T-Cell Responses after Rotavirus Infection or Vaccination in Children: A Systematic Review.

Natasha Makabilo Laban ORCID logo; Martin Rhys Goodier ORCID logo; Samuel Bosomprah; Michelo Simuyandi; Caroline Chisenga; Obvious Nchimunya Chilyabanyama ORCID logo; Roma Chilengi; (2022) T-Cell Responses after Rotavirus Infection or Vaccination in Children: A Systematic Review. VIRUSES-BASEL, 14 (3). p. 459. ISSN 1999-4915 DOI: 10.3390/v14030459
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Cellular immunity against rotavirus in children is incompletely understood. This review describes the current understanding of T-cell immunity to rotavirus in children. A systematic literature search was conducted in Embase, MEDLINE, Web of Science, and Global Health databases using a combination of "t-cell", "rotavirus" and "child" keywords to extract data from relevant articles published from January 1973 to March 2020. Only seventeen articles were identified. Rotavirus-specific T-cell immunity in children develops and broadens reactivity with increasing age. Whilst occurring in close association with antibody responses, T-cell responses are more transient but can occur in absence of detectable antibody responses. Rotavirus-induced T-cell immunity is largely of the gut homing phenotype and predominantly involves Th1 and cytotoxic subsets that may be influenced by IL-10 Tregs. However, rotavirus-specific T-cell responses in children are generally of low frequencies in peripheral blood and are limited in comparison to other infecting pathogens and in adults. The available research reviewed here characterizes the T-cell immune response in children. There is a need for further research investigating the protective associations of rotavirus-specific T-cell responses against infection or vaccination and the standardization of rotavirus-specific T-cells assays in children.


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