Wnt signaling is activated in more than half of gastric cancers through a ligand-dependent manner. Here the authors show with mouse models that tumor-derived Wnt ligands activate liver stromal fibroblasts to facilitate hyaluronan accumulation in the microenvironment, promoting gastric cancer liver metastasis.
- Yuichiro Furutani
- Hiroko Oshima
- Masanobu Oshima