CAMBRIDGE, Mass.--(BUSINESS WIRE)--Idera Pharmaceuticals, Inc. (Nasdaq: IDRA) today presented data on the mechanism of action of IMO-3100, an antagonist of Toll-like Receptor (TLR) 7 and TLR9, in a preclinical primate model at the Keystone Symposia conference “Tolerance and Autoimmunity” being held February 21-26 in Taos, New Mexico. Idera is developing IMO-3100 for the treatment of autoimmune diseases. The presentation entitled “IMO-3100, a novel antagonist, suppresses TLR7- and TLR9-mediated immune responses in non-human primates” was made by Idera scientists. The data presented showed that subcutaneous administration of IMO-3100 suppressed TLR7- and TLR9-mediated immune responses in primates, reducing production of cytokines such as tumor necrosis factor-alpha (TNF-a), interferon-alpha (IFN-a), IP-10, and IL-6.