| 著者 | 稲田 涼| 永坂 岳司| 母里 淑子| 楳田 祐三| 久保田 暢人| 森川 達也| 近藤 喜太| 宇野 太| 貞森 裕| 八木 孝仁| 藤原 俊義| |
|---|---|
| 発行日 | 2013-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 125巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 稲田 涼| 永坂 岳司| 竹原 清人| 杉原 正大| 母里 淑子| 楳田 祐三| 久保田 暢人| 森川 達也| 近藤 喜太| 宇野 太| 貞森 裕| 八木 孝仁| 藤原 俊義| |
|---|---|
| 発行日 | 2013-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 125巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 宇野 太| 藤原 康宏| 藤原 俊義| |
|---|---|
| 発行日 | 2013-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 125巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 児島 亨| 渡邉 雄一| 橋本 悠里| 黒田 新士| 山崎 泰源| 矢野 修也| 田澤 大| 宇野 太| 香川 俊輔| 田中 紀章| 浦田 泰生| 藤原 俊義| |
|---|---|
| 発行日 | 2013-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 125巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 野口 洋文| 藤原 俊義| |
|---|---|
| 発行日 | 2012-12-03 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 124巻 |
| 号 | 3号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Huang, P| Kaku, H| Chen, J| Kashiwakura, Y| Saika, T| Nasu, Y| Urata, Y| Fujiwara, T| Watanabe, M| Kumon, H| |
|---|---|
| 発行日 | 2010-07 |
| 出版物タイトル | Cancer Gene Therapy |
| 巻 | 17巻 |
| 号 | 7号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Kojima, Toru| Hashimoto, Yuuri| Watanabe, Yuichi| Kagawa, Shunsuke| Uno, Futoshi| Kuroda, Shinji| Tazawa, Hiroshi| Kyo, Satoru| Mizuguchi, Hiroyuki| Urata, Yasuo| Tanaka, Noriaki| Fujiwara, Toshiyoshi| |
|---|---|
| 発行日 | 2009-10-01 |
| 出版物タイトル | The Journal of Clinical Investigation |
| 巻 | 119巻 |
| 号 | 10号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 田辺 俊介| 白川 靖博| 前田 直見| 大原 利章| 野間 和広| 櫻間 教文| 柳井 広之| 山辻 知樹| 猶本 良夫| 藤原 俊義| |
|---|---|
| 発行日 | 2012-08-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 124巻 |
| 号 | 2号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 佐々木 剛| 田澤 大| 長谷井 嬢| 国定 俊之| 吉田 晶| 橋本 悠里| 矢野 修也| 吉田 亮介| 宇野 太| 香川 俊輔| 森本 裕樹| 浦田 泰生| 藤原 俊義| 尾﨑 敏文| |
|---|---|
| 発行日 | 2012-08-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 124巻 |
| 号 | 2号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/48268 |
|---|---|
| フルテキストURL | 66_2_177.pdf.pdf |
| 著者 | Utsumi, Masashi| Matsuda, Hiroaki| Sadamori, Hiroshi| Shinoura, Susumu| Umeda, Yuzo| Yoshida, Ryuichi| Satoh, Daisuke| Hashimoto, Masaaki| Yagi, Takahito| Fujiwara, Toshiyoshi| |
| 抄録 | We report 4 cases of surgical resection of metachronous lymph node (LN) metastases from hepatocellular carcinoma (HCC) following hepatectomy. Clinicopathological features and results of LN dissection were investigated in the 4 patients. One patient was found to have a single metastasis in the mediastinal LNs, another had multiple metastases in the mediastinal and abdominal LNs, and the other 2 had single metastases in the abdominal LN. The locations of the abdominal LN metastases were behind the pancreas head in 2 patients and around the abdominal aorta in 1 patient. They all underwent surgical resection of metastatic LNs and had no postoperative complications. The 3 patients whose LN metastases were solitary have been alive for more than 2 years after LN resection, and one of them is free from recurrence. The patient with multiple LN metastases died 13 months after LN resection due to carcinomatosis. With the expectation of long-term survival, a single metachronous LN metastasis from HCC after hepatectomy should be resected in patients without uncontrollable intrahepatic or extrahepatic tumors. |
| キーワード | hepatocellular carcinoma lymph node metastasis hepatectomy |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-04 |
| 巻 | 66巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 177 |
| 終了ページ | 182 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22525476 |
| Web of Science KeyUT | 000303175300011 |
| JaLCDOI | 10.18926/AMO/48258 |
|---|---|
| フルテキストURL | 66_2_83.pdf.pdf |
| 著者 | Kuroda, Shinji| Urata, Yasuo| Fujiwara, Toshiyoshi| |
| 抄録 | Radiotherapy plays a central part in cancer treatment, and use of radiosensitizing agents can greatly enhance this modality. Although studies have shown that several chemotherapeutic agents have the potential to increase the radiosensitivity of tumor cells, investigators have also studied a number of molecularly targeted agents as radiosensitizers in clinical trials based on reasonably promising preclinical data. Recent intense research into the DNA damage-signaling pathway revealed that ataxia-telangiectasia mutated (ATM) and the Mre11-Rad50-NBS1 (MRN) complex play central roles in DNA repair and cell cycle checkpoints and that these molecules are promising targets for radiosensitization. Researchers recently developed three ATM inhibitors (KU-55933, CGK733, and CP466722) and an MRN complex inhibitor (mirin) and showed that they have great potential as radiosensitizers of tumors in preclinical studies. Additionally, we showed that a telomerase-dependent oncolytic adenovirus that we developed (OBP-301 [telomelysin]) produces profound radiosensitizing effects by inhibiting the MRN complex via the adenoviral E1B55kDa protein. A recent Phase I trial in the United States determined that telomelysin was safe and well tolerated in humans, and this agent is about to be tested in combination with radiotherapy in a clinical trial based on intriguing preclinical data demonstrating that telomelysin and ionizing radiation can potentiate each other. In this review, we highlight the great potential of ATM and MRN complex inhibitors, including telomelysin, as radiosensitizing agents. |
| キーワード | ATM (ataxia-telangiectasia mutated) MRN (Mre11-Rad50-NBS1) complex radiosensitization adenovirus E1B55kDa |
| Amo Type | Review |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2012-04 |
| 巻 | 66巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 83 |
| 終了ページ | 92 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2012 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22525466 |
| Web of Science KeyUT | 000303175300001 |
| 著者 | 西崎 正彦| 藤原 康宏| 丁田 泰宏| 金澤 卓| 二宮 基樹| 藤原 俊義| |
|---|---|
| 発行日 | 2012-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 124巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 篠浦 先| 八木 孝仁| 貞森 裕| 松田 浩明| 楳田 祐三| 吉田 龍一| 佐藤 太佑| 内海 方嗣| 横道 直佑| 杭瀬 崇| 藤原 俊義| |
|---|---|
| 発行日 | 2012-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 124巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/47265 |
|---|---|
| フルテキストURL | 65_6_395.pdf |
| 著者 | Harada, Sosuke| Sato, Shuhei| Suzuki, Etsuji| Okumura, Yoshihiro| Hiraki, Takao| Gobara, Hideo| Mimura, Hidefumi| Kanazawa, Susumu| Kaji, Mitsumasa| Fujiwara, Toshiyoshi| |
| 抄録 | The aim of the present study was to assess the diagnostic usefulness of Fluorine-18 fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) in the prediction of local recurrence of malignant lung tumors by analyzing the pre-radiofrequency ablation (RFA) maximal standardized uptake value (SUVmax). We performed a historical cohort study of consecutive malignant lung tumors treated by RFA from January 2007 to May 2008 at Okayama University Hospital. We selected only lung tumors examined by PET/CT within 90 days before RFA and divided them (10 primary and 29 metastatic) into 3 groups according to their tertiles of SUVmax. We calculated recurrence odds ratios in the medium group and the high group compared to the low group using multivariate logistic analysis. After we examined the relationship between SUVmax and recurrence in a crude model, we adjusted for some factors. Tumors with higher SUVmax showed higher recurrence odds ratios (medium group;1.84, high group;4.14, respectively). The tumor size also increased the recurrence odds ratio (2.67);we thought this was mainly due to selection bias because we excluded tumors less than 10mm in diameter. This study demonstrated the pre-RFA SUVmax in PET/CT may be a prognostic factor for local recurrence of malignant lung tumors. |
| キーワード | fluorodeoxyglucose (FDG) positron emission tomography (PET) standardized uptake value (SUV) radiofrequency ablation (RFA) lung |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2011-12 |
| 巻 | 65巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 395 |
| 終了ページ | 402 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2011 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 22189480 |
| Web of Science KeyUT | 000298516900006 |
| 著者 | 佐藤 太祐| 八木 孝仁| 貞森 裕| 楳田 祐三| 藤原 俊義| |
|---|---|
| 発行日 | 2011-12-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 123巻 |
| 号 | 3号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 佐藤 太祐| 八木 孝仁| 貞森 裕| 松田 浩明| 篠浦 先| 楳田 祐三| 吉田 龍一| 内海 方嗣| 藤原 俊義| |
|---|---|
| 発行日 | 2011-12-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 123巻 |
| 号 | 3号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 黒田 新士| 藤原 俊哉| 白川 靖博| 山崎 泰源| 矢野 修也| 宇野 太| 田澤 大| 橋本 悠里| 渡辺 雄一| 野間 和広| 浦田 泰生| 香川 俊輔| 藤原 俊義| |
|---|---|
| 発行日 | 2011-08-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 123巻 |
| 号 | 2号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/46628 |
|---|---|
| フルテキストURL | 65_3_169.pdf |
| 著者 | Takeda, Masanori| Nagasaka, Takeshi| Dong-Sheng, Sun| Nishie, Hiroyuki| Oka, Tetsuhiro| Yamada, Eiji| Mori, Yoshiko| Shigeyasu, Kunitoshi| Morikawa, Tatsuya| Mizobuchi, Satoshi| Fujiwara, Toshiyoshi| |
| 抄録 | Secreted frizzled-related protein 2, (SFRP2) is a Wnt inhibitor whose promoter CpGs were recently found to be methylated at high frequency in colorectal cancers (CRCs). We hypothesized that the pattern of SFRP2 methylation may differ throughout the promoter during progressive tumorigenesis. Using combined bisulfite restriction analysis (COBRA), two methylation-sensitive regions (Regions A and B) of the SFRP2 promoter were investigated in 569 specimens of colorectal tissue:222 CRCs, 103 adenomatous polyps (APs), 208 normal colonic mucosa from CRC patients (N-Cs), and 36 normal colonic mucosa from subjects with no evidence of colorectal neoplasia at colonoscopy (N-Ns). Extensive (including both Regions A and B) and partial (either Region A or B) SFRP2 methylation levels were found in 61.7% and 24.8% of CRCs, 8.7% and 37.9% of APs, 3.9% and 39.9% of N-Cs, and 0% and 30.6% of N-Ns, respectively. Extensive methylation of the SFRP2 promoter was present primarily in CRCs, while partial methylation was common in APs. Whereas APs with the KRAS mutant showed no correlation to any pattern of SFRP2 methylation, extensive methylation of the SFRP2 promoter was significantly associated with KRAS mutant CRCs (p＜.0001), suggesting that genetic alteration in the RAS-RAF pathway might precede the spread of CpG methylation through the SFRP2 promoter, which is observed in over 60% of advanced colorectal tumors. |
| キーワード | BRAF/KRAS mutations promoter methylation colorectal cancer |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2011-06 |
| 巻 | 65巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 169 |
| 終了ページ | 177 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2011 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 21709714 |
| Web of Science KeyUT | 000292017500003 |
| JaLCDOI | 10.18926/AMO/46626 |
|---|---|
| フルテキストURL | 65_3_151.pdf |
| 著者 | Fujiwara, Toshiyoshi| |
| 抄録 | Replication-selective tumor-specific viruses constitute a novel approach for treatment of neoplastic disease. These vectors are designed to induce virus-mediated lysis of tumor cells after selective viral propagation within the tumor. Human telomerase is highly active in more than 85ｵ of primary cancers, regardless of their tissue origins, and its activity correlates closely with human telomerase reverse transcriptase (hTERT) expression. We constructed an attenuated adenovirus 5 vector (Telomelysin, OBP-301), in which the hTERT promoter element drives expression of E1 genes. Since only tumor cells that express telomerase activity would activate this promoter, the hTERT proximal promoter would allow for preferential expression of viral genes in tumor cells, leading to selective viral replication and oncolytic cell death. Lymphatic invasion is a major route for cancer cell dissemination, and adequate treatment of locoregional lymph nodes is required for curative treatment in patients with gastrointestinal tumors. We demonstrated that intratumoral injection of Telomelysin mediates effective in vivo purging of metastatic tumor cells from regional lymph nodes. Moreover, using noninvasive whole-body imaging, we found that intratumoral injection of Telomelysin followed by regional irradiation induces a substantial antitumor effect, resulting from tumor cell-specific radiosensitization, in an orthotopic human esophageal cancer xenograft model. These results illustrate the potential of oncolytic virotherapy as a promising strategy in the management of human gastrointestinal cancer. |
| キーワード | telomerase adenovirus metastasis lymph node colorectal cancer |
| Amo Type | Review |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2011-06 |
| 巻 | 65巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 151 |
| 終了ページ | 162 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2011 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 21709712 |
| Web of Science KeyUT | 000292017500001 |
| 著者 | 野間 和広| 田中屋 宏爾| 竹内 仁司| 小長 英二| 藤原 俊義| |
|---|---|
| 発行日 | 2011-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 123巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |