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| 1 | KL-6 mucin expression in carcinoma of the ampulla of Vater: Association with cancer progression显示文摘AIM: To assess histochemical expression of KL-6 and its clinicopathological significance in carcinoma of the ampulla of Vater.METHODS: Ampullary carcinoma tissues were collected from 38 patients who underwent pancreatoduodenectomy or local resection. Tissues were subjected to immunohistochemical analysis using KL-6 antibody.RESULTS: Positive staining of ampullary carcinoma cells was observed in 26 (68.4%) cases. Staining was not found in the surrounding non-cancer regions of the ampullary tissues. Remarkable KL-6 expression was observed in invasive carcinoma cells in pancreatic and duodenal tissues and in metastatic carcinoma cells in lymph nodes. Positive KL-6 expression was related to lymph node metastasis (P = 0.020), pancreatic invasion (P = 0.016), duodenal invasion (P = 0.034), and advanced stage of TNM clinical classification (P = 0.010). Survival analysis showed that positive expression of KL-6 was related to a poorer prognosis (P = 0.029).CONCLUSION: The aberrant expression of KL-6 mucin is significantly related to unfavorable behaviors of carcinoma of the ampulla of Vater. | Wei Tang Yoshinori Inagaki Norihiro Kokudo Qian Guo Yasuji Seyama Munehiro Nakata Hiroshi Imamura Keiji Sano Yasuhiko Sugawara Masatoshi Makuuchi | 2005 | World Journal of Gastroenterology2005,11,35: | 10 |
| 2 | Efficacy of an orally active small-molecule inhibitor of RANKL in bone metastasis显示文摘Bone is one of the preferred sites for the metastasis of malignant tumours,such as breast cancer,lung cancer and malignant melanoma.Tumour cells colonizing bone have the capacity to induce the expression of receptor activator of nuclear factor-κB ligand(RANKL),which promotes osteoclast differentiation and activation.Tumour-induced osteoclastic bone resorption leads to a vicious cycle between tumours and bone cells that fuels osteolytic tumour growth,causing bone pain and hypercalcaemia.Furthermore,RANKL contributes to bone metastasis by acting as a chemoattractant to bone for tumour cells that express its receptor,RANK.Thus inhibition of the RANKL–RANK pathway is a promising treatment for bone metastasis,and a human monoclonal anti-RANKL antibody,denosumab,has been used in the clinic.However,orally available drugs targeting RANKL must be developed to increase the therapeutic benefits to patients.Here we report the efficacy of the small-molecule RANKL inhibitor AS2676293 in treating bone metastasis using mouse models.Oral administration of AS2676293 markedly inhibited bone metastasis of human breast cancer cells MDA-MB-231-5a-D-Luc2 as well as tumour-induced osteolysis.AS2676293 suppressed RANKLmediated tumour migration in the transwell assay and inhibited bone metastasis of the murine cell line B16F10,which is known not to trigger osteoclast activation.Based on the results from this study,RANKL inhibition with a small-molecule compound constitutes a promising therapeutic strategy for treating bone metastasis by inhibiting both osteoclastic bone resorption and tumour migration to bone. | Yuta Nakai Kazuo Okamoto Asuka Terashima Shogo Ehata Jun Nishida Takeshi Imamura Takashi Ono Hiroshi Takayanagi | 2019 | Bone Research2019,7,1: | 8 |
| 3 | Phase Ⅱ study of protracted irinotecan infusion and a low-dose cisplatin for metastatic gastric cancer显示文摘AIM: To test protracted irinotecan infusion plus a low-dose cisplatin in this Phase Ⅱ trial to decrease its toxic-ity. METHODS: The eligibility criteria were: (1) histologi-cally proven measurable gastric cancer; (2) performance status of 0 or 1; (3) no prior chemotherapy or comple-tion of prior therapy at least 4 wk before enrollment; (4) adequate function of major organs; (5) no other active malignancy; and (6) written informed consent. The regi-men consisted of irinotecan (60 mg/m2) on d 1 and 15 by 24-h infusion and cisplatin (10 mg/m2) on d 1, 2, 3, 15, 16, and 17. Treatment was repeated every 4 wk. RESULTS: Thirty-one patients were registered between April 2000 and January 2001. The response rate for all 31 patients, 20 patients without prior chemotherapy, and 11 patients with prior chemotherapy was 52% (16/31), 60% (12/20), and 36% (4/11), respectively. The median survival time was 378 d. The median number of courses given to all patients was 2. Grade 4 neutropenia oc-curred in 11 (35%) patients, while grade 3 to 4 diarrhea or nausea occurred in 1 (3%) and 3 (10%) patients, respectively. Fatigue was minimal as grade 1 fatigue was found only in 3 (10%) patients. Other adverse events were mild and no treatment-related deaths occurred.CONCLUSION: This regimen showed a high level of ac-tivity and acceptable toxicity in patients with metastatic gastric cancer. | Hiroshi Imamura Masataka Ikeda Hiroshi Furukawa Toshimasa Tsujinaka Kazumasa Fujitani Kenji Kobayashi Hiroyuki Narahara Michio Kato Haruhiko Imamoto Arimichi Takabayashi Hideaki Tsukuma | 2006 | World Journal of Gastroenterology2006,12,40: | 7 |
| 4 | Neither Multiple Tumors Nor Portal Hypertension Are Surgical Contraindications for Hepatocellular Carcinoma显示文摘 | Takeaki Ishizawa Kiyoshi Hasegawa Taku Aoki Michiro Takahashi Yosuke Inoue Keiji Sano Hiroshi Imamura Yasuhiko Sugawara Norihiro Kokudo Masatoshi Makuuchi | 2008 | Gastroenterology2008,,7: | 7 |
| 5 | Prognostic Impact of Anatomic Resection for Hepatocellular Carcinoma显示文摘 | Kiyoshi Hasegawa Norihiro Kokudo Hiroshi Imamura Yutaka Matsuyama Taku Aoki Masami Minagawa Keiji Sano Yasuhiko Sugawara Tadatoshi Takayama Masatoshi Makuuchi | 2005 | Annals of Surgery2005,,2: | 6 |
| 6 | Complete response to preoperative chemoradiotherapy in highly advanced gastric adenocarcinoma显示文摘This report presents a case of highly advanced gastric cancer that achieved a histologically complete response (CR) to preoperative chemoradiotherapy with S-1 plus low-dose Cisplatin. A 60-year-old male patient underwent FDG positron emission tomography (PET) during a routine health examination. The patient was found to have swollen paraaortic lymph nodes. Shortly thereafter, he was diagnosed with gastric carcinoma with a type 2 tumor in the antrum with paraaortic lymph node metastases based on FDG-PET, endoscopic examination and abdominal computed tomography. After the completion of chemoradiation therapy (CRT), the tumor and the paraaortic lymph node metastases disappeared. The patient underwent surgery 5 wk after the completion of CRT, including a subtotal gastrectomy with Rouxen-Y reconstruction, D3 lymph node dissection and a left adrenalectomy. No cancer cells were detected in the resected specimen either in the primary lesion or lymph nodes, thus confirming a pathologically CR to CRT (CR grade 3). The patient has been stable and well without any evidence of recurrence for 48 mo after surgery. Such a preoperative CRT regimen might therefore be very effective for treatment of some advanced gastric cancers. | Hironori Shigeoka Haruhiko Imamoto Yasumasa Nishimura Taro Shimono Hiroshi Furukawa Hiroshi Imamura Takushi Yasuda Hitoshi Shiozaki | 2010 | World Journal of Gastrointestinal Oncology2010,2,6: | 6 |
| 7 | AFP, AFP-L3, DCP, and GP73 as markers for monitoring treatment response and recurrence and as surrogate markers of clinicopathological variables of HCC显示文摘 | Kentaroh Yamamoto Hiroshi Imamura Yutaka Matsuyama Yukio Kume Hitoshi Ikeda Gary L. Norman Zakera Shums Taku Aoki Kiyoshi Hasegawa Yoshifumi Beck Yasuhiko Sugawara Norihiro Kokudo | 2010 | Journal of Gastroenterology2010,,12: | 6 |
| 8 | Targeting tight junctions during epithelial to mesenchymal transition in human pancreatic cancer显示文摘Pancreatic cancer continues to be a leading cause of cancer-related death worldwide and there is an urgent need to develop novel diagnostic and therapeutic strategies to reduce the mortality of patients with this disease. In pancreatic cancer, some tight junction proteins, including claudins, are abnormally regulated and therefore are promising molecular targets for diagnosis, prognosis and therapy. Claudin-4 and-18 are overexpressed in human pancreatic cancer and its precursor lesions. Claudin-4 is a high affinity receptor of Clostridium perfringens enterotoxin(CPE). The cytotoxic effects of CPE and monoclonal antibodies against claudin-4 are useful as novel therapeutic tools for pancreatic cancer. Claudin-18 could be a putative marker and therapeutic target with prognostic implications for patients with pancreatic cancer. Claudin-1,-7, tricellulin and marvelD3 are involved in epithelial to mesenchymal transition(EMT) of pancreatic cancer cells and thus might be useful as biomarkers during disease. Protein kinase C is closely related to EMT of pancreatic cancer and regulates tight junctions of normal human pancreatic duct epithelial cells and the cancer cells. This review focuses on the regulation of tight junctions via protein kinase C during EMT in human pancreatic cancer for the purpose of developing new diagnostic and therapeutic modalities for pancreatic cancer. | Daisuke Kyuno Hiroshi Yamaguchi Tatsuya Ito Tsuyoshi Kono Yasutoshi Kimura Masafumi Imamura Takumi Konno Koichi Hirata Norimasa Sawada Takashi Kojima | 2014 | World Journal of Gastroenterology2014,20,31: | 3 |
| 9 | Effects of a 24-week course of interferon-αtherapy after curative treatment of hepatitis C virus-associated hepatocellular carcinoma显示文摘AIM:To assess whether a 24-wk course of interferon (IFN)could prevent hepatocellular carcinoma(HCC) recurrence and worsening of liver function in patients with hepatitis C virus(HCV)-infected patients after receiving curative treatment for primary HCC. METHODS:Outcomes in 42 patients with HCV infection treated with IFN-α,after curative treatment for primary HCC(IFN group),were compared with 42 matched curatively treated historical controls not given IFN(non- IFN group). RESULTS:Although the rate of initial recurrence did not differ significantly between IFN group and non-IFN group (0%,44%,61%,and 67% vs 4.8%,53%,81%,and 87% at 1,3,5,and 7 years,P=0.153,respectively), IFN group showed a lower rate than the non-IFN group for second recurrence(0%,10.4%,28%,and 35% vs 0%,30%,59%,and 66% at 1,3,5 and 7 years, P=0.022,respectively).Among the IFN group,patients with sustained virologic response(SVR)were less likely to have a second HCC recurrence than IFN patients without an SVR,or non-IFN patients.Multivariate analysis identified the lack of SVR as the only independent risk factor for a second recurrence,while SVR and Child-Pugh class A independently favored overall survival. CONCLUSION:Most intrahepatic recurrences of HCV- related HCC occurred during persistent viral infection. Eradication of HCV is essential for the prevention of HCC recurrence and improvement of survival. | Soo Cheol Jeong Hiroshi Aikata Yoshio Katamura Takahiro Azakami Tomokazu Kawaoka Hiromi Saneto Kiminori Uka Nami Mori Shintaro Takaki Hideaki Kodama Koji Waki Michio Imamura Hiroo Shirakawa Yoshiiku Kawakami Shoichi Takahashi Kazuaki Chayama | 2007 | World Journal of Gastroenterology2007,13,40: | 3 |
| 10 | Assessment of hepatic reserve for indication of hepatic resection: decision tree incorporating indocyanine green test显示文摘 | Hiroshi Imamura Keiji Sano Yasuhiko Sugawara Norihiko Kokudo Masatoshi Makuuchi | 2005 | Journal of Hepato-Biliary-Pancreatic Surgery2005,,1: | 2 |
| 11 | Addition of docetaxel to S-1 without platinum prolongs survival of patients with advanced gastric cancer: a randomized study (START)显示文摘 | Wasaburo Koizumi Yeul Hong Kim Masashi Fujii Hoon Kyo Kim Hiroshi Imamura Kyung Hee Lee Takuo Hara Hyun Cheol Chung Taroh Satoh Jae Yong Cho Hisashi Hosaka Akihito Tsuji Akinori Takagane Mikito Inokuchi Kazuaki Tanabe Tatsuya Okuno Mariko Ogura Kazuhiro Y | 2014 | Journal of Cancer Research and Clinical Oncology2014,,2: | 2 |
| 12 | Anatomical keys and pitfalls in living donor liver transplantation显示文摘 | Hiroshi Imamura Masatoshi Makuuchi Yoshihiro Sakamoto Yasuhiko Sugawara Keiji Sano Ataru Nakayama Seiji Kawasaki Tadatoshi Takayama | 2000 | Journal of Hepato - Biliary - Pancreatic Surgery2000,,4: | 2 |
| 13 | Low-dose intermittent interferon-alpha therapy for HCV-related liver cirrhosis after curative treatment of hepatocellular carcinoma显示文摘AIM: To assess the efficacy of low-dose intermittent interferon (IFN) therapy in patients with hepatitis C virus (HCV)-related compensated cirrhosis who had received curative treatment for primary hepatocellular carcinoma (HCC). METHODS: We performed a prospective case controlled study. Sixteen patients received 3 MIU of natural IFN- alpha intramuscularly 3 times weekly for at least 48 wk (IFN group). They were compared with 16 matched historical controls (non-IFN group). RESULTS: The cumulative rate of first recurrence of HCC was not significantly different between the IFN group and the non-IFN group (0% vs 6.7% and 68.6% vs 80% at 1- and 3-year, P = 0.157, respectively). The cumulative rate of second recurrence was not also significantly different between the IFN group and the non-IFN group (0% vs 6.7% and 35.9% vs 67% at 1- and 3-year, P = 0.056, respectively). Although the difference in the Child-Pugh classification score between the groups at initial treatment of HCC was not signifi cant, the score was signifi cantly worse at the time of data analysis in the non-IFN group than IFN group (7.19 ± 1.42 vs 5.81 ± 0.75, P = 0.0008). The cumulative rate of deviation from objects of any treatment for recurrentHCC was also higher in the non-IFN group than IFN group (6.7% and 27% vs 0 and 0% at 1- and 3-year, P = 0.048, respectively). CONCLUSION: Low-dose intermittent IFN-alpha therapy for patients with HCV-related compensated cirrhosis after curative HCC treatment was effective by making patients tolerant to medical or surgical treatment for recurrent HCC in the later period of observation. | Soocheol Jeong Hiroshi Aikata Yoshio Katamura Takahiro Azakami Tomokazu Kawaoka Hiromi Saneto Kiminori Uka Nami Mori Shintaro Takaki Hideaki Kodama Koji Waki Michio Imamura Hiroo Shirakawa Yoshiiku Kawakami Shoichi Takahashi Kazuaki Chayama | 2007 | World Journal of Gastroenterology2007,13,39: | 2 |
| 14 | Comparison of Perioperative and Long-term Outcomes of Total and Proximal Gastrectomy for Early Gastric Cancer: A Multi-institutional Retrospective Study显示文摘 | Toru Masuzawa Shuji Takiguchi Motohiro Hirao Hiroshi Imamura Yutaka Kimura Junya Fujita Isao Miyashiro Shigeyuki Tamura Masahiro Hiratsuka Kenji Kobayashi Yoshiyuki Fujiwara Masaki Mori Yuichiro Doki | 2014 | World Journal of Surgery2014,,5: | 2 |
| 15 | A comparison of postoperative quality of life and dysfunction after Billroth I and Roux-en-Y reconstruction following distal gastrectomy for gastric cancer: results from a multi-institutional RCT显示文摘 | Shuji Takiguchi Kazuyoshi Yamamoto Motohiro Hirao Hiroshi Imamura Junya Fujita Masahiko Yano Kenji Kobayashi Yutaka Kimura Yukinori Kurokawa Masaki Mori Yuichiro Doki | 2012 | Gastric Cancer2012,,2: | 2 |
| 16 | Results of Surgical Resection for Patients With Hilar Bile Duct Cancer: Application of Extended Hepatectomy After Biliary Drainage and Hemihepatic Portal Vein Embolization显示文摘 | Seiji Kawasaki Hiroshi Imamura Akira Kobayashi Terumasa Noike Shiro Miwa Shin-ichi Miyagawa | 2003 | Annals of Surgery2003,,1: | 2 |
| 17 | Value of prophylactic abdominal drainage in 1269 consecutive cases of elective liver resection显示文摘 | Yusuke Kyoden Hiroshi Imamura Keiji Sano Yoshifumi Beck Yasuhiko Sugawara Norihiro Kokudo Masatoshi Makuuchi | 2010 | Journal of Hepato - Biliary - Pancreatic Sciences2010,,2: | 2 |
| 18 | Risk factors contributing to early and late phase intrahepatic recurrence of hepatocellular carcinoma after hepatectomy显示文摘 | Hiroshi Imamura Yutaka Matsuyama Eiji Tanaka Takao Ohkubo Kiyoshi Hasegawa Shinichi Miyagawa Yasuhiko Sugawara Masami Minagawa Tadatoshi Takayama Seiji Kawasaki Masatoshi Makuuchi | 2002 | Journal of Hepatology2002,,2: | 1 |
| 19 | Impaired capsular polysaccharide is relevant to enhanced biofilm formation and lower virulence in Streptococcus pneumoniae显示文摘 | Liang Qin Yutaka Kida Yoshihiro Imamura Koichi Kuwano Hiroshi Watanabe | 2013 | Journal of Infection and Chemotherapy2013,,2: | 1 |
| 20 | Postoperative recurrence pattern and prognosis of patients with hepatocellular carcinoma, with particular reference to the hepatitis viral infection status显示文摘 | Shigetoshi Naito Hiroshi Imamura Akira Tukada Yutaka Matsuyama Jiro Yoshimoto Hiroyuki Sugo Yoichi Ishizaki Seiji Kawasaki | 2014 | Liver Int2014,,5: | 1 |