Toll-like Receptor (TLR) Inhibitor

N-(p-Coumaroyl) Serotonin is an orally active polyphenol found in safflower seeds with potent anti-inflammatory, antioxidant, and antitumor activities. N-(p-Coumaroyl) Serotonin suppresses NF‑κB, TLR4/MyD88 and MAPK signaling, activates NQO1/HO‑1 pathways, and inhibits pro‑inflammatory cytokines, iNOS and COX‑2 and ROS production. N-(p-Coumaroyl) Serotonin induces S‑phase arrest and apoptosis in glioblastoma cells, reduces atherosclerotic lesions, and alleviates renal and vascular injuries. N-(p-Coumaroyl) Serotonin acts as a vasodilator, regulates calcium dynamics. N-(p-Coumaroyl) Serotonin can be used for the research of neurodegenerative diseases, atherosclerosis, glioblastoma, and acute renal failure.

Trimebutine maleate is a multi-target inhibitor and opioid receptor agonist with antimuscarinic activity. Trimebutine maleate inhibits L-type Ca²⁺ channels and large-conductance calcium-activated potassium channels (BK_Ca channels), thereby inhibiting extracellular calcium influx and potassium ion efflux. Trimebutine maleate also targets Toll-like receptors, inhibits Toll-like receptor 2/4/7/8/9 signals, and inhibits LPS-induced IRAK1 activation, as well as ERK1/2, JNK and NF-κB activation, thereby exerting anti-inflammatory effects. Trimebutine maleate also induces tumor cell apoptosis by inhibiting the AKT/ERK pathway. Trimebutine maleate also inhibits excessive contraction of smooth muscle and can be used in the study of gastrointestinal disorders such as irritable bowel syndrome (IBS).

R1-ICR-5 is a highly selective RIPK1 PROTAC degrader. Mediated by VHL, R1-ICR-5 induces the degradation of RIPK1, which in turn dysregulates the TNFR1 and TLR3/4 signaling hubs, enhances the signaling outputs of NF-κB, MAPK and IFN, and simultaneously promotes RIPK3 activation and necroptosis (necroptosis). R1-ICR-5 can be used in the research of triple-negative breast cancer and skin inflammation.

E104 (compound 1) is a potent and selective TLR7 agonist. E104 can be delivered by antibody-drug conjugate (ADC) technology to elicit potent anticancer activity. E104 induces the activation of mouse macrophages and hPBMCs.

L48H37 is an analog of Curcumin (HY-N0005) with improved chemical stability. L48H37 is a potent and specific myeloid differentiation protein 2 (MD2) inhibitor and inhibits the interaction and signaling transduction of LPS-TLR4/MD2. L48H37 is used for the research of sepsis or lung injury treatment.

DB-3-291 is a CSK-targeting agent with a human CSK K_d of 1 nM and high selectivity for CSK over other kinases bound by dasatinib. DB-3-291 induces targeted degradation of CSK via a ubiquitin-dependent pathway and incorporates dasatinib as the kinase binding ligand. DB-3-291 can be used for the research of innate immune responses to viral DNA.

NB-3 is a nicotinamide adenine dinucleotide (NAD) hydrolase SARM1 inhibitor. NB-3 intercepts NAD hydrolysis and undergoes covalent conjugation with the reaction product adenosine diphosphate ribose (ADPR). The resulting small-molecule ADPR adducts are highly potent and confer compelling neuroprotection in neurological injury.

GlcNAc-MurNAc, a disaccharide, is a TLR4 agonist with a K_d of 383 μM for murine TLR4. GlcNAc-MurNAc directly binds to TLR4 and activates its downstream NF-κB and IRF pathways. GlcNAc-MurNAc improves Dextran sulfate sodium salt (DSS) (HY-116282C)-induced colitis in mice through a TLR4-dependent mechanism. GlcNAc-MurNAc can be used for the study of inflammatory bowel disease.

Kaempferol 3-O-gentiobioside is an orally active flavonoid, with a K_a value of 57 µM against human NOTCH1 and an IC₅₀ value of 50 μM against α-glucosidase. Kaempferol 3-O-gentiobioside inhibits the NOTCH signaling pathway. It downregulates the expression of TLR4 and NLRP3, and suppresses the activation and nuclear translocation of NF-κB. Kaempferol 3-O-gentiobioside inhibits the expression of MUC5AC, reduces nitrite and ROS levels, and attenuates excessive mucus secretion. It exhibits antibacterial activity, reducing the formation and growth of MRSA biofilms. Kaempferol 3-O-gentiobioside blocks the TGF-β/ALK5/Smad signaling pathway and inhibits epithelial-mesenchymal transition. It suppresses the proliferation, migration, invasion and metastatic growth of tumor cells. Kaempferol 3-O-gentiobioside alleviates airway inflammation and mucus hypersecretion in mice with allergic asthma. It reduces the volume of ovarian cancer xenografts in mice. Kaempferol 3-O-gentiobioside can be used in research related to allergic asthma, diabetes, MRSA infection, breast cancer, gastric cancer and ovarian cancer.

MAPK-IN-1 (Compound 2) is a MAPK signaling pathway inhibitor. MAPK-IN-1 exhibits AChE inhibitory activity with an IC₅₀ of 23.84 μM. MAPK-IN-1 shows anti-neuroinflammatory and neuroprotective activity and can be used for Alzheimer's disease research.

ODN 20844, a guanine-modified inhibitory oligonucleotide (INH-ODN), is a TLR7 and TLR9 (Toll-like receptor) inhibitor, and its parent is INH-ODN 2088. ODN 20844 disrupts TLR7- and TLR9-mediated immune cell immune responses. ODN 20844 sequence: 5'-TCCTGGCGc7GGGAAGT-3'.

Fosfenopril (Fosinoprilat) is a potent angiotensin converting enzyme (ACE) inhibitor. Fosfenopril alleviates lipopolysaccharide (LPS)-induced inflammation by inhibiting TLR4/NF-κB signaling in monocytes.

BMS905 is an orally active TLR7 and TLR8 dual inhibitor (IC₅₀s: 0.7 and 3.2 nM respectively). BMS905 inhibits TLR7 or TLR8 induced IL-6 production in human/mouse whole blood. BMS905 can be used for research of lupus.

Sericin is an orally active globular protein produced by silkworm cocoons. Sericin inhibits the expression of COX2, iNOS, TLR4, MAPK and NF-κB; reduces the levels of IL-18, IL-1 and CCL2; antagonizes the activity of AChE; and downregulates the expression of Bcl-2. Sericin enhances the PI3K/AKT-mediated insulin signaling pathway. Sericin inhibits the activity of tyrosinase (Tyrosinase), scavenges ROS, chelates metal ions, and increases the levels of antioxidant enzymes. Sericin induces apoptosis and arrests the cell cycle. Sericin exhibits antibacterial, moisturizing, cardioprotective and anticoagulant properties. Sericin can be used in research related to type 2 diabetes, hyperlipidemia, obesity, Alzheimer's disease, colon cancer, peripheral nerve injury and ischemic myocardial infarction.

6-Methoxyflavone is an orally active methoxyflavone. 6-Methoxyflavone suppresses neuroinflammation in microglia through the inhibition of TLR4/MyD88/p38 MAPK/NF-κB dependent pathways and the activation of HO-1/NQO-1 signaling. 6-Methoxyflavone induces S-phase arrest through the CCNA2/CDK2/p21CIP1 signaling pathway in HeLa cells. 6-Methoxyflavone inhibits NFAT Translocation into the nucleus and suppresses T cell activation. 6-Methoxyflavone partially restores chronic ethanol-induced behavioral deficits in mice. 6-Methoxyflavone antagonizes chronic constriction injury and diabetes associated neuropathic nociception expression. 6-Methoxyflavone can be used for the study of cancer, inflammation and neurological diseases.

Agrimonolide is a phenethyl isocoumarin compound discovered from Agrimonia pilosa, exhibiting anti-inflammatory, antioxidant, and anticancer activities. Agrimonolide inhibits NF-κB, MAPK, and TLR4-mediated neuroinflammatory signaling, suppresses Notch and JAK2/STAT3 signaling to modulate Th17/Treg balance and maintain the intestinal barrier. Agrimonolide decreases HIF1A expression, inhibits glycolysis, and induces ferroptosis and cell cycle arrest via the mTOR pathway in tumor models, thereby suppressing cancer cell viability, proliferation, and metastasis. Agrimonolide exerts hepatoprotective and anti-fibrotic effects by regulating bile acid transporter expression and reducing hepatic bile acid accumulation. Agrimonolide is used for research on ulcerative colitis, ovarian cancer, non-small cell lung cancer, cholestatic liver injury, and neuroinflammation.

Desethyl chloroquine diphosphate is a major desethyl metabolite of Chloroquine. Chloroquine diphosphate is an inhibitor of autophagy and toll-like receptors (TLRs). Desethyl chloroquine diphosphate possesses antiplasmodic activity.

TLR4/NF-κB-IN-1 (Compound 7x) is an orally available inhibitor that specifically targets the TLR4/NF-κB signaling pathway, offering anti-inflammatory effects and the ability to cross the blood-brain barrier. TLR4/NF-κB-IN-1 can reduce acute neuroinflammation in mice caused by LPS (HY-D1056) and downregulate the expression of TLR4, P-NF-κB and P-IκB-α proteins.

PROTAC IRAK4 degrader-13 (Degrader 1) is a selective IRAK4 PROTAC degrader with DC₅₀s of 0.86 and 1.1 nM for monocytes and lymphocytes in PBMCs, respectively. PROTAC IRAK4 degrader-13 significantly induces TIR signal activation, and inhibits the expression of circulating proinflammatory cytokines in Imiquimod (HY-B0180) induced psoriasis mice model. PROTAC IRAK4 degrader-13 can be used for TLR- and IL-1R-driven driven neutrophilic inflammation diseases like hidradenitis suppurativa (HS) and atopic dermatitis (AD) research. Pink: IRAK4 ligand; Blue: E3 ligase ligand; Black: linker

Tlr9 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Tlr9 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.