ArticleThe Journal of biological chemistry2020
Glucose stimulates microRNA-199 expression in murine pancreatic β-cells.
Article in The Journal of biological chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 16 citations in OpenAlex.
- MicroRNA-Driven Regulation of β-Cell Function in Type 2 Diabetes: Molecular Mechanisms, Network Insights, and Translational Perspectives.Acta physiologica (Oxford, England) · 2026Review
- MiRNAs in hyperglycemia-induced metabolic memory: established mechanisms and emerging nuclear activation concepts.Diabetology & metabolic syndrome · 2026Review
- Article
- miRNA profiling of hiPSC-derived neurons from monozygotic twins discordant for schizophrenia.Schizophrenia (Heidelberg, Germany) · 2025Article
- Overexpression of miR-199b-5p in Colony Forming Unit-Hill's Colonies Positively Mediates the Inflammatory Response in Subclinical Cardiovascular Disease Model: Metformin Therapy Attenuates Its Expression.International journal of molecular sciences · 2024Article
- Review
- Human pancreatic islet microRNAs implicated in diabetes and related traits by large-scale genetic analysis.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Article
- Novel roles of mTORC2 in regulation of insulin secretion by actin filament remodeling.American journal of physiology. Endocrinology and metabolism · 2022Article
- The Transcription Factor YY1 Is Essential for Normal DNA Repair and Cell Cycle in Human and Mouse β-Cells.Diabetes · 2022Article
- The RNA-binding protein LARP1 is dispensable for pancreatic β-cell function and mass.Scientific reports · 2021Article
- Molecular Mechanisms of Nutrient-Mediated Regulation of MicroRNAs in Pancreatic β-cells.Frontiers in endocrinology · 2021Review
- microRNA-199a-3p inhibits hepatic apoptosis and hepatocarcinogenesis by targeting PDCD4.Oncogenesis · 2020Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
MicroRNA 199 (miR-199) negatively impacts pancreatic β-cell function and its expression is highly increased in islets from diabetic mice as well as in plasma of diabetic patients. Here we investigated how miR-199 expression is regulated in β-cells by assessing expression of miR-199 precursors (primiR-199a1, primiR-199a2, and primiR-199b) and mature miR-199 (miR-199-3p and miR-199-5p) and promoter transcriptional activity assays in mouse islets and mouse insulinoma cells (MIN6) under different stimuli. We found that mouse islets equally express miR-199-3p and miR-199-5p. However, the primiRNA expression levels differed; although primiR-199a1 expression was about 30% greater than that of primiR-199a2, primiR-199b is barely detected in islets. We observed a 2-fold increase in primiR-199a1 and primiR-199a2 mRNA levels in mouse islets cultured in 10 mm glucose compared with 5.5 mm glucose. Similar responses to glucose were observed in MIN6 cells. Exposure to 30 mm KCl to induce membrane depolarization and calcium influx increased expression of primiR-199a2 but not of primiR-199a1 in MIN6 cells, indicating that calcium influx was involved. Transcriptional activity studies in MIN6 cells also revealed that primiR-199a2 promoter activity was enhanced by glucose and reduced by 2-deoxy-D-glucose-induced starvation. KCl and the potassium channel blocker tolbutamide also stimulated primiR-199a2 promoter activity. Calcium channel blockade by nifedipine reduced primiR-199a2 promoter activity in MIN6 cells, and diazoxide-mediated calcium influx inhibition blunted glucose up-regulation of miR-199-3p in islets. In conclusion, we uncover that glucose acutely up-regulates miR-199 family expression in β-cells. Glucose metabolism and calcium influx are involved in primiR-199a2 expression but not primiR-199a1 expression.
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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 OpenQuestion graph.