... be of interest to see the role of the TFKs in regulating the differentiation of thissubset.Together, these studies suggest that the TFKs, par-ticularly Itk, but also Rlk ⁄ Txk, play influential ... periphery, but also regulate the development of distinct innate-type cytokine-producing T- cell populations in the thymus.Together, these results suggest that the Tec family kinases play critical rolesin ... were hints that Itk had additionaleffects on thymocyte development. Closer examination of the thymocytes in Itk mice showed that although the cellularity of the thymus is reduced, the CD8 singlepositive...