ArticleIslets2024
Neuregulin 4 attenuates pancreatic β-cell apoptosis induced by lipotoxicity via activating mTOR-mediated autophagy.
Article in Islets, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Schisandra chinensis polysaccharide attenuates diabetic islet cell injury by promoting autophagy via suppression of the PI3K/AKT/mTOR signaling cascade.Journal of molecular histology · 2026Article
- Neuregulin 4 in Insulin Resistance: Mechanisms, Controversies, and Therapeutic Perspectives.Diabetes, metabolic syndrome and obesity : targets and therapy · 2026Review
- Emerging Insights into Brown Adipose Tissue Crosstalk With Pancreatic β-Cells in Metabolic Regulation.Endocrinology · 2025Review
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Neuregulin 4 (Nrg4) is a brown fat-enriched endocrine factor that ameliorates lipid metabolism disorders. Autophagy is critical for pancreatic β-cell to counteract lipotoxicity-induced apoptosis. This study aimed at exploring whether Nrg4 attenuates lipotoxicity-induced β-cell apoptosis by regulating autophagy. The mouse pancreatic β-cell line MIN6 was cultured in palmitic acid (PA) with or without Nrg4 administration. Apoptosis rate, together with anti-apoptotic and pro-apoptotic protein levels, was investigated. Autophagic flux and autophagy-related protein levels along with related signaling pathways that regulate autophagy were also evaluated. Results showed that Nrg4 decreased PA-induced MIN6 apoptosis, enhanced anti-apoptotic protein B-cell lymphoma 2 (Bcl-2) expression and reduced pro-apoptotic proteins Bcl-2-associated X protein (Bax) and cleaved-caspase 3 expressions. Autophagy levels in MIN6 also decreased with PA treatment and Nrg4 administration reactivated autophagy. Further, Nrg4 administration activated autophagy via the mammalian target of rapamycin (mTOR) signaling pathway. In addition, when the mTOR pathway was stimulated or autophagy was suppressed, the beneficial effects of Nrg4 administration on MIN6 apoptosis were diminished. These results imply that Nrg4 administration attenuates MIN6 apoptosis by promoting mTOR-dependent autophagy and thus may lead to a new therapeutic method for type 2 diabetes mellitus (T2DM).
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Registered trials
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.