Overexpression of Insig-1 protects β cell against glucolipotoxicity via SREBP-1c
2011
Insig-1 Protects Beta Cells from High Sugar Damage
publication
Evidence: moderate
Author Information
Author(s): Chen Ke, Jin Ping, He Hong-hui, Xie Yan-hong, Xie Xiao-yun, Mo Zhao-hui
Primary Institution: Department of Endocrinology, Third Xiangya Hospital of Central South University, Changsha, China
Hypothesis
Does overexpression of Insig-1 protect beta cells against glucolipotoxicity via SREBP-1c?
Conclusion
Insig-1 plays a critical role in protecting beta cells from glucolipotoxicity by regulating SREBP-1c expression.
Supporting Evidence
- Insig-1 overexpression reduced apoptosis in beta cells exposed to high glucose.
- Insig-1 improved glucose-stimulated insulin secretion in beta cells.
- Insig-1 inhibited lipid accumulation in beta cells under glucolipotoxic conditions.
Takeaway
Insig-1 helps keep insulin-producing cells healthy when there's too much sugar and fat around.
Methodology
Insig-1 was overexpressed in INS-1 cells, and various assays were conducted to evaluate cell viability, apoptosis, insulin secretion, and lipid metabolism.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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