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Identification of rare variants in novel candidate genes in pulmonary atresia patients by next generation sequencing.


ABSTRACT: Pulmonary atresia (PA) is a rare congenital heart defect (CHD) with complex manifestations and a high mortality rate. Since the genetic determinants in the pathogenesis of PA remain elusive, a thorough identification of the genetic factors through whole exome sequencing (WES) will provide novel insights into underlying mechanisms of PA. We performed WES data from PA/VSD (n = 60), PA/IVS (n = 20), TOF/PA (n = 20) and 100 healthy controls. Rare variants and novel genes were identified using variant-based association and gene-based burden analysis. Then we explored the expression pattern of our candidate genes in endothelium cell lines, pulmonary artery tissues, and embryonic hearts. 56 rare damage variants of 7 novel candidate genes (DNAH10, DST, FAT1, HMCN1, HNRNPC, TEP1, and TYK2) were certified to have function in PA pathogenesis for the first time. In our research, the genetic pattern among PA/VSD, PA/IVS and TOF/PA were different to some degree. Taken together, our findings contribute new insights into the molecular basis of this rare congenital birth defect.

SUBMITTER: Shi X 

PROVIDER: S-EPMC7044470 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Identification of rare variants in novel candidate genes in pulmonary atresia patients by next generation sequencing.

Shi Xin X   Zhang Li L   Bai Kai K   Xie Huilin H   Shi Tieliu T   Zhang Ruilin R   Fu Qihua Q   Chen Sun S   Lu Yanan Y   Yu Yu Y   Sun Kun K  

Computational and structural biotechnology journal 20200212


Pulmonary atresia (PA) is a rare congenital heart defect (CHD) with complex manifestations and a high mortality rate. Since the genetic determinants in the pathogenesis of PA remain elusive, a thorough identification of the genetic factors through whole exome sequencing (WES) will provide novel insights into underlying mechanisms of PA. We performed WES data from PA/VSD (n = 60), PA/IVS (n = 20), TOF/PA (n = 20) and 100 healthy controls. Rare variants and novel genes were identified using varian  ...[more]

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