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Neonatal bacillus Calmette-Guérin vaccination induces adult-like IFN-gamma production by CD4+ T lymphocytes

journal contribution
posted on 2023-06-08, 17:10 authored by Johan Vekemans, Amedeo Amedei, Martin O Ota, Mario M D'Elios, Tessa Goetghebuer, Jamila Ismaili, Melanie NewportMelanie Newport, Gianfranco Del Prete, Michel Goldman, Keith P W J McAdam, Arnaud Marchant
The immaturity of the neonatal immune system in mice is associated with defective IFN-gamma production and Th2-biased immune responses. In this study, infants vaccinated at birth with BCG produced similar concentrations of IFN-gamma in response to PPD and showed similar frequencies of IFN-gamma-producing lymphocytes as compared to immune adults. Infants and adults produced only low concentrations of IL-4 and IL-5. CD4+ T lymphocytes were the main source of IFN-gamma. Similar proportions of Th1 and Th0 PPD-specific T cell clones were observed in infants and adults. This study demonstrates that the human neonatal immune response to BCG is not biased towards Th2 and is characterized by the predominant production of IFN-gamma by CD4+ T lymphocytes.

History

Publication status

  • Published

Journal

European Journal of Immunology

ISSN

0014-2980

Publisher

John Wiley & Sons

Issue

5

Volume

31

Page range

1531-1535

Department affiliated with

  • Global Health and Infection Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2014-05-08

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