The most important set of receptors for danger patterns are TLR receptors. Together ten different TLR receptors were identified so far. Majority of TLR receptors is expressed on the cell surface to identify extracellulary localized danger signals. Some TLR receptors are also expressed in the intracellular compartment to identify intracellular danger signals. Receptors for danger signals display individual differences delineated by genetic polymorphism. The individual immune reactivity is developed in the context of genetic predisposition and the exposition to variable environmental factors. The differences in an individual immune reactivity are probably responsible for individual susceptibility or resistance to the development of immunopathological reactivity, which is involved in the immunopathogenesis of atherosclerosis.
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