KMID : 0425120190570010033
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Parasites, Hosts and Diseases 2019 Volume.57 No. 1 p.33 ~ p.38
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Immune Response of BALB/c Mice toward Putative Calcium Transporter Recombinant Protein of Trichomonas vaginalis
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Mendoza-Oliveros Tahali
Arana-Argaez Victor Alvarez-Sanchez Leidi C. Lara-Riegos Julio Alvarez-Sanchez Maria Elizbeth Torres-Romero Julio C.
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Abstract
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Trichomoniasis is a common sexually transmitted infection caused by Trichomonas vaginalis, which actually does not exist a vaccine for control or prevention. Thus, the identification of new and potent immunogens in T. vaginalis, which can contribute to the development of a vaccine against this parasite, is necessary. Therefore, the aim of this work was to evaluate the potential of a recombinant Transient Receptor Potential-like channel of T. vaginalis (TvTRPV), as a promising immunogen in BALB/c mice. First, TvTRPV was cloned and expressed as a recombinant protein in Escherichia coli BL21 cells and purified by nickel affinity. Next, BALB/c mice were immunized and the antibody levels in mice serum and cytokines from the supernatant of macrophages and from co-culture systems were evaluated. Recombinant TvTRPV triggered high levels of specific total IgG in sera from the immunized mice. Also, a statistically significant increase of cytokines: IL-1¥â, IL-6, and TNF-¥á after stimulation with the corresponding antigens in vitro, was identified. Moreover, co-cultures using CD4+ T cells from immunized mice were able to identify higher levels of IL-10 and IFN-¥ã. These results were useful to validate the immunogenicity of TvTRPV in BALB/c mice, where IL-10-IFN-¥ã-secreting cells could play a role in infection control, supporting the potential of TvTRPV as a promising target for vaccine against T. vaginalis.
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KEYWORD
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Trichomonas vaginalis, TRPV channel, recombinant protein, immune response, BALB/c mouse
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