Why is my immune system attacking my joints? What is the cause? If you have rheumatoid arthritis (RA), this is something you have probably wondered at some point. It’s something Dr. Edward Doherty has wondered as well, and is currently studying. Dr. Doherty and his co-investigator, Dr. Pathricia Tilstam are studying key cells that drive inflammation in their 2-year Arthritis Foundation-funded project, “MIF/CD74 signaling as a new candidate for immunotherapy of rheumatoid arthritis”. With autoimmune disorders like RA, something triggers the immune system to malfunction and attack healthy cells, causing inflammation and disease. Dr. Doherty and Dr. Tilstam are looking for some of the triggers to help develop more effective treatments to stop progression and joint destruction.