Additional file 2 of Evidence of steady-state fibroblast subtypes in the normal human breast as cells-of-origin for perturbed-state fibroblasts in breast cancer

Additional file 2. Figure S1c: Identification of CD105low and CD105high CAFs in culture and in situ. c) Micrographs of representative regions within a single cryostat section of the primary tumors CAF1, CAF2 and CAF3 immunoperoxidase-stained for CD105 and counterstained by hematoxylin (nuclei). In all three tumors, cancer cells (arrowheads) are surrounded by both CAFlow (left, arrows) and CAFhigh (right, arrows). Scale bar = 50 μm.