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13 Cards in this Set

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ADCC
once antibodies coat the surface of a pathogen, natural killer lymphocytes bind to the Fc regions of the antibody and lyse the target cells with perforin and granzymes
adhesins
molecules that attach pathogens to their target cells
adjuvant
increases immune response of "other" while having no immune response elicted itself
attenuated virus
weakened virus with reduced ability to cause infection and low ability to cause disease, used in "live" vaccines
chemokine
an immune system cytokine that signals leukocytes to rush to the site of inflammation or infection and activates other leukocytes
complement
part of innate immunity, antibodies trigger reactions that lead to opsonization by C3b, formation of MAC, inflammation
complement protein C3b
acts as an opsonin, adheres to bacteria cell walls, starts cascade
complement protein C5a
releases histamine into bloodstream to cause inflammation
CXCR4
chemokine receptor in Th-cells for HIV virus, attaches to gp120
cytokine
proteins secreted by many types of cells that regulate adaptive immune responses
GAG
group specific antigen, a gene coded by HIV that produces a nonfunctional polyprotein which is cleaved by HIV protease generates nucleocapsid proteins
GP120
antigenic glycoprotein that is the primary attachment molecule of HIV
Hemolysin
protein produced by S. aureus and other pathogens that punches holes int he cytoplasmic membranes of red blood cells