학술논문

Pre-existing humoral immunity to human common cold coronaviruses negatively impacts the protective SARS-CoV-2 antibody response
Document Type
article
Source
Cell Host & Microbe. 30(1)
Subject
Medical Microbiology
Biomedical and Clinical Sciences
Pneumonia & Influenza
Biodefense
Biotechnology
Lung
Immunization
Pneumonia
Prevention
Vaccine Related
Emerging Infectious Diseases
Infectious Diseases
Aetiology
2.1 Biological and endogenous factors
Infection
Good Health and Well Being
Animals
Antibodies
Viral
Antibody Formation
Asymptomatic Infections
COVID-19
Case-Control Studies
Cell Line
Common Cold
Cross Reactions
Female
HEK293 Cells
Humans
Immunity
Humoral
Mice
Mice
Inbred C57BL
SARS-CoV-2
Spike Glycoprotein
Coronavirus
SJTRC Study Team
229E
HKU1
NL63
OC43
antibody
pre-existing immunity
Microbiology
Immunology
Biochemistry and cell biology
Medical microbiology
Language
Abstract
SARS-CoV-2 infection causes diverse outcomes ranging from asymptomatic infection to respiratory distress and death. A major unresolved question is whether prior immunity to endemic, human common cold coronaviruses (hCCCoVs) impacts susceptibility to SARS-CoV-2 infection or immunity following infection and vaccination. Therefore, we analyzed samples from the same individuals before and after SARS-CoV-2 infection or vaccination. We found hCCCoV antibody levels increase after SARS-CoV-2 exposure, demonstrating cross-reactivity. However, a case-control study indicates that baseline hCCCoV antibody levels are not associated with protection against SARS-CoV-2 infection. Rather, higher magnitudes of pre-existing betacoronavirus antibodies correlate with more SARS-CoV-2 antibodies following infection, an indicator of greater disease severity. Additionally, immunization with hCCCoV spike proteins before SARS-CoV-2 immunization impedes the generation of SARS-CoV-2-neutralizing antibodies in mice. Together, these data suggest that pre-existing hCCCoV antibodies hinder SARS-CoV-2 antibody-based immunity following infection and provide insight on how pre-existing coronavirus immunity impacts SARS-CoV-2 infection, which is critical considering emerging variants.