Role of genetics in amyotrophic lateral sclerosis : a large cohort study in Chinese mainland population

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BACKGROUND: A large number of new causative and risk genes for amyotrophic lateral sclerosis (ALS) have been identified mostly in patients of European ancestry. In contrast, we know relatively little regarding the genetics of ALS in other ethnic populations. This study aims to provide a comprehensive analysis of the genetics of ALS in an unprecedented large cohort of Chinese mainland population and correlate with the clinical features of rare variants carriers.

METHODS: A total of 1587 patients, including 64 familial ALS (FALS) and 1523 sporadic ALS (SALS), and 1866 in-house controls were analysed by whole-exome sequencing and/or testing for G4C2 repeats in C9orf72. Forty-one ALS-associated genes were analysed.

FINDINGS: 155 patients, including 26 (40.6%) FALS and 129 (8.5%) SALS, carrying rare pathogenic/likely pathogenic (P/LP) variants of ALS causative genes were identified. SOD1 was the most common mutated gene, followed by C9orf72, FUS, NEK1, TARDBP and TBK1. By burden analysis, rare variants in SOD1, FUS and TARDBP contributed to the collective risk for ALS (p<2.5e-6) at the gene level, but at the allelic level TARDBP p.Gly294Val and FUS p.Arg521Cys and p.Arg521His were the most important single variants causing ALS. Clinically, P/LP variants in TARDBP and C9orf72 were associated with poor prognosis, in FUS linked with younger age of onset, and C9orf72 repeats tended to affect cognition.

CONCLUSIONS: Our data provide essential information for understanding the genetic and clinical features of ALS in China and for optimal design of genetic testing and evaluation of disease prognosis.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:59

Enthalten in:

Journal of medical genetics - 59(2022), 9 vom: 03. Sept., Seite 840-849

Sprache:

Englisch

Beteiligte Personen:

Chen, Yong-Ping [VerfasserIn]
Yu, Shi-Hui [VerfasserIn]
Wei, Qian-Qian [VerfasserIn]
Cao, Bei [VerfasserIn]
Gu, Xiao-Jing [VerfasserIn]
Chen, Xue-Ping [VerfasserIn]
Song, Wei [VerfasserIn]
Zhao, Bi [VerfasserIn]
Wu, Ying [VerfasserIn]
Sun, Ming-Ming [VerfasserIn]
Liu, Fei-Fei [VerfasserIn]
Hou, Yan-Bing [VerfasserIn]
Ou, Ru-Wei [VerfasserIn]
Zhang, Ling-Yu [VerfasserIn]
Liu, Kun-Cheng [VerfasserIn]
Lin, Jun-Yu [VerfasserIn]
Xu, Xin-Ran [VerfasserIn]
Li, Chun-Yu [VerfasserIn]
Yang, Jing [VerfasserIn]
Jiang, Zheng [VerfasserIn]
Liu, Jiao [VerfasserIn]
Cheng, Yang-Fan [VerfasserIn]
Xiao, Yi [VerfasserIn]
Chen, Ke [VerfasserIn]
Feng, Fei [VerfasserIn]
Cai, Ying-Ying [VerfasserIn]
Li, Shi-Rong [VerfasserIn]
Hu, Tao [VerfasserIn]
Yuan, Xiao-Qin [VerfasserIn]
Guo, Xiao-Yan [VerfasserIn]
Liu, Hui [VerfasserIn]
Han, Qing [VerfasserIn]
Zhou, Qing-Qing [VerfasserIn]
Shao, Na [VerfasserIn]
Li, Jian-Peng [VerfasserIn]
Pan, Ping-Lei [VerfasserIn]
Ma, Sha [VerfasserIn]
Shang, Hui-Fang [VerfasserIn]

Links:

Volltext

Themen:

C9orf72 Protein
EC 1.15.1.1
Genetic variation
Genetics
Journal Article
Medical
Neurodegenerative diseases
Research Support, Non-U.S. Gov't
Superoxide Dismutase-1

Anmerkungen:

Date Completed 23.08.2022

Date Revised 22.12.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1136/jmedgenet-2021-107965

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM330867105