial cancer.In this review, we summarize the contrasting regulatory roles of Sex-determining region Y box-containing genes in different gynecological cancers, as promotors with high expression levels or as suppressors with low expression levels.Expression levels of Sex-determining region Y box-containing genes were also identified as biomarkers of clinical features, including International Federation of Gynecology and Obstetrics stage, histopathologic grade together with disease-free survival, and treatment efficacy in patients with gynecological cancers.An understanding of the mechanisms whereby Sex-determining region Y box-containing genes regulate the progression of gynecological cancers will aid in the development of novel diagnostic and therapeutic strategies, while analysis of Sex-determining region Y box-containing expression levels will help to predict the prognosis of patients with gynecological cancers. 展开更多
关键词 Sex-determining region Y box-containing gene GYNECOLOGICAL cancer regulator biomarker clinical feature progression
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TaARR1, a cytokinin response regulator gene in Triticum aestivum, is essential in plant N starvation tolerance via regulating the N acquisition and N assimilation 被引量:4
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作者 YANG Meng-ya CHEN Jia-qi +2 位作者 TIAN He-yang NI Chen-yang XIAO Kai 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2019年第12期2691-2702,共12页
Plant N starvation response is closely associated with the N signaling components that involve transduction of the low-N cues. In this study, we functionally characterized Ta ARR1, a cytokinin(CK) response regulator g... Plant N starvation response is closely associated with the N signaling components that involve transduction of the low-N cues. In this study, we functionally characterized Ta ARR1, a cytokinin(CK) response regulator gene in Triticum aestivum, in mediating the N starvation adaptation in plants. Ta ARR1 harbors two conserved domains specified by plant ARR family members;subcellular localization analysis indicated its target onto nucleus after endoplasmic reticulum assortment. Ta ARR1 displayed modified expression upon the N starvation stressor, showing upregulated expression in roots and leaves over a 27-h N starvation treatment and whose induced transcripts were gradually recovered along with progression of the N recovery treatment. The tobacco lines overexpressing Ta ARR1 displayed improved low-N stress tolerance, displaying enlarged phenotype, increased biomass and N accumulation, and enhanced glutamine synthetase(GS) activities compared with wild type(WT) following the N starvation treatment. Expression analysis on genes encoding the nitrate transporter(NRT) and GS proteins in Nicotiana tabacum revealed that Nt NRT2.2 and Nt GS3 are upregulated in expression in the N-deprived transgenic lines, whose expression patterns were contrasted to other above family genes that were unaltered on transcripts between the transgenic lines and WT. Transgene analysis validated the function of Nt NRT2.2 and Nt GS3 in regulating N accumulation, GS activity, growth traits, and N use efficiency in plants. These results suggested the internal connection between the Ta ARR1-mediated N starvation tolerance and the modified transcription of distinct N acquisitionand assimilation-associated genes. Our investigation together indicates that Ta ARR1 is essential in plant N starvation adaptation due to the gene function in transcriptionally regulating distinct NRT and GS genes that affect plant N uptake and assimilation under the N starvation condition. 展开更多
关键词 wheat(Triticum AESTIVUM L.) CYTOKININ response regulator GENE expression N STARVATION functional characterization
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Improving maize grain yield by formulating plant growth regulator strategies in North China 被引量:8
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作者 GONG Li-sha QU Shu-jie +5 位作者 HUANG Guan-min GUO Yu-ling ZHANG Ming-cai LI Zhao-hu ZHOU Yu-yi DUAN Liu-sheng 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2021年第2期622-632,共11页
Plant growth regulators(PGRs) are artificially synthesized compounds that have become an important technical guarantee for agricultural production. EDAH(containing 27% ethephon and 3% DA-6) has been proven to inhibit ... Plant growth regulators(PGRs) are artificially synthesized compounds that have become an important technical guarantee for agricultural production. EDAH(containing 27% ethephon and 3% DA-6) has been proven to inhibit stalk elongation, promote stalk bold and increase mechanical strength and number of vascular bundles. DA-6 could enhance plant photosynthetic capacity and promote cell division and growth. In our study, experiments were performed at summer maize growing season during 2018–2019. The result showed that plant height, ear height and center of gravity height of maize with EDAH+DA-6 treatment were decreased by 10.18, 16.77 and 13.21%, respectively;leaf area and leaf area index also significantly(P<0.001) decreased by 24.11 and 60.15%, respectively;the value of mean tilt angle significantly(P<0.001) increased by 16.72% compared with the control plants, which meant that EDAH+DA-6 could shape more compact plant type. Therefore, lodging rate of maize with EDAH+DA-6 treatment decreased by 6.95% compared with control plants, and the grain yield was increased by 15.51%. In addition, EDAH+DA-6 treatment significantly improved the quality of maize base stalks, such as improving mechanical properties, which increased maize base stalk crushing strength by 22.23%;increased the hemicellulose, cellulose and lignin contents by 6.93, 3.87 and 30.21%, respectively. In conclusion, EDAH+DA-6 treatment could improve summer maize yield by shaping plant morphological characteristics and group photosynthesis. 展开更多
关键词 plant grown regulators canopy structure lodging resistance PHOTOSYNTHETIC
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Emerging role of cystic fibrosis transmembrane conductance regulator- an epithelial chloride channel in gastrointestinal cancers 被引量:3
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作者 Yuning Hou Xiaoqing Guan +1 位作者 Zhe Yang Chunying Li 《World Journal of Gastrointestinal Oncology》 SCIE CAS 2016年第3期282-288,共7页
Cystic fibrosis transmembrane conductance regulator(CFTR), a glycoprotein with 1480 amino acids, has been well established as a chloride channel mainly expressed in the epithelial cells of various tissues and organs s... Cystic fibrosis transmembrane conductance regulator(CFTR), a glycoprotein with 1480 amino acids, has been well established as a chloride channel mainly expressed in the epithelial cells of various tissues and organs such as lungs, sweat glands, gastrointestinal system, and reproductive organs. Although defective CFTR leads to cystic fibrosis, a common genetic disorder in the Caucasian population, there is accumulating evidence that suggests a novel role of CFTR in various cancers, especially in gastroenterological cancers, such as pancreatic cancer and colon cancer. In this review, we summarize the emerging findings that link CFTR with various cancers, with focus on the association between CFTR defects and gastrointestinal cancers as well as the underlying mechanisms. Further study of CFTR in cancer biology may help pave a new way for the diagnosis and treatment of gastrointestinal cancers. 展开更多
关键词 Gastrointestinal cancer Protein interaction CYSTIC fibrosis TRANSMEMBRANE CONDUCTANCE regulator Nuclear factor k B Signaling molecule
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Long non-coding RNA: The functional regulator of mesenchymal stem cells 被引量:3
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作者 Zhong-Yu Xie Peng Wang +1 位作者 Yan-Feng Wu Hui-Yong Shen 《World Journal of Stem Cells》 SCIE CAS 2019年第3期167-179,共13页
Mesenchymal stem cells(MSCs) are a subset of multipotent stroma cells residing in various tissues of the body. Apart from supporting the hematopoietic stem cell niche, MSCs possess strong immunoregulatory ability and ... Mesenchymal stem cells(MSCs) are a subset of multipotent stroma cells residing in various tissues of the body. Apart from supporting the hematopoietic stem cell niche, MSCs possess strong immunoregulatory ability and multiple differentiation potentials. These powerful capacities allow the extensive application of MSCs in clinical practice as an effective treatment for diseases.Therefore, illuminating the functional mechanism of MSCs will help to improve their curative effect and promote their clinical use. Long noncoding RNA(LncRNA) is a novel class of noncoding RNA longer than 200 nt. Recently,multiple studies have demonstrated that LncRNA is widely involved in growth and development through controlling the fate of cells, including MSCs. In this review, we highlight the role of LncRNA in regulating the functions of MSCs and discuss their participation in the pathogenesis of diseases and clinical use in diagnosis and treatment. 展开更多
关键词 MESENCHYMAL stem CELLS Long NON-CODING RNA regulator MULTIPOTENT stroma CELLS
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