Confirmation that intruder-gobbling cells have different ancestries and functions fuels search for new therapies. Geetanjali Rangnekar reports.
Skin sloughs off, but macrophages make sure you never lose your ink – even if you want to. Fiona McMillan reports.
Chinese scientists watched macrophages ‘glue’ severed arterioles to stop microbleeds in the brain. Belinda Smith reports.
Before they die, do infected immune cells shout a warning to their neighbours? Viviane Richter reports.