Identification of Causal Genes of COVID-19 Using the SMR Method

Since the first report of COVID-19 in December 2019, more than 100 million people have been infected with SARS-CoV-2. Despite ongoing research, there is still limited knowledge about the genetic causes of COVID-19. To resolve this problem, we applied the SMR method to analyze the genes involved in C...

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Main Authors: Yan Zong, Xiaofei Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-07-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fgene.2021.690349/full
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author Yan Zong
Xiaofei Li
author_facet Yan Zong
Xiaofei Li
author_sort Yan Zong
collection DOAJ
description Since the first report of COVID-19 in December 2019, more than 100 million people have been infected with SARS-CoV-2. Despite ongoing research, there is still limited knowledge about the genetic causes of COVID-19. To resolve this problem, we applied the SMR method to analyze the genes involved in COVID-19 pathogenesis by the integration of multiple omics data. Here, we assessed the SNPs associated with COVID-19 risk from the GWAS data of Spanish and Italian patients and lung eQTL data from the GTEx project. Then, GWAS and eQTL data were integrated by summary-data-based (SMR) methods using SNPs as instrumental variables (IVs). As a result, six protein-coding and five non-protein-coding genes regulated by nine SNPs were identified as significant risk factors for COVID-19. Functional analysis of these genes showed that UQCRH participates in cardiac muscle contraction, PPA2 is closely related to sudden cardiac failure (SCD), and OGT, as the interacting gene partner of PANO1, is associated with neurological disease. Observational studies show that myocardial damage, SCD, and neurological disease often occur in COVID-19 patients. Thus, our findings provide a potential molecular mechanism for understanding the complications of COVID-19.
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spelling doaj.art-cf1168d744d24af697de1eb0c5a652792022-12-21T20:26:39ZengFrontiers Media S.A.Frontiers in Genetics1664-80212021-07-011210.3389/fgene.2021.690349690349Identification of Causal Genes of COVID-19 Using the SMR MethodYan ZongXiaofei LiSince the first report of COVID-19 in December 2019, more than 100 million people have been infected with SARS-CoV-2. Despite ongoing research, there is still limited knowledge about the genetic causes of COVID-19. To resolve this problem, we applied the SMR method to analyze the genes involved in COVID-19 pathogenesis by the integration of multiple omics data. Here, we assessed the SNPs associated with COVID-19 risk from the GWAS data of Spanish and Italian patients and lung eQTL data from the GTEx project. Then, GWAS and eQTL data were integrated by summary-data-based (SMR) methods using SNPs as instrumental variables (IVs). As a result, six protein-coding and five non-protein-coding genes regulated by nine SNPs were identified as significant risk factors for COVID-19. Functional analysis of these genes showed that UQCRH participates in cardiac muscle contraction, PPA2 is closely related to sudden cardiac failure (SCD), and OGT, as the interacting gene partner of PANO1, is associated with neurological disease. Observational studies show that myocardial damage, SCD, and neurological disease often occur in COVID-19 patients. Thus, our findings provide a potential molecular mechanism for understanding the complications of COVID-19.https://www.frontiersin.org/articles/10.3389/fgene.2021.690349/fullSMRCOVID-19eQTLGWASUQCRHPPA2
spellingShingle Yan Zong
Xiaofei Li
Identification of Causal Genes of COVID-19 Using the SMR Method
Frontiers in Genetics
SMR
COVID-19
eQTL
GWAS
UQCRH
PPA2
title Identification of Causal Genes of COVID-19 Using the SMR Method
title_full Identification of Causal Genes of COVID-19 Using the SMR Method
title_fullStr Identification of Causal Genes of COVID-19 Using the SMR Method
title_full_unstemmed Identification of Causal Genes of COVID-19 Using the SMR Method
title_short Identification of Causal Genes of COVID-19 Using the SMR Method
title_sort identification of causal genes of covid 19 using the smr method
topic SMR
COVID-19
eQTL
GWAS
UQCRH
PPA2
url https://www.frontiersin.org/articles/10.3389/fgene.2021.690349/full
work_keys_str_mv AT yanzong identificationofcausalgenesofcovid19usingthesmrmethod
AT xiaofeili identificationofcausalgenesofcovid19usingthesmrmethod