this was determined in vitro by studying the effects of cytosine arabinoside , hydroxyurea , actinomycin d , camptothecin , cordycepin , cycloheximide , and puromycin on the induction by thymopoietin of thymocyte differentiation , measured by the acquisition of the differentiation allo-antigens tl and thy-1 by and inducible fraction of mouse spleen cells .
C1515432
thymocyte differentiation
C0007634
cells