The mammalian nuclear transcription factor NF-kappaB is responsible for the transcription of multiple cytokines, including the pro-inflammatory cytokines tumor necrosis factor alpha (TNF-alpha) and interleukin 6 (IL-6). Elevated levels of pro-inflammatory cytokines play an important role in the pathogenesis of inflammatory disorders such as rheumatoid arthritis (RA). Inhibition of the pro-inflammatory transcription factor NF-kappaB has therefore been identified as a possible therapeutic treatment for RA. We describe herein the synthesis and biological activity of a series of imidazoline-based scaffolds as potent inhibitors of NF-kappaB mediated gene transcription in cell culture as well as inhibitors of TNF-alpha and IL-6 production in interleukin 1 beta (IL-1beta) stimulated human blood.

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