Abstract
The cell-mediated immune response to HIV-1 is an essential element of the mechanisms for viral replication control. Currently, most of the vaccine candidates in clinical trials were developed to stimulate HIV-1-specific CD8+ cytotoxic (CTL) and CD4+ T helper (Th) lymphocytes. We have been working on a novel approach to develop a vaccine formulation for HIV-1 using a recombinant multiepitopic protein (named CR3), which comprises CTL and Th epitoperich regions of HIV-1 from several subtype B isolates, co-inoculated with the hepatitis B virus surface (HBsAg) and core (HBcAg) antigens of the hepatitis B virus (HBV) as adjuvant. According to our studies in mice, the nasal-subcutaneous co-administration of this multiantigenic formulation induces a strong Th1-biased specific response against CR3, CD8+ T cells in mice spleen and IFN-γ-secreting cells in mesenteric lymph nodes. Cross-reactive p24-specific IFN-γ-secreting cells in spleen were also detected. Moreover, Nef-specific antibodies were elicited in mice sera which might avoid the toxic effects of this antigen. However, a marginal anti-CR3 antibody response was elicited in vaginal mucosa. Additionally, we observed anti-HBsAg and anti-HBcAg cellular and humoral responses. In this regard, our multiantigenic formulation might provide immunity against HBV as an additional benefic considering the high HIV-1-HBV co-infection rate reported worldwide.
Keywords: AIDS vaccines, cellular immunity, mucosal immunity, hepatitis B vaccines
Current HIV Research
Title: Anti-HIV-1 and Anti-HBV Immune Responses in Mice After Parenteral and Nasal Co-Administration of a Multiantigenic Formulation
Volume: 6 Issue: 5
Author(s): Enrique Iglesias, Daymir Garcia, Yamilka Carrazana, Julio C. Aguilar, Aniel Sanchez, Lariza Gorobaya and Aracelys Blanco
Affiliation:
Keywords: AIDS vaccines, cellular immunity, mucosal immunity, hepatitis B vaccines
Abstract: The cell-mediated immune response to HIV-1 is an essential element of the mechanisms for viral replication control. Currently, most of the vaccine candidates in clinical trials were developed to stimulate HIV-1-specific CD8+ cytotoxic (CTL) and CD4+ T helper (Th) lymphocytes. We have been working on a novel approach to develop a vaccine formulation for HIV-1 using a recombinant multiepitopic protein (named CR3), which comprises CTL and Th epitoperich regions of HIV-1 from several subtype B isolates, co-inoculated with the hepatitis B virus surface (HBsAg) and core (HBcAg) antigens of the hepatitis B virus (HBV) as adjuvant. According to our studies in mice, the nasal-subcutaneous co-administration of this multiantigenic formulation induces a strong Th1-biased specific response against CR3, CD8+ T cells in mice spleen and IFN-γ-secreting cells in mesenteric lymph nodes. Cross-reactive p24-specific IFN-γ-secreting cells in spleen were also detected. Moreover, Nef-specific antibodies were elicited in mice sera which might avoid the toxic effects of this antigen. However, a marginal anti-CR3 antibody response was elicited in vaginal mucosa. Additionally, we observed anti-HBsAg and anti-HBcAg cellular and humoral responses. In this regard, our multiantigenic formulation might provide immunity against HBV as an additional benefic considering the high HIV-1-HBV co-infection rate reported worldwide.
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Cite this article as:
Iglesias Enrique, Garcia Daymir, Carrazana Yamilka, Aguilar C. Julio, Sanchez Aniel, Gorobaya Lariza and Blanco Aracelys, Anti-HIV-1 and Anti-HBV Immune Responses in Mice After Parenteral and Nasal Co-Administration of a Multiantigenic Formulation, Current HIV Research 2008; 6 (5) . https://dx.doi.org/10.2174/157016208785861186
DOI https://dx.doi.org/10.2174/157016208785861186 |
Print ISSN 1570-162X |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4251 |
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