PMEPA1 and breast carcinoma: This is exactly opposite to the expression pattern observed by Liuet al. forNKILA in these cell lines and among tumors.PMEPA1 knockdown has been found to be able to attenuate growth and motility of MDA-MB-231 breast cancer cells9, which is interesting since Liuet al.1 found that forcedNKILA expression (which might knockdownPMEPA1 expression) in MDA-MK-231 cells achieves similar effects.