How cancer-associated fibroblasts become activated to support metastasis is not well understood. Here, Avgustinova et al. show that tumour cell-derived Wnt7a activates TGFβ signaling in fibroblasts, inducing them to remodel the microenvironment to the state, which promotes tumour invasiveness and metastasis.
- Alexandra Avgustinova
- Marjan Iravani
- Clare M. Isacke