Designing Anti-inflammatory Drugs from Parasitic Worms: A Synthetic Small Molecule Analogue of the <i>Acanthocheilonema viteae</i> Product ES-62 Prevents Development of Collagen-Induced Arthritis
作者:Lamyaa Al-Riyami、Miguel A. Pineda、Justyna Rzepecka、Judith K. Huggan、Abedawn I. Khalaf、Colin J. Suckling、Fraser J. Scott、David T. Rodgers、Margaret M. Harnett、William Harnett
DOI:10.1021/jm401251p
日期:2013.12.27
In spite of increasing evidence that parasitic worms may protect humans from developing allergic and autoimmune diseases and the continuing identification of defined helminth-derived immunomodulatory molecules, to date no new anti-inflammatory drugs have been developed from these organisms. We have approached this matter in a novel manner by synthesizing a library of drug-like small molecules based upon phosphorylcholine, the active moiety of the anti-inflammatory Acanthocheilonema viteae product, ES-62, which as an immunogenic protein is unsuitable for use as a drug. Following preliminary in vitro screening for inhibitory effects responses, a sulfone-containing phosphorylcholine analogue (11a) was selected for testing in collagen-induced arthritis (CIA). Testing revealed that 11a was as effective as ES-62 in protecting DBA/1 mice from developing CIA and mirrored its mechanism of action in downregulating the TLR/IL-1R transducer, MyD88. 11a is thus a novel prototype for anti-inflammatory drug development. on relevant macrophage cytokine an in vivo model of inflammation,