College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
Institute of Life Sciences, Hangzhou Normal University, Hangzhou, Zhejiang, China.
Sci Rep. 2016 Sep 6;6:32792. doi: 10.1038/srep32792.
Retinitis pigmentosa (RP) is a heterogeneous group of inherited retinal diseases. The prevalence of RP and the mutation spectrum vary across populations. Hispanic people account for approximately 17% of the United States population, and the genetic etiologies of RP of this ethnic group still remain not well defined. Utilizing next-generation sequencing (NGS), we screened mutations in known retinal disease-causing genes in an RP cohort of 35 unrelated Hispanic probands from the Miami area. We achieved a solving rate of 66% and identified 15 novel putative pathogenic mutations, including a frequent founder mutation disrupting PRPF31 splicing. Our data show that the mutation spectrum of Hispanic RP receives a significant impact from disease-causing alleles of Spanish origin and may also contain population-specific alleles.
色素性视网膜炎(RP)是一组异质性遗传性视网膜疾病。RP 的患病率和突变谱在不同人群中存在差异。西班牙裔约占美国人口的 17%,而该族群的 RP 的遗传病因仍未明确。利用下一代测序(NGS),我们在来自迈阿密地区的 35 名无血缘关系的西班牙裔先证者的 RP 队列中筛选了已知致盲性眼病基因的突变。我们的解决率达到了 66%,并发现了 15 个新的可能致病的突变,包括一个经常导致 PRPF31 剪接异常的常见的西班牙裔来源的致病变异。我们的数据表明,西班牙裔 RP 的突变谱受到来自西班牙裔致病等位基因的显著影响,也可能包含特定人群的等位基因。