Figure 4: Serp-1 did not inhibit pancreatic cancer cell Hs766t growth in vitro. Cultured Hs766t cells were treated with Serp-1 at different doses or saline. MTT assay was performed to assess cell number at 24, 48, 72 and 96 hours and the growth curves of these treatment groups were created. Cell proliferation in vitro for each group showed no significant difference at all time points assayed (n=3 in each time point each treatment group).