CYP3A4-IN-2 is a specific inhibitor of cytochrome P450 3A4 (CYP3A4) with the IC50 value of 0.055 μM. CYP3A4-IN-2 is a ritonavir analogue with increased hydrophobicity of the R2 side group and stronger inhibitory effect compared to ritonavir. CYP3A4-IN-2 can be used as an antiviral agent and immunosuppressants[1].
AS1810722 is an orally active and potent STAT6 inhibitor with an IC50 of 1.9 nM. AS1810722 shows a good profile of CYP3A4 inhibition. AS1810722, a derivative of fused bicyclic pyrimidine, has the potential for allergic diseases such as asthma and atopic diseases research[1].
PPOH, a fatty acid derivative, is a selective cyclooxygenase (COX) inhibitor that inhibits arachidonic acid cyclooxygenase activity in renal cortical microsomes. In addition, PPOH acts on CYP4A2 and CYP4A3 with the IC50 values of 22 μM and 6.5 μM, respectively[1].
Linderane, isolated from the root of Lindera strychnifolia, is an irreversible inhibitor cytochrome P450 2C9 (CYP2C9). Linderane has the potential to relieve pain and cramp[1].
β-Amyrenonol (11-Oxo-β-amyrin), an oleanolic-type triterpenoid in licorice roots, is a precursor of Glycyrrhetinic acid. β-Amyrenonol has anti-proliferative and anti-inflammatory activities, and β-Amyrenonol could function as the skeleton for the synthesis of many triterpenoids[1][2].
Methoxsalen (8-Methoxypsoralen) is a potent tricyclic furocoumarin suicide inhibitor of CYP (cytochrome P-450), is an agent used to treat psoriasis, eczema, vitiligo and some cutaneous Lymphomas in conjunction with exposing the skin to sunlight.Target: CYP (cytochrome P-450)Methoxsalen is a drug used to treat psoriasis, eczema, vitiligo, and some cutaneous lymphomas in conjunction with exposing the skin to UVA light from lamps or sunlight. Methoxsalen modifies the way skin cells receive the UVA radiation, allegedly clearing up the disease. The dosage comes in 10 mg tablets, which are taken in the amount of 30 mg 75 minutes before a PUVA (psoralen + UVA) light treatment. Chemically, methoxsalen belongs to a class of organic natural molecules known asfuranocoumarins. They consist of coumarin annulated with furan.Administration of intra peritoneal (ip) methoxsalen significantly increased nicotine's Cmax, prolonged the plasma half-life (fourfold decrease) of nicotine, and increased its area under the curve (AUC) compared with ip vehicle treatment. Methoxsalen pretreatment prolonged the duration of nicotine-induced antinociception and hypothermia (15mg/kg, po) for periods up to 6- and 24-hr postnicotine administration, respectively.
Prothioconazole is a triazolinthione fungicide. Prothioconazole is a CYP51 inhibitor[1].
Azamulin is an irreversible, highly selective inhibitior of human CYP3Aa. Azamulin has CYP3A inhibition activity with IC50 values range from 0.03-0.24 μM. Azamulin can be used for the research of metabolism and antiinfection[1].
Verapamil ((±)-Verapamil) is a calcium channel blocker and a potent and orally active first-generation P-glycoprotein (P-gp) inhibitor. Verapamil also inhibits CYP3A4. Verapamil has the potential for high blood pressure, heart arrhythmias and angina treatment[1][2][3].
NSC-609249 hydrochloride is an impurity of Verapamil (HY-14275). Verapamil is a calcium channel blocker and a potent and orally active first-generation P-glycoprotein (P-gp) inhibitor[1][2].
EDP-305 is an orally active, potent and selective farnesoid X receptor (FXR) agonist, with EC50 values of 34 nM (chimeric FXR in CHO cells) and 8 nM (full-length FXR in HEK cells). EDP-305 shows a potent and consistent antifibrotic effect. EDP-305 can be used for primary biliary cholangitis (PBC) and non-alcoholic steatohepatitis (NASH) research[1][2].
RG-12525 is a a specific, competitive and orally effective antagonist of the peptidoleukotrienes, LTC4, LTD4 and LTE4, inhibiting LTC4-, LTD4- and LTE4-inducd guinea pig parenchymal strips contractions, with IC50s of 2.6 nM, 2.5 nM and 7 nM, respectively; RG-12525 is also a peroxisome proliferator-activated receptor gamma (PPAR-gamma) agonist with IC50 of appr 60 nM and a potent inhibitor of CYP3A4, with a Ki value of 0.5 µM.
Fenofibrate-d6 is the deuterium labeled Fenofibrate. Fenofibrate is a selective PPARα agonist with an EC50 of 30 μM. Fenofibrate also inhibits human cytochrome P450 isoforms, with IC50s of 0.2, 0.7, 9.7, 4.8 and 142.1 μM for CYP2C19, CYP2B6, CYP2C9, CYP2C8, and CYP3A4, respectively.
CYP1B1-IN-1 (Compound 9e) is a selective cytochrome P450 1B1 (CYP1B1) inhibitor with an IC50 of 0.49 nM[1].
2,6-Dimethylquinoline, a nature constituent from the roots of Peucedantu praeruptorum, is a CYP1A2 inhibitor with an IC50 of 3.3 µM. 2,6-Dimethylquinoline also inhibits CYP2B6 activity with an IC50 of 480 µM[1][2][3].
Talarozole R enantiomer is a potent and selective inhibitor of cytochrome P450 26-mediated breakdown of endogenous all-trans retinoic acid for the treatment of psoriasis and acne.Target: CYP26in vitro: Talarozole R enantiomer treatment increased the mRNA expression of CRABP2, KRT4, CYP26A1 and CYP26B1 dose dependently, and decreased theexpression of KRT2 and IL-1alpha compared with vehicle-treated skin. No mRNA change in retinol-metabolizing enzymes was obtained. There was no induction of epidermal thickness or overt skin inflammation in talarozole-treated skin. Immunofluorescence analysis confirmed an upregulation of KRT4 protein, but no upregulation of CYP26A1 and CYP26B1 expression was detected [1] [2].in vivo: Talarozole R enantiomer slightly diffused into the skin only when dissolved in propylene glycol, isopropyl myristate or ethanol. Although only 0.1% of the dose applied was found in the skin itself after 12-24 h, this was sufficient to achieve local concentrations well above the half-maximal inhibitory concentration value for talarozole. The distribution of talarozole within the skin was investigated: 80% was located in the epidermis, while the remaining 20% was found in the dermis [3].
Dibenzylfluorescein (DBF) is a fluorogenic probe (Fluoresecent dye) that acts as a substrate for specific cytochrome P450 (CYP) isoforms, including CYP3A4, CYP2C8, CYP2C9, CYP2C19, and aromatase (CYP19). Dibenzylfluorescein is typically used near its Km value of 0.87-1.9 µM (Ex=485nm，Em=535nm). Dibenzylfluorescein is used to detect changes in CYP catalytic activity caused by drugs or disease[1][2][3][4].
Fenofibrate-d4 is the deuterium labeled Fenofibrate[1]. Fenofibrate is a selective PPARα agonist with an EC50 of 30 μM. Fenofibrate also inhibits human cytochrome P450 isoforms, with IC50s of 0.2, 0.7, 9.7, 4.8 and 142.1 μM for CYP2C19, CYP2B6, CYP2C9, CYP2C8, and CYP3A4, respectively[2][3].
1-Aminobenzotriazole is a nonspecific and irreversible inhibitor of cytochrome P450 (P450).
5,7,2',6'-Tetrahydroxyflavone is a natural flavonoid that inhibits hepatic testosterone 6β-hydroxylation (CYP3A4) activity with an IC50 of 7.8 μM[1].
Gentiopicroside, a naturally occurring iridoid glycoside, inhibits P450 activity, with an IC50 and a Ki of 61 µM and 22.8 µM for CYP2A6; Gentiopicroside has antianti-inflammatoryand antioxidative effects.
Oteseconazole (VT-1161) is an orally active anti-fungal agent, potently binds to and inhibits Candida albicans CYP51 (Kd, <39 nM), shows no obvious effect on human CYP51[1][2].
Metyrapone (Su-4885) Tartrate is a potent and orally active 11β-hydroxylase inhibitor and an autophagy activator, also inhibits the production of aldosterone. Metyrapone Tartrate inhibits synthesis of endogenous adrenal corticosteroid, decreases glucocorticoid levels, and also affects behavior and emotion. In addition, Metyrapone Tartrate increases the efficiency of autophagic process via downregulation of mTOR pathway, and interacts with Pseudomonas putida cytochrome P-450. Metyrapone Tartrate can be used for researching Cushing's syndrome and depression[1][2][3][4][5].
(±)-N-3-Benzylnirvanol is a racemic mixture of (+)-N-3-Benzylnirvanol and (-)-N-3-Benzylnirvanol. (+)-N-3-Benzylnirvanol and (–)-N-3-Benzylnirvanol are potent and selective cytochrome P450 inhibitors with Ki values of 0.25 and 5.3 μM for CYP2C19, respectively[1].
Veledimex racemate is the racemate of veledimex. Veledimex is an orally available, small-molecule activator ligand for the RheoSwitch Therapeutic System.
CYP4Z1-IN-1 (compound 7c) is a potent CYP4Z1 inhibitor, with an IC50 of 41.8 nM. CYP4Z1-IN-1 decreases the expression of breast CSCs stemness markers, spheroid formation, and metastatic ability as well as tumor-initiation capability in a concentration-dependent manner in vitro and in vivo[1].