Nr2e1 ablation impairs liver glucolipid metabolism and induces inflammation, high-fat diets amplify the damage
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Updated: Jan 6, 2026
Inducing and Characterizing Vesicular Steatosis in Differentiated HepaRG Cells
Published on: July 18, 2019
Qing Xiong1, Yuwen Wu1, Miao Yang1
1Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, 430071, China.
Abstract:
Nonalcoholic fatty liver disease (NAFLD) is a common and complex metabolic disorder. Despite the widespread concern, there are still few effective treatments except lifestyle interventions. Nuclear receptor subfamily 2 group E member 1 (Nr2e1) is a transcription factor which regulates many biological processes, including development, growth, and differentiation of nerve cells. However, its specific function in hepatocyte is still unknown. In the present study, we found that the expression of Nr2e1 decreased in the livers of high-fat diet-fed mice. We generated Nr2e1 knockout (KO) mice and studied whether Nr2e1 ablation was related to NAFLD. We found that typical pathological features of NAFLD, including insulin resistance, hepatic steatosis, and inflammation, were present in Nr2e1-KO mice or high-fat diet-induced mice models. In conclusion, Nr2e1 ablation promotes liver steatosis and systemic insulin resistance. Nr2e1 may play a protective role in the formation of NAFLD and may serve as a worthy therapeutic target for NAFLD.
Insights
Nonalcoholic fatty liver disease (NAFLD) is a metabolic disorder. Loss of Nr2e1 promotes liver steatosis and insulin resistance, suggesting Nr2e1 may protect against NAFLD.
Area of Science:
- Hepatology
- Metabolic Disorders
- Molecular Biology
Background:
- Nonalcoholic fatty liver disease (NAFLD) is a prevalent metabolic disorder with limited therapeutic options beyond lifestyle changes.
- Nuclear receptor subfamily 2 group E member 1 (Nr2e1) is a transcription factor with known roles in neuronal development, but its function in hepatocytes remains unexplored.
- Understanding novel molecular mechanisms is crucial for developing effective NAFLD treatments.
Purpose of the Study:
- To investigate the role of Nr2e1 in the pathogenesis of nonalcoholic fatty liver disease (NAFLD).
- To determine if Nr2e1 deficiency exacerbates NAFLD-related pathologies.
- To evaluate Nr2e1 as a potential therapeutic target for NAFLD.
Main Methods:
- Utilized high-fat diet-induced mouse models to mimic NAFLD conditions.
- Generated and analyzed Nr2e1 knockout (KO) mice to assess the impact of gene ablation.
- Assessed key NAFLD pathological features, including hepatic steatosis, inflammation, and insulin resistance.
Main Results:
- Nr2e1 expression was found to be downregulated in the livers of mice fed a high-fat diet.
- Nr2e1-KO mice exhibited significant hepatic steatosis and systemic insulin resistance.
- High-fat diet-induced mice also showed exacerbated NAFLD features, correlating with reduced Nr2e1.
Conclusions:
- Ablation of Nr2e1 promotes the development of liver steatosis and systemic insulin resistance.
- Nr2e1 appears to play a protective role in the context of NAFLD.
- Nr2e1 represents a promising therapeutic target for managing nonalcoholic fatty liver disease.
