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<p>Despite evidence of varying vaccine effectiveness, T cell responses to rotavirus (RV) vaccines remain incompletely studied. To address this research gap, RV-specific T cells in the blood of infants pre- and post-monovalent RV vaccination (RV1) were analyzed for memory recall and functionality using RV-specific peptide pool stimulation. We find that RV vaccine elicits heterogenous responses with respect to cellular and humoral immunity. T cell responses to RV vaccine are detectable in the periphery, though poorly functional. Vaccination induces Th2-biased conventional effector memory and central memory CD4 + T cells, as suggested by chemokine receptor profiles, though the response wanes by 8 months post vaccination. The presence of preexisting immunity results in no significant increase in either RV-specific IgA or T cells after vaccination. Our data provides the first in-depth assessment of RV-specific T cell responses induced by vaccine, demonstrating patterns of negative and positive association with response that may play a role in protection against rotavirus disease.</p>

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Peripheral rotavirus-specific T-cell responses following monovalent oral rotavirus vaccine in infants

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月5日

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  • Alexander R. Nicols,
  • Yesun Lee,
  • Zion Congrave-Wilson,
  • Minjun Kim,
  • Wesley A. Cheng,
  • Jaycee Jumarang,
  • Jocelyn Navarro,
  • Rafaella Navarro,
  • Yamile Rodriguez-Angeles,
  • David Durand,
  • Zackary W. Taylor,
  • Ruth G. De León,
  • Theresa J. Ochoa,
  • Alessandro Sette,
  • Ricardo da Silva Antunes,
  • Pia S. Pannaraj

摘要

Despite evidence of varying vaccine effectiveness, T cell responses to rotavirus (RV) vaccines remain incompletely studied. To address this research gap, RV-specific T cells in the blood of infants pre- and post-monovalent RV vaccination (RV1) were analyzed for memory recall and functionality using RV-specific peptide pool stimulation. We find that RV vaccine elicits heterogenous responses with respect to cellular and humoral immunity. T cell responses to RV vaccine are detectable in the periphery, though poorly functional. Vaccination induces Th2-biased conventional effector memory and central memory CD4 + T cells, as suggested by chemokine receptor profiles, though the response wanes by 8 months post vaccination. The presence of preexisting immunity results in no significant increase in either RV-specific IgA or T cells after vaccination. Our data provides the first in-depth assessment of RV-specific T cell responses induced by vaccine, demonstrating patterns of negative and positive association with response that may play a role in protection against rotavirus disease.