Establishment of immortal hepatocytes from a CYP3A7-transgenic/p53-knockout mouse. 1995

M Shimoji, and K Hattori, and S Itoh, and K Nakayama, and M Katsuki, and S Aizawa, and T Yokoi, and T Kamataki
Division of Drug Metabolism, Faculty of Pharmaceutical Sciences, Hokkaido University, Japan.

Immortal hepatocytes were established from a CYP3A7-transgenic/p53-knockout mouse. The cells could be maintained with shorter doubling time after culture for 1 month. Detectable amounts of CYP3A7 mRNA and the activity of 7-propoxycoumarin O-depropylase, one of the representative CYP3A activities, were present in the immortal hepatocytes. Albumin mRNA, which is specifically expressed in the liver, remained in these cells.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008822 Mice, Transgenic Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN. Transgenic Mice,Founder Mice, Transgenic,Mouse, Founder, Transgenic,Mouse, Transgenic,Mice, Transgenic Founder,Transgenic Founder Mice,Transgenic Mouse
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D003577 Cytochrome P-450 Enzyme System A superfamily of hundreds of closely related HEMEPROTEINS found throughout the phylogenetic spectrum, from animals, plants, fungi, to bacteria. They include numerous complex monooxygenases (MIXED FUNCTION OXYGENASES). In animals, these P-450 enzymes serve two major functions: (1) biosynthesis of steroids, fatty acids, and bile acids; (2) metabolism of endogenous and a wide variety of exogenous substrates, such as toxins and drugs (BIOTRANSFORMATION). They are classified, according to their sequence similarities rather than functions, into CYP gene families (>40% homology) and subfamilies (>59% homology). For example, enzymes from the CYP1, CYP2, and CYP3 gene families are responsible for most drug metabolism. Cytochrome P-450,Cytochrome P-450 Enzyme,Cytochrome P-450-Dependent Monooxygenase,P-450 Enzyme,P450 Enzyme,CYP450 Family,CYP450 Superfamily,Cytochrome P-450 Enzymes,Cytochrome P-450 Families,Cytochrome P-450 Monooxygenase,Cytochrome P-450 Oxygenase,Cytochrome P-450 Superfamily,Cytochrome P450,Cytochrome P450 Superfamily,Cytochrome p450 Families,P-450 Enzymes,P450 Enzymes,Cytochrome P 450,Cytochrome P 450 Dependent Monooxygenase,Cytochrome P 450 Enzyme,Cytochrome P 450 Enzyme System,Cytochrome P 450 Enzymes,Cytochrome P 450 Families,Cytochrome P 450 Monooxygenase,Cytochrome P 450 Oxygenase,Cytochrome P 450 Superfamily,Enzyme, Cytochrome P-450,Enzyme, P-450,Enzyme, P450,Enzymes, Cytochrome P-450,Enzymes, P-450,Enzymes, P450,Monooxygenase, Cytochrome P-450,Monooxygenase, Cytochrome P-450-Dependent,P 450 Enzyme,P 450 Enzymes,P-450 Enzyme, Cytochrome,P-450 Enzymes, Cytochrome,Superfamily, CYP450,Superfamily, Cytochrome P-450,Superfamily, Cytochrome P450
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012333 RNA, Messenger RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm. Messenger RNA,Messenger RNA, Polyadenylated,Poly(A) Tail,Poly(A)+ RNA,Poly(A)+ mRNA,RNA, Messenger, Polyadenylated,RNA, Polyadenylated,mRNA,mRNA, Non-Polyadenylated,mRNA, Polyadenylated,Non-Polyadenylated mRNA,Poly(A) RNA,Polyadenylated mRNA,Non Polyadenylated mRNA,Polyadenylated Messenger RNA,Polyadenylated RNA,RNA, Polyadenylated Messenger,mRNA, Non Polyadenylated
D015660 7-Alkoxycoumarin O-Dealkylase A drug-metabolizing enzyme found in the hepatic, placental and intestinal microsomes that metabolizes 7-alkoxycoumarin to 7-hydroxycoumarin. The enzyme is cytochrome P-450- dependent. 7-Ethoxycoumarin O-Dealkylase,7-Ethoxycoumarin O-Deethylase,7-Ethoxycoumarin Dealkylase,7-Ethoxycoumarin Hydroxylase,7-Ethoxycoumarin Monooxygenase,7-Ethoxycoumarin O-De-Ethylase,7-Propoxycoumarin O-Depropylase,Cytochrome P-450-Dependent O-Dealkylase,Ethoxycoumarin Deethylase,Ethoxycoumarin O-Deethylase,7 Alkoxycoumarin O Dealkylase,7 Ethoxycoumarin Dealkylase,7 Ethoxycoumarin Hydroxylase,7 Ethoxycoumarin Monooxygenase,7 Ethoxycoumarin O De Ethylase,7 Ethoxycoumarin O Dealkylase,7 Ethoxycoumarin O Deethylase,7 Propoxycoumarin O Depropylase,Cytochrome P 450 Dependent O Dealkylase,Dealkylase, 7-Ethoxycoumarin,Deethylase, Ethoxycoumarin,Ethoxycoumarin O Deethylase,Hydroxylase, 7-Ethoxycoumarin,Monooxygenase, 7-Ethoxycoumarin,O-Deethylase, 7-Ethoxycoumarin,O-Depropylase, 7-Propoxycoumarin,P-450-Dependent O-Dealkylase, Cytochrome
D016158 Genes, p53 Tumor suppressor genes located on the short arm of human chromosome 17 and coding for the phosphoprotein p53. Genes, TP53,TP53 Genes,p53 Genes,Gene, TP53,Gene, p53,TP53 Gene,p53 Gene
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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