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.


Anti-infection >
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Apoptosis >
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Immunology/Inflammation >
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JAK/STAT Signaling >
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Metabolic Enzyme/Protease >
15-PGDH 5 alpha Reductase 5-Lipoxygenase Acetyl-CoA Carboxylase Acyltransferase Adenosine Deaminase Adenosine Kinase Aldehyde Dehydrogenase (ALDH) Aldose Reductase Aminopeptidase Angiotensin-converting Enzyme (ACE) ATGL ATP Citrate Lyase Carbonic Anhydrase Carboxypeptidase Cathepsin CETP COMT Cytochrome P450 Dipeptidyl Peptidase Dopamine β-hydroxylase E1/E2/E3 Enzyme Elastase Enolase FAAH FABP Factor Xa Farnesyl Transferase Fatty Acid Synthase (FAS) FXR Glucokinase GSNOR Gutathione S-transferase HCV Protease Hexokinase HIF/HIF Prolyl-Hydroxylase HIV Integrase HIV Protease HMG-CoA Reductase (HMGCR) HSP Indoleamine 2,3-Dioxygenase (IDO) Isocitrate Dehydrogenase (IDH) Lactate Dehydrogenase LXR MAGL Mineralocorticoid Receptor Mitochondrial Metabolism MMP Nampt NEDD8-activating Enzyme Neprilysin PAI-1 PDHK PGC-1α Phosphatase Phosphodiesterase (PDE) Phospholipase Procollagen C Proteinase Proteasome Pyruvate Kinase RAR/RXR Renin ROR Ser/Thr Protease SGK Stearoyl-CoA Desaturase (SCD) Thrombin Tryptophan Hydroxylase Tyrosinase Xanthine Oxidase
Neuronal Signaling >
5-HT Receptor AChE Adenosine Kinase Amyloid-β Beta-secretase CaMK CGRP Receptor COMT Dopamine Receptor Dopamine Transporter FAAH GABA Receptor GlyT iGluR Imidazoline Receptor mAChR Melatonin Receptor Monoamine Oxidase nAChR Neurokinin Receptor Opioid Receptor Serotonin Transporter γ-secretase
NF-κB >
NF-κB IKK Keap1-Nrf2 MALT1
PI3K/Akt/mTOR >
Akt AMPK ATM/ATR DNA-PK GSK-3 MELK mTOR PDK-1 PI3K PI4K PIKfyve PTEN
PROTAC >
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Protein Tyrosine Kinase/RTK >
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Stem Cell/Wnt >
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TGF-beta/Smad >
TGF-beta/Smad PKC ROCK TGF-β Receptor
Vitamin D Related >
VD/VDR
Others >
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Okanin

Okanin, effective constituent of the flower tea Coreopsis tinctoria, attenuates LPS-induced microglial activation through inhibition of the TLR4/NF-κB signaling pathways[1].

  • CAS Number: 484-76-4
  • MF: C15H12O6
  • MW: 288.25
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.584g/cm3
  • Boiling Point: 638ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 353.7ºC

3M-011

A potent TLR7/8 agonist and cytokine inducer; stimulates type I interferon (IFN) and other cytokines such as TNF-alpha, IL-12, and IFN-gamma from rat peripheral blood mononuclear cells; induces IL-12 and COX-2 expression in mDC from HIV+ and HIV- individuals, and inhibits H3N2 influenza viral replication in the nasal cavity; potentiates NK cytotoxicity, and shows antitumor effects in scid/B6 mice and scid/NOD mice.

  • CAS Number: 642473-62-9
  • MF: C18H25N5O3S
  • MW: 391.488
  • Catalog: Influenza Virus
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 624.7±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 331.6±34.3 °C

MD2-IN-1

MD2-IN-1 is an inhibitor of Myeloid differentiation protein 2 (MD2) with a KD of 189  μM for the recombinant human MD2 (rhMD2).

  • CAS Number: 111797-22-9
  • MF: C20H22O6
  • MW: 358.39
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Loxoribine

Loxoribine (7-Allyl-8-oxoguanosine) is a guanosine analog with anti-viral and anti-tumor activities. Loxoribine is an orally bioavailable and selective Toll-like receptor (TLR) 7 agonist[1][2][3].

  • CAS Number: 121288-39-9
  • MF: C13H17N5O6
  • MW: 339.30400
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.92g/cm3
  • Boiling Point: 591.8ºC at 760mmHg
  • Melting Point: 227-230ºC(lit.)
  • Flash Point: 311.7ºC

Procyanidin B1

Procyanidin B1 is a polyphenolic flavonoid isolated from commonly eaten fruits, binds to TLR4/MD-2 complex, and has anti-inflammatory activity.

  • CAS Number: 20315-25-7
  • MF: C30H26O12
  • MW: 578.520
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 955.3±65.0 °C at 760 mmHg
  • Melting Point: 231~232℃
  • Flash Point: 531.6±34.3 °C

Toll-like receptor modulator

Toll-like receptor modulator is a modulator of TLR7/8, which modulates immune function.

  • CAS Number: 926927-42-6
  • MF: C15H13F5N2O2
  • MW: 348.26800
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.41 g/cm3
  • Boiling Point: 403ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: N/A

Cobitolimod sodium

Cobitolimod sodium is a DNA oligonucleotide agonist of TLR-9 with anti-inflammatory activity. Cobitolimod sodium inhibits Th17 cells and induces anti-inflammatory FoxP3 and IL-10 expression, inhibiting the IL-17 signaling pathway[1].

  • CAS Number: 1527479-55-5
  • MF: C185H215N73O105P18S6Na18
  • MW: 6320.80
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TLR4-IN-C34

TLR4-IN-C34 is an orally active TLR4 inhibitor and reduces systemic inflammation in models of endotoxemia and necrotizing enterocolitis[1][2].

  • CAS Number: 40592-88-9
  • MF: C17H27NO9
  • MW: 389.398
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 519.8±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 268.2±30.1 °C

ODN 21158

ODN 21158 is a potent G-modified TLR3 andTLR9inhibitor. ODN 21158 shows no cytotoxic. ODN 21158 nhibits IFN-α secretion in a dose dependent manner[1].

  • CAS Number: 1964506-31-7
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

DSR 6434

DSR-6434 is a potent and selective Toll-like receptor 7 (TLR7) agonist, with EC50s of 7.2 nM and 4.6 nM for human and mice TLR7, respectively. DSR-6434 has a strong antitumor effect[1][2].

  • CAS Number: 1059070-10-8
  • MF: C19H28N8O2
  • MW: 400.478
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TLR7 agonist 16

TLR7 agonist 16 (compound 16d) is a highly potent TLR7 agonist with an EC50 of 18 nM. TLR7 agonist 16 potently induces the activation of mouse macrophages and hPBMCs at low-nanomolar concentrations[1].

  • CAS Number: 2832199-56-9
  • MF: C25H29N5O2
  • MW: 431.53
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Polyinosinic-polycytidylic acid sodium

Polyinosinic-polycytidylic acid sodium (Poly(I:C) sodium) is a synthetic analog of double-stranded RNA and an agonist of toll-like receptor 3 (TLR3) and retinoic acid inducible gene I (RIG-I)-like receptors (RIG-I and MDA5). Polyinosinic-polycytidylic acid sodium can be used as a vaccine adjuvant to enhance innate and adaptive immune responses, and to alter the tumor microenvironment. Polyinosinic-polycytidylic acid sodium can directly trigger cancer cells to undergo apoptosis[1][2].

  • CAS Number: 42424-50-0
  • MF: C19H27N7NaO16P2
  • MW: 694.4
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Guignardone L

Guignardone L is a metabolite isolated from the endophytic fungus Guignardia mangiferae with toll-like receptor 3 regulating activity[1].

  • CAS Number: 1821386-10-0
  • MF: C17H24O4
  • MW: 292.37
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

E6446

E6446 is a potent and orally acitve TLR7 and TLR9 antagonist, used in the research of deleterious inflammatory responses.

  • CAS Number: 1219925-73-1
  • MF: C27H35N3O3
  • MW: 449.58500
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Gardiquimod

Gardiquimod, an imidazoquinoline analog, is a TLR7/8 agonist. Gardiquimod could inhibit HIV-1 infection of macrophages and activated peripheral blood mononuclear cells (PBMCs). Gardiquimod specifically activates TLR7 when used at concentrations below 10 μM[1][2].

  • CAS Number: 1020412-43-4
  • MF: C17H23N5O
  • MW: 313.39700
  • Catalog: HIV
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Benzaldehyde, 4-[[6-amino-7,8-dihydro-2-(2-methoxyethoxy)-8-oxo-9H-purin-9-yl]methyl]-

UC-1V150 is a specific TLR7 (Toll-like receptor) agonist that stimulates cellular immune responses and has anti-tumor activity. UC-1V150 can be used to synthesize ISAC (Immune-Stimulating Antibody Conjugates) molecule[1][2].

  • CAS Number: 927822-45-5
  • MF: C16H17N5O4
  • MW: 343.33728
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Chloroquine diphosphate

Chloroquine (diphosphate) is an antimalarial and anti-inflammatory drug widely used to treat malaria and rheumatoid arthritis. Chloroquine is an inhibitor of autophagy and toll-like receptors (TLRs).

  • CAS Number: 50-63-5
  • MF: C18H32ClN3O8P2
  • MW: 515.862
  • Catalog: HIV
  • Density: N/A
  • Boiling Point: 460.6ºC at 760 mmHg
  • Melting Point: 200 °C (dec.)(lit.)
  • Flash Point: 232.3ºC

Cavrotolimod

Cavrotolimod is an immunostimulatory spherical nucleic acid (SNA) modified with type B CpG oligonucleotides designed to agonize TLR9 and elicit immune responses useful in oncology applications.

  • CAS Number: 2378664-12-9
  • MF: C300H423N71O161P26S23
  • MW: 9142.88
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TLR7 agonist 15

TLR7 agonist 15 (compound 16b) is a highly potent TLR7 agonist with an EC50 of 18 nM. TLR7 agonist 15 potently induces the activation of mouse macrophages and hPBMCs at low-nanomolar concentrations[1].

  • CAS Number: 2832199-53-6
  • MF: C26H31N5O
  • MW: 429.56
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TLR7/8 agonist 7

TLR7/8 agonist 7 (compound 10) is a TLR7/8 agonist. TLR7/8 agonist 7 activates a variety of immune cells and it can be used to synthesize immune stimulating antibody conjugate (ISAC) molecules. TLR7/8 agonist 7 can be used for the research of immunity[1].

  • CAS Number: 2567953-47-1
  • MF: C26H37N7O2
  • MW: 479.62
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Agatolimod

Agatolimod (ODN 2006), a class B ODN (oligodeoxynucleotide), is a TLR9 agonist. Agatolimod is also an optimal CpG sequence for humans. Agatolimod stimulates very strong production of NO2 and IL-6 in HD11 cells. Agatolimod can be used for breast cancer research. Sequence: 5'-tcgtcgttttgtcgttttgtcgtt-3'[1][2].

  • CAS Number: 525625-52-9
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MPLA (synthetic) Sterile Solution

Monophosphoryl lipid A (Glucopyranosyl lipid A) is a toll-like receptor 4 agonist. Monophosphoryl lipid A is derived from the cell wall of nonpathogenic Salmonella. Monophosphoryl lipid A can be used for the research of immunization and vaccine[1].

  • CAS Number: 1246298-63-4
  • MF: C96H184N3O22P
  • MW: 1763.469
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

TH 1020

TH1020 is a potent and selective toll-like receptor 5 (TLR5)/flagellin complex antagonist with an IC50 of 0.85 μM. TH1020 inhbits flagellin-induced TLR5 signaling. TH1020 is inactive against TLR2, TLR3, TLR4, TLR7 and TLR8[1].

  • CAS Number: 1841460-82-9
  • MF: C23H15N7S2
  • MW: 453.54
  • Catalog: Bacterial
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Eritoran

Eritoran is a Toll-like receptor 4 (TLR4) antagonist. Eritoran protects mice against lethal influenza virus infection, such as Ebola virus (EBOV), Marburg virus (MARV). Eritoran decreases the level of granulocytosis, may alleviate the severity of the "cytokine storm". Eritoran inhibits pathogenesis of filovirus infection[1].

  • CAS Number: 185955-34-4
  • MF: C66H122N2Na4O19P2
  • MW: 1401.58000
  • Catalog: Toll-like Receptor (TLR)
  • Density: 1.14
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Imiquimod maleate

Imiquimod maleate is an immune response modifier that acts as a toll-like receptor 7agonist.

  • CAS Number: 896106-16-4
  • MF: C18H20N4O4
  • MW: 356.376
  • Catalog: Autophagy
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ODN 1668

ODN 1668, a class B CpG ODN (oligodeoxynucleotide), is a TLR-9 agonist. ODN 1668 is an immunostimulatory sequence and can be used as vaccine adjuvant. Sequence: 5'-tccatgacgttcctgatgct-3’[1][2].

  • CAS Number: 1186063-66-0
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Imiquimod (hydrochloride)

Imiquimod hydrochloride is an immune response modifier that acts as a toll-like receptor 7agonist.

  • CAS Number: 99011-78-6
  • MF: C14H17ClN4
  • MW: 276.76500
  • Catalog: Autophagy
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Agatolimod sodium

Agatolimod sodium (ODN 7909) is a class B CpG ODN and is a TLR9 agonist. Agatolimod sodium can be used as vaccine adjuvant. Agatolimod sodium can be used for the research of cancer. Sequence: 5’-TCGTCGTTTTGTCGTTTTGTCGTT-3’[1][2].

  • CAS Number: 541547-35-7
  • MF:
  • MW:
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

L6H21

L6H21, a derivative of chalcone, is an orally active and potent MD-2 (myeloid differentiation factor 2) inhibitor. L6H21 inhibits TLR4-NF-κB signaling and NLRP3 inflammasome activation in macrophages. L6H21 inhibits EtOH + LPS-induced apoptosis and mitochondrial damage in RAW264.7 cells. L6H21 effectively inhibits EtOH + LPS-induced hepatic fat accumulation and liver injury. L6H21 shows neuroprotective effect in a model of prediabetes[1][2].

  • CAS Number: 24533-47-9
  • MF: C18H18O4
  • MW: 298.33
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MD2-TLR4-IN-1

MD2-TLR4-IN-1 (compound 22m) is an inhibitor of myeloid differentiation protein 2/toll-like receptor 4 (MD2-TLR4) complex, inhibiting lipopolysaccharides (LPS)-induced expression of tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) in macrophages with IC50 values of 0.89 μM and 0.53 μM, respectively[1].

  • CAS Number: 2249801-12-3
  • MF: C22H14Cl2N4O
  • MW: 421.28
  • Catalog: Toll-like Receptor (TLR)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A