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覃 秋, 吕 祥, 何 梓, 陈 礼, 路 凤, 李 于, 黄 宇, 莫 琪, 徐 华, 吕 菲. [mRNA Expression Profile Changes in Angiotensin-Ⅱ-Induced Atrial Myocardial Fibrosis in Rats]. Sichuan Da Xue Xue Bao Yi Xue Ban 2023; 54:959-964. [PMID: 37866953 PMCID: PMC10579065 DOI: 10.12182/20230960211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Indexed: 10/24/2023]
Abstract
Objective To study the differences between the mRNA expression profile in angiotensin Ⅱ (Ang Ⅱ)-induced fibrotic cardiomyocytes and that of normal cardiomyocytes and the relevant signaling pathways. Methods Six 8-week-old male Sprague-Dawley (SD) rats were randomly assigned to a control group and an Ang Ⅱ group, with 3 rats in each group. Rats in the control group were injected via caudal vein with 0.9% normal saline at 2 mg/kg per day, while rats in the Ang Ⅱ group were injected with Ang Ⅱ via caudal vein at 2 mg/kg per day. The medications were continuously administered in the two groups for 14 days. The degree of myocardial fibrosis was determined by Masson's Trichrome staining and the content of collagen Ⅰ was determined by immunohistochemistry. High throughput sequencing was performed to measure the mRNA expression of rat cardiomyocytes in the two groups and to screen for differentially-expressed mRNAs. The differentially-expressed mRNAs were analyzed by Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. Results Compared with those of the control group, the degree of myocardial fibrosis and the content of collagen Ⅰ in Ang Ⅱ group were significantly higher ( P<0.05). Through sequencing, 313 differentially-expressed mRNAs were identified, with 201 being up-regulated and 112 being down-regulated. Go and KEGG analyses showed that these differentially-expressed mRNA were involved in a variety of biological regulatory functions and pathways of myocardial fibrosis. Conclusion Ang Ⅱ can cause myocardial fibrosis in rats. There are significant differences in mRNA expression between fibrotic cardiomyocytes and normal cardiomyocytes. The differentially expressed mRNAs may play an important role in biological processes, including immune response, cell remodeling, and extracellular matrix deposition.
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Affiliation(s)
- 秋语 覃
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 祥威 吕
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 梓峰 何
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 礼琴 陈
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 凤霞 路
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 于庭 李
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 宇莉 黄
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 琪 莫
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 华欣 徐
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
| | - 菲 吕
- 桂林医学院附属医院 综合科医疗保健病区 (桂林 541001)Department of Medical Care Ward, Affiliated Hospital of Guilin Medical University, Guilin 541001, China
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Sun J, Wang R, Chao T, Peng J, Wang C, Chen K. Ginsenoside Re inhibits myocardial fibrosis by regulating miR-489/myd88/NF-κB pathway. J Ginseng Res 2023; 47:218-27. [PMID: 36926602 DOI: 10.1016/j.jgr.2021.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/23/2021] [Accepted: 11/29/2021] [Indexed: 12/17/2022] Open
Abstract
Background Myocardial fibrosis (MF) is an advanced pathological manifestation of many cardiovascular diseases, which can induce heart failure and malignant arrhythmias. However, the current treatment of MF lacks specific drugs. Ginsenoside Re has anti-MF effect in rat, but its mechanism is still not clear. Therefore, we investigated the anti-MF effect of ginsenoside Re by constructing mouse acute myocardial infarction (AMI) model and AngⅡ induced cardiac fibroblasts (CFs) model. Methods The anti-MF effect of miR-489 was investigated by transfection of miR-489 mimic and inhibitor in CFs. Effect of ginsenoside Re on MF and its related mechanisms were investigated by ultrasonographic, ELISA, histopathologic staining, transwell test, immunofluorescence, Western blot and qPCR in the mouse model of AMI and the AngⅡ-induced CFs model. Results MiR-489 decreased the expression of α-SMA, collagenⅠ, collagen Ⅲ and myd88, and inhibited the phosphorylation of NF-κB p65 in normal CFs and CFs treated with AngⅡ. Ginsenoside Re could improve cardiac function, inhibit collagen deposition and CFs migration, promote the transcription of miR-489, and reduce the expression of myd88 and the phosphorylation of NF-κB p65. Conclusion MiR-489 can effectively inhibit the pathological process of MF, and the mechanism is at least partly related to the regulation of myd88/NF-κB pathway. Ginsenoside Re can ameliorate AMI and AngⅡ induced MF, and the mechanism is at least partially related to the regulation of miR-489/myd88/NF-κB signaling pathway. Therefore, miR-489 may be a potential target of anti-MF and ginsenoside Re may be an effective drug for the treatment of MF.
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Liu Q, Chen L, Liang X, Cao Y, Zhu X, Wang S, Li J, Gao J, Xiao J. Exercise attenuates angiotensinⅡ-induced muscle atrophy by targeting PPARγ/miR-29b. J Sport Health Sci 2022; 11:696-707. [PMID: 34116237 PMCID: PMC9729927 DOI: 10.1016/j.jshs.2021.06.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/11/2021] [Accepted: 05/07/2021] [Indexed: 05/10/2023]
Abstract
BACKGROUND Exercise is beneficial for muscle atrophy. Peroxisome proliferator-activated receptor gamma (PPARγ) and microRNA-29b (miR-29b) have been reported to be responsible for angiotensinⅡ (AngⅡ)-induced muscle atrophy. However, it is unclear whether exercise can protect AngⅡ-induced muscle atrophy by targeting PPARγ/miR-29b. METHODS Skeletal muscle atrophy in both the control group and the run group was established by AngⅡ infusion; after 1 week of exercise training, the mice were sacrificed, and muscle weight was determined. Myofiber size was measured by hematoxylin-eosin and wheat-germ agglutinin staining. Apoptosis was evaluated by terminal deoxynucleotidyl transferase dUTP nick end labeling staining. The expression level of muscle atrogenes, including F-box only protein 32 (FBXO32, also called Atrogin-1) and muscle-specific RING-finger 1 (MuRF-1), the phosphorylation level of protein kinase B (PKB, also called AKT)/forkhead box O3A (FOXO3A)/mammalian target of rapamycin (mTOR) pathway proteins, the expression level of PPARγ and apoptosis-related proteins, including B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X (Bax), cysteine-aspartic acid protease 3 (caspase-3), and cleaved-caspase-3, were determined by western blot. The expression level of miR-29b was checked by reverse-transcription quantitative polymerase chain reaction. A PPARγ inhibitor (T0070907) or adeno-associated virus serotype-8 (AAV8)-mediated miR-29b overexpression was used to demonstrate whether PPARγ activation or miR-29b inhibition mediates the beneficial effects of exercise in AngⅡ-induced muscle atrophy. RESULTS Exercise can significantly attenuate AngⅡ-induced muscle atrophy, which is demonstrated by increased skeletal muscle weight, cross-sectional area of myofiber, and activation of AKT/mTOR signaling and by decreased atrogenes expressions and apoptosis. In AngⅡ-induced muscle atrophy mice models, PPARγ was elevated whereas miR-29b was decreased by exercise. The protective effects of exercise in AngⅡ-induced muscle atrophy were inhibited by a PPARγ inhibitor (T0070907) or adeno-associated virus serotype-8 (AAV8)-mediated miR-29b overexpression. CONCLUSION Exercise attenuates AngⅡ-induced muscle atrophy by activation of PPARγ and suppression of miR-29b.
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Affiliation(s)
- Qi Liu
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Liyang Chen
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Xuchun Liang
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Yuqing Cao
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Xinyue Zhu
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Siqi Wang
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Jin Li
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China
| | - Juan Gao
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China.
| | - Junjie Xiao
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai 200444, China; Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai 200444, China.
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Cui YK, Hong YX, Wu WY, Han WM, Wu Y, Wu C, Li GR, Wang Y. Acacetin ameliorates cardiac hypertrophy by activating Sirt1/AMPK/PGC-1α pathway. Eur J Pharmacol 2022; 920:174858. [PMID: 35219729 DOI: 10.1016/j.ejphar.2022.174858] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 02/15/2022] [Accepted: 02/22/2022] [Indexed: 12/20/2022]
Abstract
Cardiac hypertrophy is a major risk factor for developing heart failure. This study investigates the effects of the natural flavone acacetin on myocardial hypertrophy in cellular level and whole animals. In cardiomyocytes from neonatal rat with hypertrophy induced by angiotensin II (Ang II), acacetin at 0.3, 1, and 3 μM reduced the increased myocyte surface area, brain natriuretic peptide (BNP), and ROS production by upregulating anti-oxidative molecules (i.e. Nrf2, SOD1, SOD2, HO-1), anti-apoptotic protein Bcl-2, and downregulating the pro-apoptotic protein Bax and the inflammatory cytokine IL-6 in a concentration-dependent manner. In addition, acacetin rescued Ang II-induced impairment of PGC-1α, PPARα and pAMPK. These beneficial effects of acacetin were mediated by activation of Sirt1, which was confirmed in cardiac hypertrophy induced by abdominal aorta constriction (AAC) in SD rats. Acacetin prodrug (10 mg/kg, s.c., b.i.d.) treatment reduced the elevated artery blood pressure, improved the increased heart size and thickness of left ventricular wall and the ventricular fibrosis associated with inhibiting myocardial fibrosis and BNP, and reversed the impaired protective signal molecules including PGC-1α, Nrf2, PPARα, pAMPK and Sirt1 of left ventricular tissue. Our results demonstrate the novel pharmacological effect that acacetin ameliorates cardiac hypertrophy via Sirt1-mediated activation of AMPK/PGC-1α signal molecules followed by reducing oxidation, inflammation and apoptosis.
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Affiliation(s)
- Yu-Kai Cui
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China
| | - Yi-Xiang Hong
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China
| | - Wei-Yin Wu
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China
| | - Wei-Min Han
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China
| | - Yao Wu
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China
| | - Chan Wu
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China
| | - Gui-Rong Li
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China; Nanjing Amazigh Pharma Limited, Nanjing, Jiangsu, 210032, China.
| | - Yan Wang
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, 361009, China.
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Xie L, Wang T, Lin S, Lu Z, Wang Y, Shen Z, Cheng Y, Shen A, Peng J, Chu J. Uncaria Rhynchophylla attenuates angiotensin Ⅱ-induced myocardial fibrosis via suppression of the RhoA/ROCK1 pathway. Biomed Pharmacother 2022; 146:112607. [PMID: 35062072 DOI: 10.1016/j.biopha.2021.112607] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/26/2021] [Accepted: 12/26/2021] [Indexed: 11/15/2022] Open
Abstract
Uncaria rhynchophylla (UR), a traditional Chinese medicine, has been proven effective in treating hypertensive patients in China. However, the mechanisms of action of UR in reducing hypertension and myocardial fibrosis are still unclear. The purpose of this study was to explore the role of UR in an angiotensin Ⅱ (Ang Ⅱ) induced mouse model. The mice were randomly divided into 5 groups and infused with Ang Ⅱ (500 ng/kg/min) or saline, then administered UR (0.78, 1.56 or 3.12 g/kg/d) or saline for 4 weeks. UR treatment significantly attenuated the elevation of blood pressure caused by Ang Ⅱ. It enhanced myocardial function and attenuated the increase in the heart weight index and the pathological changes in the Ang Ⅱ-induced hypertensive mice. Furthermore, UR treatment inhibited cardiac fibrosis and significantly down-regulated collagen I, collagen Ⅲ, and α-SMA protein expression in cardiac tissues. UR also attenuated the expression of RhoA, ROCK1, CTGF, and TGF-β1. In cultured cardiac fibroblasts stimulated with Ang Ⅱ, UR significantly down-regulated the expression of Collagen I, Collagen III, RhoA, ROCK1, and α-SMA. In summary, UR can significantly attenuate Ang Ⅱ-induced hypertension and cardiac fibrosis, partly via suppression of the RhoA/ROCK1 signaling pathway.
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Affiliation(s)
- Lingling Xie
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Tianyi Wang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Shan Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Zhuqing Lu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Yilian Wang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Zhiqing Shen
- The People's Hospital of Fujian Traditional Medical University, No. 602, 817 Middle Road, Taijiang District, Fuzhou, Fujian 350004, China.
| | - Ying Cheng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Aling Shen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
| | - Jianfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, China.
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Yu J, Li W, Zhao L, Qiao Y, Yu J, Huang Q, Yang Y, Xiao X, Guo D. Quyu Shengxin capsule (QSC) inhibits Ang-II-induced abnormal proliferation of VSMCs by down-regulating TGF-β, VEGF, mTOR and JAK-STAT pathways. J Ethnopharmacol 2021; 275:114112. [PMID: 33905820 DOI: 10.1016/j.jep.2021.114112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 03/25/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Quyu Shengxin capsule (QSC) is an herbal compound commonly used to treat blood stasis syndrome in China, and blood stasis syndrome is considered to be the root of cardiovascular diseases (CVD) in traditional Chinese medicine. However, the potential molecular mechanism of QSC is still unknown. AIM OF STUDY To study the therapeutic effect of QSC on the abnormal proliferation of VSMCs induced by Ang-II, and to explore its possible mechanism of action. MATERIALS AND METHODS Qualitative analysis and quality control of QSC through UPLC-MS/MS and UPLC. The rat thoracic aorta vascular smooth muscle cells (VSMCs) were cultured in vitro, and then stimulated with Angiotensin Ⅱ (Ang-II) (10-7 mol/L) for 24 h to establish a cardiovascular cell model. The cells were then treated with different concentrations of QSC drug-containing serum or normal goat serum. MTT assay was used to detect the viability of VSMCs and abnormal cell proliferation. In order to analyze the possible signal transduction pathways, the content of various factors in the supernatant of VSMCs was screened and determined by means of the Luminex liquid suspension chip detection platform, and the phosphoprotein profile in VSMCs was screened by Phospho Explorer antibody array. RESULTS Compared with the model group, serum cell viability and inflammatory factor levels with QSC were significantly decreased (P < 0.001). In addition, the expression levels of TGF-β, VEGF, mTOR and JAK-STAT in the QSC-containing serum treatment group were significantly lower than those in the model group. QSC may regulate the pathological process of CVD by reducing the levels of inflammatory mediators and cytokines, and protecting VSMCs from the abnormal proliferation induced by Ang-II. CONCLUSION QSC inhibits Ang-II-induced abnormal proliferation of VSMCs, which is related to the down-regulation of TGF-β, VEGF, mTOR and JAK-STAT pathways.
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Affiliation(s)
- Jinjin Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Weifeng Li
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China.
| | - Lintao Zhao
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, PR China
| | - Yuan Qiao
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, PR China
| | - Jiabao Yu
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Qiuxia Huang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Yajie Yang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Xin Xiao
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, PR China
| | - Dong Guo
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, PR China.
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Yu N, Shen A, Chu J, Huang Y, Zhang L, Lin S, Cai Q, Sankararaman S, Sferra TJ, Chen Y, Peng J. Qingda granule inhibits angiotensin Ⅱ induced VSMCs proliferation through MAPK and PI3K/AKT pathways. J Ethnopharmacol 2020; 258:112767. [PMID: 32199989 DOI: 10.1016/j.jep.2020.112767] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 03/01/2020] [Accepted: 03/12/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The abnormal increase in vascular smooth muscle cell (VSMC) proliferation is widely accepted as the pivotal process in the vascular remodeling of hypertension. Qingda granule (QDG) is simplified from Qingxuan Jiangya Decoction (QXJYD) which has been in usage for a long time as a traditional Chinese medicine formula to treat hypertension based on the theory of traditional Chinese medicine. However, its underlying molecular mechanisms of action remain largely unknown. AIM OF STUDY To investigate the therapeutic efficacy of QDG in the attenuation of elevation of blood pressure and proliferation of VSMCs in vivo and in vitro and explore its possible mechanism of action. MATERIALS AND METHODS In vivo, we established an angiotensin Ⅱ (Ang Ⅱ)-mediated hypertension model in C57BL/6 mice and orally administered 1.145 g/kg/day of QDG. The systolic and diastolic blood pressures of all mice were measured at the end of the treatment by using the tail-cuff plethysmograph method and CODA™ noninvasive blood pressure system. VSMC proliferation within the aorta was determined by immunohistochemistry. In vitro, primary rat VSMCs were cultured to further verify the effects of QDG on Ang Ⅱ induced VSMC proliferation. Cell proliferation was investigated using cell counting and MTT assays. The protein expression was determined by western blotting. RESULTS We found that oral administration of QDG significantly attenuated the elevation of blood pressure and proliferation of VSMCs in Ang Ⅱ-induced hypertensive mice. Moreover, QDG remarkably inhibited Ang Ⅱ-induced primary rat VSMCs proliferation and decreased mitogen-activated protein kinase (MAPK) and PI3K/AKT activity by attenuating the expression of phospho-extracellular signaling-regulated kinase 1/2, phospho-p38, phospho-c-Jun N-terminal kinase and phospho-protein kinase B. CONCLUSION Collectively, our findings suggest that QDG attenuates Ang Ⅱ-induced elevation of blood pressure and proliferation of VSMCs through a decrease in the activation of MAPK and PI3K/AKT pathways. Based on this study, we postulate this could be one of the mechanisms whereby QDG effectively controls hypertension.
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Affiliation(s)
- Na Yu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Aling Shen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Jianfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Yue Huang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Ling Zhang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Shan Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Qiaoyan Cai
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China
| | - Senthilkumar Sankararaman
- Department of Pediatrics, Case Western Reserve University School of Medicine, UH Rainbow Babies and Children's Hospital, Cleveland, OH, 44106, USA
| | - Thomas J Sferra
- Department of Pediatrics, Case Western Reserve University School of Medicine, UH Rainbow Babies and Children's Hospital, Cleveland, OH, 44106, USA
| | - Youqin Chen
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Department of Pediatrics, Case Western Reserve University School of Medicine, UH Rainbow Babies and Children's Hospital, Cleveland, OH, 44106, USA.
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian, 350122, China.
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Feng Y, Zhang J, Li S, Liu Y, Zhang Y, Guo Y, Yang M. Changes in nitric oxide, angiotensin Ⅱ angiopoietin-like protein 4 mRNA, neuregulin 1 mRNA, and platelet endothelial cell adhesion molecule-1 in rats with acute blood stasis induced by high-molecular-weight dextran. J TRADIT CHIN MED 2017; 37:846-853. [PMID: 32188196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To investigate the influence of acute blood stasis on nitric oxide (NO), angiotensin Ⅱ(AngⅡ), angiopoietin-like protein 4 (ANGPTL4) mRNA, neuregulin 1 (NRG-1) mRNA, and platelet endothelial cell adhesion molecule-1 (PECAM-1) in rats with stasis induced by high-molecular-weight dextran (HMWD). METHODS Seventy-five Sprague Dawley rats were divided randomly into five groups (n = 15 in each group): control group, immediate group, 1 h group, 3 h group, and 6 h group. A model of acute blood stasis was established via injection of HMWD into the tail vein. After performing electrocardiogram at the predetermined times according to the grouping, we collected blood and cardiac samples for hematoxylin-eosin (HE) staining and histopathological examination via transmission electron microscopy. Enzyme-linked immunosorbent assay was used to detect plasma levels of NO, AngⅡ, and fibrinogen. Real-time polymerase chain reaction was used to detect the expression of ANGPTL4 mRNA and NRG-1 mRNA. Immunohistochemical methods were used to detect PECAM-1 protein expression. RESULTS The rat model of blood stasis showed blood retention in the capillary lumens. The ST segment showed gradual elevation, and was still elevated at 3 and 6 h after induction of blood stasis. HE staining showed myocardial cell necrosis and dissolution after modeling, along with basement membrane rupture and mitochondrial structural damage. Transmission electron microscopy showed endothelial cell swelling and an increase in absorption vesicles immediately after modeling. Endothelial cell apoptosis was increased at 3 and 6 h after modeling. Cardiac muscle fibers were disordered and intercalated discs were blurred immediately after modeling. There were massive numbers of dissolved cardiac muscle fibers, ruptured basement membranes, and mitochondrial structural damage at 3 and 6 h after modeling. NO plasma concentration was significantly reduced immediately and 1 h after modeling, while it was increased at 3 and 6 h. Ang¢ò plasma concentration was decreased immediately after modeling, but increased at 1, 3, and 6 h. Fibrinogen plasma concentration was significantly increased at immediate, 1, 3, and 6 h after modeling. PECAM-1 protein expression was obviously increased immediately after modeling, at 1, 6 h was found mild augment. Expression of AngPTL4 mRNA was increased at immediate, 1, 3, and 6 h after modeling, and was found further augment at 3, and 6 h. Expression of NRG-1 mRNA was increased at immediate, 1, 3, and 6 h after modeling, and the strongest expression was at 1 h. CONCLUSION The pathological manifestation of acute blood stasis is characterized by microvascular blood retention. Prolonged blood stasis leads to worsening endothelial cell and cardiomyocyte damage, along with imbalances in the expression of vasomotor factors and increased vascular tone. The pathological damage caused by blood stasis also promotes the expression of cell protection factors.
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Affiliation(s)
- Yu Feng
- Institute of Traditional Chinese Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Junxiu Zhang
- Institute of Traditional Chinese Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Shaodan Li
- Institute of Traditional Chinese Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Yi Liu
- Institute of Traditional Chinese Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Yin Zhang
- Institute of Traditional Chinese Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Yunxia Guo
- Institute of Traditional Chinese Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Minghui Yang
- Institute of Traditional Chinese Medicine, Chinese People's Liberation Army General Hospital, Beijing 100853, China
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Zhao L, Gou D, Jiang X. Effect and safety of press-needle on chronic heart failure. J TRADIT CHIN MED 2017; 37:789-793. [PMID: 32188188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To evaluate the effect and safety of the press-needle on chronic heart failure. METHODS According to the inclusion criteria and exclusion criteria, we screened 60 inpatients with chronic heart failure, from the Department of Cardiology in the Traditional Chinese Medicine Affiliated Hospital of Southwest Medical University, 60 cases were randomly divided into treatment group (n = 30) and control group (n = 30) in accordance with the random number table. The control group received standard Western Medicine treatment (according to the Chinese guidelines for the diagnosis and treatment of heart failure 2014 and patients' condition). The treatment group received the press-needle treatment on the basis of standard Western Medicine treatment, both treated for 3 months. Observing the 6 min walking distance (6 MWD), the score of Minnesota living with heart failure questionnaire (MLHFQ), N-terminal pro-brain natriuretic peptide (NT-proBNP), angiotensin Ⅱ; (AngⅡ), left ventricular ejection fraction (LVEF) before and after treatment.RESULTS; No statistical differences were found between control group and treatment group at baseline. Through self-matching test before and after treatment, the observation indexes were improved (P < 0.05). When compared with control group, 6MWD increased, the MLHFQ, NT-proBNP, AngⅡ; decreased in treatment group, and the difference was statistically significant (P < 0.05). There was no significant difference between the two groups regarding to LVEF (P > 0.05). CONCLUSION The treatment of press-needle can significantly improve exercise tolerance and quality of life of patients with chronic heart failure, but the improvement of left ventricular ejection fraction was not significant.
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Affiliation(s)
- Lizhi Zhao
- Department of Cardiology, the Traditional Chinese Medicine Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Dongmei Gou
- Department of Cardiology, the Traditional Chinese Medicine Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xiaoli Jiang
- Department of Cardiology, Yibin First People Hospital, Yibin 644000, China
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Zhu Y. PRMT1 mediates podocyte injury and glomerular fibrosis through phosphorylation of ERK pathway. Biochem Biophys Res Commun 2017; 495:828-838. [PMID: 29129692 DOI: 10.1016/j.bbrc.2017.11.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 11/08/2017] [Indexed: 12/21/2022]
Abstract
Diabetic nephropathy (DN) is characterized by a change of glomerular structure and dysfunction of filtration barrier, which significantly accompanied by podocytes apoptosis and glomerular fibrosis. Angiotensin Ⅱ(Ang Ⅱ) induced activation of ERK1/2 signaling plays important roles in causing apoptosis of podocytes in DN kidneys. Previous studies have shown that PRMT1 have a pro-inflammatory function through activating ERK1/2 signaling pathway during development of chronic pulmonary disease, however, its role in DN development has not been investigated. Here, we detected a higher expression of PRMT1 in podocytes of kidneys from DN patients compared with normal kidneys. High glucose administration induced elevation of PRMT1 expression in podocytes, accompanied with higher phosphorylation of ERK and cleaved caspase-3. AMI-1, a selective inhibitor for PRMT1, could block these effects caused by glucose treatment. Administration of AMI-1 also attenuated apoptosis of podocytes during DN development of high-fatty diet-induced diabetic mice. Epithelial to mesenchymal transition during DN development, which characterized by extracellular matrix deposition in podocytes, was also restrained by AMI-1 treatment. Collectively, this study firstly demonstrated that PRMT1 exert podocyte-injury effects in mouse glomerulus through Ang Ⅱ/ERK pathway, which reveals a potential therapeutic target for DN.
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Affiliation(s)
- Yu Zhu
- Tongji University School of Medicine (First Unit), Department of Nephrology, Shanghai East Hospital (Second Unit), Shanghai, China
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Li C, Bo L, Li P, Lu X, Li W, Pan L, Sun Y, Mu D, Liu W, Jin F. Losartan, a selective antagonist of AT1 receptor, attenuates seawater inhalation induced lung injury via modulating JAK2/STATs and apoptosis in rat. Pulm Pharmacol Ther 2017; 45:69-79. [PMID: 28483563 DOI: 10.1016/j.pupt.2017.05.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/29/2017] [Accepted: 05/04/2017] [Indexed: 12/21/2022]
Abstract
Losartan is a selective antagonist of AngⅠ type (AT1) receptor of Angiotensin Ⅱ (Ang Ⅱ), which is widely used as a clinical medicine for the hypertension. Recent studies have shown that losartan was shown to protect from acute lung injury (ALI). However, the underlying mechanism remains unclear. The aim of this research was to clarify whether Ang Ⅱ participated in the inflammatory response of ALI induced by seawater inhalation, and whether losartan had the protective effects on ALI by blocking the combination of Ang Ⅱ and AT1 receptor. In the current study, the severity of lung injury and the inflammatory reactions during seawater drowning induced ALI were assessed. Besides, we also detected the activation of relative pathways such as NF-κB, JAK2/STATs and apoptosis. The results showed that seawater inhalation could up-regulate the expression of Ang Ⅱ and AT1. While pretreatment of losartan (especially 15 mg/kg and 30 mg/kg) alleviated lung injury by inhibiting Ang-Ⅱ and AT1 receptor combination and in turn decreased the expression of p-NF-κB and activation of JAK2/STATs pathway. We also confirmed that losartan could reduce the apoptotic ratio of cells in the lung by modulating the phosphorylation of JNK and leak of cytochrome C to cytosol. Taken together, these findings demonstrate that losartan might have a therapeutic potential as an anti-inflammatory agent for treating SWI-ALI.
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Affiliation(s)
- Congcong Li
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Liyan Bo
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Pengcheng Li
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Xi Lu
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Wangping Li
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Lei Pan
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Yani Sun
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Deguang Mu
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China
| | - Wei Liu
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China.
| | - Faguang Jin
- Department of Respiration, Tangdu Hospital, Fourth Military Medical University, 710038, PR China.
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Chen XP, Lu SJ, Huang K, Zhang W, Liu ZW, Zhong JH. Effects of Ang Ⅱ perfusion on transmural heterogeneous of Cx43 in acute myocardial ischemia reperfusion. ASIAN PAC J TROP MED 2016; 9:96-9. [PMID: 26851796 DOI: 10.1016/j.apjtm.2015.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 11/20/2015] [Accepted: 12/03/2015] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To observe the effects of angiotensin Ⅱ(Ang Ⅱ) perfusion on transmural heterogeneity of Cx43 expression in the rabbit model with acute myocardial ischemia reperfusion (MIR), and investigate the role of rennin-angiotensin system in malignant ventricular arrhythmia induced by MIR. METHODS Twenty rabbits were randomly divided into MIR group (n = 10) and Ang Ⅱ group (n = 10). MIR model was produced with traditional ligation and opening of the anterior descending coronary artery in all animal. The hearts in vitro in the MIR group and the Ang Ⅱ group were perfused with simply improved Tyrode's solution and containing Ang Ⅱ Tyrode's solution respectively. 90% monophasic action potential repolarization duration, transmural dispersion of repolarization, Cx43 protein (Cx43-pro) and mRNA (Cx43-Cq) expression in subepicardial, midmyocardial and subendocardial myocardium were measured in both groups. The greatest differences of Cx43-pro and Cx43-Cq among three myocardial layers were calculated and shown with ΔCx43-pro and ΔCx43-Cq respectively. RESULTS After Ang Ⅱ perfusion, 90% monophasic action potential repolarization duration among three myocardial layer were significantly prolonged (P < 0.05 and P < 0.01), and transmural dispersion of repolarization also significantly increased compared with the MIR group (P < 0.05). Compare with the MIR group, three myocardial Cx43-pro and Cx43-Cq expression in the Ang Ⅱ group were significantly decreased (P < 0.05 and P < 0.01), but ΔCx43-pro and ΔCx43-Cq were significant increased. CONCLUSIONS Renin-angiotensin system increases transmural heterogeneity of Cx43 expression in the rabbit model with MIR by Ang Ⅱ, and enlarge transmural dispersion of repolarization among three myocardial layers of left ventricular which induces malignant ventricular arrhythmia.
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Affiliation(s)
- Xiao-Pan Chen
- Hainan Medical University Affiliated Hospital, Haikou 570102, China
| | - Shi-Juan Lu
- Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou People's Hospital, Haikou 570208, China
| | - Kang Huang
- Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou People's Hospital, Haikou 570208, China
| | - Wei Zhang
- Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou People's Hospital, Haikou 570208, China
| | - Zheng-Wang Liu
- Hainan Medical University Affiliated Hospital, Haikou 570102, China
| | - Jiang-Hua Zhong
- Central South University Xiangya School of Medicine Affiliated Haikou Hospital, Haikou People's Hospital, Haikou 570208, China.
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Abstract
AIM: To elucidate the signal transduction mechanism by which angiotensin Ⅱ promotes the proliferation of hepatic stellate cells (HSCs).
METHODS: The influence of angiotensin Ⅱ on p38 MAPK expression in primarily cultured HSCs was detected by Western blot. The p38 MAPK inhibitor SB203580 was incubated with HSCs to observe its effect on angiotensin Ⅱ-induced transforming growth factor-β (TGF-β) secretion and collagen Ⅰ and Ⅳ expression.
RESULTS: Western blot analysis showed that, compared to the normal saline group, treatment with angiotensin Ⅱ (10-8, 10-7, 10-6 moL/L) for 24 h significantly induced p38 MAPK expression (0.45 ± 0.052, 0.61 ± 0.026, 0.87 ± 0.032 vs 0.27 ± 0.020, all P < 0.0005). Compared to the normal saline group, treatment with angiotensin Ⅱ (10-6 moL/L) for 24 h significantly induced HSC proliferation (0.1073 ± 0.0093 vs 0.5233 ± 0.0240, P < 0.0005), promoted incretion of TGF-β1 (10.6 ng/mL ± 0.98 ng/mL vs 100.8 ng/mL ± 3.67 ng/mL, P < 0.0005), and increased the expression of collagen α1(Ⅰ) and α1(Ⅳ) (1.13 ± 0.053 vs3.74 ± 0.047; 1.35 ± 0.035 vs 4.07 ± 0.072; both P < 0.0005). Pre-treatment with SB203580 significantly attenuated the effect of angiotensin Ⅱ on the above parameters in HSCs (0.2033 ± 0.0176 vs 0.5233 ± 0.0240; 21.07 ng/mL ± 2.08 ng/mL vs 100.8 ng/mL ± 3.67 ng/mL; 1.16 ± 0.024 vs 3.74 ± 0.047; 1.56 ± 0.075 vs 4.07 ± 0.072, all P < 0.0005).
CONCLUSION: Angiotensin Ⅱ induces HSC proliferation and increases expression of TGF-β1 via the p38 MAPK pathway.
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Yang SL, Shen L, Gao JC, Fan Q, Huang L, Wu YR. Expression of Angiotensin Ⅱand AT 1R in colorectal cancer. Shijie Huaren Xiaohua Zazhi 2012; 20:2213-2217. [DOI: 10.11569/wcjd.v20.i23.2213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the expression of Angiotensin Ⅱand AT1R in colorectal cancer.
METHODS: Fresh colonic specimens were obtained from 6 healthy volunteers and 24 patients suffering from colorectal cancer (including 6 patients with poorly differentiated adenocarcinoma, 9 patients with moderately differentiated adenocarcinoma and 9 patients with well differentiated adenocarcinoma) by endoscopic punch biopsy. The diagnosis was confirmed pathologically. Immunohistochemistry was used to examine the expression of Angiotensin Ⅱ and AT1R in the colon of patients with colorectal cancer and healthy volunteers.
RESULTS: The expression of Angiotensin Ⅱ and AT1R proteins in the colon of patients with colorectal cancer with different differentiation grades was significantly higher than that in normal controls (21.24 ± 4.60, 19.90 ± 5.16, 17.87 ± 5.30 vs 2.45 ± 0.83; 15.98 ± 3.66, 8.13 ± 2.49, 8.12 ± 2.13 vs 2.53 ± 0.82, all P < 0.01). The expression of Angiotensin II had no difference among colorectal cancer with different differentiation grades (P > 0.05). Compared to moderately and well differentiated adenocarcinoma, the expression of AT1R was higher in poorly differentiated grade (both P < 0.01).
CONCLUSION: These data suggest that Angiotensin Ⅱ and AT1R perhaps play an important role in the pathogenesis of colorectal cancer.
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Huang YB, Dong QM, Song SJ, Wei HS, Liu ZY, Cheng J, Mao Y. A1166C polymorphism of angiotensin Ⅱ type 1 receptor gene and its role in pathogenesis in liver cirrhosis. Shijie Huaren Xiaohua Zazhi 2006; 14:2556-2559. [DOI: 10.11569/wcjd.v14.i25.2556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To establish a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method to detect A1166C polymorphism of angiotensin Ⅱ type 1 receptor (AT1R) gene.
METHODS: A1166C polymorphism was detected and analyzed in 50 anti-HBs positive healthy controls in the serum and 46 patients with liver cirrhosis after hepatitis B virus infection. A set of primers was designed according to AT1R gene. The enzyme digestion site for restriction endonuclease DdeⅠwas also designed around A1166C. A or C allele was assured based on the enzymatic result of the polymerase chain reaction products.
RESULTS: Sequencing revealed 99% homogeneity between the two homozygous strains and the AT1R gene. The anticipated mutations appeared at position A1166C. As for genotype or allele, there were no significant differences at position A1166C between the hepatitis group and the liver cirrhosis group (P > 0.05).
CONCLUSION: The established method can be applied to detect the A1166C polymorphism of AT1R gene. The mutation at A1166C site has no correlation with liver fibrosis.
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