GPLD1 and breast cancer: Due to the involvement of PLD in breast cancer migration and invasion [11, 22, 30, 41], we wondered whether PLD activity might also play a role in the migration of MDA-MB-468-NEO (MDA-NEO) and MDA-MB-468-HER2 (MDA-HER2) human breast cancer cells [3, 9, 12, 52, 53].