TLR4 Inhibitor, TAK-242, TAK-242; CAS 243984-11-4; is a cell-permeable compound that selectively binds to Cys747 of TLR4 and selectively disrupts its interaction with adaptor molecules TIRAP and TRAM.
A cell-permeable cyclohexenecarboxylate that disrupts TLR4 interaction with adaptor molecules TIRAP and TRAM by selectively binding to TLR4, but not TLR1-3 or TLR5-10, via TLR4 intracellular Cys747 residue. Shown to effectively inhibit TLR4-mediated signaling events, including LPS-induced NO and inflammatory cytokines production in murine RAW264.7 macrophages (IC50 = 1.8, 1.3, and 1.9 nM, respectively, against NO, IL-6, and TNF-α production), TLR4/TIRAP-dependent NF-κB activity as well as TLR4/TIRAP- and TLR4/TRAM-dependent ISRE activity (IC50<300 nM) in HEK293-hTLR4/MD2-CD14 transfected with either TIRAP or TRAM. When administered at an i.v. dose of 3 mg/kg, TAK-242 is reported to completely prevent LPS- (7 mg/kg, i.p.) induced death in mice in vivo. Complete elimination of septic shock-induced death can be extended to live E. coli-infected mice when co-administered with ceftazidime (3 mg/kg TAK-242 and 20 mg/kg ceftazidime, i.v.).
生物化学的/生理学的作用
Cell permeable: yes
Primary Target TLR4
Reversible: yes
包装
Packaged under inert gas
警告
Toxicity: Harmful (C)
再構成
Following reconstitution, aliquot and freeze (-70°C). Stock solutions are stable for up to 1 year at -70°C. Use only fresh DMSO.
その他情報
Matsunaga, N., et al. 2011. Mol. Pharmacol.79, 34. Takashima, K., et al. 2009. Br. J. Pharmacol.157, 1250. Li, M., et al. 2006. Mol. Pharmacol.69, 1288. Yamada, M., et al. 2005. J. Med. Chem.48, 7457.
法的情報
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
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