Article ; Online: Sequence similarity of HSP65 of Mycobacterium bovis BCG with SARS-CoV-2 spike and nuclear proteins: may it predict an antigen-dependent immune protection of BCG against COVID-19?
2021 Volume 27, Issue 1, Page(s) 37–43
Abstract: The Bacillus Calmette-Guérin (BCG) vaccine is known to have protective effects not only against tuberculosis but also against other unrelated infectious diseases caused by different pathogens. Several epidemiological studies have also documented the ... ...
Abstract | The Bacillus Calmette-Guérin (BCG) vaccine is known to have protective effects not only against tuberculosis but also against other unrelated infectious diseases caused by different pathogens. Several epidemiological studies have also documented the beneficial influence of BCG vaccine in reducing both susceptibility to and severity of SARS-CoV-2 infection. The protective, non-specific effects of BCG vaccination would be related to an antigen-independent enhancement of the innate immunity, termed trained immunity. However, the knowledge that heat shock protein (HSP)65 is the main antigen of Mycobacterium bovis BCG prompted us to verify whether sequence similarity existed between HSP65 and SARS-CoV-2 spike (S) and nuclear (N) proteins that could support an antigen-driven immune protection of BCG vaccine. The results of the in silico investigation showed an extensive sequence similarity of HSP65 with both the viral proteins, especially SARS-CoV-2 S, that also involved the regions comprising immunodominant epitopes. The finding that the predicted B cell and CD4 |
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MeSH term(s) | BCG Vaccine/immunology ; BCG Vaccine/pharmacology ; COVID-19/immunology ; COVID-19/prevention & control ; Heat-Shock Proteins/immunology ; Humans ; Immunity, Innate/immunology ; Mycobacterium bovis/immunology ; Mycobacterium bovis/virology ; Nuclear Proteins/immunology ; SARS-CoV-2/immunology |
Chemical Substances | BCG Vaccine ; Heat-Shock Proteins ; Nuclear Proteins ; heat-shock protein 65, human |
Language | English |
Publishing date | 2021-11-09 |
Publishing country | Netherlands |
Document type | Journal Article |
ZDB-ID | 1362749-1 |
ISSN | 1466-1268 ; 1355-8145 |
ISSN (online) | 1466-1268 |
ISSN | 1355-8145 |
DOI | 10.1007/s12192-021-01244-y |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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