Modulation of HIV peptide antigen specific cellular immune response by synthetic α- and β-defensin peptides

Teena Mohan, Chandresh Sharma, Ajaz Ahmad Bhat, D. N. Rao

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Defensin peptides have their direct role in host defense against microbial infection as innate molecules and also thought to contribute to adaptive immunity by recruiting naïve T-cells and immature dendritic cells at the site of infection through CCR6 receptor. The main aim of the present study is to investigate the efficacy of defensins for the induction of cell mediated immune response against the peptide antigen of HIV-1 encapsulated in PLG microparticles through intranasal (IN) route in mice model. To characterized, we have analyzed T-cell proliferation, Th1/Th2 cytokines, β-chemokines production and IFN-γ/perforin secretion from CD4+/CD8+ T-cells in response to HIV immunogen alone and with defensins at different mucosal site i.e. lamina propria (LP), spleen (SP) and peyer's patches (PP). The cellular immunogenicity of HIV peptide with defensin formulations showed a significantly higher (p<0.001) proliferation response as compared to individual HIV peptide. The enhanced cytokines measurement profile showed mixed Th1 and Th2 type of peptide specific immune response by the incorporation of defensins. In the continuation, enhancement in MIP-1α and RANTES level was also observed in HIV peptide-defensin formulations. The FACS data had revealed that CD4+/CD8+ T-cells showed significantly (p<0.001) higher IFN-γ and perforin secretion in HIV with defensin peptide formulations than HIV antigen alone group. Thus, the study emphasized here that defensin peptides have a potential role as mucosal adjuvant, might be responsible for the induction of cell mediated immunity when administered in mice through IN route with HIV peptide antigen.

Original languageEnglish
Pages (from-to)1707-1716
Number of pages10
JournalVaccine
Volume31
Issue number13
DOIs
Publication statusPublished - 25 Mar 2013
Externally publishedYes

Fingerprint

HIV Antigens
Defensins
Cellular Immunity
cell-mediated immunity
peptides
antigens
Peptides
HIV
T-lymphocytes
T-Lymphocytes
Perforin
CCR6 Receptors
cytokines
immune response
secretion
Cytokines
Chemokine CCL5
Peyer's Patches
Peyer's patches
laminae (animals)

Keywords

  • CD4/CD8 cells
  • Cytokines/chemokines
  • Mucosal adjuvant
  • Perforin
  • PLG microsphere

ASJC Scopus subject areas

  • Molecular Medicine
  • Immunology and Microbiology(all)
  • veterinary(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

Cite this

Modulation of HIV peptide antigen specific cellular immune response by synthetic α- and β-defensin peptides. / Mohan, Teena; Sharma, Chandresh; Bhat, Ajaz Ahmad; Rao, D. N.

In: Vaccine, Vol. 31, No. 13, 25.03.2013, p. 1707-1716.

Research output: Contribution to journalArticle

Mohan, Teena ; Sharma, Chandresh ; Bhat, Ajaz Ahmad ; Rao, D. N. / Modulation of HIV peptide antigen specific cellular immune response by synthetic α- and β-defensin peptides. In: Vaccine. 2013 ; Vol. 31, No. 13. pp. 1707-1716.
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