ABL2 and neoplasm: Further, we detected relatively lower expression of TGF-β2, TGF-βRIII, ARHGEF15 and ABL2 in both SW1990- and PANC-1-reporter cells co-cultured with irradiated feeder cells than those with untreated ones in vitro (Fig. 4h), and similarly in irradiated tumor tissues than in the untreated ones in vivo (Fig. 4i).