論文 - 詳細
| RRC ID | 42825 |
|---|---|
| 著者 | Tani Y, Akiyama Y, Fukamachi H, Yanagihara K, Yuasa Y. |
| タイトル | Transcription factor SOX2 up-regulates stomach-specific pepsinogen A gene expression. |
| ジャーナル | J Cancer Res Clin Oncol |
| Abstract |
PURPOSE:Transcription factor SOX2 is expressed in normal gastric mucosae but not in the normal colon. We aimed to clarify the role of SOX2 with reference to pepsinogen expression in the gastrointestinal epithelium. METHODS:We analyzed expression of SOX2 and pepsinogens, differentiation markers of the stomach, in ten gastric cancer (GC) and ten colorectal cancer (CRC) cell lines. The effects of over-expression and down-regulation of SOX2 on pepsinogen expression were also examined. RESULTS:Six GC and five CRC cell lines showed SOX2 expression on RT-PCR. Expression of pepsinogen A was detectable in eight GC and seven CRC cell lines, whereas the majority of the cell lines expressed pepsinogen C. Over-expression of SOX2 up-regulated expression of pepsinogen A but not that of pepsinogen C in 293T human embryonic kidney cells, and some GC and CRC cell lines. Moreover, pepsinogen A expression was significantly reduced by SOX2 RNA interference in two GC cell lines. CONCLUSION:These data suggest that SOX2 plays an important role in regulation of pepsinogen A, and ectopic expression of SOX2 may be associated with abnormal differentiation of colorectal cancer cells. |
| 巻・号 | 133(4) |
| ページ | 263-9 |
| 公開日 | 2007-4-1 |
| DOI | 10.1007/s00432-006-0165-x |
| PMID | 17136346 |
| MeSH | Animals Cell Line, Tumor Colorectal Neoplasms / enzymology* Colorectal Neoplasms / genetics* Colorectal Neoplasms / physiopathology DNA-Binding Proteins / metabolism* Gastric Mucosa / enzymology Gastric Mucosa / metabolism Gene Expression Regulation, Neoplastic HMGB Proteins / metabolism* Humans Pepsinogen A / genetics* Pepsinogen C / genetics Plasmids RNA, Messenger / metabolism RNA, Neoplasm / metabolism SOXB1 Transcription Factors Stomach / enzymology* Stomach / physiopathology Stomach Neoplasms / enzymology* Stomach Neoplasms / genetics* Stomach Neoplasms / physiopathology Transcription Factors / analysis Transcription Factors / genetics Transcription Factors / metabolism* Transfection |
| IF | 3.656 |
| 引用数 | 28 |
| WOS 分野 | ONCOLOGY |
| リソース情報 | |
| ヒト・動物細胞 | |