CU-T12-9

• CAT Number: I046052
• CAS Number: 1821387-73-8
• Molecular Formula: C17H13F3N4O2
• Molecular Weight: 362.31
• Purity: ≥95%
• Synonyms: N-methyl-4-nitro-2-[4-[4-(trifluoromethyl)phenyl]imidazol-1-yl]aniline
• InChI: InChI=1S/C17H13F3N4O2/c1-21-14-7-6-13(24(25)26)8-16(14)23-9-15(22-10-23)11-2-4-12(5-3-11)17(18,19)20/h2-10,21H,1H3
• InChIKey: LITXVDAFEYLWQE-UHFFFAOYSA-N
• SMILES: CNC1=C(C=C(C=C1)[N+](=O)[O-])N2C=C(N=C2)C3=CC=C(C=C3)C(F)(F)F

CU-T12-9 is a specific TLR1/2 agonist with EC50 of 52.9 nM in HEK-Blue hTLR2 SEAP assay. CU-T12-9 activates both the innate and the adaptive immune systems. CU-T12-9 selectively activates the TLR1/2 heterodimer, not TLR2/6. CU-T12-9 signals through NF-κB and invokes an elevation of the downstream effectors TNF-α, IL-10, and iNOS[1].
CU-T12-9 directly targets TLR1/2 to initiate downstream signaling. By binding to both TLR1 and TLR2, CU-T12-9 facilitates the TLR1/2 heterodimeric complex formation, which in turn activates the downstream signaling[1].
CU-T12-9 activates the TLR1/2 pathway by inducing NF-κB activation to trigger downstream signaling, such as secreted embryonic alkaline phosphatase (SEAP), NO, and TNF-α[1].
CU-T12-9 (0.39-100 μM; 24 hours) does not produce toxicity up to 100 μM in HEK-Blue hTLR2 and Raw 264.7 cells[1].
CU-T12-9 up-regulates the mRNA levels of TLR1, TLR2, TNF, IL-10, and iNOS. CU-T12-9 (0.1-10 μM) activates TLR1 mRNA and iNOS mRNA after Raw 264.7 cells are treated for 24 hours. CU-T12-9 (0.1-10 μM) activates TLR2 and IL-10 mRNA after Raw 264.7 cells are treated for 2 hours. CU-T12-9 (0.1-10 μM) activates TNF mRNA after Raw 264.7 cells are treated for 8 hours[1].

Reference

[1]. Cheng K, et al. Specific activation of the TLR1-TLR2 heterodimer by small-molecule agonists. Sci Adv. 2015;1(3). pii: e1400139.
 [Content Brief]