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Updated: Apr 5, 2026
12:32
High-resolution Respirometry to Measure Mitochondrial Function of Intact Beta Cells in the Presence of Natural Compounds
Published on: January 23, 2018
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The long non-coding RNA KDM4A-AS1 protects β-cell function via the miR-423-5p/growth differentiation factor 11 axis
Summary
Long non-coding RNA KDM4A-AS1 protects pancreatic beta cells in type 2 diabetes by regulating the miR-423-5p/GDF11 pathway. This finding offers a novel diagnostic and therapeutic target for type 2 diabetes mellitus (T2DM).
Area of Science:
- Molecular Biology
- Endocrinology
- Genetics
Background:
- Type 2 diabetes mellitus (T2DM) is a prevalent metabolic disorder with severe health complications.
- Long non-coding RNAs (lncRNAs) play a role in the pathogenesis of diabetes and its associated conditions.
Purpose of the Study:
- To investigate the regulatory mechanism of lncRNA KDM4A-AS1 in T2DM.
- To elucidate the role of KDM4A-AS1 in pancreatic beta cell function.
Main Methods:
- Serum samples from 98 T2DM patients and 91 healthy controls were analyzed for gene expression using RT-qPCR.
- In vitro studies assessed cell proliferation (CCK-8), apoptosis (flow cytometry), and insulin secretion (ELISA).
- RNA immunoprecipitation and dual-luciferase reporter assays confirmed interactions between KDM4A-AS1, miR-423-5p, and GDF11.
Main Results:
- KDM4A-AS1 and GDF11 were downregulated, while miR-423-5p was upregulated in T2DM patients' serum.
- KDM4A-AS1 levels correlated negatively with fasting plasma glucose and HbA1c, indicating diagnostic potential for T2DM.
- Overexpression of KDM4A-AS1 promoted insulin gene expression, enhanced glucose-stimulated insulin secretion, increased beta cell proliferation, and reduced apoptosis.
Conclusions:
- KDM4A-AS1 protects pancreatic beta cell function via the miR-423-5p/GDF11 signaling axis.
- KDM4A-AS1 represents a promising new target for T2DM diagnosis and treatment.
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