instruction:
In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
question:
 Human peripheral blood T cells , stimulated with PMA for 48 h ( PMA blasts ) , were incubated with IL - 2 in the presence of incremental dosages of dexamethasone ( Dex ; 10 ( - 5 ) - 10 ( - 9 ) M ) .
answer:
IL - 2


question:
 The trans - activator protein Tax of human T - cell leukemia virus type I ( HTLV - I ) plays an important role in the development of adult T - cell leukemia through , at least in part , its ability to stimulate cell growth .
answer:
trans - activator


question:
 Retinoic acid up - regulates myeloid ICAM - 3 expression and function in a cell - specific fashion - - evidence for retinoid signaling pathways in the mast cell lineage .
answer:

ICAM - 3