Some of the body's cells stay put for life, while others are free to roam. To move, these migratory cells rely on filopodia—sensitive, finger-like protrusions that reach out from the cell membrane into the local environment. In a healthy cell, this can ...

Researchers at the University of Toronto have discovered how tiny particles released by a special type of immune cell can help blood vessels form in engineered human heart tissue. The findings shed new light on how the heart may naturally support repair and could help scientists design better heart tissues for research and future therapies.