Sensing of extracellular L-Proline availability by the integrated stress response determines the outcome of cell competition.
Shruthi Krishnan, Ana Lima, Sizhe Tan, Ying Thong Low, Salvador Pérez-Montero, Aida Di Gregorio, Adrian Perez Barreto, Sarah Bowling, Karen H. Vousden, Tristan A. Rodríguez
The paper shows that winner cells in cell competition induce L-Proline uptake in loser cells, repressing the integrated stress response and leading to their elimination.
Science Advances · Jul 9, 2025Peer-reviewedDevelopmental Biology