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Amlexanox is a specific inhibitor of the noncanonical IkB kinases IKKε and TANK-binding kinase 1 (TBK1) . At the concentrations that block IKKε and TBK1, it has no effect on the canonical IkB kinases IKKα and IKKβ, or a large panel of other kinases.
Amlexanox inhibits IKK-ε and TBK1 by competing for ATP-binding to the enzyme.
IKKε and TBK1 are essential players in the coordination of interferon regulatory factor 3 (IRF3)- and NF‑κB-mediated inflammatory signaling pathways. Indeed, elevated IKKε and TBK1 activity has been associated with several inflammatory diseases [2,3].
Presently, amlexanox is approved for the treatment of a variety of conditions, including asthma, allergic rhinitis and aphthous ulcers, due to its anti-inflammatory and anti‑allergic properties.
1. Reilly SM. et al., 2013. An inhibitor of the protein kinases TBK1 and IKK-e improves obesity-related metabolic dysfunctions in mice. Nat Med. 19(3):313-21.
2. Yu J. et al., 2015. Regulation of T-cell activation and migration by the kinase TBK1 during neuroinflammation. Nat Commun. 6:6074.
3. Niederberger E. et al., 2013. The non-canonical IkB kinases IKKe and TBK1 as potential targets for the development of novel therapeutic drugs. Curr Mol Med. 13(7):1089-97.
CAS number: 68302-57-8
Working concentration: 1-300 μg/ml for cell culture assays
Solubility: 10 mg/ml (33.5 mM) in DMSO
Molecular weight: 298.3Back to the top
Amlexanox is provided lyophilized.
- 50 mg Amlexanox
Amlexanox is shipped at room temperature.
Store at -20°C.
Lyophilized Amlexanox is stable for at least 2 years when properly stored.Back to the top