Utility of accessible SARS-CoV-2 specific immunoassays in vaccinated adults with a history of advanced HIV infection

© 2024. The Author(s)..

Accessible SARS-CoV-2-specific immunoassays may inform clinical management in people with HIV, particularly in case of persisting immunodysfunction. We prospectively studied their application in vaccine recipients with HIV, purposely including participants with a history of advanced HIV infection. Participants received one (n = 250), two (n = 249) or three (n = 42) doses of the BNT162b2 vaccine. Adverse events were documented through questionnaires. Sample collection occurred pre-vaccination and a median of 4 weeks post-second dose and 14 weeks post-third dose. Anti-spike and anti-nucleocapsid antibodies were measured with the Roche Elecsys chemiluminescence immunoassays. Neutralising activity was evaluated using the GenScript cPass surrogate virus neutralisation test, following validation against a Plaque Reduction Neutralization Test. T-cell reactivity was assessed with the Roche SARS-CoV-2 IFNγ release assay. Primary vaccination (2 doses) was well tolerated and elicited measurable anti-spike antibodies in 202/206 (98.0%) participants. Anti-spike titres varied widely, influenced by previous SARS-CoV-2 exposure, ethnicity, intravenous drug use, CD4 counts and HIV viremia as independent predictors. A third vaccine dose significantly boosted anti-spike and neutralising responses, reducing variability. Anti-spike titres > 15 U/mL correlated with neutralising activity in 136/144 paired samples (94.4%). Three participants with detectable anti-S antibodies did not develop cPass neutralising responses post-third dose, yet displayed SARS-CoV-2 specific IFNγ responses. SARS-CoV-2 vaccination is well-tolerated and immunogenic in adults with HIV, with responses improving post-third dose. Anti-spike antibodies serve as a reliable indicator of neutralising activity. Discordances between anti-spike and neutralising responses were accompanied by detectable IFN-γ responses, underlining the complexity of the immune response in this population.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:14

Enthalten in:

Scientific reports - 14(2024), 1 vom: 09. Apr., Seite 8337

Sprache:

Englisch

Beteiligte Personen:

Ferrari, Ludovica [VerfasserIn]
Ruggiero, Alessandra [VerfasserIn]
Stefani, Chiara [VerfasserIn]
Benedetti, Livia [VerfasserIn]
Piermatteo, Lorenzo [VerfasserIn]
Andreassi, Eleonora [VerfasserIn]
Caldara, Federica [VerfasserIn]
Zace, Drieda [VerfasserIn]
Pagliari, Matteo [VerfasserIn]
Ceccherini-Silberstein, Francesca [VerfasserIn]
Jones, Christopher [VerfasserIn]
Iannetta, Marco [VerfasserIn]
Geretti, Anna Maria [VerfasserIn]
EVAN-COV Study Group [VerfasserIn]
Ansaldo, Lorenzo [Sonstige Person]
Bertoli, Ada [Sonstige Person]
Bonfante, Francesco [Sonstige Person]
Braccialarghe, Neva [Sonstige Person]
Checchi, Davide [Sonstige Person]
Compagno, Mirko [Sonstige Person]
De Simone, Giuseppe [Sonstige Person]
Geretti, Anna Maria [Sonstige Person]
Grelli, Sandro [Sonstige Person]
Meloni, Diletta [Sonstige Person]
Mulas, Tiziana [Sonstige Person]
Piermatteo, Lorenzo [Sonstige Person]
Sarmati, Loredana [Sonstige Person]
Teti, Elisabetta [Sonstige Person]

Links:

Volltext

Themen:

Antibodies
Antibodies, Neutralizing
Antibodies, Viral
BNT162 Vaccine
COVID-19 Vaccines
Journal Article

Anmerkungen:

Date Completed 11.04.2024

Date Revised 12.04.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-024-58597-4

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370838009