The "Glue" Holding Your Cells Together Has a Surprising Second Job

Researchers have discovered that E-cadherin, a protein known for holding cells and tissues together, plays a crucial secondary role in helping epithelial cells engulf and remove dead cellular debris. Using live zebrafish and mouse embryos, scientists found that cells can dramatically reshape their lower surfaces to swallow cellular waste while maintaining stable upper surfaces, keeping protective barriers sealed. This dual function demonstrates how cells manage their environment and eliminate damaged components. Understanding E-cadherin's expanded role could have implications for how scientists approach tissue repair, wound healing, and potentially conditions affecting epithelial tissues. This discovery highlights the remarkable multitasking nature of cellular proteins and their importance in maintaining healthy tissues.