Hybrid and SARS-CoV-2-vaccine immunity in kidney transplant recipients

Copyright © 2023 The Author(s). Published by Elsevier B.V. All rights reserved..

BACKGROUND: Kidney transplant recipients (KTR) are at high risk for severe COVID-19 and have demonstrated poor response to vaccination, making it unclear whether successive vaccinations offer immunity and protection.

METHODS: We conducted a serologically guided interventional study where KTR patients that failed to seroconvert were revaccinated and also monitored seroconversion of KTR following the Norwegian vaccination program. We analysed IgG anti-RBD Spike responses from dose 2 (n = 432) up to after the 6th (n = 37) mRNA vaccine dose. The frequency and phenotype of Spike-specific T and B cell responses were assessed in the interventional cohort after 3-4 vaccine doses (n = 30). Additionally, we evaluated the Specific T and B cell response to breakthrough infection (n = 32), measured inflammatory cytokines and broadly cross-neutralizing antibodies, and defined the incidence of COVID-19-related hospitalizations and deaths. The Norwegian KTR cohort has a male dominance (2323 males, 1297 females), PBMC were collected from 114 male and 78 female donors.

FINDINGS: After vaccine dose 3, most KTR developed Spike-specific T cell responses but had significantly reduced Spike-binding B cells and few memory cells. The B cell response included a cross-reactive subset that could bind Omicron VOC, which expanded after breakthrough infection (BTI) and gave rise to a memory IgG+ B cell response. After BTI, KTR had increased Spike-specific T cells, emergent non-Spike T and B cell responses, and a systemic inflammatory signature. Late seroconversion occurred after doses 5-6, but 38% (14/37) of KTR had no detectable immunity even after multiple vaccine doses.

INTERPRETATION: Boosting vaccination can induce Spike-specific immunity that may expand in breakthrough infections highlighting the benefit of vaccination to protect this vulnerable population.

FUNDING: CEPI and internal funds.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:97

Enthalten in:

EBioMedicine - 97(2023) vom: 14. Nov., Seite 104833

Sprache:

Englisch

Beteiligte Personen:

Kared, Hassen [VerfasserIn]
Alirezaylavasani, Amin [VerfasserIn]
Lund, Katrine Persgård [VerfasserIn]
Chopra, Adity [VerfasserIn]
Tietze, Lisa [VerfasserIn]
de Matos Kasahara, Taissa [VerfasserIn]
Goll, Guro Løvik [VerfasserIn]
Grødeland, Gunnveig [VerfasserIn]
Kaarbø, Mari [VerfasserIn]
Reisæter, Anna Varberg [VerfasserIn]
Hovd, Markus [VerfasserIn]
Heldal, Kristian [VerfasserIn]
Vaage, John Torgils [VerfasserIn]
Lund-Johansen, Fridtjof [VerfasserIn]
Midtvedt, Karsten [VerfasserIn]
Åsberg, Anders [VerfasserIn]
Munthe, Ludvig A [VerfasserIn]

Links:

Volltext

Themen:

Anti-viral T and B cell immunity
Antibodies, Viral
B cell differentiation and immunity
COVID-19 Vaccines
COVID-19 vaccination
Immunoglobulin G
Journal Article
Kidney transplant recipients
T cell responses

Anmerkungen:

Date Completed 13.11.2023

Date Revised 13.11.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ebiom.2023.104833

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM363373047