Fig. 1From: Regulation of self-renewal and senescence in primitive mesenchymal stem cells by Wnt and TGFβ signalingCharacteristics of LP and HP pMSCs grown in FM and XM. a, b Phase contrast microscopy images and expression of surface markers determined by flow cytometer in pMSCs, respectively. Scale bars represent 100 μm (magnification: 4×). HP pMSCs in FM had larger cell size and significantly downregulated expression of CD49f and CD90 compared to LP pMSCsBack to article page