Fig. 4From: Periostin drives extracellular matrix degradation, stemness, and chemoresistance by activating the MAPK/ERK signaling pathway in triple–negative breast cancer cellsACM and PA function in TNBCs by regulating the expression and secretion of periostin. a–c. MDA–MB–231 and SUM159PT cells were treated with vehicle or PA for 24 h after transfection with shPOSTN, and then the related gene expression was detected by qPCR. d–f. MDA–MB–231 and SUM159PT cells were treated with vehicle or PA and/or periostin NeuAbs for 24 h, and then the related gene expression was detected by qPCR. *P < 0.05Back to article page