Fig 2. WS19T-CM reduces MDA-MB-231 cell proliferation.

A. MTT analysis of MDA-MB-231 cells + DMEM or WS19T-CM for 16-72h. *p<0.0001 relative to DMEM at the corresponding time point. B. 50,000 MDA-MB-231 cells were initially plated into DMEM or WS19T-CM and grown through 72h, manually counting at the indicated time points. *p<0.0001 relative to DMEM control at the corresponding time point. Three independent experiments each consisting of nine replicates per condition.