(December 21, 2018) This month, researchers in Boston published their findings on how PARP inhibitors (PARPi) cause a chain reaction of responses from the tumor and its environment. Study authors, including OCRA grantee Ursula Matulonis, MD, treated BRCA-1 deficient tumors with olaparib, a PARPi, and found that it began both a natural and medically induced antitumor process that was STING (Stimulator of Interferon Genes) dependent…