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Micro Ch16 L2 (roles of major histocompatilbility complex and antigen…
Micro Ch16 L2
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professional APC
cytoplasmic membrane of professional apc around 100,000 MHCII molecule, but has both class I and II
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these molecules can bind many thousands of different epitopes because they are not specific like enzymes
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Class I and II
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phagocytes in brain. macrogalia, stellate macrophages in the liver called kupffer cells
T lymphocytes
often act against body cells that harbor intracellullar pathogens like a virus and act against body cells that produce abnormal antigens
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types of lymphocytes
immunologists recognize 3 main types of T cells based on surface molecules and characteristics functions--cytotoxic, helper, and regulatory T cells