1. NDRG2 在老年核性白内障晶状体中的表达变化研究.
- Author
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刘冬瑞, 宋凡倩, 葛红岩, 郭 嫱, and 刘 平
- Subjects
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CRYSTALLINE lens , *CELLULAR aging , *PROTEIN expression , *CATARACT , *EPITHELIAL cells , *WESTERN immunoblotting - Abstract
Objective: To explore the expression level of NDRG2 protein in the lens tissues of the nuclear age related cataract patients and the possible mechanism. Methods: Collect lens without lens capsules from patients with nuclear age-related cataract undergoing surgical in First Affiliated Hospital, Harbin Medical University. Lens was grading though Emery method. And preliminarily adjust the concentration of each sample based on the protein concentration results. Detection of NDRG2 and Laminin γ2 expression level in different nuclear grading lenses by Western blot. HLE B-3 lens epithelial cell line was induced by 1200 μM H2O2 for 96h to establish the aging-realated cataract model. HLE B-3 cells without treated with H2O2 were set as the control group. Collect lysates from the experimental group and the control group, and detect NDRG2 and Lamininγ 2 in the two groups by Western blot. Further pCDNA3.1-NDRG2/ Lamin γ2 plasmids were transfected into HLE B-3 cells to explore the possible mechanism of NDRG2 involvement in different nuclear age related cataracts. Results: NDRG2 and Laminin γ2 were much higher in nuclear age-related cataract. The higher the nuclear grade, the more protein expression. In the H2O2 treated HLE B-3 cell aging model, the expression level of NDRG2 and Laminin γ2 were much higher than the control group. NDRG2 overexpression couled up-regulate expression of Lamin γ2, but Laminin γ2 overexpression had little influence to expression level of NDRG2. Conclusion: The expression of NDRG2 in nuclear age-related cataract lens tissues were increased and positively correlated with the nuclear grade, which might take effect by the upregulation of Laminin γ2. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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