thymic lymphocytes mature in contact with 3-5 classes of nonlymphoid cells ( thymic nurse cells , cortical dendritic epithelial cells , medullary epithelial cells , dendritic reticular cells , and macrophages ) , and one of these subsets , cortical dendritic epithelial cells , express an unusual distribution of mhc antigen ( perhaps utilized in the maturation of t cell mhc restriction ) ;
C0007634
cells
C1515126
maturation