Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA Sequencing

Cardiac injury is a common complication of coronavirus disease 2019 (COVID-19), but the exact mechanisms have not been completely elucidated. The virus receptors on subsets of cells are key determinants of susceptibility to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Due...

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Main Authors: Jie Ren, Yuze Zhang, Shishi Liu, Xiangjie Li, Xiaogang Sun
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-11-01
Series:Frontiers in Cardiovascular Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcvm.2021.757362/full
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author Jie Ren
Yuze Zhang
Shishi Liu
Xiangjie Li
Xiaogang Sun
author_facet Jie Ren
Yuze Zhang
Shishi Liu
Xiangjie Li
Xiaogang Sun
author_sort Jie Ren
collection DOAJ
description Cardiac injury is a common complication of coronavirus disease 2019 (COVID-19), but the exact mechanisms have not been completely elucidated. The virus receptors on subsets of cells are key determinants of susceptibility to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Due to its high sequence similarity to SARS-CoV, SARS-CoV-2 also utilizes ACE2 as the cell entry receptor. A growing number of studies have indicated that other receptors apart from ACE2 are involved in SARS-CoV-2 infection. This study aimed to elucidate the expression characteristics of SARS-CoV-2 cellular receptors in the heart. We first investigated ACE2 expression in a comprehensive transcriptional landscape of the human heart comprising single-nucleus RNA-seq (snRNA-seq) data for >280,000 cells. Then, the expression distributions of novel SARS-CoV-2 receptors were analyzed at the single-cell level to clarify the cardiovascular complications in COVID-19. We observed a higher percentage of ACE2-positive cells in pericytes (8.3%), fibroblasts (5.1%), and adipocytes (4.4%) in the human heart, compared to other cell types. The frequency of ACE2-positive cells in each cell type from the ventricles was significantly higher than that in the atria, suggesting that the ventricular cells are more susceptible to SARS-CoV-2 infection. The distribution patterns of other receptors (BSG, HSPA5, KREMEN1, NRP1, ANPEP, AXL) were significantly different from those of ACE2, demonstrating higher expression levels in ventricular cardiomyocytes. Moreover, our results suggest that fibroblasts and adipocytes, aside from pericytes, may be vulnerable targets for SARS-CoV-2 infection in the human heart. Our study presents potential targets for future clinical studies and interventions for cardiac injury in patients with COVID-19.
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spelling doaj.art-0afc088bbe1c485992451baec89afd342022-12-21T20:34:11ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2021-11-01810.3389/fcvm.2021.757362757362Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA SequencingJie Ren0Yuze Zhang1Shishi Liu2Xiangjie Li3Xiaogang Sun4Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaFuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaSchool of Statistics, Renmin University of China, Beijing, ChinaSchool of Statistics and Data Science, Nankai University, Tianjin, ChinaFuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, ChinaCardiac injury is a common complication of coronavirus disease 2019 (COVID-19), but the exact mechanisms have not been completely elucidated. The virus receptors on subsets of cells are key determinants of susceptibility to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Due to its high sequence similarity to SARS-CoV, SARS-CoV-2 also utilizes ACE2 as the cell entry receptor. A growing number of studies have indicated that other receptors apart from ACE2 are involved in SARS-CoV-2 infection. This study aimed to elucidate the expression characteristics of SARS-CoV-2 cellular receptors in the heart. We first investigated ACE2 expression in a comprehensive transcriptional landscape of the human heart comprising single-nucleus RNA-seq (snRNA-seq) data for >280,000 cells. Then, the expression distributions of novel SARS-CoV-2 receptors were analyzed at the single-cell level to clarify the cardiovascular complications in COVID-19. We observed a higher percentage of ACE2-positive cells in pericytes (8.3%), fibroblasts (5.1%), and adipocytes (4.4%) in the human heart, compared to other cell types. The frequency of ACE2-positive cells in each cell type from the ventricles was significantly higher than that in the atria, suggesting that the ventricular cells are more susceptible to SARS-CoV-2 infection. The distribution patterns of other receptors (BSG, HSPA5, KREMEN1, NRP1, ANPEP, AXL) were significantly different from those of ACE2, demonstrating higher expression levels in ventricular cardiomyocytes. Moreover, our results suggest that fibroblasts and adipocytes, aside from pericytes, may be vulnerable targets for SARS-CoV-2 infection in the human heart. Our study presents potential targets for future clinical studies and interventions for cardiac injury in patients with COVID-19.https://www.frontiersin.org/articles/10.3389/fcvm.2021.757362/fullSARS-CoV-2cardiac injurycellular receptorsACE2expression features
spellingShingle Jie Ren
Yuze Zhang
Shishi Liu
Xiangjie Li
Xiaogang Sun
Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA Sequencing
Frontiers in Cardiovascular Medicine
SARS-CoV-2
cardiac injury
cellular receptors
ACE2
expression features
title Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA Sequencing
title_full Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA Sequencing
title_fullStr Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA Sequencing
title_full_unstemmed Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA Sequencing
title_short Detailed Analyses of the Expression Patterns of Potential Severe Acute Respiratory Syndrome Coronavirus 2 Receptors in the Human Heart Using Single-Nucleus RNA Sequencing
title_sort detailed analyses of the expression patterns of potential severe acute respiratory syndrome coronavirus 2 receptors in the human heart using single nucleus rna sequencing
topic SARS-CoV-2
cardiac injury
cellular receptors
ACE2
expression features
url https://www.frontiersin.org/articles/10.3389/fcvm.2021.757362/full
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