TLR2 Inhibitor

C29 is a Toll-like receptor 2 (TLR2) inhibitor. C29 blocks hTLR2/1 and hTLR2/6 signaling with IC₅₀s of 19.7 and 37.6 μM, respectively.

CU-CPT22 is a potent protein complex of toll-like receptor 1 and 2 (TLR1/2) inhibitor, and competes with the synthetic triacylated lipoprotein (Pam₃CSK₄) binding to TLR1/2 with a K_i of 0.41 µM. CU-CPT22 blocks Pam₃CSK₄-induced TLR1/2 activation with an IC₅₀ of 0.58 µM.

Robinin is a flavonoid that can be extracted from the leaves of purple cowpea, inhibiting TGF-β, TLR4/NF-κB and TLR2-PI3k-AKT signaling pathways. Robinin exerts anti-inflammatory and anti-tumor effects. The combination of Robinin and Methotrexate (HY-14519) reduces inflammation in experimental arthritis, Robinin can decrease the Doxorubicin (HY-15142A) induced cardiac toxicity effect.

AN-3485 is a benzoxaborole analogue and an orally active antagonist of the Toll-like pathway. AN-3485 can inhibit TLR-mediated inflammatory cytokine secretion and has significant anti-inflammatory activity. In addition, AN-3485 also has certain anti-tumor activity.

Kaempferol 3-O-sophoroside is an orally active derivative of Kaempferol. It exhibits anti-inflammatory, analgesic, and antidepressant effects. Kaempferol 3-O-sophoroside is an inhibitor of the cell surface receptor toll-like receptor (TLR) 2/4 for High mobility group box 1 (HMGB1), and it also exerts anti-inflammatory effects by blocking the activation of NF-κB expression and the production of TNF-α. Kaempferol 3-O-sophoroside promotes the production of brain-derived neurotrophic factor (BDNF) and enhances autophagy by binding to AMP-activated protein kinase (AMPK), thereby exerting antidepressant effects. Kaempferol 3-O-sophoroside holds promise for research in the fields of inflammation and neurodegenerative diseases.

Tomentosin is an orally active natural sesquiterpenoid lactone. Tomentosin exhibits multiple activities such as anti-tumor, anti-fungal, anti-inflammatory, anti-oxidant and neuroprotective effects. Tomentosin can inhibit tumor cell proliferation, migration and invasion, and induce apoptosis. Tomentosin can be used in the research of tumors, inflammation and nervous system diseases.

TSI-13-57 is a pan-TLR inhibitor (IC₅₀: 2.7 μM, 6.03 μM, 7.37 μM, 6.38 μM for TLR9, TLR7, TLR2, TLR4, respectively). TSI-13-57 inhibits homodimerization of the TIR domains of MyD88. TSI-13-57 reduces systemic inflammatory responses in LPS-induced mice.

Cholesterol oxidase, Rhodococcus sp. is a key enzyme in the cholesterol degradation process. It catalyzes the isomerization and oxidation of cholesterol mediated by the coenzyme FAD. Research indicates that cholesterol oxidase plays a crucial role in the pathogenicity of Mycobacterium tuberculosis by modulating the host macrophage immune response through inhibition of the Toll-like receptor 2 (TLR2) signaling pathway, thereby enhancing the survival of Mycobacterium tuberculosis. Cholesterol oxidase, from Rhodococcus sp., shows potential for research in the field of tuberculosis.