Fig. 6From: The Small GTPase Rac Suppresses Apoptosis Caused by Serum Deprivation in FibroblastsRequirement of PI3K activity in Rac1-mediated survival. Cells were deprived of serum in the absence (−S) or presence (−S + LY) of LY259002 (10µM) for 4 days. Cell viability was assayed by SRB staining.Back to article page