期刊
CANCER BIOLOGY & THERAPY
卷 6, 期 2, 页码 238-245出版社
TAYLOR & FRANCIS INC
DOI: 10.4161/cbt.6.2.3625
关键词
HepG2; RDH10 overexpression; cell growth arrest; p21; RAR beta; retinoic acid; HCC
类别
The constitutive over-expression of the retinol dehydrogenase 10 (RDH10) gene, involved in retinoic acid (RA) biosynthesis, produced in HepG2 cells a significant antiproliferative response, but not signs of apoptosis. An indirect assay based on the Chloramphenicol AcetylTransferase ( CAT) reporter gene driven by a retinoic acid responsive element ( RARE) suggests in genetically modified HepG2 cells an increase of the endogenous RA concentration. Furthermore, the growth arrest of HepG2 cells over expressing the RDH10 gene was associated with the upregulation and downregulation of, respectively, RAR beta/p21(Cip1) and CycE/CdK2 mRNAs. These results indicated that forced expression of RDH10 produces antiproliferative effects highly comparable to those achieved by retinoids treatment and thus the development of a gene therapy, finalized at the restoration of the enzymatic and receptorial machinery of the RA pathway, could be a possible curative strategy for hepatocellular carcinoma (HCC).
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