Zhu et al. show how cancer-associated fibroblasts (CAFs) regulate metabolism of branched-chain amino acids in pancreatic ductal adenocarcinomas. CAFs secrete and deliver branched-chain ketoacids to cancer cells by degrading proteins in the extracellular matrix that are internalized from the tumour microenvironment.
- Ziwen Zhu
- Abhinav Achreja
- Deepak Nagrath