Fig 3. Actin inhibitor (Latrunculin) induces apoptosis activation in cultured megakaryocytes.
A) FACS analysis of apoptosis activation by measuring Mitochondrial Outer Membrane Potential (MOMP) and phosphatidyl serine (PS) externalization B) Luminescence activity measuring Caspase 3 and 7 activity were measured using Caspase-Glo 3/7 Assay. Actin inhibition induces overexpression of both pro-apoptotic and pro-survival genes and increases BCL-XL protein synthesis C) RT-PCR analysis of mRNA expression of pro-apoptotic genes: BAX, BAK, BNIP3 and BNIP3L and pro-survival genes: BCL-2, BCL-XL, IGF1R and CFLAR relative to untreated control. BCL-XL protein showed increased synthesis with actin polymerization inhibitor treatment D) Western Blot (density ratio = 1.34 compared to untreated control) and E) Intracellular protein quantification with FACS. * p<0.05; ** p<0.005