Circulating tumor cell (CTC) clusters are much more likely to produce viable metastasis than single CTCs. Here the authors find that the transmembrane protein Plexin-B2 (PLXNB2) mediates homotypic and heterotypic CTC cluster formation, driving lung metastasis in breast cancer mouse models.
- Emma Schuster
- Nurmaa K. Dashzeveg
- Huiping Liu
