2. Signaling Pathways
  3. Immunology/Inflammation
  4. Toll-like Receptor (TLR)

Toll-like Receptor (TLR)

Toll-like Receptor (TLR)

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Toll-like receptors (TLRs) are a class of proteins that play a key role in the innate immune system. They are single, membrane-spanning, non-catalytic receptors usually expressed in sentinel cells such as macrophages and dendritic cells, that recognize structurally conserved molecules derived from microbes. Once these microbes have breached physical barriers such as the skin or intestinal tract mucosa, they are recognized by TLRs, which activate immune cell responses. The TLRs include TLR1, TLR2, TLR3, TLR4, TLR5, TLR6, TLR7, TLR8, TLR9, TLR10, TLR11, TLR12, and TLR13. Toll-Like Receptors (TLRs) play a critical role in the early innate immune response to invading pathogens by sensing microorganism and are involved in sensing endogenous danger signals. TLRs are evolutionarily conserved receptors are homologues of the Drosophila Toll protein, discovered to be important for defense against microbial infection. TLRs recognize highly conserved structural motifs known as pathogen-associated microbial patterns (PAMPs), which are exclusively expressed by microbial pathogens.

Toll-like Receptor (TLR) Isoform Specific Products:

Toll-like Receptor (TLR) Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-153840B
    ODN INH 18 triethylamine
    		99.59%
    ODN INH-18 triethylamine is a linear 24-mer class B INH-ODN in which the 5' INH-ODN 4084-F sequence was followed by a random stretch of 12 nucleotides lacking the ability to form significant secondary structures. ODN INH-18 triethylamine showes inhibitory potency for TLR9 ligand-induced IFN-α production.
    ODN INH 18 triethylamine
  • HY-145960
    MC-Val-Cit-PAB-Amide-TLR7 agonist 4
    		Agonist 99.39%
    MC-Val-Cit-PAB-Amide-TLR7 agonist 4 (example 15) is a HER2-TLR7 and HER2-TLR8 immune agonist conjugate.
    MC-Val-Cit-PAB-Amide-TLR7 agonist 4
  • HY-111792
    GSK1795091
    		Agonist
    GSK1795091 (CRX-601), an immunologic stimulator, is a synthetic TLR4 agonist. Antitumor activity. GSK1795091 can be used as a vaccine adjuvant to enhance both mucosal and systemic immunity to influenza virus vaccines. Not only, GSK1795091 inhibits tumor growth and increases the survival in mice model, but results in long term survival in influenza challenge model in mice.
    GSK1795091
  • HY-145961
    TLR7 agonist 4
    		Agonist 98.87%
    TLR7 agonist 4 (Compound 1.2) is a TLR7 agonist with an EC50 of 4.3 nM.
    TLR7 agonist 4
  • HY-W031727S
    Hydroxychloroquine-d4-1 sulfate
    		Inhibitor ≥98.0%
    Hydroxychloroquine-d4-1 (sulfate) is the deuterium labeled Hydroxychloroquine. Hydroxychloroquine is a synthetic antimalarial agent which can also inhibit Toll-like receptor 7/9 (TLR7/9) signaling. Hydroxychloroquine is efficiently inhibits SARS-CoV-2 infection in vitro.
    Hydroxychloroquine-d<sub>4</sub>-1 sulfate
  • HY-W097625
    6-Methoxyflavone
    		Inhibitor 99.87%
    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.
    6-Methoxyflavone
  • HY-RS14599
    TLR9 Human Pre-designed siRNA Set A
    		Inhibitor

    TLR9 Human Pre-designed siRNA Set A contains three designed siRNAs for TLR9 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
    TLR9 Human Pre-designed siRNA Set A
  • HY-145245
    TLR4-IN-C34-C2-amide-C6-OH
    		Inhibitor 99.62%
    TLR4-IN-C34-C2-amide-C6-OH is a linker that incorporates TLR4 inhibitor TLR4-IN-C34. TLR4-IN-C34 inhibits TLR4 in enterocytes and macrophages, and reduces systemic inflammation in mouse models of endotoxemia and necrotizing enterocolitis.
    TLR4-IN-C34-C2-amide-C6-OH
  • HY-P10897
    SjDX5-271
    		Inhibitor 98.90%
    SjDX5-271 is a small 3 kDa peptide. SjDX5-271 inhibits the TLR4/MyD88/NF-κB signaling pathway. SjDX5-271 induces cell polarization. SjDX5-271 alleviats hepatic inflammation. SjDX5-271 protects mice against liver ischemia-reperfusion injury.
    SjDX5-271
  • HY-150745
    ODN 24987
    		Inhibitor
    ODN 24987 is a Guanine-modified inhibitory oligonucleotides (ODN), targeting TLR9. ODN 24987 can inhibit IL-6 and IFN-α release. ODN 24987 can be used for research immune disorders. ODN 24987 sequence: 5’-C-C-T-G-G-C-c7G-G-G-G-3’.
    ODN 24987
  • HY-N11768
    4-Methoxylonchocarpin
    		Inhibitor 98.0%
    4-Methoxylonchocarpin is an orally active anti-inflammatory agent. 4-methoxylonchocarpin inhibits the binding of LPS to Toll-like Receptor (TLR) TLR4 to inhibit NF-κB activation and TNF Receptor and IL-6 expression. 4-Methoxylonchocarpin also inhibits the phosphorylation of TGF-beta activated kinase 1 and TNBS-induced expression of IL-1β, IL-17A, and TNF. 4-methoxylonchocarpin can improve 2,4, 6-trinitrobenzene sulfonic acid (TNBS)-induced colitis mouse model.
    4-Methoxylonchocarpin
  • HY-105070A
    Eritoran tetrasodium
    		Antagonist
    Eritoran tetrasodium (E5564) is a Toll-like receptor 4 (TLR4) antagonist. Eritoran tetrasodium protects mice against lethal influenza virus infection, such as Ebola virus (EBOV), Marburg virus (MARV). Eritoran tetrasodium decreases the level of granulocytosis, may alleviate the severity of the "cytokine storm". Eritoran tetrasodium inhibits pathogenesis of filovirus infection. Eritoran tetrasodium has anti-inflammatory activity.
    Eritoran tetrasodium
  • HY-RS14580
    TLR2 Human Pre-designed siRNA Set A
    		Inhibitor

    TLR2 Human Pre-designed siRNA Set A contains three designed siRNAs for TLR2 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
    TLR2 Human Pre-designed siRNA Set A
  • HY-150739
    ODN 21158
    		Inhibitor 98.16%
    ODN 21158 is a potent G-modified TLR3 and TLR9 inhibitor. ODN 21158 shows no cytotoxic. ODN 21158 inhibits IFN-α secretion in a dose dependent manner.
    ODN 21158
  • HY-P5117
    TAT-CIRP
    		Inhibitor 98.32%
    TAT-CIRP is a a small peptide, refers to Trans-trans-activating (Tat)-cold-inducible RNA binding protein. TAT-CIRP is an inhibitor of myeloid differentiation protein 2 (MD2). TAT-CIRP exhibits robust neuroprotection against ischemic and hemorrhagic stroke in mice.
    TAT-CIRP
  • HY-154438
    RDR 02308
    		Inhibitor 98.0%
    RDR 02308 is a TLR4-MyD88 binding inhibitor that inhibits full-length β-lactamase.
    RDR 02308
  • HY-N3097
    Pellitorine
    		Inhibitor 99.84%
    Pellitorine is a bioactive natural amide compound. Pellitorine can competitively antagonize the activation of TRPV1 by Capsaicin (HY-10448), thereby reducing pain signal transmission. Pellitorine improves cognitive dysfunction by upregulating the BDNF-ERK1/2-CREB and Nrf2-HO-1 pathways. Pellitorine exerts anti-inflammatory and anti-sepsis effects by inhibiting the release of high mobility group protein B1 (HMGB1) and the expression of RAGE/TLR4. Pellitorine exerts its antithrombotic effect by prolonging the clotting time, inhibiting the activity of clotting factors and thrombin. Pellitorine inhibits lipid peroxidation and resists ferroptosis by upregulating GPX4 and DHODH. Pellitorine kills Aedes aegypti mosquito larvae by inhibiting V-type H⁺-ATPase and aquaporin 4 (AaAQP4). Pellitorine exhibits anti-cancer activity (e.g., leukemia and breast cancer) and has inhibitory effects on certain bacteria.
    Pellitorine
  • HY-146245B
    FITC-labeled ODN 1826 sodium
    		Agonist
    FITC-labeled ODN 1826 (sodium), a class B CpG ODN (oligodeoxynucleotide), is a TLR9 agonist. FITC-labeled ODN 1826 (sodium) can be used to evaluate CpG ODN cellular uptake and localization by confocal laser-scanning microscopy (excitation 495 nm, emission 520 nm) or flow cytometry.
    FITC-labeled ODN 1826 sodium
  • HY-N8413
    Chlojaponilactone B
    		Inhibitor 98.0%
    Chlojaponilactone B is a lindenane-type sesquiterpenoid with anti-inflammatory properties. Chlojaponilactone B suppresses inflammatory responses by inhibiting TLR4 and subsequently decreasing reactive oxygen species (ROS) generation, downregulating the NF-κB, thus reducing the expression of the pro-inflammatory cytokines iNOS, NO, COX-2, IL-6 and TNF-α.
    Chlojaponilactone B
  • HY-N15936
    a15:0-i15:0 PE
    		Agonist
    a15:0-i15:0 PE is a diacyl phosphatidylethanolamine with two branched chains. a15:0-i15:0 PE is a non-canonical TLR2-TLR1 heterodimer agonist and has immunogenic activity. a15:0-i15:0 PE activates T cells and DC signaling and shows anti-inflammatory activity. a15:0-i15:0 PE induces TNFα and IL-6 production. a15:0-i15:0 PE is a the major component (approximately 50%) of A. muciniphila’s lipid membrane.
    a15:0-i15:0 PE
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
Toll-like Receptor (TLR) Isoform Comparison

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