Cell Stress & Chaperones最新文献

{"title":"Mild heat shock at 40 °C increases levels of autophagy: Role of Nrf2","authors":"Mélanie Grondin,&nbsp;Claire Chabrol,&nbsp;Diana A. Averill-Bates","doi":"10.1016/j.cstres.2024.06.001","DOIUrl":"10.1016/j.cstres.2024.06.001","url":null,"abstract":"<div><p>The exposure to low doses of stress induces an adaptive survival response that involves the upregulation of cellular defense systems such as heat shock proteins (Hsps), anti-apoptosis proteins, and antioxidants. Exposure of cells to elevated, non-lethal temperatures (39–41 °C) is an adaptive survival response known as thermotolerance, which protects cells against subsequent lethal stress such as heat shock (&gt;41.5 °C). However, the initiating factors in this adaptive survival response are not understood. This study aims to determine whether autophagy can be activated by heat shock at 40 °C and if this response is mediated by the transcription factor Nrf2. Thermotolerant cells, which were developed during 3 h at 40 °C, were resistant to caspase activation at 42 °C. Autophagy was activated when cells were heated from 5 to 60 min at 40 °C. Levels of acidic vesicular organelles (AVOs) and autophagy proteins Beclin-1, LC3-II/LC3-I, Atg7, Atg5, Atg12–Atg5, and p62 were increased. When Nrf2 was overexpressed or depleted in cells, levels of AVOs and autophagy proteins were higher in unstressed cells, compared to the wild type. Stress induced by mild heat shock at 40 °C further increased levels of most autophagy proteins in cells with overexpression or depletion of Nrf2. Colocalization of p62 and Keap1 occurred. When Nrf2 levels are low, activation of autophagy would likely compensate as a defense mechanism to protect cells against stress. An improved understanding of autophagy in the context of cellular responses to physiological heat shock could be useful for cancer treatment by hyperthermia and the protective role of adaptive responses against environmental stresses.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 4","pages":"Pages 567-588"},"PeriodicalIF":3.3,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000786/pdfft?md5=f2b8911030277b82acebd30bccee89e5&pid=1-s2.0-S1355814524000786-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141330405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An update on the status of HSP90 inhibitors in cancer clinical trials","authors":"Shraddha Rastogi ,&nbsp;Abhinav Joshi ,&nbsp;Nahoko Sato ,&nbsp;Sunmin Lee ,&nbsp;Min-Jung Lee ,&nbsp;Jane B. Trepel ,&nbsp;Len Neckers","doi":"10.1016/j.cstres.2024.05.005","DOIUrl":"10.1016/j.cstres.2024.05.005","url":null,"abstract":"<div><p>The evolutionary conserved molecular chaperone heat shock protein 90 (HSP90) plays an indispensable role in tumorigenesis by stabilizing client oncoproteins. Although the functionality of HSP90 is tightly regulated, cancer cells exhibit a unique dependence on this chaperone, leading to its overexpression, which has been associated with poor prognosis in certain malignancies. While various strategies targeting heat shock proteins (HSPs) involved in carcinogenesis have been explored, only inhibition of HSP90 has consistently and effectively resulted in proteasomal degradation of its client proteins. To date, a total of 22 HSP90 inhibitors (HSP90i) have been tested in 186 cancer clinical trials, as reported by clinicaltrials.gov. Among these trials, 60 % have been completed, 10 % are currently active, and 30 % have been suspended, terminated, or withdrawn. HSP90 inhibitors (HSP90i) have been used as single agents or in combination with other drugs for the treatment of various cancer types in clinical trials. Notably, improved clinical outcomes have been observed when HSP90i are used in combination therapies, as they exhibit a synergistic antitumor effect. However, as single agents, HSP90i have shown limited clinical activity due to drug-related toxicity or therapy resistance. Recently, active trials conducted in Japan evaluating TAS-116 (pimitespib) have demonstrated promising results with low toxicity as monotherapy and in combination with the immune checkpoint inhibitor nivolumab. Exploratory biomarker analyses performed in various trials have demonstrated target engagement that suggests the potential for identifying patient populations that may respond favorably to the therapy. In this review, we discuss the advances made in the past 5 years regarding HSP90i and their implications in anticancer therapeutics. Our focus lies in evaluating drug efficacy, prognosis forecast, pharmacodynamic biomarkers, and clinical outcomes reported in published trials. Through this comprehensive review, we aim to shed light on the progress and potential of HSP90i as promising therapeutic agents in cancer treatment.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 4","pages":"Pages 519-539"},"PeriodicalIF":3.3,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000774/pdfft?md5=db192ffc0850103c8e0e50259ad55281&pid=1-s2.0-S1355814524000774-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141327280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial Board Members/Copyright","authors":"","doi":"10.1016/S1355-8145(24)00104-4","DOIUrl":"https://doi.org/10.1016/S1355-8145(24)00104-4","url":null,"abstract":"","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Page i"},"PeriodicalIF":3.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524001044/pdfft?md5=b068a17900e10325cf65c9a3c10b176e&pid=1-s2.0-S1355814524001044-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141325236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover and caption","authors":"","doi":"10.1016/S1355-8145(24)00103-2","DOIUrl":"https://doi.org/10.1016/S1355-8145(24)00103-2","url":null,"abstract":"","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Page OFC"},"PeriodicalIF":3.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524001032/pdfft?md5=6de4fd41fce078676ab53363f4ba2cba&pid=1-s2.0-S1355814524001032-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141325235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanisms involved in the regulation of mitochondrial quality control by PGAM5 in heart failure","authors":"Yanli Wang ,&nbsp;Tiantian Ren ,&nbsp;Cuizhi Li ,&nbsp;Qiaomin Wu,&nbsp;Jinfeng Liu,&nbsp;Xuanke Guan,&nbsp;Xing Chang,&nbsp;Zhiming Liu,&nbsp;Ruxiu Liu","doi":"10.1016/j.cstres.2024.05.004","DOIUrl":"10.1016/j.cstres.2024.05.004","url":null,"abstract":"<div><p>Heart failure (HF) refers to a group of clinical syndromes in which various heart diseases lead to the inability of cardiac output to meet the metabolic needs of the body’s tissues. Cardiac metabolism requires enormous amounts of energy; thus, impaired myocardial energy metabolism is considered a key factor in the occurrence and development of HF. Mitochondria serve as the primary energy source for cardiomyocytes, and their regular functionality underpins healthy cardiac function. The mitochondrial quality control system is a crucial mechanism for regulating the functionality of cardiomyocytes, and any abnormality in this system can potentially impact the morphology and structure of mitochondria, as well as the energy metabolism of cardiomyocytes. Phosphoglycerate mutase 5 (PGAM5), a multifunctional protein, plays a key role in the regulation of mitochondrial quality control through multiple pathways. Therefore, abnormal PGAM5 function is closely related to mitochondrial damage. This article reviews the mechanism of PGAM5′s involvement in the regulation of the mitochondrial quality control system in the occurrence and development of HF, thereby providing a theoretical basis for future in-depth research.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Pages 510-518"},"PeriodicalIF":3.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000762/pdfft?md5=aadafd8230818ef5065e9efa8c5b8594&pid=1-s2.0-S1355814524000762-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141183946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mitochondrial Chaperone Code: Just warming up","authors":"R. Felipe Perez ,&nbsp;Gianna Mochi ,&nbsp;Ariba Khan ,&nbsp;Mark Woodford","doi":"10.1016/j.cstres.2024.05.002","DOIUrl":"10.1016/j.cstres.2024.05.002","url":null,"abstract":"<div><p>More than 99% of the mitochondrial proteome is encoded by the nucleus and requires refolding following import. Therefore, mitochondrial proteins require the coordinated action of molecular chaperones for their folding and activation. Several heat shock protein (Hsp) molecular chaperones, including members of the Hsp27, Hsp40/70, and Hsp90 families, as well as the chaperonin complex Hsp60/10 have an established role in mitochondrial protein import and folding. The “Chaperone Code” describes the regulation of chaperone activity by dynamic post-translational modifications; however, little is known about the post-translational regulation of mitochondrial chaperones. Dissecting the regulation of chaperone function is essential for understanding their differential regulation in pathogenic conditions and the potential development of efficacious therapeutic strategies. Here, we summarize the recent literature on post-translational regulation of mitochondrial chaperones, the consequences for mitochondrial function, and potential implications for disease.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Pages 483-496"},"PeriodicalIF":3.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000749/pdfft?md5=cabf429f9e7da88a1b10fe4fb854cd6b&pid=1-s2.0-S1355814524000749-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141024712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bag1 protein loss sensitizes mouse embryonic fibroblasts to glutathione depletion","authors":"Atsushi Inose-Maruyama ,&nbsp;Hayato Irokawa ,&nbsp;Kouki Takeda ,&nbsp;Keiko Taguchi ,&nbsp;Masanobu Morita ,&nbsp;Masayuki Yamamoto ,&nbsp;Masato Sasaki ,&nbsp;Shusuke Kuge","doi":"10.1016/j.cstres.2024.05.003","DOIUrl":"10.1016/j.cstres.2024.05.003","url":null,"abstract":"<div><p>Bcl2-associated athanogene-1 protein (Bag1) acts as a co-chaperone of heat shock protein 70 and heat shock cognate 70 and regulates multiple cellular processes, including cell proliferation, apoptosis, environmental stress response, and drug resistance. Since <em>Bag1</em> knockout mice exhibited fetal lethality, the <em>in vivo</em> function of Bag1 remains unclear. In this study, we established a mouse line expressing <em>Bag1</em> gene missing exon 5, which corresponds to an encoding region for the interface of heat shock protein 70/heat shock cognate 70. Despite mice carrying homoalleles of the Bag1 mutant (<em>Bag1</em>^Δex5) expressing undetectable levels of Bag1, <em>Bag1</em>^Δex5 homozygous mice developed without abnormalities. Bag1^Δex5 protein was found to be highly unstable in cells and <em>in vitro</em>. We found that the growth of mouse embryonic fibroblasts derived from <em>Bag1</em>^Δex5-homo mice was attenuated by doxorubicin and a glutathione (GSH) synthesis inhibitor, buthionine sulfoximine. In response to buthionine sulfoximine, <em>Bag1</em>^Δex5-mouse embryonic fibroblasts exhibited a higher dropping rate of GSH relative to the oxidized glutathione level. In addition, Bag1 might mitigate cellular hydrogen peroxide levels. Taken together, our results demonstrate that the loss of Bag1 did not affect mouse development and that Bag1 is involved in intracellular GSH homeostasis, namely redox homeostasis.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Pages 497-509"},"PeriodicalIF":3.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000750/pdfft?md5=d9ac7bd29276d3d73e5c6e8432b99683&pid=1-s2.0-S1355814524000750-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141041008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Eccentric muscle-damaging exercise in the heat lowers cellular stress prior to and immediately following future exertional heat exposure","authors":"Ryan A. Dunn ,&nbsp;Hui-Ying Luk ,&nbsp;Casey R. Appell ,&nbsp;Nigel C. Jiwan ,&nbsp;Marcos S. Keefe ,&nbsp;Jan-Joseph S. Rolloque ,&nbsp;Yasuki Sekiguchi","doi":"10.1016/j.cstres.2024.05.001","DOIUrl":"10.1016/j.cstres.2024.05.001","url":null,"abstract":"<div><p>Muscle-damaging exercise (e.g., downhill running [DHR]) or heat exposure bouts potentially reduce physiological and/or cellular stress during future exertional heat exposure; however, the true extent of their combined preconditioning effects is unknown. Therefore, this study investigated the effect of muscle-damaging exercise in the heat on reducing physiological and cellular stress during future exertional heat exposure. Ten healthy males (mean ± Standard Definition; age, 23 ± 3 years; body mass, 78.7 ± 11.5 kg; height, 176.9 ± 4.7 cm) completed this study. Participants were randomly assigned into two preconditioning groups: (a) DHR in the heat (ambient temperature [T_amb], 35 °C; relative humidity [RH], 40%) and (b) DHR in thermoneutral (T_amb, 20 °C; RH, 20%). Seven days following DHR, participants performed a 45-min flat run in the heat (Flat_HEAT [T_amb, 35 °C; RH, 40%]). During exercise, heart rate and rectal temperature (T_rec) were recorded at baseline and every 5-min. Peripheral blood mononuclear cells were isolated to assess heat shock protein 72 (Hsp72) concentration between conditions at baseline, immediately post-DHR, and immediately pre-Flat_HEAT and post-Flat_HEAT. Mean T_rec during Flat_HEAT between hot (38.23 ± 0.38 °C) and thermoneutral DHR (38.26 ± 0.38 °C) was not significantly different (<em>P</em> = 0.68), with no mean heart rate differences during Flat_HEAT between hot (172 ± 15 beats min⁻¹) and thermoneutral conditions (174 ± 8 beats min⁻¹; <em>P</em> = 0.58). Hsp72 concentration change from baseline to immediately pre-Flat_HEAT was significantly lower in hot (−51.4%) compared to thermoneutral (+24.2%; <em>P</em> = 0.025) DHR, with Hsp72 change from baseline to immediately post-Flat_HEAT also lower in hot (−52.6%) compared to thermoneutral conditions (+26.3%; <em>P</em> = 0.047). A bout of muscle-damaging exercise in the heat reduces cellular stress levels prior to and immediately following future exertional heat exposure.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Pages 472-482"},"PeriodicalIF":3.8,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000737/pdfft?md5=7527cb8830b42a0ea4d640a6302a437a&pid=1-s2.0-S1355814524000737-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140910770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat shock protein 72 supports extracellular matrix production in metastatic mammary tumors","authors":"Benjamin J. Lang ,&nbsp;Kristina M. Holton ,&nbsp;Martin E. Guerrero-Gimenez ,&nbsp;Yuka Okusha ,&nbsp;Patrick T. Magahis ,&nbsp;Amy Shi ,&nbsp;Mary Neguse ,&nbsp;Shreya Venkatesh ,&nbsp;Anh M. Nhu ,&nbsp;Jason E. Gestwicki ,&nbsp;Stuart K. Calderwood","doi":"10.1016/j.cstres.2024.04.006","DOIUrl":"10.1016/j.cstres.2024.04.006","url":null,"abstract":"<div><p>This study identified tumorigenic processes most dependent on murine heat shock protein 72 (HSP72) in the mouse mammary tumor virus-PyMT mammary tumor model, which give rise to spontaneous mammary tumors that exhibit HSP72-dependent metastasis to the lung. RNA-seq expression profiling of <em>Hspa1a/Hspa1b (Hsp72)</em> WT and <em>Hsp72</em>^−/− primary mammary tumors discovered significantly lower expression of genes encoding components of the extracellular matrix (ECM) in <em>Hsp72</em> knockout mammary tumors compared to WT controls. <em>In vitro</em> studies found that genetic or chemical inhibition of HSP72 activity in cultured collagen-expressing human or murine cells also reduces mRNA and protein levels of COL1A1 and several other ECM-encoding genes. In search of a possible mechanistic basis for this relationship, we found HSP72 to support the activation of the tumor growth factor-β–suppressor of mothers against decapentaplegic-3 signaling pathway and evidence of suppressor of mothers against decapentaplegic-3 and HSP72 coprecipitation, suggesting potential complex formation. Human <em>COL1A1</em> mRNA expression was found to have prognostic value for HER2+ breast tumors over other breast cancer subtypes, suggesting a possible human disease context where targeting HSP72 may have a therapeutic rationale. Analysis of human HER2+ breast tumor gene expression data using a gene set comprising ECM-related gene and protein folding-related gene as an input to the statistical learning algorithm, <em>Galgo</em>, found a subset of these genes that can collectively stratify patients by relapse-free survival, further suggesting a potential interplay between the ECM and protein-folding genes may contribute to tumor progression.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Pages 456-471"},"PeriodicalIF":3.8,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000725/pdfft?md5=d45a8b83fdfc70c0e9683647429bc4ef&pid=1-s2.0-S1355814524000725-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140862272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Involvement of oxidative stress-AMPK-Cx43-NLRP3 pathway in extracellular matrix remodeling of gastric smooth muscle cells in rats with diabetic gastroparesis","authors":"Baihui Song ,&nbsp;Gaoyuan Zhang ,&nbsp;Yitegele Bao ,&nbsp;Mohan Zhang","doi":"10.1016/j.cstres.2024.04.005","DOIUrl":"10.1016/j.cstres.2024.04.005","url":null,"abstract":"<div><p>This study aimed to investigate the changes in oxidative stress, adenosine monophosphate-activated protein kinase (AMPK), connexin43 (Cx43), nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) expression, and extracellular matrix (ECM) in the gastric smooth muscle tissues of rats with diabetic gastroparesis (DGP) and high glucose-cultured gastric smooth muscle cells, determine the existence of oxidative stress-AMPK-Cx43-NLRP3 pathway under high glucose condition, and the involvement of this pathway in ECM remodeling in DGP rats. The results showed that with increasing duration of diabetes, oxidation stress levels gradually increased, the AMPK activity decreased first and then increased, NLRP3, CX43 expression, and membrane/cytoplasm ratio of Cx43 expression were increased in the gastric smooth muscle tissues of diabetic rats. Changes in ECM of gastric smooth muscle cells were observed in DGP rats. The DGP group showed higher collagen type I content, increased expression of Caspase-1, transforming growth factor-beta 3 (TGF-β₃), and matrix metalloproteinase-2 (MMP-2), decreased tissue inhibitor of metalloproteinase-1 (TIMP-1) expression, and higher interleukin-1 beta content when compared with the control group. For gastric smooth muscle cells cultured under higher glucose, the MMP-2 and TGF-β3 expression was decreased, TGF-β1 and TIMP-1 expression was increased, the interleukin-1 beta content was decreased in cells after inhibition of NLRP3 expression; the NLRP3 and Caspase-1 expression was decreased, and adenosine triphosphate content was lower after inhibition of Cx43; the expression of NLRP3, Caspase-1, P2X7, and the membrane/cytoplasm ratio of CX43 expression was decreased in cells after inhibition of AMPK and oxidative stress, the phospho-AMPK expression was also decreased after suppressing oxidative stress. Our findings suggest that high glucose induced the activation of the AMPK-Cx43-NLRP3 pathway through oxidative stress, and this pathway was involved in the ECM remodeling of gastric smooth muscles in DGP rats by regulating the biological functions of TGF-β3, TGF-β1, MMP-2, and TIMP-1.</p></div>","PeriodicalId":9684,"journal":{"name":"Cell Stress & Chaperones","volume":"29 3","pages":"Pages 440-455"},"PeriodicalIF":3.8,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1355814524000671/pdfft?md5=3aef01b0be0970ec7d167ee34824f45a&pid=1-s2.0-S1355814524000671-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140792351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}