COL3A1 and cancer: Furthermore, the myoFib‐1 subset expressed the markers FAP, COL3A1, and AEBP1, which are typically associated with tuning cancer‐associated fibroblast activation and extracellular matrix remodelling, while myoFib‐2 showed higher expression of genes encoding growth factors, including TGFB1, TGFB2, and TGFB3 (Figure 3D).