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Wang J, Ye X, Wang Y. Anshen Shumai Decoction inhibits post-infarction inflammation and myocardial remodeling through suppression of the p38 MAPK/c-FOS/EGR1 pathway. J Mol Histol 2024:10.1007/s10735-024-10214-4. [PMID: 38874870 DOI: 10.1007/s10735-024-10214-4] [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: 10/21/2023] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
Anshen Shumai Decoction (ASSMD) is traditionally employed to manage coronary artery disease arrhythmias. Its protective efficacy against myocardial infarction remains to be elucidated. This investigation employed a rat model of myocardial infarction, achieved through the ligation of the left anterior descending (LAD) coronary artery, followed by a 28-day administration of ASSMD. The study observed the decoction's mitigative impact on myocardial injury, with gene regulation effects discerned through transcriptomic analysis. Furthermore, ASSMD's influence on cardiomyocyte apoptosis and fibrotic protein secretion was assessed using an embryonic rat cardiomyocyte cell line (H9c2) under hypoxic conditions and rat cardiac fibroblasts subjected to normoxic culture conditions with TGF-β. A functional rescue assay involving overexpression of FOS and Early Growth Response Factor 1 (EGR1), combined with inhibition of the p38 Mitogen-activated Protein Kinase (MAPK) pathway, was conducted. Results indicated that ASSMD significantly curtailed cardiomyocyte apoptosis and myocardial fibrosis in infarcted rats, primarily by downregulating FOS and EGR1 gene expression and inhibiting the upstream p38 MAPK pathway. These actions of ASSMD culminated in reduced expression of pro-apoptotic, collagen, and fibrosis-associated proteins, conferring myocardial protection and anti-fibrotic effects on cardiac fibroblasts.
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Affiliation(s)
- Jianfeng Wang
- Department of Cardiology, Chun'an County Traditional Chinese Medicine Hospital, No. 1 Xin'an West Road, Qiandaohu Town, Chun'an County, Hangzhou, 311700, P. R. China
| | - Xiaolei Ye
- School of Medicine, Ningbo University, Ningbo, 315211, P. R. China
| | - Yanqin Wang
- Department of Cardiology, Chun'an County Traditional Chinese Medicine Hospital, No. 1 Xin'an West Road, Qiandaohu Town, Chun'an County, Hangzhou, 311700, P. R. China.
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2
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Xu CM, Broadwin M, Faherty P, Teixeira RB, Sabra M, Sellke FW, Abid MR. Lack of cardiac benefit after intramyocardial or intravenous injection of mesenchymal stem cell-derived extracellular vesicles supports the need for optimized cardiac delivery. VESSEL PLUS 2023; 7:33. [PMID: 38812773 PMCID: PMC11136491 DOI: 10.20517/2574-1209.2023.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Aim To determine the differences in improvement in cardiac function by intramyocardial (IM) vs. intravenous (IV) injection of human bone mesenchymal stem cell-derived extracellular vesicles (HBMSC-EV) after acute MI. Methods FVB mice underwent acute MI via left anterior descending coronary artery ligation and subsequent injection of: (1) IM saline control; (2) IM HBMSC-EV; (3) IV saline control; and (4) IV HBMSC-EV. Cardiac function was evaluated with weekly postoperative echocardiography. On postoperative day 28, the mice were euthanized, and the heart, lungs, liver, spleen, and kidneys were harvested. Given previous studies showing HBMSC-EV hepatic uptake after IV injection, the liver was evaluated for changes in inflammation, fibrosis, and proliferation. Results On postoperative day 28, there were no significant differences in left ventricular ejection fraction (P = 0.6151), fractional shortening (P = 0.1135), or anterior border zone fibrosis (P = 0.6333) in any of the experimental groups. Interestingly, there was a strong trend demonstrating improvement in infarct size on fibrosis staining, which did not reach significance (P = 0.05620). There were no differences in hepatic inflammation, fibrosis, and proliferation. Conclusions Although there was a trend in the improvement in infarct size, a single-dose administration of neither IM nor IV injection of HBMSC-EV resulted in significant improvement in post-MI cardiac function. A major limitation of this study is the lack of trials determining the optimal dose of HBMSC-EV needed in this model. However, the current study demonstrates that future studies are required to either optimize administration or bioengineer HBMSC-EV with cardiac-homing properties.
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Affiliation(s)
- Cynthia M. Xu
- Cardiovascular Research Center, Rhode Island Hospital, Providence, RI 02903, USA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital Providence, Providence, RI 02903, USA
| | - Mark Broadwin
- Cardiovascular Research Center, Rhode Island Hospital, Providence, RI 02903, USA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital Providence, Providence, RI 02903, USA
| | - Patrick Faherty
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital Providence, Providence, RI 02903, USA
| | - Rayane Brinck Teixeira
- Cardiovascular Research Center, Rhode Island Hospital, Providence, RI 02903, USA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital Providence, Providence, RI 02903, USA
| | - Mohamed Sabra
- Cardiovascular Research Center, Rhode Island Hospital, Providence, RI 02903, USA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital Providence, Providence, RI 02903, USA
| | - Frank W. Sellke
- Cardiovascular Research Center, Rhode Island Hospital, Providence, RI 02903, USA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital Providence, Providence, RI 02903, USA
| | - M. Ruhul Abid
- Cardiovascular Research Center, Rhode Island Hospital, Providence, RI 02903, USA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital Providence, Providence, RI 02903, USA
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Xu CM, Sabe SA, Brinck‐Teixeira R, Sabra M, Sellke FW, Abid MR. Visualization of cardiac uptake of bone marrow mesenchymal stem cell-derived extracellular vesicles after intramyocardial or intravenous injection in murine myocardial infarction. Physiol Rep 2023; 11:e15568. [PMID: 36967241 PMCID: PMC10040402 DOI: 10.14814/phy2.15568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/05/2022] [Accepted: 12/24/2022] [Indexed: 03/29/2023] Open
Abstract
In animal models, human bone marrow mesenchymal stem cell-derived extracellular vesicles (MSC-EV) have been found to have beneficial effects in cardiovascular disease, but only when administered via intramyocardial injection. The biodistribution of either intravenous or intramyocardial injection of MSC-EV in the presence of myocardial injury is uncharacterized at this time. We hypothesized that intramyocardial injection will ensure delivery of MSC-EV to the ischemic myocardium, while intravenous injection will not. Human bone marrow mesenchymal stem cells were cultured and the MSC-EV were isolated and characterized. The MSC-EVs were then labeled with DiD lipid dye. FVB mice with normal cardiac function underwent left coronary artery ligation followed by either peri-infarct intramyocardial or tail vein injection of 3*106 or 2*109 particles of DiD-labeled MSC-EV or a DiD-saline control. The heart, lungs, liver, spleen and kidneys were harvested 2 h post-injection and were submitted for fluorescent molecular tomography imaging. Myocardial uptake of MSC-EV was only visualized after intramyocardial injection of 2*109 MSC-EV particles (p = 0.01) compared to control, and there were no differences in cardiac fluorescence after tail vein injection of MSC-EV (p = 0.5). There was no significantly detectable MSC-EV uptake in other organs after intramyocardial injection. After tail vein injection of 2*109 particles of MSC-EV, the liver (p = 0.02) and spleen (p = 0.04) appeared to have diffuse MSC-EV uptake compared to controls. Even in the presence of myocardial injury, only intramyocardial but not intravenous administration resulted in detectable levels of MSC-EV in the ischemic myocardium. This study confirms the role for intramyocardial injection in maximal and effective delivery of MSC-EV. Our ongoing studies aimed at developing bioengineered MSC-EV for targeted delivery to the heart may render MSC-EV clinically applicable for cardiovascular disease.
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Affiliation(s)
- Cynthia M. Xu
- Cardiovascular Research CenterRhode Island HospitalProvidenceRhode IslandUSA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital ProvidenceProvidenceRhode IslandUSA
| | - Sharif A. Sabe
- Cardiovascular Research CenterRhode Island HospitalProvidenceRhode IslandUSA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital ProvidenceProvidenceRhode IslandUSA
| | - Rayane Brinck‐Teixeira
- Cardiovascular Research CenterRhode Island HospitalProvidenceRhode IslandUSA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital ProvidenceProvidenceRhode IslandUSA
| | - Mohamed Sabra
- Cardiovascular Research CenterRhode Island HospitalProvidenceRhode IslandUSA
| | - Frank W. Sellke
- Cardiovascular Research CenterRhode Island HospitalProvidenceRhode IslandUSA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital ProvidenceProvidenceRhode IslandUSA
| | - M. Ruhul Abid
- Cardiovascular Research CenterRhode Island HospitalProvidenceRhode IslandUSA
- Division of Cardiothoracic Surgery Alpert Medical School of Brown University and Rhode Island Hospital ProvidenceProvidenceRhode IslandUSA
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Teixeira RB, Pfeiffer M, Zhang P, Shafique E, Rayta B, Karbasiafshar C, Ahsan N, Sellke FW, Abid MR. Reduction in mitochondrial ROS improves oxidative phosphorylation and provides resilience to coronary endothelium in non-reperfused myocardial infarction. Basic Res Cardiol 2023; 118:3. [PMID: 36639609 PMCID: PMC9839395 DOI: 10.1007/s00395-022-00976-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 12/30/2022] [Accepted: 12/30/2022] [Indexed: 01/15/2023]
Abstract
Recent studies demonstrated that mitochondrial antioxidant MnSOD that reduces mitochondrial (mito) reactive oxygen species (ROS) helps maintain an optimal balance between sub-cellular ROS levels in coronary vascular endothelial cells (ECs). However, it is not known whether EC-specific mito-ROS modulation provides resilience to coronary ECs after a non-reperfused acute myocardial infarction (MI). This study examined whether a reduction in endothelium-specific mito-ROS improves the survival and proliferation of coronary ECs in vivo. We generated a novel conditional binary transgenic animal model that overexpresses (OE) mitochondrial antioxidant MnSOD in an EC-specific manner (MnSOD-OE). EC-specific MnSOD-OE was validated in heart sections and mouse heart ECs (MHECs). Mitosox and mito-roGFP assays demonstrated that MnSOD-OE resulted in a 50% reduction in mito-ROS in MHEC. Control and MnSOD-OE mice were subject to non-reperfusion MI surgery, echocardiography, and heart harvest. In post-MI hearts, MnSOD-OE promoted EC proliferation (by 2.4 ± 0.9 fold) and coronary angiogenesis (by 3.4 ± 0.9 fold), reduced myocardial infarct size (by 27%), and improved left ventricle ejection fraction (by 16%) and fractional shortening (by 20%). Interestingly, proteomic and Western blot analyses demonstrated upregulation in mitochondrial complex I and oxidative phosphorylation (OXPHOS) proteins in MnSOD-OE MHECs. These MHECs also showed increased mitochondrial oxygen consumption rate (OCR) and membrane potential. These findings suggest that mito-ROS reduction in EC improves coronary angiogenesis and cardiac function in non-reperfused MI, which are associated with increased activation of OXPHOS in EC-mitochondria. Activation of an energy-efficient mechanism in EC may be a novel mechanism to confer resilience to coronary EC during MI.
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Affiliation(s)
- Rayane Brinck Teixeira
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Warren Alpert Medical School, 1 Hoppin Street, Providence, RI, 02903, USA
| | - Melissa Pfeiffer
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Warren Alpert Medical School, 1 Hoppin Street, Providence, RI, 02903, USA
| | - Peng Zhang
- Vascular Research Laboratory/Providence VA Medical Center and Department of Medicine, Alpert Medical School of Brown University, Providence, RI, USA
| | - Ehtesham Shafique
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Warren Alpert Medical School, 1 Hoppin Street, Providence, RI, 02903, USA
| | - Bonnie Rayta
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Warren Alpert Medical School, 1 Hoppin Street, Providence, RI, 02903, USA
| | - Catherine Karbasiafshar
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Warren Alpert Medical School, 1 Hoppin Street, Providence, RI, 02903, USA
| | - Nagib Ahsan
- Division of Biology and Medicine, Alpert Medical School, Brown University, Providence, RI, 02903, USA
- Proteomics Core Facility, Center for Cancer Research and Development, Rhode Island Hospital, Providence, RI, 02903, USA
- Department of Chemistry and Biochemistry, Mass Spectrometry, Proteomics and Metabolomics Core Facility, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK, USA
| | - Frank W Sellke
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Warren Alpert Medical School, 1 Hoppin Street, Providence, RI, 02903, USA
| | - M Ruhul Abid
- Division of Cardiothoracic Surgery, Department of Surgery, Cardiovascular Research Center, Rhode Island Hospital, Brown University Warren Alpert Medical School, 1 Hoppin Street, Providence, RI, 02903, USA.
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Johny E, Dutta P. Left Coronary Artery Ligation: A Surgical Murine Model of Myocardial Infarction. J Vis Exp 2022:10.3791/64387. [PMID: 36036590 PMCID: PMC10444521 DOI: 10.3791/64387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023] Open
Abstract
Ischemic heart disease and subsequent myocardial infarction (MI) is one of the leading causes of mortality in the United States and around the world. In order to explore the pathophysiological changes after myocardial infarction and design future treatments, research models of MI are required. Permanent ligation of the left coronary artery (LCA) in mice is a popular model to investigate cardiac function and ventricular remodeling post MI. Here we describe a less invasive, reliable, and reproducible surgical murine MI model by permanent ligation of the LCA. Our surgical model comprises of an easily reversible general anesthesia, endotracheal intubation that does not require a tracheotomy, and a thoracotomy. Electrocardiography and troponin measurement should be performed to ensure MI. Echocardiography at day 28 after MI will discern heart function and heart failure parameters. The degree of cardiac fibrosis can be evaluated by Masson's trichrome staining and cardiac MRI. This MI model is useful for studying the pathophysiological and immunological alterations after MI.
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Affiliation(s)
- Ebin Johny
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, Department of Medicine, University of Pittsburgh
| | - Partha Dutta
- Pittsburgh Heart, Lung, Blood, and Vascular Medicine Institute, Department of Medicine, University of Pittsburgh; Department of Immunology, University of Pittsburgh; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh;
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Qiu F, Yuan Y, Luo W, Gong YS, Zhang ZM, Liu ZM, Gao L. Asiatic acid alleviates ischemic myocardial injury in mice by modulating mitophagy- and glycophagy-based energy metabolism. Acta Pharmacol Sin 2022; 43:1395-1407. [PMID: 34522006 PMCID: PMC9160258 DOI: 10.1038/s41401-021-00763-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 08/10/2021] [Indexed: 02/07/2023] Open
Abstract
Myocardial infarction (MI) causes disturbances in myocardial energy metabolism, ultimately leading to a poor prognosis. Cytosolic glycogen autophagy (glycophagy) and mitochondrial autophagy (mitophagy) are upregulated in MI to optimize energy metabolism but to a limited extent. Asiatic acid (AA), a pentacyclic triterpene derived from the traditional Chinese herb Centella asiatica, displays anti-inflammatory, antioxidant, and antiapoptotic activities. AA has been found to alleviate focal cerebral and liver ischemic injury by reversing mitochondrial dysfunction. In this study, we investigated whether AA exerted cardioprotective effects against MI by activating glycophagy and mitophagy to improve the energy balance. In vitro cardioprotective effects were examined in neonatal mouse cardiomyocytes subjected to oxygen-glucose deprivation for 12 h. Treatment with AA (2-50 μM) significantly increased cell viability and improved the energy metabolism evidenced by increased ATP level and phosphocreatine/ATP ratio. In vivo cardioprotective effects were studied in a mouse model of MI. Administration of AA (5-125 mg·kg-1·d-1, ig) significantly reduced infarct size and ischemic myocardial injury, and improved cardiac function. AA treatment also promoted mitophagy and relieved mitochondrial edema evidenced by increased number of mitophagosomes in ischemic myocardium in vivo and increased mitochondria-light chain 3 (LC3)-II colocalization in ODG-treated cardiomyocytes in vitro. Mitophagy activation was accompanied by activation of the AMPK signaling pathway. Knockdown of AMPK abolished AA-activated mitophagy. Furthermore, we showed that glycophagy was upregulated in OGD cardiomyocytes evidenced by increased starch binding domain protein 1 (STBD1)-GABA type A receptor-associated protein-like 1(GABARAPL1) interaction and extracellular acidification rate, whereas AA treatment further promoted glycophagy accompanied by PI3K/Akt activation. PI3K inhibitor LY294002 or Akt inhibitor GSK690693 blocked the effects of AA on glycophagy and glycolysis. Finally, simultaneous inhibition of glycophagy and mitophagy abolished the cardioprotective effects and energy regulation of AA. These results demonstrate that AA protects ischemic cardiomyocytes by modulating glycophagy- and mitophagy-based energy metabolism through the PI3K/Akt and AMPK pathways.
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Affiliation(s)
- Fan Qiu
- grid.452753.20000 0004 1799 2798Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200123, China ,grid.452753.20000 0004 1799 2798Department of Cardiovascular and Thoracic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Yi Yuan
- grid.452753.20000 0004 1799 2798Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200123, China
| | - Wei Luo
- grid.452753.20000 0004 1799 2798Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200123, China ,grid.452753.20000 0004 1799 2798Department of Cardiovascular and Thoracic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| | - Yan-shan Gong
- grid.452753.20000 0004 1799 2798Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200123, China
| | - Zhong-ming Zhang
- grid.413389.40000 0004 1758 1622Department of Cardiovascular and Thoracic Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221006, China
| | - Zhong-min Liu
- grid.452753.20000 0004 1799 2798Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200123, China ,grid.452753.20000 0004 1799 2798Department of Cardiovascular and Thoracic Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China ,grid.452753.20000 0004 1799 2798Shanghai Institute of Stem Cell Research and Clinical translation, Shanghai East Hospital, Tongji University, Shanghai 200120, China ,Shanghai Engineering Research Center for Stem Cell Clinical Treatment, Shanghai 200123, China
| | - Ling Gao
- grid.452753.20000 0004 1799 2798Translational Medical Center for Stem Cell Therapy & Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200123, China ,grid.452753.20000 0004 1799 2798Shanghai Institute of Stem Cell Research and Clinical translation, Shanghai East Hospital, Tongji University, Shanghai 200120, China ,Shanghai Engineering Research Center for Stem Cell Clinical Treatment, Shanghai 200123, China
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Chen P, Zhou D, Liu Y, Wang P, Wang W. Peiminine inhibits myocardial injury and fibrosis after myocardial infarction in rats by regulating mitogen-activated protein kinase pathway. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2022; 26:87-94. [PMID: 35203059 PMCID: PMC8890941 DOI: 10.4196/kjpp.2022.26.2.87] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/01/2021] [Accepted: 09/07/2021] [Indexed: 12/15/2022]
Abstract
Myocardial infarction promotes cardiac remodeling and myocardial fibrosis, thus leading to cardiac dysfunction or heart failure. Peiminine has been regarded as a traditional anti-fibrotic Chinese medicine in pulmonary fibrosis. However, the role of peiminine in myocardial infarction-induced myocardial injury and fibrosis remained elusive. Firstly, rat model of myocardial infarction was established using ligation of the left coronary artery, which were then intraperitoneally injected with 2 or 5 mg/kg peiminine once a day for 4 weeks. Echocardiography and haemodynamic evaluation results showed that peiminine treatment reduced left ventricular end-diastolic pressure, and enhanced maximum rate of increase/decrease of left ventricle pressure (± dP/dt max) and left ventricular systolic pressure, which ameliorate the cardiac function. Secondly, myocardial infarction-induced myocardial injury and infarct size were also attenuated by peiminine. Moreover, peiminine inhibited myocardial infarction-induced increase of interleukin (IL)-1β, IL-6 and tumor necrosis factor-α production, as well as the myocardial cell apoptosis, in the rats. Thirdly, peiminine also decreased the myocardial fibrosis related protein expression including collagen I and collagen III. Lastly, peiminine reduced the expression of p38 and phosphorylation of extracellular signal-regulated kinase 1/2 in rat model of myocardial infarction. In conclusion, peiminine has a cardioprotective effect against myocardial infarction-induced myocardial injury and fibrosis, which can be attributed to the inactivation of mitogen-activated protein kinase pathway.
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Affiliation(s)
- Peng Chen
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Dengming Zhou
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Yongsheng Liu
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Ping Wang
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
| | - Weina Wang
- Department of Vasculocardiology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, Hubei 441000, China
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Yang L, Wang T, Zhang X, Zhang H, Yan N, Zhang G, Yan R, Li Y, Yu J, He J, Jia S, Wang H. Exosomes derived from human placental mesenchymal stem cells ameliorate myocardial infarction via anti-inflammation and restoring gut dysbiosis. BMC Cardiovasc Disord 2022; 22:61. [PMID: 35172728 PMCID: PMC8851843 DOI: 10.1186/s12872-022-02508-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 02/09/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Myocardial infarction (MI) represents a severe cardiovascular disease with limited therapeutic agents. This study was aimed to elucidate the role of the exosomes derived from human placental mesenchymal stem cells (PMSCs-Exos) in MI. METHODS PMSCs were isolated and cultured in vitro, with identification by both transmission electron microscopy (TEM) and nanoparticle tracking analysis (NTA). To further investigate the effects of PMSC-Exos on MI, C57BL/6 mice were randomly divided into Sham group, MI group, and PMSC-Exos group. After 4 weeks of the intervention, cardiac function was assessed by cardiac echocardiography, electrocardiogram and masson trichrome staining; lipid indicators were determined by automatic biochemical instrument; inflammatory cytokines were measured by cytometric bead array (CBA); gut microbiota, microbial metabolites short chain fatty acids (SCFAs) as well as lipopolysaccharide (LPS) were separately investigated by 16S rRNA high throughput sequencing, gas chromatography mass spectrometry (GC-MS) and tachypleus amebocyte lysate kit; transcriptome analysis was used to test the transcriptional components (mRNA\miRNA\cirRNA\lncRNA) of PMSC-Exos. RESULTS We found that human PMSC-Exos were obtained and identified with high purity and uniformity. MI model was successfully established. Compared to MI group, PMSC-Exos treatment ameliorated myocardial fibrosis and left ventricular (LV) remodeling (P < 0.05). Moreover, PMSC-Exos treatment obviously decreased MI molecular markers (AST/BNP/MYO/Tn-I/TC), pro-inflammatory indicators (IL-1β, IL-6, TNF-α, MCP-1), as well as increased HDL in comparison with MI group (all P < 0.05). Intriguingly, PMSC-Exos intervention notably modulated gut microbial community via increasing the relative abundances of Bacteroidetes, Proteobacteria, Verrucomicrobia, Actinobacteria, Akkermansia, Bacteroides, Bifidobacterium, Thauera and Ruminiclostridium, as well as decreasing Firmicutes (all P < 0.05), compared with MI group. Furthermore, PMSC-Exos supplementation increased gut microbiota metabolites SCFAs (butyric acid, isobutyric acid and valeric acid) and decreased LPS in comparison with MI group (all P < 0.05). Correlation analysis indicated close correlations among gut microbiota, microbial SCFAs and inflammation in MI. CONCLUSIONS Our study highlighted that PMSC-Exos intervention alleviated MI via modulating gut microbiota and suppressing inflammation.
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Affiliation(s)
- Libo Yang
- Clinical Medical College, Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Heart Centre and Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, 750004 China
| | - Ting Wang
- Department of Pathogenic Biology and Medical Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004 Ningxia China
| | - Xiaoxia Zhang
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, 750004 Ningxia China
| | - Hua Zhang
- Heart Centre and Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, 750004 Ningxia China
| | - Ning Yan
- Clinical Medical College, Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Heart Centre and Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, 750004 China
| | - Guoshan Zhang
- Heart Centre and Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, 750004 Ningxia China
| | - Ru Yan
- Heart Centre and Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, 750004 China
| | - Yiwei Li
- Department of Pathogenic Biology and Medical Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004 Ningxia China
| | - Jingjing Yu
- Clinical Medical College, Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Department of Beijing National Biochip Research Center Sub-Center in Ningxia, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Jun He
- Heart Centre and Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, 750004 China
| | - Shaobin Jia
- Clinical Medical College, Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Heart Centre and Department of Cardiovascular Diseases, General Hospital of Ningxia Medical University, Yinchuan, 750004 Ningxia China
- Ningxia Key Laboratory of Vascular Injury and Repair Research, Ningxia Medical University, Yinchuan, 750004 China
| | - Hao Wang
- Department of Pathogenic Biology and Medical Immunology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004 Ningxia China
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Liu S, Yan Y. Animal models of pulmonary hypertension due to left heart disease. Animal Model Exp Med 2022; 5:197-206. [PMID: 35234367 PMCID: PMC9240728 DOI: 10.1002/ame2.12214] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/13/2022] [Accepted: 01/23/2022] [Indexed: 01/02/2023] Open
Abstract
Pulmonary hypertension due to left heart disease (PH‐LHD) is regarded as the most prevalent form of pulmonary hypertension (PH). Indeed, PH is an independent risk factor and predicts adverse prognosis for patients with left heart disease (LHD). Clinically, there are no drugs or treatments that directly address PH‐LHD, and treatment of LHD alone will not also ameliorate PH. To target the underlying physiopathological alterations of PH‐LHD and to develop novel therapeutic approaches for this population, animal models that simulate the pathophysiology of PH‐LHD are required. There are several available models for PH‐LHD that have been successfully employed in rodents or large animals by artificially provoking an elevated pressure load on the left heart, which by transduction elicits an escalated pressure in pulmonary artery. In addition, metabolic derangement combined with aortic banding or vascular endothelial growth factor receptor antagonist is also currently applied to reproduce the phenotype of PH‐LHD. As of today, none of the animal models exactly recapitulates the condition of patients with PH‐LHD. Nevertheless, the selection of an appropriate animal model is essential in basic and translational studies of PH‐LHD. Therefore, this review will summarize the characteristics of each PH‐LHD animal model and discuss the advantages and limitations of the different models.
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Affiliation(s)
- Shao‐Fei Liu
- Charité—Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
- DZHK (German Centre for Cardiovascular Research) Partner Site Berlin Berlin Germany
| | - Yi Yan
- Institute for Cardiovascular Prevention (IPEK) Ludwig‐Maximilians‐University Munich Munich Germany
- DZHK (German Centre for Cardiovascular Research) Partner Site Munich Heart Alliance Munich Germany
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10
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Brandt EB, Mahmoud AI. Quantifying Cardiomyocyte Proliferation and Nucleation to Assess Mammalian Cardiac Regeneration. Methods Mol Biol 2022; 2485:243-253. [PMID: 35618910 DOI: 10.1007/978-1-0716-2261-2_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neonatal mice display a remarkable ability to regenerate their heart following an injury during the first week of life. A key facet of successful cardiac regeneration is the proliferation of cardiomyocytes to replace the lost cells. Stimulating cardiomyocyte proliferation in the adult heart is a very promising approach to restore cardiac structure and function following injury. Here, we outline our approach to assess cardiomyocyte proliferation following a myocardial injury via the cell cycle markers phospho-histone H3 and Aurora B. We additionally discuss how we assess successful regeneration using wheat germ agglutinin to measure cardiomyocyte size, nuclear staining to quantify cardiomyocyte nucleation, and Trichrome staining to identify myocardial regeneration and scarring in the myocardium.
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Affiliation(s)
- Emma B Brandt
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Ahmed I Mahmoud
- Department of Cell and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
- University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
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11
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Böttner J, Werner S, Adams V, Knauth S, Kricke A, Thiele H, Büttner P. Structural and functional alterations in heart and skeletal muscle following severe TAC in mice: impact of moderate exercise training. Biol Res 2021; 54:31. [PMID: 34538250 PMCID: PMC8451113 DOI: 10.1186/s40659-021-00354-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/30/2021] [Indexed: 11/10/2022] Open
Abstract
Background Heart failure (HF) is the leading cause of death in western countries. Cardiac dysfunction is accompanied by skeletal alterations resulting in muscle weakness and fatigue. Exercise is an accepted interventional approach correcting cardiac and skeletal dysfunction, thereby improving mortality, re-hospitalization and quality of life. Animal models are used to characterize underpinning mechanisms. Transverse aortic constriction (TAC) results in cardiac pressure overload and finally HF. Whether exercise training improves cardiac remodeling and peripheral cachexia in the TAC mouse model was not analyzed yet. In this study, 2 weeks post TAC animals were randomized into two groups either performing a moderate exercise program (five times per week at 60% VO2 max for 40 min for a total of 8 weeks) or staying sedentary. Results In both TAC groups HF characteristics reduced ejection fraction (− 15% compared to sham, p < 0.001), cardiac remodeling (+ 22.5% cardiomyocyte cross sectional area compared to sham; p < 0.001) and coronary artery congestion (+ 34% diameter compared to sham; p = 0.008) were observed. Unexpectedly, peripheral cachexia was not detected. Furthermore, compared to sedentary group animals from the exercise group showed aggravated HF symptoms [heart area + 9% (p = 0.026), heart circumference + 7% (p = 0.002), right ventricular wall thickness − 30% (p = 0.003)] while muscle parameters were unchanged [Musculus soleus fiber diameter (p = 0.55), Musculus extensor digitorum longus contraction force (p = 0.90)]. Conclusion The severe TAC model is inappropriate to study moderate exercise effects in HF with respect to cardiac and skeletal muscle improvements. Further, the phenotype induced by different TAC procedures should be well documented and taken into account when planning experiments.
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Affiliation(s)
- Julia Böttner
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany.
| | - Sarah Werner
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany
| | - Volker Adams
- Laboratory of Molecular and Experimental Cardiology, TU Dresden, Heart Center Dresden, Dresden, Germany
| | - Sarah Knauth
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany
| | - Angela Kricke
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany
| | - Holger Thiele
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany
| | - Petra Büttner
- Department of Cardiology, Heart Center Leipzig at University of Leipzig, Strümpellstr. 39, 04289, Leipzig, Germany
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12
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Hu G, Ding X, Gao F, Li J. Calcium and integrin binding protein 1 (CIB1) induces myocardial fibrosis in myocardial infarction via regulating the PI3K/Akt pathway. Exp Anim 2021; 71:1-13. [PMID: 34349085 PMCID: PMC8828404 DOI: 10.1538/expanim.21-0063] [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] [Indexed: 11/20/2022] Open
Abstract
Myocardial infarction (MI) is a severe coronary artery disease resulted from substantial and sustained ischemia. Abnormal upregulation of calcium and integrin binding protein 1 (CIB1) has
been found in several cardiovascular diseases. In this study, we established a mouse model of MI by permanent ligation of the left anterior descending coronary artery. CIB1 was upregulated
in the heart of MI mice. Notably, CIB1 knockdown by intramuscular injection of lentivirus-mediated short hairpin RNA (shRNA) targeting Cib1 improved cardiac function and
attenuated myocardial hypertrophy and infarct area in MI mice. MI-induced upregulation of α-SMA, vimentin, Collagen I, and Collagen III, which resulted in collagen production and myocardial
fibrosis, were regressed by CIB1 silencing. In vitro, cardiac fibroblasts (CFs) isolated from mice were subjected to angiotensin II (Ang II) treatment. Inhibition of CIB1
downregulated the expression of α-SMA, vimentin, Collagen I, and Collagen III in Ang II-treated CFs. Moreover, CIB1 knockdown inhibited Ang II-induced phosphorylation of PI3K-p85 and Akt in
CFs. The effect of CIB1 knockdown on Ang II-induced cellular injury was comparable to that of LY294002, a specific inhibitor of the PI3K/Akt pathway. We demonstrated that MI-induced cardiac
hypertrophy, myocardial fibrosis, and cardiac dysfunction might be attributed to the upregulation of CIB1 in MI mice. Downregulation of CIB1 alleviated myocardial fibrosis and cardiac
dysfunction by decreasing the expression of α-SMA, vimentin, Collagen I, and Collagen III via inhibiting the PI3K/Akt pathway. Therefore, CIB1 may be a potential target for MI treatment.
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Affiliation(s)
- Guangquan Hu
- Department of Geriatric Cardiology, The First Affiliated Hospital of Anhui Medical University.,Department of Internal Medicine-Cardiovascular, The Second Hospital of Anhui Medical University
| | - Xiaojie Ding
- Department of Endocrinology, Anhui No.2 Provincial People's Hospital
| | - Feng Gao
- Department of Internal Medicine-Cardiovascular, The Second Hospital of Anhui Medical University
| | - Jiehua Li
- Department of Geriatric Cardiology, The First Affiliated Hospital of Anhui Medical University
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Puerarin protects cardiomyocytes from ischemia-reperfusion injury by upregulating LncRNA ANRIL and inhibiting autophagy. Cell Tissue Res 2021; 385:739-751. [PMID: 33963896 DOI: 10.1007/s00441-021-03463-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 04/13/2021] [Indexed: 10/21/2022]
Abstract
This study analyzed the roles of puerarin and LncRNA ANRIL in myocardial ischemia-reperfusion injury. Hypoxia/reperfusion (H/R) model was established with H9C2 cells. Effects of puerarin of gradient concentrations on cardiomyocytes at different time points of hypoxia and reoxygenation were detected by quantitative real-time polymerase chain reaction (qRT-PCR), cell counting kit-8 (CCK-8), and microscope observation. Effects of puerarin on cardiomyocyte viability, ANRIL expression, contents of lactate dehydrogenase (LDH) and malondialdehyde (MDA), apoptosis, and expressions of autophagy-related genes after H/R injury were determined by CCK-8, quantitative real-time polymerase chain reaction (qRT-PCR), ELISA, flow cytometry, and Western blot, respectively. After cell transfection, the effects of overexpressed and knockdown of ANRIL on cardiomyocytes and H/R-injured cardiomyocytes were examined by rescue experiments. The ischemia-reperfusion (I/R)-injured rat model was established to examine the protective effect of puerarin in vivo. Prolonged hypoxia downregulated ANRIL expression in cardiomyocytes and reduced cardiomyocyte viability. Prolonged reoxygenation increased apoptosis. Both cardiomyocyte viability and ANRIL expression showed a dose-dependent relationship with puerarin. Puerarin reversed the effects of H/R injury on cardiomyocyte viability, ANRIL expression, contents of LDH and MDA, apoptosis, and expressions of autophagy-related genes. Overexpression and knockdown of ANRIL regulated the functions of cardiomyocytes and the expressions of autophagy-related genes. Puerarin reversed the effects of knockdown of ANRIL on H/R-injured cells. The results of In vivo experiments confirmed that puerarin protected myocardial tissues by up-regulating ANRIL and inhibiting autophagy.
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Zhang Q, Wu X, Yang J. miR-194-5p protects against myocardial ischemia/reperfusion injury via MAPK1/PTEN/AKT pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:654. [PMID: 33987352 PMCID: PMC8106072 DOI: 10.21037/atm-21-807] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background MicroRNA (miRNA), which participates in various physiological and pathological processes, is a highly conserved small RNA sequence. This study aimed to investigate the role of miR-194-5p in hypoxia/reoxygenation (H/R)-induced cardiomyocyte apoptosis and myocardial ischemia/reperfusion (I/R) injury. Methods We set up an H/R H9c2 cell model in vitro and an I/R mouse model in vivo. Then, cell vitality, apoptosis, and histopathological evaluation were conducted. Reactive oxygen species (ROS) generation and the activity of superoxide dismutase (SOD) and malondialdehyde (MDA) were examined by 2’,7’-Dichlorodihydrofluorescein diacetate (H2DCFDA), and enzyme-linked immunosorbent assay (ELISA), respectively. The level of creatine kinase isoenzyme (CK-MB), cardiac troponin I (cTnI), myoglobin (Mb) is examined by ELISA. The expression of Caspase-3, cleaved-Caspase-3, Bax, Bcl-2, phosphatase and tensin homolog deleted on chromosome ten (PTEN), and protein kinase B (AKT) was analyzed by western blot. Results Data showed the expression of miR-194-5p was decreased in H/R-induced H9c2 cells and I/R-induced mouse. Conversely, overexpression of miR-194-5p could improve cardiomyocyte damage in ischemic models in vivo and in vitro. Furthermore, mitogen-activated protein kinase 1 (MAPK1) was found as a direct target of miR-194-5p, which negatively regulated the expression of MAPK1. The up-regulation of MAPK1 inhibited the myocardial protection previously observed by miR-194-5p. Conclusions Our study shows overexpression of miR-194-5p protects against H/R injury in vitro and cardiac I/R injury in vivo, which involves the inhibition of cardiac apoptosis and oxidative stress by targeting MAPK1 expression via PTEN/AKT pathway. These findings supply novel insights into potential therapeutic targets for cardiovascular diseases.
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Affiliation(s)
- Qiufeng Zhang
- Emergency Department, First People's Hospital of Shangqiu City, Shangqiu, China
| | - Xiaotian Wu
- Emergency Department, First People's Hospital of Shangqiu City, Shangqiu, China
| | - Jie Yang
- Department of Cardiovascular Medicine, Xiaoshan Hospital, Xiaoshan, China
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15
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Zhang X, Shao C, Cheng S, Zhu Y, Liang B, Gu N. Effect of Guanxin V in animal model of acute myocardial infarction. BMC Complement Med Ther 2021; 21:72. [PMID: 33618704 PMCID: PMC7898759 DOI: 10.1186/s12906-021-03211-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 01/10/2021] [Indexed: 12/18/2022] Open
Abstract
Background Acute myocardial infarction (AMI) is the most serious and lethal manifestation of coronary heart disease worldwide, presenting extremely high disability and mortality. Our previous studies have shown that Guanxin V (GXV) could significantly improve the cardiac function and the blood flow dynamics, and reduce serum levels of inflammatory factors in AMI rats, thus triggering ventricular remodeling (VR) at post-AMI. Methods An in vivo AMI model was established in Syrian hamsters by performing the ligation of the left anterior descending coronary artery. Syrian hamsters were randomly divided into four groups, namely Sham operation group (n = 12), AMI group (n = 12), GXV group (GXV 6 g/Kg/d, n = 12), and Tranilast group (Tra 105 mg/Kg/d, n = 12). Drug intervention was conducted for consecutive 8 weeks. Relative biological indicators were measured in the 4th and 8th week, respectively. Results Cardiac functions were improved, and the infarcted size and heart weight index were limited in Syrian hamsters of GXV and Tra groups compared with those in AMI group. Furthermore, GXV was able to decrease the number of mast cells and chymase level in Syrian hamsters with AMI. Administration of GXV remarkably inactivated the renin-angiotension-aldosterone system, and alleviated myocardial fibrosis and cardiomyocyte apoptosis, thus slowing down VR at post-AMI. Conclusion GXV slows down the process of VR at post-AMI by reducing chymase level and mast cells number, as well as inactivating the reninangiotension-aldosterone system.. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-021-03211-7.
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Affiliation(s)
- Xiaoxiao Zhang
- Nanjing University of Chinese Medicine, Nanjing, China.,Department of Cardiology, Nanjing Hospital of Chinese Medicine, Affiliated to Nanjing University of Chinese Medicine, Daming Road 157#, Nanjing, 210000, Jiangsu, People's Republic of China
| | | | - Songyi Cheng
- Department of Cardiology, Nanjing Hospital of Chinese Medicine, Affiliated to Nanjing University of Chinese Medicine, Daming Road 157#, Nanjing, 210000, Jiangsu, People's Republic of China
| | - Yao Zhu
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Bo Liang
- Nanjing University of Chinese Medicine, Nanjing, China
| | - Ning Gu
- Department of Cardiology, Nanjing Hospital of Chinese Medicine, Affiliated to Nanjing University of Chinese Medicine, Daming Road 157#, Nanjing, 210000, Jiangsu, People's Republic of China.
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Mo F, Luo Y, Yan Y, Li J, Lai S, Wu W. Are activated B cells involved in the process of myocardial fibrosis after acute myocardial infarction? An in vivo experiment. BMC Cardiovasc Disord 2021; 21:5. [PMID: 33407160 PMCID: PMC7789158 DOI: 10.1186/s12872-020-01775-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/08/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Inflammatory cells infiltrate into the ischemic and hypoxic myocardial tissue after myocardial infarction. B cells gather at the site of myocardial injury and secrete cytokines to regulate immune inflammation and fiber repair processes. METHODS The animal experiment used ligation of the left anterior descending (LAD) artery of C57BL/6 mice to establish a mouse acute myocardial infarction (AMI) model to observe changes in activated B cells and cytokines at different time points. Twelve-week-old C57BL/6 male mice were randomly divided into the Sham group (24 mice) (thread under the LAD artery without ligation) and the AMI group (64 mice). In addition, C57BL/6 B-cell knockout (BKO) mice and C57BL/6 wild-type (WT) mice were used to establish AMI models to observe the expression levels of cardiomyocyte cytokines, such as TNF-α IL-1β, IL-6, TGF-β1, COL1-A1, COL3-AIII, TIMP, and MMP9. Moreover, pathological and collagen changes in the myocardium were analysed. One-way ANOVA and LSD method was used for comparisons of multiple and pairwise groups respectively. P < 0.05 indicated significant differences. RESULTS An AMI model of C57BL/6 mice was established successfully. The ratio of activated B cells and the expression of TNF-α, IL-1β, IL-6, TGF-β1, and B cell activating factor (BAFF) in the 5-day subgroup were the highest in the myocardium, spleen and peripheral blood with the most obvious myocardial inflammatory cell infiltration. The cytokines mRNA expression levels in the 5-day subgroup of the BKO group were decreased compared with those in the WT group (P < 0.05). Among the 2-week subgroups of the Sham, WT and BKO groups, the the LVEDd and LVESd of the BKO group were lower than those of the WT group (P < 0.05), and the left ventricular ejection fraction was higher than that of the WT group (P < 0.05). CONCLUSION Activated B cells participate in the sustained state of myocardial inflammation and immune system activation after AMI, and may affect the metabolism of myocardial collagen after AMI by secreting cytokines. Moreover, B cells promote the expression of myocardial collagen Type I and Type III and damage the left ventricular ejection function.
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Affiliation(s)
- Fanrui Mo
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, China
- Department of Cardiology, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, China
| | - Ying Luo
- Guangxi Medical University, Nanning, China
| | - Yuluan Yan
- Department of Cardiology, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, China
| | - Juan Li
- Department of Cardiology, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, China
| | - Shayi Lai
- Department of Cardiology, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou, China
| | - Weifeng Wu
- Department of Cardiology, The First Affiliated Hospital of Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, China.
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Chen L, Song M, Zhang L, Li C, Fang Z, Coffie JW, Zhang L, Ma L, Fang L, Wang Q, Yang W, Li F, Gao X, Wang H. The protective effects of different compatibility proportions of the couplet medicines for Astragali Radix and Angelica sinensis Radix on myocardial infarction injury. PHARMACEUTICAL BIOLOGY 2020; 58:165-175. [PMID: 32608342 PMCID: PMC8641686 DOI: 10.1080/13880209.2020.1725581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Context: Astragali Radix (AR) and Angelica sinensis Radix (ASR) combinations are used to treat cardiovascular disorders.Objectives: This study investigates the protective effects of different compatibility proportions of AR and ASR on cardiac dysfunction in a C57BL/6 mouse model of myocardial infarction (MI).Materials and methods: MI mice were induced by ligation of the left coronary artery and divided into six groups: sham, vehicle, 10 mg/kg/d simvastatin and combinations of AR and ASR at different ratios, including 1:1 (AR 2.5 g/kg + ASR 2.5 g/kg), 3:1 (AR 3.75 g/kg + ASR 1.25 g/kg) and 5:1 (AR 4.17 g/kg + ASR 0.83 g/kg). Both AR-ASR combinations and simvastatin were dissolved in saline solution and given daily by gavage. The left ventricle function, infarct size, heart tissue injury, apoptosis of cardiomyocytes, leukocyte infiltrates, capillary density and expression of cleaved caspase-3, cleaved caspase-9, Bcl-2, Bax, Bad, IL-1β, IL-6, VEGF, p-Akt and p-eNOS were analysed.Results: Different combinations of AR and ASR improve cardiac function and reduce infarct size (61.15% vs. 39.3%, 42.65% and 45.5%) and tissue injury through different mechanisms. When AR was combined with ASR at ratio of 1:1, the inflammation and cardiomyocyte apoptosis were suppressed (p < 0.05, p < 0.01). The combination ratio of 3:1 exerted effect in promoting angiogensis (p < 0.05). In the combination of AR and ASR at 5:1 ratio, angiogenesis was significantly improved (p < 0.01) and the apoptosis was inhibited (p < 0.05).Conclusions: Our results reflect the regulation of multiple targets and links in herb pairs and provide an important basis for the use of AR and ASR combinations in the treatment of MI.
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Affiliation(s)
- Lu Chen
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Min Song
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lusha Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Chunxiao Li
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhirui Fang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Joel Wake Coffie
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Liyuan Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lulu Ma
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Leyu Fang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Qianyi Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wenjie Yang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Fanggang Li
- Shandong Danhong Pharmaceutical Co., Ltd., Heze, China
| | - Xiumei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hong Wang
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- CONTACT Hong Wang , School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Rd., West Area, Tuanbo New Town, Jinghai Dist., Tianjin301617, PR China
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Alonzo M, Delgado M, Cleetus C, Kumar SA, Thakur V, Chattopadhyay M, Joddar B. Methods for histological characterization of cryo-induced myocardial infarction in a rat model. Acta Histochem 2020; 122:151624. [PMID: 33066844 DOI: 10.1016/j.acthis.2020.151624] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 12/13/2022]
Abstract
Ligation of the left anterior descending (LAD) coronary artery has been commonly employed to induce myocardial infarction (MI) in animals; however, it is known to pose setbacks in the form of cardiac arrhythmias and unpredictable areas of necrotic damage. Cryo-infarction is an alternate method that has been adopted to create a reproducible model of a myocardial injury. In this study, Sprague-Dawley rats were subjected to thoracotomy followed by cryo-induced infarction of the heart, while the control-sham group was only subjected to thoracotomy following which the heart was collected from all animals. Tissue sections were stained with hematoxylin and eosin and analyzed to determine cardiac muscle density, fiber length, and fiber curvature. Observations revealed reduced muscle density, cardiac fiber length, and distorted fibers in infarcted tissue sections. Gomori's Trichrome staining was performed on tissue sections to study the effects of post MI on collagen, which showed enhanced intensity of collagen staining indicating fibrosis for the experimental models as compared to the sham models, an established consequence to myocardial injury. Immunohistochemical staining of the tissue sections with DAPI and connexin-43 (Cx-43) revealed that there was reduced DAPI staining and a less pronounced expression of Cx-43 in the experimental samples as compared to the sham samples. Results implied significant cell damage resulting from the cryo-infarction, subsequently disrupting and disaggregating the functional Cx-43 junction in cardiac myocytes, which is essential for normal and healthy cardiac physiology and function. This quantitative histological study of cryo-induced MI in a rat model can aid others attempting to optimize MI models in rats via cryo-injury, to study cardiac disease progression, and to aid in the construction of engineered cardiac tissues.
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Li C, Chen L, Song M, Fang Z, Zhang L, Coffie JW, Zhang L, Ma L, Wang Q, Yang W, Fang L, Wang S, Gao X, Wang H. Ferulic acid protects cardiomyocytes from TNF-α/cycloheximide-induced apoptosis by regulating autophagy. Arch Pharm Res 2020; 43:863-874. [PMID: 32720163 DOI: 10.1007/s12272-020-01252-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 07/19/2020] [Indexed: 12/15/2022]
Abstract
Acute myocardial infarction (AMI) results in irreversible cardiac cell damage or death because of decreased blood flow to the heart. Apoptosis plays an important role in the process of tissue damage after myocardial infarction (MI), which has pathological and therapeutic implications. Ferulic acid (FA) is a phenolic acid endowed with strong antioxidative and cytoprotective activities. The present study aimed to investigate whether FA protects cardiomyocytes from apoptosis by regulating autophagy, which is a cellular self-digestion process, and one of the first lines of defense against oxidative stress. Apoptosis was induced by TNF-α (10 ng/mL) and cycloheximide (CHX, 5 μg/mL) in rat H9c2 cardiomyocytes. FA-inhibited TNF-α/CHX-induced apoptosis was determined by the quantification of TUNEL-positive cells, and the effect was associated with decreased ROS production and inhibited caspase3 activation. FA treatment enhanced autophagy and increased autophagy-associated protein expression, leading to an inhibition of mTOR signaling. When co-treated with 3-methyladenine (3-MA), an autophagy inhibitor, the anti-apoptotic effect of FA was attenuated. In an in vivo mouse MI model, FA treatment decreased the apoptotic cell number, reduced infarct size, and improved cardiac performance, as determined by histological and echocardiographic assessments. Taken collectively, these results suggest that FA could protect cardiomyocytes from apoptosis by enhancing autophagy.
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Affiliation(s)
- Chunxiao Li
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Lu Chen
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Min Song
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Zhirui Fang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Lusha Zhang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Joel Wake Coffie
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Liyuan Zhang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Lulu Ma
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Qianyi Wang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Wenjie Yang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Leyu Fang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Shaoxia Wang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Rd., West Area, Tuanbo New Town, Jinghai Dist., Tianjin, 301617, China
| | - Xiumei Gao
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Hong Wang
- Tianji State Key Laboratory of Modern Chinese Medicine, Tianjin, 301617, China.
- Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
- Tianjin Key Laboratory of Chinese Medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Rd., West Area, Tuanbo New Town, Jinghai Dist., Tianjin, 301617, China.
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Protease-activated receptor 2 deficiency in hematopoietic lineage protects against myocardial infarction through attenuated inflammatory response and fibrosis. Biochem Biophys Res Commun 2020; 526:253-260. [PMID: 32204916 DOI: 10.1016/j.bbrc.2020.03.077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 03/12/2020] [Indexed: 11/20/2022]
Abstract
Ischaemic heart disease is one of the leading causes of death. Protease-activated receptor 2 (PAR2) is widely expressed within the cardiovascular system and is known to mediate inflammatory processes in various immunocytes, such as macrophages, mastocytes and neutrophils. Here, we investigated whether activating macrophage PAR2 modulates cardiac remodelling in a murine model of myocardial infarction. Myocardial infarction was produced by the permanent ligation of the left anterior descending coronary artery (LAD) in C57BL/6J background wild-type (WT) mice transplanted with bone marrow from WT or PAR2 knockout (PAR2 KO) mice. Hematopoietic deficiency of PAR2 had improvement of left ventricular systolic dysfunction and dilatation and decreased fibrosis deposition in remote zone at 1 week after LAD ligation. Inactivation of PAR2 also led to less recruitment of macrophages in myocardium, which was accompanied by decreased expression of pro-inflammatory cytokines. Furthermore, cultured cardiac fibroblasts (CFs) were activated and showed a fibrotic phenotype after being co-cultured in medium containing PAR2-activating macrophage, which enhances interferon-beta (INF-β) expression. The beneficial effects of macrophages with INF-β neutralisation or PAR2-deletion ameliorates the JAK/STAT3 pathway in CFs, which might be attributed to CF activation. These data suggest that macrophage-derived IFN-β plays a crucial role in adverse cardiac remodelling after myocardial infarction, at least in part, through a PAR2-dependent mechanism.
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21
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Fan Y, Lu M, Yu XA, He M, Zhang Y, Ma XN, Kou J, Yu BY, Tian J. Targeted Myocardial Hypoxia Imaging Using a Nitroreductase-Activatable Near-Infrared Fluorescent Nanoprobe. Anal Chem 2019; 91:6585-6592. [PMID: 30994329 DOI: 10.1021/acs.analchem.9b00298] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Development of a highly selective and sensitive imaging probe for accurate detection of myocardial hypoxia will be helpful to estimate the degree of ischemia and subsequently guide personalized treatment. However, an efficient optical approach for hypoxia monitoring in myocardial ischemia is still lacking. In this work, a cardiomyocyte-specific and nitroreductase-activatable near-infrared nanoprobe has been developed for selective and sensitive imaging of myocardial hypoxia. The nanoprobe is a liposome-based nanoarchitecture which is functionalized with a peptide (GGGGDRVYIHPF) for targeting heart cells and encapsulating a nitrobenzene-substituted BODIPY for nitroreductase imaging. The nanoprobe can specifically recognize and bind to angiotensin II type 1 receptor that is overexpressed on the ischemic heart cells by the peptide and is subsequently uptaken into heart cells, in which the probe is released and activated by hypoxia-related nitroreductase to produce fluorescence emission at 713 nm. The in vitro response of the nanoprobe toward nitroreductase resulted in 55-fold fluorescence enhancement with the limit of detection as low as 7.08 ng/mL. Confocal fluorescence imaging confirmed the successful uptake of nanoprobe by hypoxic heart cells and intracellular detection of nitroreductase. More significantly, in vivo imaging of hypoxia in a murine model of myocardial ischemia was achieved by the nanoprobe with high sensitivity and good biocompatibility. Therefore, this work presents a new tool for targeted detection of myocardial hypoxia and will promote the investigation of the hypoxia-related physiological and pathological process of ischemic heart disease.
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Affiliation(s)
- Yunshi Fan
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Mi Lu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Xie-An Yu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Miaoling He
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Yu Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Xiao-Nan Ma
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Junping Kou
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Bo-Yang Yu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
| | - Jiangwei Tian
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Research Center for Traceability and Standardization of TCMs, Cellular and Molecular Biology Center, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing 211198 , P.R. China
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