期刊文献+
共找到8篇文章
< 1 >
每页显示 20 50 100
Perturbation of autophagy pathways in murine alveolar macrophage by 2D TMDCs is chalcogen-dependent
1
作者 Xiaofei Zhou Weitao Jin +3 位作者 Rui Zhang Xuan Mao Jianbo Jia Hongyu Zhou 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2024年第1期97-107,共11页
Increasing risks of incidental and occupational exposures to two-dimensional transition metal dichalcogenides(2D TMDCs)due to their broad application in various areas raised their public health concerns.While the comp... Increasing risks of incidental and occupational exposures to two-dimensional transition metal dichalcogenides(2D TMDCs)due to their broad application in various areas raised their public health concerns.While the composition-dependent cytotoxicity of 2D TMDCs has been well-recognized,how the outer chalcogenide atoms and inner transition metal atoms differentially contribute to their perturbation on cell homeostasis at non-lethal doses remains to be identified.In the present work,we compared the autophagy induction and related mechanisms in response to WS_(2),NbS_(2),WSe_(2)and Nb Se_(2)nanosheets exposures in MH-S murine alveolar macrophages.All these 2D TMDCs had comparable physicochemical properties,overall cytotoxicity and capability in triggering autophagy in MH-S cells,but showed outer chalcogen-dependent subcellular localization and activation of autophagy pathways.Specifically,WS_(2)and NbS_(2)nanosheets adhered on the cell surface and internalized in the lysosomes,and triggered m TOR-dependent activation of autophagy.Meanwhile,WSe_(2)and Nb Se_(2)nanosheets had extensive distribution in cytoplasm of MH-S cells and induced autophagy in an m TOR-independent manner.Furthermore,the 2D TMDCs-induced perturbation on autophagy aggravated the cytotoxicity of respirable benzo[a]pyrene.These findings provide a deeper insight into the potential health risk of environmental 2D TMDCs from the perspective of homeostasis perturbation. 展开更多
关键词 Chalcogen group autophagy pathway Cell function Endosomal escape Inhalation toxicity
原文传递
Analysis of feasibility of application of Beishu point acupressure therapy in treating gastroesophageal reflux disease via AMPK / ULK1 mediated autophagy pathway based on "adjusting central axis via pivot" theory
2
作者 Yu Zhang Mei-Zhen Huang +4 位作者 Chun-Qu Pan Hong-Wu Liu Yong-Xiang Lu Jin-Jing Tan Sheng Xie 《Journal of Hainan Medical University》 2021年第21期60-64,共5页
Gastroesophageal reflux disease(GERD)is a digestive system disease characterized by uncomfortable symptoms caused by reflux of gastric contents.It has increased sharply with the development of my country’s society an... Gastroesophageal reflux disease(GERD)is a digestive system disease characterized by uncomfortable symptoms caused by reflux of gastric contents.It has increased sharply with the development of my country’s society and economy.If there is no reasonable and effective Prevention and treatment measures will inevitably increase the financial burden of patients,and also pose a major threat to the quality of life and health of patients.Cell signal transduction mediated by various receptors participates in the regulation mechanism of the body's various levels of biological functions.By inhibiting or activating its functions,the purpose of curing diseases can be achieved,and cell signal transduction has been used in traditional Chinese medicine.Studying.The theory of"adjusting the central axis"was explored by Professor Xie Sheng through decades of clinical experience.It has been proven in practice to treat GERD.It starts from the model of TCM viscera and expounds that the pathogenesis of GERD involves multiple viscera.Multi-system and multi-factor,explain the correlation of the disease with a variety of zang-fu syndromes,and use this as a basis to guide the clinical use of hidden prescriptions.The back-shu pointer therapy can prevent GERD by correcting the unbalanced state of the viscera and qi machine,and promoting the junction of the two channels of Ren and Du.Based on the theory of"adjusting the hub by the pivot",this article expounds the pathogenesis of GERD from the perspective of traditional Chinese medicine.By consulting the literature and combining with the previous research,it proposes to analyze the methods and methods of Backshu pointer therapy to prevent and treat GERD from the AMPK/ULK1 mediated autophagy pathway. 展开更多
关键词 Adjusting the central axis via pivot Gastroesophageal reflux disease AMPK/ULK1 autophagy pathway Backshu point acupressure therapy
暂未订购
Moringia oleifera Lam.seeds isothiocyanate against skin photoaging by regulating p38 MAPK-dependent autophagy signalling pathway
3
作者 Min Yang Lingyan Su +7 位作者 Liang Tao Lingfei Li Yijin Wang Zilin Wang Cunchao Zhao Qianqian Ouyang Jun Sheng Yang Tian 《Food Science and Human Wellness》 2025年第5期1886-1901,共16页
People living long-term in areas with UV will cause premature photoaging.An abnormal reduction in autophagy is a key feature of photoaging,and p38 MAPK has been regarded as a key regulator of autophagy.Isothiocyanate ... People living long-term in areas with UV will cause premature photoaging.An abnormal reduction in autophagy is a key feature of photoaging,and p38 MAPK has been regarded as a key regulator of autophagy.Isothiocyanate is one of the main active components of Moringa oleifera Lam.seeds.Studies have reported that M.oleifera Lam.seeds iso thiocyanate(MITC)has anticancer,anti-inflammatory,cardio metabolic repair,nervous system protection,blood lipid regulation and diabetes prevention properties.However,the molecular mechanisms of MITC with protective effects against skin photoaging have not been studied thus far.In this study,we aimed to evaluate the antiphotoaging activity of MITC and to investigate the effect of p38 MAPK-dependent autophagy in vivo and in vitro models of photoaging.In this research we found that MITC can reverse the intracellular reactive oxygen species(ROS)content and inhibit the activation of p38 MAPK to improve the autophagy level,reduce the expression of matrix metalloproteinases(MMPs),and finally protect against photoaging by UV.Our results will uncover the molecular mechanisms of MITC that play a role in the protective effects against skin photoaging,provide helpful information for developing MITC as an anti-photoaging plant material and improve the utilization of M.oleifera Lam.seeds. 展开更多
关键词 Moringa oleifera Lam.seeds Ant-photoaging Reactive oxygen species Matrix metalloproteinases p38 MAPK-dependent autophagy pathways
暂未订购
Dihydrotanshinone I Induces Autophagic Cell Death in Ovarian Cancer by Disrupting the SORT1-Mediated Autophagy–Lysosome Pathway
4
作者 Chengtao Sun Shengqian Deng +7 位作者 Bing Han Xiaoxiao Han Yanan Yu Man Li Jiayi Lou Chengping Wen Jiong Wu Guoyin Kai 《Engineering》 2025年第8期280-296,共17页
Ovarian cancer(OC),a common malignancy of the female reproductive system,has the highest mortality rate among gynecological cancers.A distinguishing feature of OC cells(OCCs)is their reduced autophagic flux compared w... Ovarian cancer(OC),a common malignancy of the female reproductive system,has the highest mortality rate among gynecological cancers.A distinguishing feature of OC cells(OCCs)is their reduced autophagic flux compared with normal cells.This phenomenon indicates that excessive autophagy activation or impaired autophagosome–lysosome fusion may lead to OCC death.This study investigated the anti-OC effects of dihydrotanshinone I(DHT),a tanshinone compound from Salvia miltiorrhiza.Proteomic analysis suggested that DHT suppressed OC growth via the autophagy–lysosome pathway,with sortilin 1(SORT1)identified as a critical target.In vitro,DHT promoted autophagosome formation mediated by microtubule-associated protein 1 light chain 3-II(LC3-II),while inhibiting autophagosome–lysosome fusion.The results of an orthotopic OC model corroborated these findings,showing that DHT induced autophagic cell death(ACD)and suppressed SORT1 expression in tumors.Further RNA interference experiments confirmed that SORT1 depletion caused autophagosomes to accumulate in OCCs.Notably,we found that SORT1 interacted with autophagy-related gene(ATG)-encoded proteins ATG5 and ATG16L1,and that depleting SORT1 increased the levels of these proteins.Co-immunoprecipitation,ubiquitination,and cellular thermal shift assay analyses revealed that DHT directly targeted and promoted ubiquitin-dependent degradation of SORT1.By degrading SORT1,ATG5 and ATG16L1 were released,which enhanced autophagosome formation and disrupted the autophagic flux.These findings identified DHT as a novel autophagosome inducer that induced ACD by targeting SORT1,making it a promising therapeutic candidate for OC. 展开更多
关键词 Dihydrotanshinone I Ovarian cancer Autophagic cell death Sortilin 1 autophagy autophagy–lysosome pathway
暂未订购
Dynamic Imaging of Autophagy-lysosomal Pathway and Autophagy Function Following Pulmonary Hypoxia/Reoxygenation In Vitro 被引量:1
5
作者 刘天舒 蔡益婷 +3 位作者 毛志福 黄杰 范涛 耿庆 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2015年第2期302-308,共7页
Alterations of the autophagy-lysosomal pathway(ALP) and autophagy have been involved in lung ischemia-reperfusion(I/R) injury. However, dynamic imaging of ALP function under lung I/R injury particularly is not ful... Alterations of the autophagy-lysosomal pathway(ALP) and autophagy have been involved in lung ischemia-reperfusion(I/R) injury. However, dynamic imaging of ALP function under lung I/R injury particularly is not fully understood. Here we depicted the live-cell fluorescence imaging of autophagosome to monitor ALP activation and autophagy function. The p As Red2-N1-LC3 vectors were transfected into CRL-2192 NR8383(an alveolar macrophage cell line) and CCL149(an alveolar epithelial cell line) successfully. 0-h, 2-h, 4-h, and 6-h hypoxia/0-h, 2-h, 4-h, and 6-h reoxygenation were then induced with an ALP inhibitor(3-MA) or activator(rapamycin) in the culture of transfected cells separately. ALP activation was conformed by up-regulating AMPK and beclin1 expression. Apoptosis was not obvious in 2-h hypoxia/2-h reoxygenation. p As Red2-N1-LC3 CCL149 and p As Red2-N1-LC3 NR8383 cells revealed gradually enhanced As Red2 from 2-h to 6-h hypoxia/reoxygenation. As Red2 varied sensitively to 3-MA and rapamycin interventions during 2-h hypoxia/reoxygenation. Our data provides a simple method of autophagosome imaging to monitor ALP activation and autophagy function in lung I/R injury. 展开更多
关键词 autophagy rapamycin alveolar understood Apoptosis AMPK pathway regulating separately monitor
暂未订购
Quercetin modulates ovarian autophagy-related molecules and stereological parameters in a rat model of PCOS
6
作者 Asma Neisy Farhad Koohpeyma +2 位作者 Majid Jafari Khorchani Fatemeh Karimi Fatemeh Zal 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2023年第1期9-16,共8页
Objective:To examine the effect of quercetin on stereological parameters and autophagy-related genes in ovaries of polycystic ovary syndrome(PCOS)rats.Methods:Fifty female Sprague-Dawley rats were randomly divided int... Objective:To examine the effect of quercetin on stereological parameters and autophagy-related genes in ovaries of polycystic ovary syndrome(PCOS)rats.Methods:Fifty female Sprague-Dawley rats were randomly divided into five groups:the control group,the ethanol group,the quercetin group(15 mg/kg/day),the PCOS group,as well as the PCOS+quercetin group.After the induction of PCOS,quercetin was administered orally for 30 days.Histological,stereological and real-time PCR analyses were carried out to evaluate the effect of quercetin on PCOS rats.Results:Stereological analysis revealed that quercetin significantly increased the number of ovarian follicles and the volume of corpus luteum and induced a significant decrease in atretic follicles in comparison to the PCOS group.In addition,quercetin markedly increased mTOR gene expression while decreasing Beclin-1 and LC3 gene expression.Conclusions:Quercetin strongly modulates the expression of ovarian autophagy-related genes and stereological parameters in PCOS rats.Therefore,it can be considered as an ameliorative component for ovarian follicular impairments. 展开更多
关键词 QUERCETIN autophagy pathway mTOR BECLIN-1 LC3 Ovarian follicles Polycystic ovary syndrome
暂未订购
GDF11 restores the impaired function of EPCs-MA by promoting autophagy:GDF11 ameliorates endothelial progenitor cell aging by promoting autophagy
7
作者 Donghua Liu Yang Zhang +10 位作者 Xin Liu Qihe Huang Xiaofang Zhang Rui Yang Yue Zhao Penghui Li Jiayi He Kexiao Zhang Zhenwei Pan Huiwen Liu Baofeng Yang 《Frigid Zone Medicine》 2024年第4期212-223,共12页
Objective:Our study aimed to assess the effects of Growth and differentiation factor 11(GDF11)on the function of endothelial progenitor cells in middle-age individuals(EPCs-MA)isolated from mouse bone marrow and to ex... Objective:Our study aimed to assess the effects of Growth and differentiation factor 11(GDF11)on the function of endothelial progenitor cells in middle-age individuals(EPCs-MA)isolated from mouse bone marrow and to explore the mechanistic relationship between GDF11 and age-related ALP impairment.Methods:Bone marrow-derived EPCs were isolated,culture and GDF11 treatment.In vivo,the mice model of myocardial ischemia(MI)was induced by permanent ligation of the left anterior descending coronary artery(LAD)and mice were randomly divided into MI group and EPCs transplantation group(EPCs-Y,EPCs-MA,EPCs-MA/GDF11).The positive effect of GDF11 treatment of EPCs-MA on MI was verified by echocardiography and the average ratio of fibrotic area to left ventricular(LV)area.In vitro,the effect of GDF11 on ameliorating EPCs aging by promoting autophagy was confirmed by transwell assay,immunofluorescence staining,characterization of EPCs ultrastructure through transmission electron microscope(TEM),lysosome imaging and Western blot.Result:Our findings demonstrate that GDF11 enhances the migration capacity of EPCs-MA and improves recovery of impaired cardiac function after myocardial infarction(MI)in mice,with EPCs isolated from young mice(EPCs-Y)as controls.Moreover,GDF11 restored functional phenotypes of EPCs-MA to levels akin to EPCs-Y,promoting the expression of CD31,endogenous NO synthase,and the restoration of von Willebrand factor(vWF)and CDH5 expression patterns,as well as the formation of Weibel-Palade bodies-key organelles for storage and secretion in endothelial cells and EPCs.Furthermore,GDF11 significantly enhanced the autophagic clearance capability of EPCs-MA by promoting ALP.Conclusions:Our results suggest that GDF11 ameliorates cardiac function impairment by restoring the activities of EPCs from aging mice through enhanced ALP.These findings suggest that GDF11 may hold therapeutic potential for improving aging-related conditions associated with declined autophagy. 展开更多
关键词 GDF11 endothelial progenitor cells autophagy lysosome pathway AGING
原文传递
Research Advances in Mitophagy in Hepatic Ischemia-Reperfusion Injury
8
作者 Erhua Yang Zhimeng Yang +1 位作者 Dejiang Zhao Xuefeng Wang 《Journal of Clinical and Nursing Research》 2025年第7期53-66,共14页
Hepatic ischemia-reperfusion injury(IRI)is a prevalent pathophysiological phenomenon encountered during liver surgeries and transplantation,leading to hepatocyte damage and liver dysfunction,which significantly affect... Hepatic ischemia-reperfusion injury(IRI)is a prevalent pathophysiological phenomenon encountered during liver surgeries and transplantation,leading to hepatocyte damage and liver dysfunction,which significantly affects patient prognosis.In recent years,the role of mitophagy in hepatic IRI has garnered considerable attention.Mitochondria,known as the“powerhouses”of the cell,are crucial for maintaining normal cellular physiological functions.During the ischemia-reperfusion process,mitochondria are susceptible to damage,generating excessive harmful substances,such as reactive oxygen species(ROS),which further exacerbate cellular injury.Mitophagy is a selective cellular self-protection mechanism that maintains the quality and quantity balance of mitochondria within cells by clearing damaged or dysfunctional mitochondria.In the context of liver IRI,the activation of mitophagy is of significant importance.On one hand,mitophagy can rapidly remove damaged mitochondria,thereby reducing the release of harmful products and alleviating oxidative stress and cellular damage.Research has indicated that under ischemia-reperfusion conditions,mitophagy-related pathways are activated,promoting the clearance of damaged mitochondria.On the other hand,mitophagy also regulates cellular energy metabolism,providing essential energy support for cells under stress.With the continuous advancement of research,the understanding of the role of mitophagy in hepatic IRI has become increasingly clear.Numerous studies are dedicated to exploring the specific molecular mechanisms of mitophagy and its regulation,aiming to develop new therapeutic strategies to alleviate hepatic IRI.Although studies have demonstrated that mitophagy has a protective effect in hepatic ischemia-reperfusion injury,many issues still require further investigation.First,it is essential to further elucidate the mechanisms underlying the role of mitophagy in ischemia-reperfusion.Additionally,understanding how to mitigate liver ischemia-reperfusion injury through the modulation of mitophagy represents a key focus for future research.Future studies may encompass drug development,gene therapy,and cell therapy approaches aimed at improving the prognosis of patients affected by liver ischemia-reperfusion. 展开更多
关键词 ISCHEMIA-REPERFUSION MITOPHAGY Oxidative stress autophagy pathway PHOSPHORYLATION
暂未订购
上一页 1 下一页 到第
使用帮助 返回顶部