JAK3 and lymphoma: To further evaluate the specificity of NSC114792 for JAK3 inhibition, we used the rat pre-T lymphoma cell line Nb2 and the murine myeloid progenitor cell line 32D stably expressing IL-2Rβ (32D/IL-2Rβ), both of which have been previously used to study cytokine-dependent activation of JAK proteins [28,29].