fig2

Figure 2. Clusters of circulating cells detected in whole blood liquid biopsy samples from a patient with metastatic breast cancer. A: representative heterotypic cluster of circulating tumor cells (CTCs) and circulating cancer associated fibroblasts (cCAFs); B: representative homotypic cluster of cCAFs. Blue: DAPI; Red: FAP; Green: Cytokeratin; White: CD45. Scale bar = 20 µm. Data reproduced from Ao et al.[46]