FGF2 and cancer: As regards the mechanistic impact of MCs on cancer, a favored notion is that MCs can contribute by expressing cancer‐driving pro‐angiogenic factors such as VEGF, FGF2, angiopoietin‐1, and matrix metalloproteinases (Baram et al., 2001; Esposito et al., 2004; Imada, Shijubo, Kojima, & Abe, 2000; Nakayama, Yao, & Tosato, 2004; Ribatti, Vacca, et al., 2003; Toth‐Jakatics et al., 2000).