1. Signaling Pathways
  2. Immunology/Inflammation
  3. Aryl Hydrocarbon Receptor

Aryl Hydrocarbon Receptor

AhR

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 (72):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-124421
    5F-203
    Inducer 99.04%
    5F-203 (NSC-703786) is a cytotoxic molecule that forms DNA adducts and cell cycle arrest. 5F-203 induces aryl hydrocarbon receptor (AhR) signaling and elevates expression of CYP1A1. 5F-203 also increases the levels of reactive oxygen species as well as activates JNK, ERK, and p38.
    5F-203
  • HY-N8572
    3',4'-Dimethoxyflavone
    Antagonist 98.76%
    3',4'-Dimethoxyflavone is a lipophilic flavone, can be isolated from the leaves of Primula veris. 3',4'-Dimethoxyflavone can reduce the synthesis and accumulation of PARP and protect cortical neurones against cell death induced by Parthanatos. 3',4'-Dimethoxyflavone is also an aryl hydrocarbon receptor antagonist in human breast cancer cells. 3',4'-Dimethoxyflavone can promote the proliferation of human hematopoietic stem cells. 3',4'-Dimethoxyflavone has various biological activities, including antioxidant, anti-cancer, anti-inflammatory, anti-atherogenic, hypolipidaemic, and neuroprotective or neurotrophic effects.
    3',4'-Dimethoxyflavone
  • 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.
    ANI-7
  • HY-118780
    CHD-5
    Antagonist ≥98.0%
    CHD-5 is a potent AhR (aryl hydrocarbon receptor) antagonist.
    CHD-5
  • HY-N6264
    26-Deoxyactein
    Inhibitor 99.76%
    26-Deoxyactein is a constituent isolated from Cimicifuga racemosa, prevents TCDD-induced osteoblasts damage. 26-Deoxyactein inhibits increased AhR, CYP1A1 and ERK levels.
    26-Deoxyactein
  • HY-100242
    Mivotilate
    Activator 99.58%
    Mivotilate is a nontoxic, potent activator of the aryl hydrocarbon receptor (AhR), and acts as a hepatoprotective agent.
    Mivotilate
  • HY-118438
    10-Cl-BBQ
    Agonist 99.48%
    10-Cl-BBQ is a high affinity AhR ligand with immunosuppressive activity. 10-Cl-BBQ promotes cytosol to nuclear translocation of AhR and activates the AhR-regulated reporter gene at nanomolar concentrations.
    10-Cl-BBQ
  • HY-W007355S1
    Skatole-d8
    Activator 98.50%
    Skatole-d8 is the deuterium labeled Skatole. Skatole is produced by intestinal bacteria, regulates intestinal epithelial cellular functions through activating aryl hydrocarbon receptors and p38[1].
    Skatole-d<sub>8</sub>
  • HY-136220A
    AHR antagonist 5 hemimaleate
    Antagonist
    AHR antagonist 5 hemimaleate, a potent and orally active aryl hydrocarbon receptor (AHR) antagonist, has an IC50 of < 0.5 µΜ. AHR antagonist 5 hemimaleate significantly inhibits tumor growth combined with checkpoint inhibitor anti-PD-1 (WO2018195397, example 39).
    AHR antagonist 5 hemimaleate
  • HY-W011338S
    Benzyl butyl phthalate-d4
    Benzyl butyl phthalate-d4 is the deuterium labeled Benzyl butyl phthalate[1]. Benzyl butyl phthalate, a member of phthalic acid esters (PAEs), can trigger the migration and invasion of hemangioma (HA) cells via upregulation of Zeb1. Benzyl butyl phthalate activates aryl hydrocarbon receptor (AhR) in breast cancer cells to stimulate SPHK1/S1P/S1PR3 signaling and enhances formation of metastasis-initiating breast cancer stem cells (BCSCs)[2][3][4].
    Benzyl butyl phthalate-d<sub>4</sub>
  • HY-135671
    AhR modulator-1
    Modulator
    AhR modulator-1 (compound 6-MCDF) is a selective and orally active aryl hydrocarbon receptor (AhR) modulator. AhR modulator-1 inhibits metastasis, in part, by inhibiting prostatic VEGF production prior to tumor formation. AhR modulator-1 also possess anti-estrogenic properties in rat uterus.
    AhR modulator-1
  • HY-135830
    AHR antagonist 4
    Antagonist
    AHR antagonist 4 is a 2-heteroaryl-3-oxo-2,3-dihydropyridazine-4-carboxamide compound and a potent aryl hydrocarbon receptor (AHR) antagonist extracted from patent WO2018146010A1, example 293, has an IC50 of 82.2 nM. AHR antagonist 4 has anti-cancer effects.
    AHR antagonist 4
  • HY-N12537A
    (2R,3S)-PD-1/PD-L1-IN-38
    Antagonist
    (2R,3S)-PD-1/PD-L1-IN-38 (Compound (±)-13e) is an orally active Ah receptor (AhR) antagonist with in vivo and in vitro anticancer activity. (2R,3S)-PD-1/PD-L1-IN-38 promotes the secretion of INF-γ by CD8+T cells and inhibits the signal transduction of PD-1/PD-L1.
    (2R,3S)-PD-1/PD-L1-IN-38
  • HY-B0311CS
    (Rac)-Carbidopa-13C,d3
    (Rac)-Carbidopa-13C,d3 is the 13C- and deuterium labeled DL-Carbidopa[1].
    (Rac)-Carbidopa-<sup>13</sup>C,d<sub>3</sub>
  • HY-B0311S1
    Carbidopa-d3-1
    Modulator
    Carbidopa-d3-1 is the deuterium labeled Carbidopa (HY-B0311). Carbidopa, a peripheral decarboxylase inhibitor, can be used for the research of Parkinson's disease. Carbidopa is a selective aryl hydrocarbon receptor (AhR) modulator. Carbidopa inhibits pancreatic cancer cell and tumor growth.
    Carbidopa-d<sub>3</sub>-1
  • HY-N10123
    Indolokine A5
    Agonist
    Indolokine A5, a catabolite of L-cysteine, is a potent AhR agonist.
    Indolokine A5
  • HY-158168
    AhR agonist 6
    Agonist
    AhR agonist 6 (Compound 6) is an agonist for aryl hydrocarbon receptor (AhR), with an EC50 of 0.01 nM.
    AhR agonist 6
  • HY-15001A
    Stemregenin 1 hydrochloride
    Antagonist
    Stemregenin 1 hydrochloride is a purine derivative that antagonizes aryl hydrocarbon receptor signaling in CD34+ cells. IC50 The value is 127 nM. Stemregenin 1 hydrochloride can be used to expand the pluripotency of hematopoietic stem cells (HSC) in stem cell studies.
    Stemregenin 1 hydrochloride
  • HY-155061
    hCYP1B1-IN-1
    Antagonist
    hCYP1B1-IN-1 (compound B18) is a hCYP1B1 inhibitor (IC50=3.6 nM),as well as an antagonist of Aryl Hydrocarbon Receptor. hCYP1B1-IN-1 exhibtis suitable metabolic stability and good cell-permeability. hCYP1B1-IN-1 inhibits migration of MCF-7 cells.
    hCYP1B1-IN-1
  • 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. 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.
    Flavipin