Xiang-Jia Zhu1, Min-Jie Chen1, Ke-Ke Zhang1, Jin Yang1, Yi Lu2. 1. From the Department of Ophthalmology (Zhu, Chen, Zhang, Yang, Lu), Eye and Ear, Nose, and Throat Hospital of Fudan University, the Key Laboratory of Myopia (Zhu, Chen, Zhang, Yang, Lu), Ministry of Health, and Shanghai Key Laboratory of Visual Impairment and Restoration (Zhu, Chen, Zhang, Yang, Lu), Shanghai, China. 2. From the Department of Ophthalmology (Zhu, Chen, Zhang, Yang, Lu), Eye and Ear, Nose, and Throat Hospital of Fudan University, the Key Laboratory of Myopia (Zhu, Chen, Zhang, Yang, Lu), Ministry of Health, and Shanghai Key Laboratory of Visual Impairment and Restoration (Zhu, Chen, Zhang, Yang, Lu), Shanghai, China. Electronic address: luyieent@126.com.
Abstract
PURPOSE: To evaluate the level of transforming growth factor-β2 (TGF-β2) in the aqueous humor of highly myopic cataract patients and its correlation with capsule contraction syndrome. SETTING: Eye and ENT Hospital of Fudan University, Shanghai, China. DESIGN: Prospective comparative case series. METHODS: The highly myopic cataract patients were divided into the following 2 groups according to the Lens Opacity Classification System III: nuclear color (NC) 2 to 3 and NC 5 to 6. Aqueous humor TGF-β2 concentrations were assayed in the highly myopic cataract and age-related cataract groups. The TGF-β2, TGF-βRII (the type II receptor for TGF-β2), and α-smooth muscle actin (α-SMA) expressions in lens epithelial cells (LECs) were detected by real-time polymerase chain reaction and immunofluorescent staining. RESULTS: The study comprised 40 highly myopic cataract patients (40 eyes) and 20 patients (20 eyes) with age-related cataract as the control group. Compared with the control group, the highly myopic cataract group had significantly higher TGF-β2 concentration in the aqueous humor and increased TGF-βRII expression in LECs, especially in NC 5 to 6 cases. Expression of α-SMA was barely detectable in both groups. CONCLUSION: In highly myopic cataract patients, especially those with dark nuclei, elevated aqueous humor TGF-β2 levels and the upregulated TGF-βRII expression in LECs might contribute to the pathogenesis of capsule contraction syndrome through transdifferentiation of LECs into myofibroblasts. FINANCIAL DISCLOSURE: None of the authors has a financial or proprietary interest in any material or method mentioned.
PURPOSE: To evaluate the level of transforming growth factor-β2 (TGF-β2) in the aqueous humor of highly myopic cataractpatients and its correlation with capsule contraction syndrome. SETTING: Eye and ENT Hospital of Fudan University, Shanghai, China. DESIGN: Prospective comparative case series. METHODS: The highly myopic cataractpatients were divided into the following 2 groups according to the Lens Opacity Classification System III: nuclear color (NC) 2 to 3 and NC 5 to 6. Aqueous humor TGF-β2 concentrations were assayed in the highly myopic cataract and age-related cataract groups. The TGF-β2, TGF-βRII (the type II receptor for TGF-β2), and α-smooth muscle actin (α-SMA) expressions in lens epithelial cells (LECs) were detected by real-time polymerase chain reaction and immunofluorescent staining. RESULTS: The study comprised 40 highly myopic cataractpatients (40 eyes) and 20 patients (20 eyes) with age-related cataract as the control group. Compared with the control group, the highly myopic cataract group had significantly higher TGF-β2 concentration in the aqueous humor and increased TGF-βRII expression in LECs, especially in NC 5 to 6 cases. Expression of α-SMA was barely detectable in both groups. CONCLUSION: In highly myopic cataractpatients, especially those with dark nuclei, elevated aqueous humor TGF-β2 levels and the upregulated TGF-βRII expression in LECs might contribute to the pathogenesis of capsule contraction syndrome through transdifferentiation of LECs into myofibroblasts. FINANCIAL DISCLOSURE: None of the authors has a financial or proprietary interest in any material or method mentioned.
Authors: Zongbo Wei; Jane Caty; Jeremy Whitson; Amy D Zhang; Ramkumar Srinivasagan; Terrance J Kavanagh; Hong Yan; Xingjun Fan Journal: Am J Pathol Date: 2017-08-19 Impact factor: 4.307
Authors: Jovana Bisevac; Natalia S Anisimova; Richárd Nagymihály; Olav Kristianslund; Kirankumar Katta; Agate Noer; Ilias H Sharafetdinov; Liv Drolsum; Morten C Moe; Boris E Malyugin; Goran Petrovski Journal: Sci Rep Date: 2020-11-25 Impact factor: 4.379