Using bicistronic IL-4 reporter mice to identify IL-4 expressing cells following immunisation with aluminium adjuvant

Vaccine
Fiona McDonaldJames Brewer

Abstract

The Th2 dominated immune response induced by aluminium adjuvants remains a major limitation to their application to modern vaccines. Previous studies have shown that while these adjuvants can initiate Th2 responses in mice with disrupted IL-4 production or IL-4 signalling, a strong Th1 response becomes evident in these situations, suggesting that the main function of IL-4 in the response to aluminium adsorbed antigens is to antagonise Th1 induction. In this study we have employed the recently described, 4get reporter mice, that express GFP as part of a bicistronic IL-4-IRES-GFP mRNA, to identify IL-4 expressing cells in situ during an aluminium adjuvant-induced Th2 responses. These preliminary studies implicate conventional CD4+ T cells as the sole potential producers of IL-4 following immunisation with antigen prepared in aluminium adjuvants. Furthermore, as GFP positive cells are first detected in the lymph node, our studies indicate that these cells may act to block induction of Th1 responses by aluminium adjuvants. We conclude that devising strategies to block the effects of IL-4 production by these cells will facilitate the rational design of vaccine adjuvants that induce Th1 responses.

References

Mar 19, 1996·Proceedings of the National Academy of Sciences of the United States of America·A MondinoM K Jenkins
Aug 28, 2002·Immunity·Daniel B StetsonRichard M Locksley
Nov 5, 2002·Nature Reviews. Immunology·David Sacks, Nancy Noben-Trauth
Dec 4, 2002·Nature Reviews. Immunology·Kenneth M Murphy, Steven L Reiner
Sep 29, 2005·Immunology Letters·James M Brewer

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Citations

Dec 25, 2008·Annual Review of Immunology·Fernando O MartinezSiamon Gordon
Oct 13, 2007·Expert Review of Vaccines·Dorothea SesardicBrijesh Prakash Patel
Jan 22, 2015·Proceedings of the National Academy of Sciences of the United States of America·Jihyung LeeEyal Raz
Sep 8, 2009·The Journal of Immunology : Official Journal of the American Association of Immunologists·Amy S McKeePhilippa Marrack

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