Multiple sclerosis (MS) is an autoimmune disease that destroys the protective myelin covering around nerves. Every five minutes, someone is diagnosed with the disease around the world, adding to about 2.8 million individuals that currently have to live with it. Now researchers have developed a cell therapy that leverages myeloid cells, the very type of immune cells that cause MS-triggering nerve inflammation in patients. By attaching 'backpacks' loaded with anti-inflammatory drugs to the cells, and infusing them into a mouse model of MS, they were able to partially reverse paralysis and restore movement.