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-N0392
    Polygalasaponin F
    Inhibitor 99.85%
    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
  • HY-146195
    MAPK-IN-1
    Inhibitor
    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.
    MAPK-IN-1
  • HY-120149
    Inotodiol
    Inhibitor 98.29%
    Inotodiol activates p53 signaling pathway, inhibits MMP-2/9, and exhibits antitumor activity in cancer cell HeLa. Inotodiol inhibits the generation of ROS and exhibits antioxidant and neuroprotective effects. Inotodiol inhibits the activation of MAPK and NF-κB signaling pathway, and exhibits anti-inflammatory activity. Inotodiol inhibits TLR-4 mediated TNF-α production (IC50s in BMMC and BMDM is 0.7 μM and 3.0 μM), inhibits the degranulation in mast cell, exhibits anti-allergic activity. Inotodiol is orally active.
    Inotodiol
  • HY-137345
    DB-3-291
    Inhibitor 98.56%
    DB-3-291 is potent and selective PROTAC CSK degrader, with a Kd of 1 nM (Pink: CSK ligand (HY-131669); Blue: E3 ligase ligand (HY-103597); Black: linker (HY-N2407)).
    DB-3-291
  • HY-160227A
    ORN 06 sodium
    Activator
    ORN 06 (sodium) s a synthetic single-stranded U-rich RNA and contains 6 repeats of the UUGU sequence motif. The GU-rich oligoribonucleotides (ORNs) are able to stimulate TLR7.
    ORN 06 sodium
  • HY-145645
    Paridiprubart
    Inhibitor
    Paridiprubart (NI-0101) is a humanised anti-TLR4 monoclonal antibody. Paridiprubar inhibits the production of pro-inflammatory cytokines by monocytes from rheumatoid arthritis specimen induced by rheumatoid arthritis synovial fluid (RASF). Paridiprubart can be used for the study of rheumatoid arthritis.
    Paridiprubart
  • HY-103639A
    M62812
    Inhibitor 99.86%
    M62812 is a toll-like receptor 4 (TLR4) signaling inhibitor. M62812 inhibits endothelial and leukocyte activation and prevents lethal septic shock in mice. M62812 can reduces LPS-induced coagulation and inflammatory responses. M62812 can be used for the research of sepsis.
    M62812
  • HY-110207
    SM-324405
    Agonist 98.52%
    SM-324405 is a TLR7 agonistic antedrug (EC50 = 50 nM), with pEC50 values of 7.3 and 6.6 for human TLR7 and Rat TLR7, respectively. SM-324405 is used for immunoresearch of allergic diseases. An antedrug is defined as a locally active compound that is designed to be rapidly metabolized to an inactive form upon entry into the circulation and prevents systemic toxicity by losing its agonistic activity in a plasmatic environment.
    SM-324405
  • HY-100176
    PF-4878691
    Agonist 99.89%
    PF-4878691 (3M-852A) is an orally active TLR7 agonist. PF-4878691 has the innate immune response activity, antiviral efficacy against HCV, and can be used for the research of cancer.
    PF-4878691
  • HY-115400
    1V209
    Agonist 99.67%
    1V209 (TLR7 agonist T7) is a Toll-like receptor 7 (TLR7) agonist and has anti-tumor effects. 1V209 can be conjugated with various polysaccharides to improve its water solubility, and enhance its efficacy, and maintain low toxicity.
    1V209
  • HY-111786
    LHC-165
    Agonist ≥98.0%
    LHC-165 is a TLR7 agonist. LHC-165 has potential to used in study of solid tumors.
    LHC-165
  • HY-111358
    TLR7 agonist 1
    Agonist 98.19%
    TLR7 agonist 1 is a potent, selective and oral TLR7 agonist with an IC50 of 90 nM.
    TLR7 agonist 1
  • HY-107744
    Nalmefene
    Inhibitor 99.70%
    Nalmefene is a BBB-penetrable opioid receptor modulator. Nalmefene is an antagonist of MOR and DOR, and a partial agonist of KOR. Nalmefene has anti-inflammatory and neuroprotective activities. Nalmefene can be used in the research of reducing alcohol-dependent disorders.
    Nalmefene
  • HY-107352
    Fosfenopril
    Inhibitor 99.85%
    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
  • HY-156174
    E104
    Inhibitor 98.02%
    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.
    E104
  • HY-150746
    ODN 24991
    Inhibitor
    ODN 24991, a guanine-modified inhibitory oligonucleotide (INH-ODN), is a TLR3, TLR7 and TLR9 (Toll-like receptor) inhibitor, and its parent is INH-ODN 2088. ODN 24991 disrupts TLR3-, TLR7- and TLR9-mediated immune cell immune responses. ODN 24991 sequence: 5'-C-C-T-G-G-C-c7rGm-G-G-G-3'.
    ODN 24991
  • HY-111582
    BBIQ
    Agonist 99.85%
    BBIQ is a imidazoquinoline compound and a potent and selectively toll-like receptor 7 (TLR7) agonist with an EC50 of 59.1 nM for human TLR7. BBIQ is a powerful vaccine adjuvant that enhances innate immune responses.
    BBIQ
  • HY-150743A
    Biotin-labeled ODN 2395 sodium
    Biotin-labeled ODN 2395 (sodium), a C class oligodeoxynucleotide, is a TLR9 agonist. Biotin-labeled ODN 2395 (sodium) can be used to evaluate CpG ODN cellular uptake and localization using a biotin detection system and light microscopy.
    Biotin-labeled ODN 2395 sodium
  • HY-W008634
    Bropirimine
    Agonist 99.92%
    Bropirimine is a synthetic agonist for toll-like receptor 7 (TLR7). Bropirimine inhibits differentiation of osteoclast precursor cells into osteoclasts via TLR7-mediated production of IFN-β. Bropirimine is an orally active immunomodulator that has demonstrated anticancer activity in transitional cell carcinoma in situ (CIS) in both the bladder and upper urinary tract.
    Bropirimine
  • HY-D1056A4
    Lipopolysaccharides, from E. coli O128:B12
    Activator
    Lipopolysaccharides, from E. coli O128:B12 (LPS, from Escherichia coli (O128:B12)) are endotoxins and TLR4 activators extracted from Escherichia coli (E. coli O128:B12) and are classified as S (smooth) type LPS. Lipopolysaccharides, from E. coli O128:B12 possess the typical three-part structure: O-antigen, R3-type core oligosaccharide, and lipid A. Lipopolysaccharides, from E. coli O128:B12 activate TLR-4 in immune cells, can be used to construct animal models of neonatal brain inflammation, and may influence preterm birth in neonates.
    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 E. coli O128:B12
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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