Commiphora myrrha (Nees) Engl. resin extracts induce phase-I cytochrome P450 2C8, 2C9, 2C19, and 3A4 isoenzyme expressions in human hepatocellular carcinoma (HepG2) cells
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چکیده
منابع مشابه
Cytotoxicity activity of extracts and compounds from Commiphora myrrha resin against human gynecologic cancer cells
The purpose of this report is to explore the cytotoxicity effects of extracts and compounds from Commiphora myrrha resin on human gynecologic cancer cells. The results showed that AE (85% EtOH extract), and petroleum ether extract (PE) from C. myrrha significantly inhibited cell proliferation of A2780, SK-OV-3, and Shikawa with dose-dependent relation in vitro. The inhibitory effects of AE and ...
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Hybridomas were isolated that produce 13 monoclonal antibodies (mAbs) that are specific and highly inhibitory to members of the human P450 2C subfamily, 2C8, 2C9, 2C9*2, and 2C19. Many of the mAbs to P450 2C8, 2C9, and 2C19 are specific and exhibit potent inhibitory activity (85-95%). mAb 281-1-1 specifically binds, immunoblots, and strongly inhibits the activity of P450 2C8. mAb 763-15-5 speci...
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The marked induction of cytochromes P450 such as CYP1A1 caused by polycyclic aromatic hydrocarbons (PAHs) like 3-methylcholanthrene (MC) is often accompanied by suppression of other hepatic P450s. The molecular mechanisms, functional consequences, and human relevance of P450 downregulation by PAHs are poorly understood. MC suppresses mRNA levels for CYP2C8, an important human P450, in cultured ...
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The amino acid residues affecting the substrate specificity of human cytochrome P450 CYP2C9 and CYP2C19 for their metabolic activities were investigated using chimeras and mutant enzymes, which were constructed by replacing the corresponding residues. Although CYP2C19 showed nearly the same tolbutamide hydroxylase activity as CYP2C9, the activities for the CYP2C19(H99I) mutant and the chimeras ...
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ژورنال
عنوان ژورنال: Saudi Pharmaceutical Journal
سال: 2021
ISSN: 1319-0164
DOI: 10.1016/j.jsps.2021.03.002