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Unformatted text preview: BIO 203 Lecture 17 March 22 nd , 2007 Immune System continued • B cell acquired immune responses exhibit: o Specificity – lymphocyte b cell receptor activation o Plasma cell antibody production o Memory – clones of long-lived B cells • Immunization allows antibody production, and later immunizations allows the memory cells in the plasma to respond faster, inject with dead viruses or weakened ones which contain the antigen which the B cells will recognize and make antibodies against it • T-cell activation – cell mediated response o Lymphocytes that mature, born in the bone marrow, migrate to the thymus gland, mature into t cells, t helper cell and cytotoxic cell o T cells – receptor which recognizes the antigen o 2 chained proteins, can’t combine with an antigen, unless the antigen is complexed with the bodies own peripheral membrane proteins o T cell doesn’t recognize the antigen by itself o Self peripheral membrane proteins are known collectively as major histocompatibility complex (MHC) proteins...
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This note was uploaded on 04/08/2008 for the course BIO 328 taught by Professor Cabot during the Spring '07 term at SUNY Stony Brook.
- Spring '07