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Liu XQ, Shi MZ, Bai YT, Su XL, Liu YM, Wu JC, Chen LR. Hypoxia and ferroptosis. Cell Signal 2024; 122:111328. [PMID: 39094672 DOI: 10.1016/j.cellsig.2024.111328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 07/24/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
Ferroptosis is a novel, iron-dependent cell death characterized by the excessive accumulation of ferroptosis lipid peroxides ultimately leading to oxidative damage to the cell membrane. Iron, lipid, amino acid metabolism, and other signaling pathways all control ferroptosis. Numerous bodily tissues experience hypoxia under normal and pathological circumstances. Tissue cells can adjust to these changes by activating the hypoxia-inducible factor (HIF) signaling pathway and other mechanisms in response to the hypoxic environment. In recent years, there has been increasing evidence that hypoxia and ferroptosis are closely linked, and that hypoxia can regulate ferroptosis in specific cells and conditions through different pathways. In this paper, we review the possible positive and negative regulatory mechanisms of ferroptosis by hypoxia-inducible factors, as well as ferroptosis-associated ischemic diseases, with the intention of delivering novel therapeutic avenues for the defense and management of hypoxic illnesses linked to ferroptosis.
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Affiliation(s)
- Xiao-Qian Liu
- Qinghai University, Xining 810001, PR China; Qinghai Provincial People's Hospital, Xining 810001, PR China
| | - Meng-Zhen Shi
- Qinghai University, Xining 810001, PR China; Qinghai Provincial People's Hospital, Xining 810001, PR China
| | - Yu-Ting Bai
- Qinghai Provincial People's Hospital, Xining 810001, PR China.
| | - Xiao-Ling Su
- Qinghai Provincial People's Hospital, Xining 810001, PR China
| | - Yan-Min Liu
- Qinghai Provincial People's Hospital, Xining 810001, PR China
| | - Jin-Chun Wu
- Qinghai Provincial People's Hospital, Xining 810001, PR China
| | - Li-Rong Chen
- Qinghai University, Xining 810001, PR China; Qinghai Provincial People's Hospital, Xining 810001, PR China
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Yang ZJ, Zhang WF, Jin QQ, Wu ZR, Du YY, Shi H, Qu ZS, Han XJ, Jiang LP. Lactate Contributes to Remote Ischemic Preconditioning-Mediated Protection Against Myocardial Ischemia Reperfusion Injury by Facilitating Autophagy via the AMP-Activated Protein Kinase-Mammalian Target of Rapamycin-Transcription Factor EB-Connexin 43 Axis. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:1857-1878. [PMID: 39069170 DOI: 10.1016/j.ajpath.2024.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/06/2024] [Accepted: 07/09/2024] [Indexed: 07/30/2024]
Abstract
Remote ischemic preconditioning (RIPC) exerts a protective role on myocardial ischemia/reperfusion (I/R) injury by the release of various humoral factors. Lactate is a common metabolite in ischemic tissues. Nevertheless, little is known about the role lactate plays in myocardial I/R injury and its underlying mechanism. This investigation revealed that RIPC elevated the level of lactate in blood and myocardium. Furthermore, AZD3965, a selective monocarboxylate transporter 1 inhibitor, and 2-deoxy-d-glucose, a glycolysis inhibitor, mitigated the effects of RIPC-induced elevated lactate in the myocardium and prevented RIPC against myocardial I/R injury. In an in vitro hypoxia/reoxygenation model, lactate markedly mitigated hypoxia/reoxygenation-induced cell damage in H9c2 cells. Further studies suggested that lactate contributed to RIPC, rescuing I/R-induced autophagy deficiency by promoting transcription factor EB (TFEB) translocation to the nucleus through activating the AMP-activated protein kinase (AMPK)-mammalian target of rapamycin (mTOR) pathway without influencing the phosphatidylinositol 3-kinase-Akt pathway, thus reducing cardiomyocyte damage. Interestingly, lactate up-regulated the mRNA and protein expression of connexin 43 (CX43) by facilitating the binding of TFEB to CX43 promoter in the myocardium. Functionally, silencing of TFEB attenuated the protective effect of lactate on cell damage, which was reversed by overexpression of CX43. Further mechanistic studies suggested that lactate facilitated CX43-regulated autophagy via the AMPK-mTOR-TFEB signaling pathway. Collectively, this research demonstrates that RIPC protects against myocardial I/R injury through lactate-mediated myocardial autophagy via the AMPK-mTOR-TFEB-CX43 axis.
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Affiliation(s)
- Zhang-Jian Yang
- Jiangxi Provincial Key Laboratory of Drug Targets and Drug Screening, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China; Department of Pharmacy, 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Wei-Fang Zhang
- Department of Pharmacy, 2nd Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Qing-Qing Jin
- Jiangxi Provincial Key Laboratory of Drug Targets and Drug Screening, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Zhi-Rong Wu
- Jiangxi Provincial Key Laboratory of Drug Targets and Drug Screening, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yun-Yan Du
- Jiangxi Provincial Key Laboratory of Drug Targets and Drug Screening, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Hao Shi
- Jiangxi Provincial Key Laboratory of Drug Targets and Drug Screening, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Zhen-Sheng Qu
- Jiangxi Provincial Key Laboratory of Drug Targets and Drug Screening, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xiao-Jian Han
- Institute of Geriatrics, Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China.
| | - Li-Ping Jiang
- Jiangxi Provincial Key Laboratory of Drug Targets and Drug Screening, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China.
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Li D, Xie X, Zhan Z, Li N, Yin N, Yang S, Liu J, Wang J, Li Z, Yi B, Zhang H, Zhang W. HIF-1 induced tiRNA-Lys-CTT-003 is protective against cisplatin induced ferroptosis of renal tubular cells in mouse AKI model. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167277. [PMID: 38871033 DOI: 10.1016/j.bbadis.2024.167277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/15/2024]
Abstract
HIF-1 activation is protective in acute kidney injury (AKI), but its underlying mechanism is not fully understood. Stress-induced tRNA derived small RNAs play an emerging role in cellular processes. This study investigated the role of HIF-1 associated tiRNA-Lys-CTT-003 (tiR-Lys) in an AKI mouse model. Our sequencing results showed that ischemia can promote the production of renal tiR-Lys by activating HIF-1α. FG-4592, a HIF-1 inducer, can also upregulate the expression of tiR-Lys in renal tubular cells. Both overexpression of tiR-Lys and FG-4592 pre-treatment could improve mitochondrial damage and lipid peroxidation with alleviated renal function and morphological damage in cisplatin-induced AKI mice. While the anti-ferroptosis effect of FG-4592 were largely eliminated by tiR-Lys inhibitor. Notably, tiR-Lys directly alleviated cell death and MDA accumulation induced by the ferroptosis inducer Erastin, accompanied with restored expression of GPX4. RNA-Pulldown and RIP-qPCR results revealed that tiR-Lys can interact with the RNA-binding protein GRSF1.tiR-lys overexpression can preserve protein expression of GRSF1 decreased by cisplatin. Inhibiting Grsf1 via shRNA eliminated the upregulation of GPX4 by tiR-Lys. In conclusion, our study demonstrates that HIF-1α-induced tiR-Lys is protective in cisplatin-induced AKI, primarily by upregulating the level of GPX4 through interaction with GRSF1, thereby inhibiting ferroptosis in renal tubular epithelial cells.
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Affiliation(s)
- Dan Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Xian Xie
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Zishun Zhan
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Nannan Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Ni Yin
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Shikun Yang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Jishi Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Jianwen Wang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Zhi Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Bin Yi
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China.
| | - Wei Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, China; Clinical Research Center for Critical Kidney Disease in Hunan Province, Changsha, Hunan 410013, China.
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Borlak J, Ciribilli Y, Bisio A, Selvaraj S, Inga A, Oh JH, Spanel R. The Abl1 tyrosine kinase is a key player in doxorubicin-induced cardiomyopathy and its p53/p73 cell death mediated signaling differs in atrial and ventricular cardiomyocytes. J Transl Med 2024; 22:845. [PMID: 39285385 PMCID: PMC11403941 DOI: 10.1186/s12967-024-05623-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Accepted: 08/16/2024] [Indexed: 09/20/2024] Open
Abstract
BACKGROUND Doxorubicin is an important anticancer drug, however, elicits dose-dependently cardiomyopathy. Given its mode of action, i.e. topoisomerase inhibition and DNA damage, we investigated genetic events associated with cardiomyopathy and searched for mechanism-based possibilities to alleviate cardiotoxicity. We treated rats at clinically relevant doses of doxorubicin. Histopathology and transmission electron microscopy (TEM) defined cardiac lesions, and transcriptomics unveiled cardiomyopathy-associated gene regulations. Genomic-footprints revealed critical components of Abl1-p53-signaling, and EMSA-assays evidenced Abl1 DNA-binding activity. Gene reporter assays confirmed Abl1 activity on p53-targets while immunohistochemistry/immunofluorescence microscopy demonstrated Abl1, p53&p73 signaling. RESULTS Doxorubicin treatment caused dose-dependently toxic cardiomyopathy, and TEM evidenced damaged mitochondria and myofibrillar disarray. Surviving cardiomyocytes repressed Parkin-1 and Bnip3-mediated mitophagy, stimulated dynamin-1-like dependent mitochondrial fission and induced anti-apoptotic Bag1 signaling. Thus, we observed induced mitochondrial biogenesis. Transcriptomics discovered heterogeneity in cellular responses with minimal overlap between treatments, and the data are highly suggestive for distinct cardiomyocyte (sub)populations which differed in their resilience and reparative capacity. Genome-wide footprints revealed Abl1 and p53 enriched binding sites in doxorubicin-regulated genes, and we confirmed Abl1 DNA-binding activity in EMSA-assays. Extraordinarily, Abl1 signaling differed in the heart with highly significant regulations of Abl1, p53 and p73 in atrial cardiomyocytes. Conversely, in ventricular cardiomyocytes, Abl1 solely-modulated p53-signaling that was BAX transcription-independent. Gene reporter assays established Abl1 cofactor activity for the p53-reporter PG13-luc, and ectopic Abl1 expression stimulated p53-mediated apoptosis. CONCLUSIONS The tyrosine kinase Abl1 is of critical importance in doxorubicin induced cardiomyopathy, and we propose its inhibition as means to diminish risk of cardiotoxicity.
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Affiliation(s)
- Jürgen Borlak
- Centre for Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
| | - Yari Ciribilli
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Alessandra Bisio
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Saravanakumar Selvaraj
- Centre for Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Alberto Inga
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Jung-Hwa Oh
- Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Reinhard Spanel
- Centre for Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
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Ge C, Meng D, Peng Y, Huang P, Wang N, Zhou X, Chang D. The activation of the HIF-1α-VEGFA-Notch1 signaling pathway by Hydroxysafflor yellow A promotes angiogenesis and reduces myocardial ischemia-reperfusion injury. Int Immunopharmacol 2024; 142:113097. [PMID: 39260311 DOI: 10.1016/j.intimp.2024.113097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 08/26/2024] [Accepted: 09/03/2024] [Indexed: 09/13/2024]
Abstract
Hydroxyl Safflower Yellow A (HSYA) is the primary bioactive compound derived from Safflower, which has been scientifically proven to possess anti-inflammatory, anti-apoptotic, and ameliorative properties against mitochondrial damage during acute myocardial ischemia-reperfusion injury (MIRI); however, its effects during the recovery stage remain unknown. Angiogenesis plays a crucial role in the rehabilitation process. AIM OF THE STUDY The objective of this study was to investigate the long-term angiogenic effect of HSYA and its contribution to recovery after myocardial ischemia, as well as explore its underlying mechanism using non-targeted metabolomics and network pharmacology. MATERIALS AND METHODS The MIRI model in rat was established by ligating the left anterior descending branch of the coronary artery. The effect of HSYA was assessed based on myocardial infarction volume and histopathology. Immunofluorescence staining was employed to evaluate angiogenesis, while ELISA was used to detect markers of myocardial injury. Additionally, a rat myocardial microvascular endothelial cell (CMECs) injury model was established using oxygen-glucose deprivation/reoxygenation (OGD/R), followed by scratch assays, migration assays, and tube formation experiments to assess angiogenesis. Western blot analysis was conducted to validate the underlying mechanism. RESULTS Our findings provide compelling evidence for the therapeutic efficacy of HSYA in reducing myocardial infarction size, facilitating cardiac functional recovery, and reversing pathological alterations within the heart. Furthermore, we elucidate that HSYA exerts its effects on promoting migration and generation of myocardial microvascular endothelial cells through activation of the HIF-1α-VEGFA-Notch1 signaling pathway. CONCLUSION These results underscore how HSYA enhances cardiac function via angiogenesis promotion and activation of the aforementioned signaling cascade.
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Affiliation(s)
- Chaowen Ge
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Traditional Chinese Medicine, Hefei 230012, China
| | - Dongdong Meng
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Traditional Chinese Medicine, Hefei 230012, China
| | - Yuqin Peng
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Traditional Chinese Medicine, Hefei 230012, China
| | - Ping Huang
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Traditional Chinese Medicine, Hefei 230012, China.
| | - Ning Wang
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Anhui University of Chinese Medicine, Hefei 230012, China; Institute for Pharmacodynamics and Safety Evaluation of Chinese Medicine, Anhui Academy of Traditional Chinese Medicine, Hefei 230012, China.
| | - Xian Zhou
- NICM Health Research Institute, Western Sydney University, Westmead, Sydney, NSW 2145, Australia
| | - Dennis Chang
- NICM Health Research Institute, Western Sydney University, Westmead, Sydney, NSW 2145, Australia
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Jin Y, Tan M, Yin Y, Lin C, Zhao Y, Zhang J, Jiang T, Li H, He M. Oroxylin A alleviates myocardial ischemia-reperfusion injury by quelling ferroptosis via activating the DUSP10/MAPK-Nrf2 pathway. Phytother Res 2024. [PMID: 39225191 DOI: 10.1002/ptr.8315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 06/30/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024]
Abstract
Reperfusion therapy is the primary treatment strategy for acute myocardial infarction (AMI). Paradoxically, it can lead to myocardial damage, namely myocardial ischemia/reperfusion injury (MIRI). This study explored whether oroxylin A (OA) protects the myocardium after MIRI by inhibiting ferroptosis and the underlying mechanism. In vivo, we established an MIRI model to investigate the protective effect of OA. In vitro, H9C2 cells were used to explore the regulation of ferroptosis by OA through immunofluorescence staining, western blotting, assay kits, etc. Additionally, RNA sequencing analysis (RNA-seq) and network pharmacology analyses were conducted to elucidate the molecular mechanisms. Our results showed that MIRI caused cardiac structural and functional damage in rats. MIRI promoted ferroptosis, which was consistently observed in vitro. However, pretreatment with OA reversed these effects. The mitogen-activated protein kinases (MAPK) signaling pathway participated in the MIRI process, with dual-specificity phosphatase 10 (DUSP10) found to regulate it. Further confirmation was provided by knocking down DUSP10 using small interfering RNA (siRNA), demonstrating the activation of the DUSP10/MAPK-Nrf2 pathway by OA to protect H9C2 cells from ferroptosis. Our research has demonstrated the mitigating effect of OA on MIRI and the improvement of myocardial function for the first time. The inhibition of ferroptosis has been identified as one of the mechanisms through which OA exerts its myocardial protective effects. Moreover, we have first unveiled that DUSP10 serves as an upstream target involved in mediating ferroptosis, and the regulation of the DUSP10/MAPK-Nrf2 pathway by OA is crucial in inhibiting ferroptosis to protect the myocardium.
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Affiliation(s)
- Yifeng Jin
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
- Department of General Practice, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
| | - Mingyue Tan
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
- Department of Geriatrics, Southwest Hospital, The Third Military Medical University (Army Medical University), Chongqing, P. R. China
| | - Yunfei Yin
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
| | - Chen Lin
- Jinjihu Business District Squadron, Suzhou Industrial Park Food and Drug Safety Inspection Team, Suzhou, Jiangsu, P. R. China
| | - Yongjian Zhao
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
| | - Jun Zhang
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
| | - Tingbo Jiang
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
| | - Hongxia Li
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
| | - Mingqing He
- Department of Gerontology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, P. R. China
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Ma X, Wang L, Li W, Huang Y, Zhu Y, Li J. SP1 MEDIATES OGD/R-INDUCED CARDIOMYOCYTE INJURY VIA ENHANCING THE TRANSCRIPTION OF USP46. Shock 2024; 62:327-335. [PMID: 38813924 DOI: 10.1097/shk.0000000000002401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
ABSTRACT Background: One of the mechanisms responsible for the high mortality rate of acute myocardial infarction is myocardial ischemia-reperfusion injury (MI-RI). The present study focused on the role and regulatory mechanisms of specificity protein 1 (SP1) and ubiquitin-specific protease 46 (USP46) in oxygen-glucose deprivation/reperfusion (OGD/R)-induced cardiomyocyte injury. Methods: OGD/R was used to treat cardiomyocytes AC16 to mimic ischemia-reperfusion in vitro . Cell viability, proliferation, and apoptosis were determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, 5-ethynyl-2'-deoxyuridine, and flow cytometry assays. Enzyme-linked immunosorbent assays analyzed the concentrations of TNF-α and IL-1β. Several protein levels were analyzed by western blotting. The levels of iron (Fe 2+ ), reactive oxygen species, malondialdehyde, and the activities of superoxide dismutase were analyzed by commercial kits. Chromatin immunoprecipitation and dual-luciferase report assays assessed the relationship between USP46 and SP1. Results: USP46 and SP1 were upregulated in serum from MI patients and they had a positive correlation. OGD/R stimulation suppressed cardiomyocyte viability and proliferation, as well as induced cardiomyocyte inflammation, oxidative stress (OxS) injury, apoptosis, and ferroptosis, but these effects were impaired by USP46 or SP1 knockdown. SP1 could enhance the transcription of USP46, and USP46 overexpression reversed SP1 silencing-mediated effects on OGD/R-induced cardiomyocytes. SP1 mediated the AMPK signaling via USP46 . Conclusion: SP1 mediated OGD/R-induced cardiomyocyte inflammation, OxS injury, apoptosis, and ferroptosis by inactivating the AMPK signaling via enhancing the transcription of USP46.
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Affiliation(s)
- Xuming Ma
- Department of Cardiology, Gansu Provincial Hospital, Lanzhou, Gansu, China
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8
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Mialet-Perez J, Belaidi E. Interplay between hypoxia inducible Factor-1 and mitochondria in cardiac diseases. Free Radic Biol Med 2024; 221:13-22. [PMID: 38697490 DOI: 10.1016/j.freeradbiomed.2024.04.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/23/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Ischemic heart diseases and cardiomyopathies are characterized by hypoxia, energy starvation and mitochondrial dysfunction. HIF-1 acts as a cellular oxygen sensor, tuning the balance of metabolic and oxidative stress pathways to provide ATP and sustain cell survival. Acting on mitochondria, HIF-1 regulates different processes such as energy substrate utilization, oxidative phosphorylation and mitochondrial dynamics. In turn, mitochondrial homeostasis modifications impact HIF-1 activity. This underlies that HIF-1 and mitochondria are tightly interconnected to maintain cell homeostasis. Despite many evidences linking HIF-1 and mitochondria, the mechanistic insights are far from being understood, particularly in the context of cardiac diseases. Here, we explore the current understanding of how HIF-1, reactive oxygen species and cell metabolism are interconnected, with a specific focus on mitochondrial function and dynamics. We also discuss the divergent roles of HIF in acute and chronic cardiac diseases in order to highlight that HIF-1, mitochondria and oxidative stress interaction deserves to be deeply investigated. While the strategies aiming at stabilizing HIF-1 have provided beneficial effects in acute ischemic injury, some deleterious effects were observed during prolonged HIF-1 activation. Thus, deciphering the link between HIF-1 and mitochondria will help to optimize HIF-1 modulation and provide new therapeutic perspectives for the treatment of cardiovascular pathologies.
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Affiliation(s)
- Jeanne Mialet-Perez
- Univ. Angers, INSERM, CNRS, MITOVASC, Equipe MitoLab, SFR ICAT, Angers, France
| | - Elise Belaidi
- Univ. Lyon 1, Laboratory of Tissue Biology and Therapeutic Engineering, CNRS, LBTI UMR 5305, 69367, Lyon, France.
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Marzook H, Gupta A, Jayakumar MN, Saleh MA, Tomar D, Qaisar R, Ahmad F. GSK-3α-BNIP3 axis promotes mitophagy in human cardiomyocytes under hypoxia. Free Radic Biol Med 2024; 221:235-244. [PMID: 38815772 DOI: 10.1016/j.freeradbiomed.2024.05.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/24/2024] [Accepted: 05/25/2024] [Indexed: 06/01/2024]
Abstract
Dysregulated autophagy/mitophagy is one of the major causes of cardiac injury in ischemic conditions. Glycogen synthase kinase-3alpha (GSK-3α) has been shown to play a crucial role in the pathophysiology of cardiac diseases. However, the precise role of GSK-3α in cardiac mitophagy remains unknown. Herein, we investigated the role of GSK-3α in cardiac mitophagy by employing AC16 human cardiomyocytes under the condition of acute hypoxia. We observed that the gain-of-GSK-3α function profoundly induced mitophagy in the AC16 cardiomyocytes post-hypoxia. Moreover, GSK-3α overexpression led to increased ROS generation and mitochondrial dysfunction in cardiomyocytes, accompanied by enhanced mitophagy displayed by increased mt-mKeima intensity under hypoxia. Mechanistically, we identified that GSK-3α promotes mitophagy through upregulation of BNIP3, caused by GSK-3α-mediated increase in expression of HIF-1α and FOXO3a in cardiomyocytes post-hypoxia. Moreover, GSK-3α displayed a physical interaction with BNIP3 and, inhibited PINK1 and Parkin recruitment to mitochondria was observed specifically under hypoxia. Taken together, we identified a novel mechanism of mitophagy in human cardiomyocytes. GSK-3α promotes mitochondrial dysfunction and regulates FOXO3a -mediated BNIP3 overexpression in cardiomyocytes to facilitate mitophagy following hypoxia. An interaction between GSK-3α and BNIP3 suggests a role of GSK-3α in BNIP3 recruitment to the mitochondrial membrane where it enhances mitophagy in stressed cardiomyocytes independent of the PINK1/Parkin.
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Affiliation(s)
- Hezlin Marzook
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Anamika Gupta
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Manju N Jayakumar
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Mohamed A Saleh
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Dhanendra Tomar
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Rizwan Qaisar
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Firdos Ahmad
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates.
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10
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Chand Dakal T, Choudhary K, Tiwari I, Yadav V, Kumar Maurya P, Kumar Sharma N. Unraveling the Triad: Hypoxia, Oxidative Stress and Inflammation in Neurodegenerative Disorders. Neuroscience 2024; 552:126-141. [PMID: 38936458 DOI: 10.1016/j.neuroscience.2024.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/07/2024] [Accepted: 06/22/2024] [Indexed: 06/29/2024]
Abstract
The mammalian brain's complete dependence on oxygen for ATP production makes it highly susceptible to hypoxia, at high altitudes or in clinical scenarios including anemia or pulmonary disease. Hypoxia plays a crucial role in the development of various brain disorders, such as Alzheimer's, Parkinson's, and other age-related neurodegenerative diseases. On the other hand, a decrease in environmental oxygen levels, such as prolonged stays at high elevations, may have beneficial impacts on the process of ageing and the likelihood of death. Additionally, the utilization of controlled hypoxia exposure could potentially serve as a therapeutic approach for age-related brain diseases. Recent findings indicate that the involvement of HIF-1α and the NLRP3 inflammasome is of significant importance in the development of Alzheimer's disease. HIF-1α serves as a pivotal controller of various cellular reactions to oxygen deprivation, exerting influence on a multitude of physiological mechanisms such as energy metabolism and inflammatory responses. The NLRP3 plays a crucial role in the innate immune system by coordinating the initiation of inflammatory reactions through the assembly of the inflammasome complex. This review examines the information pertaining to the contrasting effects of hypoxia on the brain, highlighting both its positive and deleterious effects and molecular pathways that are involved in mediating these different effects. This study explores potential strategies for therapeutic intervention that focus on restoring cellular balance and reducing neuroinflammation, which are critical aspects in addressing this severe neurodegenerative condition and addresses crucial inquiries that warrant further future investigations.
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Affiliation(s)
- Tikam Chand Dakal
- Genome and Computational Biology Lab, Mohanlal Sukhadia University, Udaipur 313001, Rajasthan, India
| | - Kanika Choudhary
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Isha Tiwari
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Tonk 304022, Rajasthan, India
| | - Vikas Yadav
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Pawan Kumar Maurya
- Department of Biochemistry, Central University of Haryana, Mahendergarh 123031, India
| | - Narendra Kumar Sharma
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Tonk 304022, Rajasthan, India.
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11
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Pareek G, Kundu M. Physiological functions of ULK1/2. J Mol Biol 2024; 436:168472. [PMID: 38311233 PMCID: PMC11382334 DOI: 10.1016/j.jmb.2024.168472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/10/2024]
Abstract
UNC-51-like kinases 1 and 2 (ULK1/2) are serine/threonine kinases that are best known for their evolutionarily conserved role in the autophagy pathway. Upon sensing the nutrient status of a cell, ULK1/2 integrate signals from upstream cellular energy sensors such as mTOR and AMPK and relay them to the downstream components of the autophagy machinery. ULK1/2 also play indispensable roles in the selective autophagy pathway, removing damaged mitochondria, invading pathogens, and toxic protein aggregates. Additional functions of ULK1/2 have emerged beyond autophagy, including roles in protein trafficking, RNP granule dynamics, and signaling events impacting innate immunity, axon guidance, cellular homeostasis, and cell fate. Therefore, it is no surprise that alterations in ULK1/2 expression and activity have been linked with pathophysiological processes, including cancer, neurological disorders, and cardiovascular diseases. Growing evidence suggests that ULK1/2 function as biological rheostats, tuning cellular functions to intra and extra-cellular cues. Given their broad physiological relevance, ULK1/2 are candidate targets for small molecule activators or inhibitors that may pave the way for the development of therapeutics for the treatment of diseases in humans.
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Affiliation(s)
- Gautam Pareek
- Cell and Molecular Biology Department, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Mondira Kundu
- Cell and Molecular Biology Department, St. Jude Children's Research Hospital, Memphis, TN, USA.
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12
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Wang Y, Wang Z, Peng Z, Feng L, Tian W, Zhang S, Cao L, Li J, Yang L, Xu Y, Gao Y, Liu J, Yan J, Ma X, Sun W, Guo L, Li X, Shen Y, Qi Z. Cocaine and amphetamine-regulated transcript improves myocardial ischemia-reperfusion injury through PI3K/AKT signalling pathway. Clin Exp Pharmacol Physiol 2024; 51:e13904. [PMID: 38923060 DOI: 10.1111/1440-1681.13904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 04/13/2024] [Accepted: 05/19/2024] [Indexed: 06/28/2024]
Abstract
Myocardial ischemia-reperfusion injury (MIRI) is a common clinic scenario that occurs in the context of reperfusion therapy for acute myocardial infarction. It has been shown that cocaine and amphetamine-regulated transcript (CART) can ameliorate cerebral ischemia-reperfusion (I/R) injury, but the effect of CART on MIRI has not been studied yet. Here, we revealed that CART protected the heart during I/R process by inhibiting apoptosis and excessive autophagy, indicating that CART would be a potential drug candidate for the treatment of MIRI. Further analysis showed that CART upregulated the activation of phospho-AKT, leading to downregulation of lactate dehydrogenase (LDH) release, apoptosis, oxidative stress and excessive autophagy after I/R, which was inhibited by PI3K inhibitor, LY294002. Collectively, CART attenuated MIRI through inhibition of cardiomyocytes apoptosis and excessive autophagy, and the protective effect was dependent on PI3K/AKT signalling pathway.
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Affiliation(s)
- Yachen Wang
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin, China
| | - Ziwei Wang
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
- NanKai University Eye Institute, Tianjin, China
| | - Zeyan Peng
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
| | - Lifeng Feng
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
| | - Wencong Tian
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
- Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, China
| | - Shengzheng Zhang
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
| | - Lei Cao
- Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, China
| | - Jing Li
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
| | - Liang Yang
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
- Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, China
| | - Yang Xu
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
| | - Yang Gao
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
- Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, China
| | - Jie Liu
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
| | - Jie Yan
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
| | - Xiaodong Ma
- Fifth People's Hospital of Dongying, Shandong, China
| | - Wangchun Sun
- Fifth People's Hospital of Dongying, Shandong, China
| | - Lihong Guo
- Shengli Oilfield Central Hospital Gastrointestinal Disease Research Institute, Shandong, China
| | - Xuan Li
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin, China
| | - Yanna Shen
- School of Medical Technology, Tianjin Medical University, Tianjin, China
| | - Zhi Qi
- Department of Molecular Pharmacology, School of Medicine, Nankai University, Tianjin, China
- NanKai University Eye Institute, Tianjin, China
- Tianjin Key Laboratory of General Surgery in Construction, Tianjin Union Medical Center, Tianjin, China
- Shengli Oilfield Central Hospital Gastrointestinal Disease Research Institute, Shandong, China
- Xinjiang Production and Construction Corps Hospital, Xinjiang, China
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13
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Zeng H, Zeng D, Yin X, Zhang W, Wu M, Chen Z. Research progress on high-concentration oxygen therapy after cerebral hemorrhage. Front Neurol 2024; 15:1410525. [PMID: 39139771 PMCID: PMC11320605 DOI: 10.3389/fneur.2024.1410525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 07/18/2024] [Indexed: 08/15/2024] Open
Abstract
Recently, the role of high-concentration oxygen therapy in cerebral hemorrhage has been extensively discussed. This review describes the research progress in high-concentration oxygen therapy after cerebral hemorrhage. High-concentration oxygen therapy can be classified into two treatment methods: hyperbaric and normobaric high-concentration oxygen therapy. Several studies have reported that high-concentration oxygen therapy uses the pathological mechanisms of secondary ischemia and hypoxia after cerebral hemorrhage as an entry point to improve cerebral oxygenation, metabolic rate, cerebral edema, intracranial pressure, and oxidative stress. We also elucidate the mechanisms by which molecules such as Hypoxia-inducible factor 1-alpha (HIF-1α), vascular endothelial growth factor, and erythropoietin (EPO) may play a role in oxygen therapy. Although people are concerned about the toxicity of hyperoxia, combined with relevant literature, the evidence discussed in this article suggests that as long as the duration, concentration, pressure, and treatment interval of patients with cerebral hemorrhage are properly understood and oxygen is administered within the treatment window, it can be effective to avoid hyperoxic oxygen toxicity. Combined with the latest research, we believe that high-concentration oxygen therapy plays an important positive role in injuries and outcomes after cerebral hemorrhage, and we recommend expanding the use of normal-pressure high-concentration oxygen therapy for cerebral hemorrhage.
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Affiliation(s)
- He Zeng
- Department of Neurology, Clinical Medical School of Jiujiang University, Jiujiang, Jiangxi, China
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, China
| | - Dakai Zeng
- Department of Anorectal Surgery, Third Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Xiaoping Yin
- Department of Neurology, Clinical Medical School of Jiujiang University, Jiujiang, Jiangxi, China
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, China
| | - Wumiao Zhang
- Department of Neurology, Clinical Medical School of Jiujiang University, Jiujiang, Jiangxi, China
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, China
| | - Moxin Wu
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, China
| | - Zhiying Chen
- Department of Neurology, Clinical Medical School of Jiujiang University, Jiujiang, Jiangxi, China
- Jiujiang Clinical Precision Medicine Research Center, Jiujiang, Jiangxi, China
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14
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Xu Y, Li S, Wang Y, Pu W, Liu Q, Zhang Y, Liu Y, Hao H. Fangji Huangqi Decoction alleviates rheumatoid arthritis through regulating HIF-1α mediated the angiogenesis and the balance between autophagy and apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2024; 329:118061. [PMID: 38614265 DOI: 10.1016/j.jep.2024.118061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/29/2024] [Accepted: 03/13/2024] [Indexed: 04/15/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Fangji Huangqi Decoction (FHD) is frequently prescribed for the clinical treatment of wind-cold and wind-dampness pathogenic superficial deficiency syndrome. It also has a notable curative effect on rheumatoid arthritis (RA). AIM OF THE STUDY The study aimed to explore the possible mechanism of FHD against RA and provided a theoretical basis for alternative therapies for RA. MATERIALS AND METHODS We used UPLC-Q-TOF-MS to analysis the ingredients and absorbed blood components of FHD. At the same time, the collagen-induced arthritis (CIA) rat model was established to estimate the therapeutic effects on FHD by considering body weight, arthritis score, paw swelling, autonomous movement ability, and synovial microvessel counts. Subsequently, immunofluorescence, immunohistochemistry, and Western blot were employed to detect the anti-angiogenic capacity of FHD in vivo, as well as the levels of apoptosis and autophagy in the synovial tissue. In addition, flow cytometry and Western blot were used to assess the effects of FHD on apoptosis and autophagy in MH7A cells. The effects of FHD on the proliferation and migration of MH7A cells were measured by CCK8 assay, cell migration and, invasion experiments. Finally, a tube formation assay was performed to evaluate the angiogenic capacity of FHD in co-cultures of MH7A cells and HUVEC cells. RESULTS Through testing of FHD's original formula, a total of 26 active ingredients have been identified, with 17 of them being absorbed into the bloodstream. FHD significantly improved the pathological symptoms and synovial hyperplasia of CIA rats. FHD could suppress the expression of HIF-1α, promote apoptosis in CIA rat synovial tissue, and suppress autophagy and angiogenesis. In vitro experiments showed that serum containing FHD inhibited the proliferation, migration, and invasion of MH7A cells, and also suppressed the expression of autophagy-related proteins while promoting apoptosis. FHD markedly repressed the expression of HIF-1α protein in TNF-α-stimulated MH7A cells and inhibited the tube formation capacity induced by MH7A cells in HUVEC cells. CONCLUSIONS The study had proven that FHD played an excellent anti-RA role, which may be attributed to its potential mechanism of regulating the balance between autophagy and apoptosis in RA FLS by suppressing the HIF-1α, thus contributing to its anti-angiogenic activities.
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Affiliation(s)
- Ye Xu
- The Basic Laboratory of Integrated Chinese and Western Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China; School of Basic Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Siyuan Li
- The Basic Laboratory of Integrated Chinese and Western Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Yuru Wang
- The Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
| | - Wei Pu
- The Basic Laboratory of Integrated Chinese and Western Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Qi Liu
- The Basic Laboratory of Integrated Chinese and Western Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Yumeng Zhang
- The Basic Laboratory of Integrated Chinese and Western Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China; School of Basic Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Yang Liu
- The Basic Laboratory of Integrated Chinese and Western Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China; School of Basic Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Huiqin Hao
- The Basic Laboratory of Integrated Chinese and Western Medicine, Shanxi University of Chinese Medicine, Jinzhong, 030619, China.
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15
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Ma X, Wang M, Wang J, Han X, Yang X, Zhang H, Zhong D, Qiu S, Yu S, Wang L, Pan Y. Hypoxia-Inducible Factor 1α Affects Yak Oocyte Maturation and Early Embryonic Development by Regulating Autophagy. Antioxidants (Basel) 2024; 13:840. [PMID: 39061908 PMCID: PMC11273763 DOI: 10.3390/antiox13070840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/01/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
In animal assisted reproductive technology, the production of high-quality oocytes is crucial. The yak, having lived in the Qinghai-Tibet Plateau for an extended period, has reproductive cells that are regulated by hypoxia-inducible factor 1α (HIF-1α). This study aimed to investigate the impact of HIF-1α on yak oocyte maturation and early embryonic development in vitro through the regulation of autophagy. The in vitro maturation process of yak oocytes involved the addition of the HIF-1α inducer DFOM and the inhibitor LW6 to examine their effects on yak oocyte maturation, early embryonic development, cell autophagy, cytochrome P450s (CYP450s) enzyme expression, and cumulus diffusion factors. The findings revealed that DFOM significantly upregulated the expression of HIF-1α, resulting in increased the cumulus diffusion area, elevated first polar body expulsion rate of oocytes, enhanced mitochondrial and actin levels, decreased ROS production, and reduced early apoptosis levels of oocytes. Moreover, DFOM promoted the expression of autophagy-related proteins, CYP450s enzymes, and cumulus diffusion factors, thereby enhancing oocyte maturation and early embryonic development. Conversely, LW6 exhibited opposite effects. The inhibition of autophagy levels with 3-MA during DFOM treatment yielded similar outcomes. Furthermore, reducing autophagy led to increased apoptosis levels at all stages of early embryonic development, as well as a significant decrease in total cell number and ICM/TE ratio of blastocysts. Studies have shown that during the in vitro maturation of yak oocytes, HIF-1α can affect the cumulus expansion area of oocytes by regulating autophagy, the first polar body excretion rate, mitochondrial level, actin level, ROS and early apoptosis level, the CYP450s enzyme, and the expression of cumulus expansion factors, thereby improving the in vitro maturation and early embryonic development of yak oocytes. These findings offer valuable insights into the reproductive regulation mechanism of yaks in hypoxic environments and suggest potential strategies for the advancement of yak assisted reproductive technology.
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Affiliation(s)
- Xin Ma
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
| | - Meng Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Jinglei Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
| | - Xiaohong Han
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
| | - Xiaoqing Yang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
| | - Hui Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
| | - Donglan Zhong
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
| | - Shantong Qiu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
| | - Sijiu Yu
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Libin Wang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
| | - Yangyang Pan
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China; (X.M.); (M.W.); (J.W.); (X.H.); (X.Y.); (H.Z.); (D.Z.); (S.Q.); (S.Y.); (L.W.)
- Gansu Province Livestock Embryo Engineering Research Center, Lanzhou 730070, China
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16
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Ponticelli C, Reggiani F, Moroni G. Autophagy: A Silent Protagonist in Kidney Transplantation. Transplantation 2024; 108:1532-1541. [PMID: 37953477 DOI: 10.1097/tp.0000000000004862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Autophagy is a lysosome-dependent regulated mechanism that recycles unnecessary cytoplasmic components. It is now known that autophagy dysfunction may have a pathogenic role in several human diseases and conditions, including kidney transplantation. Both defective and excessive autophagy may induce or aggravate several complications of kidney transplantation, such as ischemia-reperfusion injury, alloimmune response, and immunosuppressive treatment and side effects. Although it is still complicated to measure autophagy levels in clinical practice, more attention should be paid to the factors that may influence autophagy. In kidney transplantation, the association of low doses of a mammalian target of rapamycin inhibitor with low doses of a calcineurin inhibitor may be of benefit for autophagy modulation. However, further studies are needed to explore the role of other autophagy regulators.
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Affiliation(s)
| | - Francesco Reggiani
- Nephrology and Dialysis Unit, IRCCS Humanitas Research Hospital, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Gabriella Moroni
- Nephrology and Dialysis Unit, IRCCS Humanitas Research Hospital, Milan, Italy
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17
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Amin N, Abbasi IN, Wu F, Shi Z, Sundus J, Badry A, Yuan X, Zhao BX, Pan J, Mi XD, Luo Y, Geng Y, Fang M. The Janus face of HIF-1α in ischemic stroke and the possible associated pathways. Neurochem Int 2024; 177:105747. [PMID: 38657682 DOI: 10.1016/j.neuint.2024.105747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/01/2024] [Accepted: 04/19/2024] [Indexed: 04/26/2024]
Abstract
Stroke is the most devastating disease, causing paralysis and eventually death. Many clinical and experimental trials have been done in search of a new safe and efficient medicine; nevertheless, scientists have yet to discover successful remedies that are also free of adverse effects. This is owing to the variability in intensity, localization, medication routes, and each patient's immune system reaction. HIF-1α represents the modern tool employed to treat stroke diseases due to its functions: downstream genes such as glucose metabolism, angiogenesis, erythropoiesis, and cell survival. Its role can be achieved via two downstream EPO and VEGF strongly related to apoptosis and antioxidant processes. Recently, scientists paid more attention to drugs dealing with the HIF-1 pathway. This review focuses on medicines used for ischemia treatment and their potential HIF-1α pathways. Furthermore, we discussed the interaction between HIF-1α and other biological pathways such as oxidative stress; however, a spotlight has been focused on certain potential signalling contributed to the HIF-1α pathway. HIF-1α is an essential regulator of oxygen balance within cells which affects and controls the expression of thousands of genes related to sustaining homeostasis as oxygen levels fluctuate. HIF-1α's role in ischemic stroke strongly depends on the duration and severity of brain damage after onset. HIF-1α remains difficult to investigate, particularly in ischemic stroke, due to alterations in the acute and chronic phases of the disease, as well as discrepancies between the penumbra and ischemic core. This review emphasizes these contrasts and analyzes the future of this intriguing and demanding field.
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Affiliation(s)
- Nashwa Amin
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China; Department of Zoology, Faculty of Science, Aswan University, Egypt; Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Irum Naz Abbasi
- Institute of Systemic Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Fei Wu
- Institute of Systemic Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Zongjie Shi
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Javaria Sundus
- Institute of Systemic Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Azhar Badry
- Institute of Systemic Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Xia Yuan
- Institute of Systemic Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Bing-Xin Zhao
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Jie Pan
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Xiao-Dan Mi
- Center for Rehabilitation Medicine, Rehabilitation & Sports Medicine Research Institute of Zhejiang Province, Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yuhuan Luo
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yu Geng
- Center for Rehabilitation Medicine, Department of Neurology, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Marong Fang
- Institute of Systemic Medicine, Zhejiang University School of Medicine, Hangzhou, China; Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
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18
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Dai B, Liu H, Juan D, Wu K, Cao R. The role of miRNA-29b1 on the hypoxia-induced apoptosis in mammalian cardiomyocytes. Eur J Histochem 2024; 68:4021. [PMID: 38934067 PMCID: PMC11228570 DOI: 10.4081/ejh.2024.4021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/06/2024] [Indexed: 06/28/2024] Open
Abstract
Cardiomyocyte apoptosis is a complex biological process involving the interaction of many factors and signaling pathways. In hypoxic environment, cardiomyocytes may trigger apoptosis due to insufficient energy supply, increased production of oxygen free radicals, and disturbance of intracellular calcium ion balance. The present research aimed to investigate the role of microRNA-29b1 (miR-29b1) in hypoxia-treated cardiomyocytes and its potential mechanism involved. We established an in vitro ischemia model using AC16 and H9C2 cardiomyocytes through hypoxia treatment (1% O2, 48 h). Cell apoptosis was evaluated by flow cytometry using Annexin V FITC-PI staining assay. Moreover, we used Western blot and immunofluorescence analysis to determine the expression of Bcl-2, Bax caspase-3 and Cx43 proteins. We found that miR-29b1 protected AC16 and H9C2 cells from hypoxia-induced injury as evidence that miR-29b1 attenuated the effects of hypoxia treatment on AC16 and H9C2 cell apoptosis after hypoxia treatment. In conclusion, our findings suggest that miR-29b1 may have potential cardiovascular protective effects during ischemia-related myocardial injury.
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Affiliation(s)
- Bo Dai
- Department of Cardiology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan.
| | - Hailin Liu
- Department of Cardiology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan.
| | - Dingmin Juan
- Department of Cardiology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan.
| | - Kaize Wu
- Department of Cardiology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan.
| | - Ruhao Cao
- Department of Cardiology, The Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan.
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19
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Zhao Y, Li H, Ma X, Meng X, Tang Q. Identification of biomarkers related to angiogenesis in myocardial ischemia-reperfusion injury and prediction of potential drugs. PLoS One 2024; 19:e0300790. [PMID: 38935597 PMCID: PMC11210787 DOI: 10.1371/journal.pone.0300790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 03/05/2024] [Indexed: 06/29/2024] Open
Abstract
Myocardial ischemia-reperfusion injury (MIRI) refers to the secondary damage to myocardial tissue that occurs when blood perfusion is rapidly restored following myocardial ischemia. This process often exacerbates the injury to myocardial fiber structure and function. The activation mechanism of angiogenesis is closely related to MIRI and plays a significant role in the occurrence and progression of ischemic injury. In this study, we utilized sequencing data from the GEO database and employed WGCNA, Mfuzz cluster analysis, and protein interaction network to identify Stat3, Rela, and Ubb as hub genes involved in MIRI-angiogenesis. Additionally, the GO and KEGG analysis of differentially expressed genes highlighted their broad participation in inflammatory responses and associated signaling pathways. Moreover, the analysis of sequencing data and hub genes revealed a notable increase in the infiltration ratio of monocytes and activated mast cells. By establishing key cell ROC curves, using independent datasets, and validating the expression of hub genes, we demonstrated their high diagnostic value. Moreover, by scrutinizing single-cell sequencing data alongside trajectory analysis, it has come to light that Stat3 and Rela exhibit predominant expression within Dendritic cells. In contrast, Ubb demonstrates expression across multiple cell types, with all three genes being expressed at distinct stages of cellular development. Lastly, leveraging the CMap database, we predicted potential small molecule compounds for the identified hub genes and validated their binding activity through molecular docking. Ultimately, our research provides valuable evidence and references for the early diagnosis and treatment of MIRI from the perspective of angiogenesis.
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Affiliation(s)
- Yaowei Zhao
- Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Hongyu Li
- Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
- Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Xiyuan Ma
- Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Xianghong Meng
- Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
| | - Qiang Tang
- Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
- Second Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang, China
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20
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Laird M, Ku JC, Raiten J, Sriram S, Moore M, Li Y. Mitochondrial metabolism regulation and epigenetics in hypoxia. Front Physiol 2024; 15:1393232. [PMID: 38915781 PMCID: PMC11194441 DOI: 10.3389/fphys.2024.1393232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/13/2024] [Indexed: 06/26/2024] Open
Abstract
The complex and dynamic interaction between cellular energy control and gene expression modulation is shown by the intersection between mitochondrial metabolism and epigenetics in hypoxic environments. Poor oxygen delivery to tissues, or hypoxia, is a basic physiological stressor that sets off a series of reactions in cells to adapt and endure oxygen-starved environments. Often called the "powerhouse of the cell," mitochondria are essential to cellular metabolism, especially regarding producing energy through oxidative phosphorylation. The cellular response to hypoxia entails a change in mitochondrial metabolism to improve survival, including epigenetic modifications that control gene expression without altering the underlying genome. By altering the expression of genes involved in angiogenesis, cell survival, and metabolism, these epigenetic modifications help cells adapt to hypoxia. The sophisticated interplay between mitochondrial metabolism and epigenetics in hypoxia is highlighted by several important points, which have been summarized in the current article. Deciphering the relationship between mitochondrial metabolism and epigenetics during hypoxia is essential to understanding the molecular processes that regulate cellular adaptation to reduced oxygen concentrations.
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Affiliation(s)
- Madison Laird
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Jennifer C. Ku
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Jacob Raiten
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Sashwat Sriram
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Megan Moore
- Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
| | - Yong Li
- Department of Orthopaedic Surgery, Biomedical Engineering, Western Michigan University Homer Stryker School of Medicine, Kalamazoo, MI, United States
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21
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Liu BH, Xu CZ, Liu Y, Lu ZL, Fu TL, Li GR, Deng Y, Luo GQ, Ding S, Li N, Geng Q. Mitochondrial quality control in human health and disease. Mil Med Res 2024; 11:32. [PMID: 38812059 PMCID: PMC11134732 DOI: 10.1186/s40779-024-00536-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 05/07/2024] [Indexed: 05/31/2024] Open
Abstract
Mitochondria, the most crucial energy-generating organelles in eukaryotic cells, play a pivotal role in regulating energy metabolism. However, their significance extends beyond this, as they are also indispensable in vital life processes such as cell proliferation, differentiation, immune responses, and redox balance. In response to various physiological signals or external stimuli, a sophisticated mitochondrial quality control (MQC) mechanism has evolved, encompassing key processes like mitochondrial biogenesis, mitochondrial dynamics, and mitophagy, which have garnered increasing attention from researchers to unveil their specific molecular mechanisms. In this review, we present a comprehensive summary of the primary mechanisms and functions of key regulators involved in major components of MQC. Furthermore, the critical physiological functions regulated by MQC and its diverse roles in the progression of various systemic diseases have been described in detail. We also discuss agonists or antagonists targeting MQC, aiming to explore potential therapeutic and research prospects by enhancing MQC to stabilize mitochondrial function.
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Affiliation(s)
- Bo-Hao Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
- Department of Thoracic Surgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Chen-Zhen Xu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yi Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zi-Long Lu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ting-Lv Fu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Rui Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yu Deng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Qing Luo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Song Ding
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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22
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Liu H, Wang X, He K, Chen Z, Li X, Ren J, Zhao X, Liu S, Zhou T, Chen H. Oxidized DJ-1 activates the p-IKK/NF-κB/Beclin1 pathway by binding PTEN to induce autophagy and exacerbate myocardial ischemia-reperfusion injury. Eur J Pharmacol 2024; 971:176496. [PMID: 38508437 DOI: 10.1016/j.ejphar.2024.176496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/22/2024]
Abstract
Patients with myocardial infarction have a much worse prognosis when they have myocardial ischemia-reperfusion (I/R) injury. Further research into the molecular basis of myocardial I/R injury is therefore urgently needed, as well as the identification of novel therapeutic targets and linkages to interventions. Three cysteine residues are present in DJ-1 at amino acids 46, 53, and 106 sites, with the cysteine at position 106 being the most oxidation-prone. This study sought to understand how oxidized DJ-1(C106) contributes to myocardial I/R damage. Rats' left anterior descending branches were tied off to establish a myocardial I/R model in vivo. A myocardial I/R model in vitro was established via anoxia/reoxygenation (A/R) of H9c2 cells. The results showed that autophagy increased after I/R, accompanied by the increased expression of oxidized DJ-1 (ox-DJ-1). In contrast, after pretreatment with NAC (N-acetylcysteine, a ROS scavenger) or Comp-23 (Compound-23, a specific antioxidant binding to the C106 site of DJ-1), the levels of ox-DJ-1, autophagy and LDH release decreased, and cell survival rate increased. Furthermore, the inhibition of interaction between ox-DJ-1 and PTEN could increase PTEN phosphatase activity, inhibit the p-IKK/NF-κB/Beclin1 pathway, reduce injurious autophagy, and alleviate A/R injury. However, BA (Betulinic acid, a NF-κB agonist) was able to reverse the protective effects produced by Comp-23 pretreatment. In conclusion, ox-DJ-1 could activate detrimental autophagy through the PTEN/p-IKK/NF-κB/Beclin1 pathway and exacerbate myocardial I/R injury.
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Affiliation(s)
- Huiru Liu
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xueying Wang
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China; Jiangxi Provincial People's Hospital, The First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, 330004, PR China
| | - Kang He
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Zihan Chen
- Queen Mary School, Medical Department, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xiaoqi Li
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Jianmin Ren
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xiaoyan Zhao
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China; Affiliated Hospital of Jining Medical University, Jining, Shandong, 272000, PR China
| | - Song Liu
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Tingting Zhou
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China; Affiliated Hospital of Jining Medical University, Jining, Shandong, 272000, PR China
| | - Heping Chen
- School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, 330006, PR China.
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23
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Peng Y, Tao Y, Liu L, Zhang J, Wei B. Crosstalk among Reactive Oxygen Species, Autophagy and Metabolism in Myocardial Ischemia and Reperfusion Stages. Aging Dis 2024; 15:1075-1107. [PMID: 37728583 PMCID: PMC11081167 DOI: 10.14336/ad.2023.0823-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/23/2023] [Indexed: 09/21/2023] Open
Abstract
Myocardial ischemia is the most common cardiovascular disease. Reperfusion, an important myocardial ischemia tool, causes unexpected and irreversible damage to cardiomyocytes, resulting in myocardial ischemia/reperfusion (MI/R) injury. Upon stress, especially oxidative stress induced by reactive oxygen species (ROS), autophagy, which degrades the intracellular energy storage to produce metabolites that are recycled into metabolic pathways to buffer metabolic stress, is initiated during myocardial ischemia and MI/R injury. Excellent cardioprotective effects of autophagy regulators against MI and MI/R have been reported. Reversing disordered cardiac metabolism induced by ROS also exhibits cardioprotective action in patients with myocardial ischemia. Herein, we review current knowledge on the crosstalk between ROS, cardiac autophagy, and metabolism in myocardial ischemia and MI/R. Finally, we discuss the possible regulators of autophagy and metabolism that can be exploited to harness the therapeutic potential of cardiac metabolism and autophagy in the diagnosis and treatment of myocardial ischemia and MI/R.
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Affiliation(s)
- Yajie Peng
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China.
| | - Yachuan Tao
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China.
- Department of Pharmacology, School of Pharmaceutical Sciences, Fudan University, Shanghai, China
| | - Lingxu Liu
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China.
| | - Ji Zhang
- The First Affiliated Hospital of Zhengzhou University, Department of Pharmacy, Zhengzhou, Henan, China.
| | - Bo Wei
- Key Laboratory of Advanced Pharmaceutical Technology, Ministry of Education of China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, Henan, China.
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24
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Florance I, Ramasubbu S. Regulation of genes involved in the metabolic adaptation of murine microglial cells in response to elevated HIF-1α mediated activation. Immunogenetics 2024; 76:93-108. [PMID: 38326657 DOI: 10.1007/s00251-024-01334-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 01/15/2024] [Indexed: 02/09/2024]
Abstract
Microglia cells are activated in response to different stress signals. Several metabolic adaptations underlie microglia activation in the brain. Among these, in conditions like ischemic stroke and, hypoxic stress stimuli activate microglia cells. Hypoxic stress is mediated by HIF-1α. Although HIF-1α has been implicated in the alteration of metabolic pathways, changes in microglia lipid metabolism during M1 activation of microglia induced by elevated HIF-1α levels are yet to be understood. This can also merit interest in the development of novel targets to mitigate chronic inflammation. Our study aims to elucidate the transcriptional regulation of metabolic pathways in microglia cells during HIF-1α mediated activation. To study the adaptations in the metabolic pathways we induced microglia activation, by activating HIF-1α. Here, we show that microglia cells activated in response to elevated HIF-1α require ongoing lipogenesis and fatty acid breakdown. Notably, autophagy is activated during the initial stages of microglia activation. Inhibition of autophagy in activated microglia affects their viability and phagocytic activity. Collectively, our study expands the understanding of the molecular link between autophagy, lipid metabolism, and inflammation during HIF-1α mediated microglial activation that can lead to the development of promising strategies for controlling maladaptive activation states of microglia responsible for neuroinflammation. Together, our findings suggest that the role of HIF-1α in regulating metabolic pathways during hypoxia in microglia is beyond optimization of glucose utilization and distinctly regulates lipid metabolism during pro-inflammatory activation.
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Affiliation(s)
- Ida Florance
- Center for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Seenivasan Ramasubbu
- Center for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
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25
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Deng J, Liu Q, Ye L, Wang S, Song Z, Zhu M, Qiang F, Zhou Y, Guo Z, Zhang W, Chen T. The Janus face of mitophagy in myocardial ischemia/reperfusion injury and recovery. Biomed Pharmacother 2024; 173:116337. [PMID: 38422659 DOI: 10.1016/j.biopha.2024.116337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/02/2024] Open
Abstract
In myocardial ischemia/reperfusion injury (MIRI), moderate mitophagy is a protective or adaptive mechanism because of clearing defective mitochondria accumulates during MIRI. However, excessive mitophagy lead to an increase in defective mitochondria and ultimately exacerbate MIRI by causing overproduction or uncontrolled production of mitochondria. Phosphatase and tensin homolog (PTEN)-induced kinase 1 (Pink1), Parkin, FUN14 domain containing 1 (FUNDC1) and B-cell leukemia/lymphoma 2 (BCL-2)/adenovirus E1B19KD interaction protein 3 (BNIP3) are the main mechanistic regulators of mitophagy in MIRI. Pink1 and Parkin are mitochondrial surface proteins involved in the ubiquitin-dependent pathway, while BNIP3 and FUNDC1 are mitochondrial receptor proteins involved in the non-ubiquitin-dependent pathway, which play a crucial role in maintaining mitochondrial homeostasis and mitochondrial quality. These proteins can induce moderate mitophagy or inhibit excessive mitophagy to protect against MIRI but may also trigger excessive mitophagy or insufficient mitophagy, thereby worsening the condition. Understanding the actions of these mitophagy mechanistic proteins may provide valuable insights into the pathological mechanisms underlying MIRI development. Based on the above background, this article reviews the mechanism of mitophagy involved in MIRI through Pink1/Parkin pathway and the receptor mediated pathway led by FUNDC1 and BNIP3, as well as the related drug treatment, aim to provide effective strategies for the prevention and treatment of MIRI.
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Affiliation(s)
- Jiaxin Deng
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Qian Liu
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Linxi Ye
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Shuo Wang
- State Key Laboratory of Modern Chinese Medicine, Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae for the Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhenyan Song
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Mingyan Zhu
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Fangfang Qiang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Yulin Zhou
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Zhen Guo
- Hunan Provincial Key Laboratory of the Fundamental and Clinical Research on Functional Nucleic Acid, Changsha Medical University, Changsha 410219, China; Hunan Provincial Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha Medical University, Changsha 410219, China; Hunan Provincial Key Laboratory of the TCM Agricultural Biogenomics, Changsha Medical University, Changsha 410219, China.
| | - Wei Zhang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China.
| | - Ting Chen
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, Hunan University of Chinese Medicine, Changsha 410208, China; National Key Laboratory Cultivation Base of Chinese Medicinal Powder & Innovative Medicinal Jointly Established by Province and Ministry, Changsha 410208, China.
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26
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Li Y, Wang HB, Cao JL, Zhang WJ, Wang HL, Xu CH, Li KP, Liu Y, Wang JR, Ha HL, Fu SJ, Yang L. Proteomic analysis of mitochondria associated membranes in renal ischemic reperfusion injury. J Transl Med 2024; 22:261. [PMID: 38461333 PMCID: PMC10925013 DOI: 10.1186/s12967-024-05021-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/23/2024] [Indexed: 03/11/2024] Open
Abstract
BACKGROUND The mitochondria and endoplasmic reticulum (ER) communicate via contact sites known as mitochondria associated membranes (MAMs). Many important cellular functions such as bioenergetics, mitophagy, apoptosis, and calcium signaling are regulated by MAMs, which are thought to be closely related to ischemic reperfusion injury (IRI). However, there exists a gap in systematic proteomic research addressing the relationship between these cellular processes. METHODS A 4D label free mass spectrometry-based proteomic analysis of mitochondria associated membranes (MAMs) from the human renal proximal tubular epithelial cell line (HK-2 cells) was conducted under both normal (N) and hypoxia/reperfusion (HR) conditions. Subsequent differential proteins analysis aimed to characterize disease-relevant signaling molecules. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis was applied to total proteins and differentially expressed proteins, encompassing Biological Process (BP), Cell Component (CC), Molecular Function (MF), and KEGG pathways. Further, Protein-Protein Interaction Network (PPI) exploration was carried out, leading to the identification of hub genes from differentially expressed proteins. Notably, Mitofusion 2 (MFN2) and BCL2/Adenovirus E1B 19-kDa interacting protein 3(BNIP3) were identified and subsequently validated both in vitro and in vivo. Finally, the impact of MFN2 on MAMs during hypoxia/reoxygenation was explored through regulation of gene expression. Subsequently, a comparative proteomics analysis was conducted between OE-MFN2 and normal HK-2 cells, providing further insights into the underlying mechanisms. RESULTS A total of 4489 proteins were identified, with 3531 successfully quantified. GO/KEGG analysis revealed that MAM proteins were primarily associated with mitochondrial function and energy metabolism. Differential analysis between the two groups showed that 688 proteins in HR HK-2 cells exhibited significant changes in expression level with P-value < 0.05 and HR/N > 1.5 or HR/N < 0.66 set as the threshold criteria. Enrichment analysis of differentially expressed proteins unveiled biological processes such as mRNA splicing, apoptosis regulation, and cell division, while molecular functions were predominantly associated with energy metabolic activity. These proteins play key roles in the cellular responses during HR, offering insights into the IRI mechanisms and potential therapeutic targets. The validation of hub genes MFN2 and BNIP3 both in vitro and vivo was consistent with the proteomic findings. MFN2 demonstrated a protective role in maintaining the integrity of mitochondria associated membranes (MAMs) and mitigating mitochondrial damage following hypoxia/reoxygenation injury, this protective effect may be associated with the activation of the PI3K/AKT pathway. CONCLUSIONS The proteins located in mitochondria associated membranes (MAMs) are implicated in crucial roles during renal ischemic reperfusion injury (IRI), with MFN2 playing a pivotal regulatory role in this context.
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Affiliation(s)
- Yi Li
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
- Department of Anesthesiology, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Hua-Bin Wang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Jin-Long Cao
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Wen-Jun Zhang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
- Department of Nephrology, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Hai-Long Wang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Chang-Hong Xu
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Kun-Peng Li
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Yi Liu
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Ji-Rong Wang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Hua-Lan Ha
- Department of Nephrology, The First People's Hospital of Lanzhou City, Lanzhou, 730030, Gansu, China
| | - Sheng-Jun Fu
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China
| | - Li Yang
- Department of Urology, Institute of Urology, Gansu Urological Clinical Center, Lanzhou University Second Hospital, Lanzhou, 730030, Gansu, China.
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27
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Zuo J, Ma S. Resveratrol-laden mesoporous silica nanoparticles regulate the autophagy and apoptosis via ROS-mediated p38-MAPK/HIF-1a /p53 signaling in hypertrophic scar fibroblasts. Heliyon 2024; 10:e24985. [PMID: 38370262 PMCID: PMC10867619 DOI: 10.1016/j.heliyon.2024.e24985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 02/20/2024] Open
Abstract
Background During the regression of hypertrophic scars, autophagy and apoptosis are the main ways of cell death. Recent investigations demonstrated effective inhibition of resveratrol on hypertrophic scar fibroblasts (HSFs). But its therapeutic value is limited by chemical instability and hydrophobicity, as well as the mechanism of its role in regulation of autophagy and apoptosis remains unknown. Aim of the study We prepared a mesoporous silica nanoparticle laden with resveratrol (MSN@Res) which can effectively improve the solubility and stability of resveratrol. The purpose of this study was to investigate whether MSN@Res regulate autophagy and apoptosis of HSFs via inhibition of ROS/p38/HIF-1α/p53 signaling axis, as to reveal its pharmacological action and target. Materials and methods Network pharmacology, molecular docking, and in vitro assays were carried out in this study. An in vitro model of fibroblasts cultivated in hypoxic and ischemic situations was established to simulate the scar in the proliferative phase. Results MSN@Res surpresses HSFs by reducing physiological autophagy and inducing apoptosis, autosis may be another cell death involed in this process. According to the network pharmacological analysis and molecular docking, the mechanism by which MSN@Res alleviates hypertrophic scar may be closely related to the MAPK signaling pathway. MSN@Res significantly downregulate the expression of HIF-1α and p53 through the inhibition of ROS induced p38-MAPK phosphorylation with corresponding changes in the expression of autophagy and apoptosis related protein. Conclusion MSN@Res is a novel drug delivery system with excellent chemical stability and drug release performance. It can inhibit protective autophagy of fibroblasts in hypoxic environment, and induce the apoptosis and autosis via the ROS -mediated p38-MAPK/HIF-1α/p53 signaling axis.
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Affiliation(s)
- Jun Zuo
- Department of Plastic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Shaolin Ma
- Department of Plastic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
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28
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Zhang Y, Li W, Yang Y, Zhang S, Yang H, Hao Y, Fang X, Du G, Shi J, Wu L, Wang J. AAA237, an SKP2 inhibitor, suppresses glioblastoma by inducing BNIP3-dependent autophagy through the mTOR pathway. Cancer Cell Int 2024; 24:69. [PMID: 38341584 PMCID: PMC10859026 DOI: 10.1186/s12935-023-03191-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 12/25/2023] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Glioblastoma (GBM) is the most common brain tumor with the worst prognosis. Temozolomide is the only first-line drug for GBM. Unfortunately, the resistance issue is a classic problem. Therefore, it is essential to develop new drugs to treat GBM. As an oncogene, Skp2 is involved in the pathogenesis of various cancers including GBM. In this study, we investigated the anticancer effect of AAA237 on human glioblastoma cells and its underlying mechanism. METHODS CCK-8 assay was conducted to evaluate IC50 values of AAA237 at 48, and 72 h, respectively. The Cellular Thermal Shift Assay (CETSA) was employed to ascertain the status of Skp2 as an intrinsic target of AAA237 inside the cellular milieu. The EdU-DNA synthesis test, Soft-Agar assay and Matrigel assay were performed to check the suppressive effects of AAA237 on cell growth. To identify the migration and invasion ability of GBM cells, transwell assay was conducted. RT-qPCR and Western Blot were employed to verify the level of BNIP3. The mRFP-GFP-LC3 indicator system was utilized to assess alterations in autophagy flux and investigate the impact of AAA237 on the dynamic fusion process between autophagosomes and lysosomes. To investigate the effect of compound AAA237 on tumor growth in vivo, LN229 cells were injected into the brains of mice in an orthotopic model. RESULTS AAA237 could inhibit the growth of GBM cells in vitro. AAA237 could bind to Skp2 and inhibit Skp2 expression and the degradation of p21 and p27. In a dose-dependent manner, AAA237 demonstrated the ability to inhibit colony formation, migration, and invasion of GBM cells. AAA237 treatment could upregulate BNIP3 as the hub gene and therefore induce BNIP3-dependent autophagy through the mTOR pathway whereas 3-MA can somewhat reverse this process. In vivo, the administration of AAA237 effectively suppressed the development of glioma tumors with no side effects. CONCLUSION Compound AAA237, a novel Skp2 inhibitor, inhibited colony formation, migration and invasion of GBM cells in a dose-dependent manner and time-dependent manner through upregulating BNIP3 as the hub gene and induced BNIP3-dependent autophagy through the mTOR pathway therefore it might be a viable therapeutic drug for the management of GBM.
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Affiliation(s)
- Yizhi Zhang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Wan Li
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Yihui Yang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Sen Zhang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Hong Yang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Yue Hao
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Xu Fang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Guanhua Du
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Jianyou Shi
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, Sichuan, China.
| | - Lianqiu Wu
- Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
| | - Jinhua Wang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China.
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
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Lan J, Wang J, Wang S, Wang J, Huang S, Wang Y, Ma Y. The Activation of GABA AR Alleviated Cerebral Ischemic Injury via the Suppression of Oxidative Stress, Autophagy, and Apoptosis Pathways. Antioxidants (Basel) 2024; 13:194. [PMID: 38397792 PMCID: PMC10886019 DOI: 10.3390/antiox13020194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/25/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Ischemic stroke is a devastating disease leading to neurologic impairment. Compounding the issue is the very limited array of available interventions. The activation of a γ-aminobutyric acid (GABA) type A receptor (GABAAR) has been reported to produce neuroprotective properties during cerebral ischemia, but its mechanism of action is not yet fully understood. Here, in a rat model of photochemically induced cerebral ischemia, we found that muscimol, a GABAAR agonist, modulated GABAergic signaling, ameliorated anxiety-like behaviors, and attenuated neuronal damage in rats suffering cerebral ischemia. Moreover, GABAAR activation improved brain antioxidant levels, reducing the accumulation of oxidative products, which was closely associated with the NO/NOS pathway. Notably, the inhibition of autophagy markedly relieved the neuronal insult caused by cerebral ischemia. We further established an oxygen-glucose deprivation (OGD)-induced PC12 cell injury model. Both in vivo and in vitro experiments demonstrated that GABAAR activation obviously suppressed autophagy by regulating the AMPK-mTOR pathway. Additionally, GABAAR activation inhibited apoptosis through inhibiting the Bax/Bcl-2 pathway. These data suggest that GABAAR activation exerts neuroprotective effects during cerebral ischemia through improving oxidative stress and inhibiting autophagy and apoptosis. Our findings indicate that GABAAR serves as a target for treating cerebral ischemia and highlight the GABAAR-mediated autophagy signaling pathway.
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Affiliation(s)
- Jing Lan
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jiaqi Wang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shujing Wang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Jia Wang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Sijuan Huang
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yazhou Wang
- Department of Neurobiology, School of Basic Medicine, The Fourth Military Medical University, Xi’an 710032, China
| | - Yunfei Ma
- National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
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Tong F, Sun Z. Identification and validation of potential biomarkers for atrial fibrillation based on integrated bioinformatics analysis. Front Cell Dev Biol 2024; 11:1190273. [PMID: 38274270 PMCID: PMC10808641 DOI: 10.3389/fcell.2023.1190273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 12/29/2023] [Indexed: 01/27/2024] Open
Abstract
Background: Globally, the most common form of arrhythmias is atrial fibrillation (AF), which causes severe morbidity, mortality, and socioeconomic burden. The application of machine learning algorithms in combination with weighted gene co-expression network analysis (WGCNA) can be used to screen genes, therefore, we aimed to screen for potential biomarkers associated with AF development using this integrated bioinformatics approach. Methods: On the basis of the AF endocardium gene expression profiles GSE79768 and GSE115574 from the Gene Expression Omnibus database, differentially expressed genes (DEGs) between AF and sinus rhythm samples were identified. DEGs enrichment analysis and transcription factor screening were then performed. Hub genes for AF were screened using WGCNA and machine learning algorithms, and the diagnostic accuracy was assessed by the receiver operating characteristic (ROC) curves. GSE41177 was used as the validation set for verification. Subsequently, we identified the specific signaling pathways in which the key biomarkers were involved, using gene set enrichment analysis and reverse prediction of mRNA-miRNA interaction pairs. Finally, we explored the associations between the hub genes and immune microenvironment and immune regulation. Results: Fifty-seven DEGs were identified, and the two hub genes, hypoxia inducible factor 1 subunit alpha inhibitor (HIF1AN) and mitochondrial inner membrane protein MPV17 (MPV17), were screened using WGCNA combined with machine learning algorithms. The areas under the receiver operating characteristic curves for MPV17 and HIF1AN validated that two genes predicted AF development, and the differential expression of the hub genes was verified in the external validation dataset. Enrichment analysis showed that MPV17 and HIF1AN affect mitochondrial dysfunction, oxidative stress, gap junctions, and other signaling pathway functions. Immune cell infiltration and immunomodulatory correlation analyses showed that MPV17 and HIF1AN are strongly correlated with the content of immune cells and significantly correlated with HLA expression. Conclusion: The identification of hub genes associated with AF using WGCNA combined with machine learning algorithms and their correlation with immune cells and immune gene expression can elucidate the molecular mechanisms underlying AF occurrence. This may further identify more accurate and effective biomarkers and therapeutic targets for the diagnosis and treatment of AF.
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Affiliation(s)
| | - Zhijun Sun
- Department of Cardiology, Shengjing Hospital of China Medical University, Shenyang, China
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31
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Liang H, Yin G, Shi G, Liu Z, Liu X, Li J. Echinacoside regulates PI3K/AKT/HIF-1α/VEGF cross signaling axis in proliferation and apoptosis of breast cancer. Anal Biochem 2024; 684:115360. [PMID: 37865269 DOI: 10.1016/j.ab.2023.115360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/07/2023] [Accepted: 10/18/2023] [Indexed: 10/23/2023]
Abstract
CONTEXT Echinacoside (ECH) is a natural anti-cancer compound and is of great value in cancer treatment. However, the mechanism underlying this effect on breast cancer (BC) was unclear. OBJECTIVE To explore the mechanism of ECH treating BC by network pharmacology and experimental validation. MATERIALS & METHODS Several databases were searched to screen potential targets of ECH and obtain information on targets related to BC. STRING was applied to construct a Protein-protein interaction (PPI) network. DAVID was applied for Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis. Gene Expression Profiling Interactive Analysis (GEPIA) was searched for the relationship between the expression profile and overall survival of major targets in normal breast and BC tissues. Finally, the results of network pharmacology analysis were validated by experiments. RESULTS Seventeen targets of ECH overlapped with targets in BC. Ten hub targets were determined through PPI. By GO and KEGG analysis 15 entries and 25 pathways were obtained, in which phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), hypoxia inducible factor-1 (HIF-1) and vascular endothelial growth factor (VEGF) played greater roles. Validation of key targets in the GEPIA database showed that PIK3R1 and PIK3CD remained consistent with the results of the study. Experiments in vitro showed ECH inhibited proliferation, induced apoptosis and reduced mRNA levels and protein expression of PI3K, AKT, hypoxia inducible factor-1α (HIF-1α) and vascular endothelial growth factor A (VEGFA) in MCF-7 cells. Furthermore, experiments in vivo revealed that ECH significantly reduced tumor growth, promoted apoptosis and decreased the related mRNA levels and protein expression, suggesting ECH works on BC by regulating PI3K/AKT/HIF-1α/VEGF signaling pathway. DISCUSSION & CONCLUSION In summary, ECH played an important role in anti-BC by regulating PI3K/AKT/HIF-1α/VEGF signaling pathway. Furthermore, ECH had multi-target and multi-pathway effects, which may be a promising natural compound for treating BC.
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Affiliation(s)
- Hongyi Liang
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Guoliang Yin
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Guangxi Shi
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Zhiyong Liu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China
| | - Xiaofei Liu
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China.
| | - Jingwei Li
- Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, People's Republic of China.
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Zhang Q, Gou F, Shi P, Xu Z, Yan Z, He M, Yin X, He Y, Zhang J. Angiotensin-converting enzyme inhibitors provide a protective effect on hypoxia-induced injury in human coronary artery endothelial cells via Nrf2 signaling and PLVAP. Clin Hemorheol Microcirc 2024; 87:141-170. [PMID: 38339922 DOI: 10.3233/ch-232007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
BACKGROUND Angiotensin-converting enzyme inhibitors (ACEIs) were reported to protect from hypoxia-induced oxidative stress in coronary endothelial cells (CECs) after acute myocardial infarction (AMI). Nrf2 shows a protective effect in hypoxia-induced CECs after AMI. Plasmalemma vesicle-associated protein (PLVAP) plays a pivotal role in angiogenesis after AMI. AIM To explore the protective effect of ACEIs and the involved mechanisms under hypoxia challenge. METHODS Human coronary endothelial cells (HCAECs) were used to establish hypoxia-induced oxidative stress injury in vitro. Flow cytometry was used to evaluate the protective effect of ACEI on hypoxia conditions.ET-1, NO, ROS, and VEGF were detected by ELISA. HO-1, Nrf2, and Keap-1, the pivotal member in the Nrf2 signaling pathway, eNOS and PLVAP were detected in HEAECs treated with ACEI by immunofluorescence, qPCR, and western blotting. RESULTS The hypoxia ACEI or Nrf2 agonist groups showed higher cell viability compared with the hypoxia control group at 24 (61.75±1.16 or 61.23±0.59 vs. 44.24±0.58, both P < 0.05) and 48 h (41.85±1.19 or 59.64±1.13 vs. 22.98±0.25, both P < 0.05). ACEI decreased the levels of ET-1 and ROS under hypoxia challenge at 24 and 48 h (all P < 0.05); ACEI increased the VEGF and NO levels (all P < 0.05). ACEI promoted the expression level of eNOS, HO-1, Nrf2 and PLVAP but inhibited Keap-1 expression at the mRNA and protein levels (all P < 0.05). Blockade of the Nrf2 signaling pathway significantly decreased the expression level of PLVAP. CONCLUSION ACEI protects hypoxia-treated HEAECs by activating the Nrf2 signaling pathway and upregulating the expression of PLVAP.
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Affiliation(s)
- Qiubing Zhang
- Tianjin Medical University, Tianjin, China
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Fang Gou
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Ping Shi
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Zhe Xu
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Zhitao Yan
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Mingfang He
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Xiaohong Yin
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Yuanjun He
- Department of Cardiology, Guang Yuan Central Hospital, Guang Yuan, China
| | - Jun Zhang
- Department of Cardiology, Cangzhou Central Hospital, Tianjin Medical University, Cangzhou, China
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Ding X, Zhu C, Wang W, Li M, Ma C, Gao B. SIRT1 is a regulator of autophagy: Implications for the progression and treatment of myocardial ischemia-reperfusion. Pharmacol Res 2024; 199:106957. [PMID: 37820856 DOI: 10.1016/j.phrs.2023.106957] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 09/09/2023] [Accepted: 10/08/2023] [Indexed: 10/13/2023]
Abstract
SIRT1 is a highly conserved nicotinamide adenine dinucleotide (NAD+)-dependent histone deacetylase. It is involved in the regulation of various pathophysiological processes, including cell proliferation, survival, differentiation, autophagy, and oxidative stress. Therapeutic activation of SIRT1 protects the heart and cardiomyocytes from pathology-related stress, particularly myocardial ischemia/reperfusion (I/R). Autophagy is an important metabolic pathway for cell survival during energy or nutrient deficiency, hypoxia, or oxidative stress. Autophagy is a double-edged sword in myocardial I/R injury. The activation of autophagy during the ischemic phase removes excess metabolic waste and helps ensure cardiomyocyte survival, whereas excessive autophagy during reperfusion depletes the cellular components and leads to autophagic cell death. Increasing research on I/R injury has indicated that SIRT1 is involved in the process of autophagy and regulates myocardial I/R. SIRT1 regulates autophagy through various pathways, such as the deacetylation of FOXOs, ATGs, and LC3. Recent studies have confirmed that SIRT1-mediated autophagy plays different roles at different stages of myocardial I/R injury. By targeting the mechanism of SIRT1-mediated autophagy at different stages of I/R injury, new small-molecule drugs, miRNA activators, or blockers can be developed. For example, resveratrol, sevoflurane, quercetin, and melatonin in the ischemic stage, coptisine, curcumin, berberine, and some miRNAs during reperfusion, were involved in regulating the SIRT1-autophagy axis, exerting a cardioprotective effect. Here, we summarize the possible mechanisms of autophagy regulation by SIRT1 in myocardial I/R injury and the related molecular drug applications to identify strategies for treating myocardial I/R injury.
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Affiliation(s)
- Xiaoqing Ding
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Chenyu Zhu
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Wenhong Wang
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Mengying Li
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Chunwei Ma
- School of Exercise and Health, Shanghai University of Sport, Shanghai 200438, China
| | - Binghong Gao
- School of Athletic Performance, Shanghai University of Sport, Shanghai 200438, China.
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Cheng H, Villahoz BF, Ponzio RD, Aschner M, Chen P. Signaling Pathways Involved in Manganese-Induced Neurotoxicity. Cells 2023; 12:2842. [PMID: 38132161 PMCID: PMC10742340 DOI: 10.3390/cells12242842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Manganese (Mn) is an essential trace element, but insufficient or excessive bodily amounts can induce neurotoxicity. Mn can directly increase neuronal insulin and activate insulin-like growth factor (IGF) receptors. As an important cofactor, Mn regulates signaling pathways involved in various enzymes. The IGF signaling pathway plays a protective role in the neurotoxicity of Mn, reducing apoptosis in neurons and motor deficits by regulating its downstream protein kinase B (Akt), mitogen-activated protein kinase (MAPK), and mammalian target of rapamycin (mTOR). In recent years, some new mechanisms related to neuroinflammation have been shown to also play an important role in Mn-induced neurotoxicity. For example, DNA-sensing receptor cyclic GMP-AMP synthase (cCAS) and its downstream signal efficient interferon gene stimulator (STING), NOD-like receptor family pyrin domain containing 3(NLRP3)-pro-caspase1, cleaves to the active form capase1 (CASP1), nuclear factor κB (NF-κB), sirtuin (SIRT), and Janus kinase (JAK) and signal transducers and activators of the transcription (STAT) signaling pathway. Moreover, autophagy, as an important downstream protein degradation pathway, determines the fate of neurons and is regulated by these upstream signals. Interestingly, the role of autophagy in Mn-induced neurotoxicity is bidirectional. This review summarizes the molecular signaling pathways of Mn-induced neurotoxicity, providing insight for further understanding of the mechanisms of Mn.
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Affiliation(s)
| | | | | | | | - Pan Chen
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (H.C.); (B.F.V.); (R.D.P.); (M.A.)
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Liu J, Liu C, Chen H, Cen H, Yang H, Liu P, Liu F, Ma L, Chen Q, Wang L. Tongguan capsule for treating myocardial ischemia-reperfusion injury: integrating network pharmacology and mechanism study. PHARMACEUTICAL BIOLOGY 2023; 61:437-448. [PMID: 36789620 PMCID: PMC9937005 DOI: 10.1080/13880209.2023.2175877] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/11/2022] [Accepted: 01/29/2023] [Indexed: 06/12/2023]
Abstract
CONTEXT Although Tongguan capsule (TGC) is used in the treatment of coronary atherosclerotic disease, the exact mechanism remains unclear. OBJECTIVE Network pharmacology and experimental validation were applied to examine the mechanism of TGC for treating myocardial ischemia-reperfusion injury (MIRI). MATERIALS AND METHODS The components and candidate targets were searched based on various databases such as TCMSP, TCMID, BATMAN-TCM. The binding ability was determined by molecular docking. The ischemia-reperfusion (I/R) model was constructed by ligating the left anterior descending (LAD) coronary artery. APOE-/- mice were divided into three groups (n = 6): Sham group, I/R group, and TGC group (1 g/kg/d). To further verification, HCAEC cells were subjected to hypoxia-reoxygenation (H/R) to establish in vitro model. RESULTS The compounds, such as quercetin, luteolin, tanshinone IIA, kaempferol and bifendate, were obtained after screening. The affinity values of the components with GSK-3β, mTOR, Beclin-1, and LC3 were all <-5 kcal/mol. In vivo, TGC improved LVEF and FS, reducing infarct size. In vitro, Hoechst 33258 staining result showed TGC inhibited apoptosis. Compare with the H/R model, TGC treatment increased the levels of GSK-3β, LC3, and Beclin1, while decreasing the expression of mTOR and p62 (p < 0.05). DISCUSSION AND CONCLUSION The findings revealed that TGC exerted a cardioprotective effect by up regulating autophagy-related proteins through the mTOR pathway, which may be a therapeutic option for MIRI. However, there are still some limitations in this research. It is necessary to search more databases to obtain information and further demonstrated through randomized controlled trials for generalization.
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Affiliation(s)
- Jiantao Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Shunde Hospital of Guangzhou University of Chinese Medicine, Foshan, China
| | - Chunping Liu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou, China
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Huiqi Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Huan Cen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hailong Yang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peijian Liu
- Shunde Hospital of Guangzhou University of Chinese Medicine, Foshan, China
| | - Fang Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liuling Ma
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Quanfu Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lei Wang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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Ornelas A, Welch N, Countess JA, Zhou L, Wang RX, Dowdell AS, Colgan SP. Mimicry of microbially-derived butyrate reveals templates for potent intestinal epithelial HIF stabilizers. Gut Microbes 2023; 15:2267706. [PMID: 37822087 PMCID: PMC10572066 DOI: 10.1080/19490976.2023.2267706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023] Open
Abstract
Microbiota-derived short-chain fatty acids, including butyrate (BA), have multiple beneficial health effects. In the colon, BA concentrations range from 10 to 20 mM and up to 95% is utilized as energy by the mucosa. BA plays a key role in epithelial-barrier regulation and anti-inflammation, and regulates cell growth and differentiation, at least in part, due to its direct influence on stabilization of the transcription factor hypoxia-inducible factor (HIF). It remains unclear whether BA is the optimal metabolite for such a response. In this study, we explored metabolite mimicry as an attractive strategy for the biological response to HIF. We discovered that 4-mercapto butyrate (MBA) stabilizes HIF more potently and has a longer biological half-life than BA in intestinal epithelial cells (IECs). We validated the MBA-mediated HIF transcriptional activity through the induction of classic HIF gene targets in IECs and enhanced epithelial barrier formation in vitro. In-vivo studies with MBA revealed systemic HIF stabilization in mice, which was more potent than its parent BA metabolite. Mechanistically, we found that MBA enhances oxygen consumption and that the sulfhydryl group is essential for HIF stabilization, but exclusively as a four-carbon SCFA. These findings reveal a combined biochemical mechanism for HIF stabilization and provide a foundation for the discovery of potent metabolite-like scaffolds.
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Affiliation(s)
- Alfredo Ornelas
- Mucosal Inflammation Program and Division of Gastroenterology and Hepatology, University of Colorado, Aurora, CO, USA
| | - Nichole Welch
- Mucosal Inflammation Program and Division of Gastroenterology and Hepatology, University of Colorado, Aurora, CO, USA
- Department of Medicine, Rocky Mountain Veterans Association, Aurora, CO, USA
| | - Jacob A. Countess
- Mucosal Inflammation Program and Division of Gastroenterology and Hepatology, University of Colorado, Aurora, CO, USA
| | - Liheng Zhou
- Mucosal Inflammation Program and Division of Gastroenterology and Hepatology, University of Colorado, Aurora, CO, USA
| | - Ruth X. Wang
- Mucosal Inflammation Program and Division of Gastroenterology and Hepatology, University of Colorado, Aurora, CO, USA
| | - Alexander S. Dowdell
- Mucosal Inflammation Program and Division of Gastroenterology and Hepatology, University of Colorado, Aurora, CO, USA
- Department of Medicine, Rocky Mountain Veterans Association, Aurora, CO, USA
| | - Sean P. Colgan
- Mucosal Inflammation Program and Division of Gastroenterology and Hepatology, University of Colorado, Aurora, CO, USA
- Department of Medicine, Rocky Mountain Veterans Association, Aurora, CO, USA
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Corradi F, Masini G, Bucciarelli T, De Caterina R. Iron deficiency in myocardial ischaemia: molecular mechanisms and therapeutic perspectives. Cardiovasc Res 2023; 119:2405-2420. [PMID: 37722377 DOI: 10.1093/cvr/cvad146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 05/14/2023] [Accepted: 07/10/2023] [Indexed: 09/20/2023] Open
Abstract
Systemic iron deficiency (SID), even in the absence of anaemia, worsens the prognosis and increases mortality in heart failure (HF). Recent clinical-epidemiological studies, however, have shown that a myocardial iron deficiency (MID) is frequently present in cases of severe HF, even in the absence of SID and without anaemia. In addition, experimental studies have shown a poor correlation between the state of systemic and myocardial iron. MID in animal models leads to severe mitochondrial dysfunction, alterations of mitophagy, and mitochondrial biogenesis, with profound alterations in cardiac mechanics and the occurrence of a fatal cardiomyopathy, all effects prevented by intravenous administration of iron. This shifts the focus to the myocardial state of iron, in the absence of anaemia, as an important factor in prognostic worsening and mortality in HF. There is now epidemiological evidence that SID worsens prognosis and mortality also in patients with acute and chronic coronary heart disease and experimental evidence that MID aggravates acute myocardial ischaemia as well as post-ischaemic remodelling. Intravenous administration of ferric carboxymaltose (FCM) or ferric dextrane improves post-ischaemic adverse remodelling. We here review such evidence, propose that MID worsens ischaemia/reperfusion injury, and discuss possible molecular mechanisms, such as chronic hyperactivation of HIF1-α, exacerbation of cytosolic and mitochondrial calcium overload, amplified increase of mitochondrial [NADH]/[NAD+] ratio, and depletion of energy status and NAD+ content with inhibition of sirtuin 1-3 activity. Such evidence now portrays iron metabolism as a core factor not only in HF but also in myocardial ischaemia.
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Affiliation(s)
- Francesco Corradi
- Department of Medicine and Aging Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Gabriele Masini
- Chair and Postgraduate School of Cardiology, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Tonino Bucciarelli
- Department of Medicine and Aging Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Raffaele De Caterina
- Chair and Postgraduate School of Cardiology, University of Pisa, Via Savi 10, 56126, Pisa, Italy
- Fondazione VillaSerena per la Ricerca, Viale L. Petruzzi 42, 65013, Città Sant'Angelo, Pescara, Italy
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Niu N, Miao H, Ren H. Effect of miR-182-5p on apoptosis in myocardial infarction. Heliyon 2023; 9:e21524. [PMID: 38034598 PMCID: PMC10685254 DOI: 10.1016/j.heliyon.2023.e21524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 12/02/2023] Open
Abstract
Objective This study aimed to delineate the diagnostic significance of miR-182-5p by investigating its influence on myocardial apoptosis and function, employing both in vivo and in vitro myocardial infarction models. Methods A rat myocardial infarction model was established. Myocardial infarction area was detected using the 2,3,5-chlorotriphenyltetrazolium (TTC) method, myocardial enzyme spectrums were measured using enzyme-linked immunosorbent assay (ELISA), myocardial structure was detected by hematoxylin and eosin (HE) staining, myocardial apoptosis was detected using the TUNEL method, and expression levels of miR-182-5p and apoptosis-related molecules were detected using real-time fluorescence quantitative PCR (qPCR) and Western blot. miR-182-5p mimics and inhibitor were transfected into rat H9C2 cardiomyocytes and mouse HL-1 cardiomyocytes to establish a hypoxia model. Cardiomyocyte viability was detected using the CCK-8 method, expression levels of apoptosis-related indicators were detected using Western blot, and caspase-3/7 activity was detected using a caspase-3/7 activity detection kit. AAV9 adeno-associated virus was used to construct an miR-182-5p overexpression virus, which was injected into mice through the tail vein to create a mouse myocardial infarction model. TTC, ELISA, HE staining, echocardiography, real-time fluorescence qPCR, and Western blot methods were used to detect the effects of AAV9-miR-182-5p on myocardial injury, myocardial function, and myocardial apoptosis levels in myocardial infarction. Results The rat model displayed reduced miR-182-5p expression concurrent with an increase in apoptosis. The in vitro H9C2 and HL-1 hypoxia models revealed that miR-182-5p augmented the hypoxia-induced decrease in myocardial cell viability, suppressed Bcl-2 expression, and increased Bax, Bnip3, and caspase-3/7 activity levels. The injection of AAV9-miR-182-5p significantly exacerbated myocardial tissue damage, impaired myocardial function, and enhanced apoptosis. Conclusion miR-182-5p escalates myocardial injury during myocardial infarction by fostering apoptosis. Interventions that aim to reduce miR-182-5p levels might be crucial in halting the progression of myocardial infarction.
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Affiliation(s)
- Nan Niu
- College of Physics and Optoelectronic Engineering, Canghai Campus of Shenzhen University, Shenzhen, Guangdong, 518060, PR China
| | - Huangtai Miao
- Coronary Heart Disease Center, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, PR China
| | - Hongmei Ren
- Department of Cardiovascular Medicine, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia Hui Autonomous Region, 750021, PR China
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Jiang M, Fan X, Wang Y, Sun X. Effects of hypoxia in cardiac metabolic remodeling and heart failure. Exp Cell Res 2023; 432:113763. [PMID: 37726046 DOI: 10.1016/j.yexcr.2023.113763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 09/21/2023]
Abstract
Aerobic cellular respiration requires oxygen, which is an essential part of cardiomyocyte metabolism. Thus, oxygen is required for the physiologic metabolic activities and development of adult hearts. However, the activities of metabolic pathways associated with hypoxia in cardiomyocytes (CMs) have not been conclusively described. In this review, we discuss the role of hypoxia in the development of the hearts metabolic system, and the metabolic remodeling associated with the hypoxic adult heart. Hypoxia-inducible factors (HIFs), the signature transcription factors in hypoxic environments, is also investigated for their potential to modulate hypoxia-induced metabolic changes. Metabolic remodeling existing in hypoxic hearts have also been shown to occur in chronic failing hearts, implying that novel therapeutic options for heart failure (HF) may exist from the hypoxic perspective. The pressure overload-induced HF and diabetes-induced HF are also discussed to demonstrate the effects of HIF factor-related pathways to control the metabolic remodeling of failing hearts.
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Affiliation(s)
- Mingzhou Jiang
- Department of Cardiothoracic Surgery, Huashan Hospital of Fudan University, Shanghai, China
| | - Xi Fan
- Department of Cardiothoracic Surgery, Huashan Hospital of Fudan University, Shanghai, China
| | - Yiqing Wang
- Department of Cardiothoracic Surgery, Huashan Hospital of Fudan University, Shanghai, China.
| | - Xiaotian Sun
- Department of Cardiothoracic Surgery, Huashan Hospital of Fudan University, Shanghai, China.
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Hao XN, Zhao N, Huang JM, Li SY, Wei D, Pu N, Peng GH, Tao Y. Intravitreal Injection of ZYAN1 Restored Autophagy and Alleviated Oxidative Stress in Degenerating Retina via the HIF-1α/BNIP3 Pathway. Antioxidants (Basel) 2023; 12:1914. [PMID: 38001767 PMCID: PMC10669006 DOI: 10.3390/antiox12111914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/06/2023] [Accepted: 10/08/2023] [Indexed: 11/26/2023] Open
Abstract
Mitochondrial autophagy plays a contributary role in the pathogenesis of retina degeneration (RD). ZYAN1 is a novel proline hydroxylase domain (PHD) inhibitor that can enhance the expression of hypoxia-inducible factor 1-alpha (HIF-1α). This study investigated whether ZYAN1 could alleviate progressive photoreceptor loss and oxidative damage in a pharmacologically induced RD model via the modulation of mitophagy. ZYAN1 was injected into the vitreous body of the RD model, and the retinal autophagy level was analyzed. The therapeutic effects of ZYAN1 were evaluated via a function examination, a morphological assay, in situ reactive oxygen species (ROS) detection, and an immunofluorescence assay. It was shown that the thickness of the outer nuclear layer (ONL) increased significantly, and visual function was efficiently preserved via ZYAN1 treatment. The mitochondria structure of photoreceptors was more complete in the ZYAN1-treated mice, and the number of autophagosomes also increased significantly. Membrane disc shedding and ROS overproduction were alleviated after ZYAN1 treatment, and the axonal cilia were more structurally intact. A Western blot analysis showed that the expression levels of the autophagy-related proteins LC3-B, Beclin-1, and ATG5 increased significantly after ZYAN1 treatment, while the expression of P62 was down-regulated. Moreover, the expression levels of HIF-1α and BNIP3 were up-regulated after ZYAN1 treatment. Therefore, an intravitreal injection of ZYAN1 can act as part of the pharmacologic strategy to modulate mitophagy and alleviate oxidative stress in RD. These findings enrich our knowledge of RD pathology and provide insights for the discovery of a therapeutic molecule.
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Affiliation(s)
| | | | | | | | | | | | - Guang-Hua Peng
- Department of Physiology and Neurobiology, Laboratory of Visual Cell Differentiation and Regulation, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China; (X.-N.H.); (N.Z.); (J.-M.H.); (S.-Y.L.); (D.W.); (N.P.)
| | - Ye Tao
- Department of Physiology and Neurobiology, Laboratory of Visual Cell Differentiation and Regulation, School of Basic Medical Sciences, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, China; (X.-N.H.); (N.Z.); (J.-M.H.); (S.-Y.L.); (D.W.); (N.P.)
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Gao X, Hu W, Qian D, Bai X, He H, Li L, Sun S. The Mechanisms of Ferroptosis Under Hypoxia. Cell Mol Neurobiol 2023; 43:3329-3341. [PMID: 37458878 PMCID: PMC10477166 DOI: 10.1007/s10571-023-01388-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 07/06/2023] [Indexed: 09/05/2023]
Abstract
Ferroptosis is a new form of programmed cell death, which is characterized by the iron-dependent accumulation of lipid peroxidation and increase of ROS, resulting in oxidative stress and cell death. Iron, lipid, and multiple signaling pathways precisely control the occurrence and implementation of ferroptosis. The pathways mainly include Nrf2/HO-1 signaling pathway, p62/Keap1/Nrf2 signaling pathway. Activating p62/Keap1/Nrf2 signaling pathway inhibits ferroptosis. Nrf2/HO-1 signaling pathway promotes ferroptosis. Furthermore, some factors also participate in the occurrence of ferroptosis under hypoxia, such as HIF-1, NCOA4, DMT1. Meanwhile, ferroptosis is related with hypoxia-related diseases, such as MIRI, cancers, and AKI. Accordingly, ferroptosis appears to be a therapeutic target for hypoxia-related diseases.
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Affiliation(s)
- Xin Gao
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China
- 2020 Clinical Medicine Class 6, Kunming Medical University, Kunming, 650500, China
| | - Wei Hu
- Department of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, 650032, China
| | - Dianlun Qian
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Kunming Medical University, Kunming, 650032, China
| | - Xiangfeng Bai
- Department of Cardiothoracic Surgery, First Affiliated Hospital, Kunming Medical University, Kunming, 650032, China
| | - Huilin He
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China
| | - Lin Li
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China
| | - Shibo Sun
- Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital, Kunming Medical University, No. 295, Xichang Road, Wuhua District, Kunming, 650032, China.
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Pan C, Ai C, Liang L, Zhang B, Li Q, Pu L, Wang Z, Liu W, Chen Z, Liu H, Wang X. Sestrin2 protects against hypoxic nerve injury by regulating mitophagy through SESN2/AMPK pathway. Front Mol Biosci 2023; 10:1266243. [PMID: 37808523 PMCID: PMC10551140 DOI: 10.3389/fmolb.2023.1266243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 09/11/2023] [Indexed: 10/10/2023] Open
Abstract
Hypoxia induced by high altitude can lead to severe neurological dysfunction. Mitophagy is known to play a crucial role in hypoxic nerve injury. However, the regulatory mechanism of mitophagy during this injury remains unclear. Recent studies have highlighted the role of Sestrin2 (SESN2), an evolutionarily conserved stress-inducible protein against acute hypoxia. Our study demonstrated that hypoxia treatment increased SESN2 expression and activated mitophagy in PC12 cells. Furthermore, the knock-out of Sesn2 gene led to a significant increase in mitochondrial membrane potential and ATP concentrations, which protected the PC12 cells from hypoxic injury. Although the AMPK/mTOR pathway was significantly altered under hypoxia, it does not seem to participate in mitophagy regulation. Instead, our data suggest that the mitophagy receptor FUNDC1 plays a vital role in hypoxia-induced mitophagy. Moreover, SESN2 may function through synergistic regulation with other pathways, such as SESN2/AMPK, to mediate cellular adaptation to hypoxia, including the regulation of mitophagy in neuron cells. Therefore, SESN2 plays a critical role in regulating neural cell response to hypoxia. These findings offer valuable insights into the underlying molecular mechanisms governing the regulation of mitophagy under hypoxia and further highlight the potential of SESN2 as a promising therapeutic target for hypoxic nerve injury.
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Affiliation(s)
- Cunyao Pan
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
- School of Public Health, Lanzhou University, Lanzhou, China
- Chengdu Center for Disease Prevention and Control, Chengdu, China
| | - Chongyi Ai
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Lanlan Liang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Baoyi Zhang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Qionglin Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Lingling Pu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Zirou Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Weili Liu
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Zhaoli Chen
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
| | - Hui Liu
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Xinxing Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin, China
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Geng Y, Hu Y, Zhang F, Tuo Y, Ge R, Bai Z. Mitochondria in hypoxic pulmonary hypertension, roles and the potential targets. Front Physiol 2023; 14:1239643. [PMID: 37645564 PMCID: PMC10461481 DOI: 10.3389/fphys.2023.1239643] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/03/2023] [Indexed: 08/31/2023] Open
Abstract
Mitochondria are the centrol hub for cellular energy metabolisms. They regulate fuel metabolism by oxygen levels, participate in physiological signaling pathways, and act as oxygen sensors. Once oxygen deprived, the fuel utilizations can be switched from mitochondrial oxidative phosphorylation to glycolysis for ATP production. Notably, mitochondria can also adapt to hypoxia by making various functional and phenotypes changes to meet the demanding of oxygen levels. Hypoxic pulmonary hypertension is a life-threatening disease, but its exact pathgenesis mechanism is still unclear and there is no effective treatment available until now. Ample of evidence indicated that mitochondria play key factor in the development of hypoxic pulmonary hypertension. By hypoxia-inducible factors, multiple cells sense and transmit hypoxia signals, which then control the expression of various metabolic genes. This activation of hypoxia-inducible factors considered associations with crosstalk between hypoxia and altered mitochondrial metabolism, which plays an important role in the development of hypoxic pulmonary hypertension. Here, we review the molecular mechanisms of how hypoxia affects mitochondrial function, including mitochondrial biosynthesis, reactive oxygen homeostasis, and mitochondrial dynamics, to explore the potential of improving mitochondrial function as a strategy for treating hypoxic pulmonary hypertension.
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Affiliation(s)
- Yumei Geng
- Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Research Center for High Altitude Medicine, Qinghai University, Xining, China
- Department of Respiratory and Critical Care Medicine, Qinghai Provincial People’s Hospital, Xining, China
| | - Yu Hu
- Department of Pharmacy, Qinghai Provincial Traffic Hospital, Xining, China
| | - Fang Zhang
- Department of Respiratory and Critical Care Medicine, Qinghai Provincial People’s Hospital, Xining, China
| | - Yajun Tuo
- Department of Respiratory and Critical Care Medicine, Qinghai Provincial People’s Hospital, Xining, China
| | - Rili Ge
- Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Research Center for High Altitude Medicine, Qinghai University, Xining, China
| | - Zhenzhong Bai
- Key Laboratory of High Altitude Medicine (Ministry of Education), Key Laboratory of Application and Foundation for High Altitude Medicine Research in Qinghai Province (Qinghai-Utah Joint Research Key Lab for High Altitude Medicine), Research Center for High Altitude Medicine, Qinghai University, Xining, China
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Cheng X, Wang K, Zhao Y, Wang K. Research progress on post-translational modification of proteins and cardiovascular diseases. Cell Death Discov 2023; 9:275. [PMID: 37507372 PMCID: PMC10382489 DOI: 10.1038/s41420-023-01560-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 07/04/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Cardiovascular diseases (CVDs) such as atherosclerosis, myocardial remodeling, myocardial ischemia-reperfusion (I/R) injury, heart failure, and oxidative stress are among the greatest threats to human health worldwide. Cardiovascular pathogenesis has been studied for decades, and the influence of epigenetic changes on CVDs has been extensively studied. Post-translational modifications (PTMs), including phosphorylation, glycosylation, methylation, acetylation, ubiquitination, ubiquitin-like and nitrification, play important roles in the normal functioning of the cardiovascular system. Over the past decade, with the application of high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS), an increasing number novel acylation modifications have been discovered, including propionylation, crotonylation, butyrylation, succinylation, lactylation, and isonicotinylation. Each change in protein conformation has the potential to alter protein function and lead to CVDs, and this process is usually reversible. This article summarizes the mechanisms underlying several common PTMs involved in the occurrence and development of CVDs.
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Affiliation(s)
- XueLi Cheng
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, 250014, Shandong, China
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266073, Shandong, China
| | - Kai Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266073, Shandong, China
| | - Yan Zhao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266073, Shandong, China
| | - Kun Wang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Shandong Provincial Maternal and Child Health Care Hospital affiliated to Qingdao University, Jinan, 250014, Shandong, China.
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, 266073, Shandong, China.
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Zheng MZ, Lou JS, Fan YP, Fu CY, Mao XJ, Li X, Zhong K, Lu LH, Wang LL, Chen YY, Zheng LR. Identification of autophagy-associated circRNAs in sepsis-induced cardiomyopathy of mice. Sci Rep 2023; 13:11807. [PMID: 37479790 PMCID: PMC10361974 DOI: 10.1038/s41598-023-38998-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/18/2023] [Indexed: 07/23/2023] Open
Abstract
Circular RNAs (circRNAs) play a role in sepsis-related autophagy. However, the role of circRNAs in autophagy after sepsis-induced cardiomyopathy (SICM) is unknown, so we explored the circRNA expression profiles associated with autophagy in an acute sepsis mouse model. At a dose of 10 mg/kg, mice were intraperitoneally administered with lipopolysaccharides. The myocardial tissue was harvested after 6 h for microarray analysis, qRT-PCR, and western blotting. Gene Ontology, Kyoto Encyclopedia of Genes and Genomes and Gene Set Enrichment Analysis were evaluated, and a competing endogenous RNA network was constructed, to evaluate the role of circRNAs related to autophagy in SICM. In total, 1,735 differently expressed circRNAs were identified in the LPS-treated group, including 990 upregulated and 745 downregulated circRNAs. The expression level of the autophagy-specific protein p62 decreased, while the ratio of LC3 II to LC3 I increased. Additionally, 309 mRNAs and 187 circRNAs were correlated with autophagy in myocardial tissue after SICM. Of these, 179 circRNAs were predicted to function as "miRNA sponges". Some distinctive circRNAs and mRNAs found by ceRNA analysis might be involved in autophagy in SICM. These findings provide insights into circRNAs and identified new research targets that may be used to further explore the pathogenesis of SICM.
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Affiliation(s)
- Ming-Zhi Zheng
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Pharmacology, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Jun-Sheng Lou
- Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Yun-Peng Fan
- Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Chun-Yan Fu
- Department of Basic Medicine Sciences, and Department of Obstetrics of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Xing-Jia Mao
- Department of Basic Medicine Sciences, and Department of Orthopaedics of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Xiang Li
- Department of Pharmacology, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Kai Zhong
- Department of Pharmacology, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Lin-Huizi Lu
- Department of Clinical Medicine, Hangzhou Medical College, Hangzhou, 310053, Zhejiang, China
| | - Lin-Lin Wang
- Department of Basic Medicine Sciences, and Department of Orthopaedics of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China.
| | - Ying-Ying Chen
- Department of Basic Medicine Sciences, and Department of Obstetrics of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
| | - Liang-Rong Zheng
- Department of Cardiology and Atrial Fibrillation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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Liu J, Wang J, Xiong A, Zhang L, Zhang Y, Liu Y, Xiong Y, Li G, He X. Mitochondrial quality control in lung diseases: current research and future directions. Front Physiol 2023; 14:1236651. [PMID: 37538379 PMCID: PMC10395103 DOI: 10.3389/fphys.2023.1236651] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/12/2023] [Indexed: 08/05/2023] Open
Abstract
Lung diseases are a major global health problem, affecting millions of people worldwide. Recent research has highlighted the critical role that mitochondrial quality control plays in respiratory-related diseases, including chronic obstructive pulmonary disease (COPD), lung cancer, and idiopathic pulmonary fibrosis (IPF). In this review, we summarize recent findings on the involvement of mitochondrial quality control in these diseases and discuss potential therapeutic strategies. Mitochondria are essential organelles for energy production and other cellular processes, and their dysfunction is associated with various diseases. The quality control of mitochondria involves a complex system of pathways, including mitophagy, mitochondrial biogenesis, fusion/fission dynamics, and regulation of gene expression. In COPD and lung cancer, mitochondrial quality control is often involved in disease development by influencing oxidative stress and apoptosis. In IPF, it appears to be involved in the disease process by participating in the cellular senescence process. Mitochondrial quality control is a promising target for therapeutic interventions in lung diseases. However, there are conflicting reports on different pathological processes, such as the role of mitochondrial autophagy in lung cancer, which pose difficulties in the study of targeted mitochondrial quality control drugs. Additionally, there seems to be a delicate balance between the mitochondrial quality control processes in the physiological state. Emerging evidence suggests that molecules such as PTEN-induced putative kinase 1 (PINK1), parkin RBR E3 ubiquitin protein ligase (PRKN), dynamin-related protein 1 (DRP1), and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1-α), as well as the signaling pathways they affect, play an important role in respiratory-related diseases. Targeting these molecules and pathways could contribute to the development of effective treatments for lung diseases. In conclusion, the involvement of mitochondrial quality control in lung diseases presents a promising new avenue for disease treatment. Further research is needed to better understand the complex mechanisms involved in the pathogenesis of respiratory diseases and to develop targeted therapies that could improve clinical outcomes.
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Affiliation(s)
- Jiliu Liu
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Junyi Wang
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Anying Xiong
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Lei Zhang
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Yi Zhang
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Yao Liu
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Ying Xiong
- Department of Pulmonary and Critical Care Medicine, Sichuan Friendship Hospital, Chengdu, China
| | - Guoping Li
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
| | - Xiang He
- Laboratory of Allergy and Precision Medicine, School of Medicine, Southwest Jiaotong University, Chengdu Institute of Respiratory Health, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong University, Chengdu, China
- Department of Pulmonary and Critical Care Medicine, Chengdu Third People’s Hospital Branch of National Clinical Research Center for Respiratory Disease, Affiliated Hospital of ChongQing Medical University, Chengdu, China
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47
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Zhu XZ, Qiu Z, Lei SQ, Leng Y, Li WY, Xia ZY. The Role of P53 in Myocardial Ischemia-Reperfusion Injury. Cardiovasc Drugs Ther 2023:10.1007/s10557-023-07480-x. [PMID: 37389674 DOI: 10.1007/s10557-023-07480-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/09/2023] [Indexed: 07/01/2023]
Abstract
PURPOSE P53 is one of the key tumor suppressors. In normal cells, p53 is maintained at low levels by the ubiquitination of the ubiquitinated ligase MDM2. In contrast, under stress conditions such as DNA damage and ischemia, the interaction between p53 and MDM2 is blocked and activated by phosphorylation and acetylation, thereby mediating the trans-activation of p53 through its target genes to regulate a variety of cellular responses. Previous studies have shown that the expression of p53 is negligible in normal myocardium, tends to increase in myocardial ischemia and is maximally induced in ischemia-reperfused myocardium, demonstrating a possible key role of p53 in the development of MIRI. In this review, we detail and summarize recent studies on the mechanism of action of p53 in MIRI and describe the therapeutic agents targeting the relevant targets to provide new strategies for the prevention and treatment of MIRI. METHODS We collected 161 relevant papers mainly from Pubmed and Web of Science (search terms "p53" and "myocardial ischemia-reperfusion injury"). After that, we selected pathway studies related to p53 and classified them according to their contents. We eventually analyzed and summarized them. RESULTS AND CONCLUSION In this review, we detail and summarize recent studies on the mechanism of action of p53 in MIRI and validate its status as an important intermediate affecting MIRI. On the one hand, p53 is regulated and modified by multiple factors, especially non-coding RNAs; on the other hand, p53 regulates apoptosis, programmed necrosis, autophagy, iron death and oxidative stress in MIRI through multiple pathways. More importantly, several studies have reported medications targeting p53-related therapeutic targets. These medications are expected to be effective options for the alleviation of MIRI, but further safety and clinical studies are needed to convert them into clinical applications.
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Affiliation(s)
- Xi-Zi Zhu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Zhen Qiu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Shao-Qing Lei
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Yan Leng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Wen-Yuan Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Zhong-Yuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China.
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48
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Liu S, Kang L, Song Y, Miao M. Role of the HIF-1α/BNIP3 Signaling Pathway in Recurrent Hepatocellular Carcinoma and the Mechanism of Traditional Chinese Medicine. J Hepatocell Carcinoma 2023; 10:893-908. [PMID: 37313302 PMCID: PMC10259603 DOI: 10.2147/jhc.s409292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/01/2023] [Indexed: 06/15/2023] Open
Abstract
Recurrence of hepatocellular carcinoma (HCC) negatively affects the quality of life of patients and leads to death. Studies have shown that recurrent hepatocellular carcinoma (RHCC) is closely related to tissue hypoxia and autophagy. It has been shown that hypoxia-inducible factor-1α (HIF-1α) and its downstream factor BCL-2 19 kDa-interacting protein 3 (BNIP3) promote cellular autophagy under hypoxic conditions, resulting in metastasis and RHCC. In this article, the molecular structures of HIF-1α and BNIP3 are described, and the significance of the HIF-1α/BNIP3 signaling pathway in RHCC is explained. Moreover, the role and mechanism of traditional Chinese medicine (TCM) in treating RHCC by modulating the HIF-1α/BNIP3 signaling pathway is discussed. Studies have shown that the HIF-1α/BNIP3 signaling pathway is a potential target of TCM in the treatment of RHCC. The mechanism of the HIF-1α/BNIP3 signaling pathway in RHCC and the progress achieved in TCM research on targeting and regulating this pathway are also reviewed in this article. The objective was to provide a theoretical basis for the prevention and treatment of RHCC, as well as further drug development.
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Affiliation(s)
- Sizhe Liu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People’s Republic of China
| | - Le Kang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People’s Republic of China
| | - Yagang Song
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People’s Republic of China
| | - Mingsan Miao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, People’s Republic of China
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49
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Chen B, Jin W. A comprehensive review of stroke-related signaling pathways and treatment in western medicine and traditional Chinese medicine. Front Neurosci 2023; 17:1200061. [PMID: 37351420 PMCID: PMC10282194 DOI: 10.3389/fnins.2023.1200061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/19/2023] [Indexed: 06/24/2023] Open
Abstract
This review provides insight into the complex network of signaling pathways and mechanisms involved in stroke pathophysiology. It summarizes the historical progress of stroke-related signaling pathways, identifying potential interactions between them and emphasizing that stroke is a complex network disease. Of particular interest are the Hippo signaling pathway and ferroptosis signaling pathway, which remain understudied areas of research, and are therefore a focus of the review. The involvement of multiple signaling pathways, including Sonic Hedgehog (SHH), nuclear factor erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE), hypoxia-inducible factor-1α (HIF-1α), PI3K/AKT, JAK/STAT, and AMPK in pathophysiological mechanisms such as oxidative stress and apoptosis, highlights the complexity of stroke. The review also delves into the details of traditional Chinese medicine (TCM) therapies such as Rehmanniae and Astragalus, providing an analysis of the recent status of western medicine in the treatment of stroke and the advantages and disadvantages of TCM and western medicine in stroke treatment. The review proposes that since stroke is a network disease, TCM has the potential and advantages of a multi-target and multi-pathway mechanism of action in the treatment of stroke. Therefore, it is suggested that future research should explore more treasures of TCM and develop new therapies from the perspective of stroke as a network disease.
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Affiliation(s)
- Binhao Chen
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weifeng Jin
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
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50
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Borger M, von Haefen C, Bührer C, Endesfelder S. Cardioprotective Effects of Dexmedetomidine in an Oxidative-Stress In Vitro Model of Neonatal Rat Cardiomyocytes. Antioxidants (Basel) 2023; 12:1206. [PMID: 37371938 DOI: 10.3390/antiox12061206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/25/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Preterm birth is a risk factor for cardiometabolic disease. The preterm heart before terminal differentiation is in a phase that is crucial for the number and structure of cardiomyocytes in further development, with adverse effects of hypoxic and hyperoxic events. Pharmacological intervention could attenuate the negative effects of oxygen. Dexmedetomidine (DEX) is an α2-adrenoceptor agonist and has been mentioned in connection with cardio-protective benefits. In this study, H9c2 myocytes and primary fetal rat cardiomyocytes (NRCM) were cultured for 24 h under hypoxic condition (5% O2), corresponding to fetal physioxia (pO2 32-45 mmHg), ambient oxygen (21% O2, pO2 ~150 mmHg), or hyperoxic conditions (80% O2, pO2 ~300 mmHg). Subsequently, the effects of DEX preconditioning (0.1 µM, 1 µM, 10 µM) were analyzed. Modulated oxygen tension reduced both proliferating cardiomyocytes and transcripts (CycD2). High-oxygen tension induced hypertrophy in H9c2 cells. Cell-death-associated transcripts for caspase-dependent apoptosis (Casp3/8) increased, whereas caspase-independent transcripts (AIF) increased in H9c2 cells and decreased in NRCMs. Autophagy-related mediators (Atg5/12) were induced in H9c2 under both oxygen conditions, whereas they were downregulated in NRCMs. DEX preconditioning protected H9c2 and NRCMs from oxidative stress through inhibition of transcription of the oxidative stress marker GCLC, and inhibited the transcription of both the redox-sensitive transcription factors Nrf2 under hyperoxia and Hif1α under hypoxia. In addition, DEX normalized the gene expression of Hippo-pathway mediators (YAP1, Tead1, Lats2, Cul7) that exhibited abnormalities due to differential oxygen tensions compared with normoxia, suggesting that DEX modulates the activation of the Hippo pathway. This, in the context of the protective impact of redox-sensitive factors, may provide a possible rationale for the cardio-protective effects of DEX in oxygen-modulated requirements on survival-promoting transcripts of immortalized and fetal cardiomyocytes.
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Affiliation(s)
- Moritz Borger
- Department of Neonatology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Clarissa von Haefen
- Department of Anesthesiology and Intensive Care Medicine, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Christoph Bührer
- Department of Neonatology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Stefanie Endesfelder
- Department of Neonatology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
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