Immunology — Flashcards

_____ is a protein secreted by Neisseria spp. that functions to cleave secreted host IgA at its hinge region.

IL-12 stimulates polarization of naive TH0 cells towards a TH_____ phenotype and away from a TH2 phenotype

The _____-type of an antibody is determined by the Fc region (Fc or Fab)

_____ are the two primary opsonins in bacterial defense, which enhances phagocytosis

Ig_____ antibodies bind to the bacteria's capsule, resulting in either phagocytosis (Fc receptors) or binding of complement

Complement may be activated via the _____ pathway, which is mediated by IgM and IgG (immunoglobulins)

MHC _____ presents endogenously synthesized antigens to CD8+ cytotoxic T cells

Different types of immunodiffusions:_____ diffusion in two dimension - Radial immunodiffusion procedure

_____ leprosy is associated with a strong Th1-cell response, allowing for cell-mediated immunity

_____zone phenomenon has excessive antibody in the test system, leading to weak or even absent precipitation.