Growth Factors can Enhance Lymphocyte Survival without Committing the Cell to Undergo Cell Division

Growth factors have been defined by their ability to promote the proliferative expansion of receptor-bearing cells. For example, antigen-activated T cells expressing the αβγ form of the interleukin 2 (IL-2) receptor will proliferate in response to IL-2. In contrast, resting T cells, which express th...

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