Immune Evasion of SARS-CoV-2 Omicron Subvariants

Since the SARS-CoV-2 Omicron variant (B.1.1.529) was declared a variant of concern (VOC) by the WHO on 24 November 2021, it has caused another global surge of cases. With extensive mutations in its spike glycoprotein, Omicron gained substantial capabilities to evade the antiviral immunity provided b...

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Main Authors: Hanzhong Ke, Matthew R. Chang, Wayne A. Marasco
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/10/9/1545
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author Hanzhong Ke
Matthew R. Chang
Wayne A. Marasco
author_facet Hanzhong Ke
Matthew R. Chang
Wayne A. Marasco
author_sort Hanzhong Ke
collection DOAJ
description Since the SARS-CoV-2 Omicron variant (B.1.1.529) was declared a variant of concern (VOC) by the WHO on 24 November 2021, it has caused another global surge of cases. With extensive mutations in its spike glycoprotein, Omicron gained substantial capabilities to evade the antiviral immunity provided by vaccination, hybrid immunity, or monoclonal antibodies. The Omicron subvariants BA.1, BA.2, BA.2.12.1, BA.4 and BA.5 extended this immune evasion capability by having additional unique mutations in their respective spike proteins. The ongoing Omicron wave and emergence of new Omicron subvariants leads to additional concerns regarding the efficacy of the current antiviral measurements. To have a better understanding of the Omicron subvariants, this review summarizes reports of the immune evasion of subvariants BA.1, BA.2, BA.2.12.1, BA.4, and BA.5 as well as the molecular basis of immune evasion.
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spelling doaj.art-776eeb3474cd44be9377d6dec27ca1d42023-11-23T19:22:58ZengMDPI AGVaccines2076-393X2022-09-01109154510.3390/vaccines10091545Immune Evasion of SARS-CoV-2 Omicron SubvariantsHanzhong Ke0Matthew R. Chang1Wayne A. Marasco2Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USADepartment of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USADepartment of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USASince the SARS-CoV-2 Omicron variant (B.1.1.529) was declared a variant of concern (VOC) by the WHO on 24 November 2021, it has caused another global surge of cases. With extensive mutations in its spike glycoprotein, Omicron gained substantial capabilities to evade the antiviral immunity provided by vaccination, hybrid immunity, or monoclonal antibodies. The Omicron subvariants BA.1, BA.2, BA.2.12.1, BA.4 and BA.5 extended this immune evasion capability by having additional unique mutations in their respective spike proteins. The ongoing Omicron wave and emergence of new Omicron subvariants leads to additional concerns regarding the efficacy of the current antiviral measurements. To have a better understanding of the Omicron subvariants, this review summarizes reports of the immune evasion of subvariants BA.1, BA.2, BA.2.12.1, BA.4, and BA.5 as well as the molecular basis of immune evasion.https://www.mdpi.com/2076-393X/10/9/1545SARS-CoV-2OmicronOmicron subvariantsimmune evasionspike mutationmolecular basis
spellingShingle Hanzhong Ke
Matthew R. Chang
Wayne A. Marasco
Immune Evasion of SARS-CoV-2 Omicron Subvariants
Vaccines
SARS-CoV-2
Omicron
Omicron subvariants
immune evasion
spike mutation
molecular basis
title Immune Evasion of SARS-CoV-2 Omicron Subvariants
title_full Immune Evasion of SARS-CoV-2 Omicron Subvariants
title_fullStr Immune Evasion of SARS-CoV-2 Omicron Subvariants
title_full_unstemmed Immune Evasion of SARS-CoV-2 Omicron Subvariants
title_short Immune Evasion of SARS-CoV-2 Omicron Subvariants
title_sort immune evasion of sars cov 2 omicron subvariants
topic SARS-CoV-2
Omicron
Omicron subvariants
immune evasion
spike mutation
molecular basis
url https://www.mdpi.com/2076-393X/10/9/1545
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