Isoglycycoumarin is a flavonoid isolated from the roots of Glycyrrhiza uralensis. Isoglycycoumarin is a highly selective probe for human cytochrome P450 2A6 (CYP2A6)[1][2].
Quinidine Monosulfate is an antiarrhythmic agent. Quinidine Monosulfate is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine Monosulfate is also a K+ channel blocker with an IC50 of 19.9 μM. Quinidine Monosulfate can be used for malaria research[1][2][3].
DMU2139 is a potent and specific CYP1B1 inhibitor, with IC50s of 9 nM and 795 nM for CYP1B1 and CYP1A1, respectively.
Stiripentol (STP) is an anticonvulsant agent, which can inhibit N-demethylation of CLB to NCLB mediatated by CYP3A4 (noncompetitively) and CYP2C19 (competitively) with Ki of 1.59±0.07 and 0.516±0.065 μM and IC50 of 1.58 and 3.29 μM, respectively.
(+)-Ketoconazole is an imidazole anti-fungal agent, a CYP3A4 inhibitor.Target: CYP3A4 (+)-Ketoconazole, an imidazole anti-fungal agent, has often produced features of androgen deficiency including decreased libido, gynecomastia, impotence, oligospermia, and decreased testosterone levels, in men being treated for chronic mycotic infections [1]. (+)-Ketoconazole also is a cytochrome P450 inhibitor [2].(+)-Ketoconazole (KTZ), on the antischistosomal potential of these quinolines against Schistosoma mansoni infection by evaluating parasitological, histopathological, and biochemical parameters. Mice were classified into 7 groups: uninfected untreated (I), infected untreated (II), infected treated orally with PZQ (1,000 mg/kg) (III), QN (400 mg/kg) (IV), KTZ (10 mg/kg)+QN as group IV (V), HF (400 mg/kg) (VI), and KTZ (as group V)+HF (as group VI) (VII). KTZ plus QN or HF produced more inhibition (P<0.05) in hepatic CYP450 (85.7% and 83.8%) and CYT b5 (75.5% and 73.5%) activities, respectively, than in groups treated with QN or HF alone. This was accompanied with more reduction in female (89.0% and 79.3%), total worms (81.4% and 70.3%), and eggs burden (hepatic; 83.8%, 66.0% and intestinal; 68%, 64.5%), respectively, and encountering the granulomatous reaction to parasite eggs trapped in the liver [3].Clinical indications: Candida infection; Dermatophytosis; Folliculitis FDA Approved Date: Toxicity: teratogenesis; liver injuries; adrenal gland problems
Bergapten is a natural anti-inflammatory and anti-tumor agent isolated from bergamot essential oil, other citrus essential oils and grapefruit juice. Bergapten is inhibitory towards mouse and human CYP isoforms.
Bergamottin is a potent and competitive CYP1A1 inhibitor with a Ki of 10.703 nM.
N-Nornuciferine is an aporphine alkaloid in lotus leaf that significantly inhibits CYP2D6 with IC50 and Ki of 3.76 and 2.34 μM, respectively.
PROTAC CYP1B1 degrader-1 (Compound 6C), a α-naphthoflavone chimera derivative, is able to eliminate cytochrome P450 (CYP)1B1-mediated drug resistance via targeted CYP1B1 degradation, with IC50s of 95.1 and 9838.6 nM for CYP1B1 and CYP1A2, respectively. PROTAC CYP1B1 degrader-1 can be used for the research of CYP1B1-overexpressing prostate cancer[1].
K777 is a potent, orally active and irreversible cysteine protease inhibitor. K777 is also a potent CYP3A4 inhibitor with an IC50 of 60 nM and a selective CCR4 antagonist featuring the potent chemotaxis inhibition. K777 irreversibly inhibits Cruzain, the major cysteine protease of Trypansoma cruzi, and cathepsins B and L. K777 is a broad-spectrum antiviral by targeting cathepsin-mediated cell entry. K777 inhibits SARS-CoV and EBOV pseudovirus entry with IC50 values of 0.68 nM and 0.87 nM, respectively[1][2][3].
Abiraterone is a potent, selective, and irreversible CYP17 inhibitor with IC50 of 2 to 4 nM.
AZD7325 is a potent and orally active partial selective PAM of GABAAα2 and Aα3 receptor (Ki=0.3 and 1.3 nM, respectively), and has less antagonistic efficacy at the Aα1 and Aα5 receptor subtypes[1][4]. AZD7325 is a moderate CYP1A2 and a potent CYP3A4 inducer in vitro[2]. AZD7325 has the potential for the investigation of anxiety and dravet syndrome[3]. PAM: positive allosteric modulator.
Tetrahydropiperine, a cyclohexyl analogue of piperine, is the first natural aryl pentanamide from Piper longum[1]. Tetrahydropiperine (compound 14) inhibits the cytochrome P450 (CYP) isoform CYP1A1/arylhydrocarbon hydroxylase (AHH; IC50=23 µM)[2].
7-Ethoxy-4-methylcoumarin is a coumarin derivative and can be used as a substrate probe of mammalian cytochromes P450 1A1, 2B4 and 2B6[1][2].
Galangin is an agonist/antagonist of the arylhydrocarbon receptor, and also shows inhibition of CYP1A1 activity.
SDZ285428 is a CYP51 inhibitor. SDZ285428 inhibits Trypanosoma cruzi (TC) CYP51 with I/E2 <1 (5 min) and I/E2=9 (1 h). SDZ285428 inhibits Trypanosoma brucei (TB) CYP51 with I/E2 <1 (5 min) and I/E2=35 (1 h)[1].
Revexepride is a highly selective 5-HT4 receptor agonist, and a potential inducer of CYP3A4 enzyme, used for the treatment of gastroesophageal reflux disease.
Chlormethiazole is an potent and orally active GABAA agonist[1]. Chlormethiazole inhibits cytochrome P450 isoforms: CYP2A6 and CYP2E1 in human liver microsomes. Chlormethiazole is an anticonvulsant agent and has the potential for treating convulsive status epilepticus[2].
Phortress is a high affinity AhR ligand that elicits antitumor activity by inducing transcription of CYP1A1[1][2].
ODM-204 is novel nonsteroidal dual inhibitor of both androgen receptor and CYP17A1 enzyme, with IC50s of 80 nM and 22 nM, respectively.
PC945 is a novel broad spectrum antifungal agent that potently inhibits Aspergillus fumigatus sterol 14α-demethylase (CYP51A and CYP51B) with IC50 of 0.23 and 0.22 uM, respectively; shows MIC values 0.032 to >8 ug/ml against 96 clinically isolated A. fumigatus strains, demonstrates activity against itraconazole-susceptible and -resistant A. fumigatus growth with IC50 of 0.0012 to 0.034 ug/ml; PC945 is a broad spectrum of pathogenic fungi with MIC 0.0078 to 2 ug/ml, and exhibits activity in vivo. Fungal Infection Phase 1 Clinical
Gemfibrozil 1-O-β-Glucuronide, a metabolite of Gemfibrozil (CI-719; HY-B0258), is a potent and competitive P450 (CYP) isoform CYP2C8 inhibitor with an IC50 of 4.07 μM[1][2].
Inz-1 is a potent and selective mitochondrial cytochrome bc1 inhibitor for yeast (IC50=8.092 μM) over humans (IC50=45.320 μM). Inz-1 reverses Fluconazole (HY-B0101) or other triazole antifungals’ resistance in the pathogenic fungus Candida albicans[1].
Phenyltoloxamine (Bistrimin) is an antihistamine agent with sedative and analgesic effects. Phenyltoloxamine also has potent Sigma-1 receptor binding affinity (Ki: 160 nM)[1][2][3].
Tebuconazole is an agricultural azole fungicide which can also inhibit CYP51 with IC50s of 0.9 and 1.3 μM for Candida albicans CYP51 (CaCYP51) and truncated Homo sapiens CYP51 (Δ60HsCYP51), respectively.
Nicotelline (Nicotellin) is a nicotine-related alkaloid, as well as a weak inhibitor of human cDNA-expressed cytochrome P-450 2A6 (CYP2A6). CYP2A6 mediates coumarin 7-hydroxylation, while Nicotelline fails to exhibit inhibition at 300 μM. Nicotelline can be used as a tracer and biomarker of particulate matter (PM) derived from tobacco smoke[1][2].
Furafylline is a potent and selective inhibitor of human cytochrome P450IA2 with an IC50 of 0.07 μM.
EMT inhibitor-2 (Compound 1) inhibits epithelial-mesenchymal transition (EMT) induced by substances such as IL-1β and TGF-β released from the immunocytes. EMT inhibitor-2 inhibits CYP3A4 testosteron and CYP2C9 with IC50s of 49.72 and 5.54 μM, respectively[1].
Dronedarone D6 hydrochloride is the deuterium labeled Dronedarone. Dronedarone hydrochloride, a derivative of Amiodarone (HY-14187), is a class III antiarrhythmic agent for the study of atrial fibrillation (AF) and atrial flutter. Dronedarone hydrochloride is a potent blocker of multiple ion currents, including potassium current, sodium current, and L-type calcium current, and exhibits antiadrenergic effects by noncompetitive binding to β-adrenergic receptors. Dronedarone hydrochloride is a substrate for and a moderate inhibitor of CYP3A4[1][2][3][4].