Figure 2From: Breast cancer stromal fibroblasts promote the generation of CD44+CD24- cells through SDF-1/CXCR4 interactionImmunohistochemistry of NFs and CAFs. (A) Phase images of primary cultures of stromal fibroblasts isolated from invasive ductal carcinomas (right) and stromal fibroblasts from normal breast tissue (left), original magnification × 100. (B) CAFs (right) were positive for α-SMA staining, while NFs (left) were negative.Back to article page