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Takagi K, Takayama T, Midorikawa Y, Hasegawa H, Ochiai T, Moriguchi M, Higaki T, Soma M, Nagase H, Fujiwara K. Cell division cycle 34 is highly expressed in hepatitis C virus-positive hepatocellular carcinoma with favorable phenotypes. Biomed Rep 2017; 7:41-46. [PMID: 28685058 DOI: 10.3892/br.2017.912] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 04/27/2017] [Indexed: 12/29/2022] Open
Abstract
Despite tremendous efforts to develop curative agents, there are few effective drugs for the treatment of hepatocellular carcinoma (HCC). This is predominantly due to the variations in individual HCC cases. As numerous HCC cases have no mutations in known tumor-associated genes, identification of novel genes involved in the development and progression of human cancers is considered to be an urgent issue. In the present study, surgical specimens of HCC were analyzed for the expression patterns of ubiquitin-conjugating enzyme, cell division cycle 34 (CDC34), which is hypomethylated in its promoter region and exhibits elevated expression levels in mouse skin tumors. The results of the current study clearly indicated that the elevated CDC34 expression level in cancerous regions was significantly associated with favorable clinicopathological features, such as reduced alanine aminotransferase (ALT) levels and histological grades. Similarly, a higher T/N ratio, which is the ratio of CDC34 expression in HCCs to that in non-tumorous tissues, was significantly associated with favorable features, such as a lower indocyanin green retention rate after 15 min (ICG15R), reduced α-fetoprotein and smaller tumor size. These results indicate that the CDC34 expression level in HCC is a marker for predicting the HCC prognosis and that CDC34 acts as a tumor suppressor.
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Affiliation(s)
- Keiko Takagi
- Department of Digestive Surgery, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
| | - Tadatoshi Takayama
- Department of Digestive Surgery, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
| | - Yutaka Midorikawa
- Department of Digestive Surgery, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
| | - Hiromasa Hasegawa
- Department of Oral Pathology, Matsumoto Dental University, Shiojiri, Nagano 399-0781, Japan
| | - Takanaga Ochiai
- Department of Oral Pathology, Matsumoto Dental University, Shiojiri, Nagano 399-0781, Japan
| | - Masamichi Moriguchi
- Department of Digestive Surgery, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
| | - Tokio Higaki
- Department of Digestive Surgery, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
| | - Masayoshi Soma
- Department of General Medicine, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
| | - Hiroki Nagase
- Laboratory of Cancer Genetics, Chiba Cancer Center Research Institute, Chiba 260-8717, Japan
| | - Kyoko Fujiwara
- Department of General Medicine, Nihon University School of Medicine, Itabashi, Tokyo 173-8610, Japan
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