AI Insight
Researchers have discovered that a protein known for binding cells and tissues together also plays a crucial role in helping epithelial cells remove dead cells from their midst. Epithelial cells form tightly sealed continuous layers in tissues, and this protein enables them to engulf and clear away dead neighboring cells while maintaining the integrity of the sealed barrier. This dual function of the cellular adhesion protein was previously unknown.
Why it matters
Understanding how epithelial tissues maintain their barrier function while clearing dead cells is important for comprehending wound healing, tissue repair, and potentially inflammatory diseases where this process may be disrupted. This finding could inform therapeutic approaches for conditions involving epithelial tissue damage or dysfunction.
Understand the Science
A protein that sticks cells and tissues together has been found to have a surprising second job: helping cells that are packed into a continuous sealed layer, also known as epithelial cells, engulf nearby dead cells.
Source: Cellular 'glue' helps epithelial tissues engulf dead cells while staying sealed