10007980  3,4-DAA



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• See more Immunology; Inflammation; Neuroscience

For active pharmaceutical ingredients (APIs) related to 3,4-DAA, see Cayman Pharma

Local catabolism of the amino acid tryptophan by indoleamine 2,3-dioxygenase (IDO) is considered an important mechanism of regulating T-cell immunity. Inhibition of the production of T helper-1 (TH1) cytokines offers a new strategy for treating TH1 mediated autoimmune diseases such as multiple sclerosis.3,4-DAA is an orally active synthetic derivative of the tryptophan metabolite anthranilic acid. It suppresses antigen-specific proliferation of MBP Ac1-11 TCR CD4+ T-cells. At a concentration of 200 µM, 3,4-DAA reduces IFN-γ, IL-2, IL-12/23 p40, and TNFα in splenocytes from antigen-induced transgenic mice. However, at a concentration of 30 µM, IL-4, and IL-10 levels were increased. Expression of inducible nitric oxide synthase and nitric oxide release from EOC20 cells induced by IFN-γ and LPS are also suppressed by 3,4-DAA at concentration of 30-200 µM. Mice with experimental autoimmune encephalomyelitis treated orally (300 mg/kg per day) with 3,4-DAA exhibited fewer and milder relapses and less severe disease compared to control animals.1
1  Platten, M., ho, P.P., Youssef, S., et al. Treatment of autoimmune neuroinflammation with a synthetic tyrptophan metabolite. Science 310 850-855 (2005).

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Pricing Information

Prices listed here are the Manufacturer's Suggested European Retail Price. The actual prices quoted by each individual distributor may vary. Please visit the Global Buyer's Guide on the Cayman Chemical (world) website to locate a distributor in your region.

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Size Price Quantity
1 mg €15.00
5 mg €65.00
10 mg €116.00
50 mg €504.00
Pricing updated 2010-08-01.
Prices are subject to change without notice.