Sterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative

Six months after the publication of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) sequence, a record number of vaccine candidates were listed, and quite a number of them have since been approved for emergency use against the novel coronavirus disease 2019 (COVID-19). This unpreced...

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Autores principales: Isaac Kyei-Barffour, Samuel Akwetey Addo, Enoch Aninagyei, George Ghartey-Kwansah, Desmond Omane Acheampong
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Publicado: Elsevier 2021
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spelling oai:doaj.org-article:bf7b697a21b34619b8042c67ff89a0922021-11-14T04:29:12ZSterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative0753-332210.1016/j.biopha.2021.112282https://doaj.org/article/bf7b697a21b34619b8042c67ff89a0922021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0753332221010660https://doaj.org/toc/0753-3322Six months after the publication of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) sequence, a record number of vaccine candidates were listed, and quite a number of them have since been approved for emergency use against the novel coronavirus disease 2019 (COVID-19). This unprecedented pharmaceutical feat did not only show commitment, creativity and collaboration of the scientific community, but also provided a swift solution that prevented global healthcare system breakdown. Notwithstanding, the available data show that most of the approved COVID-19 vaccines protect only a proportion of recipients against severe disease but do not prevent clinical manifestation of COVID-19. There is therefore the need to probe further to establish whether these vaccines can induce sterilizing immunity, otherwise, COVID-19 vaccination would have to become a regular phenomenon. The emergence of SARS-CoV-2 variants could further affect the capability of the available COVID-19 vaccines to prevent infection and protect recipients from a severe form of the disease. These notwithstanding, data about which vaccine(s), if any, can confer sterilizing immunity are unavailable. Here, we discuss the immune responses to viral infection with emphasis on COVID-19, and the specific adaptive immune response to SARS-CoV-2 and how it can be harnessed to develop COVID-19 vaccines capable of conferring sterilizing immunity. We further propose factors that could be considered in the development of COVID-19 vaccines capable of stimulating sterilizing immunity. Also, an old, but effective vaccine development technology that can be applied in the development of COVID-19 vaccines with sterilizing immunity potential is reviewed.Isaac Kyei-BarffourSamuel Akwetey AddoEnoch AninagyeiGeorge Ghartey-KwansahDesmond Omane AcheampongElsevierarticleSterilizing immunityAdaptive immune responseCOVID-19SARS-CoV-2AntigenReverse vaccinologyTherapeutics. PharmacologyRM1-950ENBiomedicine & Pharmacotherapy, Vol 144, Iss , Pp 112282- (2021)
institution DOAJ
collection DOAJ
language EN
topic Sterilizing immunity
Adaptive immune response
COVID-19
SARS-CoV-2
Antigen
Reverse vaccinology
Therapeutics. Pharmacology
RM1-950
spellingShingle Sterilizing immunity
Adaptive immune response
COVID-19
SARS-CoV-2
Antigen
Reverse vaccinology
Therapeutics. Pharmacology
RM1-950
Isaac Kyei-Barffour
Samuel Akwetey Addo
Enoch Aninagyei
George Ghartey-Kwansah
Desmond Omane Acheampong
Sterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative
description Six months after the publication of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) sequence, a record number of vaccine candidates were listed, and quite a number of them have since been approved for emergency use against the novel coronavirus disease 2019 (COVID-19). This unprecedented pharmaceutical feat did not only show commitment, creativity and collaboration of the scientific community, but also provided a swift solution that prevented global healthcare system breakdown. Notwithstanding, the available data show that most of the approved COVID-19 vaccines protect only a proportion of recipients against severe disease but do not prevent clinical manifestation of COVID-19. There is therefore the need to probe further to establish whether these vaccines can induce sterilizing immunity, otherwise, COVID-19 vaccination would have to become a regular phenomenon. The emergence of SARS-CoV-2 variants could further affect the capability of the available COVID-19 vaccines to prevent infection and protect recipients from a severe form of the disease. These notwithstanding, data about which vaccine(s), if any, can confer sterilizing immunity are unavailable. Here, we discuss the immune responses to viral infection with emphasis on COVID-19, and the specific adaptive immune response to SARS-CoV-2 and how it can be harnessed to develop COVID-19 vaccines capable of conferring sterilizing immunity. We further propose factors that could be considered in the development of COVID-19 vaccines capable of stimulating sterilizing immunity. Also, an old, but effective vaccine development technology that can be applied in the development of COVID-19 vaccines with sterilizing immunity potential is reviewed.
format article
author Isaac Kyei-Barffour
Samuel Akwetey Addo
Enoch Aninagyei
George Ghartey-Kwansah
Desmond Omane Acheampong
author_facet Isaac Kyei-Barffour
Samuel Akwetey Addo
Enoch Aninagyei
George Ghartey-Kwansah
Desmond Omane Acheampong
author_sort Isaac Kyei-Barffour
title Sterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative
title_short Sterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative
title_full Sterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative
title_fullStr Sterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative
title_full_unstemmed Sterilizing Immunity against COVID-19: Developing Helper T cells I and II activating vaccines is imperative
title_sort sterilizing immunity against covid-19: developing helper t cells i and ii activating vaccines is imperative
publisher Elsevier
publishDate 2021
url https://doaj.org/article/bf7b697a21b34619b8042c67ff89a092
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