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자료유형
학술저널
저자정보
저널정보
대한약침학회 Journal of Pharmacopuncture Journal of Pharmacopuncture 제9권 제2호
발행연도
2006.1
수록면
5 - 16 (12page)

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Objective: It has long been known about the osteogenic effect of CPC-HAS on bone tissues. However, it has not been determined the effect of CPC-HAS on cancer cells. The purpose of this study is to screen the CPC-HAS mediated differentially expressed genes in cancer cells such as HepG2 hepatoma cells. Oligonucleotide microarray and proteomics approaches were employed to screen the differential expression genes. Methods: CPC-HAS was prepared by boiling and stored at -70℃ until use. Cells were treated with various concentrations of CPC-HAS (0.1, 0.5, 1.5, 10, 20㎎/㎖) for 24 h. Cell toxicity was tested by MTT assay. To screen the differentially expressed genes in cancer cells, cells were treated with 1.5㎎/㎖ of CPC-HAS. For oligonucleotide microarray assay, total RNA was used for gene expression analysis using oligonucleotide Genechip(Human genome U133 Plus 2.0., Affimatrix Co.). For proteomic analysis, total protein was analyzed by 2D gel electrophoresis and Q-TOF mass spectrometer. Results: It has no cytotoxic effects on both HepG2 cell in all concentrations(0.1, 0.5, 1.5, 10, 20㎎/㎖). In oligonucleotide microarray assay, the number of more than twofold differentially regulated known genes was 23 with 5 up-regulated and 18 down-regulated genes in HepG2 cells. In proteomic analysis, three spots were identified by 2D-gel electrophoresis and Q-TOF analysis. Two down-regulated proteins were aldehyde dehydrogenase 1 and enolase 1, and up-regulated protein was fatty acid binding protein 1 by 1.5㎎/㎖ of CPC-HAS. Discussion: This study showed the screening of CPC-HAS mediated differentially regulated genes using combined approaches of oligonucleotide microarray and proteomic analysis. The screened genes will be used for the better understanding of the therapeutic effects of CPC-HAS on cancer fields.

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