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

Toll-like Receptor (TLR)

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-P2036
    FSL-1
    Agonist
    FSL-1, a bacterial-derived toll-like receptor 2/6 (TLR2/6) agonist, enhances resistance to experimental HSV-2 infection.
    FSL-1
  • HY-148511
    Vidutolimod
    Agonist
    Vidutolimod (CMP-001) is a CpG-A oligodeoxynucleotide. Vidutolimod is a Toll-like receptor 9 (TLR9) agonist, which activates plasmacytoid dendritic cells (pDCs) and triggers interferon alpha (IFNα) release, leading to a cascade of anti-tumor immune effects.
    Vidutolimod
  • HY-168159
    TLR7 agonist 27
    Agonist
    TLR7 agonist 27 (compound 24) is a potent TLR7 agonist with an EC50 of 238.1 nM. TLR7 agonist 27 shows weak agonistic activity against NOD2 (nucleotide-binding oligomerization domain 2) (EC50 of 6.2 μM). TLR7 agonist 27 is a potent immunostimulant, and can be used as a vaccine adjuvant and/or immunotherapeutic.
    TLR7 agonist 27
  • HY-RS14591
    Tlr6 Mouse Pre-designed siRNA Set A
    Inhibitor

    Tlr6 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Tlr6 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.

    Tlr6 Mouse Pre-designed siRNA Set A
    Tlr6 Mouse Pre-designed siRNA Set A
  • HY-RS14577
    Tlr1 Mouse Pre-designed siRNA Set A
    Inhibitor

    Tlr1 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Tlr1 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.

    Tlr1 Mouse Pre-designed siRNA Set A
    Tlr1 Mouse Pre-designed siRNA Set A
  • HY-N0392R
    Polygalasaponin F (Standard)
    Inhibitor
    Polygalasaponin F (Standard) is the analytical standard of Polygalasaponin F. This product is intended for research and analytical applications. Polygalasaponin F, an oleanane-type triterpenoid saponin extracted from Polygala japonica, decreases the release of the inflammatory cytokine tumor necrosis factor a (TNFa). Polygalasaponin F reduces neuroinflammatory cytokine secretion through the regulation of the TLR4-PI3K/AKT-NF-kB signaling pathway .
    Polygalasaponin F (Standard)
  • HY-107352R
    Fosfenopril (Standard)
    Inhibitor
    Fosfenopril (Standard) is the analytical standard of Fosfenopril. This product is intended for research and analytical applications. Fosfenopril (Fosinoprilat) is a potent angiotensin converting enzyme (ACE) inhibitor. Fosfenopril alleviates lipopolysaccharide (LPS)-induced inflammation by inhibiting TLR4/NF-κB signaling in monocytes.
    Fosfenopril (Standard)
  • HY-N7088R
    Raffinose (Standard)
    Inhibitor
    Raffinose (Standard) is the analytical standard of Raffinose. This product is intended for research and analytical applications. Raffinose (Melitose) regulates intestinal flora, inhibits TLR4-MyD88-NF-κB signaling pathway, and activates Nrf2 signaling pathway. Raffinose exhibits anti-inflammatory, antioxidant, and immunomodulatory activities. Raffinose is orally active.
    Raffinose (Standard)
  • HY-D1056C4
    Lipopolysaccharides, from S. enterica serotype abortus equi
    Activator
    Lipopolysaccharides, from S. enterica (Salmonella enterica) serotype Abortusequi are lipopolysaccharide endotoxins and TLR-4 activators derived from the Abortusequi serotype of S. enterica, classified as a mutated R-type LPS, which can activate pathogen-associated molecular patterns (PAMP) of the immune system and induce cellular secretion of migrasomes. Lipopolysaccharides, from S. enterica serotype abortus equi consist of core oligosaccharide (core oligosaccharide) and lipid A (Lipid A). S. enterica serotype Abortusequi is a major pathogen causing abortion in mares and is also associated with neonatal sepsis, multiple abscesses, orchitis, and polyarthritis in equids. It is primarily grouped based on lipopolysaccharides (O-antigen) and flagellin (H-antigen).
    It is recommended to prepare a stock solution of ≥2 mg/mL and ensure that it is fully mixed and dissolved. Due to the adsorption characteristics of LPS, low adsorption centrifuge tubes should be used for aliquoting and storage.
    Lipopolysaccharides, from S. enterica serotype abortus equi
  • HY-153900
    TLR8 agonist 6
    Agonist
    TLR8 agonist 6 (Compound A) is a TLR8 agonist, with an EC50 of 0.052 μM. TLR8 agonist 6 induces IL-12p40 production in human PBMC (EC50: 0.031 μM). TLR8 agonist 6 can be used in the research of virus resistance, infection resistance, autoimmunity, tumor, etc.
    TLR8 agonist 6
  • HY-N12110
    SMU-CX1
    Inhibitor
    SMU-CX1 is a specific TLR3 inhibitor (IC50: 0.11 μM) with IC50 ranging from 0.14-0.33 μM against multiple influenza A virus subtypes. SMU-CX1 inhibits the viral PB2 and NP proteins with an IC50 of 0.43 μM for SARS-CoV-2 activity. SMU-CX1 also inhibits inflammatory factors in host cells, including IFN-β, IP-10, and CCL-5.
    SMU-CX1
  • HY-150738A
    Biotin-labeled ODN 2088 sodium
    Biotin-labeled ODN 2088 (sodium) is a potent TLR3, TLR7 and TLR9 inhibitor. Biotin-labeled ODN 2088 (sodium) can be used to evaluate CpG ODN cellular uptake and localization using a biotin detection system and light microscopy.
    Biotin-labeled ODN 2088 sodium
  • HY-P2358A
    PSMα3 TFA
    Inhibitor
    PSMα3 TFA is a peptide for manipulating DCs to become tolerogenic for DC vaccination strategies. PSMα3 TFA penetrates and modulates human monocyte-derived DCs by altering the TLR2- or TLR4-induced maturation, inhibiting pro- and anti-inflammatory cytokine production and reducing antigen uptake. PSMα3 TFA is an important toxin released by the most virulent strains of methicillin-resistant Staphylococcus aureus (MRSA).
    PSMα3 TFA
  • HY-135811
    Desethyl chloroquine
    Inhibitor
    Desethyl chloroquine is a major desethyl metabolite of Chloroquine. Chloroquine diphosphate is an inhibitor of autophagy and toll-like receptors (TLRs). Desethyl chloroquine possesses antiplasmodic activity.
    Desethyl chloroquine
  • HY-B0730R
    Pamidronate disodium pentahydrate (Standard)
    Antagonist
    Pamidronate (disodium pentahydrate) (Standard) is the analytical standard of Pamidronate (disodium pentahydrate). This product is intended for research and analytical applications. Pamidronate disodium pentahydrate, the second-generation nitrogen-containing bisphosphonate, is an inhibitor of bone loss. Pamidronate disodium pentahydrate significantly inhibits subchondral bone loss in early osteoarthritis by upregulating the expression of osteoprotegerin in cartilage and subchondral bone, and inhibiting the expression of RANKL and MMP-9 in both tissues, as well as TLR-4 in cartilage, thereby alleviating cartilage degeneration. Additionally, Pamidronate disodium pentahydrate can inhibit the signaling of Wnt and β-catenin, and is applicable for research on osteoporosis and osteosarcoma.
    Pamidronate disodium pentahydrate (Standard)
  • HY-P10586
    Macrophage-activating lipopeptide 2
    Activator
    Macrophage-activating lipopeptide 2 (MALP-2) is an agonist of Toll like receptors TLR-2/TLR-6. Macrophage-activating lipopeptide-2 can enhance endothelial nitric oxide synthase (eNOS) phosphorylation and endothelial cell release of NO, thereby improving vasodilation. Macrophage-activating lipopeptide-2 can enhance endothelial adhesion of white blood cells and improve perfusion recovery and collateral growth in the hind limbs of hypercholesterolemic Apoe deficient mice undergoing experimental femoral artery ligation (FAL).
    Macrophage-activating lipopeptide 2
  • HY-D1056C5
    Lipopolysaccharides, from S. enterica serotype minnesota Re 595 (Re mutant)
    Ligand
    Lipopolysaccharides (LPS), from S. enterica (Salmonella enterica) serotype minnesota Re 595 (Re mutant) is prepared from Salmonella enterica strain Re 595 (Re mutant). The structure in the LPS of strain Re 595 was shown to induce secretion and aggregation in human platelets.
    It is recommended to prepare a stock solution of ≥2 mg/mL and ensure that it is fully mixed and dissolved. Due to the adsorption characteristics of LPS, low adsorption centrifuge tubes should be used for aliquoting and storage.
    Lipopolysaccharides, from S. enterica serotype minnesota Re 595 (Re mutant)
  • HY-17589S
    Chloroquine-d5 diphosphate
    Inhibitor
    Chloroquine-d5 (diphosphate) is the deuterium labeled Chloroquine (phosphate). Chloroquine phosphate is an antimalarial and anti-inflammatory agent widely used to treat malaria and rheumatoid arthritis. Chloroquine phosphate is an autophagy and toll-like receptors (TLRs) inhibitor. Chloroquine phosphate is highly effective in the control of SARS-CoV-2 (COVID-19) infection in vitro (EC50=1.13 μM).
    Chloroquine-d<sub>5</sub> diphosphate
  • HY-RS14576
    TLR1 Human Pre-designed siRNA Set A
    Inhibitor

    TLR1 Human Pre-designed siRNA Set A contains three designed siRNAs for TLR1 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.

    TLR1 Human Pre-designed siRNA Set A
    TLR1 Human Pre-designed siRNA Set A
  • HY-150215A
    ODN 105870 sodium
    Inhibitor
    ODN 105870 sodium, a G-modified inhibitory oligonucleotide (INH-ODN), is a selective TLR7 inhibitor. ODN 105870 sodium can be uesd for inflammatory immune responses research.
    ODN 105870 sodium
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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