2. Immunology/Inflammation
  3. Aryl Hydrocarbon Receptor

Aryl Hydrocarbon Receptor

Aryl Hydrocarbon Receptor (AhR or AHR) is a cytoplasmic receptor and transcription factor that belongs to the family of basic helix-loop-helix transcription factors. The AhR is activated or inhibited by various types of exogenous and endogenous ligands. AhR is an important factor in immunity and tissue homeostasis, and structurally diverse compounds from the environment, diet, microbiome, and host metabolism can induce AhR activity, such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD).

Endogenous ligands include indigoids, heme metabolites, eicosanoids, tryptophan derivatives, and equilenin. Exogenous ligands include polycyclic aromatic hydrocarbons, polychlorinated biphenyls, natural compounds, and small molecule compounds. The different structures and properties of AhR ligands mean that when they combine with AhR they have distinct biological effects.

Unliganded AHR is sequestered in the cytoplasm by chaperone proteins including Hsp90, AHR-interacting protein (AIP), and p23. Upon ligand binding, AHR translocates to the nucleus and heterodimerizes with ARNT. The AHR-ARNT complex regulates transcription by binding with high affinity to specific DNA sequences termed aryl hydrocarbon response elements located in the regulatory regions of target genes including CYP1A1, CYP1B1, and TIPARP.

Aryl Hydrocarbon Receptor Related Products (113):

Cat. No. Product Name Effect Purity
  • HY-12684
    CH-223191 Antagonist 99.96%
    CH-223191 is a potent and specific antagonist of aryl hydrocarbon receptor (AhR). CH-223191 inhibits TCDD-mediated nuclear translocation and DNA binding of AhR, and inhibits TCDD-induced luciferase activity with an IC50 of 0.03 μM[1].
  • HY-12028
    PD98059 Antagonist 99.96%
    PD98059 is a potent and selective MEK inhibitor with an IC50 of 5 µM. PD98059 binds to the inactive form of MEK, thereby preventing the activation of MEK1 (IC50 of 2-7 µM) and MEK2 (IC50 of 50 µM) by upstream kinases. PD98059 is a ERK1/2 signaling inhibitor. PD98059 is a ligand for the aryl hydrocarbon receptor (AHR), and suppresses TCDD binding (IC50 of 4 μM) and AHR transformation (IC50 of 1 μM). PD98059 also inhibits Mycobacterium bovis Bacillus CalmetteGuerin (BCG)-induced autophagy[1][2][3].
  • HY-104026
    L-Kynurenine Agonist 99.93%
    L-Kynurenine is a metabolite of the amino acid L-tryptophan. L-Kynurenine is an aryl hydrocarbon receptor agonist.
  • HY-15484
    Pifithrin-α hydrobromide Agonist
    Pifithrin-α hydrobromide is a p53 inhibitor which blocks its transcriptional activity and prevents cells from apoptosis. Pifithrin-α hydrobromide is also an aryl hydrocarbon receptor (AhR) agonist.
  • HY-12451
    FICZ Agonist
    FICZ is a potent aryl hydrocarbon receptor (AhR) agonist with a Kd of 70 pM.
  • HY-W014701R
    1,4-Dihydroxy-2-naphthoic acid (Standard) Activator
  • HY-W028393R
    Indole-3-pyruvic acid (Standard) Agonist
  • HY-N10295
    Flavipin Agonist
    Flavipin is an aryl hydrocarbon receptor (Ahr) agonist that induces the expression of Ahr downstream genes in mouse CD4+ T cells and CD11b+ macrophages. Flavipin inhibits the stabilizing function of Arid5a on Il23a 3′UTR, a newly identified target mRNA[1]. Flavipin exhibits the DPPH free radical scavenging ability with IC50 value of 7.2 μM, and has potent α-glucosidase inhibition with IC50 value of 33.8 μM[2].
  • HY-112629
    PDM2 Antagonist 98.76%
    PDM2 is a selective, high-affinity aryl hydrocarbon receptor (AhR) antagonist with an Ki of 1.2±0.4 nM.
  • HY-W517092
    1,2,3,4,7,8,9-Heptachlorodibenzofuran Inhibitor
    1,2,3,4,7,8,9-Heptachlorodibenzofuran (1,2,3,4,7,8,9-HpCDF) is a compound that induces the expression of CYP1A1 and CYP1B1 genes in human peripheral blood lymphocytes, while also promoting the expression of the aryl hydrocarbon receptor repressor (AhRR). 1,2,3,4,7,8,9-Heptachlorodibenzofuran can increase ethoxyresorufin-O-deethylase (EROD) activity in isolated human peripheral blood lymphocytes in a concentration-dependent manner, which serves as a marker of CYP1A1 activity. Furthermore, 1,2,3,4,7,8,9-Heptachlorodibenzofuran exhibits immunosuppressive effects by reducing the number of splenic plaque-forming cells in mice and increasing aryl hydrocarbon hydroxylase (AHH) activity in liver microsomes of mice injected with sheep red blood cells. 1,2,3,4,7,8,9-Heptachlorodibenzofuran can be used in research in the fields of immunology, metabolic diseases, and environmental toxicology[1][2][3][4].
  • HY-117102
    ANI-7 Activator 98.13%
    ANI-7 is an activator of aryl hydrocarbon receptor (AhR) pathway. ANI-7 inhibits the growth of multiple cancer cells, and potently and selectively inhibits the growth of MCF-7 breast cancer cells with a GI50 of 0.56 μM. ANI-7 induces CYP1-metabolizing mono-oxygenases by activating AhR pathway, and also induces DNA damage, checkpoint Kinase 2 (Chk2) activation, S-phase cell cycle arrest, and cell death in sensitive breast cancer cell lines[1][2][3].
  • HY-W775354
    1,2,3,4,7,8-Hexachlorodibenzofuran Inhibitor
    1,2,3,4,7,8-Hexachlorodibenzofuran (1,2,3,4,7,8-HxCDF) promotes the gene expressions of CYP1A1, CYP1B1, and aryl hydrocarbon receptor repressor (AhRR) in human peripheral blood lymphocytes (PBLs). 1,2,3,4,7,8-Hexachlorodibenzofuran activates the ethoxyresorufin-Odeethylase, achieves 20% of the maximum response caused by TCDD with a BMR20TCDD of 0.115-0.143 nM[1].
  • HY-N6264R
    26-Deoxyactein (Standard) Inhibitor
    26-Deoxyactein (Standard) is the analytical standard of 26-Deoxyactein. This product is intended for research and analytical applications. 26-Deoxyactein is a constituent isolated from Cimicifuga racemosa, prevents TCDD-induced osteoblasts damage. 26-Deoxyactein inhibits increased AhR, CYP1A1 and ERK levels[1].
  • HY-134217
    KYN-101 Inhibitor 98.17%
    KYN-101 is a potent, selective and orally active AHR inhibitor. KYN-101 decreases the CYP1A1 mRNA expression. KYN-101 shows anti-cancer activity[1].
  • HY-104026S5
    L-Kynurenine-13C10 sulfate hydrate
    L-Kynurenine-13C10 sulfate hydrate is the C13 labeled L-Kynurenine sulfate hydrate. L-Kynurenine is an aryl hydrocarbon receptor agonist[1].
  • HY-163665
    AHR antagonist 8 Antagonist
    AHR antagonist 8 (compound SG-02) is a regulator of utrophin, a homolog of dystrophin, and an AhR antagonist (Kd: 41.68 nM). Studies have shown that 800 nM of AHR antagonist 8 can upregulate utrophin by 2.7 times. AHR antagonist 8 also stimulates increased MyHC expression, suggesting that it has the potential to enhance myogenesis. After ADME evaluation, AHR antagonist 8 also has a certain oral bioavailability[1].
  • HY-W517076
    1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin Agonist
    1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin (1,2,3,6,7,8-HxCDD) is an AHR agonist, with reported gene assay EC50 values of 5.4 nM at 4 hours and 9.3 nM at 8 hours. 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin (at doses of 0.5 and 2 µg/kg) has been shown to reduce the production of antibodies against sheep red blood cells in mice. 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin is an environmental pollutant, found in animal feed and detected in the air near municipal waste incinerators[1].
  • HY-102023
    GNF351 Antagonist 99.90%
    GNF351 is a full aryl hydrocarbon receptor (AHR) antagonist. GNF351 competes with a photoaffinity AHR ligand for binding to the AHR with an IC50 of 62 nM. GNF351 is minimal toxicity in mouse or human keratinocytes[1].
  • HY-N0170
    Indole-3-carbinol Agonist
    Indole-3-carbinol (I3C) inhibits NF-κB activity and also is an Aryl hydrocarbon receptor (AhR) agonist, and an inhibitor of WWP1 (WW domain-containing ubiquitin E3 ligase 1).
  • HY-109044R
    Tapinarof (Standard) Agonist
    Tapinarof (Standard) is the analytical standard of Tapinarof. This product is intended for research and analytical applications. Tapinarof (WBI-1001) is a natural aryl hydrocarbon receptor (AhR) agonist with an EC50 of 13 nM. Tapinarof resolves skin inflammation in mice[1].