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截断和突变的联合人类基因型与扩张型心肌病的严重和早发有关。

The Combined Human Genotype of Truncating and Mutations Is Associated with Severe and Early Onset of Dilated Cardiomyopathy.

机构信息

Herz-und Diabeteszentrum NRW, Universitätsklinikum der Ruhr-Universität Bochum, Klinik für Thorax- und Kardiovaskularchirurgie, Georgstr. 11, D-32545 Bad Oeynhausen, Germany.

Erich und Hanna Klessmann-Institut für Kardiovaskuläre Forschung und Entwicklung, Georgstr. 11, D-32545 Bad Oeynhausen, Germany.

出版信息

Genes (Basel). 2021 Jun 8;12(6):883. doi: 10.3390/genes12060883.

DOI:10.3390/genes12060883
PMID:34201072
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8228627/
Abstract

A major cause of heart failure is cardiomyopathies, with dilated cardiomyopathy (DCM) as the most common form. Over 40 genes are linked to DCM, among them and . Next Generation Sequencing in clinical DCM cohorts revealed truncating variants in (tv), accounting for up to 25% of familial DCM cases. Mutations in the cardiac splicing factor RNA binding motif protein 20 () are also known to be associated with severe cardiomyopathies. is one of the major splicing targets. Most of the pathogenic mutations are localized in the highly conserved arginine serine rich domain (RS), leading to a cytoplasmic mislocalization of mutant . Here, we present a patient with an early onset DCM carrying a combination of (likely) pathogenic and mutations. We show that the splicing of target genes is affected in the mutation carrier. Furthermore, we reveal haploinsufficiency presumably caused by the frameshift mutation in .

摘要

心力衰竭的一个主要原因是心肌病,其中扩张型心肌病(DCM)最为常见。超过 40 个基因与 DCM 相关,其中 和 。在临床 DCM 队列的下一代测序中,发现截断变异在 (tv)中,占家族性 DCM 病例的高达 25%。心脏剪接因子 RNA 结合基序蛋白 20()中的突变也与严重的心肌病有关。 是主要的 剪接靶标之一。大多数致病性 突变定位于高度保守的精氨酸丝氨酸丰富域(RS),导致突变体的细胞质定位错误。在这里,我们介绍了一位携带(可能)致病性 和 突变的早发性 DCM 患者。我们表明,突变携带者的 靶基因剪接受到影响。此外,我们揭示了 杂合不足,可能是由 中的移码突变引起的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/1b8fa9071483/genes-12-00883-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/5f8fbbf6d4fe/genes-12-00883-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/0a7adb009077/genes-12-00883-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/7be31204f945/genes-12-00883-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/38604d79d5e0/genes-12-00883-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/1b8fa9071483/genes-12-00883-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/5f8fbbf6d4fe/genes-12-00883-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/0a7adb009077/genes-12-00883-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/7be31204f945/genes-12-00883-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/38604d79d5e0/genes-12-00883-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f676/8228627/1b8fa9071483/genes-12-00883-g005.jpg

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Distinct Myocardial Transcriptomic Profiles of Cardiomyopathies Stratified by the Mutant Genes.不同基因突变导致的心肌病的心肌转录组特征明显不同。
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