ITGA2 and gastric cancer: Seven human gastric cancer cell lines expressed high (defined as RMA > mean + 1 SD) and 5 human gastric cancer cell lines expressed low (defined as robust multi-array average (RMA) < mean-1 SD) ITGA2 mRNA levels (Fig. 1c), among which the AGS cells expressed high level of ITGA2 (RMA 1656.7) and the SUN-1 cells express low level of ITGA2 (RMA 18.0).