Bisphenol A exposure triggers endoplasmic reticulum stress pathway leading to ocular axial elongation in mice

Frontiers in Medicine

Medicine

Kazuno Negishi¹  Kazuo Tsubota²  Toshihide Kurihara³  Junhan Chen³  Shin-ichi Ikeda³  Longdan Kang⁴ 

[1] Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan;Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan;Tsubota Laboratory, Inc., Tokyo, Japan;Laboratory of Photobiology, Keio University School of Medicine, Tokyo, Japan;Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan;Laboratory of Photobiology, Keio University School of Medicine, Tokyo, Japan;Department of Ophthalmology, The First Hospital of China Medical University, Shenyang, China;

关键词: bisphenol A;    endoplasmic reticulum stress;    ATF6;    PERK;    sclera;    myopia;   

DOI  :  10.3389/fmed.2023.1255121

 received in 2023-07-08, accepted in 2023-08-23,  发布年份 2023

来源: Frontiers

【 摘 要 】

BackgroundOcular axial elongation is one of the features of myopia progression. Endoplasmic reticulum (ER) stress-associated scleral remodeling plays an important role in ocular axial elongation. Bisphenol A (BPA) is one of the most common environmental pollutants and is known to affect various human organs through ER stress. However, whether BPA exerts an effect on scleral remodeling remains unknown. The purpose of this study was to determine the effect of BPA on the development of myopia and scleral ER stress.MethodsBPA was administered by intraperitoneal injection. 4-PBA was administered as an endoplasmic reticulum stress inhibitor by eye drops. Refraction and axial length were measured by refractometer and SD-OCT system. Western blot was performed to detect the expression level of ER stress-related proteins.ResultsBPA-administered mice exhibit axial elongation and myopic refractive shift with endoplasmic reticulum stress in the sclera. BPA administration activated scleral PERK and ATF6 pathways, and 4-PBA eye drops attenuated ER stress response and suppressed myopia progression.ConclusionBPA controlled axial elongation during myopia development in a mouse model by inducing scleral ER stress and activation of the PERK/ATF6 pathway. 4-PBA eye drops as ER stress inhibitor suppressed BPA-induced myopia development.

【 授权许可】

Unknown   
Copyright © 2023 Chen, Ikeda, Kang, Negishi, Tsubota and Kurihara.