Coordinate Induction of Humoral and Spike Specific T-Cell Response in a Cohort of Italian Health Care Workers Receiving BNT162b2 mRNA Vaccine

Vaccination is the main public health measure to reduce SARS-CoV-2 transmission and hospitalization, and a massive worldwide scientific effort resulted in the rapid development of effective vaccines. This work aimed to define the dynamics of humoral and cell-mediated immune response in a cohort of health care workers (HCWs) who received a two-dose BNT162b2-mRNA vaccination. The serological response was evaluated by quantifying the anti-RBD and neutralizing antibodies. The cell-mediated response was performed by a whole blood test quantifying Th1 cytokines (IFN-γ, TNF-α, IL-2), produced in response to spike peptides. The BNT162b2-mRNA vaccine induced both humoral and cell-mediated immune responses against spike peptides in virtually all HCWs without previous SARS-CoV-2 infection, with a moderate inverse relation with age in the anti-RBD response. Spike-specific T cells produced several Th1 cytokines (IFN-γ, TNF-α, and IL-2), which correlated with the specific-serological response. Overall, our study describes the ability of the BNT162b2 mRNA vaccine to elicit a coordinated neutralizing humoral and spike-specific T cell response in HCWs. Assessing the dynamics of these parameters by an easy immune monitoring protocol can allow for the evaluation of the persistence of the vaccine response in order to define the optimal vaccination strategy.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:9

Enthalten in:

Microorganisms - 9(2021), 6 vom: 16. Juni

Sprache:

Englisch

Beteiligte Personen:

Agrati, Chiara [VerfasserIn]
Castilletti, Concetta [VerfasserIn]
Goletti, Delia [VerfasserIn]
Meschi, Silvia [VerfasserIn]
Sacchi, Alessandra [VerfasserIn]
Matusali, Giulia [VerfasserIn]
Bordoni, Veronica [VerfasserIn]
Petrone, Linda [VerfasserIn]
Lapa, Daniele [VerfasserIn]
Notari, Stefania [VerfasserIn]
Vanini, Valentina [VerfasserIn]
Colavita, Francesca [VerfasserIn]
Aiello, Alessandra [VerfasserIn]
Agresta, Alessandro [VerfasserIn]
Farroni, Chiara [VerfasserIn]
Grassi, Germana [VerfasserIn]
Leone, Sara [VerfasserIn]
Vaia, Francesco [VerfasserIn]
Capobianchi, Maria Rosaria [VerfasserIn]
Ippolito, Giuseppe [VerfasserIn]
Puro, Vincenzo [VerfasserIn]
On Behalf Of The Inmi Covid-Vaccine Study Group [VerfasserIn]

Links:

Volltext

Themen:

Coordinate immunity
Health care workers
Journal Article
MRNA vaccine
SARS-CoV2
Whole blood T cell assay

Anmerkungen:

Date Revised 14.07.2021

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/microorganisms9061315

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM327554681