Format

Send to

Choose Destination
J Invest Dermatol. 2012 Mar;132(3 Pt 1):615-25. doi: 10.1038/jid.2011.346. Epub 2011 Dec 15.

Intradermal immunization triggers epidermal Langerhans cell mobilization required for CD8 T-cell immune responses.

Author information

1
Laboratory of Immunity and Infection, Institut National de la Santé et de la Recherche Médicale, INSERM UMR-S 945 and Université Pierre et Marie Curie, UPMC Univ Paris 06, Paris, France.

Abstract

The potential of the skin immune system for the generation of both powerful humoral and cellular immune responses is now well established. However, the mechanisms responsible for the efficacy of skin antigen-presenting cells (APCs) during intradermal (ID) vaccination still remain to be elucidated. We have previously demonstrated in clinical trials that preferential targeting of Langerhans cells (LCs) by transcutaneous immunization shapes the immune response toward vaccine-specific CD8 T cells. Others have shown that ID inoculation of a vaccine, which targets dermal APCs, mobilizes both the cellular and humoral arms of immunity. Here, we investigated the participation of epidermal LCs in response to ID immunization. When human or mouse skin was injected ID with a particle-based vaccine, we observed significant modifications in the morphology of epidermal LCs and their mobilization to the dermis. We further established that this LC recruitment after ID administration was essential for the induction of antigen-specific CD8 T cells, but was, however, dispensable for the generation of specific CD4 T cells and neutralizing antibodies. Thus, epidermal and dermal APCs shape the outcome of the immune responses to ID vaccination. Their combined potential provides new avenues for the development of vaccination strategies against infectious diseases.

PMID:
22170490
DOI:
10.1038/jid.2011.346
[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center