Fig. 1From: Periostin drives extracellular matrix degradation, stemness, and chemoresistance by activating the MAPK/ERK signaling pathway in triple–negative breast cancer cellsACM and PA increase the expression of MMPs and stemness–related molecules in TNBCs. a–b. qPCR analysis of the expression of MMPs (MMP2, MMP9, and MMP13) (a) and stemness–related molecules (MYC, SOX2, and NANOG) (b) in TNBCs (MDA–MB–231 and SUM159PT cell lines) treated with NC or ACM for 24 h. c–d. qPCR analysis of the expression of MMPs (c) and stemness–related molecules (d) in MDA–MB–231 and SUM159PT cells treated with vehicle or PA for 24 h. NC: negative control, ACM: adipogenic conditioned medium. *P < 0.05Back to article page