IR@PKUHSC  > 北京大学基础医学院  > 药理学系
学科主题基础医学
The Role of CYP3A4 mRNA Transcript with Shortened 3 ′-Untranslated Region in Hepatocyte Differentiation, Liver Development, and Response to Drug Induction
Li, Dan1,2; Gaedigk, Roger3; Hart, Steven N.1; Leeder, J. Steven3; Zhong, Xiao-bo1,2
刊名MOLECULAR PHARMACOLOGY
2012
DOI10.1124/mol.111.074393
81期:1页:86-96
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Pharmacology & Pharmacy
研究领域[WOS]Pharmacology & Pharmacy
关键词[WOS]3&prime ; UNTRANSLATED REGIONS ; CYTOCHROME-P-450 NIFEDIPINE OXIDASE ; POLYADENYLATION SITE SELECTION ; ALTERNATIVE POLYADENYLATION ; HEPARG CELLS ; EXPRESSION ; SEQUENCE ; GENES ; SEQ ; XENOBIOTICS
英文摘要

Cytochrome P450 3A4 (CYP3A4) metabolizes more than 50% of prescribed drugs. The expression of CYP3A4 changes during liver development and may be affected by the administration of some drugs. Alternative mRNA transcripts occur in more than 90% of human genes and are frequently observed in cells responding to developmental and environmental signals. Different mRNA transcripts may encode functionally distinct proteins or contribute to variability of mRNA stability or protein translation efficiency. The purpose of this study was to examine expression of alternative CYP3A4 mRNA transcripts in hepatocytes in response to developmental signals and drugs. cDNA cloning and RNA sequencing (RNA-Seq) were used to identify CYP3A4 mRNA transcripts. Three transcripts were found in HepaRG cells and liver tissues: one represented a canonical mRNA with full-length 3′-untranslated region (UTR), one had a shorter 3′-UTR, and one contained partial intron-6 retention. The alternative mRNA transcripts were validated by either rapid amplification of cDNA 3′-end or endpoint polymerase chain reaction (PCR). Quantification of the transcripts by RNA-Seq and real time quantitative PCR revealed that the CYP3A4 transcript with shorter 3′-UTR was preferentially expressed in developed livers, differentiated hepatocytes, and in rifampicin- and phenobarbital-induced hepatocytes. The CYP3A4 transcript with shorter 3′-UTR was more stable and produced more protein compared with the CYP3A4 transcript with canonical 3′-UTR. We conclude that the 3′-end processing of CYP3A4 contributes to the quantitative regulation of CYP3A4 gene expression through alternative polyadenylation, which may serve as a regulatory mechanism explaining changes of CYP3A4 expression and activity during hepatocyte differentiation and liver development and in response to drug induction.

语种英语
WOS记录号WOS:000298413500010
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/58602
Collection北京大学基础医学院_药理学系
作者单位1.Univ Kansas, Med Ctr, Dept Pharmacol Toxicol & Therapeut, Kansas City, KS 66160 USA
2.Peking Univ, Sch Basic Med Sci, Dept Pharmacol, Beijing 100871, Peoples R China
3.Childrens Mercy Hosp & Clin, Dept Pediat, Div Clin Pharmacol & Med Toxicol, Kansas City, MO USA
Recommended Citation
GB/T 7714
Li, Dan,Gaedigk, Roger,Hart, Steven N.,et al. The Role of CYP3A4 mRNA Transcript with Shortened 3 ′-Untranslated Region in Hepatocyte Differentiation, Liver Development, and Response to Drug Induction[J]. MOLECULAR PHARMACOLOGY,2012,81(1):86-96.
APA Li, Dan,Gaedigk, Roger,Hart, Steven N.,Leeder, J. Steven,&Zhong, Xiao-bo.(2012).The Role of CYP3A4 mRNA Transcript with Shortened 3 ′-Untranslated Region in Hepatocyte Differentiation, Liver Development, and Response to Drug Induction.MOLECULAR PHARMACOLOGY,81(1),86-96.
MLA Li, Dan,et al."The Role of CYP3A4 mRNA Transcript with Shortened 3 ′-Untranslated Region in Hepatocyte Differentiation, Liver Development, and Response to Drug Induction".MOLECULAR PHARMACOLOGY 81.1(2012):86-96.
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