Injection of a hydrogel that mechanically resembles a blood clot promotes the growth of new blood vessels in mice.

When a mouse’s brain undergoes traumatic injury, immune cells clear the dead from the affected area, after which blood cells swoop in to repair blood vessels.

Using single-cell RNA sequencing, scientists characterize new populations of dendritic cells and monocytes.

Researchers document the diverse roles of immune cells in neuronal health and disease.