• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

Clin Transl Immunology . A specific anti-COVID-19 BNT162b2 vaccine-induced early innate immune signature positively correlates with the humoral pro

tetano

Editor, Senior Moderator
Clin Transl Immunology


. 2023 Mar 23;12(3):e1434.
doi: 10.1002/cti2.1434. eCollection 2023.
A specific anti-COVID-19 BNT162b2 vaccine-induced early innate immune signature positively correlates with the humoral protective response in healthy and multiple sclerosis vaccine recipients


Martina Severa[SUP] 1 [/SUP], Fabiana Rizzo[SUP] 1 [/SUP], Alessandro Sinigaglia[SUP] 2 [/SUP], Daniela Ricci[SUP] 1 [/SUP], Marilena Paola Etna[SUP] 1 [/SUP], Gaia Cola[SUP] 3 [/SUP], Doriana Landi[SUP] 3 [/SUP], Maria Chiara Buscarinu[SUP] 4 [/SUP], Catia Valdarchi[SUP] 1 [/SUP], Giovanni Ristori[SUP] 4 5 [/SUP], Silvia Riccetti[SUP] 2 [/SUP], Chiara Piubelli[SUP] 6 [/SUP], Pierangela Palmerini[SUP] 7 [/SUP], Antonio Rosato[SUP] 7 8 [/SUP], Federico Gobbi[SUP] 6 [/SUP], Stefano Balducci[SUP] 9 [/SUP], Girolama Alessandra Marfia[SUP] 3 [/SUP], Marco Salvetti[SUP] 4 10 [/SUP], Luisa Barzon[SUP] 2 [/SUP], Eliana Marina Coccia[SUP] 1 [/SUP]



Affiliations

Abstract

Objectives: The very rapidly approved mRNA-based vaccines against SARS-CoV-2 spike glycoprotein, including Pfizer-BioNTech BNT162b2, are effective in protecting from severe coronavirus disease 2019 (COVID-19) in immunocompetent population. However, establishing the duration and identifying correlates of vaccine-induced protection will be crucial to optimise future immunisation strategies. Here, we studied in healthy vaccine recipients and people with multiple sclerosis (pwMS), undergoing different therapies, the regulation of innate immune response by mRNA vaccination in order to correlate it with the magnitude of vaccine-induced protective humoral responses.
Methods: Healthy subjects (n = 20) and matched pwMS (n = 22) were longitudinally sampled before and after mRNA vaccination. Peripheral blood mononuclear cell (PBMC)-associated type I and II interferon (IFN)-inducible gene expression, serum innate cytokine/chemokine profile as well as binding and neutralising anti-SARS-COV-2 antibodies (Abs) were measured.
Results: We identified an early immune module composed of the IFN-inducible genes Mx1, OAS1 and IRF1, the serum cytokines IL-15, IL-6, TNF-α and IFN-γ and the chemokines IP-10, MCP-1 and MIG, induced 1 day post second and third BNT162b2 vaccine doses, strongly correlating with magnitude of humoral response to vaccination in healthy and MS vaccinees. Moreover, induction of the early immune module was dramatically affected in pwMS treated with fingolimod and ocrelizumab, both groups unable to induce a protective humoral response to COVID-19 vaccine.
Conclusion: Overall, this study suggests that the vaccine-induced early regulation of innate immunity is mediated by IFN signalling, impacts on the magnitude of adaptive responses and it might be indicative of vaccine-induced humoral protection.

Keywords: SARS‐CoV‐2; humoral response; innate immunity; mRNA vaccine.
 
Back
Top Bottom