Novel homozygous variant in ARL2BP associated with retinitis pigmentosa, situs inversus, and male infertility in a Chinese patient. Issue 4 (22nd December 2022)

• Record Type: Journal Article
• Authors: Zhu, Tian; Li, Hui; Wei, Xing; Li, Wuyi; Sun, Zixi; Sui, Ruifang
• Is Part Of: Clinical genetics. Volume 103:Issue 4(2023)
• Page Start: 472
• Page End: 477
• Publication Date: 2022-12-22
• Subjects: ARL2BP -- ciliopathy -- male infertility -- retinitis pigmentosa -- situs inversus; Medical genetics -- Periodicals; 616.0420
• DOI: 10.1111/cge.14278
• Languages: English
• ISSNs: 0009-9163

Abstract

Abstract: ARL2BP is a ciliary gene associated with multiple ciliopathy phenotypes. On comprehensive clinical examinations using molecular methods, we identified a Chinese patient from a consanguineous family carrying a novel homozygous variant c.22_23delAG (p.S8Lfs*10) in ARL2BP, presenting with retinitis pigmentosa (RP), situs inversus totalis, and oligozoospermia. Situs inversus and male infertility have never been reported in the same patient with ARL2BP variants; therefore, this a novel ARL2BP ‐associated phenotypic triad of RP, situs inversus, and male infertility. Moreover, this patient likely had olfactory dysfunction susceptibility and presented with anosmia. We found reduced patient‐derived fibroblast proliferation and ciliary length. Our findings expand the genotypic spectrum and reveal abnormal cell proliferation and ciliogenesis in ARL2BP ‐associated patients. Abstract : Novel homozygous variant c.22_23delAG (p.S8Lfs*10) in ARL2BP caused retinitis pigmentosa, situs inversus, and male infertility in a Chinese patient with abnormal ciliogenesis and initial depolymerization.