TERMS Flashcards
a state in which the individual in incapable of developing an immune response to a specific antigen
immunologic tolerance
a lack of responsiveness to an individuals own antigens
self tolerance
clonal depletion of self reactive T and B lymphocytes during their maturation in lymphoid organs (thymus, bone marrow); apoptosis occurring during development in utero
central tolerance
back up systems exist to destroy or control any self reactive T cells that escape central clonal depletion
peripheral tolerance
what is this type of peripheral tolerance?
activation induced cell death (apoptosis)
clonal deletion
what is this type of peripheral tolerance?
prolonged or irreversible functional inactivation of lymphocytes induced by encounter with antigens under certain conditions
clonal anergy
what is this type of peripheral tolerance?
suppressor T cells exist which can down regulate the function of auto reactive t cells
peripheral suppression by T cells