A novel PKHD1 mutation identified in a family affected by ARPKD  

作　　者：Ling Hou Yue Du Chengguang Zhao Yubin Wu 

机构地区：[1]Department of Pediatric,Shengjing Hospital of China Medical University,Shenyang,China

出　　处：《Journal of Pediatric Diseases》2018年第1期7-11,共5页儿科疾病杂志

基　　金：grants from the Natural Science Foundation of Liaoning Province,China (2013225086,2013021099,2015020492);the Science and Technology Planning Project of Shenyang City,China (F13-221-9-59).

摘　　要：Objective: Autosomal recessive polycystic kidney disease (ARPKD) is a rare inherited renal cystic disease involving multiple organs. It is caused by mutations in the PKHD1 gene. Here, we investigate the gene mutations in a family affected by ARPKD. Methods: Genomic DNA was extracted from peripheral blood leukocytes obtained from the subjects, by means of targeted gene capture and next generation sequencing technologies for mutation screening, and were confirmed by Sanger sequencing. Results: Two heterozygous mutations of PKHD1, c.6890T>C (p.Ile2297Thr) and c.11215C>T (p.Arg3739Trp), located in exons 43 and 62, respectively, were identified in the patient. Furthermore, the father and mother were revealed to be carriers of heterozygous c.6890T>C (p.Ile2297Thr) and c.11215C>T (p.Arg3739Trp) mutations, respectively. Mutation of c.11215C>T (p.Arg3739Trp) has been found in the ARPKD Mutation Database (http://www.humgen.rwth-aachen.de) but mutation of c.6890T>C (p.Ile2297Thr) has not been reported. Conclusions : Compound heterozygous PKHD1 mutations were elucidated to be the molecular basis of ARPKD in this patient. The newly identified c.6890T > C (p.Ile2297Thr) mutation in the patient expands the mutation spectrum of the PKHD1 gene. Targeted gene capture and next generation sequencing are suitable for genetic diagnosis of single-gene inherited diseases like ARPKD, in which the pathogenic gene is large.

关 键 词：Autosomal RECESSIVE POLYCYSTIC KIDNEY disease PKHD1 gene next generation SEQUENCING 

分 类 号：R[医药卫生]