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. 2018 Dec 7;19(12):3920. doi: 10.3390/ijms19123920

Figure 3.

Figure 3

The dynamic bidirectional tumor/stroma interaction. Cancer-associated fibroblasts (CAFs) secrete pro-HGF that is converted in the active mature form by enzymes acting in the tumor microenvironment. Tumor cells can influence CAF activity by mechanisms that have not yet been completely elucidated. The fibrotic components of the extracellular matrix are depicted in grey.