ReferenceID 1518
The association between RGS4 and choline in cardiac fibrosis
Cell Commun Signal
BACKGROUND: Myocardial fibrosis is caused by the adverse and powerful remodeling of the heart secondary to the death of cardiomyocytes after myocardial infarction. Regulators of G protein Signaling (RGS) 4 is involved in
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- Reference Id
- 1518
- Evidence Id
- 18108
- Core Evidence Id
- 18108
- Source Reference Id
- 3041
- Herb2 Reference Id
- HBREF003838
- Subject Paper Key
- HBIN020406_33892733
- Pubmed Id
- 33892733
- Doi
- 10.1186/s12964-020-00682-y
- Paper Title
- The association between RGS4 and choline in cardiac fibrosis
- Paper Abstract
- BACKGROUND: Myocardial fibrosis is caused by the adverse and powerful remodeling of the heart secondary to the death of cardiomyocytes after myocardial infarction. Regulators of G protein Signaling (RGS) 4 is involved in cardiac diseases through regulating G protein-coupled receptors (GPCRs). METHODS: Cardiac fibrosis models were established through cardiac fibroblasts (CFs) treatment with transforming growth factor (TGF)-beta1 in vitro and mice subjected to myocardial infarction in vivo. The mRNA expression of RGS4, collagen I/III and alpha-SMA detected by qRT-PCR. Protein level of RGS4, collagen I, CTGF and alpha-SMA detected by Western blot. The ejection fraction (EF%) and fractional shortening (FS%) of mice were measured by echocardiography. Collagen deposition of mice was tested by Masson staining. RESULTS: The expression of RGS4 increased in CFs treatment with TGF-beta1 and in MI mice. The model of cardiac fibrosis detected by qRT-PCR and Western blot. It was demonstrated that inhibition of RGS4 expression improved cardiac fibrosis by transfection with small interfering RNA in CFs and injection with lentivirus shRNA in mice. The protective effect of choline against cardiac fibrosis was counteracted by overexpression of RGS4 in vitro and in vivo. Moreover, choline inhibited the protein level of TGF-beta1, p-Smad2/3, p-p38 and p-ERK1/2 in CFs treated with TGF-beta1, which were restored by RGS4 overexpression. CONCLUSION: This study demonstrated that RGS4 promoted cardiac fibrosis and attenuated the anti-cardiac fibrosis of choline. RGS4 may weaken anti-cardiac fibrosis of choline through TGF-beta1/Smad and MAPK signaling pathways. Video Abstract: Video Byte of this article.
- Journal
- Cell Commun Signal
- Publish Year
- 2021
- Experiment Subject
- mouse
- Experiment Type
- Animal & Cell Experiment
- Phenotype Related
- Myocardial Infarction; Cardiac Diseases; Anti-cardiac Fibrosis; Cardiac Fibrosis; Myocardial Fibrosis
- Paper Title Cn
- Paper Title En
- The association between RGS4 and choline in cardiac fibrosis
- Bilingual Status
- semi_complete