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He TQ, Wang Z, Li CY, Zhao YW, Tong XY, Liu JH, Ouyang JM. Sulfated Laminarin Polysaccharides Reduce the Adhesion of Nano-COM Crystals to Renal Epithelial Cells by Inhibiting Oxidative and Endoplasmic Reticulum Stress. Pharmaceuticals (Basel) 2024; 17:805. [PMID: 38931471 PMCID: PMC11206474 DOI: 10.3390/ph17060805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/19/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Purpose: Adhesion between calcium oxalate crystals and renal tubular epithelial cells is a vital cause of renal stone formation; however, the drugs that inhibit crystal adhesion and the mechanism of inhibition have yet to be explored. Methods: The cell injury model was constructed using nano-COM crystals, and changes in oxidative stress levels, endoplasmic reticulum (ER) stress levels, downstream p38 MAPK protein expression, apoptosis, adhesion protein osteopontin expression, and cell-crystal adhesion were examined in the presence of Laminarin polysaccharide (DLP) and sulfated DLP (SDLP) under protected and unprotected conditions. Results: Both DLP and SDLP inhibited nano-COM damage to human kidney proximal tubular epithelial cell (HK-2), increased cell viability, decreased ROS levels, reduced the opening of mitochondrial membrane permeability transition pore, markedly reduced ER Ca2+ ion concentration and adhesion molecule OPN expression, down-regulated the expression of ER stress signature proteins including CHOP, Caspase 12, and p38 MAPK, and decreased the apoptosis rate of cells. SDLP has a better protective effect on cells than DLP. Conclusions: SDLP protects HK-2 cells from nano-COM crystal-induced apoptosis by reducing oxidative and ER stress levels and their downstream factors, thereby reducing crystal-cell adhesion interactions and the risks of kidney stone formation.
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Affiliation(s)
- Tian-Qu He
- Department of Urology, The Affiliated Children’s Hospital of Xiangya School of Medicine, Central South University (Hunan Children’s Hospital), Changsha 410007, China
| | - Zhi Wang
- Department of Urology, The Affiliated Children’s Hospital of Xiangya School of Medicine, Central South University (Hunan Children’s Hospital), Changsha 410007, China
| | - Chuang-Ye Li
- Department of Urology, The Affiliated Children’s Hospital of Xiangya School of Medicine, Central South University (Hunan Children’s Hospital), Changsha 410007, China
| | - Yao-Wang Zhao
- Department of Urology, The Affiliated Children’s Hospital of Xiangya School of Medicine, Central South University (Hunan Children’s Hospital), Changsha 410007, China
| | - Xin-Yi Tong
- Institute of Biomineralization and Lithiasis Research, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Jing-Hong Liu
- Institute of Biomineralization and Lithiasis Research, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
| | - Jian-Ming Ouyang
- Institute of Biomineralization and Lithiasis Research, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, China
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Wang Y, Wang T, Ma T, Zhao J, Qi W. Shexiang tongxin dropping pill alleviates myocardial injury induced by coronary microembolization by down-regulating APOC1 to inhibit STAT3 signaling pathway. Aging (Albany NY) 2024; 16:8484-8496. [PMID: 38771126 PMCID: PMC11164485 DOI: 10.18632/aging.205796] [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: 05/31/2023] [Accepted: 03/03/2024] [Indexed: 05/22/2024]
Abstract
AIM This study determines to validate the mechanism of Shexiang Tongxin dropping pill (STDP) in attenuating coronary microembolization (CME) induced myocardial injury. METHODS CME rat models were established and underwent corresponding treating. Gene chip analysis was performed in rat myocardial tissues for GO and KEGG enrichment analysis. The differentially expressed genes were detected by qRT-PCR. H&E staining and ELISA were used for pathological analysis and detection of troponin (cTnI) and Creatine Kinase Isoenzyme (CK-MB). Lipopolysaccharide (LPS) treated primary cardiomyocytes were used to mimic inflammatory in vitro models. Cell viability and apoptosis of cardiomyocytes were determined by MTT and flow cytometry. The expressions of inflammatory cytokines, apoptotic proteins and proteins related to the STAT3 signal pathway were detected by western blot. APOC1 mRNA expression was detected by qRT-PCR. Immunofluorescence (IF) was used for subcellular localization of p-STAT3 and the binding of APOC1 with STAT3 was verified using Co-IP. RESULTS STDP can attenuate myocardial injury in CME rat models, and lead to decreased expression of APOC1 and suppressed STAT3 signal pathway. In vitro models found STDP can suppress the cell viability and cell apoptosis of primary cardiomyocytes, in addition to suppressing the secretions of IL-6, IL-1β and TNF-α, while the protective effect of STDP can be reversed by overexpression of APOC1. Co-IP found that APOC1 can bind STAT3 directly. APOC1 can increase p-STAT3 expression in the nucleus to activate the STAT3 signal pathway. CONCLUSIONS STDP can suppress APOC1 and STAT3 signal pathway to inhibit inflammation and cell apoptosis of cardiomyocytes. APOC1 may be one of the key regulatory factors in CME-induced myocardial injury.
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Affiliation(s)
- Yangui Wang
- Department of General Practice, Shanghai Pudong New Area People’s Hospital, Pudong New Area 201299, Shanghai, P.R. China
| | - Tao Wang
- Department of General Practice, Shanghai Pudong New Area People’s Hospital, Pudong New Area 201299, Shanghai, P.R. China
| | - Tingting Ma
- Department of General Practice, Shanghai Pudong New Area People’s Hospital, Pudong New Area 201299, Shanghai, P.R. China
| | - Jin Zhao
- Department of General Practice, Shanghai Pudong New Area People’s Hospital, Pudong New Area 201299, Shanghai, P.R. China
| | - Weigang Qi
- Department of General Practice, Shanghai Pudong New Area People’s Hospital, Pudong New Area 201299, Shanghai, P.R. China
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Zhang H, Zheng C, Xu Y, Hu X. Comprehensive molecular and cellular characterization of endoplasmic reticulum stress-related key genes in renal ischemia/reperfusion injury. Front Immunol 2024; 15:1340997. [PMID: 38495888 PMCID: PMC10940334 DOI: 10.3389/fimmu.2024.1340997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 02/19/2024] [Indexed: 03/19/2024] Open
Abstract
Background Renal ischemia-reperfusion injury (RIRI) is an inevitable complication in the process of kidney transplantation and lacks specific therapy. The study aims to determine the underlying mechanisms of RIRI to uncover a promising target for efficient renoprotection. Method Four bulk RNA-seq datasets including 495 renal samples of pre- and post-reperfusion were collected from the GEO database. The machine learning algorithms were utilized to ascertain pivotal endoplasmic reticulum stress genes. Then, we incorporated correlation analysis and determined the interaction pathways of these key genes. Considering the heterogeneous nature of bulk-RNA analysis, the single-cell RNA-seq analysis was performed to investigate the mechanisms of key genes at the single-cell level. Besides, 4-PBA was applied to inhibit endoplasmic reticulum stress and hence validate the pathological role of these key genes in RIRI. Finally, three clinical datasets with transcriptomic profiles were used to assess the prognostic role of these key genes in renal allograft outcomes after RIRI. Results In the bulk-RNA analysis, endoplasmic reticulum stress was identified as the top enriched pathway and three endoplasmic reticulum stress-related genes (PPP1R15A, JUN, and ATF3) were ranked as top performers in both LASSO and Boruta analyses. The three genes were found to significantly interact with kidney injury-related pathways, including apoptosis, inflammatory response, oxidative stress, and pyroptosis. For oxidative stress, these genes were more strongly related to oxidative markers compared with antioxidant markers. In single-cell transcriptome, the three genes were primarily upregulated in endothelium, distal convoluted tubule cells, and collecting duct principal cells among 12 cell types of renal tissues in RIRI. Furthermore, distal convoluted tubule cells and collecting duct principal cells exhibited pro-inflammatory status and the highest pyroptosis levels, suggesting their potential as main effectors of three key genes for mediating RIRI-associated injuries. Importantly, inhibition of these key genes using 4-phenyl butyric acid alleviated functional and histological damage in a mouse RIRI model. Finally, the three genes demonstrated highly prognostic value in predicting graft survival outcomes. Conclusion The study identified three key endoplasmic reticulum stress-related genes and demonstrated their prognostic value for graft survival, providing references for individualized clinical prevention and treatment of postoperative complications after renal transplantation.
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Affiliation(s)
- Hao Zhang
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Chaoyue Zheng
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Yue Xu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
| | - Xiaopeng Hu
- Department of Urology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- Institute of Urology, Capital Medical University, Beijing, China
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Liu T, Shu J, Liu Y, Xie J, Li T, Li H, Li L. Atorvastatin attenuates ferroptosis-dependent myocardial injury and inflammation following coronary microembolization via the Hif1a/Ptgs2 pathway. Front Pharmacol 2022; 13:1057583. [PMID: 36569299 PMCID: PMC9772535 DOI: 10.3389/fphar.2022.1057583] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/24/2022] [Indexed: 12/13/2022] Open
Abstract
Objectives: Coronary microembolization (CME) represents a serious periprocedural complication after percutaneous coronary intervention. Ferroptosis has been identified in multiple cardiovascular diseases. In this study, we aimed to investigate the effects of atorvastatin (ATV) on ferroptosis and inflammation following CME and elucidate the underlying mechanism. Methods: We established a rat model of CME by injecting microspheres into the left ventricle. Deferoxamine (DFO), a selective ferroptosis inhibitor, or ATV was pretreated before modeling. Cardiac function and cardiac troponin T (cTnT) levels were detected. Levels of ferroptosis-associated genes, malondialdehyde (MDA), glutathione (GSH), and ferrous iron (Fe2+) were measured to validate ferroptosis. Levels of tumor necrosis factor alpha (TNF-α) and interleukin 1 beta (IL-1β) were assayed to determine the inflammation. Chromatin immunoprecipitation was performed to determine the binding of hypoxia-inducible factor 1 subunit alpha (Hif1a) to the promoter of prostaglandin-endoperoxide synthase-2 (Ptgs2). Results: Ferroptosis and inflammation were induced following CME with increased levels of MDA (∼2.5 fold, p < 0.01), Fe2+ (∼1.5 fold, p < 0.01), TNF-α, and IL-1β and decreased GSH levels (∼42%, p < 0.01). Meanwhile, the level of Ptgs2 was significantly increased, while those of glutathione peroxidase 4 (Gpx4) and solute carrier family 7 member 11 (Slc7a11) were decreased. The level of cTnT was increased by 7-fold (p < 0.01). Left ventricular ejection fraction (LVEF) was significantly reduced (∼85% in the sham group versus ∼45% in the CME group, p < 0.01). DFO or Ptgs2 silencing inhibited the increase of MDA, Ptgs2, TNF-α, and IL-1β, and induced the levels of GSH and Gpx4, followed by reduction in cTnT levels by approximately 50% (p < 0.01). LVEF was improved by approximately 2 fold (p < 0.01). Mechanistically, the transcription factor Hif1a bound to the promoter of Ptgs2 and upregulated its expression. In addition, ATV inhibited the activation of the Hif1a/Ptgs2 axis and attenuated cardiac ferroptosis and inflammation, thus ameliorating CME-induced myocardial injury (LVEF, ∼34% elevation; cTnT, ∼1.8 fold decrease, p < 0.01). Conclusion: Atorvastatin ameliorates ferroptosis-mediated myocardial injury and inflammation following CME via the Hif1a/Ptgs2 pathway.
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Affiliation(s)
- Tao Liu
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jin Shu
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yangchun Liu
- Cardiothoracic Surgery Intensive Care Unit, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jian Xie
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Tao Li
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Haoliang Li
- Department of Cardiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lang Li
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China,Guangxi Key Laboratory of Precision Medicine for Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases, Nanning, China,*Correspondence: Lang Li,
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Possible implication of miR-142-3p in coronary microembolization induced myocardial injury via ATXN1L/HDAC3/NOL3 axis. J Mol Med (Berl) 2022; 100:763-780. [PMID: 35414011 DOI: 10.1007/s00109-022-02198-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 10/18/2022]
Abstract
This study aims to explore the mechanism underlying miR-142-3p regulating myocardial injury induced by coronary microembolization (CME) through ATXN1L. miR-142-3p overexpression or ATXN1L knockout adenovirus vectors were injected into rats before CME treatment. Cardiac functions were examined by echocardiography, and pathologies of myocardial tissues were assessed. Then, serum cTnI and IL-1β contents and concentrations of IL-1β and IL-18 in cell supernatant were measured. Immunofluorescence determined the localization of histone deacetylase 3 (HDAC3). The interaction between miR-142-3p and ATXN1L as well as the binding between HDAC3 and histone 3 (H3) was identified. The binding of ATXN1L and HDAC3 to NOL3 promoter was verified using ChIP. The levels of ATXN1L, NOL3, and miR-142-3p as well as apoptosis- and pyroptosis-related proteins and acetyl-histone 3 (ac-H3) were evaluated. CME treatment impaired the cardiac functions in rats and increased cTnI content. CME rats showed microinfarction foci in myocardial tissues. After CME treatment, miR-142-3p and NOL3 were modestly expressed while ATXN1L content was elevated, in addition to increases in apoptosis and pyroptosis. miR-142-3p overexpression or ATXN1L knockout alleviated CME-induced myocardial injury, cardiomyocyte apoptosis, and pyroptosis in myocardial tissues. miR-142-3p regulated ATXN1L expression in a targeted manner. In the cellular context, miR-142-3p overexpression attenuated apoptosis and pyroptosis in cardiomyocytes, which was partly counteracted by ATXN1L overexpression. ATXN1L functioned on cardiomyocytes by promoting deacetylation of H3 through HDAC3 and thus inhibited NOL3 expression. Inhibition of HDAC3 or overexpression of NOL3 ameliorated the promotive effects of ATXN1L on cardiomyocyte apoptosis and pyroptosis. In vivo and in vitro evidence in this study supported that miR-142-3p could attenuate CME-induced myocardial injury via ATXN1L/HDAC3/NOL3. HIGHLIGHTS: CME model witnessed aberrant expression of miR-142-3p, ATXN1L, and NOL3; miR-142-3p negatively regulated ATXN1L; miR-142-3p mediated CME-induced myocardial injury through ATXN1L; ATXN1L promoted deacetylation of H3 through HDAC3 and thus inhibited NOL3 expression; ATXN1L acted on cardiomyocyte apoptosis and pyroptosis through HDAC3/NOL3 axis.
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Reducing the Damage of Ox-LDL/LOX-1 Pathway to Vascular Endothelial Barrier Can Inhibit Atherosclerosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7541411. [PMID: 35391927 PMCID: PMC8983252 DOI: 10.1155/2022/7541411] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/11/2022] [Indexed: 11/17/2022]
Abstract
Aim The destruction of the vascular endothelial barrier mediated by Ox-LDL is the initial link to atherosclerosis. Here, we aimed to determine whether the immunological intervention with Ox-ApoB polypeptide fragment (Ox-ApoB-PF) can block the deposition of Ox-LDL in vascular endothelial cells through LOX-1 receptors, thereby protecting the barrier function and survival status of vascular endothelial cells and inhibiting the progression of atherosclerosis. Methods and Results In order to determine the harm of Ox-LDL to vascular endothelial cells and the protective effect of immune intervention with Ox-ApoB-PF, we conducted a series of corresponding experiments in vitro and in vivo. The in vitro results showed that Ox-LDL can activate endothelial cell apoptosis pathway; reduce the expression of endothelial junction proteins; affect the migration, deformation, and forming ability; and ultimately destroy the vascular endothelial barrier function. The increased permeability of endothelial cells led to a sharp increase in the phagocytosis of Ox-LDL by macrophages under the endothelial layer. Meanwhile, Ox-LDL stimulation induced a significant upregulation of LOX-1 in endothelial cells and increased the expression of endothelial cell chemokines and adhesion factors. Ox-ApoB-PF antibodies can significantly reduce the abovementioned harmful effects. The in vivo results showed that active immune intervention through Ox-ApoB-PF can protect the endothelial barrier function; reduce macrophage deposition and the inflammatory response in plaques; alleviate lipid deposition in the plaques, as well as apoptosis and necrosis; and increase the ability of liver macrophages to clear Ox-LDL. Eventually, the progression of plaque and the formation of necrotic cores in plaques can be inhibited. Conclusions An Ox-ApoB-PF antibody may protect the endothelial cell physiological function and survival status by blocking the combination of Ox-LDL/LOX-1 in vascular endothelial cells. Immune intervention with Ox-ApoB-PF inhibits the occurrence and development of atherosclerotic lesions by protecting the vascular endothelial barrier function.
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MiR-218 Promotes Adriamycin-Induced H9C2 Apoptosis by Inhibiting Stress-Associated Endoplasmic Reticulum Protein 1. DISEASE MARKERS 2022; 2022:6881103. [PMID: 35027982 PMCID: PMC8752265 DOI: 10.1155/2022/6881103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/11/2021] [Indexed: 11/17/2022]
Abstract
Objective Adriamycin is a clinically important chemotherapeutic drug, but its use is restricted due to its myocardial toxicity. Therefore, it is especially important to explore the toxicity mechanism of Adriamycin (ADR) to cardiomyocytes. Methods The myocardial toxicity model of ADR was constructed in vitro, and the effect of miR-218 inhibitor and sh-Serp1 on the activity of H9C2 cells induced by ADR was detected by MTT method. Also, flow cytometry, real-time polymerase chain reaction (RT-PCR), and TUNEL staining were used to detect the cell apoptosis. The activity of LDH was detected by colorimetry, and the interaction of miR-218 with Serp1 was detected by double-luciferase reporter gene assay. Western blotting technique was used to detect the expression level of caspase3 and p38 MAPK signal pathway. Results miR-218 inhibitor can obviously inhibit ADR-induced decrease in cell activity of H9C2 cells, inhibit cell apoptosis, and inhibit p38 MAPK signaling pathway activation. Conversely, sh-Serp1 aggravated the decrease in H9C2 cell activity and promoted cell apoptosis. Conclusion Upregulation of miR-218 expression will promote ADR-induced apoptosis of H9C2 cells. At the same time, we confirmed that the mechanism by which miR-218 promotes myocardial apoptosis was through the Serp1/p38 MAPK/caspase-3 signaling pathway.
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Lu Y, Yang M, Peng M, Xie L, Shen A, Lin S, Huang B, Chu J, Peng J. Kuanxiong aerosol inhibits apoptosis and attenuates isoproterenol-induced myocardial injury through the mitogen-activated protein kinase pathway. JOURNAL OF ETHNOPHARMACOLOGY 2021; 269:113757. [PMID: 33359915 DOI: 10.1016/j.jep.2020.113757] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/02/2020] [Accepted: 12/22/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kuanxiong aerosol (KXA) is a common clinical drug based on Fangxiang Wentong (FXWT) therapy in the treatment of angina pectoris. However, the pharmacological mechanism of KXA in the prevention and treatment of myocardial injury (MI) is not clear. AIM OF THE STUDY The purpose of this study was to explore the protective effect of KXA on isoproterenol (ISO)-induced MI in rats. MATERIALS AND METHODS The study included male Wistar Kyoto rats (age: 6 weeks). The rats were randomly divided into the following 5 groups (n = 6 per group): control group, ISO group, isosorbide mononitrate (ISMN) group (5 mg/kg), KXA-L group (0.1 mL/kg), and KXA-H group (0.3 mL/kg). The rats in the last three groups were given intragastric administration for 14 days, and rats in control group and ISO group were given the same amount of normal saline daily. ISO (120 mg/kg) was used to induce MI on the 13th and 14th days. We assessed electrocardiograms (ECGs), myocardial specific enzymes, histopathological changes, and apoptosis. RESULTS We found that KXA reduced the increase in the ST-segment amplitude (elevation or depression) and the levels of myocardial marker enzymes induced by ISO in MI rats, improved the pathological changes in myocardial tissue, and reduced cardiomyocyte apoptosis. At the same time, KXA significantly inhibited the up-regulation of caspase-3 and Bax expression and down-regulation of Bcl-2 expression induced by ISO. RNA sequencing showed that 90 up-regulated genes induced by ISO were down-regulated after KXA treatment, whereas 27 down-regulated genes induced by ISO were up-regulated after KXA treatment. In addition, KEGG pathway enrichment analysis showed that the mitogen-activated protein kinase (MAPK) signaling pathway may be an important target of KXA in the treatment of ISO-induced MI in rats. The results of RNA sequencing verified by Western blot analysis showed that KXA significantly inhibited the activation of the ISO-induced MAPK pathway. CONCLUSIONS KXA improves cardiac function in MI rats by inhibiting apoptosis mediated by the MAPK signaling pathway.
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Affiliation(s)
- Yan Lu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Meiling Yang
- The Third People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Meizhong Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Lingling Xie
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Aling Shen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Shan Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Bin Huang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Jianfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China.
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China.
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Zheng J, Long M, Qin Z, Wang F, Chen Z, Li L. Nicorandil inhibits cardiomyocyte apoptosis and improves cardiac function by suppressing the HtrA2/XIAP/PARP signaling after coronary microembolization in rats. Pharmacol Res Perspect 2021; 9:e00699. [PMID: 33448699 PMCID: PMC7809785 DOI: 10.1002/prp2.699] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/16/2020] [Accepted: 11/16/2020] [Indexed: 12/14/2022] Open
Abstract
Cardiomyocyte apoptosis is a key factor in the deterioration of cardiac function after coronary microembolization (CME). Nicorandil (NIC) affects myocardial injury, which may be related to the inhibition of apoptosis. However, the specific mechanism of cardioprotection has not been elucidated. Therefore, we analyzed the impact of NIC on cardiac function in rats subjected to CME and its effect on the high-temperature requirement peptidase 2/X-linked inhibitor of apoptosis protein/poly ADP-ribose polymerase (HtrA2/XIAP/PARP) pathway. Sprague Dawley rats were divided into four groups: Sham, CME, CME + NIC, and CME + UCF. Echocardiography was performed 9 hours after CME. Myocardial injury markers were evaluated in blood samples, and the heart tissue was collected for hematoxylin-eosin staining, hematoxylin basic fuchsin picric acid staining staining, TdT-mediated DUTP nick end labeling (TUNEL) staining, Western blot analysis of the HtrA2/XIAP/PARP pathway, and transmission electron microscopy. NIC ameliorated cardiac dysfunctioncaused by CME and reduced serum levels of CK-MB and LDH. In addition, NIC decreased myocardial microinfarct size and apoptotic index. NIC reduced the Bax/Bcl-2 ratio, levels of cleaved caspase 3/9, cytoplasmic HtrA2, and cleaved PARP, and increased the level of XIAP. The effects of NIC were similar to those of the HtrA2 inhibitor, UCF101. This study demonstrated that NIC reduces CME-induced myocardial injury, reduces mitochondrial damage, and improves myocardial function. The reduction in cardiomyocyte apoptosis by NIC may be mediated by the HtrA2/XIAP/PARP signaling pathway.
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Affiliation(s)
- Jing Zheng
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, Nanning, China
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, China
| | - Manyun Long
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, Nanning, China
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, China
| | - Zhenbai Qin
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, Nanning, China
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, China
| | - Fen Wang
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, Nanning, China
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, China
- Department of Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhiqing Chen
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, Nanning, China
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, China
| | - Lang Li
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory Base of Precision Medicine in Cardio-Cerebrovascular Diseases Control and Prevention, Nanning, China
- Guangxi Clinical Research Center for Cardio-Cerebrovascular Diseases, Nanning, China
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Xiong T, Zhang Z, Zheng R, Huang J, Guo L. N‑acetyl cysteine inhibits lipopolysaccharide‑induced apoptosis of human umbilical vein endothelial cells via the p38MAPK signaling pathway. Mol Med Rep 2019; 20:2945-2953. [PMID: 31524245 DOI: 10.3892/mmr.2019.10526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 07/05/2019] [Indexed: 11/06/2022] Open
Abstract
Lipopolysaccharide (LPS) can regulate the expression of apoptotic factors, including caspase‑3, Bcl‑2 and Bcl‑2‑associated X protein (Bax). Nitric oxide (NO) plays an important role in apoptosis. N‑acetyl cysteine (NAC) has been shown to exhibit antioxidant effects in vitro. However, the effects of NAC on LPS‑induced apoptosis of human umbilical vein endothelial cells (HUVECs) and the associated mechanisms are not well characterized. The present study explored the effect of NAC on LPS‑induced apoptosis of HUVECs and determined the participation of the p38 mitogen‑activated protein kinase (MAPK) pathway in the process of apoptosis. Cell viability was assessed using the Cell Counting Kit‑8 (CCK‑8) assay. The expression of caspase‑3, Bax, Bcl‑2, phosphorylated (p)‑p38MAPK/total (t‑)p38MAPK and p‑endothelial e nitric oxide synthase (eNOS)/t‑eNOS proteins were determined by western blotting. The expression levels of caspase‑3, Bax and Bcl‑2 mRNA were determined using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). The rate of apoptosis was determined using flow cytometry. An NO detection kit (nitric reductase method) was used to determine NO concentration. The results of CCK‑8 and flow cytometric analyses showed that pretreatment of HUVECs with NAC or p38MAPK inhibitor (SB203580) attenuated LPS‑induced decrease in cell viability and increase in cell apoptosis. RT‑qPCR and western blotting showed that LPS promoted caspase‑3 and Bax expression, but inhibited that of Bcl‑2 in HUVECs; however, these effects were attenuated by pretreatment with NAC or SB203580. LPS stimulation significantly enhanced the expression of p‑p38MAPK protein and reduced the expression of p‑eNOS protein; however, these effects were attenuated by pretreatment with NAC or SB203580. NAC pretreatment attenuated LPS‑induced inhibition of NO synthesis, which was consistent with the effects of SB203580. The results demonstrated that NAC pretreatment alleviated LPS‑induced apoptosis and inhibition of NO production in HUVECs. Furthermore, these effects were proposed to be mediated via the p38MAPK signaling pathway.
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Affiliation(s)
- Ting Xiong
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Zhenzhen Zhang
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Rui Zheng
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jialin Huang
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ling Guo
- Department of Prosthodontics, Hospital of Stomatology Affiliated to Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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11
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Cao X, Zhu N, Li L, Zhang Y, Chen Y, Zhang J, Li J, Gao C. Y-box binding protein 1 regulates ox-LDL mediated inflammatory responses and lipid uptake in macrophages. Free Radic Biol Med 2019; 141:10-20. [PMID: 31153975 DOI: 10.1016/j.freeradbiomed.2019.05.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/19/2019] [Accepted: 05/29/2019] [Indexed: 12/09/2022]
Abstract
AIMS Y-box protein 1 (YB1) is a key regulator of inflammatory mediators. However, the roles of YB1 in oxidized low-density lipoprotein (ox-LDL)-induced macrophage inflammation and lipid uptake remain less understood. Thus, we explored the roles of YB1 in ox-LDL-induced macrophage inflammation and lipid uptake and its underlying molecular mechanisms. METHODS An ox-LDL-induced atherosclerosis (AS) model was used in this study. Western blotting, RT-PCR, immunofluorescence, ELISA, dil-ox-LDL staining, a dual-luciferase reporter assay, RNA-binding protein immunoprecipitation (RIP) and in vivo experiments were used to detect each target. RESULTS ox-LDL downregulates YB1 expression in THP-1-derived macrophages and human monocyte-derived macrophages (hMDMs) via the NF-κB pathway. Downregulation of YB1 is facilitated by lipid uptake in macrophages, and CD36 is involved in this process. Furthermore, YB1 suppresses CD36 protein levels by directly binding to the coding sequence of the CD36 gene to promote CD36 mRNA decay but does not affect its mRNA transcription. Additionally, YB1 knockdown enhances the inflammatory response and lipid deposition via the NF-κB pathway in vivo. CONCLUSION ox-LDL decreases YB1 expression in macrophages, resulting in enhanced inflammatory responses by affecting NF-κB and facilitating lipid uptake by promoting scavenger receptor CD36 mRNA decay.
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Affiliation(s)
- Xueming Cao
- Department of Cardiology, Henan Provincial Key Lab for Control of Coronary Heart Disease, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou University People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450003, China
| | - Na Zhu
- Department of Health Management, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan, 450003, China
| | - Li Li
- Department of Scientific Research and Discipline Construction, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan, 450003, China
| | - Yuwei Zhang
- Medical Genetic Institute of Henan Province, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450003, China
| | - Yan Chen
- Department of Cardiology, Henan Provincial Key Lab for Control of Coronary Heart Disease, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou University People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450003, China
| | - Jing Zhang
- Department of Cardiology, Henan Provincial Key Lab for Control of Coronary Heart Disease, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou University People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450003, China
| | - Jiang Li
- Department of Cardiology, Henan Provincial Key Lab for Control of Coronary Heart Disease, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou University People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450003, China
| | - Chuanyu Gao
- Department of Cardiology, Henan Provincial Key Lab for Control of Coronary Heart Disease, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou University People's Hospital, School of Clinical Medicine, Henan University, Zhengzhou, 450003, China.
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12
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MicroRNA-486-5p targeting PTEN Protects Against Coronary Microembolization-Induced Cardiomyocyte Apoptosis in Rats by activating the PI3K/AKT pathway. Eur J Pharmacol 2019; 855:244-251. [DOI: 10.1016/j.ejphar.2019.03.045] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/22/2019] [Accepted: 03/25/2019] [Indexed: 02/07/2023]
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13
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Nobiletin protects against myocardial injury and myocardial apoptosis following coronary microembolization via activating PI3K/Akt pathway in rats. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1121-1130. [DOI: 10.1007/s00210-019-01661-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 04/28/2019] [Indexed: 12/11/2022]
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14
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Ligustrazine Attenuates Myocardial Injury Induced by Coronary Microembolization in Rats by Activating the PI3K/Akt Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6791457. [PMID: 31191802 PMCID: PMC6525935 DOI: 10.1155/2019/6791457] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/26/2019] [Accepted: 04/09/2019] [Indexed: 01/04/2023]
Abstract
Background/Aims Coronary microembolization- (CME-) induced myocardial injury and progressive cardiac dysfunction are mainly caused due to CME-induced myocardial local inflammatory response and myocardial apoptosis. Ligustrazine plays an important protective role in multiple cardiovascular diseases, but its role and the protection mechanism in CME is unclear. This study hypothesized that ligustrazine attenuates CME-induced myocardial injury in rats. This study also explored the mechanism underlying this attenuation. Methods Forty SD rats were randomly divided into CME group, ligustrazine group, ligustrazine+LY294002 (ligustrazine+LY) group, and sham group (ten rats in each). In each group, the cardiac function, apoptotic index, serum c-troponin I (cTnI) level, inflammation [interleukin-1β (IL-1β) and tumor necrosis factor-alpha (TNF-α)], and oxidative stress [nitric oxide (NO), superoxide dismutase (SOD), and malondialdehyde (MDA)] were determined. Western blotting was used to detect the proteins which are present in the PI3K/Akt pathway. Results Ligustrazine improved cardiac dysfunction induced by CME, increased serum NO and SOD activities, and decreased the serum level in IL-1β, MDA, cTnI, and TNF-α. Moreover, ligustrazine inhibited myocardial apoptosis, which is perhaps caused by the upregulated Bcl-2, the downregulated cleaved caspase-3 and Bax, and the increased protein level in endothelial nitric oxide synthase and phosphorylated Akt. These effects, however, were reduced if ligustrazine was coadministered with LY294002. Conclusions Ligustrazine attenuates CME-induced myocardial injury. The effects associated with this attenuation may be achieved by activating the myocardium PI3K/Akt signaling pathway.
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15
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Microglial LOX-1/MAPKs/NF-κB positive loop promotes the vicious cycle of neuroinflammation and neural injury. Int Immunopharmacol 2019; 70:187-200. [DOI: 10.1016/j.intimp.2019.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 02/03/2019] [Accepted: 02/06/2019] [Indexed: 12/23/2022]
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16
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Hein TW, Xu X, Ren Y, Xu W, Tsai SH, Thengchaisri N, Kuo L. Requisite roles of LOX-1, JNK, and arginase in diabetes-induced endothelial vasodilator dysfunction of porcine coronary arterioles. J Mol Cell Cardiol 2019; 131:82-90. [PMID: 31015037 DOI: 10.1016/j.yjmcc.2019.04.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 03/12/2019] [Accepted: 04/16/2019] [Indexed: 01/05/2023]
Abstract
Diabetes is associated with cardiac inflammation and impaired endothelium-dependent coronary vasodilation, but molecular mechanisms involved in this dysfunction remain unclear. We examined contributions of inflammatory molecules lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), stress-activated kinases (c-Jun N-terminal kinase [JNK] and p38), arginase, and reactive oxygen species to coronary arteriolar dysfunction in a porcine model of type 1 diabetes. Coronary arterioles were isolated from streptozocin-induced diabetic pigs and control pigs for vasoreactivity and molecular/biochemical studies. Endothelium-dependent nitric oxide (NO)-mediated vasodilation to serotonin was diminished after 2 weeks of diabetes, without altering endothelium-independent vasodilation to sodium nitroprusside. Superoxide scavenger TEMPOL, NO precursor L-arginine, arginase inhibitor nor-NOHA, anti-LOX-1 antibody or JNK inhibitors SP600125 and BI-78D3 improved dilation of diabetic vessels to serotonin. However, hydrogen peroxide scavenger catalase, anti-IgG antibody or p38 kinase inhibitor SB203580 had no effect. Combined inhibition of arginase and superoxide levels did not further improve vasodilation. Arginase-I mRNA expression, LOX-1 and JNK protein expression, and superoxide levels were elevated in diabetic arterioles. In conclusion, sequential activation of LOX-1, JNK, and L-arginine consuming enzyme arginase-I in diabetes elicits superoxide-dependent oxidative stress and impairs endothelial NO-mediated dilation in coronary arterioles. Therapeutic targeting of these adverse vascular molecules may improve coronary arteriolar function during diabetes.
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Affiliation(s)
- Travis W Hein
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, TX, United States.
| | - Xin Xu
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, TX, United States
| | - Yi Ren
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, TX, United States
| | - Wenjuan Xu
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, TX, United States
| | - Shu-Huai Tsai
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, TX, United States
| | - Naris Thengchaisri
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, TX, United States
| | - Lih Kuo
- Department of Medical Physiology, College of Medicine, Texas A&M University Health Science Center, Temple, TX, United States
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17
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The mechanism of miR-142-3p in coronary microembolization-induced myocardiac injury via regulating target gene IRAK-1. Cell Death Dis 2019; 10:61. [PMID: 30683933 PMCID: PMC6347606 DOI: 10.1038/s41419-019-1341-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 12/20/2018] [Accepted: 01/07/2019] [Indexed: 12/14/2022]
Abstract
Coronary microembolization (CME) is a common complication seen during primary percutaneous coronary intervention (pPCI). CME-induced myocardiac inflammation is the primary cause of myocardiac injury. Dysregulated miR-142-3p has been implicated in multiple cardiovascular diseases and is significantly downregulated in CME-induced myocardial injury. However, the role of miR-142-3p in CME-induced myocardial injury is unclear. This study herein built a porcine CME model by infusing microembolization spheres into the left anterior descending branch via a microcatheter, and detected the downregulation of miR-142-3p in the myocardial tissues of CME pigs. Echocardiography, hematoxylin basic fuchsin picric acid (HBFP) staining, and western blotting of NF-κB p65, TNF-α, IL-1β, and IL-6 showed that the pharmacological overexpression of miR-142-3p using agomiR has improved cardiac function and attenuated CME-induced myocardiac inflammatory response, while its inhibition using antagomiR demonstrated inverse effects. Moreover, in vitro experiments demonstrated IRAK-1 as a direct target gene of miR-142-3p. Luciferase reporter assays, quantitative real-time polymerase chain reaction and western blotting demonstrated its effects in controlling the inflammation of cardiomyocytes. It is noteworthy that miR-142-3p was found to be decreased in the plasma of STEMI patients undergoing pPCI with no-reflow, indicating a potential clinical relevance of miR-142-3p. The receiver–operator characteristic curve indicated that plasma miR-142-3p might be an independent predictor of no-reflow during pPCI in patients with STEMI. Therefore, overexpression of miR-142-3p acts as a novel therapy for CME-induced myocardial injury.
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18
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Kong B, Qin Z, Ye Z, Yang X, Li L, Su Q. microRNA-26a-5p affects myocardial injury induced by coronary microembolization by modulating HMGA1. J Cell Biochem 2019; 120:10756-10766. [PMID: 30652345 DOI: 10.1002/jcb.28367] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 11/29/2018] [Indexed: 01/10/2023]
Abstract
Coronary microembolization (CME) occurs when atherosclerotic plaque debris is detached during the treatment of acute coronary syndrome with Percutaneous Coronary Intervention (PCI). The complications of distal microvascular embolism, including local myocardial inflammation, are the main causes of myocardial damage and are a strong predictor of poor long-term prognosis and major cardiac adverse events. microRNAs (miRNAs) are involved in the pathophysiological processes of cardiovascular inflammatory diseases. Dysregulation of microRNA (miR)-26a-5p, in particular, is associated with a variety of cardiovascular diseases. However, the role of miR-26a-5p in CME-induced myocardial injury is unclear. In this study, we developed an animal model of CME by injecting microembolic balls into the left ventricle of rats and found that miR-26a-5p expression decreased in myocardial tissue in response. Using a miR-26a-5p mimic, echocardiography, hematoxylin-eosin staining, and Western blot analysis we found that the diminished cardiac function and myocardial inflammation induced by CME is alleviated by miR-26a-5p overexpression. Furthermore, our results show that inhibitors of miR-26a-5p have the opposite effect. In addition, in vitro experiments using real-time PCR, Western blot analysis, and a dual luciferase reporter gene show that HMGA1 is a target gene of miR-26a-5p. Thus, overexpression of miR-26a-5p could be a novel therapy to improve CME-induced myocardial damage.
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Affiliation(s)
- Binghui Kong
- Department of Cardiology, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Zhenbai Qin
- Department of Cardiology, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Ziliang Ye
- Department of Cardiology, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Xuefei Yang
- Department of Cardiology, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Lang Li
- Department of Cardiology, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Qiang Su
- Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
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19
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Liu ZF, Ji JJ, Zheng D, Su L, Peng T. Calpain-2 protects against heat stress-induced cardiomyocyte apoptosis and heart dysfunction by blocking p38 mitogen-activated protein kinase activation. J Cell Physiol 2018; 234:10761-10770. [PMID: 30417356 DOI: 10.1002/jcp.27750] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 10/22/2018] [Indexed: 12/25/2022]
Abstract
Cardiovascular dysfunction is a common complication among heatstroke patients, but its underlying mechanism is unclear. This study was designed to investigate the role of calpain-2 and its downstream signal pathway in heat stress-induced cardiomyocyte apoptosis and heart dysfunction. In cultured primary mouse neonatal cardiomyocytes (MNCs), heat stress (43°C for 2 hr) induced a heat-shock response, as indicated by upregulated heat-shock protein 27 (HSP27) expression and cellular apoptosis, as indicated by increased caspase-3 activity, DNA fragmentation and decreased cell viability. Meanwhile, heat stress decreased calpain activity, which was accompanied by downregulated calpain-2 expression and increased phosphorylation of p38, extraceIIuIar signaI-reguIated protein kinase (ERK1/2) and c-Jun N-terminaI kinase (JNK). Calpain-2 overexpression abrogated heat stress-induced apoptosis and phosphorylation of p38 and JNK, but not of ERK1/2. Blocking only p38 prevented heat stress-induced apoptosis in MNCs. In cardiac-specific calpain-2 overexpressing transgenic mice, p38 phosphorylation and cardiomyocyte apoptosis were decreased in the heart tissue of heatstroke mice, as revealed by western blot and terminal deoxynucleotidyl transferase dUTP nick end labelling assays, respectively. M-mode echocardiography also demonstrated that calpain-2 overexpression significantly improved heatstroke-induced decreases in ventricular end-diastolic volume and cardiac output. In conclusion, our study suggests that heat stress reduces calpain-2 expression, which then activates p38, leading to cardiomyocyte apoptosis and heart dysfunction.
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Affiliation(s)
- Zhi-Feng Liu
- Department of Critical Care Medicine, General Hospital of Guangzhou Military Command, Guangzhou, China.,Department of Medicine, Critical Illness Research Center, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada.,Department of Pathology, Critical Illness Research Center, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Jing-Jing Ji
- Department of Critical Care Medicine, General Hospital of Guangzhou Military Command, Guangzhou, China.,Departement of Pathophysiology, Southern Medical University, Guangzhou, China
| | - Dong Zheng
- Department of Medicine, Critical Illness Research Center, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada.,Department of Pathology, Critical Illness Research Center, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada
| | - Lei Su
- Department of Critical Care Medicine, General Hospital of Guangzhou Military Command, Guangzhou, China.,Key Laboratory of Hot Zone Trauma Care and Tissue Repair of PLA, General Hospital of Guangzhou Military Command, Guangzhou, China
| | - Tianqing Peng
- Department of Medicine, Critical Illness Research Center, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada.,Department of Pathology, Critical Illness Research Center, Lawson Health Research Institute, University of Western Ontario, London, Ontario, Canada
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20
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Liu Y, Liu Y, Huang X, Zhang J, Yang L. Protective effects and mechanism of curcumin on myocardial injury induced by coronary microembolization. J Cell Biochem 2018; 120:5695-5703. [PMID: 30324684 DOI: 10.1002/jcb.27854] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 09/19/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Coronary microembolization (CME) is a common complication during the percutaneous coronary intervention (PCI). CME-induced local myocardial inflammation and myocardial apoptosis are the primary causes of progressive cardiac dysfunction. Curcumin exerts a protective role in various cardiovascular diseases; however, its effects in CME are yet to be clarified. Therefore, the current study investigated the effects of curcumin on myocardial inflammatory responses, myocardial apoptosis, and cardiac dysfunctions induced by CME in rats. METHODS A total of 40 Sprague-Dawley rats were randomly divided into the following groups: Sham operation (sham group), CME group, curcumin, and control with 10 rats in each group. The ascending aortas were clamped, and the CME-model group was established by injecting microspheres into the apex of the left ventricle. An equivalent amount of normal saline was injected to establish the sham group. The cardiac functions, serum c-troponin I level, and apoptotic index was examined. Also, the levels of Toll-like receptor 4 (TLR4), myeloid differentiation primary response 88 (MYD88), nuclear factor κB (NF-κB) p65, BCL2-associated X protein (Bax), B-cell lymphoma 2 (Bcl-2), cleaved caspase-3, tumor necrosis factor α (TNF-α), and interleukin-1β (IL-1β) were detected. RESULTS Myocardial dysfunction enhanced serum c-troponin I, and apoptotic index were induced following CME. Moreover, CME elevated the expression of TLR4, MyD88, NF-κB p65, cleaved caspase-3, TNF-α, and IL-1β, while the Bcl-2/Bax ratio decreased. Curcumin reversed these effects by CME, while the gastric lavage control did not exert any effect. CONCLUSION Curcumin was responsible for the anti-CME-induced myocardial injury. The effector mechanism might be related to the reduction of cardiomyocyte apoptosis and inhibition of myocardial inflammatory responses mediated by TLR4/MyD88/NF-κB signaling pathway.
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Affiliation(s)
- Yang Liu
- Department of Cardiology, The Second People's Hospital of Nanning City, The Third Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Yuanhang Liu
- Nursing College, Guangxi Medical University, Nanning, China
| | - Xuecheng Huang
- Department of Cardiology, The Second People's Hospital of Nanning City, The Third Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Jingchang Zhang
- Department of Cardiology, The Second People's Hospital of Nanning City, The Third Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Lihui Yang
- Nursing College, Guangxi Medical University, Nanning, China
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21
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Chen Q, Wang W, Huang Z, Huang D, Wang F, Li J, Liu X, Sun Z, Zeng X. Role of high‐mobility group B1 in myocardial injury induced by coronary microembolization in rats. J Cell Biochem 2018; 120:4238-4247. [PMID: 30269353 DOI: 10.1002/jcb.27709] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 08/29/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Quan‐Fang Chen
- Institute of Respiratory Disease, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Wei Wang
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Zhou Huang
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Dong‐Ling Huang
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Fan Wang
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Jun Li
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Xue‐Feng Liu
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Zhong‐Yi Sun
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
| | - Xiang‐Tao Zeng
- Department of Emergency, The First Affiliated Hospital, Guangxi Medical University Nanning China
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22
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Feng A, Ling C, Xin-Duo L, Bing W, San-Wu W, Yu Z, Yu-Lan H, You-En Z. Hydrogen Sulfide Protects Human Cardiac Fibroblasts Against H 2O 2-induced Injury Through Regulating Autophagy-Related Proteins. Cell Transplant 2018; 27:1222-1234. [PMID: 30022684 PMCID: PMC6434465 DOI: 10.1177/0963689718779361] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Autophagy, an intracellular bulk degradation process of proteins and organelles, can be induced by myocardial ischemia in the heart. However, the causative role of autophagy in the survival of human cardiac fibroblasts and the underlying mechanisms are incompletely understood. Oxidative stress can induce autophagy in cultured cells upon hydrogen peroxide (H2O2) exposure. Because hydrogen sulfide (H2S) regulates reactive oxygen species (ROS) and apoptosis, we hypothesize that H2S may have a cardioprotective function. To examine our hypothesis, we investigated the regulation of autophagy by the H2S donor sodium hydrosulfide (NaHS), using a cell model of human cardiac fibroblasts from adult ventricles (HCF-av) that suffered from endoplasmic reticulum (ER) stress by H2O2. In the present study, we found that the apoptosis and autophagy were induced along with ER stress by H2O2 in the primary cultured HCF-av cells. In contrast, H2S suppressed HCF-av cell apoptosis and autophagic flux, in part directly by inhibiting ROS production and preserving mitochondrial functions.
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Affiliation(s)
- Ao Feng
- 1 Department of Medical Imaging Center, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Chen Ling
- 2 Department of Cardiology, Jinzhou Medical University, Shiyan, China
| | - Lin Xin-Duo
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Wu Bing
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Wu San-Wu
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Zhan Yu
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Huang Yu-Lan
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Zhang You-En
- 3 Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,4 Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
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23
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Feng W, Zhang K, Liu Y, Chen J, Cai Q, He W, Zhang Y, Wang MH, Wang J, Huang H. Advanced oxidation protein products aggravate cardiac remodeling via cardiomyocyte apoptosis in chronic kidney disease. Am J Physiol Heart Circ Physiol 2018; 314:H475-H483. [PMID: 29101185 DOI: 10.1152/ajpheart.00628.2016] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Weijing Feng
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Kun Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Yu Liu
- Department of Cardiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Jie Chen
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
- Department of Radiation Oncology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qingqing Cai
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, Sun Yat-sen University, Guangzhou, China
| | - Wanbing He
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Yinyin Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Mong-Heng Wang
- Department of Physiology, Augusta University, Augusta, Georgia
| | - Jingfeng Wang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
| | - Hui Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Department of Cardiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
- Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Guangzhou, China
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Yu LM, Di WC, Dong X, Li Z, Zhang Y, Xue XD, Xu YL, Zhang J, Xiao X, Han JS, Liu Y, Yang Y, Wang HS. Melatonin protects diabetic heart against ischemia-reperfusion injury, role of membrane receptor-dependent cGMP-PKG activation. Biochim Biophys Acta Mol Basis Dis 2017; 1864:563-578. [PMID: 29196237 DOI: 10.1016/j.bbadis.2017.11.023] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/18/2017] [Accepted: 11/27/2017] [Indexed: 12/17/2022]
Abstract
It has been demonstrated that the anti-oxidative and cardioprotective effects of melatonin are, at least in part, mediated by its membrane receptors. However, the direct downstream signaling remains unknown. We previously found that melatonin ameliorated myocardial ischemia-reperfusion (MI/R) injury in diabetic animals, although the underlying mechanisms are also incompletely understood. This study was designed to determine the role of melatonin membrane receptors in melatonin's cardioprotective actions against diabetic MI/R injury with a focus on cGMP and its downstream effector PKG. Streptozotocin-induced diabetic Sprague-Dawley rats and high-glucose medium-incubated H9c2 cardiomyoblasts were utilized to determine the effects of melatonin against MI/R injury. Melatonin treatment preserved cardiac function and reduced oxidative damage and apoptosis. Additionally, melatonin increased intracellular cGMP level, PKGIα expression, p-VASP/VASP ratio and further modulated myocardial Nrf-2-HO-1 and MAPK signaling. However, these effects were blunted by KT5823 (a selective inhibitor of PKG) or PKGIα siRNA except that intracellular cGMP level did not changed significantly. Additionally, our in vitro study showed that luzindole (a nonselective melatonin membrane receptor antagonist) or 4P-PDOT (a selective MT2 receptor antagonist) not only blocked the cytoprotective effect of melatonin, but also attenuated the stimulatory effect of melatonin on cGMP-PKGIα signaling and its modulatory effect on Nrf-2-HO-1 and MAPK signaling. This study showed that melatonin ameliorated diabetic MI/R injury by modulating Nrf-2-HO-1 and MAPK signaling, thus reducing myocardial apoptosis and oxidative stress and preserving cardiac function. Importantly, melatonin membrane receptors (especially MT2 receptor)-dependent cGMP-PKGIα signaling played a critical role in this process.
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Affiliation(s)
- Li-Ming Yu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Wen-Cheng Di
- Department of Cardiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, Jiangsu 210008, China
| | - Xue Dong
- Department of Pharmacy, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; Department of Neurosurgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Zhi Li
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Yong Zhang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Xiao-Dong Xue
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Yin-Li Xu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Jian Zhang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Xiong Xiao
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China; Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi'an, Shaanxi 710032, China
| | - Jin-Song Han
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Yu Liu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China
| | - Yang Yang
- Faculty of Life Science, Northwest University, 229 Taibai North Road, Xi'an, Shaanxi 710069, China; Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, Shaanxi 710032, China.
| | - Hui-Shan Wang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, Liaoning 110016, China.
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Liang J, Li L, Sun Y, He W, Wang X, Su Q. The protective effect of activating Nrf2 / HO-1 signaling pathway on cardiomyocyte apoptosis after coronary microembolization in rats. BMC Cardiovasc Disord 2017; 17:272. [PMID: 29065851 PMCID: PMC5655953 DOI: 10.1186/s12872-017-0704-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 10/13/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Myocardial apoptosis is closely related to myocardial injury caused by coronary microembolization (CME).Nuclear factor erythroid 2-like (Nrf2) has been taken into account as an inhibitor of apoptosis in various tissues. Thus, this research aims to investigate which part Nrf2/HO-1 signaling pathway plays in myocardial apoptosis process following the effect of CME on rats. METHODS Separate 40 rats then form them into a group of shame, a group of CME, a group of CME plus AAV-Nrf2(AAV-Nrf2 (CME) group) and a group of CME plus AAV-control (AAV-control (CME) group) stochastically and averagely. Rat CME was established by injecting into the left ventricular chamber, with or without pretreatment of adeno-associated virus Nrf2 (AAV-Nrf2). Echocardiological measurements, using Terminal-deoxynucleoitidyl Transferase Mediated Nick End Labeling (TUNEL) to stain, conducting Quantitative PCR in real time (RT-PCR) as well as Western blotting to evaluate the impacts of them functionally, morphologically and molecularly in CME. RESULTS Nrf2 decreased in cardiomyocytes after CME. Upregulation of Nrf2 inside an organism through AAV connect to improving the function of heart as well as attenuating myocardial apoptosis, following the restrain of proapoptotic mRNAs and proteins like caspase-3, caspase-9 and bax expressing as well as the increase of antiapoptotic mRNA and proteins like HO-1 and bcl-2 expressing. CONCLUSION Activation of Nrf2/HO-1 pathway can improve CME-induced cardiac dysfunction effectively and also reduce the myocardial apoptosis.
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Affiliation(s)
- Jiabao Liang
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021 China
| | - Lang Li
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021 China
| | - Yuhan Sun
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021 China
| | - Wenkai He
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021 China
| | - Xiantao Wang
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021 China
| | - Qiang Su
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021 China
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Che C, Liu J, Ma L, Xu H, Bai N, Zhang Q. LOX-1 is involved in IL-1β production and extracellular matrix breakdown in dental peri-implantitis. Int Immunopharmacol 2017; 52:127-135. [PMID: 28898769 DOI: 10.1016/j.intimp.2017.09.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/04/2017] [Accepted: 09/06/2017] [Indexed: 12/13/2022]
Abstract
PURPOSE To explore whether lectin-type oxidized LDL receptor 1 (LOX-1), interleukin 1 beta (IL-1β), matrix metalloproteinase 2 (MMP2) and matrix metalloproteinase 9 (MMP9) are involved in the nosogenesis of human dental peri-implantitis and determine the role of LOX-1 in IL-1β, MMP2 and MMP9 production in response to Porphyromonas gingivalis. METHODS Peri-implant crevicular fluid (PICF) was collected from ten patients with healthy implants and ten patients with peri-implantitis. The LOX-1 protein in PICF was detected by Western-blot, and the expression of LOX-1 in superficial gingiva of peri-implantitis patients was detected by immunofluorescence staining. The IL-1β, MMP2 and MMP9 proteins in PICF were detected by enzyme-linked immunosorbent assay (ELISA). THP-1 macrophages were pretreated with neutralizing antibody (LOX-1) and inhibitors (LOX-1 and c-Jun N-terminal kinase, JNK) to evaluate the role of LOX-1 and JNK in IL-1β production, as well as the role of LOX-1 in MMP2 and MMP9 production in response to P. gingivalis by quantitative polymerase chain reaction (RT-PCR) and Western-blot. RESULTS LOX-1, IL-1β, MMP2 and MMP9 increased in PICF of peri-implantitis patients and in THP-1 macrophages on P. gingivalis stimulation. IL-1β, MMP2 and MMP9 production in response to P. gingivalis in THP-1 macrophages was dependent on LOX-1. JNK was responsible for LOX-1 induced IL-1β production as a result of P. gingivalis infection. CONCLUSION LOX-1 is involved in IL-1β production and extracellular matrix breakdown is a novel inflammatory pathway trigger and potential drug target in human dental peri-implantitis.
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Affiliation(s)
- Chengye Che
- Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Jie Liu
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Lei Ma
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Huirong Xu
- Department of Pathology, ZiBo Central Hospital, ZiBo, Shandong Province, China
| | - Na Bai
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Qian Zhang
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
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Effects of nicorandil on PI3K/Akt signaling pathway and its anti-apoptotic mechanisms in coronary microembolization in rats. Oncotarget 2017; 8:99347-99358. [PMID: 29245906 PMCID: PMC5725097 DOI: 10.18632/oncotarget.19966] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 07/25/2017] [Indexed: 12/13/2022] Open
Abstract
Coronary microembolization (CME) is a common complication of percutaneous coronary intervention (PCI) for acute coronary syndrome. It leads to myocardial apoptosis and cardiac dysfunction. Nicorandil pretreatment can prevent PCI-related myocardial injury and reduce the incidence of no- or slow-reflow phenomena. This cardioprotective effect is probably attributable to the suppression of CME-induced cardiomyocyte apoptosis, but the specific mechanisms have not been clarified. We aimed to investigate the protective effects of nicorandil pretreatment on CME-induced myocardial injury and clarify the underlying mechanisms. In vivo studies, we used echocardiography, cardiac-enzymes measurement, hematoxylin–basic fuchsin–picric acid staining, TUNEL assay, and western blot, and found that CME significantly increased apoptotic cardiomyocytes in the infarct and peri-infarct areas in rats. The PI3K/Akt signaling pathway was involved in cardiomyocyte apoptosis. Nicorandil pretreatment given 7 days before CME effectively reduced cardiomyocyte apoptosis and myocardial injuries in rats, mainly through the activation of PI3K/Akt signaling. In vitro studies further showed that nicorandil reduced hypoxia-induced cardiomyocyte apoptosis and improved cardiomyocyte-survival rate. The PI3K-specific inhibitor LY294002 reduced these cardioprotective effects, indicating that they were attributable to the activation of the PI3K/Akt signaling pathway. In conclusion, nicorandil has significant cardioprotective effects in CME mainly through the activation of the PI3K/Akt signaling pathway and reduction of CME-induced cardiomyocyte apoptosis. Our findings may provide important support for the pre-PCI use of nicorandil to reduce post-PCI myocardial injuries.
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Antiretroviral Treatment with Efavirenz Disrupts the Blood-Brain Barrier Integrity and Increases Stroke Severity. Sci Rep 2016; 6:39738. [PMID: 28008980 PMCID: PMC5180178 DOI: 10.1038/srep39738] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 11/28/2016] [Indexed: 12/13/2022] Open
Abstract
The introduction of antiretroviral drugs (ARVd) changed the prognosis of HIV infection from a deadly disease to a chronic disease. However, even with undetectable viral loads, patients still develop a wide range of pathologies, including cerebrovascular complications and stroke. It is hypothesized that toxic side effects of ARVd may contribute to these effects. To address this notion, we evaluated the impact of several non-nucleoside reverse transcriptase inhibitors (NNRTI; Efavirenz, Etravirine, Rilpivirine and Nevirapine) on the integrity of the blood-brain barrier, and their impact on severity of stroke. Among studied drugs, Efavirenz, but not other NNRTIs, altered claudin-5 expression, increased endothelial permeability, and disrupted the blood-brain barrier integrity. Importantly, Efavirenz exposure increased the severity of stroke in a model of middle cerebral artery occlusion in mice. Taken together, these results indicate that selected ARVd can exacerbate HIV-associated cerebrovascular pathology. Therefore, careful consideration should be taken when choosing an anti-retroviral therapy regimen.
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Wang JY, Chen H, Su X, Zhou Y, Li L. Atorvastatin Pretreatment Inhibits Myocardial Inflammation and Apoptosis in Swine After Coronary Microembolization. J Cardiovasc Pharmacol Ther 2016; 22:189-195. [PMID: 27587240 DOI: 10.1177/1074248416662348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIM In addition to its cholesterol-lowering effect, atorvastatin (ATV) has been thought to have multiple cardiovascular benefits, including anti-inflammatory and anti-apoptotic properties. The present study was undertaken to determine whether ATV pretreatment could attenuate myocardial apoptosis and inflammation and improve cardiac function in a swine model of coronary microembolization (CME). METHODS Twenty-four swine were randomly and equally divided into a sham-operated (control) group, CME group, and CME plus ATV group. Swine CME was induced by intracoronary injection of inert plastic microspheres (diameter 42 μm) into the left anterior descending coronary, with or without pretreatment of ATV. Echocardiographic measurements, a pathological examination, terminal deoxynucleotidyl transferase-mediated nick end labeling staining, and Western blotting were performed to assess the functional, morphological, and molecular effects in CME. RESULTS The expression levels of caspase 3 and tumor necrosis factor-α (TNF-α) were aberrantly upregulated in cardiomyocytes following CME. Downregulation of caspase 3 and TNF-α with ATV pretreatment was associated with improved cardiac function and attenuated serum cardiac troponin I (cTnI) and high-sensitivity C-reactive protein. In addition, through a Pearson correlation analysis, the left ventricular ejection fraction negatively correlated with caspase 3, TNF-α, and cTnI. CONCLUSION This study demonstrated that ATV pretreatment could significantly inhibit CME-induced myocardial apoptosis and inflammation and improve cardiac function. The data generated from this study provide a rationale for the development of myocardial apoptosis and inflammation-based therapeutic strategies for CME-induced myocardial injury.
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Affiliation(s)
- Jiang-You Wang
- 1 Department of Cardiology, Wuhan Asia Heart Hospital, Wuhan, People's Republic of China
| | - Han Chen
- 2 Department of Cardiac Surgery, Wuhan Asia Heart Hospital, Wuhan, People's Republic of China
| | - Xi Su
- 1 Department of Cardiology, Wuhan Asia Heart Hospital, Wuhan, People's Republic of China
| | - You Zhou
- 3 Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Lang Li
- 3 Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
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