[Analysis of gene expression in primary hepatocellular carcinoma using differentially displayed reverse transcriptase polymerase chain reaction].
OBJECTIVE
The investigation of a specific tumor marker for hepatocellular carcinoma (HCC) is needed to examine the carcinogenesis and to select the patients for treatment options. The aim of this study was to find the genes related to HCC. We also examined the expression level of these genes in cancer cell lines and tissue specimens.


METHODS
Three pairs of HCC tissue and non-neoplastic hepatic tissue around the HCC were collected from three patients who underwent resection for HCC. Differential display reverse transcriptase-PCR (DD RT-PCR) using GeneFishingTM PCR was used to detect the differences in the gene expression between in HCC tissue and non-neoplatic tissue. Up- or down-regulated genes in HCC tissue were identified through BLAST searches after cloning and sequencing assays. Real-time RT-PCR assay was employed to detect the expression rate in 11 HCC tissues and human cancer cell lines.


RESULTS
Differentially expressed 21 genes were identified, and they were classified as genes involved in protein metabolism, ubiquitin-dependent protein catabolism, carbohydrate metabolism, lipid metabolism, DNA repair, and inflammatory response.


CONCLUSIONS
We identified differentially expressed genes in HCC, and these genes may play an important role in the study of hepatocarcinogenesis, development of biomarker, and target therapy for HCC.
Lee
Young Chun
YC
Department of Integrative Research Support Center, Korea.
Hur
Wonhee
W
Choi
Jung Eun
JE
Piao
Lian Shu
LS
Hong
Sung Woo
SW
Bae
Si Hyun
SH
Choi
Jong Young
JY
Yoon
Seung Kew
SK
D014408:Biomarkers, Tumor / Q000235:genetics / Q000378:metabolism*; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis / Q000235:genetics / Q000378:metabolism*; D045744:Cell Line, Tumor; D015536:Down-Regulation; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis / Q000235:genetics / Q000378:metabolism*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D015854:Up-Regulation
D014408:Biomarkers, Tumor