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Zhang R, Xie K, Lian Y, Hong S, Zhu Y. Dexmedetomidine ameliorates x-ray-induced myocardial injury via alleviating cardiomyocyte apoptosis and autophagy. BMC Cardiovasc Disord 2024; 24:323. [PMID: 38918713 PMCID: PMC11201331 DOI: 10.1186/s12872-024-03988-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 06/19/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Radiotherapy is a primary local treatment for tumors, yet it may lead to complications such as radiation-induced heart disease (RIHD). Currently, there is no standardized approach for preventing RIHD. Dexmedetomidine (Dex) is reported to have cardio-protection effects, while its role in radiation-induced myocardial injury is unknown. In the current study, we aimed to evaluate the radioprotective effect of dexmedetomidine in X-ray radiation-treated mice. METHODS 18 male mice were randomized into 3 groups: control, 16 Gy, and 16 Gy + Dex. The 16 Gy group received a single dose of 16 Gy X-ray radiation. The 16 Gy + Dex group was pretreated with dexmedetomidine (30 µg/kg, intraperitoneal injection) 30 min before X-ray radiation. The control group was treated with saline and did not receive X-ray radiation. Myocardial tissues were collected 16 weeks after X-ray radiation. Hematoxylin-eosin staining was performed for histopathological examination. Terminal deoxynucleotidyl transferase dUTP nick-end labeling staining was performed to assess the state of apoptotic cells. Immunohistochemistry staining was performed to examine the expression of CD34 molecule and von Willebrand factor. Besides, western blot assay was employed for the detection of apoptosis-related proteins (BCL2 apoptosis regulator and BCL2-associated X) as well as autophagy-related proteins (microtubule-associated protein 1 light chain 3, beclin 1, and sequestosome 1). RESULTS The findings demonstrated that 16 Gy X-ray radiation resulted in significant changes in myocardial tissues, increased myocardial apoptosis, and activated autophagy. Pretreatment with dexmedetomidine significantly protects mice against 16 Gy X-ray radiation-induced myocardial injury by inhibiting apoptosis and autophagy. CONCLUSION In summary, our study confirmed the radioprotective effect of dexmedetomidine in mitigating cardiomyocyte apoptosis and autophagy induced by 16 Gy X-ray radiation.
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MESH Headings
- Animals
- Autophagy/drug effects
- Autophagy/radiation effects
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/pathology
- Myocytes, Cardiac/radiation effects
- Myocytes, Cardiac/metabolism
- Apoptosis/drug effects
- Male
- Dexmedetomidine/pharmacology
- Radiation Injuries, Experimental/prevention & control
- Radiation Injuries, Experimental/pathology
- Radiation Injuries, Experimental/metabolism
- Radiation Injuries, Experimental/drug therapy
- Radiation-Protective Agents/pharmacology
- Disease Models, Animal
- Signal Transduction/drug effects
- Mice
- Autophagy-Related Proteins/metabolism
- Mice, Inbred C57BL
- Apoptosis Regulatory Proteins/metabolism
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Affiliation(s)
- Runze Zhang
- Department of Anesthesiology, Zhejiang Cancer Hospital, No. 1 East Banshan Road, Gongshu District, Hangzhou, Zhejiang, 310022, China
| | - Kangjie Xie
- Department of Anesthesiology, Zhejiang Cancer Hospital, No. 1 East Banshan Road, Gongshu District, Hangzhou, Zhejiang, 310022, China
| | - Yanhong Lian
- Department of Anesthesiology, Zhejiang Cancer Hospital, No. 1 East Banshan Road, Gongshu District, Hangzhou, Zhejiang, 310022, China
| | - Shufang Hong
- Department of Anesthesiology, Zhejiang Cancer Hospital, No. 1 East Banshan Road, Gongshu District, Hangzhou, Zhejiang, 310022, China
| | - Yuntian Zhu
- Department of Anesthesiology, Zhejiang Cancer Hospital, No. 1 East Banshan Road, Gongshu District, Hangzhou, Zhejiang, 310022, China.
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Liu X, Du H, Pan Y, Li X. New insights into the effect of VMP1 on the treatment of pressure overload-induced pathological cardiac hypertrophy: Involving SERCA-regulated autophagic flux. Microvasc Res 2023; 150:104572. [PMID: 37353069 DOI: 10.1016/j.mvr.2023.104572] [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: 03/27/2023] [Revised: 06/08/2023] [Accepted: 06/17/2023] [Indexed: 06/25/2023]
Abstract
Pathological cardiac hypertrophy is an adaptive reaction in response to pressure or volume overload. Autophagy is critical for damage caused by pathological cardiac hypertrophy. Vacuole membrane protein 1 (VMP1) is an endoplasmic reticulum (ER) transmembrane protein that is effective in activating autophagy. However, the role of VMP1 in pathological cardiac hypertrophy and its underlying mechanisms remain elusive. This study was designed to explore the potential mechanisms of VMP1 on pressure overload-induced pathological cardiac hypertrophy. In this work, abdominal aorta constriction (AAC) surgery was used to induce pathological cardiac hypertrophy in male C57BL/6 mice. H9C2 cardiomyocytes were treated with phenylephrine stimulation (PE) to induce the hypertrophic response. The in vivo results revealed that mice with AAC surgery caused pathological cardiac hypertrophy as evidenced by improved cardiac function according to multiple echocardiographic parameters. Moreover, elevated VMP1 expression was also observed in mice after AAC surgery. VMP1 knockdown aggravated changes in cardiac structure, cardiac dysfunction, and fibrosis. Meanwhile, VMP1 knockdown suppressed autophagy and endoplasmic reticulum calcium ATPase (SERCA) activity in heart tissues. H9C2 cardiomyocytes with VMP1 overexpression were used to investigate the specific mechanism of VMP1 in pathological cardiac hypertrophy, and VMP1 overexpression increased autophagic flux by upregulating SERCA activity. In conclusion, these findings revealed that VMP1 protected against pressure overload-induced pathological cardiac hypertrophy by inducing SERCA-regulated autophagic flux. Our results provide valuable insights regarding the pathophysiology of pathological cardiac hypertrophy and clues to a novel target for the treatment of pathological cardiac hypertrophy.
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Affiliation(s)
- Xue Liu
- Department of Cardiology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Hongjiao Du
- Department of Cardiology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Yilong Pan
- Department of Cardiology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Xiaodong Li
- Department of Cardiology, Shengjing Hospital of China Medical University, Shenyang 110004, China.
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Xiao Y, Yu Y, Hu L, Yang Y, Yuan Y, Zhang W, Luo J, Yu L. Matrine Alleviates Sepsis-Induced Myocardial Injury by Inhibiting Ferroptosis and Apoptosis. Inflammation 2023; 46:1684-1696. [PMID: 37219694 DOI: 10.1007/s10753-023-01833-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/29/2023] [Accepted: 05/06/2023] [Indexed: 05/24/2023]
Abstract
Matrine is a Sophora alkaloid that exerts antitumor effects on a variety of diseases, but few studies have investigated the role of matrine in sepsis-induced myocardial injury. In the present study, we investigated the effects of matrine on septic myocardial injury and the potential mechanisms. Network pharmacology approaches were used to predict the targets of matrine in the treatment of sepsis-induced myocardial injury. A mouse sepsis-induced myocardial injury model was established to determine the effect of matrine. Mouse cardiac function was evaluated by ultrasonography, and cardiac morphology and cardiomyocyte apoptosis were evaluated by HE and TUNEL staining. Oxidative stress was assessed by measuring ROS levels and MDA and SOD activity. Bax, Bcl2, GPX4, ACSL4, PI3K, and AKT protein levels were evaluated by immunohistochemical staining and western blotting. Bioinformatics analysis identified that the potential therapeutic effect of matrine on sepsis-induced myocardial injury is closely related to ferroptosis and apoptosis regulation and showed significant involvement of the PI3K/AKT signaling pathway. In vivo, the matrine group showed improved myocardial function, morphology, and apoptosis ratio and alleviated oxidative stress compared with the LPS group, whereas 25 mg/kg matrine exerted the optimal inhibitory effect. Matrine alleviated LPS-induced cardiomyocyte ferroptosis and apoptosis, resulting in upregulation of Bax/Bcl2 and GPX4 expression and downregulation of ferroptosis marker protein (ACSL4) expression, as shown by immunohistochemistry and western blotting. Moreover, matrine increased PI3K/AKT pathway-related molecule expression and thus modulated ferroptosis and apoptosis. Matrine regulates PI3K/AKT pathway activity to inhibit apoptosis and ferroptosis and thereby alleviates sepsis-induced myocardial injury.
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Affiliation(s)
- Yuhong Xiao
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yun Yu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Longlong Hu
- Department of Cardiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yuhui Yang
- HuanKui Academy of Nanchang University, Nanchang, Jiangxi, China
| | - Ye Yuan
- HuanKui Academy of Nanchang University, Nanchang, Jiangxi, China
| | - Wenjun Zhang
- Department of Rehabilitation Medicine, Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi, China
| | - Jun Luo
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Lingling Yu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
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Liu S, Fang X, Zhu R, Zhang J, Wang H, Lei J, Wang C, Wang L, Zhan L. Role of endoplasmic reticulum autophagy in acute lung injury. Front Immunol 2023; 14:1152336. [PMID: 37266445 PMCID: PMC10231642 DOI: 10.3389/fimmu.2023.1152336] [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: 01/30/2023] [Accepted: 05/03/2023] [Indexed: 06/03/2023] Open
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS), the prime causes of morbidity and mortality in critically ill patients, are usually treated by general supportive treatments. Endoplasmic reticulum autophagy (ER-phagy) maintains cellular homeostasis by degrading damaged endoplasmic reticulum (ER) fragments and misfolded proteins. ER-phagy is crucial for maintaining ER homeostasis and improving the internal environment. ER-phagy has a particular role in some aspects, such as immunity, inflammation, cell death, pathogen infection, and collagen quality. In this review, we summarized the definition, epidemiology, and pathophysiology of ALI/ARDS and described the regulatory mechanisms and functions of ER-phagy as well as discussed the potential role of ER-phagy in ALI/ARDS from the perspectives of immunity, inflammation, apoptosis, pathogen infection, and fibrosis to provide a novel and effective target for improving the prognosis of ALI/ARDS.
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Affiliation(s)
- Shiping Liu
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xiaoyu Fang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ruiyao Zhu
- Department of Infection Prevention and Control, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jing Zhang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Huijuan Wang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jiaxi Lei
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Chaoqun Wang
- College of Life Sciences, Wuhan University, Wuhan, China
| | - Lu Wang
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
| | - Liying Zhan
- Department of Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, China
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Zhu X, Li Q, George V, Spanoudis C, Gilkes C, Shrestha N, Liu B, Kong L, You L, Echeverri C, Li L, Wang Z, Chaturvedi P, Muniz GJ, Egan JO, Rhode PR, Wong HC. A novel interleukin-2-based fusion molecule, HCW9302, differentially promotes regulatory T cell expansion to treat atherosclerosis in mice. Front Immunol 2023; 14:1114802. [PMID: 36761778 PMCID: PMC9907325 DOI: 10.3389/fimmu.2023.1114802] [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: 12/06/2022] [Accepted: 01/03/2023] [Indexed: 01/27/2023] Open
Abstract
Atherosclerosis is a chronic inflammatory disease caused by deposition of oxidative low-density lipoprotein (LDL) in the arterial intima which triggers the innate immune response through myeloid cells such as macrophages. Regulatory T cells (Tregs) play an important role in controlling the progression or regression of atherosclerosis by resolving macrophage-mediated inflammatory functions. Interleukin-2 (IL-2) signaling is essential for homeostasis of Tregs. Since recombinant IL-2 has an unfavorable pharmacokinetic profile limiting its therapeutic use, we constructed a fusion protein, designated HCW9302, containing two IL-2 domains linked by an extracellular tissue factor domain. We found that HCW9302 exhibited a longer serum half-life with an approximately 1000-fold higher affinity for the IL-2Rα than IL-2. HCW9302 could be administered to mice at a dosing range that expanded and activated Tregs but not CD4+ effector T cells. In an ApoE-/- mouse model, HCW9302 treatment curtailed the progression of atherosclerosis through Treg activation and expansion, M2 macrophage polarization and myeloid-derived suppressor cell induction. HCW9302 treatment also lessened inflammatory responses in the aorta. Thus, HCW9302 is a potential therapeutic agent to expand and activate Tregs for treatment of inflammatory and autoimmune diseases.
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Protective effect and mechanism of γ-secretase inhibitor on myocardial injury in sepsis rats. Am J Transl Res 2023; 15:1017-1025. [PMID: 36915749 PMCID: PMC10006822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 12/28/2022] [Indexed: 03/16/2023]
Abstract
OBJECTIVE This study aimed to investigate the mechanism of γ-secretase inhibitor (GSI) in myocardial repair in septic rats. METHODS Thirty-six healthy male Wistar rats were randomly and equally divided into control groups, model group and intervention group. The model group and the intervention group were treated with ligation of cecum and perforation to build sepsis model, and the intervention group received intraperitoneal injection of GSI II (DAPT). Serum levels of Troponin T (cTnT), creatine kinase isoenzyme (CK-MB) and interleukin-17 were measured by ELISA. The Th17 cell percentage in peripheral blood mononuclear cells in CD4+ cells was determined by flow cytometry, and myocardial tissue cells in each group were measured by TUNEL. The mRNA of RORγt was measured by real-time quantitative PCR, and the protein expressions of Notch1, Hes1 and HIF-α in myocardial tissue were measured by Western blot. RESULTS The cTnT, CK-MB, Th17 and Th17/CD4+ levels in the model group and the intervention group were remarkably higher than those in the control group (P<0.05), while those in the intervention group were remarkably lower than those in the model group (P<0.05). Myocardial apoptosis rate, myocardial RORγt mRNA and protein expressions of Notch1, Hes1 and HIF-α in the model group and the intervention group were obviously higher than those in control group (P<0.05), and those in the intervention group were obvious lower than those in the model group (P<0.05). CONCLUSION γ secretase inhibitors have clearly protective effects on cardiomyocytes, and the mechanism may be associated with Notch blocking and RORγt expression, which inhibit immune damage induced by abnormal activation of Th17.
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Chen W, Mao H, Chen L, Li L. The pivotal role of FAM134B in selective ER-phagy and diseases. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119277. [PMID: 35477002 DOI: 10.1016/j.bbamcr.2022.119277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/01/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
FAM134B is also known as the reticulophagy regulator 1 (RETREG1) or JK-1. FAM134B consists of two long hydrophobic fragments with a reticulon-homology domain, an N-terminal cytoplasmic domain, and a C-terminal cytoplasmic domain. FAM134B plays an important role in regulating selective ER-phagy, and is related to the occurrence and development of many diseases. In the present review, we describe theFAM134B molecular structure, subcellular localization, tissue distribution, and review its mechanisms of action during selective ER-phagy. Furthermore, we summarize the relationship between FAM134B and diseases, including neoplastic diseases, degenerative diseases, central nervous system disease, and infectious diseases. Considering the pleiotropic action of FAM134B, targeting FAM134B may be a potent therapeutic avenue for these diseases.
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Affiliation(s)
- Wei Chen
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China
| | - Hui Mao
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China.
| | - Lanfang Li
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang 421001, Hunan, China.
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Mechanistic Research into the Effects of the Jianpi Xiaozhi Formula on Liver Injury in Diabetic Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:7490747. [PMID: 35911164 PMCID: PMC9328966 DOI: 10.1155/2022/7490747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/15/2022] [Accepted: 07/01/2022] [Indexed: 11/18/2022]
Abstract
Objective The purpose of this study was to explore the mechanism of Jianpi Xiaozhi Formula (JPXZF) action in attenuating liver injury in a rat model of type 2 diabetes mellitus (T2DM). Methods A rat model of T2DM was established. Forty-eight male Sprague–Dawley (SD) rats were randomly allocated to six groups: healthy untreated rats (normal control (NC)), rats with diabetes mellitus (DM), diabetic rats treated with low-dosage JPXZF (DM + JL), diabetic rats treated with an intermediate JPXZF dosage (DM + JM), diabetic rats treated with high-dosage JPXZF (DM + JH), and diabetic rats treated with 4-phenylbutyric acid (PBA) (DM + PBA). The rats in each group were given the indicated drugs for 8 weeks, and pathological changes in the liver tissues of each rat group were observed by haematoxylin-eosin (HE) staining. Reverse-transcription polymerase chain reaction (RT-PCR) and Western blotting (WB) were performed to determine the expression of glucose-regulated protein 78 (GRP78), activating transcription factor 6 (ATF6), family with sequence similarity 134, member B (FAM134B), P62, Beclin-1, and light chain 3II/I (LC3II/I) genes and proteins in the liver tissues of the rats in each group. Immunofluorescence was used to observe changes in FAM134B expression. Results After successfully establishing the rat model, RT-PCR assays revealed that, compared with those in the NC group rats, the expression levels of GRP78, ATF6, and P62 mRNA in the livers of the DM group rats were significantly increased, and the relative expression levels of FAM134B and Beclin-1 mRNA were significantly decreased. Compared with that in the DM group, the relative expression of GRP78, ATF6, and P62 mRNA in the liver of the rats in each JPXZF intervention group was decreased in a dosage-dependent manner, and the relative expression of FAM134B and Beclin-1 mRNA was increased significantly (p < 0.05). WB indicated that, compared with that in the NC group rats, the LC3II/I protein expression ratio in the liver of the DM group rats was significantly reduced, and the LC3II/I protein expression ratio in the liver of the rats in each JPXZF intervention group was significantly increased. In addition, the expression of the other measured proteins was consistent with that of the corresponding mRNA measured by RT-PCR (p < 0.05). The immunofluorescence assay results showed that FAM134B changes were consistent with the results obtained by RT-PCR and WB (p < 0.05). Conclusion Jianpi Xiaozhi Formula may be effective in treating liver injury in diabetic rats by regulating autophagy induced by endoplasmic reticulum stress (ERS).
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Gao L, Zhai Z, Shi Q, Yan J, Zhou L, Wu Y, Zeng Q, Tian G, Li H. MiR-501-5p alleviates cardiac dysfunction in septic patients through targeting NR4A3 to prevent its binding with Bcl-2. Cell Cycle 2022; 21:961-971. [PMID: 35230891 PMCID: PMC9037443 DOI: 10.1080/15384101.2022.2035618] [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] [Indexed: 11/03/2022] Open
Abstract
Sepsis-induced myocardial dysfunction is a common complication in septic patients. To date, a limited number of biomarkers that could predict cardiomyocyte apoptosis have been explored. In this study, we successfully established a cecal ligation and puncture (CLP)-induced septic model, and it was found that miR-501-5p expression was down-regulated in peripheral blood samples of septic patients with cardiac dysfunction, lipopolysaccharide (LPS)-induced cardiomyocytes, and the myocardium and peripheral blood in the septic model. Moreover, it was revealed that miR-501-5p overexpression could increase left ventricular diastolic pressure (LVDP), fractional shortening (FS), ejection fraction (EF), and maximum rate of the rise of left ventricular pressure (+dp/dt) in vivo, while it decreased the levels of myocardial injury-related indicators. In addition, LPS induction accelerated apoptosis and elevated the inflammation in HL-1 and HCM cells, which could be reversed by miR-501-5p overexpression. Mechanistically, we considered nuclear receptor subfamily 4 group A member 3 (NR4A3) as the target of miR-501-5p, and it was found that miR-501-5p prevented the binding between NR4A3 and Bcl-2. It was found that miR-501-5p exerted an inhibitory effect on cardiomyocyte apoptosis and inflammation in a NR4A3-dependent manner. Overall, our results may provide evidence for consideration of miR-501-5p in the therapy of sepsis.
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Affiliation(s)
- Lan Gao
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Zhongjie Zhai
- Department of Health Statistics, Faculty of Preventive Medicine, Air Force Medical University, Xi’an, Shaanxi, China
| | - Qindong Shi
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Jinqi Yan
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Linjing Zhou
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Yongxin Wu
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Qinjing Zeng
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Gang Tian
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China,CONTACT Gang Tian Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Hao Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China,Hao Li Department of Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, Xi'an, China
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Chen H, Qiao H, Zhao Q, Wei F. microRNA-135a-5p regulates NOD-like receptor family pyrin domain containing 3 inflammasome-mediated hypertensive cardiac inflammation and fibrosis via thioredoxin-interacting protein. Bioengineered 2022; 13:4658-4673. [PMID: 35148667 PMCID: PMC8973706 DOI: 10.1080/21655979.2021.2024956] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Hypertension is a severe public health problem that induces cardiac injury with alterations of gene expressions. The current study sought to evaluate the mechanism of microRNA(miR)-135a-5p in NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome-mediation of cardiac inflammation and hypertensive cardiac fibrosis. Firstly, hypertensive mouse models were established using angiotensin II (Ang II), followed by miR-135a-5p agomir treatment. Subsequently, mouse blood pressure and basic cardiac function indexes, histopathological changes, and cardiac fibrosis were all determined, in addition to detection of factors related to inflammation and fibrosis. Additionally, mice cardiac fibroblasts (CFs) were isolated and treated with Ang II. The binding relationship of miR-135a-5p and thioredoxin-interacting protein (TXNIP) was predicted and testified, while the interaction of TXNIP and NLRP3 was detected by means of a co-immunoprecipitation assay. It was found that miR-135a-5p was poorly-expressed in Ang II-treated mice and further exerted cardioprotective effects against hypertensive heart diseases. Moreover, over-expression of miR-135a-5p resulted in inhibition of inflammatory infiltration and almost eliminated cardiac fibrosis, as evidenced by decreased Collagen (COL)-I, COL-III, a-smooth muscle actin, NLRP3, tumor necrosis factor-α, and interleukin-6. Mechanically, miR-135a-5p inhibited TXNIP expression to block the binding of TXNIP and NLRP3. On the other hand, TXNIP up-regulation reversed the protective role of miR-135a-5p over-expression in CFs. Collectively, our findings indicated that miR-135a-5p over-expression inhibited TXNIP expression to block the binding of TXNIP and NLRP3, thereby alleviating hypertensive cardiac inflammation and fibrosis.
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Affiliation(s)
- Hao Chen
- Department of Cardiovascular Center, The 8th Medical Center of General Hospital of PLA, Beijing, China
| | - Huilian Qiao
- Department of Pathology, Air Force Medical Center PLA, Beijing, China
| | - Qiang Zhao
- Department of Cardiovascular Center, The 8th Medical Center of General Hospital of PLA, Beijing, China
| | - Fuling Wei
- Department of Cardiovascular Center, The 8th Medical Center of General Hospital of PLA, Beijing, China
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Yang Y, Zhang K, Huang S, Chen W, Mao H, Ouyang X, Chen L, Li L. Apelin‐13/APJ induces cardiomyocyte hypertrophy by activating the Pannexin‐1/P2X7 axis and FAM134B‐dependent reticulophagy. J Cell Physiol 2022; 237:2230-2248. [DOI: 10.1002/jcp.30685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 12/16/2021] [Accepted: 01/11/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Yiyuan Yang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Kai Zhang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Shifang Huang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Wei Chen
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Hui Mao
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Xueqian Ouyang
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Linxi Chen
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
| | - Lanfang Li
- School of Pharmaceutical Science Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study University of South China Hengyang China
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