Fig. 1.
(A) 7C11 anti-Fas MoAb induces DNA fragmentation in RPMI 8226 MM cells. Cells were cultured in media alone and for the indicated times with 5 μg/mL of 7C11 anti-Fas MoAb. Genomic DNA was isolated, end-labeled with 0.5 mCi of [γ32-P]-dCTP, and analyzed by 1.8% agarose gel electrophoresis. MW, molecular weight markers (123-bp ladders and HindIII digest of l-DNA). (B) Quantification of anti-Fas-MoAb induced apoptosis in RPMI-8226 MM cells was performed by using propidium iodide staining technique. Cells were treated with anti-Fas MoAb for the indicated time intervals and stained with propidium iodide; percentage of apoptotic cells was analyzed by FACS. “C” represents control cells.