Immune cells called macrophages from the peritoneal cavity of mice migrate to injured livers and aid in repair.

In mice, immune cells from the body cavity surrounding organs arrive at the site of damage to chew up the nuclei of dead cells.

Scientists show that reactivation of an RNA-binding protein in damaged adult tissues can lead to improved regeneration.

Things break in the lab. Here’s how to protect your equipment, and what to do when it stops working.