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    Immunology of leishmaniasis

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    Date
    2013-06
    Author
    Gicheru, M. M.
    Mutiso, J. M.
    Macharia, J. C.
    Ozwara, H.
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    Abstract
    Resolution of leishmanial infection is dependent on the coordinated interactions between components of cell mediated immune response, central to which is the activation of targeted T-cell populations for appropriate cytokine production and activation of infected cells. In human as well as murine leishmaniasis, cure is associated with predominant Th1 response, good cell-mediated immunity (CMI), production of interferon gamma (IFN-γ) and macrophage activation. On the other hand, cytokine analysis in visceral leishmaniasis reveals enhanced induction of IL-10 and⁄or IL-4 mRNA in tissues, poor CMI, hypergammaglobulinaemia and enhanced presence of IL-4 in circulation of patients with progressive disease. The Th1/Th2 paradigm of resistance/susceptibility is an oversimplication ofa far more complicated network of regulatory/counter-regulatory interactions and thus a deficit in the understanding of the exact mechanisms involved in resolution vs severity of leishmaniasis. This review, in additionto giving a general overview of basic immunology of Leishmania infection, consolidates findings on immune responses in experimental and human leishmaniasis. Such information is important in giving a feasible direction in designing prophylactic and therapeutic strategies against leishmaniasis.
    URI
    http://oris.nacosti.go.ke/modules/library/publications/research_reports/NACOSTI-DL-RR-1017.pdf
    http://ir-library.ku.ac.ke/handle/123456789/10274
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