B and T cell phenotypic profiles of African HIV-infected and HIV-exposed uninfected infants: associations with antibody responses to the pentavalent rotavirus vaccine

Citation: Weinberg A, Lindsey J, Bosch R, Persaud D, Sato P, Ogwu A, Asmelash A, Bwakura-Dangarambezi M, Chi BH, Canniff J, Lockman S, Simani G, Sikhuilile M, Smith CE, Moraka NO and Levin MJ. B and T cell phenotypic profiles of African HIV-infected and HIV-exposed uninfected infants: associations with antibody responses to the pentavalent rotavirus vaccine. Front Immunol. 2018 Jan 19;8:2002. PMID: 29403482; PMCID: PMC5780413

Access full article:

https://www.ncbi.nlm.nih.gov/pubmed/29403482

We examined associations between B and T cell phenotypic profiles and antibody responses to the pentavalent rotavirus vaccine (RV5) in perinatally HIV-infected (PHIV) infants on antiretroviral therapy and in HIV-exposed uninfected (PHEU) infants enrolled in International Maternal Pediatric Adolescent AIDS Clinical Trials P1072 study (NCT00880698). Of 17 B and T cell subsets analyzed, PHIV and PHEU differed only in the number of CD4+ T cells and frequency of naive B cells, which were higher in PHEU than in PHIV. In contrast, the B and T cell phenotypic profiles of PHIV and PHEU markedly differed from those of geographically matched contemporary HIV-unexposed infants. The frequency of regulatory T and B cells (Treg, Breg) of PHIV and PHEU displayed two patterns of associations: FOXP3+ CD25+ Treg positively correlated with CD4+ T cell numbers; while TGFβ+ Treg and IL10+ Treg and Breg positively correlated with the frequencies of inflammatory and activated T cells. Moreover, the frequencies of activated and inflammatory T cells of PHIV and PHEU positively correlated with the frequency of immature B cells. Correlations were not affected by HIV status and persisted over time. PHIV and PHEU antibody responses to RV5 positively correlated with CD4+ T cell counts and negatively with the proportion of immature B cells, similarly to what has been previously described in chronic HIV infection. Unique to PHIV and PHEU, anti-RV5 antibodies positively correlated with CD4+/CD8+FOXP3+CD25+% and negatively with CD4+IL10+% Tregs. In conclusion, PHEU shared with PHIV abnormal B and T cell phenotypic profiles. PHIV and PHEU antibody responses to RV5 were modulated by typical HIV-associated immune response modifiers except for the association between CD4+/CD8+FOXP3+CD25+Treg and increased antibody production.

Categories

CRS
Topics

Clinical Trials

A5322: Long-Term Follow-up of Older HIV-infected Adults in...

The A5322 protocol is a long-term observational study, with a planned series of analyses of data to be collected from an...

Read More

Impact of Tuberculosis Infection on HIV-1 Antibody Response...

Study Objective: Compare longitudinal HIV-1 antibody responses among HIV-1 infected participants that either did or did not...

Read More

ACTIV-2/A5401: Adaptive Platform Treatment for Outpatients...

Rationale: There is an urgent need for a platform to rapidly evaluate therapies in the outpatient setting, to prevent disease...

Read More

P2001 (DAIDS ID 12026): Evaluating the Pharmacokinetics,...

TB is a major cause of illness and death in women of reproductive age. Pregnant and postpartum women with latent TB are at...

Read More

A5327: Sofosbuvir + Ribavirin w/o Interferon for Treatment...

A5327 SWIFT-C is a Phase I, open-label, two-cohort clinical trial, in which between 44 and 50 acutely HCV-infected HIV-1...

Read More