MT1M and hepatocellular carcinoma: It was found that p4-MT1M transfected HCC cells had fewer colonies (86 or 112 colonies), siR-MT1M transfected cells had more colonies (382 or 453 colonies), but p4 transfected cells (218 or 326 colonies) and siR-NC transfected cells (231 or 346 colonies) had similar number of colonies (Figure 2B).