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| 1 | Clinical significance of serum procalcitonin in patients with ulcerative colitis显示文摘AIM:To investigate the association of procalcitonin(PCT)with ulcerative colitis(UC)activity.METHODS:Serum PCT levels,C-reactive protein(CRP)levels,the erythrocyte sedimentation rate,and the white blood cell count were analyzed in 18 patients with UC and 11 healthy volunteers.Serum PCT levels were analyzed by an electrochemiluminescence immunoassay.Severity assessments were based on Truelove and Witts’severity index.Correlation of serum PCT and CRP levels with UC activity was examined.Moreover,we assessed serum PCT and CRP levels in patients with a Mayo endoscopic subscore.RESULTS:Serum PCT levels in severe UC patients(n=7)(0.096±0.034 ng/mL)were significantly higher than in mild-to-moderate UC patients(n=11)(0.033±0.012 ng/mL)and healthy volunteers(n=11)(0.035±0.005 ng/mL)(P=0.0005 and P<0.0001,respectively).In addition,there was no difference in serum PCT levels between mild-to-moderate UC patients and healthy volunteers.Interestingly,patients with a Mayo endoscopic subscore of 3 points displayed significantly increased levels of serum PCT(0.075±0.043 ng/mL)compared with patients with a subscore of 2 points(0.03±0.011 ng/mL)(P=0.0302).Moreover,CRP levels in patients with severe UC or a Mayo endoscopic subscore of 3 points were not significantly higher than in patients with mild-to-moderate UC or a Mayo endoscopic subscore of 3 points.CONCLUSION:Serum PCT levels were significantly correlated with UC activity. | Shigeo Koido Toshifumi Ohkusa Kazuki Takakura Shunichi Odahara Shintaro Tsukinaga Toyokazu Yukawa Jimi Mitobe Mikio Kajihara Kan Uchiyama Hiroshi Arakawa Hisao Tajiri | 2013 | World Journal of Gastroenterology2013，19，45： | 15 |
| 2 | Immunotherapy for colorectal cancer显示文摘The incidence of colorectal cancer(CRC)is on the rise,and the prognosis for patients with recurrent or metastatic disease is extremely poor.Although chemotherapy and radiation therapy can improve survival rates,it is imperative to integrate alternative strategies such as immunotherapy to improve outcomes for patients with advanced CRC.In this review,we will discuss the effect of immunotherapy for inducing cytotoxic T lymphocytes and the major immunotherapeutic approaches for CRC that are currently in clinical trials,including peptide vaccines,dendritic cell-based cancer vaccines,whole tumor cell vaccines,viral vector-based cancer vaccines,adoptive cell transfer therapy,antibody-based cancer immunotherapy,and cytokine therapy.The possibility of combination therapies will also be discussed along with the challenges presented by tumor escape mechanisms. | Shigeo Koido Toshifumi Ohkusa Sadamu Homma Yoshihisa Namiki Kazuki Takakura Keisuke Saito Zensho Ito Hiroko Kobayashi Mikio Kajihara Kan Uchiyama Seiji Arihiro Hiroshi Arakawa Masato Okamoto Jianlin Gong Hisao Tajiri | 2013 | World Journal of Gastroenterology2013，19，46： | 11 |
| 3 | Factors associated with incomplete colonoscopy at a Japanese academic hospital显示文摘AIM:To evaluate significant risk factors for incomplete colonoscopy at a Japanese academic hospital.METHODS:A total of 11812 consecutive Japanese people were identified who underwent a colonoscopy at an academic hospital.A multiple logistic regression model was used to evaluate retrospectively the significant risk factors for incomplete colonoscopy.RESULTS:The cecal intubation rate was 95.0%.By univariate analysis,age,female sex,poor bowel cleansing,and a history of abdominal or pelvic surgery were significant risk factors for incomplete colonoscopy(P<0.001).Moreover,age-and sex-adjusted analysis showed that significant risk factors for incomplete colonoscopy were female sex(OR=1.38,95%CI:1.17-1.64,P=0.0002),age≥60 years old(OR=1.44,95%CI:1.22-1.71,P<0.0001),a history of prior abdominal or pelvic surgery(OR=1.55,95%CI:1.28-1.86,P<0.0001),poor bowel cleansing(OR=4.64,95%CI:3.69-5.84,P<0.0001),and inflammatory bowel disease(IBD)(OR=1.48,95%CI:1.13-1.95,P=0.0048).In Japanese men,by age-adjusted analysis,IBD(OR=1.69,95%CI:1.18-2.43,P=0.005)was an independent risk factor for incomplete colonoscopy.CONCLUSION:Several characteristics in the Japanese population were identified that could predict technical difficulty with colonoscopy. | Shigeo Koido Toshifumi Ohkusa Kosaburo Nakae Tetsuji Yokoyama Tomoyoshi Shibuya Naoto Sakamoto Kan Uchiyama Hiroshi Arakawa Taro Osada Akihito Nagahara Sumio Watanabe Hisao Tajiri | 2014 | World Journal of Gastroenterology2014，20，22： | 6 |
| 4 | Advances in inducing adaptive immunity using cell-based cancer vaccines: clinical applications in pancreatic cancer显示文摘The incidence of pancreatic ductal adenocarcinoma(PDA) is on the rise, and the prognosis is extremely poor because PDA is highly aggressive and notoriously difficult to treat. Although gemcitabine- or 5-fluorouracil-based chemotherapy is typically offered as a standard of care, most patients do not survive longer than 1 year. Therefore, the development of alternative therapeutic approaches for patients with PDA is imperative. As PDA cells express numerous tumor-associated antigens that are suitable vaccine targets, one promising treatment approach is cancer vaccines. During the last few decades, cell-based cancer vaccines have offered encouraging results in preclinical studies. Cell-based cancer vaccines are mainly generated by presenting whole tumor cells or dendritic cells to cells of the immune system. In particular, several clinical trials have explored cell-based cancer vaccines as a promising therapeutic approach for patients with PDA. Moreover, chemotherapy and cancer vaccines can synergize to result in increased efficacies in patients with PDA. In this review, we will discuss both the effect of cell-based cancer vaccines and advances in terms of future strategies of cancer vaccines for the treatment of PDA patients. | Mikio Kajihara Kazuki Takakura Tomoya Kanai Zensho Ito Yoshihiro Matsumoto Shigetaka Shimodaira Masato Okamoto Toshifumi Ohkusa Shigeo Koido | 2016 | World Journal of Gastroenterology2016，22，18： | 4 |
| 5 | Seasonal variations in the onset of ulcerative colitis in Japan显示文摘AIM:To investigate seasonal variations in the onset and relapse of ulcerative colitis(UC)in Japanese patients.METHODS:Between 1994 and 2006,198 Japanese patients diagnosed with UC according to conventional criteria in an academic hospital were enrolled for onset evaluation.Among 265 Japanese patients with UC who were observed for more than 12 mo,165 patients relapsed(239 times)and were enrolled for relapse evaluation.The patients’symptoms were recorded each month for 12 consecutive years.RESULTS:There was monthly seasonality in symptom onset during October and March for UC.The onset of symptoms in UC patients frequently occurred during the winter.Variation in UC onset was observed according to both month(P=0.015)and season(P=0.048).Relapse commonly occurred in October,and variations in relapse were not significant either in month(P=0.52)or season(P=0.12).Upper respiratory inflammation was the main factor responsible for relapse.CONCLUSION:Our results suggest that environmental factors associated with winter and spring seasonality may be responsible for triggering the clinical onset of UC in Japan. | Shigeo Koido Toshifumi Ohkusa Hiroaki Saito Tetsuji Yokoyama Tomoyoshi Shibuya Naoto Sakamoto Kan Uchiyama Hiroshi Arakawa Taro Osada Akihito Nagahara Sumio Watanabe Hisao Tajiri | 2013 | World Journal of Gastroenterology2013，19，47： | 3 |
| 6 | Fusions between dendritic cells and whole tumor cells as anticancer vaccines显示文摘 | Shigeo Koido Sadamu Homma Masato Okamoto Yoshihisa Namiki Kazuki Takakura Kan Uchiyama Mikio Kajihara Seiji Arihiro Hiroo Imazu Hiroshi Arakawa Shin Kan Hideo Komita Masaki Ito Toshifumi Ohkusa Jianlin Gong Hisao Tajiri | 2013 | OncoImmunology2013，，： | 3 |
| 7 | Four-week pegylated interferon a-2a monotherapy for chronic hepatitis C with genotype 2 and low viral load:A pilot,randomized study显示文摘AIM:To assess the efficacy and advantages of 4-wk pegylated interferon a-2a(peg-IFN-a2a) monotherapy for chronic hepatitis C patients with strong predictors of sustained virologic response(SVR).METHODS:Patients(n = 33) with genotype 2 and low viral load(< 100 KIU/mL),who became HCV RNA negative after 1 wk of IFN treatment,were randomly allocated to receive a 4-or 12-wk treatment course at a ratio of 2:1,respectively,with a subsequent 24-wk follow-up period.Peg-IFN-a2a was administered subcutaneously at a dose of 180 μg or 90 μg once weekly.SVR was defined as absence of serum HCV RNA at the end of the follow-up period.RESULTS:All patients completed the treatment schedule,and more than half were symptom-free during the treatment.In the 4-wk treatment group,20 of 22(91%) patients achieved SVR.Two patients relapsed,but achieved SVR following re-treatment with peg-IFN-a2a alone.In the 12-wk treatment group,11 of 11(100%) patients attained SVR.CONCLUSION:Our results show that a 4-wk course of peg-IFN-a2a monotherapy can achieve a high SVR rate in 'IFN-sensitive' patients,without negatively affecting outcome. | Akihito Tsubota Ken-ichi Satoh Mashu Aizawa Seishi Takamatsu Yoshihisa Namiki Toshifumi Ohkusa Kiyotaka Fujise Hisao Tajiri | 2008 | World Journal of Gastroenterology2008，14，47： | 3 |
| 8 | Dendritic cell-based cancer immunotherapy for colorectal cancer显示文摘Colorectal cancer(CRC) is one of the most common cancers and a leading cause of cancer-related mortality worldwide. Although systemic therapy is the standard care for patients with recurrent or metastatic CRC, the prognosis is extremely poor. The optimal sequence of therapy remains unknown. Therefore, alternative strategies, such as immunotherapy, are needed for patients with advanced CRC. This review summarizes evidence from dendritic cell-based cancer immunotherapy strategies that are currently in clinical trials. In addition, we discuss the possibility of antitumor immune responses through immunoinhibitory PD-1/PD-L1 pathway blockade in CRC patients. | Mikio Kajihara Kazuki Takakura Tomoya Kanai Zensho Ito Keisuke Saito Shinichiro Takami Shigetaka Shimodaira Masato Okamoto Toshifumi Ohkusa Shigeo Koido | 2016 | World Journal of Gastroenterology2016，22，17： | 3 |
| 9 | Current Immunotherapeutic Approaches in Pancreatic Cancer显示文摘 | Shigeo Koido Sadamu Homma Akitaka Takahara Yoshihisa Namiki Shintaro Tsukinaga Jimi Mitobe Shunichi Odahara Toyokazu Yukawa Hiroshi Matsudaira Keisuke Nagatsuma Kan Uchiyama Kenichi Satoh Masaki Ito Hideo Komita Hiroshi Arakawa Toshifumi Ohkusa Jianlin Go | 2011 | Clinical and Developmental Immunology2011，，： | 3 |
| 10 | Gastrointestinal stromal tumor of the stomach with a giant abscess penetrating the gastric lumen显示文摘Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the gastrointestinal tract. In large GISTs, cystic degeneration, necrosis and focal hemorrhage that occur inside the tumor can result in gastrointestinal bleeding. We describe a case of a 74-year old male with GIST of the stomach accompanied with a giant abscess that penetrated the gastric lumen. The patient experienced undiagnosed fever for two months prior to hospitalization. Gastrointestinal endoscopy, X-ray series and computed tomography of the patient’s abdomen revealed a gastric submucosal tumor in the fornix, with a fistula to the gastric lumen that was inundated with a great deal of pus. The mass was diagnosed as a GIST from biopsy specimens. The patient was treated by endoscopic drainage of the abscess and intravenous administration of antibiotics. Eventually, a partial gastrectomy was performed. He was also administered Imanitib mesylate as adjuvant therapy. He was followed up for 2 years and no metastasis or recurrence was recognized at the follow- up examinations. This is the first report of a patient with clearly diagnosed GIST with endoscopic evidence of an abscess penetrating into the gastric lumen. | Taro Osada Akihito Nagahara Tomohiro Kodani Akihiro Namihisa Masato Kawabe Takashi Yoshizawa Toshifumi Ohkusa Sumio Watanabe | 2007 | World Journal of Gastroenterology2007，13，16： | 2 |
| 11 | Production of corticotropin-releasing factor and urocortin from human monocyte-derived dendritic cells is stimulated by commensal bacteria in intestine显示文摘AIM:To examine whether commensal bacteria are a contributing cause of stress-related mucosal inflammation.METHODS:Human peripheral blood monocyte-deriveddendritic cells(MoDCs)were stimulated by commensal bacterial strains,including Escherichia coli,Clostridium clostridioforme,Bacteroides vulgatus(B.vulgatus),Fusobacterium varium(F.varium),and Lactobacillus delbrueckii subsp.bulgaricus.After incubation,corticotropin-releasing factor(CRF)and urocortin 1(UCN1)mRNA in the cells was examined by real-time reverse transcription polymerase chain reaction.Supernatants from the cells were tested for CRF and UCN1 using an enzyme-linked immunosorbent assay.RESULTS:Both CRF and UCN1 were significantly augmented by B.vulgatus and F.varium at both the mRNA and protein levels.In particular,B.vulgatus stimulated human MoDCs,resulting in extremely high levels of CRF and UCN1.CONCLUSION:Stimulation of MoDCs by B.vulgatus and F.varium may be associated with CRF/UCN1-related intestinal disorders,such as irritable bowel syndrome and inflammatory bowel disease. | Shigeo Koido Toshifumi Ohkusa Shin Kan Kazuki Takakura Keisuke Saito Hideo Komita Zensho Ito Hiroko Kobayashi Shinichiro Takami Kan Uchiyama Hiroshi Arakawa Masaki Ito Masato Okamoto Mikio Kajihara Sadamu Homma Hisao Tajiri | 2014 | World Journal of Gastroenterology2014，20，39： | 2 |
| 12 | Immunotherapy synergizes with chemotherapy targeting pancreatic cancer显示文摘 | Shigeo Koido Sadamu Homma Akitaka Takahara Yoshihisa Namiki Hideo Komita Kan Uchiyama Masaki Ito Jianlin Gong Toshifumi Ohkusa Hisao Tajiri | 2012 | Immunotherapy2012，，1： | 2 |
| 13 | Chemoimmunotherapy targeting Wilms’ tumor 1 (WT1)-specific cytotoxic T lymphocyte and helper T cell responses for patients with pancreatic cancer显示文摘 | Shigeo Koido Sadamu Homma Masato Okamoto Kazuki Takakura Jianlin Gong Haruo Sugiyama Toshifumi Ohkusa Hisao Tajiri | 2014 | OncoImmunology2014，，10： | 2 |
| 14 | Regulation of Tumor Immunity by Tumor/Dendritic Cell Fusions显示文摘 | Shigeo Koido Sadamu Homma Eiichi Hara Yoshihisa Namiki Akitaka Takahara Hideo Komita Eijiro Nagasaki Masaki Ito Toshifumi Ohkusa Jianlin Gong Hisao Tajiri E. Shevach | 2010 | Clinical and Developmental Immunology2010，，： | 2 |
| 15 | Alterations in cardiac tissue of paitient with chronic atrial fibrillation 显示文摘 | Ohkusa T Ueyama T Yamada J | 2000 | Circulation2000，101，： | 1 |
| 16 | Alterations in cardiac sarcoplasmic reticulum Caz+ regulatory proteins in the atrial tissue of patients with chronic atrial fibrillation显示文摘 | Ohkusa T Ueyama T Yamada J | 1999 | J Am Coil Cardiol1999，34，1： | 1 |
| 17 | Clinical evaluation of cardiac function by ambulatory ventricular scintigraphie monito- ring (VEST) : Validation and study of the effects of nitroglycerin and nifedipine in patients with and without coronary artery disease 显示文摘 | Mohiuddin IH Kambara H Ohkusa T | 1992 | Am Heart J1992，123，2： | 1 |
| 18 | Newly developed antibiotie combination therapy for ulcerative colitis: a double-blind placebo- controlled muhieenter trial 显示文摘 | Ohkusa T Kato K Terao S | 2010 | Am J Gastroenterol2010，105，8： | 1 |
| 19 | Colonic mucosal lesions associated with long-term administration of non-steroidal anti-inflammatory drugs 显示文摘 | Ohkusa T Terai T Abe S | 2006 | Aliment Pharmacol Ther2006，24，4： | 1 |
| 20 | Cancer Vaccine by Fusions of Dendritic and Cancer Cells显示文摘 | Shigeo Koido Eiichi Hara Sadamu Homma Yoshihisa Namiki Toshifumi Ohkusa Jianlin Gong Hisao Tajiri Mario Clerici | 2010 | Clinical and Developmental Immunology2010，，： | 1 |
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