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© Research
Publication : Vaccine

Targeting of HIV-p24 particle-based vaccine into differential skin layers induces distinct arms of the immune responses

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Vaccine - 07 May 2011

Liard C, Munier S, Arias M, Joulin-Giet A, Bonduelle O, Duffy D, Shattock RJ, Verrier B, Combadière B

Link to Pubmed [PMID] – 21554912

Vaccine 2011 Aug;29(37):6379-91

Skin routes of immunization such as subcutaneous (SC), intradermal (ID) and transcutaneous (TC) administration are utilized for vaccination against various pathogens, without understanding their potential impact on the outcome of immune responses. We demonstrated that SC immunization induced HIV-1 p24 specific IgG in absence of antigen-specific CD8 T cells, whereas the ID route induced both cellular and humoral responses. Interestingly, TC application through empty hair follicular ducts, targeting epidermal Langerhans Cells (LCs), induced major CD8 effector cells, in the absence of IgG. However, high levels of mucosal IgA, were localized in the stratified epithelium of the vagina after TC prime. We propose that re-directing the immune responses by targeting differential skin immunization routes, offers enormous potential for innovative vaccination strategies, especially against HIV.

http://www.ncbi.nlm.nih.gov/pubmed/21554912