1
|
Hongquan L, Nina C, Xia Y, Lujiang Z, Qiuyue R, Fan Y, Fei W, Hongping S, Ting Y, Qiuyan C, Ping W, Zaihui F. BECN1 regulates FADD/RIPK1/Caspase-8 complex formation via RIPK1 ubiquitination by downregulating OTUD1 in MI/R induced myocyte apoptosis. Int J Cardiol 2024; 408:132158. [PMID: 38744338 DOI: 10.1016/j.ijcard.2024.132158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/26/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND Cardiomyocyte apoptosis plays a vital role in myocardial ischemia-reperfusion (MI/R) injury; however, the role of beclin1 (BECN1) remains unclear. This study aimed at revealing the function of BECN1 during cardiomyocyte apoptosis after MI/R injury. METHODS In vivo, TTC and Evan's blue double staining was applied to verify the gross morphological alteration in both wild type (WT) mice and BECN1 transgene mice (BECN1-TG), and TUNEL staining and western blot were adopted to evaluate the cardiomyocyte apoptosis. In vitro, a hypoxia/reoxygenation (H/R) model was established in H9c2 cells to simulate MI/R injury. Proteomics analysis was preformed to verify if apoptosis occurs in the H/R cellular model. And apoptosis factors, RIPK1, Caspase-1, Caspase-3, and cleaved Caspase-3, were investigated using western bolting. In addition, the mRNA level were verified using RT-PCR. To further investigate the protein interactions small interfering RNA and lentiviral transfection were used. To continue investigate the protein interactions, immunofluorescence and coimmunoprecipitation were applied. RESULTS Morphologically, BECN1 significantly attenuated the apoptosis from TTC-Evan's staining, TUNEL, and cardiac tissue western blot. After H/R, a RIPK1-induced complex (complex II) containing RIPK1, Caspase-8, and FADD was formed. Thereafter, cleaved Caspase-3 was activated, and myocyte apoptosis occurred. However, BECN1 decreased the expression of RIPK1, Caspase-8, and FADD. Nevertheless, BECN1 overexpression increased RIPK1 ubiquitination before apoptosis by inhibiting OTUD1. CONCLUSIONS BECN1 regulates FADD/RIPK1/Caspase-8 complex formation via RIPK1 ubiquitination by downregulating OTUD1 in C-Caspase-3-induced myocyte apoptosis after MI/R injury. Therefore, BECN1 can function as a cardioprotective candidate.
Collapse
Affiliation(s)
- Lu Hongquan
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China; Department of Anatomy, Tarim University School of Medicine, Alaer, 843300, China
| | - Chen Nina
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China
| | - Yang Xia
- Department of Neurosurgery, Mianyang Central Hospital, Mianyang, China
| | - Zhan Lujiang
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China
| | - Ruan Qiuyue
- Department of Nephrology, the First People's Hospital of Honghe, Honghe 661000, China
| | - Yang Fan
- Department of Medicine, Honghe Health Vocational College, Honghe, 661100, China
| | - Wen Fei
- Department of Orthopedic, People's Hospital of Rongchang District, Chongqing 402460, China
| | - Shi Hongping
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China
| | - Yang Ting
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China
| | - Chen Qiuyan
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China
| | - Wang Ping
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China; Department of Anatomy, Tarim University School of Medicine, Alaer, 843300, China.
| | - Feng Zaihui
- Department of Radiology and Nuclear Medicine, the Third People's Hospital of Honghe, Honghe 661000, China.
| |
Collapse
|
2
|
Liu Y, Cheng X, Qi B, Wang Y, Zheng Y, Liang X, Chang Y, Ning M, Gao W, Li T. Aucubin protects against myocardial ischemia-reperfusion injury by regulating STAT3/NF-κB/HMGB-1 pathway. Int J Cardiol 2024; 400:131800. [PMID: 38244891 DOI: 10.1016/j.ijcard.2024.131800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/24/2023] [Accepted: 01/16/2024] [Indexed: 01/22/2024]
Abstract
The main characteristics of the myocardial ischemia/reperfusion injury (MI/RI) are oxidative stress, apoptosis, and an inflammatory response. Aucubin (AU) is an iridoid glycoside that possesses various biological properties and has been discovered to demonstrate antioxidant and anti-inflammatory impacts in pathological processes, such as ischemia-reperfusion. The objective of this research was to investigate if AU treatment could mitigate myocardial inflammation and apoptosis caused by ischemia/reperfusion (I/R) in both laboratory and animal models, and to elucidate its underlying mechanism. By ligating the coronary artery on the left anterior descending side, a successful MI/RI rat model was created. Additionally, H9C2 cells were subjected to hypoxia/reoxygenation (H/R) in order to imitate the injury caused by ischemia/reperfusion (I/R). Furthermore, various concentrations of AU were administered to H9C2 cells or rats before H/R stimulation or myocardial I/R surgery, respectively. In vitro, the assessment was conducted on cardiac function, inflammatory markers, and myocardial pathology. In vivo, we examined the viability of cells, as well as factors related to apoptosis and oxidative stress. Furthermore, the presence of proteins belonging to the STAT3/NF-κB/HMGB1 signaling pathway was observed both in vivo and in vitro. AU effectively improved cardiomyocyte injury caused by H/R and myocardial injury caused by I/R. Furthermore, AU suppressed the production of reactive oxygen species and inflammatory molecules (TNF-alpha, IL-1β, and IL-6) and proteins associated with cell death (caspase-3 and Bax), while enhancing the levels of anti-inflammatory agents (IL-10) and the anti-apoptotic protein Bcl-2.AU mechanistically affected the phosphorylation of STAT3 at the Ser727 site and Tyr705 following H/R by modulating the signaling pathway involving signal transducer and activator of transcription 3 (STAT3)/nuclear factor-κB (NF-κB)/high mobility group box 1 (HMGB1), while also suppressing the nuclear translocation of NF-κB p65 and HMGB1 exonucleation. In conclusion, the use of AU treatment might offer protection against myocardial infarction and injury by reducing oxidative stress, suppressing apoptosis, and mitigating inflammation. The regulation of the STAT3/NF-κB/HMGB-1 pathway may contribute to this phenomenon by affecting STAT3 phosphorylation and controlling NF-κB and HMGB-1 translocation. Contributes to identifying possible objectives for myocardial ischemia/reperfusion damage.
Collapse
Affiliation(s)
- Yanwu Liu
- The Third Central Clinical College of Tianjin Medical University, Tianjin 300170, China; Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China..
| | - Xian Cheng
- The Third Central Clinical College of Tianjin Medical University, Tianjin 300170, China; Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Bingcai Qi
- The Third Central Clinical College of Tianjin Medical University, Tianjin 300170, China; Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yuchao Wang
- Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yue Zheng
- Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Xiaoyu Liang
- Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yun Chang
- Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Meng Ning
- Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Wenqing Gao
- Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China..
| | - Tong Li
- The Third Central Clinical College of Tianjin Medical University, Tianjin 300170, China; Department of Heart Center, The Third Central Hospital of Tianjin, 83 Jintang Road, Hedong District, Tianjin 300170, China; Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China; School of Medicine, Nankai University, Tianjin 300071, China; Nankai University Affiliated Third Center Hospital, No. 83, Jintang Road, Hedong District, Tianjin 300170, China; Tianjin ECMO Treatment and Training Base, Tianjin 300170, China; Artificial Cell Engineering Technology Research Center, Tianjin, China..
| |
Collapse
|
3
|
Zhang Z, Xu Z, Wang S, Jia Z, Zhou Z, Wang C, Lin S, Feng Y, Wang X, Mao J. Optimized New Shengmai Powder modulation of cAMP/Rap1A signaling pathway attenuates myocardial fibrosis in heart failure. Chin Med 2024; 19:30. [PMID: 38402401 PMCID: PMC10894496 DOI: 10.1186/s13020-024-00902-4] [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: 10/25/2023] [Accepted: 02/06/2024] [Indexed: 02/26/2024] Open
Abstract
BACKGROUND Optimized New Shengmai Powder (ONSMP) is a traditional Chinese medicine formula with significant anti-heart failure and myocardial fibrosis effects, but the specific molecular biological mechanisms are not fully understood. METHODS In this study, we first used network pharmacology to analyze the ONSMP's active ingredients, core signaling pathways, and core targets. Second, calculate the affinity and binding modes of the ONSMP components to the core targets using molecular docking. Finally, the heart failure rat model was established by ligating the left anterior descending branch of the coronary artery and assessing the effect of ONSMP on myocardial fibrosis in heart failure using echocardiography, cardiac organ coefficients, heart failure markers, and pathological sections after 4 weeks of drug intervention. The cAMP level in rat myocardium was determined using Elisa, the α-SMA and FSP-1 positive expression determined by immunohistochemistry, and the protein and mRNA levels of the cAMP/Rap1A signaling pathway were detected by Western Blotting and quantitative real-time PCR, respectively. RESULTS The result shows that the possible mechanism of ONSMP in reducing myocardial fibrosis also includes the use of 12 active ingredients such as baicalin, vitamin D, resveratrol, tanshinone IIA, emodin, 15,16-dihydrotanshinone-i to regulate β1-AR, AC6, EPAC1, Rap1 A, STAT3, and CCND1 on the cAMP/Rap1A signaling pathway, thereby inhibiting the proliferation of cardiac fibroblasts and reduce the excessive secretion of collagen, effectively improve cardiac function and ventricular remodeling in heart failure rats. CONCLUSION This research shows that ONSMP can inhibit myocardial fibrosis and delay heart failure through the cAMP/Rap1A signaling pathway.
Collapse
Affiliation(s)
- Zeyu Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Zhe Xu
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Shuai Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China
| | - Zhuangzhuang Jia
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China
| | - Zhou Zhou
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Ci Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Shanshan Lin
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Yiting Feng
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China
- Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Xianliang Wang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China.
| | - Jingyuan Mao
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, People's Republic of China.
| |
Collapse
|
4
|
Jiang Y, Cai Y, Han R, Xu Y, Xia Z, Xia W. Salvianolic acids and its potential for cardio-protection against myocardial ischemic reperfusion injury in diabetes. Front Endocrinol (Lausanne) 2024; 14:1322474. [PMID: 38283744 PMCID: PMC10811029 DOI: 10.3389/fendo.2023.1322474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024] Open
Abstract
The incidence of diabetes and related mortality rate increase yearly in modern cities. Additionally, elevated glucose levels can result in an increase of reactive oxygen species (ROS), ferroptosis, and the disruption of protective pathways in the heart. These factors collectively heighten the vulnerability of diabetic individuals to myocardial ischemia. Reperfusion therapies have been effectively used in clinical practice. There are limitations to the current clinical methods used to treat myocardial ischemia-reperfusion injury. As a result, reducing post-treatment ischemia/reperfusion injury remains a challenge. Therefore, efforts are underway to provide more efficient therapy. Salvia miltiorrhiza Bunge (Danshen) has been used for centuries in ancient China to treat cardiovascular diseases (CVD) with rare side effects. Salvianolic acid is a water-soluble phenolic compound with potent antioxidant properties and has the greatest hydrophilic property in Danshen. It has recently been discovered that salvianolic acids A (SAA) and B (SAB) are capable of inhibiting apoptosis by targeting the JNK/Akt pathway and the NF-κB pathway, respectively. This review delves into the most recent discoveries regarding the therapeutic and cardioprotective benefits of salvianolic acid for individuals with diabetes. Salvianolic acid shows great potential in myocardial protection in diabetes mellitus. A thorough understanding of the protective mechanism of salvianolic acid could expand its potential uses in developing medicines for treating diabetes mellitus related myocardial ischemia-reperfusion.
Collapse
Affiliation(s)
- Yuxin Jiang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Guangdong, China
| | - Yin Cai
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China
| | - Ronghui Han
- Faculty of Chinese Medicine State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao SAR, China
| | - Youhua Xu
- Faculty of Chinese Medicine State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao SAR, China
| | - Zhengyuan Xia
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Guangdong, China
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Doctoral Training Platform for Research and Translation, BoShiWan, GuanChong Village, Shuanghe Town, ZhongXiang City, Hubei, China
| | - Weiyi Xia
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, Hong Kong SAR, China
- Doctoral Training Platform for Research and Translation, BoShiWan, GuanChong Village, Shuanghe Town, ZhongXiang City, Hubei, China
| |
Collapse
|
5
|
Al-Masri A. Apoptosis and long non-coding RNAs: Focus on their roles in Heart diseases. Pathol Res Pract 2023; 251:154889. [PMID: 38238070 DOI: 10.1016/j.prp.2023.154889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 01/23/2024]
Abstract
Heart disease is one of the principal death reasons around the world and there is a growing requirement to discover novel healing targets that have the potential to avert or manage these illnesses. On the other hand, apoptosis is a strongly controlled, cell removal procedure that has a crucial part in numerous cardiac problems, such as reperfusion injury, MI (myocardial infarction), consecutive heart failure, and inflammation of myocardium. Completely comprehending the managing procedures of cell death signaling is critical as it is the primary factor that influences patient mortality and morbidity, owing to cardiomyocyte damage. Indeed, the prevention of heart cell death appears to be a viable treatment approach for heart illnesses. According to current researches, a number of long non-coding RNAs cause the heart cells death via different methods that are embroiled in controlling the activity of transcription elements, the pathways that signals transmission within cells, small miRNAs, and the constancy of proteins. When there is too much cell death in the heart, it can cause problems like reduced blood flow, heart damage after restoring blood flow, heart disease in diabetics, and changes in the heart after reduced blood flow. Therefore, studying how lncRNAs control apoptosis could help us find new treatments for heart diseases. In this review, we present recent discoveries about how lncRNAs are involved in causing cell death in different cardiovascular diseases.
Collapse
Affiliation(s)
- Abeer Al-Masri
- Department of Physiology, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia.
| |
Collapse
|
6
|
Ohla J, Wiciński M, Słupski M, Zabrzyński J, Malinowski B. Cyclic AMP but Not Calmodulin as a Potential Wasoconstrictor in Simulated Reperfusion. Int J Mol Sci 2023; 24:10355. [PMID: 37373502 DOI: 10.3390/ijms241210355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/12/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
The phenomena of ischemia and reperfusion are associated with the pathological background of cardiovascular diseases. Ischemia is initiated by ischemia reperfusion injury (IRI), which involves disruption of intracellular signaling pathways and causes cell death. The aim of this study was to assess the reactivity of vascular smooth muscle cells in the conditions of induced ischemia and reperfusion, and to determine the mechanisms leading to contractility disorders. This study was conducted using classical pharmacometric methods on an isolated model of the rat caudal artery. The experiment consisted of the analysis of the final and initial perfusate pressure measurements after induction of arterial contraction with phenylephrine in the presence of forskolin and A7 hydrochloride, two ligands modifying the contractility of vascular smooth muscle cells (VSMC). The pharmacometric analysis showed that in simulated reperfusion, cyclic nucleotides have a vasoconstrictive effect, and calmodulin has a vasodilating effect. The responsiveness of vascular smooth muscle cells to the vasopressor effects of α1-adrenomimetics during reperfusion may change uncontrollably, and the effects of secondary messengers may be counter physiological. Further studies are needed to evaluate the function of other second messengers on VSMCs in the process of ischemia and reperfusion.
Collapse
Affiliation(s)
- Jakub Ohla
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-090 Bydgoszcz, Poland
| | - Michał Wiciński
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-090 Bydgoszcz, Poland
| | - Maciej Słupski
- Department of Hepatobiliary and General Surgery, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-090 Bydgoszcz, Poland
| | - Jan Zabrzyński
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-090 Bydgoszcz, Poland
| | - Bartosz Malinowski
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-090 Bydgoszcz, Poland
| |
Collapse
|
7
|
He Y, Zhang D, Zhang Q, Cai Y, Huang C, Xia Z, Wang S. MicroRNA-17-3p protects against excessive posthypoxic autophagy in H9C2 cardiomyocytes via PTEN-Akt-mTOR signaling pathway. Cell Biol Int 2023; 47:943-953. [PMID: 36934412 DOI: 10.1002/cbin.11999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 12/13/2022] [Accepted: 01/02/2023] [Indexed: 03/20/2023]
Abstract
The activity of phosphatase and tensin homolog (PTEN) can be inhibited by miR-17-3p, which results in attenuating myocardial ischemia/reperfusion injury (IRI), however, the mechanism behind this phenomenon is still elusive. Suppression of PTEN leads to augmented protein kinase B (Akt)/mammalian target of rapamycin (mTOR) signaling strength and constrained autophagy activation, which might be the one mechanism for the ameliorated myocardial IRI. Thus, we tested the hypothesis that miR-17-3p attenuated hypoxia/reoxygenation (H/R)-mediated damage in cardiomyocytes by downregulating excessive autophagy via the PTEN-Akt-mTOR axis. The expression of miR-17-3p was remarkably increased after H/R treatment (6-h hypoxia followed by 6-h reoxygenation; H6/R6), which was concomitant with the increase of the release of lactic acid dehydrogenase (cell injury marker) and the enhancement LC3II/I ratio (autophagy markers) in H9C2 cardiomyocytes. Ectoexpression of miR-17-3p agomir led to remarkable augmentation of miR-17-3p expression and evidently attenuated H/R-mediated cell damage and excessive autophagy. Furthermore, an increase in miR-17-3p expression elicited constrained phosphorylation of PTEN (Ser380 ) while enhanced the phosphorylation of Akt (Thr308 , Ser473 ) and mTOR (Ser536 ) after H/R stimulation. In addition, pretreatment with LY-294002 (an Akt selective inhibitor) and rapamycin (an mTOR selective inhibitor) significantly abrogated the protective function of miR-17-3p on H/R-mediated cell damage and autophagy in H9C2 cardiomyocytes. Taken together, these observations indicated that the enhancement of the PTEN/Akt/mTOR axis and the consequent suppression of autophagy overactivation might represent an underlying mechanism by which miR-17-3p attenuated H/R-mediated damage in H9C2 cells.
Collapse
Affiliation(s)
- Yi He
- Department of Anesthesiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Dengwen Zhang
- Department of Anesthesiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Qingqing Zhang
- Guangdong Provincial People's Hospital Ganzhou Hospital, Ganzhou Municipal Hospital, Ganzhou, China
| | - Yin Cai
- Department of Anesthesiology, The University of Hong Kong, Hong Kong SAR, China
| | - Chongfeng Huang
- Guangdong Provincial People's Hospital Ganzhou Hospital, Ganzhou Municipal Hospital, Ganzhou, China
| | - Zhengyuan Xia
- Department of Anesthesiology, The University of Hong Kong, Hong Kong SAR, China.,Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Guangdong, China
| | - Sheng Wang
- Department of Anesthesiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| |
Collapse
|
8
|
Yang Z, Yang X, An M. Polyphyllin I improves myocardial damage in coronary artery disease via modulating lipid metabolism and myocardial apoptosis. J Biochem Mol Toxicol 2022; 36:e23219. [PMID: 36120828 DOI: 10.1002/jbt.23219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 06/30/2022] [Accepted: 08/30/2022] [Indexed: 11/08/2022]
Abstract
Polyphyllin I (PPI) is a famous traditional medicine ingredient, which has been explored in wide range of areas. Nevertheless, whether PPI exerts any functions in coronary artery disease (CAD) is still uncertified. Herein, we probed the effect and mechanism of PPI on lipid metabolism and myocardial dysfunction in myocardial cells and CAD rat model. Hypoxia/reoxygenation (H/R)-treated H9c2 cells model was constructed for the in vitro experiments, and CAD model in vivo was established by high-fat feeding. After management with PPI, the correlated factors of lipid metabolism and myocardial function were investigated. The apoptosis of myocardial cells was assessed by Annexin V-FITC/PI kit and TUNEL staining. The apoptosis-associated factors (caspase 3, cleaved caspase 3, Bax, and Bcl-2) were tested by Western blot analysis. The MEK/ERK inhibitor was applied and the functions of MEK/ERK pathway in myocardial damage were investigated. H/R-treated H9c2 cells model was constructed for the in vitro experiments, and CAD model in vivo was established by high-fat feeding. After management with PPI, the correlated factors of lipid metabolism and myocardial function were investigated. The apoptosis of myocardial cells was assessed by Annexin V-FITC/PI kit and TUNEL staining. The apoptosis-associated factors (caspase 3, cleaved caspase 3, Bax, and Bcl-2) were tested by Western blot analysis. The MEK/ERK inhibitor was applied and the functions of MEK/ERK pathway in myocardial damage were investigated. PPI improved lipid metabolism disorder in H/R-induced H9c2 cells or in CAD rat model. Additionally, PPI attenuated myocardial dysfunction in CAD rats via enhancing left ventricular systolic pressure, maximum rate of change of left ventricular pressure (±dp/dtmax ), and arterial blood flow (CF). The apoptosis of myocardial cells was lessened by PPI management, which was further verified by reducing Bax and cleaved caspase 3 expression. Furthermore, PD0325901 (MEK/ERK inhibitor) weakened the effect of PPI on myocardial dysfunction, lipid metabolism, and myocardial cell apoptosis in CAD rats. The research confirmed the protective effect of PPI on myocardial damage in CAD, which was regulated by MEK/ERK pathway.
Collapse
Affiliation(s)
- Zhao Yang
- Department of Cardiology, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, China
| | - Xuming Yang
- Department of Cardiology, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, China
| | - Mingchun An
- Department of Cardiology, The Second Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, China
| |
Collapse
|
9
|
Pang L, Jiang X, Lian X, Chen J, Song EF, Jin LG, Xia ZY, Ma HC, Cai Y. Caloric restriction-mimetics for the reduction of heart failure risk in aging heart: with consideration of gender-related differences. Mil Med Res 2022; 9:33. [PMID: 35786219 PMCID: PMC9252041 DOI: 10.1186/s40779-022-00389-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 05/30/2022] [Indexed: 11/10/2022] Open
Abstract
The literature is full of claims regarding the consumption of polyphenol or polyamine-rich foods that offer some protection from developing cardiovascular disease (CVD). This is achieved by preventing cardiac hypertrophy and protecting blood vessels through improving the function of endothelium. However, do these interventions work in the aged human hearts? Cardiac aging is accompanied by an increase in left ventricular hypertrophy, along with diastolic and systolic dysfunction. It also confers significant cardiovascular risks for both sexes. The incidence and prevalence of CVD increase sharply at an earlier age in men than women. Furthermore, the patterns of heart failure differ between sexes, as do the lifetime risk factors. Do caloric restriction (CR)-mimetics, rich in polyphenol or polyamine, delay or reverse cardiac aging equally in both men and women? This review will discuss three areas: (1) mechanisms underlying age-related cardiac remodeling; (2) gender-related differences and potential mechanisms underlying diminished cardiac response in older men and women; (3) we select a few polyphenol or polyamine rich compounds as the CR-mimetics, such as resveratrol, quercetin, curcumin, epigallocatechin gallate and spermidine, due to their capability to extend health-span and induce autophagy. We outline their abilities and issues on retarding aging in animal hearts and preventing CVD in humans. We discuss the confounding factors that should be considered for developing therapeutic strategies against cardiac aging in humans.
Collapse
Affiliation(s)
- Lei Pang
- Department of Anesthesiology, the First Hospital of Jilin University, Changchun, 130021, China
| | - Xi Jiang
- Health Promotion Center, the First Hospital of Jilin University, Changchun, 130021, China
| | - Xin Lian
- Department of Urology, the First Hospital of Jilin University, Changchun, 130021, China
| | - Jie Chen
- Henry Fok School of Biology and Agriculture, Shaoguan University, Shaoguan, 512000, Guangdong, China
| | - Er-Fei Song
- Department of Metabolic and Bariatric Surgery, Jinan University First Affiliated Hospital, Guangzhou, 510630, China.,Department of Medicine, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong, China
| | - Lei-Gang Jin
- Department of Medicine, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong, China.,State Key Laboratory of Pharmaceutical Biotechnology, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong, China
| | - Zheng-Yuan Xia
- State Key Laboratory of Pharmaceutical Biotechnology, LKS Faculty of Medicine, the University of Hong Kong, Hong Kong, China.,Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, Guangdong, China
| | - Hai-Chun Ma
- Department of Anesthesiology, the First Hospital of Jilin University, Changchun, 130021, China.
| | - Yin Cai
- Department of Health Technology and Informatics, the Hong Kong Polytechnic University, Hong Kong, China.
| |
Collapse
|
10
|
MicroRNA-503 Exacerbates Myocardial Ischemia/Reperfusion Injury via Inhibiting PI3K/Akt- and STAT3-Dependent Prosurvival Signaling Pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3449739. [PMID: 35620576 PMCID: PMC9130001 DOI: 10.1155/2022/3449739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 04/07/2022] [Accepted: 04/21/2022] [Indexed: 12/28/2022]
Abstract
Acute myocardial infarction is a leading cause of death worldwide, while restoration of blood flow to previously ischemic myocardium may lead to ischemia/reperfusion (I/R) injury. Accumulated evidence shows that microRNAs play important roles in cardiovascular diseases. However, the potential role of microRNA-503 (miR-503) in myocardial I/R injury is little known. Thus, this study is aimed at determining whether and how miR-503 affects myocardial I/R injury in vivo and in vitro. A mouse model of myocardial I/R injury and H9c2 cell model of hypoxia/reoxygenation (H/R) injury were established. The postischemic cardiac miR-503 was downregulated in vivo and in vitro. Mechanistically, PI3K p85 and Bcl-2 are miR-503 targets. The post-ischemic cardiac PI3K p85 protein level was decreased in vivo. Agomir-503 treatment exacerbated H/R-induced injuries manifested as decreased cell viability, increased lactate dehydrogenase activity, and cell apoptosis. Agomir-503 treatment reduced cell viability under normoxia as well and reduced both PI3K p85 and Bcl-2 protein levels under either normoxia or H/R condition. It reduced phosphorylation of Stat3 (p-Stat3-Y705) and Akt (T450) in cells subjected to H/R. In contrast, Antagomir-503 treatment attenuated H/R injury and increased p-Stat3 (Y705) under normoxia and increased p-Akt (T450) under either normoxia or H/R condition. It is concluded that miR-503 exacerbated I/R injury via inactivation of PI3K/Akt and STAT3 pathways and may become a therapeutic target in preventing myocardial I/R injury.
Collapse
|
11
|
He J, Liu D, Zhao L, Zhou D, Rong J, Zhang L, Xia Z. Myocardial ischemia/reperfusion injury: Mechanisms of injury and implications for management (Review). Exp Ther Med 2022; 23:430. [PMID: 35607376 PMCID: PMC9121204 DOI: 10.3892/etm.2022.11357] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 04/13/2022] [Indexed: 01/18/2023] Open
Abstract
Myocardial infarction is one of the primary causes of mortality in patients with coronary heart disease worldwide. Early treatment of acute myocardial infarction restores blood supply of ischemic myocardium and decreases the mortality risk. However, when the interrupted myocardial blood supply is recovered within a certain period of time, it causes more serious damage to the original ischemic myocardium; this is known as myocardial ischemia/reperfusion injury (MIRI). The pathophysiological mechanisms leading to MIRI are associated with oxidative stress, intracellular calcium overload, energy metabolism disorder, apoptosis, endoplasmic reticulum stress, autophagy, pyroptosis, necroptosis and ferroptosis. These interplay with one another and directly or indirectly lead to aggravation of the effect. In the past, apoptosis and autophagy have attracted more attention but necroptosis and ferroptosis also serve key roles. However, the mechanism of MIRI has not been fully elucidated. The present study reviews the mechanisms underlying MIRI. Based on current understanding of the pathophysiological mechanisms of MIRI, the association between cell death-associated signaling pathways were elaborated, providing direction for investigation of novel targets in clinical treatment.
Collapse
Affiliation(s)
- Jianfeng He
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Danyong Liu
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Lixia Zhao
- Department of Anesthesiology, The Eighth Affiliated Hospital of Sun Yat‑Sen University, Shenzhen, Guangdong 518033, P.R. China
| | - Dongcheng Zhou
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Jianhui Rong
- Department of Internal Medicine, Shenzhen Institute of Research and Innovation, The University of Hong Kong, Shenzhen, Guangdong 518057, P.R. China
| | - Liangqing Zhang
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| | - Zhengyuan Xia
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524000, P.R. China
| |
Collapse
|
12
|
Xu C, Liu Y, Yang J, Zhai M, Fan Z, Qiao R, Jin P, Yang L. Effects of berbamine against myocardial ischemia/reperfusion injury: Activation of the 5' adenosine monophosphate-activated protein kinase/nuclear factor erythroid 2-related factor pathway and changes in the mitochondrial state. Biofactors 2022; 48:651-664. [PMID: 35129229 PMCID: PMC9305777 DOI: 10.1002/biof.1820] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/10/2021] [Indexed: 12/13/2022]
Abstract
This study was designed to investigate whether berbamine (BA)-induced cardioprotective effects were related to 5' adenosine monophosphate-activated protein kinase (AMPK)/nuclear factor erythroid 2-related factor (Nrf2) signaling and changes in the mitochondria in myocardial ischemia/reperfusion (I/R) injury. C57/BL6 mice were exposed to BA (10 mg/kg/d), with or without administration of the AMPK specific inhibitor compound C (5 mg/kg/d) or the Nrf2 specific inhibitor ML-385 (30 mg/kg/d), and then subjected to a myocardial I/R operation. As expected, BA significantly improved post-ischemic cardiac function, reduced infarct size and apoptotic cell death, decreased oxidative stress, and improved the mitochondrial state. Furthermore, BA markedly increased AMPK activation, Nrf2 nuclear translocation, and the levels of NAD(P)H quinone dehydrogenase and heme oxygenase-1. Nevertheless, these BA-induced changes were abrogated by compound C. In addition, ML-385 also canceled the cardioprotective effects of BA but had little effect on AMPK activation. Our results demonstrate that BA alleviates myocardial I/R injury and the mitochondrial state by inhibiting apoptosis and oxidative stress via the AMPK/Nrf2 signaling pathway.
Collapse
Affiliation(s)
- Chennian Xu
- Department of Cardiovascular SurgeryGeneral Hospital of Northern Theater CommandShenyangChina
- Department of Cardiovascular SurgeryXijing Hospital, Air Force Medical UniversityXi'anChina
| | - Yang Liu
- Department of Cardiovascular SurgeryXijing Hospital, Air Force Medical UniversityXi'anChina
| | - Jian Yang
- Department of Cardiovascular SurgeryXijing Hospital, Air Force Medical UniversityXi'anChina
| | - Mengen Zhai
- Department of Cardiovascular SurgeryXijing Hospital, Air Force Medical UniversityXi'anChina
| | - Zhenge Fan
- Department of Cardiovascular SurgeryXijing Hospital, Air Force Medical UniversityXi'anChina
| | - Rui Qiao
- Department of Cardiovascular SurgeryGeneral Hospital of Northern Theater CommandShenyangChina
| | - Ping Jin
- Department of Cardiovascular SurgeryXijing Hospital, Air Force Medical UniversityXi'anChina
| | - Lifang Yang
- Department of AnesthesiologyXi'an Children's HospitalXi'anChina
| |
Collapse
|
13
|
Chen Z, Wu J, Li S, Liu C, Ren Y. Inhibition of Myocardial Cell Apoptosis Is Important Mechanism for Ginsenoside in the Limitation of Myocardial Ischemia/Reperfusion Injury. Front Pharmacol 2022; 13:806216. [PMID: 35300297 PMCID: PMC8921549 DOI: 10.3389/fphar.2022.806216] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/09/2022] [Indexed: 12/25/2022] Open
Abstract
Ischemic heart disease has a high mortality, and the recommended therapy is reperfusion. Nevertheless, the restoration of blood flow to ischemic tissue leads to further damage, namely, myocardial ischemia/reperfusion injury (MIRI). Apoptosis is an essential pathogenic factor in MIRI, and ginsenosides are effective in inhibiting apoptosis and alleviating MIRI. Here, we reviewed published studies on the anti-apoptotic effects of ginsenosides and their mechanisms of action in improving MIRI. Each ginsenoside can regulate multiple pathways to protect the myocardium. Overall, the involved apoptotic pathways include the death receptor signaling pathway, mitochondria signaling pathway, PI3K/Akt signaling pathway, NF-κB signaling pathway, and MAPK signaling pathway. Ginsenosides, with diverse chemical structures, regulate different apoptotic pathways to relieve MIRI. Summarizing the effects and mechanisms of ginsenosides contributes to further mechanism research studies and structure–function relationship research studies, which can help the development of new drugs. Therefore, we expect that this review will highlight the importance of ginsenosides in improving MIRI via anti-apoptosis and provide references and suggestions for further research in this field.
Collapse
Affiliation(s)
- Zhihan Chen
- School of Acupuncture Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jingping Wu
- Department of Medical Cosmetology, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Sijing Li
- School of Acupuncture Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Caijiao Liu
- School of Acupuncture Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yulan Ren
- School of Chinese Classics, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| |
Collapse
|
14
|
Xie H, Shen XY, Zhao N, Ye P, Ge Z, Hu ZY. Ivabradine Ameliorates Cardiac Diastolic Dysfunction in Diabetic Mice Independent of Heart Rate Reduction. Front Pharmacol 2021; 12:696635. [PMID: 34239443 PMCID: PMC8259788 DOI: 10.3389/fphar.2021.696635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/04/2021] [Indexed: 12/03/2022] Open
Abstract
Cardiac fibroblast (CF) proliferation and activation play important roles in cardiac fibrosis and diastolic dysfunction (DD), which are involved in fibrosis-associated cardiovascular diseases. A previous study showed that ivabradine, a specific heart rate (HR)-lowering agent, significantly ameliorated DD in diabetic db/db mice by reducing HR. Herein, we attempted to determine whether ivabradine has antifibrotic and cardioprotective effects in diabetic mice by directly suppressing CF proliferation and activation, independent of a reduction in HR. We found that knockdown of c-Jun N-terminal kinase (JNK) or p38 mitogen-activated protein kinase (MAPK), or treatment with ivabradine, reduced JNK and p38 MAPK phosphorylation and the protein expression of proliferating cell nuclear antigen, collagen I, collagen III, tissue inhibitor of matrix metalloproteinase 2, and α-smooth muscle actin, accompanied with upregulation of matrix metalloproteinase 2 both in high glucose-treated neonatal rat CFs and left ventricular CFs isolated from db/db mice. However, zatebradine (a HR-lowering agent) did not have these effects in vitro or in vivo. In addition, cardiac fibrosis and DD were ameliorated in db/db mice that were intravenously administered lentiviruses carrying short hairpin RNAs targeting JNK and p38 MAPK or administered ivabradine. Taken together, these findings demonstrate that the ivabradine-induced amelioration of cardiac fibrosis, and DD in db/db mice may be at least in part attributable to the suppression of CF proliferation and activation, through the inhibition of JNK and p38 MAPK.
Collapse
Affiliation(s)
- Hao Xie
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xing-Yi Shen
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Na Zhao
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Peng Ye
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Zhen Ge
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Zuo-Ying Hu
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| |
Collapse
|
15
|
Cai Y, Liu H, Song E, Wang L, Xu J, He Y, Zhang D, Zhang L, Cheng KKY, Jin L, Wu M, Liu S, Qi D, Zhang L, Lopaschuk GD, Wang S, Xu A, Xia Z. Deficiency of telomere-associated repressor activator protein 1 precipitates cardiac aging in mice via p53/PPARα signaling. Theranostics 2021; 11:4710-4727. [PMID: 33754023 PMCID: PMC7978321 DOI: 10.7150/thno.51739] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 02/15/2021] [Indexed: 12/13/2022] Open
Abstract
Background: Telomere shortening and dysfunction may cause metabolic disorders, tissue damage and age-dependent pathologies. However, little is known about the association of telomere-associated protein Rap1 with mitochondrial energy metabolism and cardiac aging. Methods: Echocardiography was performed to detect cardiac structure and function in Rap1+/+ and Rap1-/- mice at different ages (3 months, 12 months and 20 months). Telomere length, DNA damage, cardiac senescence and cardiomyocyte size were analyzed using the real-time PCR, Western blotting, senescence associated β-galactosidase assay and wheat germ agglutinin staining, respectively. Western blotting was also used to determine the level of cardiac fatty acid metabolism related key enzymes in mouse and human myocardium. Chromatin immunoprecipitation assay was used to verify the direct link between p53 and PPARα. The p53 inhibitor, Pifithrin-α and PPARα activator WY14643 were utilized to identify the effects of Rap1/p53/PPARα signaling pathway. Results: Telomere was shortened concomitant with extensive DNA damage in aged Rap1-/- mouse hearts, evidenced by reduced T/S ratios and increased nuclear γH2AX. Meanwhile, the aging-associated phenotypes were pronounced as reflected by altered mitochondrial ultrastructure, enhanced senescence, cardiac hypertrophy and dysfunction. Mechanistically, acetylated p53 and nuclear p53 was enhanced in the Rap1-/- mouse hearts, concomitant with reduced PPARα. Importantly, p53 directly binds to the promoter of PPARα in mouse hearts and suppresses the transcription of PPARα. In addition, aged Rap1-/- mice exhibited reduced cardiac fatty acid metabolism. Pifithrin-α alleviated cardiac aging and enhanced fatty acid metabolism in the aged Rap1-/- mice. Activating PPARα with WY14643 in primarily cultured Rap1-/- cardiomyocytes restored maximal oxygen consumption rates. Reduced Rap1 expression and impaired p53/PPARα signaling also presented in aged human myocardium. Conclusion: In summary, Rap1 may link telomere biology to fatty acid metabolism and aging-related cardiac pathologies via modulating the p53/PPARα signaling pathway, which could represent a therapeutic target in preventing/attenuating cardiac aging.
Collapse
|
16
|
Yu P, Yang K, Jiang M. RXR α Blocks Nerve Regeneration after Spinal Cord Injury by Targeting p66shc. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8253742. [PMID: 33628383 PMCID: PMC7889345 DOI: 10.1155/2021/8253742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 12/28/2020] [Accepted: 01/17/2021] [Indexed: 11/18/2022]
Abstract
Nerve regeneration after spinal cord injury is regulated by many factors. Studies have found that the expression of retinoid X receptor α (RXRα) does not change significantly after spinal cord injury but that the distribution of RXRα in cells changes significantly. In undamaged tissues, RXRα is distributed in motor neurons and the cytoplasm of glial cells. RXRα migrates to the nucleus of surviving neurons after injury, indicating that RXRα is involved in the regulation of gene expression after spinal cord injury. p66shc is an important protein that regulates cell senescence and oxidative stress. It can induce the apoptosis and necrosis of many cell types, promoting body aging. The absence of p66shc enhances the resistance of cells to reactive oxygen species (ROS) and thus prolongs life. It has been found that p66shc deletion can promote hippocampal neurogenesis and play a neuroprotective role in mice with multiple sclerosis. To verify the function of RXRα after spinal cord injury, we established a rat T9 spinal cord transection model. After RXRα agonist or antagonist administration, we found that RXRα agonists inhibited nerve regeneration after spinal cord injury, while RXRα antagonists promoted the regeneration of injured neurites and the recovery of motor function in rats. The results showed that RXRα played an impeding role in repair after spinal cord injury. Immunofluorescence staining showed that p66shc expression was upregulated in neurons after spinal cord injury (in vivo and in vitro) and colocalized with RXRα. RXRα overexpression in cultured neurons promoted the expression of p66shc, while RXRα interference inhibited the expression of p66shc. Using a luciferase assay, we found that RXRα could bind to the promoter region of p66shc and regulate the expression of p66shc, thereby regulating nerve regeneration after spinal cord injury. The above results showed that RXRα inhibited nerve regeneration after spinal cord injury by promoting p66shc expression, and interference with RXRα or p66shc promoted functional recovery after spinal cord injury.
Collapse
Affiliation(s)
- Pei Yu
- Department of Orthopedics, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 97 Ruijin 2nd Road, Shanghai 200025, China
| | - Kai Yang
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Min Jiang
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| |
Collapse
|
17
|
Hotz PW, Wiesnet M, Tascher G, Braun T, Müller S, Mendler L. Profiling the Murine SUMO Proteome in Response to Cardiac Ischemia and Reperfusion Injury. Molecules 2020; 25:E5571. [PMID: 33260959 PMCID: PMC7731038 DOI: 10.3390/molecules25235571] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/20/2020] [Accepted: 11/24/2020] [Indexed: 01/31/2023] Open
Abstract
SUMOylation is a reversible posttranslational modification pathway catalyzing the conjugation of small ubiquitin-related modifier (SUMO) proteins to lysine residues of distinct target proteins. SUMOylation modifies a wide variety of cellular regulators thereby affecting a multitude of key processes in a highly dynamic manner. The SUMOylation pathway displays a hallmark in cellular stress-adaption, such as heat or redox stress. It has been proposed that enhanced cellular SUMOylation protects the brain during ischemia, however, little is known about the specific regulation of the SUMO system and the potential target proteins during cardiac ischemia and reperfusion injury (I/R). By applying left anterior descending (LAD) coronary artery ligation and reperfusion in mice, we detect dynamic changes in the overall cellular SUMOylation pattern correlating with decreased SUMO deconjugase activity during I/R injury. Further, unbiased system-wide quantitative SUMO-proteomics identified a sub-group of SUMO targets exhibiting significant alterations in response to cardiac I/R. Notably, transcription factors that control hypoxia- and angiogenesis-related gene expression programs, exhibit altered SUMOylation during ischemic stress adaptation. Moreover, several components of the ubiquitin proteasome system undergo dynamic changes in SUMO conjugation during cardiac I/R suggesting an involvement of SUMO signaling in protein quality control and proteostasis in the ischemic heart. Altogether, our study reveals regulated candidate SUMO target proteins in the mouse heart, which might be important in coping with hypoxic/proteotoxic stress during cardiac I/R injury.
Collapse
Affiliation(s)
- Paul W. Hotz
- Institute of Biochemistry II, Goethe University Medical School, University Hospital Building 75, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany; (P.W.H.); (G.T.)
| | - Marion Wiesnet
- Department of Cardiac Development and Remodeling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, 61231 Bad Nauheim, Germany; (M.W.); (T.B.)
| | - Georg Tascher
- Institute of Biochemistry II, Goethe University Medical School, University Hospital Building 75, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany; (P.W.H.); (G.T.)
| | - Thomas Braun
- Department of Cardiac Development and Remodeling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, 61231 Bad Nauheim, Germany; (M.W.); (T.B.)
| | - Stefan Müller
- Institute of Biochemistry II, Goethe University Medical School, University Hospital Building 75, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany; (P.W.H.); (G.T.)
| | - Luca Mendler
- Institute of Biochemistry II, Goethe University Medical School, University Hospital Building 75, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany; (P.W.H.); (G.T.)
| |
Collapse
|
18
|
Fu HR, Li XS, Zhang YH, Feng BB, Pan LH. Visnagin ameliorates myocardial ischemia/reperfusion injury through the promotion of autophagy and the inhibition of apoptosis. Eur J Histochem 2020; 64. [PMID: 32909422 PMCID: PMC7482183 DOI: 10.4081/ejh.2020.3131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 05/30/2020] [Indexed: 01/31/2023] Open
Abstract
Visnagin is a furanochromone and one of the main compounds of Ammi visnaga L. that had been used to treat nephrolithiasis in Ancient Egypt. Nowadays, visnagin was widely used to treat angina pectoris, urolithiasis and hypertriglyceridemia. The potential mechanisms of visnagin involved in inflammation and cardiovascular disease were also identified. But the protective effect of visnagin on myocardial ischemia/reperfusion injury has not been confirmed. Our aim was, for the first time, to investigate the potential protective effect of visnagin on cardiac function after myocardial ischemia-reperfusion injury in a rat model, and to identify its underlying mechanism involving the inhibition of apoptosis and induction of autophagy. Thirty SD rats were randomly divided into sham group, ischemia/reperfusion group (IR), ischemia/reperfusion with visnagin (IR + visnagin) group. Myocardial ischemia/Reperfusion injury model was established. Hemodynamic measurements and echocardiography were used to analyze cardiac function, TUNEL staining and caspase activity, LC3 dots were detected with immunofluorescence staining, LC3 expression was evaluated by western blot analysis, transmission electron microscopy (TEM) was used to detect autophagosomes. Compared with the sham group and visnagin group, the cardiac dysfunction, LC3II, autophagy flow in the IR+ visnagin group increased significantly (P<0.01), but the activity of caspase-3 and caspase-9 and the apoptotic in the IR + visnagin group decreased significantly (P<0.01). In conclusion, visnagin may play a protective role in ischemia/reperfusion injury by inducing autophagy and reducing apoptosis.
Collapse
Affiliation(s)
- Hai-Rong Fu
- Department of Basic Medicine, Three Gorges Medical College, Chongqing.
| | - Xiao-Shan Li
- Department of Basic Medicine, Three Gorges Medical College, Chongqing.
| | - Yong-Hui Zhang
- Department of Basic Medicine, Three Gorges Medical College, Chongqing.
| | - Bin-Bin Feng
- Department of Pharmacy, Three Gorges Medical College, Chongqing.
| | - Lian-Hong Pan
- Center for Natural Anti-tumor Medicine Engineering, Three Gorges Medical College, Chongqing.
| |
Collapse
|
19
|
MiR-181c-5p Promotes Inflammatory Response during Hypoxia/Reoxygenation Injury by Downregulating Protein Tyrosine Phosphatase Nonreceptor Type 4 in H9C2 Cardiomyocytes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7913418. [PMID: 32774684 PMCID: PMC7399766 DOI: 10.1155/2020/7913418] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/25/2020] [Accepted: 06/29/2020] [Indexed: 12/31/2022]
Abstract
Background Constitutive nuclear factor kappa B (NFκB) activation has been shown to exacerbate during myocardial ischemia/reperfusion (I/R) injury. We recently showed that miR-181c-5p exacerbated cardiomyocytes injury and apoptosis by directly targeting the 3′-untranslated region of protein tyrosine phosphatase nonreceptor type 4 (PTPN4). However, whether miR-181c-5p mediates cardiac I/R injury through NFκB-mediated inflammation is unknown. Thus, the present study aimed to investigate the role of miR-181c-5p during myocardial I/R injury and explore its mechanism in relation to inflammation in H9C2 cardiomyocytes. Methods and Results In hypoxia/reoxygenation (H/R, 6 h hypoxia followed by 6 h reoxygenation)-stimulated H9C2 cardiomyocytes or postischemic myocardium of rat, the expression of miR-181c-5p was significantly upregulated, which was concomitant increased NFκB activity when compared to the nonhypoxic or nonischemic control groups. This is indicative that miR-181c-5p may be involved in NFκB-mediated inflammation during myocardial I/R injury. To investigate the potential role of miR-181c-5p in H/R-induced cell inflammation and injury, H9C2 cardiomyocytes were transfected with the miR-181c-5p agomir. Overexpression of miR-181c-5p significantly aggravated H/R-induced cell injury (increased lactate dehydrogenase (LDH) level) and exacerbated NFκB-mediated inflammation (greater phosphorylation and degradation of IκBα, phosphorylation of p65, and increased levels of proinflammatory cytokines tumor necrosis factor α (TNFα), interleukin (IL)-6, and IL-1β). In contrast, inhibition of miR-181c-5p by its antagomir transfection in vitro had the opposite effect. Furthermore, overexpression of miR-181c-5p significantly enhanced lipopolysaccharide-induced NFκB signalling. Additionally, knockdown of PTPN4, the direct target of miR-181c-5p, significantly aggravated H/R-induced phosphorylation and degradation of IκBα, phosphorylation of p65, and the levels of proinflammatory cytokines. PTPN4 knockdown also cancelled miR-181c-5p antagomir mediated anti-inflammatory effects in H9C2 cardiomyocytes during H/R injury. Conclusions It is concluded that miR-181c-5p may exacerbate myocardial I/R injury and NFκB-mediated inflammation via PTPN4, and that targeting miR-181c-5p/PTPN4/NFκB signalling may represent a novel strategy to combat myocardial I/R injury.
Collapse
|
20
|
Li X, Ni L, Wang W, Zong L, Yao B. LncRNA Fendrr inhibits hypoxia/reoxygenation-induced cardiomyocyte apoptosis by downregulating p53 expression. J Pharm Pharmacol 2020; 72:1211-1220. [PMID: 32537758 DOI: 10.1111/jphp.13298] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/08/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVE LncRNA Fendrr plays an important role in cardiac development, but its role in myocardial ischaemia-reperfusion (I/R) injury remains unclear. P53 has been shown to be an important regulator of apoptosis and is involved in myocardial I/R-induced apoptosis. This study aims at investigating whether Fendrr affects hypoxia/reoxygenation (H/R)-induced cardiomyocyte apoptosis through p53. METHODS The left anterior descending coronary artery of the rat was ligated for 30 min and then reperfusion for 120 min by releasing the suture. Neonatal rat ventricular myocytes (NRVM) and rat cardiac cell line H9c2 were cultured for 6 h in hypoxia (95% N2 and 5% CO2 ), followed by reoxygenation (95% air and 5% CO2 ) for 6 h. Transfection were performed in cells. Apoptosis was detected by flow cytometry. Moreover, RNA pull-down, RNA immunoprecipitation, ubiquitination assay, GST pull-down assay and co-immunoprecipitation were used to detect the regulation of Fendrr on p53 protein. KEY FINDINGS Fendrr was decreased in I/R-induced myocardium and H/R-induced cardiomyocyte, and overexpression of Fendrr inhibited H/R-induced NRVM or H9c2 cells apoptosis. Further research found that the 1381-2100 nt of Fendrr bound to p53 protein and Fendrr promoted t direct binding of p53 to Cop1. The inhibition of Fendrr reduced the binding of E3 ubiquitin-protein ligase constitutive photomorphogenesis protein 1 (COP1) to p53 and reduced the ubiquitination of p53. Furthermore, the inhibition of Fendrr on H/R-induced NRVM or H9c2 cells apoptosis could be reversed by overexpression of p53. CONCLUSIONS Fendrr can inhibit H/R-induced cardiomyocyte apoptosis, which is partly through promoting the ubiquitination and degradation of p53 by increasing the binding of Cop1 and p53.
Collapse
Affiliation(s)
- Xiang Li
- Department of Cardiovascular, Affiliated Hospital of Jining Medical University, Jining, China
| | - Liangchun Ni
- Department of Cardiovascular, Affiliated Hospital of Jining Medical University, Jining, China
| | - Weixin Wang
- Department of Cardiovascular, Affiliated Hospital of Jining Medical University, Jining, China
| | - Liang Zong
- Department of Cardiovascular, Affiliated Hospital of Jining Medical University, Jining, China
| | - Bi Yao
- Department of Cardiovascular, Affiliated Hospital of Jining Medical University, Jining, China
| |
Collapse
|