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. 2020 Nov;45(11):1385-1389.
doi: 10.1080/02713683.2020.1746813. Epub 2020 Mar 30.

Expression of Neovascular Associated Factors PEDF and αB-crystallin in Human Lens Epithelial Cells

Xinying Hu  1   2 , Yuzhi Ding  1 , Zhirong Wang  2 , Juan Hu  2 , Xuelian Liu  3 , Yuyan Tang  3 , Ming Zhong  2 , Jie Luan  1
Affiliations

Expression of Neovascular Associated Factors PEDF and αB-crystallin in Human Lens Epithelial Cells

Xinying Hu et al. Curr Eye Res. 2020 Nov.

Abstract

Objective: To investigate the expression of pigment epithelium-derived factor (PEDF) and αB-crystallin in human lens epithelial cells (LEC) and explore their relationships with diabetes. Methods: Lens anterior capsules attached with LEC were collected from cataract surgeries in patients with or without diabetes, and grouped as following: non-diabetes mellitus (NDM) group, no diabetic retinopathy (NDR) group, non-proliferative diabetic retinopathy (NPDR) group and proliferative diabetic retinopathy (PDR) group. The expression of PEDF and αB-crystallin in all groups was determined by Western blot and immunofluorescence assay. Results: PEDF and αB-crystallin protein were both detected in LEC. PEDF was mainly distributed in the cytoplasm, whereas αB-crystallin was present in both cytoplasm and nucleus. The levels of PEDF protein and αB-crystallin protein in LEC were significantly increased with the appearance and aggravation of diabetic retinopathy (DR) (p < .01). Conclusion: The expression of PEDF and αB-crystallin protein is both positively correlated with the progression of DR, which may contribute to the regulation of iris neovascularization.

Keywords: Pigment epithelium-derived factor; diabetes; lens epithelial cells; neovascular; αB-crystallin.

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