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Zhang N, Zhang S, Dong X. Plant-derived bioactive compounds and their novel role in central nervous system disorder treatment via ATF4 targeting: A systematic literature review. Biomed Pharmacother 2024; 176:116811. [PMID: 38795641 DOI: 10.1016/j.biopha.2024.116811] [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: 03/30/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024] Open
Abstract
Central nervous system (CNS) disorders exhibit exceedingly intricate pathogenic mechanisms. Pragmatic and effective solutions remain elusive, significantly compromising human life and health. Activating transcription factor 4 (ATF4) participates in the regulation of multiple pathophysiological processes, including CNS disorders. Considering the widespread involvement of ATF4 in the pathological process of CNS disorders, the targeted regulation of ATF4 by plant-derived bioactive compounds (PDBCs) may become a viable strategy for the treatment of CNS disorders. However, the regulatory relationship between PDBCs and ATF4 remains incompletely understood. Here, we aimed to comprehensively review the studies on PDBCs targeting ATF4 to ameliorate CNS disorders, thereby offering novel directions and insights for the treatment of CNS disorders. A computerized search was conducted on PubMed, Embase, Web of Science, and Google Scholar databases to identify preclinical experiments related to PDBCs targeting ATF4 for the treatment of CNS disorders. The search timeframe was from the inception of the databases to December 2023. Two assessors conducted searches using the keywords "ATF4," "Central Nervous System," "Neurological," "Alzheimer's disease," "Parkinson's Disease," "Stroke," "Spinal Cord Injury," "Glioblastoma," "Traumatic Brain Injury," and "Spinal Cord Injury." Overall, 31 studies were included, encompassing assessments of 27 PDBCs. Combining results from in vivo and in vitro studies, we observed that these PDBCs, via ATF4 modulation, prevent the deposition of amyloid-like fibers such as Aβ, tau, and α-synuclein. They regulate ERS, reduce the release of inflammatory factors, restore mitochondrial membrane integrity to prevent oxidative stress, regulate synaptic plasticity, modulate autophagy, and engage anti-apoptotic mechanisms. Consequently, they exert neuroprotective effects in CNS disorders. Numerous PDBCs targeting ATF4 have shown potential in facilitating the restoration of CNS functionality, thereby presenting expansive prospects for the treatment of such disorders. However, future endeavors necessitate high-quality, large-scale, and comprehensive preclinical and clinical studies to further validate this therapeutic potential.
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Affiliation(s)
- Nan Zhang
- Department of Neurology, the Seventh Clinical College of China Medical University, No. 24 Central Street, Xinfu District, Fushun, Liaoning 113000, China
| | - Shun Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao street, Heping District, Shenyang, Liaoning 110000, China
| | - Xiaoyu Dong
- Department of Neurology, Shengjing Hospital of China Medical University, No. 36 Sanhao street, Heping District, Shenyang, Liaoning 110000, China.
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2
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Wu Y, Zhang H, Wang Y, Zhang Y, Hong Z, Wang D. Sephin1 enhances integrated stress response and autophagy to alleviate myocardial ischemia-reperfusion injury in mice. Biomed Pharmacother 2024; 176:116869. [PMID: 38850665 DOI: 10.1016/j.biopha.2024.116869] [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: 03/13/2024] [Revised: 05/19/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024] Open
Abstract
OBJECTIVE Integrated stress response (ISR) is activated to promote cell survival by maintaining the phosphorylation of eukaryotic translation initiation factor 2 (eIF2α). We investigated whether Sephin1 enhances ISR and attenuates myocardial ischemia-reperfusion (MIR) injury. METHODS Male C57BL/6 J mice were injected with Sephin1 (2 mg/kg,i.p.) 30 min before surgery to establish a model of MIR with 45 min ischemia and 180 min reperfusion. In vitro, the H9C2 cell line with hypoxia-reoxygenation (H/R) was used to simulate MIR. Myocardial injury was evaluated by echocardiography, histologic observation after staining with TTC and H&E and electron microscopy. ISR, autophagy and apoptosis in vivo and in vitro were evaluated by immunoblotting, immunohistochemistry, immunofluorescence, and flow cytometry, respectively. Global protein synthesis was determined using a non-radioactive SUnSET Assay based on the puromycin method. Autophinib, an autophagy-specific inhibitor, was used to investigate the correlation between autophagy and apoptosis in the presence of Sephin1. RESULTS In vivo, Sephin1 significantly reduced myocardial injury and improved the cardiac function in MIR mice. Sephin1 administration prolonged ISR, reduced cell apoptosis, and promoted autophagy. In vitro, Sephin1 increased the number of stress granules (SGs) and autophagic vesicles, enhanced ISR and related protein synthesis suppression, and reduced cell apoptosis. Autophinib partly reversed autophagosome formation and apoptosis in H9c2 cells. CONCLUSIONS Sephin1 enhances ISR and related protein synthesis suppression, ameliorates myocardial apoptosis, and promotes autophagy during MIR stress. Sephin1 could act as a noval ISR enhancer for managing acute myocardial ischemia disease.
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Affiliation(s)
- Yong Wu
- Department of Gerontology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China
| | - Huabin Zhang
- Department of Gerontology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China; School of Pharmacy, Wannan Medical College, Wuhu 241001, China
| | - Yue Wang
- Department of Gerontology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China
| | - Ying Zhang
- Department of Gerontology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China
| | - Zongyuan Hong
- School of Pharmacy, Wannan Medical College, Wuhu 241001, China
| | - Deguo Wang
- Department of Gerontology, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, China.
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Lacy SM, Taubitz RJ, Urban ND, Turowski SN, Smith ED, Helms AS, Michele DE, Truttmann MC. FICD deficiency protects mice from hypertrophy-induced heart failure via BiP-mediated activation of the UPR ER and ER-phagy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.28.596287. [PMID: 38853840 PMCID: PMC11160590 DOI: 10.1101/2024.05.28.596287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Cardiomyocytes require the HSP70 chaperone BiP to maintain proteostasis in the endoplasmic reticulum (ER) following cardiac stress. The adenylyl transferase (AMPylase) FICD is increasingly recognized to regulate BiP activity through the post-translational addition of an adenosine monophosphate moiety to BiP surface residues. However, the physiological impact of FICD-mediated BiP regulation in the context of cardiovascular health is unknown. Here, we find that FICD deficiency prevents pressure overload-associated heart failure, hypertrophy, and fibrosis, and that FICD knockout mice maintain normal cardiac function after cardiac pressure overload. At a cellular level, we observe that FICD-mediated BiP AMPylation blunts the induction of the unfolded protein response (UPR ER ) and impairs BiP interaction with FAM134B, an ER-phagy receptor, thus limiting ER-phagy induction under stress. In contrast, FICD loss significantly increases BiP-dependent UPR ER induction and ER-phagy in stressed cardiomyocytes. We also uncover cell type-specific consequences of FICD activity in response to ER stress, positioning FICD as a critical proteostasis regulator in cardiac tissue. Our results highlight a novel regulatory paradigm controlling stress resilience in cardiomyocytes and offer a rationale to consider FICD as a therapeutic target to treat cardiac hypertrophy.
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Lv Y, Yu Z, Zhang P, Zhang X, Li H, Liang T, Guo Y, Cheng L, Peng F. The structure and function of FUN14 domain-containing protein 1 and its contribution to cardioprotection by mediating mitophagy. Front Pharmacol 2024; 15:1389953. [PMID: 38828457 PMCID: PMC11140143 DOI: 10.3389/fphar.2024.1389953] [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: 02/22/2024] [Accepted: 04/29/2024] [Indexed: 06/05/2024] Open
Abstract
Cardiovascular disease (CVD) is a serious public health risk, and prevention and treatment efforts are urgently needed. Effective preventive and therapeutic programs for cardiovascular disease are still lacking, as the causes of CVD are varied and may be the result of a multifactorial combination. Mitophagy is a form of cell-selective autophagy, and there is increasing evidence that mitophagy is involved in cardioprotective processes. Recently, many studies have shown that FUN14 domain-containing protein 1 (FUNDC1) levels and phosphorylation status are highly associated with many diseases, including heart disease. Here, we review the structure and functions of FUNDC1 and the path-ways of its mediated mitophagy, and show that mitophagy can be effectively activated by dephosphorylation of Ser13 and Tyr18 sites, phosphorylation of Ser17 site and ubiquitination of Lys119 site in FUNDC1. By effectively activating or inhibiting excessive mitophagy, the quality of mitochondria can be effectively controlled. The main reason is that, on the one hand, improper clearance of mitochondria and accumulation of damaged mitochondria are avoided, and on the other hand, excessive mitophagy causing apoptosis is avoided, both serving to protect the heart. In addition, we explore the possible mechanisms by which FUNDC1-mediated mitophagy is involved in exercise preconditioning (EP) for cardioprotection. Finally, we also point out unresolved issues in FUNDC1 and its mediated mitophagy and give directions where further research may be needed.
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Affiliation(s)
- Yuhu Lv
- College of Physical Education, Guangdong University of Education, Guangzhou, China
- Research Center for Adolescent Sports and Health Promotion of Guangdong Province, Guangzhou, China
| | - Zhengze Yu
- College of Physical Education and Health, Guangxi Normal University, Guilin, China
| | - Peiwen Zhang
- College of Nursing and Rehabilitation, Xi an FanYi University, Xi’an, China
| | - Xiqian Zhang
- College of Physical Education, Guangdong University of Education, Guangzhou, China
- Research Center for Adolescent Sports and Health Promotion of Guangdong Province, Guangzhou, China
| | - Huarui Li
- College of Physical Education and Health, Guangxi Normal University, Guilin, China
| | - Ting Liang
- College of Physical Education and Health, Guangxi Normal University, Guilin, China
| | - Yanju Guo
- College of Physical Education and Health, Guangxi Normal University, Guilin, China
| | - Lin Cheng
- College of Physical Education and Health, Guangxi Normal University, Guilin, China
| | - Fenglin Peng
- College of Physical Education and Health, Guangxi Normal University, Guilin, China
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Xiong F, Wang C, Lu J, Bai G, Zhou D, Ling J. 4-PBA exerts brain-protective effects against sepsis-associated encephalopathy in a mouse model of sepsis. Exp Neurol 2024; 375:114738. [PMID: 38395217 DOI: 10.1016/j.expneurol.2024.114738] [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: 12/18/2023] [Revised: 02/09/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Neuroinflammation assumes a pivotal role in both the etiological underpinnings and the dynamic progression of sepsis-associated encephalopathy (SAE). The occurrence of cognitive deficits with SAE is associated with neuroinflammation. 4-phenyl butyrate (4-PBA) may control inflammation by inhibiting endoplasmic reticulum stress (ERS). The primary objective of this investigation is to scrutinize the effectiveness of 4-PBA in mitigating neuroinflammation induced by lipopolysaccharides (LPS) and its consequent impact on cognitive function decline. METHODS LPS-injected mice with SAE and LPS-treated BV2 cell were established to serve as experimental paradigms, both contributing to the investigative framework of the study. Cognitive functions were assessed by behavioral tests. Hippocampal neuronal damage was assessed using Golgi staining and Nissl staining. Quantitative PCR assay and immunofluorescence were used to analyze neuroinflammation. Mitochondrial function was examined using transmission electron microscopy. Protein expression analysis was conducted through the application of western blotting methodology, serving as the investigative approach to elucidate molecular signatures in the experimental framework. Endoplasmic reticulum and mitochondrial calcium flow were detected using flow cytometry. To delve deeper into the mechanistic intricacies, the administration of 4μ8c was employed to selectively impede the IRE1α/Xbp1s pathway, constituting a strategic intervention aimed at elucidating underlying regulatory processes. RESULT Expression levels of ERS-related proteins exhibited a significant upregulation in hippocampal tissues of LPS-treated mice when compared to wild-type (WT) counterparts. The administration of 4-PBA notably ameliorated memory deficits in LPS-treated mice. Furthermore, 4-PBA treatment was found to alleviate oxidative stress and neuroinflammation. Mechanistically, the IRE1α/Xbp1s-Ca2+ signaling pathway played a crucial role in mediating the beneficial effects of mitigating oxidative stress and maintaining mitochondrial calcium homeostasis, with inhibition of the IRE-related pathway displaying opposing effects. CONCLUSION Our results suggest that administration of 4-PBA treatment significantly attenuates ERS, alleviates cognitive decline, reduces inflammatory damage, and restores mitochondrial dynamics via the IRE1α/Xbp1s-Ca2+-associated pathway, which provides a new potential therapeutic approach to SAE.
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Affiliation(s)
- Feng Xiong
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China
| | - Cailin Wang
- Department of Neurology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Jun Lu
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China
| | - Guangyang Bai
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China
| | - Daixing Zhou
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China.
| | - Jianmin Ling
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China; Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong university of science and technology, Wuhan 430000, China.
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He F, Wang F, Xiang H, Ma Y, Lu Q, Xia Y, Zhou H, Wang Y, Ke J. Activation of adenosine A2B receptor alleviates myocardial ischemia-reperfusion injury by inhibiting endoplasmic reticulum stress and restoring autophagy flux. Arch Biochem Biophys 2024; 754:109945. [PMID: 38395121 DOI: 10.1016/j.abb.2024.109945] [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: 09/05/2023] [Revised: 02/10/2024] [Accepted: 02/20/2024] [Indexed: 02/25/2024]
Abstract
Myocardial ischemia-reperfusion injury (MIRI) poses a significant threat to patients with coronary heart disease. Adenosine A2A receptors have been known as a protective role in MIRI by regulating autophagy, so we assumed that activation of adenosine A2B receptor (A2BAR) might exert a similar effect during MIRI and underlying mechanism be related to proteostasis maintenance as well. In situ hearts were subjected to 30 min of ischemia and 120 min of reperfusion (IR), while invitro cardiomyocytes from neonatal rats experienced 6 h of oxygen-glucose deprivation followed by 12 h of reoxygenation (OGDR). Initially, we observed that post-ischemia-reperfusion induced autophagy flux blockade and ERS both in vivo and in vitro, evident through the increased expression of p62, LC3II, and BIP, which indicated the deteriorated proteostasis. We used a selective A2BAR agonist, Bay 60-6583, to explore the positive effects of A2BAR on cardiomyocytes and found that A2BAR activation rescued damaged cardiac function and morphological changes in the IR group and improved frail cell viability in the OGDR group. The A2BAR agonist also alleviated the blockage of autophagic flux, coupled with augmented ERS in the IR/OGDR group, which was reassured by using an autophagy inhibitor chloroquine (CQ) and ERS inhibitor (4-PBA) in vitro. Additionally, considering cAMP/PKA as a well-known downstream effector of A2BAR, we utilized H89, a selective PKA inhibitor. We observed that the positive efficacy of Bay 60-6583 was inhibited by H89. Collectively, our findings demonstrate that the A2BAR/cAMP/PKA signaling pathway exerts a protective role in MIRI by mitigating impaired autophagic flux and excessive ERS.
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Affiliation(s)
- Feng He
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fuyu Wang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hanmin Xiang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yunna Ma
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qing Lu
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yun Xia
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Huimin Zhou
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yanlin Wang
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Jianjuan Ke
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
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Chen J, Xu X, Shao Y, Bian X, Li R, Zhang Y, Xiao Y, Lu M, Jiang Q, Zeng Y, Yan F, Ye J, Li Z. AKT2 deficiency alleviates doxorubicin-induced cardiac injury via alleviating oxidative stress in cardiomyocytes. Int J Biochem Cell Biol 2024; 169:106539. [PMID: 38290690 DOI: 10.1016/j.biocel.2024.106539] [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: 12/07/2023] [Revised: 01/17/2024] [Accepted: 01/23/2024] [Indexed: 02/01/2024]
Abstract
Doxorubicin (DOX), a widely used chemotherapy agent in cancer treatment, encounters limitations in clinical efficacy due to associated cardiotoxicity. This study aims to explore the role of AKT serine/threonine kinase 2 (AKT2) in mitigating DOX-induced oxidative stress within the heart through both intracellular and extracellular signaling pathways. Utilizing Akt2 knockout (KO) and Nrf2 KO murine models, alongside neonatal rat cardiomyocytes (NRCMs), we systematically investigate the impact of AKT2 deficiency on DOX-induced cardiac injury. Our findings reveal that DOX administration induces significant oxidative stress, a primary contributor to cardiac injury. Importantly, Akt2 deficiency exhibits a protective effect by alleviating DOX-induced oxidative stress. Mechanistically, Akt2 deficiency facilitates nuclear translocation of NRF2, thereby suppressing intracellular oxidative stress by promoting the expression of antioxidant genes. Furthermore, We also observed that AKT2 inhibition facilitates superoxide dismutase 2 (SOD2) expression both inside macrophages and SOD2 secretion to the extracellular matrix, which is involved in lowering oxidative stress in cardiomyocytes upon DOX stimulation. The present study underscores the important role of AKT2 in mitigating DOX-induced oxidative stress through both intracellular and extracellular signaling pathways. Additionally, our findings propose promising therapeutic strategies for addressing DOX-induced cardiomyopathy in clinic.
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Affiliation(s)
- Jiawen Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing 210009, China; School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaozhi Xu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yuru Shao
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaohong Bian
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Ruiyan Li
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yubin Zhang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yibei Xiao
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Meiling Lu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Qizhou Jiang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yuan Zeng
- Clinical Pharmacology and Bioanalytics, Pfizer (China) Research and Development Co., Ltd, China
| | - Fangrong Yan
- Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Junmei Ye
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China.
| | - Zhe Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Cardiovascular research Institute, Wuhan University, Wuhan 430060, China.
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Zhang C, Huang X, Xie B, Lian D, Chen J, Li W, Lin Y, Cai X, Li J. The multi-protective effect of IL-37-Smad3 against ox-LDL induced dysfunction of endothelial cells. Biomed Pharmacother 2024; 172:116268. [PMID: 38359489 DOI: 10.1016/j.biopha.2024.116268] [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: 09/03/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 02/17/2024] Open
Abstract
Atherosclerosis is a lipid-driven inflammatory arterial disease, with one crucial factor is oxidized low-density lipoprotein (ox-LDL), which can induce endothelial dysfunction through endoplasmic reticulum stress (ERS). Interleukin-37 (IL-37) exerts vascular protective functions. This study aims to investigates whether IL-37 can alleviate ERS and autophagy induced by ox-LDL, therely potentialy treating atherosclerosis. We found that ox-LDL enhances the wound healing rate in Rat Coronary Artery Endothelial Cells (RCAECs) and IL-37 reduce the ox-LDL-induced pro-osteogenic response, ERS, and autophagy by binding to Smad3. In RCAECs treated with ox-LDL and recombinant human IL-37, the wound healing rate was mitigated. The expression of osteogenic transcription factors and proteins involved in the ERS pathway was reduced in the group pretreated with IL-37 and ox-LDL. However, these responses were not alleviated when Smads silenced. Electron microscopy revealed that the IL-37/Smad3 complex could suppress endoplasmic reticulum autophagy under ox-LDL stimulation. Thus, IL-37 might treat atherosclerosis through its multi-protective effect by binding Smad3.
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Affiliation(s)
- Changyi Zhang
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China
| | - Xiaojun Huang
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China
| | - Bin Xie
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China
| | - Danchun Lian
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China
| | - Jinhao Chen
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China
| | - Weiwen Li
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China
| | - Ying Lin
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China
| | - Xiangna Cai
- Department of Plastic Surgeon, First Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China.
| | - Jilin Li
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou City, Guangdong province, China.
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Li G, Zhao H, Cheng Z, Liu J, Li G, Guo Y. Single-cell transcriptomic profiling of heart reveals ANGPTL4 linking fibroblasts and angiogenesis in heart failure with preserved ejection fraction. J Adv Res 2024:S2090-1232(24)00068-7. [PMID: 38346487 DOI: 10.1016/j.jare.2024.02.006] [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: 10/24/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/19/2024] Open
Abstract
INTRODUCTION Despite the high morbidity and mortality, the effective therapies for heart failure with preserved fraction (HFpEF) are limited as the poor understand of its pathophysiological basis. OBJECTIVE This study was aimed to characterize the cellular heterogeneity and potential mechanisms of HFpEF at single-cell resolution. METHODS An HFpEF mouse model was induced by a high-fat diet with N-nitro-L-arginine methyl ester. Cells from the hearts were subjected to single-cell sequencing. The key protein expression was measured with Immunohistochemistry and immunofluorescence staining. RESULTS In HFpEF hearts, myocardial fibroblasts exhibited higher levels of fibrosis. Furthermore, an increased number of fibroblasts differentiated into high-metabolism and high-fibrosis phenotypes. The expression levels of genes encoding certain pro-angiogenic secreted proteins were decreased in the HFpEF group, as confirmed by bulk RNA sequencing. Additionally, the proportion of the endothelial cell (EC) lineages in the HFpEF group was significantly downregulated, with low angiogenesis and high apoptosis phenotypes observed in these EC lineages. Interestingly, the fibroblasts in the HFpEF heart might cross-link with the EC lineages via over-secretion of ANGPTL4, thus displaying an anti-angiogenic function. Immunohistochemistry and immunofluorescence staining then revealed the downregulation of vascular density and upregulation of ANGPTL4 expression in HFpEF hearts. Finally, we predicted ANGPTL4as a potential druggable target using DrugnomeAI. CONCLUSION In conclusion, this study comprehensively characterized the angiogenesis impairment in HFpEF hearts at single-cell resolution and proposed that ANGPTL4 secretion by fibroblasts may be a potential mechanism underlying this angiogenic abnormality.
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Affiliation(s)
- Guoxing Li
- Institute of Life Sciences, Chongqing Medical University, 400016, China
| | - Huilin Zhao
- Institute of Life Sciences, Chongqing Medical University, 400016, China
| | - Zhe Cheng
- Department of Cardiology, Chongqing University Three Gorges Hospital, Chongqing 404199, China
| | - Junjin Liu
- Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Gang Li
- Institute of Life Sciences, Chongqing Medical University, 400016, China; Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, 400016, China.
| | - Yongzheng Guo
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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10
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Li T, Liu F, Tan Y, Peng Y, Xu X, Yang Y. PIM3 regulates myocardial ischemia/reperfusion injury via ferroptosis. Genes Genomics 2024; 46:161-170. [PMID: 38148455 DOI: 10.1007/s13258-023-01475-6] [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: 12/28/2022] [Revised: 06/16/2023] [Accepted: 06/22/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND Myocardial ischemia/reperfusion (I/R) injury is closely related with cardiovascular diseases; however, the underlying pathogenic mechanisms remain not fully understood. This study sought to investigate the effect and mechanisms of PIM3 implicated in myocardial I/R injury using a rat model of myocardial I/R injury and a cell model of oxygen-glucose deprivation/reoxygenation (OGD/R) induction. METHODS The morphology changes were detected by HE staining while cell viability was accessed by the CCK-8 method. The characteristics of ferroptosis were evaluated by ROS production, MDA content, SOD level, iron content, TfR1, FTH1, and GPX4 expression. RESULTS Myocardial I/R operation increased myocardial tissue damage in rats, while OGD/R treatment reduced the viability of H9c2 cells. Both myocardial I/R operation and OGD/R stimulation increased ferroptosis, as demonstrated by elevated ROS, MDA, iron content, decreased SOD level, upregulation of TfR1, and downregulation of FTH1 and GPX4. Additionally, myocardial I/R modeling or OGD/R treatment enhanced the expression of PIM3. Silencing of PIM3 inhibited ferroptosis, which resulted in alleviated myocardial I/R-induced damage and improved H9c2 cell survival. CONCLUSIONS Our findings highlight a vital role of PIM3 in myocardial I/R injury, indicating that PIM3-targeting ferroptosis may be a promising target for the development of novel therapies of myocardial I/R injury-associated diseases.
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Affiliation(s)
- Ting Li
- Department of Cardiovascular Medicine, The First Affiliated Hosptal, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Fangyao Liu
- Department of Cardiovascular Medicine, The Second Affiliated Hosptal, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Ying Tan
- Department of Cardiovascular Medicine, The First Affiliated Hosptal, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Yutao Peng
- Department of Cardiovascular Medicine, The First Affiliated Hosptal, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Xuefeng Xu
- Department of Cardiovascular Medicine, The First Affiliated Hosptal, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Yushan Yang
- School of Resource, Environment and Safety Engineering, Univerity of South China, Hengyang, 421001, Hunan, People's Republic of China.
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11
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Han J, Jia D, Yao H, Xu C, Huan Z, Jin H, Ge X. GRP78 improves the therapeutic effect of mesenchymal stem cells on hemorrhagic shock-induced liver injury: Involvement of the NF-кB and HO-1/Nrf-2 pathways. FASEB J 2024; 38:e23334. [PMID: 38050647 DOI: 10.1096/fj.202301456rrr] [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: 07/17/2023] [Revised: 11/08/2023] [Accepted: 11/13/2023] [Indexed: 12/06/2023]
Abstract
Mesenchymal stem cells (MSCs) are a popular cell source for repairing the liver. Improving the survival rate and colonization time of MSCs may significantly improve the therapeutic outcomes of MSCs. Studies showed that 78-kDa glucose-regulated protein (GRP78) expression improves cell viability and migration. This study aims to examine whether GRP78 overexpression improves the efficacy of rat bone marrow-derived MSCs (rBMSCs) in HS-induced liver damage. Bone marrow was isolated from the femurs and tibias of rats. rBMSCs were transfected with a GFP-labeled GRP78 expression vector. Flow cytometry, transwell invasion assay, scratch assay immunoblotting, TUNEL assay, MTT assay, and ELISA were carried out. The results showed that GRP78 overexpression enhanced the migration and invasion of rBMSCs. Moreover, GRP78-overexpressing rBMSCs relieved liver damage, repressed liver oxidative stress, and inhibited apoptosis. We found that overexpression of GRP78 in rBMSCs inhibited activation of the NLRP3 inflammasome, significantly decreased the levels of inflammatory factors, and decreased the expression of CD68. Notably, GRP78 overexpression activated the Nrf-2/HO-1 pathway and inhibited the NF-κB pathway. High expression of GRP78 efficiently enhanced the effect of rBMSC therapy. GRP78 may be a potential target to improve the therapeutic efficacy of BMSCs.
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Affiliation(s)
- Jiahui Han
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, People's Republic of China
| | - Di Jia
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, People's Republic of China
| | - Hao Yao
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, People's Republic of China
| | - Ce Xu
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, People's Republic of China
| | - Zhirong Huan
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, People's Republic of China
| | - Hongdou Jin
- Department of General Surgery, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, People's Republic of China
| | - Xin Ge
- Department of Critical Care Medicine, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, People's Republic of China
- Orthopedic Institution of Wuxi City, Wuxi, People's Republic of China
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12
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Camargo LL, Wang Y, Rios FJ, McBride M, Montezano AC, Touyz RM. Oxidative Stress and Endoplasmic Reticular Stress Interplay in the Vasculopathy of Hypertension. Can J Cardiol 2023; 39:1874-1887. [PMID: 37875177 DOI: 10.1016/j.cjca.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/19/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023] Open
Abstract
Under physiologic conditions, reactive oxygen species (ROS) function as signalling molecules that control cell function. However, in pathologic conditions, increased generation of ROS triggers oxidative stress, which plays a role in vascular changes associated with hypertension, including endothelial dysfunction, vascular reactivity, and arterial remodelling (termed the vasculopathy of hypertension). The major source of ROS in the vascular system is NADPH oxidase (NOX). Increased NOX activity drives vascular oxidative stress in hypertension. Molecular mechanisms underlying vascular damage in hypertension include activation of redox-sensitive signalling pathways, post-translational modification of proteins, and oxidative damage of DNA and cytoplasmic proteins. In addition, oxidative stress leads to accumulation of proteins in the endoplasmic reticulum (ER) (termed ER stress), with consequent activation of the unfolded protein response (UPR). ER stress is emerging as a potential player in hypertension as abnormal protein folding in the ER leads to oxidative stress and dysregulated activation of the UPR promotes inflammation and injury in vascular and cardiac cells. In addition, the ER engages in crosstalk with exogenous sources of ROS, such as mitochondria and NOX, which can amplify redox processes. Here we provide an update of the role of ROS and NOX in hypertension and discuss novel concepts on the interplay between oxidative stress and ER stress.
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Affiliation(s)
- Livia L Camargo
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.
| | - Yu Wang
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Francisco J Rios
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Martin McBride
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Augusto C Montezano
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Rhian M Touyz
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada; McGill University, Department of Medicine and Department of Family Medicine, Montréal, Québec, Canada.
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13
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Kubra KT, Barabutis N. Ceapin-A7 potentiates lipopolysaccharide-induced endothelial injury. J Biochem Mol Toxicol 2023; 37:e23460. [PMID: 37431958 PMCID: PMC10782819 DOI: 10.1002/jbt.23460] [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: 02/20/2023] [Revised: 06/14/2023] [Accepted: 07/04/2023] [Indexed: 07/12/2023]
Abstract
Barrier dysfunction is the hallmark of severe lung injury, including acute respiratory distress syndrome. Efficient medical countermeasures to counteract endothelial hyperpermeability do not exist, hence the mortality rates of disorders related to barrier abnormalities are unacceptable high. The unfolded protein response is a highly conserved mechanism, which aims to support the cells against endoplasmic reticulum stress, and ATF6 is a protein sensor that triggers its activation. In the current study, we investigate the effects of ATF6 suppression in LPS-induced endothelial inflammation. Our observations suggest that Ceapin-A7, which is an ATF6 suppressor, potentiates LPS-induced STAT3 and JAK2 activation. Hence ATF6 activation may serve as a new therapeutic possibility toward diseases related to barrier dysfunction.
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Affiliation(s)
- Khadeja-Tul Kubra
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, Louisiana 71201, USA
| | - Nektarios Barabutis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, Louisiana 71201, USA
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14
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Zhang J, Zhao Y, Gong N. XBP1 Modulates the Aging Cardiorenal System by Regulating Oxidative Stress. Antioxidants (Basel) 2023; 12:1933. [PMID: 38001786 PMCID: PMC10669121 DOI: 10.3390/antiox12111933] [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: 09/19/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/26/2023] Open
Abstract
X-box binding protein 1 (XBP1) is a unique basic-region leucine zipper (bZIP) transcription factor. Over recent years, the powerful biological functions of XBP1 in oxidative stress have been gradually revealed. When the redox balance remains undisturbed, oxidative stress plays a role in physiological adaptations and signal transduction. However, during the aging process, increased cellular senescence and reduced levels of endogenous antioxidants cause an oxidative imbalance in the cardiorenal system. Recent studies from our laboratory and others have indicated that these age-related cardiorenal diseases caused by oxidative stress are guided and controlled by a versatile network composed of diversified XBP1 pathways. In this review, we describe the mechanisms that link XBP1 and oxidative stress in a range of cardiorenal disorders, including mitochondrial instability, inflammation, and alterations in neurohumoral drive. Furthermore, we propose that differing degrees of XBP1 activation may cause beneficial or harmful effects in the cardiorenal system. Gaining a comprehensive understanding of how XBP1 exerts influence on the aging cardiorenal system by regulating oxidative stress will enhance our ability to provide new directions and strategies for cardiovascular and renal safety outcomes.
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Affiliation(s)
- Ji Zhang
- Anhui Province Key Laboratory of Genitourinary Diseases, Department of Urology, The First Affiliated Hospital of Anhui Medical University, Institute of Urology, Anhui Medical University, Hefei 230022, China;
- Key Laboratory of Organ Transplantation of Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, National Health Commission and Chinese Academy of Medical Sciences, Huazhong University of Science and Technology, Wuhan 430030, China;
| | - Yuanyuan Zhao
- Key Laboratory of Organ Transplantation of Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, National Health Commission and Chinese Academy of Medical Sciences, Huazhong University of Science and Technology, Wuhan 430030, China;
| | - Nianqiao Gong
- Key Laboratory of Organ Transplantation of Ministry of Education, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, National Health Commission and Chinese Academy of Medical Sciences, Huazhong University of Science and Technology, Wuhan 430030, China;
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15
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Huo CL, Wang B, Zhang X, Sun ZG. Skimmianine attenuates liver ischemia/reperfusion injury by regulating PI3K-AKT signaling pathway-mediated inflammation, apoptosis and oxidative stress. Sci Rep 2023; 13:18232. [PMID: 37880319 PMCID: PMC10600244 DOI: 10.1038/s41598-023-45354-2] [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: 02/21/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023] Open
Abstract
Liver ischemia/reperfusion (I/R) injury is a common injury after liver transplantation and hepatectomy. Skimmianine (Ski) has antibacterial, antiviral pharmacological effects. However, it is not clear whether Ski has a protective effect against liver I/R injury. In the present study, we established a mouse liver I/R model and an AML12 cell hypoxia-reoxygenation (H/R) model, both pretreated with different concentrations of Ski. Serum transaminase levels, necrotic liver area, cell viability, inflammatory factors, oxidative stress and apoptosis-related levels were measured to assess the protective effect of Ski against liver I/R injury. Western blotting was used to detect apoptosis-related proteins and PI3K-AKT pathway-related proteins. Mice and cells were also treated with PI3K inhibitor LY294002 to assess changes in indicators of liver injury. The results showed that Ski significantly reduced transaminase levels, liver necrosis area, oxidative stress, and apoptosis levels in mice with I/R. Ski also inhibited cell injury and apoptosis after H/R. Moreover, Ski activated phosphorylation of PI3K-AKT pathway-related proteins after liver I/R and cell H/R. Importantly, the PI3K inhibitor LY294002 effectively reversed the alleviation of I/R injury caused by Ski. These results confirm that Ski exerts a protective effect against liver I/R injury through activation of the PI3K-AKT pathway.
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Affiliation(s)
- Cheng-Long Huo
- Department of Hepatobiliary Surgery, Jingzhou Hospital Affiliated to Yangtze University, No. 26, Chuyuan Avenue, Jingzhou District, Jingzhou, Hubei, China
| | - Bing Wang
- Department of Hepatobiliary Surgery, Jingzhou Hospital Affiliated to Yangtze University, No. 26, Chuyuan Avenue, Jingzhou District, Jingzhou, Hubei, China
| | - Xuewen Zhang
- Department of Hepatobiliary Surgery, Jingzhou Hospital Affiliated to Yangtze University, No. 26, Chuyuan Avenue, Jingzhou District, Jingzhou, Hubei, China
| | - Zhen-Gang Sun
- Department of Hepatobiliary Surgery, Jingzhou Hospital Affiliated to Yangtze University, No. 26, Chuyuan Avenue, Jingzhou District, Jingzhou, Hubei, China.
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16
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Cao Q, Liu L, Hu Y, Cao S, Tan T, Huang X, Deng Q, Chen J, Guo R, Zhou Q. Low-intensity pulsed ultrasound of different intensities differently affects myocardial ischemia/reperfusion injury by modulating cardiac oxidative stress and inflammatory reaction. Front Immunol 2023; 14:1248056. [PMID: 37744362 PMCID: PMC10513435 DOI: 10.3389/fimmu.2023.1248056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/23/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction The prevalence of ischemic heart disease has reached pandemic levels worldwide. Early revascularization is currently the most effective therapy for ischemic heart diseases but paradoxically induces myocardial ischemia/reperfusion (MI/R) injury. Cardiac inflammatory reaction and oxidative stress are primarily involved in the pathology of MI/R injury. Low-intensity pulsed ultrasound (LIPUS) has been demonstrated to reduce cell injury by protecting against inflammatory reaction and oxidative stress in many diseases, including cardiovascular diseases, but rarely on MI/R injury. Methods This study was designed to clarify whether LIPUS alleviates MI/R injury by alleviating inflammatory reaction and oxidative stress. Simultaneously, we have also tried to confirm which intensity of the LIPUS might be more suitable to ameliorate the MI/R injury, as well as to clarify the signaling mechanisms. MI/R and simulated ischemia/reperfusion (SI/R) were respectively induced in Sprague Dawley rats and human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs). LIPUS treatment, biochemical measurements, cell death assay, estimation of cardiac oxidative stress and inflammatory reaction, and protein detections by western blotting were performed according to the protocol. Results In our study, both in vivo and in vitro, LIPUS of 0.1 W/cm2 (LIPUS0.1) and 0.5 W/cm2 (LIPUS0.5) make no significant difference in the cardiomyocytes under normoxic condition. Under the hypoxic condition, MI/R injury, inflammatory reaction, and oxidative stress were partially ameliorated by LIPUS0.5 but were significantly aggravated by LIPUS of 2.5 W/cm2 (LIPUS2.5) both in vivo and in vitro. The activation of the apoptosis signal-regulating kinase 1 (ASK1)/c-Jun N-terminal kinase (JNK) pathway in cardiomyocytes with MI/R injury was partly rectified LIPUS0.5 both in vivo and in vitro. Conclusion Our study firstly demonstrated that LIPUS of different intensities differently affects MI/R injury by regulating cardiac inflammatory reaction and oxidative stress. Modulations on the ASK1/JNK pathway are the signaling mechanism by which LIPUS0.5 exerts cardioprotective effects. LIPUS0.5 is promising for clinical translation in protecting against MI/R injury. This will be great welfare for patients suffering from MI/R injury.
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Affiliation(s)
- Quan Cao
- Department of Nephrology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lian Liu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yugang Hu
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Sheng Cao
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tuantuan Tan
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xin Huang
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qing Deng
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jinling Chen
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ruiqiang Guo
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qing Zhou
- Echo Lab, Department of Ultrasound Imaging, Renmin Hospital of Wuhan University, Wuhan, China
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17
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Liu X, Tuerxusssn Z, Balati Y, Gong P, Zhang Z, Bao Z, Yang Y, He P, Muhuyati. The Effect and Mechanism of POSTN and Its Alternative Splicing on the Apoptosis of Myocardial Cells in Acute Myocardial Infarction: A Study in Vitro. Cell Biochem Biophys 2023; 81:481-491. [PMID: 37572219 PMCID: PMC10465634 DOI: 10.1007/s12013-023-01157-w] [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] [Accepted: 07/31/2023] [Indexed: 08/14/2023]
Abstract
Our study aimed to investigate key molecular targets in the pathogenesis of AMI, and provide new strategy for the treatment. In this work, the myocardial ischemia and hypoxia model was constructed by using HL-1 mouse cardiomyocytes. The over-expressing POSTN wild-type, mutant and negative control lentiviruses (GV492-POSTNWT,GV492-POSTN-MUT, GV492-NC) was conducted and transfected. Cardiomyocytes were examined for cell proliferation and apoptosis to explore the effects of POSTN and its alternative splicing. The endoplasmic reticulum stess-related apoptosis proteins were selected and detected. We found that POSTN could promote the proliferation of normal and hypoxic cardiomyocytes and inhibit their apoptosis. The mechanism by which POSTN inhibited cardiomyocyte apoptosis may be through inhibiting the GRP78-eIF2α-ATF4-CHOP pathway of endoplasmic reticulum stress. Alternative splicing of POSTN could inhibit the apoptosis of ischemic and hypoxic cardiomyocytes, and its mechanism needs to be confirmed by further studies. We drawed the conclusion that POSTN might be a potential therapeutic target for AMI.
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Affiliation(s)
- Xuemei Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Zulikaier Tuerxusssn
- The Second Department of Coronary Heart Disease, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Yumaierjiang Balati
- The Second Department of Coronary Heart Disease, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Pengfei Gong
- Department of Integrated Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Ze Zhang
- The Second Department of Coronary Heart Disease, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Zhen Bao
- Department of Integrated Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Yuchun Yang
- Department of Integrated Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China
| | - Pengyi He
- The Second Department of Coronary Heart Disease, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China.
| | - Muhuyati
- Department of Integrated Cardiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, China.
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18
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Chu H, Fan X, Zhang Z, Han L. miR-199a-5p inhibits aortic valve calcification by targeting ATF6 and GRP78 in valve interstitial cells. Open Med (Wars) 2023; 18:20230777. [PMID: 37693833 PMCID: PMC10487378 DOI: 10.1515/med-2023-0777] [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: 03/13/2023] [Revised: 06/25/2023] [Accepted: 07/31/2023] [Indexed: 09/12/2023] Open
Abstract
Calcific aortic valve disease (CAVD) is an important cause of disease burden among aging populations. Excessive active endoplasmic reticulum stress (ERS) was demonstrated to promote CAVD. The expression level of miR-199a-5p in patients with CAVD was reported to be downregulated. In this article, we aimed to investigate the function and mechanism of miR-199a-5p in CAVD. The expression level of miR-199a-5p and ERS markers was identified in calcific aortic valve samples and osteogenic induction by real-time quantitative polymerase chain reaction (RT-qPCR), immunohistochemistry, and western blotting (WB). Alizarin red staining, RT-qPCR, and WB were used for the verification of the function of miR-199a-5p. The dual luciferase reporter assay and rescue experiment were conducted to illuminate the mechanism of miR-199a-5p. In our study, the expression level of miR-199a-5p was significantly decreased in calcified aortic valves and valve interstitial cells' (VICs) osteogenic induction model, accompanying with the upregulation of ERS markers. Overexpression of miR-199a-5p suppressed the osteogenic differentiation of VICs, while downregulation of miR-199a-5p promoted this function. 78 kDa glucose-regulated protein (GRP78) and activating transcription factor 6 (ATF6), both of which were pivotal modulators in ERS, were potential targets of miR-199a-5p. miR-199a-5p directly targeted GRP78 and ATF6 to modulate osteoblastic differentiation of VICs. miR-199a-5p inhibits osteogenic differentiation of VICs by regulating ERS via targeting GRP78 and ATF6.
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Affiliation(s)
- Heng Chu
- Department of Thoracic Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, Shandong, 266000, China
| | - XingLi Fan
- Department of Cardiovascular Surgery, Changhai Hospital Affiliated to Naval Medical University, Shanghai200433, China
| | - Zhe Zhang
- Department of Thoracic Surgery, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), No. 1 Jiaozhou Road, Shibei District,, Qingdao, Shandong, 266000, China
| | - Lin Han
- Department of Cardiovascular Surgery, Changhai Hospital Affiliated to Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai200433, China
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19
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Iyer DR, Venkatraman J, Tanguy E, Vitale N, Mahapatra NR. Chromogranin A and its derived peptides: potential regulators of cholesterol homeostasis. Cell Mol Life Sci 2023; 80:271. [PMID: 37642733 PMCID: PMC11072126 DOI: 10.1007/s00018-023-04908-3] [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: 03/03/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/31/2023]
Abstract
Chromogranin A (CHGA), a member of the granin family of proteins, has been an attractive therapeutic target and candidate biomarker for several cardiovascular, neurological, and inflammatory disorders. The prominence of CHGA stems from the pleiotropic roles of several bioactive peptides (e.g., catestatin, pancreastatin, vasostatins) generated by its proteolytic cleavage and by their wide anatomical distribution. These peptides are emerging as novel modulators of cardiometabolic diseases that are often linked to high blood cholesterol levels. However, their impact on cholesterol homeostasis is poorly understood. The dynamic nature of cholesterol and its multitudinous roles in almost every aspect of normal body function makes it an integral component of metabolic physiology. A tightly regulated coordination of cholesterol homeostasis is imperative for proper functioning of cellular and metabolic processes. The deregulation of cholesterol levels can result in several pathophysiological states. Although studies till date suggest regulatory roles for CHGA and its derived peptides on cholesterol levels, the mechanisms by which this is achieved still remain unclear. This review aims to aggregate and consolidate the available evidence linking CHGA with cholesterol homeostasis in health and disease. In addition, we also look at common molecular regulatory factors (viz., transcription factors and microRNAs) which could govern the expression of CHGA and genes involved in cholesterol homeostasis under basal and pathological conditions. In order to gain further insights into the pathways mediating cholesterol regulation by CHGA/its derived peptides, a few prospective signaling pathways are explored, which could act as primers for future studies.
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Affiliation(s)
- Dhanya R Iyer
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Janani Venkatraman
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Emeline Tanguy
- Institut des Neurosciences Cellulaires et Intégratives, CNRS UPR 3212 and Université de Strasbourg, 5 Rue Blaise Pascal, 67000, Strasbourg, France
| | - Nicolas Vitale
- Institut des Neurosciences Cellulaires et Intégratives, CNRS UPR 3212 and Université de Strasbourg, 5 Rue Blaise Pascal, 67000, Strasbourg, France.
| | - Nitish R Mahapatra
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, 600036, India.
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20
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Li K, Li Y, Ding H, Chen J, Zhang X. Metal-Binding Proteins Cross-Linking with Endoplasmic Reticulum Stress in Cardiovascular Diseases. J Cardiovasc Dev Dis 2023; 10:jcdd10040171. [PMID: 37103050 PMCID: PMC10143100 DOI: 10.3390/jcdd10040171] [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: 03/25/2023] [Revised: 04/11/2023] [Accepted: 04/15/2023] [Indexed: 04/28/2023] Open
Abstract
The endoplasmic reticulum (ER), an essential organelle in eukaryotic cells, is widely distributed in myocardial cells. The ER is where secreted protein synthesis, folding, post-translational modification, and transport are all carried out. It is also where calcium homeostasis, lipid synthesis, and other processes that are crucial for normal biological cell functioning are regulated. We are concerned that ER stress (ERS) is widespread in various damaged cells. To protect cells' function, ERS reduces the accumulation of misfolded proteins by activating the unfolded protein response (UPR) pathway in response to numerous stimulating factors, such as ischemia or hypoxia, metabolic disorders, and inflammation. If these stimulatory factors are not eliminated for a long time, resulting in the persistence of the UPR, it will aggravate cell damage through a series of mechanisms. In the cardiovascular system, it will cause related cardiovascular diseases and seriously endanger human health. Furthermore, there has been a growing number of studies on the antioxidative stress role of metal-binding proteins. We observed that a variety of metal-binding proteins can inhibit ERS and, hence, mitigate myocardial damage.
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Affiliation(s)
- Kejuan Li
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou 730031, China
| | - Yongnan Li
- Department of Cardiac Surgery, Lanzhou University Second Hospital, Lanzhou University, Lanzhou 730031, China
| | - Hong Ding
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou 730031, China
| | - Jianshu Chen
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou 730031, China
| | - Xiaowei Zhang
- Department of Cardiology, Lanzhou University Second Hospital, Lanzhou University, Lanzhou 730031, China
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21
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Mou YL, Zhao R, Lyu SY, Zhang ZY, Zhu MF, Liu Q. Crocetin protects cardiomyocytes against hypoxia/reoxygenation injury by attenuating Drp1-mediated mitochondrial fission via PGC-1α. J Geriatr Cardiol 2023; 20:68-82. [PMID: 36875162 PMCID: PMC9975486 DOI: 10.26599/1671-5411.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND Saffron (Crocus sativus L.) has been traditionally used as food, spice, and medicine. Crocetin (CRT), as main bioactive component of saffron, has accumulated pieces of beneficial evidence on myocardial ischemia/reperfusion (I/R) injury. However, the mechanisms are poorly explored. This study aims to investigate the effects of CRT on H9c2 cells under hypoxia/reoxygenation (H/R) and elucidated the possible underlying mechanism. METHODS H/R attack was performed on H9c2 cells. Cell counting kit-8 was used to detect the cell viability. Cell samples and culture supernatants were evaluated via commercial kits to measure the superoxide dismutase (SOD) activity, malondialdehyde (MDA) content, and cellular adenosine triphosphate (ATP) content. Various fluorescent probes were used to detect cell apoptosis, intracellular and mitochondrial reactive oxygen species (ROS) content, mitochondrial morphology, mitochondrial membrane potential (MMP), and mitochondrial permeability transition pore (mPTP) opening. Proteins were evaluated via Western Blot. RESULTS H/R exposure severely reduced cell viability and increased LDH leakage. Peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α) suppression and dynamin-related protein 1 (Drp1) activation were coincided with excessive mitochondrial fission, mitochondrial permeability transition pore (mPTP) opening and mitochondrial membrane potential (MMP) collapse in H9c2 cells treated with H/R. Mitochondria fragmentation under H/R injury induced ROS over-production, oxidative stress, and cell apoptosis. Notably, CRT treatment significantly prevented mitochondrial fission, mPTP opening, MMP loss, and cell apoptosis. Moreover, CRT sufficiently activated PGC-1α and inactivated Drp1. Interestingly, mitochondrial fission inhibition with mdivi-1 similarly suppressed mitochondrial dysfunction, oxidative stress and cell apoptosis. However, silencing PGC-1α with small interfering RNA (siRNA) abolished the beneficial effects of CRT on H9c2 cells under H/R injury, accompanied with increased Drp1 and p-Drp1ser616 levels. Furthermore, over-expression of PGC-1α with adenovirus transfection replicated the beneficial effects of CRT on H9c2 cells. CONCLUSIONS Our study identified PGC-1α as a master regulator in H/R-injured H9c2 cells via Drp1-mediated mitochondrial fission. We also presented the evidence that PGC-1α might be a novel target against cardiomyocyte H/R injury. Our data revealed the role of CRT in regulating PGC-1α/Drp1/mitochondrial fission process in H9c2 cells under the burden of H/R attack, and we suggested that modulation of PGC-1α level may provide a therapeutic target for treating cardiac I/R injury.
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Affiliation(s)
- You-Ling Mou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Rui Zhao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shi-Ying Lyu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zi-Yi Zhang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mei-Fei Zhu
- Department of Critical Care Medicine, the First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qian Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
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22
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d-allose protects brain microvascular endothelial cells from hypoxic/reoxygenated injury by inhibiting endoplasmic reticulum stress. Neurosci Lett 2023; 793:137000. [PMID: 36473686 DOI: 10.1016/j.neulet.2022.137000] [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: 08/30/2022] [Revised: 11/17/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Ischemic stroke is an acute brain disease with a high mortality rate. Currently, the only effective method is to restore the blood supply. But the inflammation and oxidative stress induced by this approach can damage the integrity of the endothelial system, which hampers the patient's outcome. d-allose has the biological activity to protect against ischemia-reperfusion injury, however, the underlying mechanism remains unclear. Here, brain microvascular endothelial cells (RBMECs) were used as the study material to establish an IR-injury model. Cell viability of RBMECs was suppressed after hypoxia/reoxygenation (H/R) treatment and significantly increased after d-allose supplementation. RNAseq results showed 180 differentially expressed genes (DEGs) between the therapy group (H/R + Dal) and the model group (H/R), of which 151 DEGs were restored to control levels by d-allose. Enrichment analysis revealed that DEGs were mainly involved in protein processing in endoplasmic reticulum. 6 DEGs in the unfolded protein response (UPR) pathway were verified by qRT-PCR. All of them were significantly down-regulated by d-allose, indicating that endoplasmic reticulum stress (ERS) was relieved. In addition, d-allose significantly inhibited the phosphorylation level of eIF2α, a marker of ERS. The downstream molecules of Phosphorylation of eIF2α, Gadd45a and Chac1, which trigger cycle arrest and apoptosis, respectively, were also significantly inhibited by d-allose. Thus, we conclude that d-allose inhibits the UPR pathway, attenuates eIF2α phosphorylation and ERS, restores the cell cycle, inhibits apoptosis, and thus enhances endothelial cell tolerance to H/R injury.
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23
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Qin C, Wang Y, Zhang Y, Zhu Y, Wang Y, Cao F. Transcriptome-wide analysis reveals the molecular mechanisms of cannabinoid type II receptor agonists in cardiac injury induced by chronic psychological stress. Front Genet 2023; 13:1095428. [PMID: 36704356 PMCID: PMC9871316 DOI: 10.3389/fgene.2022.1095428] [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: 11/11/2022] [Accepted: 12/27/2022] [Indexed: 01/12/2023] Open
Abstract
Background: Growing evidence has supported that chronic psychological stress would cause heart damage, However the mechanisms involved are not clear and effective interventions are insufficient. Cannabinoid type 2 receptor (CB2R) can be a potential treatment for cardiac injury. This study is aimed to investigate the protective mechanism of CB2R agonist against chronic psychological stress-induced cardiac injury. Methods: A mouse chronic psychological stress model was constructed based on a chronic unpredictable stress pattern. Mice were performed a three-week psychological stress procedure, and cardiac tissues of them were collected for whole-transcriptome sequencing. Overlap analysis was performed on differentially expressed mRNAs (DE-mRNAs) and ER stress-related genes (ERSRGs), and bioinformatic methods were used to predict the ceRNA networks and conduct pathway analysis. The expressions of the DE-ERSRGs were validated by RT-qPCR. Results: In the comparison of DE mRNA in Case group, Control group and Treatment group, three groups of ceRNA networks and ceRNA (circ) networks were constructed. The DE-mRNAs were mainly enriched in chromatid-relevant terms and Hematopoietic cell lineage pathway. Additionally, 13 DE-ERSRGs were obtained by the overlap analysis, which were utilized to establish a ceRNA network with 15 nodes and 14 edges and a ceRNA (circ) network with 23 nodes and 28 edges. Furthermore, four DE-ERSRGs (Cdkn1a, Atf3, Fkbp5, Gabarapl1) in the networks were key, which were mainly enriched in response to extracellular stimulus, response to nutrient levels, cellular response to external stimulus, and FoxO signaling pathway. Finally, the RT-qPCR results showed almost consistent expression patterns of 13 DE-ERSRGs between the transcriptome and tissue samples. Conclusion: The findings of this study provide novel insights into the molecular mechanisms of chronic psychological stress-induced cardiac diseases and reveal novel targets for the cardioprotective effects of CB2R agonists.
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Affiliation(s)
- Cheng Qin
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases and Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yujia Wang
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases and Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yang Zhang
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases and Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Yan Zhu
- Nankai University School of Medicine, Nankai University, Tianjin, China
| | - Yabin Wang
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases and Second Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Feng Cao
- Department of Cardiology, National Clinical Research Center for Geriatric Diseases and Second Medical Center of Chinese PLA General Hospital, Beijing, China,Beijing Key Laboratory of Research on Aging and Related Diseases, Beijing, China,*Correspondence: Feng Cao,
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Molecular Mechanism Underlying Role of the XBP1s in Cardiovascular Diseases. J Cardiovasc Dev Dis 2022; 9:jcdd9120459. [PMID: 36547457 PMCID: PMC9782920 DOI: 10.3390/jcdd9120459] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Spliced X-box binding protein-1 (XBP1s) is a protein that belongs to the cAMP-response element-binding (CREB)/activating transcription factor (ATF) b-ZIP family with a basic-region leucine zipper (bZIP). There is mounting evidence to suggest that XBP1s performs a critical function in a range of different cardiovascular diseases (CVDs), indicating that it is necessary to gain a comprehensive knowledge of the processes involved in XBP1s in various disorders to make progress in research and clinical therapy. In this research, we provide a summary of the functions that XBP1s performs in the onset and advancement of CVDs such as atherosclerosis, hypertension, cardiac hypertrophy, and heart failure. Furthermore, we discuss XBP1s as a novel therapeutic target for CVDs.
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Leptin alleviates endoplasmic reticulum stress induced by cerebral ischemia/reperfusion injury via the PI3K/Akt signaling pathway. Biosci Rep 2022; 42:232083. [PMID: 36367210 PMCID: PMC9744719 DOI: 10.1042/bsr20221443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Cerebral ischemic/reperfusion injury (CIRI) is a key factor for the prognosis of ischemic stroke (IS), the leading disease in terms of global disability and fatality rates. Recent studies have shown that endoplasmic reticulum stress (ERS) may be a target against CIRI and that leptin, a peptide hormone, has neuroprotective activity to mitigate CIRI. METHODS An in vitro CIRI model was induced in primary cortical neurons by oxygen-glucose deprivation and reoxygenation (OGD/R) after pretreatment with LY294002 (10 µmol/L) and/or leptin (0.4 mg/L), and cell viability, neuronal morphology and endoplasmic reticulum (ER) dysfunction were evaluated. An in vivo CIRI model was established in rats by middle cerebral artery occlusion and reperfusion (MCAO/R) after the injection of LY294002 (10 μmol/L) and/or leptin (1 mg/kg), and neurological function, infarct volume, cerebral pathological changes, the expression of ERS-related proteins and cell apoptosis were examined. RESULTS In vitro, leptin treatment improved the cell survival rate, ameliorated neuronal pathological morphology and alleviated OGD/R-induced ERS. In vivo, administration of leptin significantly reduced the infarct volume, neurological deficit scores and neuronal apoptosis as well as pathological alterations. In addition, leptin suppressed MCAO/R-induced ERS and may decrease apoptosis by inhibiting ERS-related death and caspase 3 activation. It also regulated expression of the antiapoptotic protein Bcl-2 and the proapoptotic protein Bax in the cortex. Furthermore, the inhibitory effect of leptin on ERS was significantly decreased by the effective phosphatidylinositol 3-kinase (PI3K) inhibitor LY294002. CONCLUSIONS These results confirm that ERS plays an important role in CIRI and that leptin can inhibit the activation of ERS through the PI3K/Akt pathway, thereby alleviating CIRI. These findings provide novel therapeutic targets for IS.
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Kubra KT, Akhter MS, Saini Y, Kousoulas KG, Barabutis N. Activating transcription factor 6 protects against endothelial barrier dysfunction. Cell Signal 2022; 99:110432. [PMID: 35933031 PMCID: PMC10413362 DOI: 10.1016/j.cellsig.2022.110432] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 12/17/2022]
Abstract
BACKGROUND Endothelial hyperpermeability is associated with sepsis and acute respiratory distress syndrome (ARDS). The identification of molecular pathways involved in barrier dysfunction; may reveal promising therapeutic targets to combat ARDS. Unfolded protein response (UPR) is a highly conserved molecular pathway, which ameliorates endoplasmic reticulum stress. The present work focuses on the effects of ATF6, which is a UPR sensor, in lipopolysaccharides (LPS)-induced endothelial hyperpermeability. METHODS The in vitro effects of AA147 and Ceapin-A7 in LPS-induced endothelial barrier dysfunction were investigated in bovine pulmonary artery endothelial cells (BPAEC). Small interfering (si) RNA was utilized to "silence" ATF6, and electric cell-substrate impedance sensing (ECIS) measured transendothelial resistance. Fluorescein isothiocyanate (FITC)-dextran assay was utilized to assess paracellular permeability. Protein expression levels were evaluated with Western blotting, and cell viability with MTT assay. RESULTS We demonstrated that AA147 prevents LPS-induced barrier disruption by counteracting Cofilin and myosin light chain 2 (MLC2) activation, as well as VE-Cadherin phosphorylation. Moreover, this ATF6 inducer opposed LPS-triggered decrease in transendothelial resistance (TEER), as well as LPS-induced paracellular hyperpermeability. On the other hand, ATF6 suppression due to Ceapin-A7 or small interfering RNA exerted the opposite effects, and potentiated LPS-induced endothelial barrier disruption. Moderate concentrations of both ATF6 modulators did not affect cell viability. CONCLUSIONS ATF6 activation protects against endothelial barrier function, suggesting that this UPR sensor may serve as a therapeutic target for sepsis and ARDS.
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Affiliation(s)
- Khadeja-Tul Kubra
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201, USA
| | - Mohammad S Akhter
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201, USA
| | - Yogesh Saini
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Konstantin G Kousoulas
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Nektarios Barabutis
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe, Monroe, LA 71201, USA.
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Bip-Yorkie interaction determines oncogenic and tumor-suppressive roles of Ire1/Xbp1s activation. Proc Natl Acad Sci U S A 2022; 119:e2202133119. [PMID: 36215479 PMCID: PMC9586321 DOI: 10.1073/pnas.2202133119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Unfolded protein response (UPR) is the mechanism by which cells control endoplasmic reticulum (ER) protein homeostasis. ER proteostasis is essential to adapt to cell proliferation and regeneration in development and tumorigenesis, but mechanisms linking UPR, growth control, and cancer progression remain unclear. Here, we report that the Ire1/Xbp1s pathway has surprisingly oncogenic and tumor-suppressive roles in a context-dependent manner. Activation of Ire1/Xbp1s up-regulates their downstream target Bip, which sequesters Yorkie (Yki), a Hippo pathway transducer, in the cytoplasm to restrict Yki transcriptional output. This regulation provides an endogenous defensive mechanism in organ size control, intestinal homeostasis, and regeneration. Unexpectedly, Xbp1 ablation promotes tumor overgrowth but suppresses invasiveness in a Drosophila cancer model. Mechanistically, hyperactivated Ire1/Xbp1s signaling in turn induces JNK-dependent developmental and oncogenic cell migration and epithelial-mesenchymal transition (EMT) via repression of Yki. In humans, a negative correlation between XBP1 and YAP (Yki ortholog) target gene expression specifically exists in triple-negative breast cancers (TNBCs), and those with high XBP1 or HSPA5 (Bip ortholog) expression have better clinical outcomes. In human TNBC cell lines and xenograft models, ectopic XBP1s or HSPA5 expression alleviates tumor growth but aggravates cell migration and invasion. These findings uncover a conserved crosstalk between the Ire1/Xbp1s and Hippo signaling pathways under physiological settings, as well as a crucial role of Bip-Yki interaction in tumorigenesis that is shared from Drosophila to humans.
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Yan T, Li X, Nian T, Zhang X, He B, Bi K, Wang Z. Salidroside Inhibits Ischemia/Reperfusion-Induced Myocardial Apoptosis by Targeting Mir-378a-3p Via the Igf1r/Pi3k/Akt Signaling Pathway. Transplant Proc 2022; 54:1970-1983. [PMID: 35927086 DOI: 10.1016/j.transproceed.2022.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 05/03/2022] [Accepted: 05/22/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND The present study aimed to investigate the protective effects and mechanism of salidroside (SAL) on hypoxia/reoxygenation (H/R)-induced cardiomyocyte apoptosis and myocardial ischemia/reperfusion (I/R) injury. METHODS We set up an H/R H9c2 cell model in vitro and an I/R rat model in vivo. Cell viability, apoptosis and histopathologic evaluation were conducted. RESULTS The cell viability of H/R-induced cardiomyocytes was increased by pretreatment of SAL, whereas the release of lactate dehydrogenase, reactive oxygen species production, and apoptosis were decreased accompanied with reduced Cleaved-caspase-3 and Bax, and increased Bcl-2 expressions. The SAL restored mitochondrial membrane potential both in vitro and in vivo, and improved electrocardiographic abnormality, and attenuated myocardial apoptosis and injury in I/R-induced rats. The transfection of miR-378a-3p inhibitor counteracted the effects of SAL-induced increase of cell viability and decrease of cell apoptosis and mitochondrial membrane potential. SAL reduced the expression of insulin-like growth factor 1 receptor (IGF1R), and increased the expressions of PI3K and Akt, however, these alterations were blocked by miR-378a-3p inhibitor. CONCLUSIONS miR-378a-3p might participate in the protective effect of SAL in I/R-induced myocardial apoptosis via the IGF1R/PI3K/AKT signaling pathway.
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Affiliation(s)
- Tingxu Yan
- Jiangsu Kangyuan Pharmaceutical Co, Ltd, Lianyungang, China; School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Xu Li
- Jiangsu Kangyuan Pharmaceutical Co, Ltd, Lianyungang, China; State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Lianyungang, China
| | - Tingting Nian
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaozhuo Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Bosai He
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Kaishun Bi
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China.
| | - Zhenzhong Wang
- Jiangsu Kangyuan Pharmaceutical Co, Ltd, Lianyungang, China; State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Jiangsu Lianyungang, China.
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29
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Wang S, Sun L, Zhu Z, Liu J, Ge W, Li B, Wang B. Cryptotanshinone alleviates myocardial ischemia and reperfusion injury in rats to mitigate ER stress-dependent apoptosis by modulating the JAK1/STAT3 axis. Am J Transl Res 2022; 14:5024-5039. [PMID: 35958489 PMCID: PMC9360873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 06/19/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE Myocardial ischemia is the stoppage or insufficiency of blood flow to the myocardium, depriving cells of oxygen supply which leads to their apoptosis or death. Currently, the management of patients has improved, making it possible to reduce myocardial infarction injury with new strategies of reperfusion and pharmacologic treatment. METHODS A rat model of myocardial ischemia and reperfusion injury (MIRI) was created and subjected to cryptotanshinone (CRY) with or without JAK1 inhibitor filgotinib (FILGO) treatment. H&E staining was used for histopathologic evaluation of heart injury, and TTC staining was employed for evaluation of the infarct size. Western blotting and immunofluorescence were used to measure the protein expression and qRT-PCR for determining mRNA expression. RESULTS CRY significantly reduced the area of the infarct, the number of apoptotic cells, and the concentrations of lactate dehydrogenase (LDH) and creatine kinase-MB (CK-MB) induced by ischemia/reperfusion (I/R). Subsequent analysis showed that CRY repressed the expression of caspase-12, CHOP, and GRP78, but enhanced the phosphorylation of JAK and STAT3. However, FILGO treatment markedly abolished the beneficial effect of CRY pretreatment on cardiomyocyte damage, apoptosis, cardiac function, and inhibition of endoplasmic reticulum stress (ERS)-dependent apoptosis marker proteins. CONCLUSION CRY may alleviate MIRI by inhibiting ERS-dependent apoptosis by activating the JAK1/STAT3 signaling pathway.
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Affiliation(s)
- Shasha Wang
- Department of Cardiovascular Medicine, Jinshan Branch of Shanghai Sixth People's Hospital Shanghai 201599, China
| | - Lifang Sun
- Department of Cardiovascular Medicine, Jinshan Branch of Shanghai Sixth People's Hospital Shanghai 201599, China
| | - Zhijian Zhu
- Department of Cardiovascular Medicine, Jinshan Branch of Shanghai Sixth People's Hospital Shanghai 201599, China
| | - Junyi Liu
- Department of Cardiovascular Medicine, Jinshan Branch of Shanghai Sixth People's Hospital Shanghai 201599, China
| | - Wei Ge
- Department of Cardiovascular Medicine, Jinshan Branch of Shanghai Sixth People's Hospital Shanghai 201599, China
| | - Baoyin Li
- Department of Cardiovascular Medicine, Jinshan Branch of Shanghai Sixth People's Hospital Shanghai 201599, China
| | - Bing Wang
- Department of Cardiovascular Medicine, Jinshan Branch of Shanghai Sixth People's Hospital Shanghai 201599, China
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30
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Lv Q, Ma B, Li W, Fu G, Wang X, Xiao Y. Nanomaterials-Mediated Therapeutics and Diagnosis Strategies for Myocardial Infarction. Front Chem 2022; 10:943009. [PMID: 35873037 PMCID: PMC9301085 DOI: 10.3389/fchem.2022.943009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/14/2022] [Indexed: 11/30/2022] Open
Abstract
The alarming mortality and morbidity rate of myocardial infarction (MI) is becoming an important impetus in the development of early diagnosis and appropriate therapeutic approaches, which are critical for saving patients' lives and improving post-infarction prognosis. Despite several advances that have been made in the treatment of MI, current strategies are still far from satisfactory. Nanomaterials devote considerable contribution to tackling the drawbacks of conventional therapy of MI by improving the homeostasis in the cardiac microenvironment via targeting, immune modulation, and repairment. This review emphasizes the strategies of nanomaterials-based MI treatment, including cardiac targeting drug delivery, immune-modulation strategy, antioxidants and antiapoptosis strategy, nanomaterials-mediated stem cell therapy, and cardiac tissue engineering. Furthermore, nanomaterials-based diagnosis strategies for MI was presented in term of nanomaterials-based immunoassay and nano-enhanced cardiac imaging. Taken together, although nanomaterials-based strategies for the therapeutics and diagnosis of MI are both promising and challenging, such a strategy still explores the immense potential in the development of the next generation of MI treatment.
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Affiliation(s)
- Qingbo Lv
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Boxuan Ma
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wujiao Li
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guosheng Fu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoyu Wang
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, China
| | - Yun Xiao
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
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31
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Chen DQ, Guo Y, Li X, Zhang GQ, Li P. Small molecules as modulators of regulated cell death against ischemia/reperfusion injury. Med Res Rev 2022; 42:2067-2101. [PMID: 35730121 DOI: 10.1002/med.21917] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 11/11/2021] [Accepted: 06/07/2022] [Indexed: 12/13/2022]
Abstract
Ischemia/reperfusion (IR) injury contributes to disability and mortality worldwide. Due to the complicated mechanisms and lack of proper therapeutic targets, few interventions are available that specifically target the pathogenesis of IR injury. Regulated cell death (RCD) of endothelial and parenchymal cells is recognized as the promising intervening target. Recent advances in IR injury suggest that small molecules exhibit beneficial effects on various RCD against IR injury, including apoptosis, necroptosis, autophagy, ferroptosis, pyroptosis, and parthanatos. Here, we describe the mechanisms behind these novel promising therapeutic targets and explain the machinery powering the small molecules. These small molecules exert protection by targeting endothelial or parenchymal cells to alleviate IR injury. Therapies of the ideal combination of small molecules targeting multiple cell types have shown potent synergetic therapeutic effects, laying the foundation for novel strategies to attenuate IR injury.
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Affiliation(s)
- Dan-Qian Chen
- Department of Emergency, China-Japan Friendship Hospital, Beijing, China.,Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Yan Guo
- Department of Internal Medicine, University of New Mexico, Albuquerque, New Mexico, USA
| | - Xin Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Guo-Qiang Zhang
- Department of Emergency, China-Japan Friendship Hospital, Beijing, China
| | - Ping Li
- Beijing Key Lab for Immune-Mediated Inflammatory Diseases, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
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Lv Y, Cheng L, Peng F. Compositions and Functions of Mitochondria-Associated Endoplasmic Reticulum Membranes and Their Contribution to Cardioprotection by Exercise Preconditioning. Front Physiol 2022; 13:910452. [PMID: 35733995 PMCID: PMC9207531 DOI: 10.3389/fphys.2022.910452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/11/2022] [Indexed: 11/13/2022] Open
Abstract
Mitochondria-associated endoplasmic reticulum membranes (MAMs) are important components of intracellular signaling and contribute to the regulation of intracellular Ca2+/lipid homeostasis, mitochondrial dynamics, autophagy/mitophagy, apoptosis, and inflammation. Multiple studies have shown that proteins located on MAMs mediate cardioprotection. Exercise preconditioning (EP) has been shown to protect the myocardium from adverse stimuli, but these mechanisms are still being explored. Recently, a growing body of evidence points to MAMs, suggesting that exercise or EP may be involved in cardioprotection by modulating proteins on MAMs and subsequently affecting MAMs. In this review, we summarize the latest findings on MAMs, analyzing the structure and function of MAMs and the role of MAM-related proteins in cardioprotection. We focused on the possible mechanisms by which exercise or EP can modulate the involvement of MAMs in cardioprotection. We found that EP may affect MAMs by regulating changes in MFN2, MFN1, AMPK, FUNDC1, BECN1, VDAC1, GRP75, IP3R, CYPD, GSK3β, AKT, NLRP3, GRP78, and LC3, thus playing a cardioprotective role. We also provided direction for future studies that may be of interest so that more in-depth studies can be conducted to elucidate the relationship between EP and cardioprotection.
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Plasma-derived extracellular vesicles transfer microRNA-130a-3p to alleviate myocardial ischemia/reperfusion injury by targeting ATG16L1. Cell Tissue Res 2022; 389:99-114. [PMID: 35503135 DOI: 10.1007/s00441-022-03605-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 02/24/2022] [Indexed: 11/02/2022]
Abstract
Extracellular vesicles (EVs) are implicated in myocardial ischemia/reperfusion (I/R) injury as modulators by shuttling diverse cargoes, including microRNAs (miRNAs). The current study was initiated to unravel the potential involvement of plasma-derived EVs carrying miR-130a-3p on myocardial I/R injury. Rats were induced with moderate endoplasmic reticulum stress, followed by isolation of plasma-derived EVs. Then, an I/R rat model and hypoxia/reoxygenation (H/R) cardiomyoblast model were established to simulate a myocardial I/R injury environment where miR-130a-3p was found to be abundantly expressed. miR-130a-3p was confirmed to target and negatively regulate autophagy-related 16-like 1 (ATG16L1) in cardiomyoblasts. Based on a co-culture system, miR-130a-3p delivered by EVs derived from plasma protected H/R-exposed cardiomyoblasts against H/R-induced excessive cardiomyoblast autophagy, inflammation, and damage, improving cardiac dysfunction as well as myocardial I/R-induced cardiac dysfunction and tissue injury. The mechanism underlying the functional role of EVs-loaded miR-130a-3p was found to be dependent on its targeting relation with ATG16L1. The protective action of EV-carried miR-130a-3p was further re-produced in a rat model serving as in vivo validation as evidenced by improved cardiac function, tissue injury, myocardial fibrosis, and myocardial infarction. Collectively, miR-130a-3p shuttled by plasma-derived EVs was demonstrated to alleviate excessive cardiomyoblast autophagy and improve myocardial I/R injury.
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Ye JJ, Yu W, Xie BR, Li K, Liu MD, Dong X, Chen ZX, Feng J, Zhang XZ. Self-Reinforced Cancer Targeting (SRCT) Depending on Reciprocally Enhancing Feedback between Targeting and Therapy. ACS NANO 2022; 16:5851-5866. [PMID: 35412799 DOI: 10.1021/acsnano.1c10999] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Conventional cancer targeting methodology needs to be reformed to overcome the intrinsic barriers responsible for poor targeting efficiency. This study describes a concept of self-reinforced cancer targeting (SRCT) by correlating targeting with therapy in a reciprocally enhancing manner. SRCT is achieved on the basis of two prerequisites: (1) target molecules have to be expressed on cancer cell membranes but not on normal cells, and (2) notably, their expression on cancer cells must be actively upregulated in response to cellular attack by cancer treatments. As a proof-of-concept, a GRP78-targeting nanovehicle for chemotherapy was designed. Resultant data showed that chemotherapeutic drugs could effectively elevate GRP78 expression on the plasma membranes of cancer cells while having minimal influence on normal cells. DOX pretreatment of cancer cells and tumor tissues can greatly increase the targeting efficacy and therapeutic performance of the prepared GRP78-targeting nanomedicine while somewhat disfavoring the nontargeting counterpart. In vivo and in vitro results demonstrated that this GRP78-targeting nanomedicine could accurately target cancer cells to not only implement chemotherapy but also induce GRP78 upregulation on cancer cells, eventually benefiting continuous cancer-cell-targeted attack by the nanomedicines remaining in the blood circulation or administered in the next dose. The GRP78-targeting nanomedicine displays much better antitumor performance compared with the nontargeting counterpart. SRCT is expected to advance cancer-targeted therapy based on the positive dependency between targeting and therapeutic modalities.
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Affiliation(s)
- Jing-Jie Ye
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Wuyang Yu
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Bo-Ru Xie
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Ke Li
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Miao-Deng Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Xue Dong
- Institute for Advanced Studies, Wuhan University, Wuhan 430072, P.R. China
| | - Zhao-Xia Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Jun Feng
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Xian-Zheng Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
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The histone demthylase KDM3A protects the myocardium from ischemia/reperfusion injury via promotion of ETS1 expression. Commun Biol 2022; 5:270. [PMID: 35338235 PMCID: PMC8956629 DOI: 10.1038/s42003-022-03225-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 03/01/2022] [Indexed: 11/29/2022] Open
Abstract
Our prior studies have characterized the participation of histone demethylase KDM3A in diabetic vascular remodeling, while its roles in myocardial ischemia/reperfusion (I/R) injury (MIRI) remain to be illustrated. Here we show that KDM3A was significantly downregulated in rat I/R and cellular hypoxia/reoxygenation (H/R) models. Subsequently, gain- and loss-of-function experiments were performed to investigate the effects of KDM3A in the settings of MIRI. KDM3A knockout exacerbated cardiac dysfunction and cardiomyocytes injury both in vivo and in vitro. The deteriorated mitochondrial apoptosis, reactive oxygen species, and inflammation were simultaneously observed. Conversely, KDM3A overexpression developed the ameliorated alternations in MIRI. Mechanistically, the MIRI-alleviating effects of KDM3A were associated with the enhancement of ETS1 expression. ChIP-PCR affirmed that KDM3A bound to the ETS1 promoter and removed dimethylation of histone H3 lysine 9 (H3K9me2), thus promoting ETS1 transcription. Our findings suggest that KDM3A is available for alleviating multi-etiologies of MIRI through the regulation of ETS1. Prevention of cardiac injury requires a deeper mechanistic understanding of ischemia/reperfusion (I/R) episodes. Here, the authors find that the epigenetic modifier KDM3A plays a crucial role in myocardial I/R injury through its activation of the gene ETS1 and suggest boosting KDM3A expression could be a potential treatment strategy.
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Zhang W, Li Y, Sun T, Li Z, Manyande A, Xu W, Feng M, Xiang H. Superior cervical ganglionectomy alters gut microbiota in rats. Am J Transl Res 2022; 14:2037-2050. [PMID: 35422915 PMCID: PMC8991167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
The diversity and complexity of sympathetic function highlight the importance of fundamental research. Little is known about the interaction of superior cervical sympathetic ganglion (SCG) and gut microbiota. In this study, the engagement of the sympathetic ganglia with gut microbiota was investigated. Bilateral superior cervical ganglionectomy (SCGx) significantly altered the microbiota composition in rats 14 days post-surgery, and these microbiotas may participate in several biological pathways in the host, suggesting the vital role of the cervical sympathetic ganglion in regulating the microbiome-brain axis, and further confirming that the sympathetic nervous system (SNS) regulates the microbiome-brain axis.
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Affiliation(s)
- Wencui Zhang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
| | - Yujuan Li
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
| | - Tianning Sun
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
| | - Zhixiao Li
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
| | - Anne Manyande
- School of Human and Social Sciences, University of West LondonLondon, UK
| | - Weiguo Xu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
| | - Maohui Feng
- Department of Gastrointestinal Surgery, Wuhan Peritoneal Cancer Clinical Medical Research Center, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study CenterWuhan 430071, Hubei, China
| | - Hongbing Xiang
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan 430030, Hubei, China
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37
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Allu PKR, Kiranmayi M, Mukherjee SD, Chirasani VR, Garg R, Vishnuprabu D, Ravi S, Subramanian L, Sahu BS, Iyer DR, Maghajothi S, Sharma S, Ravi MS, Khullar M, Munirajan AK, Gayen JR, Senapati S, Mullasari AS, Mohan V, Radha V, Naga Prasad SV, Mahapatra NR. Functional Gly297Ser Variant of the Physiological Dysglycemic Peptide Pancreastatin Is a Novel Risk Factor for Cardiometabolic Disorders. Diabetes 2022; 71:538-553. [PMID: 34862200 DOI: 10.2337/db21-0289] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 11/24/2021] [Indexed: 11/13/2022]
Abstract
Pancreastatin (PST), a chromogranin A-derived potent physiological dysglycemic peptide, regulates glucose/insulin homeostasis. We have identified a nonsynonymous functional PST variant (p.Gly297Ser; rs9658664) that occurs in a large section of human populations. Association analysis of this single nucleotide polymorphism with cardiovascular/metabolic disease states in Indian populations (n = 4,300 subjects) displays elevated plasma glucose, glycosylated hemoglobin, diastolic blood pressure, and catecholamines in Gly/Ser subjects as compared with wild-type individuals (Gly/Gly). Consistently, the 297Ser allele confers an increased risk (∼1.3-1.6-fold) for type 2 diabetes/hypertension/coronary artery disease/metabolic syndrome. In corroboration, the variant peptide (PST-297S) displays gain-of-potency in several cellular events relevant for cardiometabolic disorders (e.g., increased expression of gluconeogenic genes, increased catecholamine secretion, and greater inhibition of insulin-stimulated glucose uptake) than the wild-type peptide. Computational docking analysis and molecular dynamics simulations show higher affinity binding of PST-297S peptide with glucose-regulated protein 78 (GRP78) and insulin receptor than the wild-type peptide, providing a mechanistic basis for the enhanced activity of the variant peptide. In vitro binding assays validate these in silico predictions of PST peptides binding to GRP78 and insulin receptor. In conclusion, the PST 297Ser allele influences cardiovascular/metabolic phenotypes and emerges as a novel risk factor for type 2 diabetes/hypertension/coronary artery disease in human populations.
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Affiliation(s)
- Prasanna K R Allu
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Malapaka Kiranmayi
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Sromona D Mukherjee
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | - Venkat R Chirasani
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Richa Garg
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Durairajpandian Vishnuprabu
- Department of Genetics, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
| | - Sudesh Ravi
- Department of Genetics, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
| | - Lakshmi Subramanian
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Bhavani S Sahu
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Dhanya R Iyer
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Sakthisree Maghajothi
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Saurabh Sharma
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Marimuthu S Ravi
- Department of Cardiology, Madras Medical College and Government General Hospital, Chennai, India
| | - Madhu Khullar
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arasambattu K Munirajan
- Department of Genetics, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Chennai, India
| | - Jiaur R Gayen
- Pharmaceutics & Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Sanjib Senapati
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Ajit S Mullasari
- Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, India
| | - Viswanathan Mohan
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, India
| | - Venkatesan Radha
- Department of Molecular Genetics, Madras Diabetes Research Foundation, Chennai, India
| | - Sathyamangala V Naga Prasad
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH
| | - Nitish R Mahapatra
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
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38
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Su E, Yu P, Zhang B, Zhang A, Xie S, Zhang C, Li S, Zou Y, Liu M, Jiang H, Ge J. Endothelial Intracellular ANG (Angiogenin) Protects Against Atherosclerosis by Decreasing Endoplasmic Reticulum Stress. Arterioscler Thromb Vasc Biol 2022; 42:305-325. [PMID: 35045729 DOI: 10.1161/atvbaha.121.317339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND ANG (angiogenin) is essential for cellular adaptation to endoplasmic reticulum (ER) stress, a process closely associated with cardiovascular diseases, including atherosclerosis. We aimed to investigate the role of ANG in the progression of atherosclerosis and elucidate its underlying molecular mechanisms. METHODS We constructed adenoassociated virus 9 ANG overexpression vectors and endothelial ANG- and ApoE (apolipoprotein E)-deficient mice to determine the effects of ANG on ER stress and atherosclerotic lesions. RNA sequencing of endothelial ANG- and ApoE-deficient mice identified ANG-dependent downregulation of ST3GAL5 (ST3 beta-galactoside alpha-2,3-sialyltransferase 5) expression, and the direct regulation of ST3GAL5 by ANG was verified by chromatin immunoprecipitation sequencing and luciferase reporter assay results. RESULTS Reanalysis of expression profiling datasets indicated decreased ANG levels in patients' atherosclerotic lesions, and these data were validated in aortas from ApoE-/- mice. ER stress marker and adhesion molecule levels, aortic root lesions and macrophage deposition were substantially reduced in ApoE-/- mice injected with an adenoassociated virus 9 ANG without signal peptide (ANG-ΔSP) overexpression vector compared with empty and full-length ANG overexpression vectors. Endothelial ANG deficiency significantly elevated ER stress and increased adhesion molecule expression, which aggravated atherosclerotic lesions and enhanced THP-1 monocyte adhesion to endothelial cells in vivo and in vitro, respectively. Furthermore, ANG-ΔSP overexpression significantly attenuated oxidized low-density lipoprotein-induced ER stress and THP-1 monocyte adhesion to endothelial cells, which were reversed by ST3GAL5 inhibition. CONCLUSIONS These results suggest that endothelial intracellular ANG is a novel therapeutic against atherosclerosis and exerts atheroprotective effects via ST3GAL5-mediated ER stress suppression.
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Affiliation(s)
- Enyong Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peng Yu
- Department of Endocrinology and Metabolism (P.Y.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Baoli Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Anjing Zhang
- Department of Neurorehabilitation Medicine, Kongjiang Branch, the First Rehabilitation Hospital of Shanghai, China (A.Z.)
| | - Shiyao Xie
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chunyu Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Su Li
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yunzeng Zou
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ming Liu
- Department of Health Management Center (M.L.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hong Jiang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Junbo Ge
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
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39
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Bao M, Huang W, Zhao Y, Fang X, Zhang Y, Gao F, Huang D, Wang B, Shi G. Verapamil Alleviates Myocardial Ischemia/Reperfusion Injury by Attenuating Oxidative Stress via Activation of SIRT1. Front Pharmacol 2022; 13:822640. [PMID: 35281891 PMCID: PMC8905444 DOI: 10.3389/fphar.2022.822640] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/21/2022] [Indexed: 02/05/2023] Open
Abstract
Myocardial ischemia/reperfusion (I/R) injury is a potential complication of ischemic heart disease after recanalization. One of the primary reasons for I/R injury is the excessive accumulation of reactive oxygen species (ROS) in cardiomyocytes. Verapamil, a classic calcium channel blocker, has the potential to mitigate I/R-evoked oxidative stress. However, the underlying mechanisms have not been fully elucidated. SIRT1 is an essential regulator of I/R and offers resistance to oxidative stress arising from I/R. It is still inconclusive if verapamil can reduce myocardial I/R-triggered oxidative damage through modulating SIRT1 antioxidant signaling. To verify our hypothesis, the H9c2 cardiomyocytes and the mice were treated with verapamil and then exposed to hypoxia/reoxygenation (H/R) or I/R in the presence or absence of the SIRT1 inhibitor EX527. As expected, verapamil stimulated SIRT1 antioxidant signaling evidenced by upregulation of SIRT1, FoxO1, SOD2 expressions and downregulation of Ac-FoxO1 expression in vitro and in vivo. In addition, verapamil remarkably suppressed H/R and I/R-induced oxidative stress proven by declined ROS level and MDA content. The cardioprotective actions of verapamil via SIRT1 were further confirmed in the experiments with the presence of the specific SIRT1 inhibitor EX527. We demonstrated that verapamil alleviated myocardial I/R-evoked oxidative stress partially via activation of SIRT1 antioxidant signaling. Subsequently, verapamil protected against cardiac dysfunction and myocardial infarction accompanied by oxidative stress.
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Affiliation(s)
- Mi Bao
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Weiyi Huang
- Department of Clinical Pharmacy, Shantou University Medical College, Shantou, China
- Pharmaceutical Laboratory, The First Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Yang Zhao
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Xinzhe Fang
- Department of Pharmacology, Shantou University Medical College, Shantou, China
| | - Yanmei Zhang
- Department of Pharmacology, Shantou University Medical College, Shantou, China
- Pharmaceutical Laboratory, The First Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Fenfei Gao
- Department of Pharmacology, Shantou University Medical College, Shantou, China
- Pharmaceutical Laboratory, The First Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Danmei Huang
- Department of Pharmacology, Shantou University Medical College, Shantou, China
- Pharmaceutical Laboratory, The First Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Bin Wang
- Department of Pharmacology, Shantou University Medical College, Shantou, China
- Pharmaceutical Laboratory, The First Affiliated Hospital, Shantou University Medical College, Shantou, China
| | - Ganggang Shi
- Department of Pharmacology, Shantou University Medical College, Shantou, China
- Pharmaceutical Laboratory, The First Affiliated Hospital, Shantou University Medical College, Shantou, China
- Department of Cardiovascular Diseases, The First Affiliated Hospital, Shantou University Medical College, Shantou, China
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40
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Ning J, Wang X, Li N, Cui X, Li N, Zhao B, Miao J, Lin Z. ZBM-H-induced activation of GRP78 ATPase promotes apoptosis via annexin A7 in A549 lung cancer cells. J Cell Biochem 2022; 123:798-806. [PMID: 35118704 DOI: 10.1002/jcb.30224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 12/18/2021] [Accepted: 01/18/2022] [Indexed: 12/17/2022]
Abstract
Hypochlorous acid (HOCl) is an essential signal for the regulation of cancer cell fate, including autophagy and apoptosis. HOCl regulated autophagy by affecting the oxidation modification of glucose-regulated protein 78 (GRP78) and the activity of GRP78 ATPase. The mechanism of GRP78 ATPase in cell apoptosis has however not yet been clarified. Here we reported that ZBM-H, as a probe of HOCl, was able to directly bind to GRP78 in the presence or absence of ATP. Following ZBM-H treatment, the interaction between GRP78 and annexin A7 (ANXA7) was promoted, and this was accompanied by increased phosphorylation of integrin β4 (ITGB4). In addition, ZBM-H enhanced the phosphorylation of ANXA7. ABO, an inhibitor of ANXA7, inhibited ZBM-H-induced ITGB4 phosphorylation and apoptosis, while ANXA7 activator SEC had opposite effect. Collectively, these data provide new evidence for the mechanism by which ZBM-H-induced activation of GRP78 ATPase regulates apoptosis of A549 lung cancer cells.
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Affiliation(s)
- Junya Ning
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, China.,Department of Physiology, Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, China
| | - Xiaotan Wang
- The First Clinical Medical School, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Nan Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, China
| | - Xiaoling Cui
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, China
| | - Na Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, China
| | - Baoxiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Junying Miao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Science, Shandong University, Qingdao, China
| | - Zhaomin Lin
- Central Research Laboratory, The Second Hospital, Shandong University, Jinan, China
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41
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Lin J, Li Q, Jin T, Wang J, Gong Y, Lv Q, Wang M, Chen J, Shang M, Zhao Y, Fu G. Cardiomyocyte IL-1R2 protects heart from ischemia/reperfusion injury by attenuating IL-17RA-mediated cardiomyocyte apoptosis. Cell Death Dis 2022; 13:90. [PMID: 35087030 PMCID: PMC8795442 DOI: 10.1038/s41419-022-04533-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 12/17/2021] [Accepted: 01/13/2022] [Indexed: 12/30/2022]
Abstract
Myocardial ischemia reperfusion (I/R) injury is a complex process with intense inflammatory response and cardiomyocyte apoptosis. As a decoy receptor of IL-1β, Interleukin-1 receptor type 2 (IL-1R2) inhibits IL-1β signaling. However, its role in I/R injury remains unknown. Here we found that the serum levels of IL-1R2 were significantly increased in patients with acute myocardial infarction (AMI) following interventional therapy. Similarly, after myocardial I/R surgery, IL-1R2 expression was significantly increased in heart of wild-type mice. In addition, IL-1R2-deficient mice heart showed enlarged infarct size, increased cardiomyocyte apoptosis together with reduced cardiac systolic function. Following exposure to hypoxia and reoxygenation (H/R), neonatal rat ventricular myocytes (NRVM) significantly increased IL-1R2 expression relying on NF-κB activation. Consistently, IL-1R2-deficient mice increased immune cells infiltrating into heart after surgery, which was relevant with cardiac damage. Additionally, IL-1R2 overexpression in cardiomyocyte protected cardiomyocyte against apoptosis through reducing the IL-17RA expression both in vivo and in vitro. Our results indicate that IL-1R2 protects cardiomyocytes from apoptosis, which provides a therapeutic approach to turn down myocardial I/R injury.
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Affiliation(s)
- Jun Lin
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Qinfeng Li
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Tingting Jin
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Jiacheng Wang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Yingchao Gong
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Qingbo Lv
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Meihui Wang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Jiawen Chen
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China
| | - Min Shang
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China. .,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China.
| | - Yanbo Zhao
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China. .,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China.
| | - Guosheng Fu
- Department of Cardiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China. .,Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Hangzhou, China.
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Glucose-regulated protein 78 modulates cell growth, epithelial-mesenchymal transition, and oxidative stress in the hyperplastic prostate. Cell Death Dis 2022; 13:78. [PMID: 35075122 PMCID: PMC8786955 DOI: 10.1038/s41419-022-04522-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 12/14/2021] [Accepted: 01/11/2022] [Indexed: 01/11/2023]
Abstract
Benign prostatic hyperplasia (BPH) is a chronic condition which mainly affects elderly males. Existing scientific evidences have not completely revealed the pathogenesis of BPH. Glucose-regulated protein 78 (GRP78) is a member of the heat shock protein 70 superfamily, which serves as an important regulator in many diseases. This study aims at elucidating the role of GRP78 in the BPH process. Human prostate tissues, cultured human prostate cell lines (BPH-1 and WPMY-1) and clinical data from BPH patients were utilized. The expression and localization of GRP78 were determined with quantitative real time PCR (qRT-PCR), Western blotting and immunofluorescence staining. GRP78 knockdown and overexpression cell models were created with GRP78 siRNA and GRP78 plasmid transfection. With these models, cell viability, apoptosis rate, as well as marker levels for epithelial-mesenchymal transition (EMT) and oxidative stress (OS) were detected by CCK8 assay, flow cytometry analysis and Western blotting respectively. AKT/mTOR and MAPK/ERK pathways were also evaluated. Results showed GRP78 was localized in the epithelium and stroma of the prostate, with higher expression in BPH tissues. There was no significant difference in GRP78 expression between BPH-1 and WPMY-1 cell lines. In addition, GRP78 knockdown (KD) slowed cell growth and induced apoptosis, without effects on the cell cycle stage of both cell lines. Lack of GRP78 affected expression levels of markers for EMT and OS. Consistently, overexpression of GRP78 completely reversed all effects of knocking down GRP78. We further found that GRP78 modulated cell growth and OS via AKT/mTOR signaling, rather than the MAPK/ERK pathway. Overall, our novel data demonstrates that GRP78 plays a significant role in the development of BPH and suggests that GRP78 might be rediscovered as a new target for treatment of BPH.
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Kubra KT, Uddin MA, Barabutis N. Tunicamycin Protects against LPS-Induced Lung Injury. Pharmaceuticals (Basel) 2022; 15:ph15020134. [PMID: 35215247 PMCID: PMC8876572 DOI: 10.3390/ph15020134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/16/2022] [Accepted: 01/21/2022] [Indexed: 12/29/2022] Open
Abstract
The pulmonary endothelium is a dynamic semipermeable barrier that orchestrates tissue-fluid homeostasis; regulating physiological and immunological responses. Endothelial abnormalities are caused by inflammatory stimuli interacting with intracellular messengers to remodel cytoskeletal junctions and adhesion proteins. Those phenomena are associated with sepsis, acute lung injury, and acute respiratory distress syndrome. The molecular processes beyond those responses are the main interest of our group. Unfolded protein response (UPR) is a highly conserved molecular pathway resolving protein-folding defects to counteract cellular threats. An emerging body of evidence suggests that UPR is a promising target against lung and cardiovascular disease. In the present study, we reveal that Tunicamycin (TM) (UPR inducer) protects against lipopolysaccharide (LPS)-induced injury. The barrier function of the inflamed endothelium was evaluated in vitro (transendothelial and paracellular permeability); as well as in mice exposed to TM after LPS. Our study demonstrates that TM supports vascular barrier function by modulating actomyosin remodeling. Moreover, it reduces the internalization of vascular endothelial cadherin (VE-cadherin), enhancing endothelial integrity. We suggest that UPR activation may deliver novel therapeutic opportunities in diseases related to endothelial dysregulation.
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Wang T, Zhou J, Zhang X, Wu Y, Jin K, Wang Y, Xu R, Yang G, Li W, Jiao L. X-box Binding Protein 1: An Adaptor in the Pathogenesis of Atherosclerosis. Aging Dis 2022; 14:350-369. [PMID: 37008067 PMCID: PMC10017146 DOI: 10.14336/ad.2022.0824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/24/2022] [Indexed: 11/18/2022] Open
Abstract
Atherosclerosis (AS), the formation of fibrofatty lesions in the vessel wall, is the primary cause of heart disease and stroke and is closely associated with aging. Disrupted metabolic homeostasis is a primary feature of AS and leads to endoplasmic reticulum (ER) stress, which is an abnormal accumulation of unfolded proteins. By orchestrating signaling cascades of the unfolded protein response (UPR), ER stress functions as a double-edged sword in AS, where adaptive UPR triggers synthetic metabolic processes to restore homeostasis, whereas the maladaptive response programs the cell to the apoptotic pathway. However, little is known regarding their precise coordination. Herein, an advanced understanding of the role of UPR in the pathological process of AS is reviewed. In particular, we focused on a critical mediator of the UPR, X-box binding protein 1 (XBP1), and its important role in balancing adaptive and maladaptive responses. The XBP1 mRNA is processed from the unspliced isoform (XBP1u) to the spliced isoform of XBP1 (XBP1s). Compared with XBP1u, XBP1s predominantly functions downstream of inositol-requiring enzyme-1α (IRE1α) and transcript genes involved in protein quality control, inflammation, lipid metabolism, carbohydrate metabolism, and calcification, which are critical for the pathogenesis of AS. Thus, the IRE1α/XBP1 axis is a promising pharmaceutical candidate against AS.
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Affiliation(s)
- Tao Wang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
- China International Neuroscience Institute (China-INI), Beijing, China.
| | - Jia Zhou
- Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
| | - Xiao Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
- China International Neuroscience Institute (China-INI), Beijing, China.
| | - Yujie Wu
- Laboratory of Computational Biology and Machine Intelligence, National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China.
| | - Kehan Jin
- Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
| | - Yilin Wang
- Institute of Cerebrovascular Disease Research and Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China.
| | - Ran Xu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
- China International Neuroscience Institute (China-INI), Beijing, China.
| | - Ge Yang
- Laboratory of Computational Biology and Machine Intelligence, National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China.
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, China.
- Correspondence should be addressed to: Dr. Ge Yang, Chinese Academy of Sciences, Beijing, China. , Dr. Wenjing Li, Chinese Academy of Sciences, Beijing, China. ; Dr. Liqun Jiao, Xuanwu Hospital, Capital Medical University, Beijing, China. .
| | - Wenjing Li
- Laboratory of Computational Biology and Machine Intelligence, National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China.
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, China.
- Correspondence should be addressed to: Dr. Ge Yang, Chinese Academy of Sciences, Beijing, China. , Dr. Wenjing Li, Chinese Academy of Sciences, Beijing, China. ; Dr. Liqun Jiao, Xuanwu Hospital, Capital Medical University, Beijing, China. .
| | - Liqun Jiao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China.
- China International Neuroscience Institute (China-INI), Beijing, China.
- Department of Interventional Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China.
- Correspondence should be addressed to: Dr. Ge Yang, Chinese Academy of Sciences, Beijing, China. , Dr. Wenjing Li, Chinese Academy of Sciences, Beijing, China. ; Dr. Liqun Jiao, Xuanwu Hospital, Capital Medical University, Beijing, China. .
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45
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Chen Y, Cao S, Chen H, Yin C, Xu X, Yang Z. Dexmedetomidine Preconditioning Reduces Myocardial Ischemia-Reperfusion Injury in Rats by Inhibiting the PERK Pathway. Arq Bras Cardiol 2021; 117:1134-1144. [PMID: 34644786 PMCID: PMC8757152 DOI: 10.36660/abc.20200672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 10/27/2020] [Accepted: 01/27/2021] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Ischemic heart disease has attracted much attention due to its high mortality rates, treatment costs and the increasing morbidity in the young population. Strategies for reperfusion have reduced mortality. However, reperfusion can lead to cardiomyocyte death and subsequent irreversible myocardial damage. At present, the timely and targeted treatment of ischemia-reperfusion (I/R) injury is often lacking. OBJECTIVES To evaluate if dexmedetomidine (DEX) has a protective effect in myocardiual I/R and explore the possible mechanism behind it. METHODS Rat hearts were perfused with a Langendorff perfusion system, and randomly assigned to five groups: control group, perfused with Krebs-Henseleit (K-H) solution for 205 minutes without ischemia; and four test groups that underwent 40 minutes of global ischemia and 120 min of reperfusion. The DEX group, the yohimbine (YOH) group and the DEX + YOH group were perfused with DEX (10 nM), YOH (1 μM) or the combination of DEX and YOH prior to reperfusion, respectively. Cardiac hemodynamics, myocardial infarct size, and myocardial histology were evaluated. The expression of glucose-related protein 78 (GRP78), protein kinase R-like ER kinase (PERK), phosphorylated PERK, eukaryotic initiation factor 2α (eIF2α), phosphorylated eIF2α, activating transcription factor 4 (ATF4), and CCAAT/enhancer-binding protein homologous protein (CHOP) were assessed. P<0.05 was considered to indicate a statistically significant difference. RESULTS DEX preconditioning improved the cardiac function of I/R hearts, reduced myocardial infarction, myocardial apoptosis, and the expression of GRP78, p-PERK, eIF2α, p-eIF2α, ATF4 and CHOP. CONCLUSIONS DEX pretreatment reduced myocardial I/R injury by suppressing apoptosis, which was induced by the PERK pathway.
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Affiliation(s)
- YuJiao Chen
- Zunyi Medical UniversityZunyiGuizhouChinaZunyi Medical University, Zunyi, Guizhou – China
- Affiliated HospitalNorth Sichuan Medical CollegeNanChongSiChuanChinaAffiliated Hospital of North Sichuan Medical College, NanChong, SiChuan - China
| | - Song Cao
- Zunyi Medical UniversityZunyiGuizhouChinaZunyi Medical University, Zunyi, Guizhou – China
| | - Hui Chen
- Zunyi Medical UniversityZunyiGuizhouChinaZunyi Medical University, Zunyi, Guizhou – China
| | - CunZhi Yin
- Zunyi Medical UniversityZunyiGuizhouChinaZunyi Medical University, Zunyi, Guizhou – China
| | - XinPeng Xu
- Zunyi Medical UniversityZunyiGuizhouChinaZunyi Medical University, Zunyi, Guizhou – China
| | - ZaiQun Yang
- Zunyi Medical UniversityZunyiGuizhouChinaZunyi Medical University, Zunyi, Guizhou – China
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Ajoolabady A, Wang S, Kroemer G, Klionsky DJ, Uversky VN, Sowers JR, Aslkhodapasandhokmabad H, Bi Y, Ge J, Ren J. ER Stress in Cardiometabolic Diseases: From Molecular Mechanisms to Therapeutics. Endocr Rev 2021; 42:839-871. [PMID: 33693711 DOI: 10.1210/endrev/bnab006] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 02/08/2023]
Abstract
The endoplasmic reticulum (ER) hosts linear polypeptides and fosters natural folding of proteins through ER-residing chaperones and enzymes. Failure of the ER to align and compose proper protein architecture leads to accumulation of misfolded/unfolded proteins in the ER lumen, which disturbs ER homeostasis to provoke ER stress. Presence of ER stress initiates the cytoprotective unfolded protein response (UPR) to restore ER homeostasis or instigates a rather maladaptive UPR to promote cell death. Although a wide array of cellular processes such as persistent autophagy, dysregulated mitophagy, and secretion of proinflammatory cytokines may contribute to the onset and progression of cardiometabolic diseases, it is well perceived that ER stress also evokes the onset and development of cardiometabolic diseases, particularly cardiovascular diseases (CVDs), diabetes mellitus, obesity, and chronic kidney disease (CKD). Meanwhile, these pathological conditions further aggravate ER stress, creating a rather vicious cycle. Here in this review, we aimed at summarizing and updating the available information on ER stress in CVDs, diabetes mellitus, obesity, and CKD, hoping to offer novel insights for the management of these cardiometabolic comorbidities through regulation of ER stress.
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Affiliation(s)
- Amir Ajoolabady
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
| | - Shuyi Wang
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
- School of Medicine Shanghai University, Shanghai 200444, China
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, Equipe labellisée par la Ligue contre le cancer, Université de Paris, Sorbonne Université, Inserm U1138, Institut Universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
- Suzhou Institute for Systems Medicine, Chinese Academy of Medical Sciences, Suzhou, China
- Karolinska Institute, Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel J Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Vladimir N Uversky
- Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, Florida 33612, USA
| | - James R Sowers
- Dalton and Diabetes and Cardiovascular Center, University of Missouri Columbia, Columbia, Missouri 65212, USA
| | | | - Yaguang Bi
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
| | - Jun Ren
- University of Wyoming College of Health Sciences, Laramie, Wyoming 82071, USA
- Shanghai Institute of Cardiovascular Diseases, Department of Cardiology, Zhongshan Hospital Fudan University, Shanghai 200032, China
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington 98195, USA
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Jiang H, Ding D, He Y, Li X, Xu Y, Liu X. Xbp1s-Ddit3 promotes MCT-induced pulmonary hypertension. Clin Sci (Lond) 2021; 135:2467-2481. [PMID: 34676402 PMCID: PMC8564003 DOI: 10.1042/cs20210612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/13/2021] [Accepted: 10/21/2021] [Indexed: 12/12/2022]
Abstract
Pulmonary hypertension (PH) is a life-threatening disease characterized by vascular remodeling. Exploring new therapy target is urgent. The purpose of the present study is to investigate whether and how spliced x-box binding protein 1 (xbp1s), a key component of endoplasmic reticulum stress (ERS), contributes to the pathogenesis of PH. Forty male SD rats were randomly assigned to four groups: Control, Monocrotaline (MCT), MCT+AAV-CTL (control), and MCT+AAV-xbp1s. The xbp1s protein levels were found to be elevated in lung tissues of the MCT group. Intratracheal injection of adeno-associated virus serotype 1 carrying xbp1s shRNA (AAV-xbp1s) to knock down the expression of xbp1s effectively ameliorated the MCT-induced elevation of right ventricular systolic pressure (RVSP), total pulmonary resistance (TPR), right ventricular hypertrophy and medial wall thickness of muscularized distal pulmonary arterioles. The abnormally increased positive staining rates of proliferating cell nuclear antigen (PCNA) and Ki67 and decreased positive staining rates of terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) in pulmonary arterioles were also reversed in the MCT+AAV-xbp1s group. For mechanistic exploration, bioinformatics prediction of the protein network was performed on the STRING database, and further verification was performed by qRT-PCR, Western blots and co-immunoprecipitation (Co-IP). DNA damage-inducible transcript 3 (Ddit3) was identified as a downstream protein that interacted with xbp1s. Overexpression of Ddit3 restored the decreased proliferation, migration and cell viability caused by silencing of xbp1s. The protein level of Ddit3 was also highly consistent with xbp1s in the animal model. Taken together, our study demonstrated that xbp1s-Ddit3 may be a potential target to interfere with vascular remodeling in PH.
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MESH Headings
- Animals
- Apoptosis
- Arterial Pressure
- Cell Movement
- Cell Proliferation
- Cells, Cultured
- Disease Models, Animal
- Hypertension, Pulmonary/chemically induced
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/physiopathology
- Hypertrophy, Right Ventricular/chemically induced
- Hypertrophy, Right Ventricular/metabolism
- Hypertrophy, Right Ventricular/physiopathology
- Male
- Monocrotaline
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/metabolism
- Pulmonary Artery/metabolism
- Pulmonary Artery/physiopathology
- Rats, Sprague-Dawley
- Signal Transduction
- Transcription Factor CHOP/genetics
- Transcription Factor CHOP/metabolism
- Vascular Remodeling
- Ventricular Dysfunction, Right/chemically induced
- Ventricular Dysfunction, Right/metabolism
- Ventricular Dysfunction, Right/physiopathology
- Ventricular Function, Right
- X-Box Binding Protein 1/genetics
- X-Box Binding Protein 1/metabolism
- Rats
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Affiliation(s)
- Hongxia Jiang
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Dandan Ding
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Yuanzhou He
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Xiaochen Li
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Yongjian Xu
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
| | - Xiansheng Liu
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Key Laboratory of Pulmonary Diseases, National Ministry of Health of The People's Republic of China, Wuhan, China
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Zhang G, Wang X, Li C, Li Q, An YA, Luo X, Deng Y, Gillette TG, Scherer PE, Wang ZV. Integrated Stress Response Couples Mitochondrial Protein Translation With Oxidative Stress Control. Circulation 2021; 144:1500-1515. [PMID: 34583519 PMCID: PMC8563444 DOI: 10.1161/circulationaha.120.053125] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND The integrated stress response (ISR) is an evolutionarily conserved process to cope with intracellular and extracellular disturbances. Myocardial infarction is a leading cause of death worldwide. Coronary artery reperfusion, the most effective means to mitigate cardiac damage of myocardial infarction, causes additional reperfusion injury. This study aimed to investigate the role of the ISR in myocardial ischemia/reperfusion (I/R). METHODS Cardiac-specific gain- and loss-of-function approaches for the ISR were used in vivo. Myocardial I/R was achieved by ligation of the cardiac left anterior descending artery for 45 minutes followed by reperfusion for different times. Cardiac function was assessed by echocardiography. Cultured H9c2 cells, primary rat cardiomyocytes, and mouse embryonic fibroblasts were used to dissect underlying molecular mechanisms. Tandem mass tag labeling and mass spectrometry was conducted to identify protein targets of the ISR. Pharmacologic means were tested to manipulate the ISR for therapeutic exploration. RESULTS We show that the PERK (PKR-like endoplasmic reticulum resident kinase)/eIF2α (α subunit of eukaryotic initiation factor 2) axis of the ISR is strongly induced by I/R in cardiomyocytes in vitro and in vivo. We further reveal a physiologic role of PERK/eIF2α signaling by showing that acute activation of PERK in the heart confers robust cardioprotection against reperfusion injury. In contrast, cardiac-specific deletion of PERK aggravates cardiac responses to reperfusion. Mechanistically, the ISR directly targets mitochondrial complexes through translational suppression. We identify NDUFAF2 (NADH:ubiquinone oxidoreductase complex assembly factor 2), an assembly factor of mitochondrial complex I, as a selective target of PERK. Overexpression of PERK suppresses the protein expression of NDUFAF2 and PERK inhibition causes an increase of NDUFAF2. Silencing of NDUFAF2 significantly rescues cardiac cell survival from PERK knockdown under I/R. We show that activation of PERK/eIF2α signaling reduces mitochondrial complex-derived reactive oxygen species and improves cardiac cell survival in response to I/R. Moreover, pharmacologic stimulation of the ISR protects the heart against reperfusion damage, even after the restoration of occluded coronary artery, highlighting clinical relevance for myocardial infarction treatment. CONCLUSIONS These results suggest that the ISR improves cell survival and mitigates reperfusion damage by selectively suppressing mitochondrial protein synthesis and reducing oxidative stress in the heart.
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Affiliation(s)
- Guangyu Zhang
- Division of Cardiology (G.Z., X.W., C.L., Q.L., X.L., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Xiaoding Wang
- Division of Cardiology (G.Z., X.W., C.L., Q.L., X.L., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Chao Li
- Division of Cardiology (G.Z., X.W., C.L., Q.L., X.L., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Qinfeng Li
- Division of Cardiology (G.Z., X.W., C.L., Q.L., X.L., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Yu A An
- Touchstone Diabetes Center (Y.A.A., Y.D., P.E.S.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Xiang Luo
- Division of Cardiology (G.Z., X.W., C.L., Q.L., X.L., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Yingfeng Deng
- Touchstone Diabetes Center (Y.A.A., Y.D., P.E.S.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Thomas G Gillette
- Division of Cardiology (G.Z., X.W., C.L., Q.L., X.L., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Philipp E Scherer
- Touchstone Diabetes Center (Y.A.A., Y.D., P.E.S.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
| | - Zhao V Wang
- Division of Cardiology (G.Z., X.W., C.L., Q.L., X.L., T.G.G., Z.V.W.), Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
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Zhou X, Yang M, Lv Y, Li H, Wu S, Min J, Shen G, He Y, Lei P. Adoptive transfer of GRP78-treated dendritic cells alleviates insulitis in NOD mice. J Leukoc Biol 2021; 110:1023-1031. [PMID: 34643294 DOI: 10.1002/jlb.3ma0921-219rrrr] [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: 04/27/2020] [Revised: 09/18/2021] [Accepted: 09/23/2021] [Indexed: 11/09/2022] Open
Abstract
The 78-kDa glucose-regulated protein (GRP78) has extracellular, anti-inflammatory properties that can aid resolving inflammation. It has been established previously that GRP78 induced myeloid CD11c+ cell differentiation into distinct tolerogenic cells. This tolerance induction makes GRP78 a potential therapeutic agent for transplanted allogeneic grafts and autoimmune diseases, such as type 1 diabetes. In this research, it is revealed that rmGRP78-treated NOD mice bone marrow-derived CD11c+ cells (GRP78-DCs) highly expressed B7-H4 but down-regulated CD86 and CD40, and retained a tolerogenic signature even after stimulation by LPS. In the assessment of in vivo therapeutic efficacy after the adoptive transfer of GRP78-DCs into NOD mice, fluorescent imaging analyses revealed that the transfer specifically homed in inflamed pancreases, promoting β-cell survival and alleviating insulitis in NOD mice. The adoptive transfer of GRP78-DCs also helped reduce Th1, Th17, and CTL, suppressing inflammatory cytokine production in vivo. The findings suggest that adoptive GRP78-DC transfer is critical to resolving inflammation in NOD mice and may have relevance in a clinical setting.
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Affiliation(s)
- Xiaoqi Zhou
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Nuclear Medicine and PET Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Muyang Yang
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,College of Biomedicine and Health and College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Yibing Lv
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heli Li
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sha Wu
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangdong Provincial Key Laboratory of Proteomics, Guangzhou, China
| | - Jie Min
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Guanxin Shen
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong He
- Department of Nuclear Medicine and PET Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ping Lei
- Department of Immunology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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50
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Calderon-Dominguez M, Mangas A, Belmonte T, Quezada-Feijoo M, Ramos M, Toro R. Fisiopatología de la miocardiopatía dilatada isquémica a través del microRNA-16-5p. Rev Esp Cardiol 2021. [DOI: 10.1016/j.recesp.2020.08.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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