A novel mutation in the PRPH2 gene in a Chinese pedigree with retinitis pigmentosa and angle-closure glaucoma

BMC Ophthalmology

Xiu-juan Du¹  Wei-ning Li²  Le-yi Wang²  Yu-ting Zhang²  Jing Zhu² 

[1] Affiliated Eye Hospital of Shandong University of TCM, 250002, Jinan, Shandong, People’s Republic of China;Department of Ophthalmology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107#, Wenhua Xi Road, 250012, Jinan, Shandong, People’s Republic of China;

关键词: Retinitis pigmentosa (RP);    Angle-closure glaucoma (ACG);    Peripherin-2 (PRPH2);    Whole-exome sequencing (WES);   

DOI  :  10.1186/s12886-021-02064-5

来源: Springer

【 摘 要 】

BackgroundRetinitis pigmentosa (RP) is a rare, progressive, and hereditary disorder that leads to the progressive loss of vision and visual field, and in some cases blindness. The specific relationship between RP and glaucoma has been debated for decades.MethodsIn this study, we examined a Han RP family with concomitant angle-closure glaucoma (ACG), performed an inductive analysis of their clinical features and assistant results, and applied whole-exome sequencing (WES) technology for a molecular diagnosis.ResultsA novel transversion mutation (c.626 T > A) was identified in the peripherin-2 (PRPH2) gene in the proband, resulting in the substitution of Valine to aspartic acid in codon 209. A full ophthalmic examination showed that the proband with the c.626 T > A mutation had a typical RP manifestation, with close angles; however, the proband’s elder brother, who lacked the novel mutation, had a normal fundus and open angles.ConclusionOur results extend the genetic mutation spectrum of PRPH2 in RP, and provide evidence to support a genetic correlation between RP and ACG.

【 授权许可】

CC BY