論文 - 詳細
| RRC ID | 41857 |
|---|---|
| 著者 | Nakanishi H, Mochizuki Y, Kodera Y, Ito S, Yamamura Y, Ito K, Akiyama S, Nakao A, Tatematsu M. |
| タイトル | Chemosensitivity of peritoneal micrometastases as evaluated using a green fluorescence protein (GFP)-tagged human gastric cancer cell line. |
| ジャーナル | Cancer Sci |
| Abstract |
The chemosensitivity of micrometastases in the peritoneal cavity to a 5-fluorouracil derivative (TS-1) was examined with a micrometastasis model featuring a human gastric cancer cell line tagged with the green fluorescence protein (GFP) gene in nude mice. Peritoneal metastases on the omentum and mesentery could be specifically visualized even when minute or dormant and also externally monitored noninvasively under illumination with blue light from 1 day after intraperitoneal (i.p.) injection of tumor cells. Metastatic deposits formed after i.p. injection of 2x10(6) tumor cells were significantly reduced by TS-1 in a dose-dependent manner (15-20 mg/kg), when it was orally administered from day 1 post-injection for 4 weeks (early administration). No such inhibition was evident after injection of 1x10(7) tumor cells. When 2x10(6) tumor cells given injection, the ascites-free period in TS-1-treated mice was significantly longer than in their untreated counterparts. Survival of TS-1-treated mice (5/15) was also significantly higher than the zero rate in controls (0/15), with 4 out of 5 surviving mice being free from peritoneal metastasis and the exception having only a few dormant metastases. In contrast, when TS-1 was administered starting from day 7 post-injection for 4 weeks (late administration), the survival and ascites-free period of the TS-1-treated mice were not significantly influenced. The results indicate that the chemosensitivity of peritoneal metastases to TS-1 is dependent on the number of i.p. tumor cells and the timing of drug administration. Peritoneal micrometastases at an early stage are most susceptible and can be effectively eliminated by oral administration of an anti-cancer agent, which leads to the longer survival and better quality of life (QOL) of the mice. |
| 巻・号 | 94(1) |
| ページ | 112-8 |
| 公開日 | 2003-1-1 |
| DOI | 10.1111/j.1349-7006.2003.tb01361.x |
| PMID | 12708484 |
| MeSH | Administration, Oral Animals Antimetabolites, Antineoplastic / administration & dosage Antimetabolites, Antineoplastic / therapeutic use* Ascites Carcinoma / drug therapy Carcinoma / secondary* Cell Count Dose-Response Relationship, Drug Drug Combinations Genes, Reporter Green Fluorescent Proteins Humans Injections, Intraperitoneal Luminescent Proteins / analysis Luminescent Proteins / genetics Male Mesentery / pathology Mice Mice, Nude Omentum / pathology Oxonic Acid / administration & dosage Oxonic Acid / therapeutic use* Peritoneal Neoplasms / drug therapy Peritoneal Neoplasms / secondary* Prodrugs / administration & dosage Prodrugs / therapeutic use Pyridines / administration & dosage Pyridines / therapeutic use* Stomach Neoplasms / pathology* Tegafur / administration & dosage Tegafur / therapeutic use* Tumor Cells, Cultured / pathology Xenograft Model Antitumor Assays |
| IF | 4.966 |
| 引用数 | 33 |
| WOS 分野 | ONCOLOGY |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | Patent(IFI CLAIMS) |
| 各媒体での言及数の合計 | 12 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ヒト・動物細胞 | GCIY(RCB0555) |