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→Humoral
==Humoral==
==Humoral==
While cell-mediated immunity is important in tissue infections, such as Leishmania, specific antibodies are important in controlling parasites that live in the bloodstream, e.g. malaria. Mechanisms of antibody-mediated immunity include:
*Directly damaging protozoa
*Activating [[Complement|complement]], and the subsequent Membrane Attack Complex
*Blocking attachment to host cells
*Enhancing macrophage phagocytosis
*Involvement in antibody-dependent cell-mediated cytotoxicity
The humoral response involves the production of [[Immunoglobulin E|IgE]]. It is stimulated by [[Mast Cells|mast cells]] producing IL-4 ([[Innate Immune System|innate response]]). It also includes isotype switching of [[Lymphocytes#B Cells|B cells]] to produce [[Immunoglobulin E|IgE]].
The humoral response involves the production of [[Immunoglobulin E|IgE]]. It is stimulated by [[Mast Cells|mast cells]] producing IL-4 ([[Innate Immune System|innate response]]). It also includes isotype switching of [[Lymphocytes#B Cells|B cells]] to produce [[Immunoglobulin E|IgE]].