ArticleChinese medicine2022
Downregulation of lncRNA Miat contributes to the protective effect of electroacupuncture against myocardial fibrosis.
Article in Chinese medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 11 citations in OpenAlex.
- Electroacupuncture alleviates myocardial ischemia-reperfusion injury by targeting and inhibiting NLRP3 inflammasome-mediated cardiomyocyte pyroptosis via serum exosomal miR-22-3p.Frontiers in immunology · 2026Article
- Plasma-derived exosomal miR-144-3p targeting IL-1β is involved in pressure pain threshold regulation at PC6 acupoint in myocardial ischemia rats.Journal of traditional and complementary medicine · 2026Article
- Astragaloside IV inhibits the progression of hypertensive heart disease via the RXRA/PPARG/SIRT3 axis.Journal of molecular medicine (Berlin, Germany) · 2025Article
- P2X7 receptor is essential for ST36-attenuated cardiac fibrosis upon beta-adrenergic insult.Purinergic signalling · 2025Article
- Long Non-coding RNA Involved in the Pathophysiology of Atrial Fibrillation.Cardiovascular drugs and therapy · 2025Review
- Neuro- and immuno-modulation mediated by the cardiac sympathetic nerve: a novel insight into the anti-ischemic efficacy of acupuncture.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2024Review
- JAK/STAT3 signaling in cardiac fibrosis: a promising therapeutic target.Frontiers in pharmacology · 2024Review
- Novel miRNA Biomarkers for Patients With Duchenne Muscular Dystrophy.Frontiers in neurology · 2022Article
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11 authors at 2 institutions in 1 country.
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Abstract
backgroundMyocardial fibrosis changes the structure of myocardium, leads to cardiac dysfunction and induces arrhythmia and cardiac ischemia, threatening patients' lives. Electroacupuncture at PC6 (Neiguan) was previously found to inhibit myocardial fibrosis. Long non-coding RNAs (lncRNAs) play a variety of regulatory functions in myocardial fibrosis, but whether electroacupuncture can inhibit myocardial fibrosis by regulating lncRNA has rarely been reported.
methodsIn this study, we constructed myocardial fibrosis rat models using isoproterenol (ISO) and treated rats with electroacupuncture at PC6 point and non-point as control. Hematoxylin-eosin, Masson and Sirius Red staining were performed to assess the pathological changes and collagen deposition. The expression of fibrosis-related markers in rat myocardial tissue were detected by RT-qPCR and Western blot. Miat, an important long non-coding RNA, was selected to study the regulation of myocardial fibrosis by electroacupuncture at the transcriptional and post-transcriptional levels. In post-transcriptional level, we explored the myocardial fibrosis regulation effect of Miat on the sponge effect of miR-133a-3p. At the transcriptional level, we studied the formation of heterodimer PPARG-RXRA complex and promotion of the TGF-β1 transcription.
resultsMiat was overexpressed by ISO injection in rats. We found that Miat can play a dual regulatory role in myocardial fibrosis. Miat can sponge miR-133a-3p in an Ago2-dependent manner, reduce the binding of miR-133a-3p target to the 3'UTR region of CTGF mRNA and improve the protein expression level of CTGF. In addition, it can also directly bind with PPARG protein, inhibit the formation of heterodimer PPARG-RXRA complex and then promote the transcription of TGF-β1. Electroacupuncture at PC6 point, but not at non-points, can reduce the expression of Miat, thus inhibiting the expression of CTGF and TGF-β1 and inhibiting myocardial fibrosis.
conclusionWe revealed that electroacupuncture at PC6 point can inhibit the process of myocardial fibrosis by reducing the expression of lncRNA Miat, which is a potential therapeutic method for myocardial fibrosis.
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