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Science 11 July 1986:
Vol. 233. no. 4760, pp. 203 - 206
DOI: 10.1126/science.3523754

Articles

Science, Vol 233, Issue 4760, 203-206
Copyright © 1986 by American Association for the Advancement of Science


articles

Interleukin-2 induction of T-cell G1 progression and c-myb expression

JB Stern and KA Smith

In studies to determine the biochemical mechanisms responsible for cell proliferation, synchronized T cells were used as a model for cellular growth control. By metabolic and morphologic criteria, it was found that activation of the T-cell antigen receptor rendered the cells responsive to interleukin-2 (IL-2), but did not move them through the cell cycle. Instead, IL-2 stimulated G1 progression to S phase, or lymphocyte "blastic transformation." During IL-2-promoted G1 progression, expression of the cellular proto-oncogene c-myb was induced transiently at six to seven times basal levels, maximal levels occurring at the midpoint of G1.


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