Immune responses of B. malayi thioredoxin (TRX) and venom allergen homologue (VAH) chimeric multiple antigen for lymphatic filariasis

• Autorzy: Anugraha G. , Jeyaprita P. J. , Madhumathi J. , Sheeba T. , Kaliraj P.
• Języki publikacji: EN

Abstrakty

EN

Although multiple vaccine strategy for lymphatic filariasis has provided tremendous hope, the choice of antigens used in combination has determined its success in the previous studies. Multiple antigens comprising key vaccine candidates from different life cycle stages would provide a promising strategy if the antigenic combination is chosen by careful screening. In order to analyze one such combination, we have used a chimeric construct carrying the well studied B. malayi antigens thioredoxin (BmTRX) and venom allergen homologue (BmVAH) as a fusion protein (TV) and evaluated its immune responses in mice model. The efficacy of fusion protein vaccine was explored in comparison with the single antigen vaccines and their cocktail. In mice, TV induced significantly high antibody titer of 1,28,000 compared to cocktail vaccine TRX+VAH (50,000) and single antigen vaccine TRX (16,000) or VAH (50,000). Furthermore, TV elicited higher level of cellular proliferative response together with elevated levels of IFN-γ, IL-4 and IL-5 indicating a Th1/Th2 balanced response. The isotype antibody profile showed significantly high level of IgG1 and IgG2b confirming the balanced response elicited by TV. Immunization with TV antigen induced high levels of both humoral and cellular immune responses compared to either cocktail or antigen given alone. The result suggests that TV is highly immunogenic in mice and hence the combination needs to be evaluated for its prophylactic potential.

Słowa kluczowe

EN

lymphatic filariasis; Brugia malayi; thioredoxin; venom allergen homologue; antigen; vaccine; immune response; immunoglobulin G; T cell proliferation

• Wydawca: -
• Czasopismo: Acta Parasitologica
• Rocznik: 2013
• Tom: 58
• Numer: 4
• Opis fizyczny: p.468-477,fig.,ref.

Twórcy

autor

Anugraha G.

• Centre for Biotechnology, Anna University, Chennai 600025, India

autor

Jeyaprita P. J.

• Centre for Biotechnology, Anna University, Chennai 600025, India

autor

Madhumathi J.

• Centre for Biotechnology, Anna University, Chennai 600025, India

autor

Sheeba T.

• Centre for Biotechnology, Anna University, Chennai 600025, India

autor

Kaliraj P.

• Centre for Biotechnology, Anna University, Chennai 600025, India

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