ArticleAging cell2025
Diabetes Advances Cardiomyocyte Senescence Through Interfering Rnd3 Expression and Function.
Article in Aging cell, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Cellular Senescence in Diabetic Cardiomyopathy: Mechanistic Insights and Therapeutic Perspectives.Cardiovascular drugs and therapy · 2026Review
- miR-103a-3p contributes to diabetic retinopathy progression via suppressing MFN2.Diabetology & metabolic syndrome · 2026Article
- Pathogenesis of diabetic cardiomyopathy and emerging therapeutic strategies: a network-based perspective.Frontiers in clinical diabetes and healthcare · 2026Review
- Intelligent hyaluronidase-responsive supramolecular nanoassemblies for programmable dual-drug delivery and NIR-II photothermal therapy of atherosclerosis.Materials today. Bio · 2025Article
- RNLS promotes ovarian cancer growth and inhibits ferroptosis via mediating STAT3.Frontiers in oncology · 2025Article
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Authors and funding
17 authors.
Funding
Abstract
Rnd3 is a small Rho-GTPase that has been implicated in various cardiovascular diseases. Yet, its role in diabetes-induced cardiomyocyte senescence remains unknown. Here we tested the role of Rnd3 in cardiomyocyte senescence and diabetic cardiomyopathy (DCM). The expression of Rnd3 was found to be reduced in peripheral blood mononuclear cells from diabetic patients and correlated negatively with age but positively with cardiac function. In 96-week-old Sprague Dawley (SD) rats, cardiac function was impaired, accompanied by an increased number of SA-β-gal-positive cells and elevated levels of the senescence-associated secretory phenotype (SASP) related factors, compared to those of 12-week-old rats. Diabetes and high glucose (HG, 35 mmol/L D-glucose) suppressed Rnd3 expression in cardiomyocytes and induced cardiomyocyte senescence. The deficiency of Rnd3 exacerbated cardiomyocyte senescence in vitro and in vivo. MicroRNA sequencing in AC16 cells identified a conserved miR-103a-3p (present in humans and rats) as a key HG-upregulated microRNA that bound to the Rnd3 3'-UTR. In cultured cardiomyocytes, miR-103a-3p inhibitors antagonized HG-induced cardiomyocyte senescence dependent on Rnd3 expression. Treatment with AAV9 vectors carrying miR-103a-3p sponges and Rnd3-overexpressing plasmids alleviated cardiomyocyte senescence and restored cardiac function in diabetic SD rats. HG stimulation increased STAT3 (Tyr705) phosphorylation and promoted its nuclear translocation in H9C2 cells, an effect exacerbated by Rnd3 knockout. Mechanistically, Rnd3 interacted with p-STAT3 in the cytoplasm, facilitating proteasome-mediated ubiquitination and p-STAT3 degradation. The STAT3 inhibitor S3I-201 blocked HG-induced STAT3 activation and mitigated cardiomyocyte senescence. These findings suggest that diabetes induces cardiomyocyte senescence via the miR-103a-3p/Rnd3/STAT3 signaling pathway, highlighting a potential therapeutic target for DCM.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.