Figure 2a. TIMP1 promotes GC proliferation, migration and invasion. SGC-7901 and MGC-803 cells were transduced with TIMP1 expression plasmid (pTIMP1) or pcDNA3.1 as indicated. (A) Levels of TIMP1 were detected by western blot. (B) Cell proliferation was determined at the indicated time points by MTS assay. (C) Effect of TIMP1 on cell proliferative abilities was examined by EdU incorporation assay.