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Osuka Y, Takeshima N, Kojima N, Kohama T, Fujita E, Kusunoki M, Kato Y, Brechue WF, Sasai H. Discrimination of Frailty Phenotype by Kinect TM-Based Stepping Parameters. JAR Life 2023; 12:100-104. [PMID: 38186668 PMCID: PMC10767484 DOI: 10.14283/jarlife.2023.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 12/04/2023] [Indexed: 01/09/2024]
Abstract
Background Frailty increases the risk of falling, hospitalization, and premature death, necessitating practical early-detection tools. Objectives To examine the discriminative ability of KinectTM-based stepping parameters for identifying frailty phenotype. Design Population-based cross-sectional study. Setting Eighteen neighborhoods near Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi, Tokyo, Japan. Participants In total, 563 community-dwelling older adults aged ≥75 years without mobility limitations, neurological disease, or dementia were included. Measurements Step number (SN) and knee total movement distance (KMD) during a 20-s stepping test were evaluated using the KinectTM infrared depth sensor. Results The number (%) of participants with frailty were 51 (9.1). The area under the receiver operating characteristic curves (95% confidence interval) of a parameter consisting of SN and KMD for frailty was 0.72 (0.64, 0.79). Conclusions Stepping parameters evaluated using KinectTM provided acceptable ability in identifying frailty phenotype, making it a practical screening tool in primary care and home settings.
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Affiliation(s)
- Y Osuka
- Department of Frailty Research, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - N Takeshima
- Department of Health and Sports Sciences, Asahi University, Gifu, Japan
| | - N Kojima
- Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Tokyo, Japan
| | - T Kohama
- Faculty of Biology-Oriented Science and Technology, Kindai University, Wakayama, Japan
| | - E Fujita
- Department of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kagoshima, Japan
| | - M Kusunoki
- Faculty of Biology-Oriented Science and Technology, Kindai University, Wakayama, Japan
| | - Y Kato
- Department of Physical Therapy, Nagoya Women's University, Aichi, Japan
| | - W F Brechue
- Department of Physiology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Missouri, USA
| | - H Sasai
- Department of Frailty Research, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
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Kusunoki K, Toiyama Y, Okugawa Y, Yamamoto A, Omura Y, Kusunoki Y, Yin C, Kondo S, Okita Y, Ohi M, Sasaki H, Bando T, Uchino M, Ikeuchi H, Kusunoki M. The advanced lung cancer inflammation index predicts outcomes in patients with Crohn's disease after surgical resection. Colorectal Dis 2021; 23:84-93. [PMID: 32644245 DOI: 10.1111/codi.15248] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/25/2020] [Indexed: 12/13/2022]
Abstract
AIM Precise biomarkers for predicting prognosis could help to identify high-risk Crohn's disease (CD) patients to facilitate better follow-up during the postoperative course. In this study, the primary aim is the identification of the most reliable nutrition marker that predicts surgical relapse in CD patients. METHOD We first evaluated the predictive value of various nutrition markers for postoperative surgical relapse in CD patients and identified the advanced lung cancer inflammation index (ALI) as a promising biomarker. Then, we assessed the clinical significance of preoperative ALI in CD patients using two cohorts. RESULTS Preoperative ALI showed the highest correlation with reoperation rate compared with other nutritional parameters in CD patients receiving surgical resection (sensitivity 53%, specificity 86%, area under the curve 0.71). Lower levels of preoperative ALI were significantly correlated with the presence of perianal disease. A lower level of preoperative ALI was an independent prognostic factor for reoperation rate after an intestinal resection (hazard ratio 3.37, 95% CI 1.38-10.12, P = 0.006), and the prognostic impact of preoperative ALI was successfully validated in an independent cohort using the same cut-off value. CONCLUSION Preoperative ALI might be useful for postoperative management of CD patients.
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Affiliation(s)
- K Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Inflammatory Bowel Disease, Division of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Y Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Okugawa
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan.,Department of Genomic Medicine, Mie University Hospital, Tsu, Japan
| | - A Yamamoto
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Omura
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - C Yin
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - S Kondo
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - Y Okita
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - M Ohi
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Sasaki
- Department of Inflammatory Bowel Disease, Division of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - T Bando
- Department of Inflammatory Bowel Disease, Division of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - M Uchino
- Department of Inflammatory Bowel Disease, Division of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - H Ikeuchi
- Department of Inflammatory Bowel Disease, Division of Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - M Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan
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Norimatsu W, Matsuda K, Terasawa TO, Takata N, Masumori A, Ito K, Oda K, Ito T, Endo A, Funahashi R, Kusunoki M. Controlled growth of boron-doped epitaxial graphene by thermal decomposition of a B 4C thin film. Nanotechnology 2020; 31:145711. [PMID: 31846947 DOI: 10.1088/1361-6528/ab62cf] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We show that boron-doped epitaxial graphene can be successfully grown by thermal decomposition of a boron carbide thin film, which can also be epitaxially grown on a silicon carbide substrate. The interfaces of B4C on SiC and graphene on B4C had a fixed orientation relation, having a local stable structure with no dangling bonds. The first carbon layer on B4C acts as a buffer layer, and the overlaying carbon layers are graphene. Graphene on B4C was highly boron doped, and the hole concentration could be controlled over a wide range of 2 × 1013 to 2 × 1015 cm-2. Highly boron-doped graphene exhibited a spin-glass behavior, which suggests the presence of local antiferromagnetic ordering in the spin-frustration system. Thermal decomposition of carbides holds the promise of being a technique to obtain a new class of wafer-scale functional epitaxial graphene for various applications.
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Affiliation(s)
- Wataru Norimatsu
- Department of Materials Science and Engineering, Nagoya University, Nagoya 464-8603, Japan
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Takeshima N, Kohama T, Kusunoki M, Fujita E, Okada S, Kato Y, Kofuku K, Islam MM, Brechue WF. Development of Simple, Objective Chair-Standing Assessment of Physical Function in Older Individuals Using a KinectTM Sensor. J Frailty Aging 2019; 8:186-191. [PMID: 31637404 DOI: 10.14283/jfa.2019.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND With increasing interest in addressing quality of life of older individuals, tests such as the Functional Independence Measure (FIM) are widely used measures of infirmity and burden of care. However, these scales are largely qualitative and especially problematic when assessing movement-based tasks. While effective, reliable analysis of human movement is technically complicated and expensive; an infrared depth sensor is potentially a low-cost, portable devise which may provide a quantitative aspect to clinical testing. OBJECTIVE to assess the utility of the KinectTM sensor in providing an objective evaluation of human movement using an oft measured ADL (chair stand). DESIGN Cross-sectional study. SETTING Community, geriatric day-care center in Japan. PARTICIPANTS Men (n=136) and women (n=266) between 50 and 93 years of age, consisting of healthy (HE; n=312) and physically frail (FR; n= 90) individuals. MEASUREMENTS Subjects completed two trials of the chair stand, conducted without assistance. Trials were timed and recorded with KinectTM v2. Coronal plane angle (CPA) was determined by a line transecting the shoulder-center and waist relative to the vertical axis and was used to assess quality of the chair stand movement pattern. RESULTS Age, height, and body mass were not different between groups. CPA was significantly greater in FR (29.3 ± 8.3°) than HE (19.5 ± 6.5°). CPA and age were significantly related (r=0.148, p<0.01). An optimal threshold for CPA identifying frailty was determined by a receiver-operator characteristic curve with a CPA of 23.1° providing the greatest combination of sensitivity (79%) and specificity (73%). CONCLUSION During the chair stand, frail older adults adopted a forward lean position (increased CPA) compared to healthy older adults. This compensatory posture appears to facilitate torso rotation while reducing lower-limb muscular effort during standing. As such, CPA serves as an indicator of reduced lower-body function in older, frail adults.
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Affiliation(s)
- N Takeshima
- Nobuo Takeshima, PhD, Department of Health and Sports Sciences, School of Health Sciences, Asahi University, 1851 Hozumi, Mizuho, 501-0296 Japan, Phone: +81-58-329-1352, e-mail:
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Kusunoki M, Kimura K, Nagatsuka K, Isaka Y, Uyama O, Yoneda S, Abe H. Platelet Hyperaggregability in Ischemic Cerebrovascular Disease and Effects of Aspirin. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1657237] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryPlatelet aggregation was studied in 24 patients in the chronic stage of ischemic cerebrovascular disease (CVD), with cerebral affluent and effluent blood, i.e., carotid arterial and internal jugular venous blood, and also with peripheral venous blood. Aggregation tests were performed at various final concentrations of sodium arachidonate (A.A.) and ADP. In 17 patients, not taking aspirin, platelet aggregability in jugular venous blood was significantly accentuated compared with that in arterial and peripheral venous blood. This tendency was more marked in the patients with cerebral artery stenosis and/or occlusion than in those with normal cerebral angiogram. In 7 patients taking 500 mg or more oral aspirin, aggregation differences across the brain were not observed and A.A. aggregation and the second phase of ADP aggregation were completely suppressed. These results suggest that a prophylactic administration of aspirin may be beneficial for patients in chronic stage of CVD.
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Affiliation(s)
- M Kusunoki
- The First Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
| | - K Kimura
- The First Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
| | - K Nagatsuka
- The First Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
| | - Y Isaka
- The First Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
| | - O Uyama
- The First Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
| | - S Yoneda
- The First Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
| | - H Abe
- The First Department of Internal Medicine, Osaka University Medical School, Osaka, Japan
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Ozawa T, Matsuyama T, Toiyama Y, Takahashi N, Ishikawa T, Uetake H, Yamada Y, Kusunoki M, Calin G, Goel A. CCAT1 and CCAT2 long noncoding RNAs, located within the 8q.24.21 'gene desert', serve as important prognostic biomarkers in colorectal cancer. Ann Oncol 2018; 28:1882-1888. [PMID: 28838211 DOI: 10.1093/annonc/mdx248] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background 8q24.21 is a frequently amplified genomic region in colorectal cancer (CRC). This region is often referred to as a 'gene desert' due to lack of any important protein-coding genes, highlighting the potential role of noncoding RNAs, including long noncoding RNAs (lncRNAs) located around the proto-oncogene MYC. In this study, we have firstly evaluated the clinical significance of altered expression of lncRNAs mapped to this genomic locus in CRC. Patients and methods A total of 300 tissues, including 280 CRC and 20 adjacent normal mucosa specimens were evaluated for the expression of 12 lncRNAs using qRT-PCR assays. We analyzed the associations between lncRNA expression and various clinicopathological features, as well as with recurrence free survival (RFS) and overall survival (OS) in two independent cohorts. Results The expression of CCAT1, CCAT1-L, CCAT2, PVT1, and CASC19 were elevated in cancer tissues (P = 0.039, <0.001, 0.018, <0.001, 0.002, respectively). Among these, high expression of CCAT1 and CCAT2 was significantly associated with poor RFS (P = 0.049 and 0.022, respectively) and OS (P = 0.028 and 0.015, respectively). These results were validated in an independent patient cohort, in which combined expression of CCAT1 and CCAT2 expression was significantly associated with a poor RFS (HR:2.60, 95% confidence interval [CI]: 1.04-6.06, P = 0.042) and a poor OS (HR:8.38, 95%CI: 2.68-37.0, P < 0.001). We established a RFS prediction model which revealed that combined expression of CCAT1, CCAT2, and carcinoembryonic antigen was a significant determinant for efficiently predicting RFS in stage II (P = 0.034) and stage III (P = 0.001) CRC patients. Conclusions Several lncRNAs located in 8q24.21 locus are highly over-expressed in CRC. High expression of CCAT1 and CCAT2 significantly associates with poor RFS and OS. The expression of these two lncRNAs independently, or in combination, serves as important prognostic biomarkers in CRC.
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Affiliation(s)
- T Ozawa
- Center for Gastrointestinal Research; Center for Translational Genomics and Oncology, Baylor Scott & White Research Institute, Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, USA
| | - T Matsuyama
- Center for Gastrointestinal Research; Center for Translational Genomics and Oncology, Baylor Scott & White Research Institute, Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, USA
| | - Y Toiyama
- Division of Reparative Medicine, Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Mie Japan
| | - N Takahashi
- Gastrointestinal Medical Oncology Division, National Cancer Center Hospital, Tokyo Japan
| | - T Ishikawa
- Department of Specialized Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - H Uetake
- Department of Specialized Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Yamada
- Gastrointestinal Medical Oncology Division, National Cancer Center Hospital, Tokyo Japan
| | - M Kusunoki
- Division of Reparative Medicine, Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Mie University Graduate School of Medicine, Mie Japan
| | - G Calin
- Division of Cancer Medicine, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - A Goel
- Center for Gastrointestinal Research; Center for Translational Genomics and Oncology, Baylor Scott & White Research Institute, Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, USA
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Kawamura S, Matsubara K, Sakai S, Sasaki K, Saito M, Saito K, Yagi M, Norimatsu W, Sasai R, Kusunoki M, Eguchi M, Yin S, Asakura Y, Yui T. Preparation of Stable Silver Nanoparticles Having Wide Red-To-Near-Infrared Extinction. Glob Chall 2018; 2:1700105. [PMID: 31565325 PMCID: PMC6607257 DOI: 10.1002/gch2.201700105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/12/2018] [Indexed: 05/11/2023]
Abstract
The synthesis of silver nanoparticles (AgNPs) within the interlayer space of transparent layered titania nanosheet (TNS) films is investigated. A considerable number of silver ions (≈70% against the cation exchange capacity of the TNS) are intercalated in the TNS films using methyl-viologen-containing TNSs as a precursor. The silver ion (Ag+)-containing TNS films are treated with aqueous sodium tetrahydroborate (NaBH4), resulting in a gradual color change to bright blue. Various structural analyses clearly show that crystalline AgNPs are generated within the interlayer space of the TNSs. The NaBH4-treated films show intense and characteristic near-infrared (NIR) extinction spectra up to 1800 nm. The stability of the AgNPs within the TNS against oxygen and moisture is also investigated, and 96% and 82% of the AgNPs remain after standing in air for 1 month and 1 year, respectively. The NIR extinctions of the AgNP-containing TNS films are further extended by employing different preparation procedures, for example, using sintered TNS films as starting materials and irradiating the Ag+-containing TNSs with ultraviolet (UV) light. The obtained AgNP-containing TNS films exhibit photochemical activities in the production of hydrogen from ammonia borane under visible-light irradiation and the decomposition of nitrogen monoxide under UV-light irradiation.
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Affiliation(s)
- Shiori Kawamura
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Kazuki Matsubara
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Sotaro Sakai
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Kazuhisa Sasaki
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Masataro Saito
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Kenji Saito
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Masayuki Yagi
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
| | - Wataru Norimatsu
- Department of Materials ChemistryGraduate School of EngineeringNagoya UniversityFuro‐cho, Chikusa‐kuNagoya‐shiAichi‐ken464‐8603Japan
| | - Ryo Sasai
- Department of Physics and Materials ScienceInterdisciplinary Graduate School of Science and EngineeringShimane University1060, Nishi‐kawatsu‐choMatsue690‐8504Japan
| | - Michiko Kusunoki
- Institute of Materials and Systems for SustainabilityNagoya UniversityFuro‐cho, Chikusa‐kuNagoya‐shiAichi‐ken464‐8603Japan
| | - Miharu Eguchi
- Electronic Functional Materials GroupPolymer Materials UnitNational Institute for Materials Science (NIMS)1‐1 NamikiTsukubaIbaraki305‐0044Japan
| | - Shu Yin
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University2‐1‐1, KatahiraAoba‐kuSendai980‐8577Japan
| | - Yusuke Asakura
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku University2‐1‐1, KatahiraAoba‐kuSendai980‐8577Japan
| | - Tatsuto Yui
- Department of Materials Science and TechnologyFaculty of EngineeringNiigata University8050 Ikarashi‐2Niigata950‐2181Japan
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Takagane A, Mohri Y, Konishi T, Fukushima R, Noie T, Sueyoshi S, Omura K, Ono S, Kusunoki M, Mochizuki H, Sumiyama Y. Randomized clinical trial of 24 versus 72 h antimicrobial prophylaxis in patients undergoing open total gastrectomy for gastric cancer. Br J Surg 2017; 104:e158-e164. [PMID: 28121044 DOI: 10.1002/bjs.10439] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/08/2016] [Accepted: 10/31/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND Open total gastrectomy carries a high risk of surgical-site infection (SSI). This study evaluated the non-inferiority of antimicrobial prophylaxis for 24 compared with 72 h after open total gastrectomy. METHODS An open-label, randomized, non-inferiority study was conducted at 57 institutions in Japan. Eligible patients were those who underwent open total gastrectomy for gastric cancer. Patients were assigned randomly to continued use of β-lactamase inhibitor for either 24 or 72 h after surgery. The primary endpoint was the incidence of SSI, with non-inferiority based on a margin of 9 percentage points and a 90 per cent c.i. The secondary endpoint was the incidence of remote infection. RESULTS A total of 464 patients (24 h prophylaxis, 228; 72 h prophylaxis, 236) were analysed. SSI occurred in 20 patients (8·8 per cent) in the 24-h prophylaxis group and 26 (11·0 per cent) in the 72-h group (absolute difference -2·2 (90 per cent c.i. -6·8 to 2·4) per cent; P < 0·001 for non-inferiority). However, the incidence of remote infection was significantly higher in the 24-h prophylaxis group. CONCLUSION Antimicrobial prophylaxis for 24 h after total gastrectomy is not inferior to 72 h prophylaxis for prevention of SSI. Shortened antimicrobial prophylaxis might increase the incidence of remote infection. Registration number: UMIN000001062 ( http://www.umin.ac.jp).
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Affiliation(s)
- A Takagane
- Department of Surgery, Hakodate Goryoukaku Hospital, Hakodate, Japan
| | - Y Mohri
- Department of Gastrointestinal and Paediatric Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - T Konishi
- Division of Medical Nutrition, Faculty of Healthcare, Tokyo Healthcare University, Tokyo, Japan
| | - R Fukushima
- Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan
| | - T Noie
- Department of Surgery, NTT Medical Centre, Tokyo, Japan
| | - S Sueyoshi
- Department of Surgery, Omuta City Hospital, Omuta, Japan
| | - K Omura
- Department of Surgery, Ageo Central General Hospital, Saitama, Japan
| | - S Ono
- Division of Critical Care Medicine, Tokyo Medical University Hachioji Medical Centre, Tokyo, Japan
| | - M Kusunoki
- Department of Gastrointestinal and Paediatric Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - H Mochizuki
- Department of Surgery, National Defence Medical College, Tokorozawa, Japan
| | - Y Sumiyama
- Department of Surgery, Toho University Medical Centre, Ohashi Hospital, Tokyo, Japan
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Bao J, Norimatsu W, Iwata H, Matsuda K, Ito T, Kusunoki M. Synthesis of Freestanding Graphene on SiC by a Rapid-Cooling Technique. Phys Rev Lett 2016; 117:205501. [PMID: 27886482 DOI: 10.1103/physrevlett.117.205501] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Indexed: 06/06/2023]
Abstract
Graphene has a negative thermal expansion coefficient; that is, when heated, the graphene lattice shrinks. On the other hand, the substrates typically used for graphene growth, such as silicon carbide, have a positive thermal expansion coefficient. Hence, on cooling graphene on SiC, graphene expands but SiC shrinks. This mismatch will physically break the atomic bonds between graphene and SiC. We have demonstrated that a graphenelike buffer layer on SiC can be converted to a quasifreestanding monolayer graphene by a rapid-cooling treatment. The decoupling of graphene from the SiC substrate was actually effective for reducing the electric carrier scattering due to interfacial phonons. In addition, the rapidly cooled graphene obtained in this way was of high-quality, strain-free, thermally stable, and strongly hole doped. This simple, classical, but quite novel technique for obtaining quasifreestanding graphene could open a new path towards a viable graphene-based semiconductor industry.
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Affiliation(s)
- Jianfeng Bao
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan
| | - Wataru Norimatsu
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Hiroshi Iwata
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Keita Matsuda
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Takahiro Ito
- Synchrotron Radiation Research Center, Nagoya University, Nagoya 464-8603, Japan
| | - Michiko Kusunoki
- Institute of Materials and Systems for Sustainability, Nagoya University, Nagoya 464-8603, Japan
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Yamaguchi S, Kunieda K, Sato T, Naramoto Y, Kobayashi M, Ogata Y, Furuhata T, Takii Y, Kusunoki M, Maehara Y, Koda K, Okuno K, Ohno M, Mishima H, Sadahiro S, Hamada C, Sakamoto J, Saji S, Tomita N. Phase III trial of 24 weeks vs. 48 weeks capecitabine adjuvant chemotherapy for patients with stage III colon cancer: Final results of JFMC37-0801. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kusunoki M, Natsume Y, Sato D, Tsutsui H, Miyata T, Tsutsumi K, Suga T, Oshida Y. Luseogliflozin, A Sodium Glucose Co-transporter 2 Inhibitor, Alleviates Hepatic Impairment in Japanese Patients with Type 2 Diabetes. Drug Res (Stuttg) 2016; 66:603-606. [DOI: 10.1055/s-0042-111515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. Kusunoki
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - Y. Natsume
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - D. Sato
- Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - H. Tsutsui
- General Medical Education Center of Teikyo University, Tokyo, Japan
| | - T. Miyata
- Vascular Center, Sanno Medical Center, Tokyo, Japan
| | - K. Tsutsumi
- Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - T. Suga
- Akishima Clinic, Nagoya, Japan
| | - Y. Oshida
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
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Imaoka H, Toiyama Y, Fujikawa H, Hiro J, Saigusa S, Tanaka K, Inoue Y, Mohri Y, Mori T, Kato T, Toden S, Goel A, Kusunoki M. Circulating microRNA-1290 as a novel diagnostic and prognostic biomarker in human colorectal cancer. Ann Oncol 2016; 27:1879-86. [PMID: 27502702 DOI: 10.1093/annonc/mdw279] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 07/12/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Circulating microRNAs (miRNAs) are attracting major interest as potential non-invasive biomarkers for colorectal cancer (CRC). This study aimed to identify a novel serum miRNA biomarker for the early detection and/or evaluating prognosis of CRC patients. PATIENTS AND METHODS Comprehensive miRNA array analysis was carried out using serum samples from patients with colorectal neoplasia and healthy controls. Next, to verify whether the candidate miRNA possessed a secretory potential, we screened miRNA expression levels in culture medium from 2 CRC cell lines, followed by serum analysis from 12 stage IV CRC, 12 adenoma, and 12 control subjects. Thereafter, we validated expression of candidate miRNAs in 179 primary CRC tissues, as well as serum samples from an independent cohort of 211 CRCs, 56 adenomas, and 57 control subjects. RESULTS Through microarray analysis, we identified significantly higher levels of miRNA-1290 (miR-1290) in serum from patients with colorectal adenomas and cancers. We verified miR-1290 overexpression in serum of CRC patients in a training cohort. In the validation cohort, serum miR-1290 levels were significantly up-regulated in patients with colorectal adenomas (P < 0.0001) and cancers (P < 0.0001). Serum miR-1290 levels could robustly distinguish adenoma [area under the curve (AUC) = 0.718] and CRC patients (AUC = 0.830) from normal subjects. High miR-1290 expression in serum and tissue was significantly associated with tumor aggressiveness and poor prognosis. Moreover, serum miR-1290 levels were an independent prognostic factor [hazard ratio (HR) = 4.51; 95% confidence interval (CI) = 1.23-23.69; P = 0.0096] and an independent predictor for tumor recurrence (hazard ratio = 3.92; 95% confidence interval = 1.11-25.14; P = 0.032) in CRC. CONCLUSIONS Serum miR-1290 is a novel biomarker for early detection, recurrence, and prognosis in CRC.
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Affiliation(s)
- H Imaoka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - Y Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - H Fujikawa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - J Hiro
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - S Saigusa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - K Tanaka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - Y Inoue
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - Y Mohri
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
| | - T Mori
- Surgery, Moriei Hospital, Kuwana City
| | - T Kato
- Surgery, Tohyama Hospital, Tsu City, Japan
| | - S Toden
- Center for Gastrointestinal Research and Center for Epigenetics, Cancer Prevention and Cancer Genomics, Baylor Research Institute and Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, USA
| | - A Goel
- Center for Gastrointestinal Research and Center for Epigenetics, Cancer Prevention and Cancer Genomics, Baylor Research Institute and Charles A Sammons Cancer Center, Baylor University Medical Center, Dallas, USA
| | - M Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie
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Kusunoki M, Sato D, Nakamura T, Oshida Y, Tsutsui H, Natsume Y, Tsutsumi K, Miyata T. The Beneficial Effects of the DPP-4 Inhibitor Alogliptin on Hemoglobin A1c and Serum Lipids in Japanese Patients with Type 2 Diabetes. Drug Res (Stuttg) 2015; 66:18-22. [PMID: 26125284 DOI: 10.1055/s-0035-1547254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
It has been reported that dipeptidyl peptidase-4 (DPP-4) inhibitors improve hemoglobin A1c (HbA1c) levels in diabetic patients and may also improve the serum lipids. However, few studies have examined relationship between the effects of the DPP-4 inhibitor and the pretreatment HbA1c levels in diabetic patients. Furthermore, it has been reported that prolonged treatment with DPP-4 inhibitors may make glycemic control difficult in some patients. In the present study, we investigated (1) the effect of the DPP-4 inhibitor alogliptin on HbA1c, blood glucose (BG), and serum lipid in Japanese patients with type 2 diabetes, (2) the relationship between the HbA1c levels at baseline and the effects of alogliptin, and (3) the effects of switching of the DPP-4 inhibitor to alogliptin after 12 months' administration of sitagliptin on glycemic control and serum lipids. After 6-months' treatment with alogliptin, we found reductions of HbA1c, BG, and serum total cholesterol, and LDL cholesterol levels. Pretreatment level of HbA1c was well correlated with the degree of reduction of both HbA1c and BG levels after the treatment. Also, alogliptin kept levels of HbA1c and BG reduced by sitagliptin for 12 months, and relapsing of these levels and serum lipids were not observed. This study revealed that alogliptin improved HbA1c, BG, and serum lipid profiles in type 2 diabetic patients, and the effect of alogliptin on HbA1c and BG levels was correlated with HbA1c level at pretreatment. Furthermore, long-term treatment with alogliptin did not cause relapsing of glycemic control and serum lipids.
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Affiliation(s)
- M Kusunoki
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - D Sato
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - T Nakamura
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Y Oshida
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - H Tsutsui
- General Medical Education Center of Teikyo University, Tokyo, Japan
| | - Y Natsume
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - K Tsutsumi
- Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - T Miyata
- Vascular Center, Sanno Medical Center, Tokyo, Japan
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14
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Takahashi Y, Sheridan P, Niida A, Sawada G, Uchi R, Mizuno H, Kurashige J, Sugimachi K, Sasaki S, Shimada Y, Hase K, Kusunoki M, Kudo S, Watanabe M, Yamada K, Sugihara K, Yamamoto H, Suzuki A, Doki Y, Miyano S, Mori M, Mimori K. The AURKA/TPX2 axis drives colon tumorigenesis cooperatively with MYC. Ann Oncol 2015; 26:935-942. [PMID: 25632068 DOI: 10.1093/annonc/mdv034] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 01/15/2015] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The MYC oncogene has long been established as a central driver in many types of human cancers including colorectal cancer. However, the realization of MYC-targeting therapies remains elusive; as a result, synthetic lethal therapeutic approaches are alternatively being explored. A synthetic lethal therapeutic approach aims to kill MYC-driven tumors by targeting a certain co-regulator on the MYC pathway. PATIENTS AND METHODS We analyzed copy number and expression profiles from 130 colorectal cancer tumors together with publicly available datasets to identify co-regulators on the MYC pathway. Candidates were functionally tested by in vitro assays using colorectal cancer and normal fibroblast cell lines. Additionally, survival analyses were carried out on another 159 colorectal cancer patients and public datasets. RESULTS Our in silico screening identified two MYC co-regulator candidates, AURKA and TPX2, which are interacting mitotic regulators located on chromosome 20q. We found the two candidates showed frequent co-amplification with the MYC locus while expression levels of MYC and the two genes were positively correlated with those of MYC downstream target genes across multiple cancer types. In vitro, the aberrant expression of MYC, AURKA and TPX2 resulted in more aggressive anchorage-independent growth in normal fibroblast cells. Furthermore, knockdown of AURKA or TPX2, or treatment with an AURKA-specific inhibitor effectively suppressed the proliferation of MYC-expressing colorectal cancer cells. Additionally, combined high expression of MYC, AURKA and TPX2 proved to be a poor prognostic indicator of colorectal cancer patient survival. CONCLUSIONS Through bioinformatic analyses and experiments, we proposed TPX2 and AURKA as novel co-regulators on the MYC pathway. Inhibiting the AURKA/TPX2 axis would be a novel synthetic lethal therapeutic approach for MYC-driven cancers.
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Affiliation(s)
- Y Takahashi
- Department of Surgery, Kyushu University Beppu Hospital, Beppu; Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita
| | - P Sheridan
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo
| | - A Niida
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo
| | - G Sawada
- Department of Surgery, Kyushu University Beppu Hospital, Beppu; Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita
| | - R Uchi
- Department of Surgery, Kyushu University Beppu Hospital, Beppu
| | - H Mizuno
- Department of Discovery Research, Kamakura Research Laboratories, Chugai Pharmaceutical Co., Ltd, Kamakura
| | - J Kurashige
- Department of Surgery, Kyushu University Beppu Hospital, Beppu
| | - K Sugimachi
- Department of Surgery, Kyushu University Beppu Hospital, Beppu
| | - S Sasaki
- Department of Surgery, Omori Red Cross Hospital, Tokyo
| | - Y Shimada
- Division of Gastrointestinal Oncology, National Cancer Center Hospital, Tokyo
| | - K Hase
- Department of Surgery, National Defense Medical College, Tokorozawa
| | - M Kusunoki
- Department of Surgery, Mie University, Tsu
| | - S Kudo
- Digestive Disease Center, Showa University Northern Yokohama Hospital, Yokohama
| | - M Watanabe
- Department of Surgery, Kitasato University, Sagamihara
| | - K Yamada
- Department of Surgery, Takano Hospital, Kumamoto
| | - K Sugihara
- Department of Surgery, Tokyo Medical and Dental University, Tokyo
| | - H Yamamoto
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita
| | - A Suzuki
- Division of Cancer Genetics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Y Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita
| | - S Miyano
- Laboratory of DNA Information Analysis, Human Genome Center, Institute of Medical Science, University of Tokyo, Tokyo
| | - M Mori
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita
| | - K Mimori
- Department of Surgery, Kyushu University Beppu Hospital, Beppu.
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Kusunoki M, Sato D, Nakamura T, Oshida Y, Tsutsui H, Natsume Y, Tsutsumi K, Miyata T. DPP-4 Inhibitor Teneligliptin Improves Insulin Resistance and Serum Lipid Profile in Japanese Patients with Type 2 Diabetes. Drug Res (Stuttg) 2014; 65:532-4. [PMID: 25368904 DOI: 10.1055/s-0034-1390419] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Dipeptidyl peptidase-4 (DPP-4) inhibitors have been reported to improve the glycemic control and blood hemoglobin A1c (HbA1c) concentrations. However, there are few reports as yet suggesting that DPP-4 inhibitors may also improve insulin resistance and the serum lipid profile in the clinical setting. This study was aimed at investigating the effect of 14-week treatment with teneligliptin (20 mg/day) on the homeostasis model assessment ratio (HOMA-R), an indicator of insulin resistance, and serum lipid profile in 9 patients with type 2 diabetes. The treatment produced a significant decrease of the blood glucose and HbA1c concentration (blood glucose: p=0.008; HbA1c: p=0.038), and also improved HOMA-R (p=0.039). Furthermore, the patients showed elevation of the serum HDL-cholesterol level (p=0.032), and a tendency towards reduction of the serum triglyceride level. The results indicate that teneligliptin acts not only to improve the blood glucose control, but also to improve the insulin resistance and serum lipid profile in Japanese type 2 diabetes patients.
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Affiliation(s)
- M Kusunoki
- Department of Internal Medicine, Medical Clinic, Aichi Medical University, Nagoya, Japan
| | - D Sato
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - T Nakamura
- Department of Biomedical Information Engineering, Graduate School of Medical Science, Yamagata University, Yamagata, Japan
| | - Y Oshida
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - H Tsutsui
- Department of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo, Japan
| | - Y Natsume
- Department of Sports Medicine, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - K Tsutsumi
- Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - T Miyata
- Vascular Center, Sanno Medical Center, Tokyo, Japan
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Abstract
We review here recent progress on epitaxial graphene grown on a SiC substrate. Epitaxial graphene can be easily grown by heating the SiC single crystal in a high vacuum or in an inert gas atmosphere. The SiC surfaces used for graphene growth contain Si- and C-terminated faces. On the Si-face, homogeneous and clean graphene can be grown with a controlled number of layers, and the carrier mobility reaches as high as several m(2) V s(-1), although this is reduced by the presence of the substrate steps. On the C-face, although the number of layers is not homogeneous, twisted bilayer graphene can be grown, which is expected to be the technique of choice to modify the electronic structure of graphene. From the application point of view, graphene on SiC will be the platform used to fabricate high-speed electronic devices and dense graphene nanoribbon arrays, which will be used to introduce a bandgap.
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Affiliation(s)
- Wataru Norimatsu
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya-shi, Aichi-ken 464-8603, Japan.
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17
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Tanaka K, Shimura T, Kitajima T, Kondo S, Ide S, Okugawa Y, Saigusa S, Toiyama Y, Inoue Y, Araki T, Uchida K, Mohri Y, Kusunoki M. Tropomyosin-related receptor kinase B at the invasive front and tumour cell dedifferentiation in gastric cancer. Br J Cancer 2014; 110:2923-34. [PMID: 24853179 PMCID: PMC4056051 DOI: 10.1038/bjc.2014.228] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 02/21/2014] [Accepted: 04/08/2014] [Indexed: 12/19/2022] Open
Abstract
Background: Tropomyosin-related receptor kinase B (TrkB) promotes proliferation and invasion, relating to poor prognosis of various malignancies. We examined the role of TrkB at the invasive front of gastric cancer (GC) and its association with tumour cell dedifferentiation and tumour budding. Methods: Immunoreactive TrkB was evaluated at the tumour centre and margin using whole-tissue sections of 320 GC patients. Tumour cell dedifferentiation was defined as higher histologic grade at the tumour margin than the surface or tumour centre. Tumour budding was also scored on cytokeratin-stained sections. Results: Sixty-five patients (20%) showed higher TrkB expression at the invasive front (TrkB expression was higher at the tumour margin than tumour centre). It was significantly associated with several aggressive phenotypes in the full cohort (n=320). It showed a prognostic significance in test subgroup (n=98) and was identified as an independent prognostic factor (HR=2.09; 95% CI: 1.26–3.53) by multivariate analysis in validation subgroup (n=222). Twenty-one patients showed tumour cell dedifferentiation. In predominantly differentiated tumour, higher TrkB at the invasive front was significantly associated with tumour budding rather than tumour cell dedifferentiation. Conclusions: Assessment of immunoreactive TrkB at the invasive front by whole-tissue sections provides prognostic information for GC patients.
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Affiliation(s)
- K Tanaka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - T Shimura
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - T Kitajima
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - S Kondo
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - S Ide
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Y Okugawa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - S Saigusa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Y Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Y Inoue
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - T Araki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - K Uchida
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - Y Mohri
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
| | - M Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan
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Ogasawara N, Norimatsu W, Irle S, Kusunoki M. Growth mechanisms and selectivity for graphene or carbon nanotube formation on SiC (0001¯): A density-functional tight-binding molecular dynamics study. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.02.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wang N, Chen H, He H, Norimatsu W, Kusunoki M, Koumoto K. Enhanced thermoelectric performance of Nb-doped SrTiO3 by nano-inclusion with low thermal conductivity. Sci Rep 2013; 3:3449. [PMID: 24316665 PMCID: PMC3856403 DOI: 10.1038/srep03449] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 11/19/2013] [Indexed: 12/04/2022] Open
Abstract
Authors reported an effective path to increase the electrical conductivity while to decrease the thermal conductivity, and thus to enhance the ZT value by nano-inclusions. By this method, the ZT value of Nb-doped SrTiO3 was enhanced 9-fold by yttria stabilized zirconia (YSZ) nano-inclusions. YSZ inclusions, located inside grain and in triple junction, can reduce the thermal conductivity by effective interface phonon scattering, enhance the electrical conductivity by promoting the abnormal grain growth, and thus lead to the obvious enhancement of ZT value, which strongly suggests that, it is possible to not only reduce the thermal conductivity, but also increase the electrical conductivity by nano-inclusions with low thermal conductivity. This study will give some useful enlightenment to the preparation of high-performance oxide thermoelectric materials.
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Affiliation(s)
- Ning Wang
- University of Electronic Science and Technology of China, State Key Laboratory of Electronic Thin Films and Integrated Devices, Chengdu, 610054, P. R. China
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Chen T, Kusunoki M, Sato D, Tsutsui H, Nakamura T, Miyata T, Oshida Y. Clinical effect of addition of beraprost sodium to pioglitazone treatment on the blood glucose levels in patients with type 2 diabetes mellitus. Exp Clin Endocrinol Diabetes 2013; 121:624-7. [PMID: 24002894 DOI: 10.1055/s-0033-1354356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In recent years, the number of patients with type 2 diabetes mellitus caused by insulin resistance has continued to increase in Japan. Insulin resistance is considered to be closely related to the risk of cardiovascular diseases and atherosclerotic diseases, represented by arteriosclerosis obliterans (ASO). Therefore, improvement of insulin resistance is one of the important strategies in the treatment of type 2 diabetes mellitus. At present, α-glucosidase inhibitors, incretin-related drugs, and thiazolidinediones are among the most important oral hypoglycemic drugs used to improve insulin resistance. In this study, the effect of beraprost sodium, a prostaglandin I2 derivative, in the treatment of type 2 diabetes mellitus was investigated. In type 2 diabetic patients with ASO who were under treatment with pioglitazone, additional treatment with beraprost sodium exerted a significant synergistic effect in reducing the serum HbA1c levels as compared to treatment with pioglitazone alone. This result indicates that concomitant administration of pioglitazone and beraprost sodium may be useful in the treatment of diabetes -mellitus.
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Affiliation(s)
- T Chen
- Department of Sports Medicine, Graduate School of Medicine, Nagoya University, Nagoya, Japan
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21
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Kobayashi M, Mohri Y, Ohkita Y, Kusunoki M. P207 Impact of empiric antibiotic treatment and the risk factors for intra-abdominal infection after surgery for colon and rectum. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70448-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Mohri Y, Kusunoki M, Kobayashi M, Okita Y. KS5-1 Antimicrobial prophylaxis and best practice for prevention of SSI in Japan. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70143-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tanaka N, Usukura J, Kusunoki M, Saito Y, Sasaki K, Tanji T, Muto S, Arai S. Development of an environmental high-voltage electron microscope for reaction science. Microscopy (Oxf) 2013; 62:205-15. [DOI: 10.1093/jmicro/dfs095] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kusunoki M, Yanagi H, Kamikonya N, Noda M, Yamamura T. Significant effects of preoperative intraluminal brachytherapy on the survival rate after resection of rectal carcinoma. Int J Oncol 2012; 9:645-51. [PMID: 21541564 DOI: 10.3892/ijo.9.4.645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
We investigated whether or not preoperative intraluminal brachytherapy (IBT) contributes to a prolongation of the survival after resection of rectal carcinoma. Eighty-five patients with middle and lower rectal carcinoma with penetration into or through the rectal wall were treated with preoperative IBT (30 Gy) and radical resection. The patients were divided into the major effect group (n=59, proportion of remaining viable cells less than 25% of the background stroma) and the minor effect group (n=26, proportion of viable cells over 25%). The major effect group had more down-staged tumors, and a lower rate of positive nodes. Local recurrence rate, distant recurrence rate, and survival rate of the major effect group were 9% (31% in the minor effect group), 15% (55% in minor group) and 74% (36% in minor group), respectively (all parameters: p<0.05). Multivariate analysis indicated that nodal involvement, tumor depth, and proportion of viable cells were the prognostic factors. Preoperative IBT affected not only the tumor morphology but also the prognosis. Our criterion of the proportion of residual viable cells was significantly correlated to the patients' survival. The analyses revealed the positive effects of IBT on the prognosis of rectal cancer.
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Affiliation(s)
- M Kusunoki
- HYOGO MED UNIV,DEPT RADIOL,NISHINOMIYA,HYOGO 663,JAPAN
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25
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Shimwell NJ, Ward DG, Mohri Y, Mohri T, Pallan L, Teng M, Miki YC, Kusunoki M, Tucker O, Wei W, Morse J, Johnson PJ. Macrophage migration inhibitory factor and DJ-1 in gastric cancer: differences between high-incidence and low-incidence areas. Br J Cancer 2012; 107:1595-601. [PMID: 22968650 PMCID: PMC3493758 DOI: 10.1038/bjc.2012.405] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND There is a need for sensitive and specific blood-borne markers for the detection of gastric cancer. Raised serum macrophage inhibitory factor (MIF) levels have been proposed as a marker for gastric cancer diagnosis but, to date, studies have only encompassed patients from high-incidence areas. METHODS We have compared the serum concentration of MIF in a large cohort of UK and Japanese gastric cancer patients, together with appropriate control subjects (age and gender matched). Carcinoembryonic antigen and H. pylori IgG were also measured, as was DJ-1, a novel candidate protein biomarker identified by analysis of gastric cancer cell line secretomes. RESULTS Marked elevations of the serum concentration of MIF and DJ-1 were seen in Japanese patients with gastric cancer compared with Japanese controls, a trend not seen in the UK cohort. These results could not be accounted for by differences in age, disease stage or H. pylori status. CONCLUSION In regions of high, but not low incidence of gastric cancer, both MIF and DJ-1 have elevated serum concentrations in gastric cancer patients, compared with controls. This suggests that differing mechanisms of disease pathogenesis may be at play in high- and low-incidence regions.
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Affiliation(s)
- N J Shimwell
- Cancer Research UK School of Cancer Sciences, University of Birmingham, Vincent Drive, Edgbaston, Birmingham B15 2TT, UK
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Norimatsu W, Hirata K, Yamamoto Y, Arai S, Kusunoki M. Epitaxial growth of boron-doped graphene by thermal decomposition of B4C. J Phys Condens Matter 2012; 24:314207. [PMID: 22820622 DOI: 10.1088/0953-8984/24/31/314207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We grew graphene by thermal decomposition of B(4)C and investigated its features by high-resolution transmission electron microscope observations. At temperatures higher than 1600 °C in a vacuum, B(4)C decomposes and graphene forms epitaxially on its surface. The number and the morphology of the graphene layers depend on the surface orientation. An electron diffraction technique revealed the presence of a superstructure with a two-times larger unit cell, which is consistent with the structure of BC(3). We have directly confirmed boron in the graphene layers by electron energy loss spectroscopy measurements and boron-mapping experiments.
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Affiliation(s)
- Wataru Norimatsu
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya-shi, Aichi-ken, Japan.
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Inoue Y, Toiyama Y, Tanaka K, Uchida K, Mohri Y, Kusunoki M. Oncology Market Research Provides a Feasible Index for Standardization of Colorectal Cancer Chemotherapy. Jpn J Clin Oncol 2011; 41:1203-8. [DOI: 10.1093/jjco/hyr123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Unno H, Hatakeyama T, Kamiya T, Kusunoki M, Nakamura-Tsuruta S, Hirabayashi J, Goda S. Crystal structure of CEL-IV, isolated from a sea cucumber, Cucumaria echinata. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311086168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Kusunoki M, Ozaki T, Nakagawa A, Hase T. Distant residues of maize glutamine synthetase affecting substrate affinity. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311080378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Inoue Y, Saigusa S, Hiro J, Toiyama Y, Tanaka K, Mohri Y, Kusunoki M. Clinical and molecular comparison between short- and long-course preoperative radiotherapy for rectal cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Tanaka K, Morimoto Y, Toiyama Y, Saigusa S, Okugawa Y, Inoue Y, Uchida K, Matsushita K, Kawamura M, Mizoguchi A, Kusunoki M. Intravital evaluation of time-course efficacy of anticancer drugs on colorectal liver metastases in the same living mice using two-photon laser scanning microscopy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Kawamura M, Toiyama Y, Tanaka K, Yasuda H, Fujikawa H, Saigusa S, Inoue Y, Miki C, Yamaguchi M, Kusunoki M. Evaluation of serum CXCL5 as a serum marker for prognosis of colorectal cancer patients. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
442 Background: CXCL5 is known as CXC chemokine which promotes angiogenesis related to cancer. However, the function of serum level of CXCL5 (sCXCL5) has not been fully studied in colorectal cancer. The purpose of this study was to evaluate the relationships between preoperative sCXCL5 and clinicopathological features and prognosis in colorectal cancer. Methods: This was a single-institution, retrospective study. Preoperative serum samples of 250 colorectal cancer patients (between 1998 and 2007, median age: 65.3 years, male 159/female 91) were available for the study, and 33 normal serum was examined and used as a control. sCXCL5 level was assayed using a commercially available enzyme-linked immunosorbent assay kit, and analyzed statistically. Results: Mean level of sCXCL5 was significantly higher in colorectal cancer patients than in control group (p=0.013). Patients with liver metastases had significantly higher sCXCL5 level than those without metastases (p=0.0086), and in logistic analysis, sCXCL5 was an independent marker for predicting liver metastasis (p=0.040). Overall survival of patients with elevated sCXCL5 level was significantly worse than those with lower sCXCL5 (p=0.0006). Conclusions: Preoperative sCXCL5 level was increased in colorectal cancer patients compared to in healthy volunteer and elevated sCXCL5 was correlated with liver metastasis and poor prognosis for overall survival in colorectal cancer patients. Elevated sCXCL5 has been proposed as a useful predictive marker for liver metastasis and overall survival in colorectal cancer. No significant financial relationships to disclose.
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Affiliation(s)
- M. Kawamura
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - Y. Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - K. Tanaka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - H. Yasuda
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - H. Fujikawa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - S. Saigusa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - Y. Inoue
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - C. Miki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - M. Yamaguchi
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
| | - M. Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University, Mie, Japan
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Matsushita K, Toiyama Y, Tanaka K, Yasuda H, Saigusa S, Fujikawa H, Inoue Y, Miki C, Kageyama S, Kusunoki M. Use of serum CXCL16 to predict liver metastasis and prognosis in colorectal cancer patients. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
424 Background: Colorectal cancer (CRC) is one of the major causes of cancer death worldwide. In CRC, serum levels of CEA have become well-established prognostic indicators. However, it is not generally accepted as optimal in its prognostic power. The aim of this study was to identify novel and reliable serum prognostic markers. Methods: We performed cytokine array to identify novel prognostic serum marker, and CXCL16 was selected. To investigate the relationships between sCXCL16 and clinicopathological findings including survival, the serum levels of CXCL16 in 237 CRC patients and 20 normal volunteers were assessed by enzyme-linked immunosorbent assay. Furthermore, we investigated proliferation, invasion and wound healing assay to investigate the biological role of CXCL16 to colon cancer cell by recombinant CXCL16 exposing to HT-29. Results: The mean sCXCL16 concentration in patients was significantly higher than that in normal volunteers (p<0.0001). In addition, sCXCL16 levels increased significantly in accordance with the progression of UICC stage classification (p < 0.05). In clinicopathologic findings, sCXCL16 was significantly associated with the presence of lymph node (p=0.019) and the presence of liver metastases (p=0.011). Elevated sCXCL16 level demonstrated a significant association with poor survival, and was an independent risk factor for poor survival. Furthermore, sCXCL16 was an independent marker for predicting liver metastasis (logistic analysis; p=0.0015). In vitro, recombinant CXCL16 promoted epithelial mesencymal transition (EMT) phenotype characterized by impaired E-cadherin and induction of Vimentin. In addition, CXCL16 promoted cell growth, migration and invasion. Conclusions: Our data demonstrate that preoperative sCXCL16 level increased in colorectal cancer patients, and that sCXCL16 correlated with liver metastasis, and is an independent prognostic factor for overall survival. Elevated CXCL16 has been proposed as a useful predictive marker for liver metastasis and overall survival in CRC. In vitro, CXCL16/CXCR6 axis might play an importance role in mediating cell survival, migration and invasion by EMT in CRC cell. No significant financial relationships to disclose.
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Affiliation(s)
- K. Matsushita
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Y. Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - K. Tanaka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - H. Yasuda
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - S. Saigusa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - H. Fujikawa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Y. Inoue
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - C. Miki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - S. Kageyama
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - M. Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Department of Immuno-Gene Therapy, Mie University Graduate School of Medicine, Tsu, Mie, Japan
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Toiyama Y, Tanaka K, Yasuda H, Saigusa S, Fujikawa H, Mohri Y, Inoue Y, Miki C, Tabata T, Kusunoki M. Use of co-expression of HGF and c-Met to predict peritoneal dissemination established by autocrine HGF/c-Met signaling in gastric cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.40] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
40 Background: Epithelial mesencymal transition (EMT) promotes facilitates migration and invasion of epithelial tumour cells. EMT is induced by growth factors implicated in theses process such as hepatocyte growth factor (HGF). Our aim of this study is whether HGF/c-Met pathway is associated with metastasis of gastric cancer (GC), especially in peritoneal dissemination (PD). Methods: HGF and c-Met expression and EMT related molecules were evaluated using real-time PCR and immunohistochemistry in GC tissues. The role of HGF/c-Met pathway for EMT and anoikis was determined and c-Met TKI (SU11274) was tested for their ability to block HGF-induced biological effects in vitro and vivo. Results: In HGF(-)c-Met(+) GC cells,recombinant HGF promoted EMT phenotype characterized by morphology, impaired E-cadherin and induction of Vimentin. HGF promoted cell growth, invasiveness, migration ability and inhibition of anoikis. SU11274 blocked HGF-induced EMT and the biological effects in vitro. In contrast of HGF(+)c-Met(+) GC cells, HGF exposure was not affected biological outcome of EMT and anoikis but SU11274 blocked biological effect as same as in HGF(-)c-Met(+) GC cells. In vivo, HGF(+)c-Met(+) GC cell line only established PD and SU11274 intraperitoneally caused an inhibition of PD growth. Clinically, HGF expression was significantly positive correlated with c-Met expression in GC specimens. Increased HGF and c-Met demonstrated a significantly associated with poor prognosis and can predict PD, respectively. Furthermore, HGF was one of the independent factors for predicting PD. Immunohistochemical analysis showed HGF and c-Met were predominantly co-expressed in cancer cell of both primary GC and PD. Conclusions: We have demonstrated that HGF/c-Met pathway as an inducer of EMT and anoikis inhibition in GC cell. Co-expression of HGF and c-Met implicates its potential to promote PD in GC. Blocking the autocrine HGF/c-Met pathway may be clinically useful for the treatment of PD in GC. No significant financial relationships to disclose.
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Affiliation(s)
- Y. Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - K. Tanaka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - H. Yasuda
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - S. Saigusa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - H. Fujikawa
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - Y. Mohri
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - Y. Inoue
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - C. Miki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - T. Tabata
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
| | - M. Kusunoki
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Mie, Japan
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Saigusa S, Tanaka K, Toiyama Y, Yokoe T, Okugawa Y, Koike Y, Fujikawa H, Inoue Y, Miki C, Kusunoki M. Clinical significance of CD133 and hypoxia inducible factor-1α gene expression in rectal cancer after preoperative chemoradiotherapy. Clin Oncol (R Coll Radiol) 2010; 23:323-32. [PMID: 20970309 DOI: 10.1016/j.clon.2010.09.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 09/09/2010] [Accepted: 09/13/2010] [Indexed: 12/13/2022]
Abstract
AIMS The mechanism of distant recurrence in rectal cancer after preoperative chemoradiotherapy (CRT) has yet to be fully elucidated. Further improvements in survival rates cannot be achieved without decreasing distant recurrence after preoperative CRT. Recently, it was reported that hypoxic conditions were correlated with cancer stem cell generation. Therefore, we investigated the correlation between the expression of CD133 and hypoxia inducible factor-1α (HIF-1α), and their association with clinical outcome. MATERIALS AND METHODS Fifty-two patients with rectal cancer underwent preoperative CRT. Residual cancer cells after CRT were obtained from formalin-fixed paraffin-embedded specimens using micro-dissection. The expression levels of CD133 (PROM1) and HIF-1α genes were measured using real-time reverse transcription polymerase chain reaction. The correlation between expression and irradiation was evaluated using colon cancer cell lines. Immunohistochemical staining of these proteins after CRT was also investigated. RESULTS We observed a significant inverse correlation between the gene expression of CD133 (PROM1) and HIF-1α genes in residual cancer cells after CRT. Elevated CD133 gene expression was associated with distant recurrence and poor recurrence-free survival. Elevated HIF-1α gene expression was associated with poor overall survival. In vitro, the change in gene expression levels after irradiation showed inverse patterns. Immunohistochemical analyses showed that residual cancer cells strongly expressed CD133 and lacked HIF-1α expression. CONCLUSION Our results suggest that CD133 and HIF-1α expression is associated with tumour re-growth and distant recurrence after CRT. These results may assist in clarifying the development of future cancer therapeutics in rectal cancer patients undergoing preoperative CRT.
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Affiliation(s)
- S Saigusa
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, Japan.
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Wan C, Wang Y, Wang N, Norimatsu W, Kusunoki M, Koumoto K. Development of novel thermoelectric materials by reduction of lattice thermal conductivity. Sci Technol Adv Mater 2010; 11:044306. [PMID: 27877347 PMCID: PMC5090338 DOI: 10.1088/1468-6996/11/4/044306] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 09/20/2010] [Accepted: 08/08/2010] [Indexed: 05/23/2023]
Abstract
Thermal conductivity is one of the key parameters in the figure of merit of thermoelectric materials. Over the past decade, most progress in thermoelectric materials has been made by reducing their thermal conductivity while preserving their electrical properties. The phonon scattering mechanisms involved in these strategies are reviewed here and divided into three groups, including (i) disorder or distortion of unit cells, (ii) resonant scattering by localized rattling atoms and (iii) interface scattering. In addition, we propose construction of a 'natural superlattice' in thermoelectric materials by intercalating an MX layer into the van der Waals gap of a layered TX2 structure which has a general formula of (MX)1+x (TX2) n (M=Pb, Bi, Sn, Sb or a rare earth element; T=Ti, V, Cr, Nb or Ta; X=S or Se and n=1, 2, 3). We demonstrate that one of the intercalation compounds (SnS)1.2(TiS2)2 has better thermoelectric properties compared with pure TiS2 in the direction parallel to the layers, as the electron mobility is maintained while the phonon transport is significantly suppressed owing to the reduction in the transverse phonon velocities.
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Affiliation(s)
- Chunlei Wan
- Graduate School of Engineering, Nagoya University, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Kawaguchi, Japan
| | - Yifeng Wang
- Graduate School of Engineering, Nagoya University, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Kawaguchi, Japan
| | - Ning Wang
- Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Wataru Norimatsu
- CREST, Japan Science and Technology Agency, Kawaguchi, Japan
- EcoTopia Science Institute, Nagoya University, Nagoya, Japan
| | - Michiko Kusunoki
- CREST, Japan Science and Technology Agency, Kawaguchi, Japan
- EcoTopia Science Institute, Nagoya University, Nagoya, Japan
| | - Kunihito Koumoto
- Graduate School of Engineering, Nagoya University, Nagoya, Japan
- CREST, Japan Science and Technology Agency, Kawaguchi, Japan
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Norimatsu W, Kusunoki M. Transmission electron microscope observation of interface structures of graphene on 6H-SiC. J Nanosci Nanotechnol 2010; 10:3884-3889. [PMID: 20355384 DOI: 10.1166/jnn.2010.1998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
High-resolution transmission electron microscopic cross-sectional observations of graphene-on-SiC(0001) were carried out to directly observe the interface structure. A first principles calculation allowed us to understand the interface structures and their electronic states. Our observations revealed a metastable transitional interface structure formed by decomposition of a single SiC bilayer as well as complete honeycomb graphene formed by the decomposition of three SiC bilayers. The calculations further showed that the differences in the interface structures should strongly influence the electronic states, producing either metallic or semiconducting behavior. These results may help to resolve the controversy over the electronic states of graphene-on-SiC, and promote more accurate band-gap engineering via surface decomposition.
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Affiliation(s)
- Wataru Norimatsu
- EcoTopia Science Institute, Nagoya University, Furo-cho, Chikusa-ku, Nagoya-shi, Aichi-ken, 464-8603, Japan
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Tanaka K, Inoue Y, Toiyama Y, Hiro J, Iwata T, Saigusa S, Ohi M, Miki C, Kageyama S, Kusunoki M. The role of cytoreduction for metastatic and recurrent colorectal cancer in the era of multidisciplinary treatments. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Iwata T, Tanaka K, Inoue Y, Toiyama Y, Hiro J, Saigusa S, Mohri Y, Miki C, Tabata T, Kusunoki M. Evaluation of macrophage inflammatory protein-3 alpha (MIP-3a) as a serum marker for prognosis of colorectal cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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40
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Yasuda H, Inoue M, Uchida K, Otake K, Koike Y, Fujikawa H, Miki C, Kusunoki M. Wandering spleen causing intestinal obstruction after repair of congenital diaphragmatic hernia. Eur J Pediatr Surg 2010; 20:121-3. [PMID: 19548195 DOI: 10.1055/s-0029-1220708] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- H Yasuda
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Tsu, Japan.
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Toiyama Y, Inoue Y, Saigusa S, Okugawa Y, Yokoe T, Tanaka K, Miki C, Kusunoki M. Gene expression profiles of epidermal growth factor receptor, vascular endothelial growth factor and hypoxia-inducible factor-1 with special reference to local responsiveness to neoadjuvant chemoradiotherapy and disease recurrence after rectal cancer surgery. Clin Oncol (R Coll Radiol) 2010; 22:272-80. [PMID: 20117921 DOI: 10.1016/j.clon.2010.01.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Revised: 12/14/2009] [Accepted: 12/15/2009] [Indexed: 12/16/2022]
Abstract
AIMS To establish a causal relationship between the gene expression profiles of angiogenetic molecular markers, including epidermal growth factor receptor (EGFR), vascular endothelial growth factor (VEGF) and hypoxia-inducible factor-1 (HIF-1), in rectal cancer and the local responsiveness to neoadjuvant chemoradiotherapy and subsequent disease recurrence. MATERIALS AND METHODS We examined the pre-treatment tumour biopsies (n=40) obtained from patients with rectal adenocarcinoma (clinical International Union Against Cancer stage ll/III) who were scheduled to receive neoadjuvant 5-fluorouracil-based chemoradiotherapy for EGFR, VEGF and HIF-1 expression by quantitative real-time polymerase chain reaction. RESULTS Responders (patients with significant tumour regression, i.e. pathological grades 2/3) showed significantly lower VEGF, HIF-1 and EGFR gene expression levels than the non-responders (patients with insignificant tumour regression, i.e. pathological grades 0/1) in the pre-treatment tumour biopsies. The elevated expression level of each gene could predict patients with a low response to chemoradiation. During the median follow-up of all patients (41 months; 95% confidence interval 28-60 months), 6/40 (15%) developed disease recurrence. Although local responsiveness to neoadjuvant chemoradiotherapy was associated with neither local nor systemic disease recurrence, lymph node metastasis and an elevated VEGF gene expression level were independent predictors of systemic disease recurrence. The 3-year disease-free survival rates of the patients with lower VEGF or EGFR expression levels were significantly lower than those of patients with higher VEGF or EGFR expression levels. CONCLUSIONS Analysing VEGF expression levels in rectal cancer may be of benefit in estimating the effects of neoadjuvant chemoradiotherapy and in predicting systemic recurrence after rectal cancer surgery.
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Affiliation(s)
- Y Toiyama
- Department of Gastrointestinal and Pediatric Surgery, Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Edobashi 2-174 Tsu, Mie 514-8507, Japan.
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Miyake K, Kusunoki M, Shindo T, Ueki N, Kawagoe T, Gudis K, Tatsuguchi A, Futagami S, Tsukui T, Sakamoto C. Duodenogastric reflux induced by endoscopic submucosal dissection. Endoscopy 2009; 41:934-40. [PMID: 19866392 DOI: 10.1055/s-0029-1215221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS Endoscopic submucosal dissection (ESD) may cause excessive duodenogastric reflux (DGR) in a similar manner to distal gastrectomy, particularly after antral resections. We aimed to examine the occurrence of DGR after ESD. PATIENTS AND METHODS Patients with gastric neoplasm for whom ESD was indicated were categorized according to lesion site: the antral group (lower [L] stomach, n = 46) and the nonantral group (upper or middle [U or M] stomach, n = 49). Endoscopy was performed before ESD, the day after ESD, and 3 months after ESD, and the fasting bile acid concentration (BAC) in the gastric juice was analyzed. RESULTS BAC values showed significant interaction between time point and group, although this association differed in the antral and nonantral groups. BACs on the day after ESD were higher in the antral group than in the nonantral group, but not the pre-ESD and 3 months post-ESD levels. In the antral group only, fasting BACs increased significantly the day after ESD and decreased to baseline levels 3 months post-ESD. There was also a correlation between BAC and lesion location in the antral subgroups, with significantly higher BACs found the day after ESD in patients with lesser curvature lesions. CONCLUSIONS ESD of lesions in the antral lesser curvature may lead to a transient early increase in DGR. However, ESD does not result in long-term DGR, a factor that is known to increase the risk of carcinogenesis following gastrectomy.
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Affiliation(s)
- K Miyake
- Department of Internal Medicine, Division of Gastroenterology, Nippon Medical School, Tokyo 113-8603, Japan.
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Mohri T, Mohri Y, Ward DG, Wei W, Qi Y, Martin A, Kusunoki M, Johnson PJ. Discovery of a tumor-specific biomarker for gastric cancer using proteomic analysis in tissue and serum. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e15582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15582 Background: Gastric cancer is curable at an early stage. However, most cases are diagnosed at an advanced stage because of the lack of screening programs. Therefore, for early detection, there is a need for serum biomarkers to be identified. Methods: We explored surface-enhanced laser desorption/ionization time-of-flight mass spectrometry to elucidate potential protein biomarkers of gastric cancer. Twenty-one resected gastric cancer samples were compared with matched adjacent normal mucosa samples. Serum from patients with gastric cancer (n=51) was compared with patients with benign gastric diseases (n=29). Samples were analyzed on Cu2+-loaded IMAC protein chips via surface-enhanced laser desorption /ionization time-of-flight mass spectrometry. Results: Comparisons of surface-enhanced laser desorption /ionization time-of-flight mass spectrometry spectra of 21 gastric cancer tissue extracts with paired adjacent normal mucosa showed a total of 56 differentially expressed protein peaks (p<0.05; Wilcoxon test). Twenty-two were up-regulated in gastric cancer tissue, whereas 34 were down-regulated. The surface- enhanced laser desorption /ionization time-of-flight mass spectrometry spectra of serum contained 130 peaks, of which 67 were significantly associated with gastric cancer (p<0.05; Wilcoxon test). We found five proteomic features (mass charge values of 2273, 3143, 3372, 3444, 3485) that were significantly up-regulated in both gastric cancer tissue and serum from gastric cancer patients. The peak intensities of tumor-specific proteomic features were used to develop a linear regression model for calculating a diagnostic index. The area under the receiver operating characteristic curve of the corresponding diagnostic index was 0.87. Conclusions: Serum biomarker panels associated with tumor tissue are capable of distinguishing gastric cancer patients from non-cancer ones. No significant financial relationships to disclose.
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Affiliation(s)
- T. Mohri
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
| | - Y. Mohri
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
| | - D. G. Ward
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
| | - W. Wei
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
| | - Y. Qi
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
| | - A. Martin
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
| | - M. Kusunoki
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
| | - P. J. Johnson
- Toyama Hospital, Tsu, Mie, Japan; Mie University Graduate School of Medicine, Tsu, Mie, Japan; University of Birmingham, Birmingham, United Kingdom; University of Birmingham, Birmingham, Japan
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Mohri Y, Kageyama S, Mohri T, Tanaka K, Ohi M, Yokoe T, Kusunoki M. Macrophage migration inhibitory factor and long-term survival in gastric cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e15525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15525 Background: Our study aimed to evaluate whether pretherapeutic serum macrophage migration inhibitory factor (MIF) is an independent factor predicting long-term survival in gastric cancer. Gastric cancer is the second leading cause of cancer-related deaths worldwide, but no satisfactory tumor marker exists. We recently found serum MIF expression was progressively increased in gastric cancer. Methods: One hundred five patients, 73 men and 32 women, mean (±SD) age 63±14 years, with histologically proven gastric adenocarcinoma were included in the study. Pretherapeutic serum was collected and MIF assayed using a commercially available enzyme-linked immunosorbent assay kit. Results: Ninety-three percent of patients received curative surgery. Mean follow up was 53.5±28.3 months, and five-year survival was 65.3 percent. The mean pretherapeutic level of MIF was 72.9ng/ml (range, 2.6 to 852.1). There were no significant correlations between serum MIF level and histopathological findings (Wilcoxon test). Mean pretherapeutic levels of carcinoembryonic antigen, C-reactive protein, and albumin were 27.5ng/ml (range, 0.1 to 778 ng/ml), 0.67mg/dl (range, 0.2 to 7.82mg/dl), and 3.6g/dl (range, 2.4 to 4.4g/dl), respectively. By multivariate analysis, serum MIF was found to be an independent factor predicting long-term survival (Odds ratio, 2.84; 95% C.I. 1.27–6.68). The five-year survival rate for patients with an MIF serum level greater than 23ng/ml was 55 percent, and that for patients with an MIF serum level less than 23ng/ml was 75 percent (p=0.03; log rank test). Conclusions: The serum level of MIF is a potentially valuable pretherapeutic prognostic factor in patients with gastric cancer. No significant financial relationships to disclose.
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Affiliation(s)
- Y. Mohri
- Mie University Graduate School of Medicine, Tsu, Mie, Japan; Toyama Hospital, Tsu, Mie, Japan
| | - S. Kageyama
- Mie University Graduate School of Medicine, Tsu, Mie, Japan; Toyama Hospital, Tsu, Mie, Japan
| | - T. Mohri
- Mie University Graduate School of Medicine, Tsu, Mie, Japan; Toyama Hospital, Tsu, Mie, Japan
| | - K. Tanaka
- Mie University Graduate School of Medicine, Tsu, Mie, Japan; Toyama Hospital, Tsu, Mie, Japan
| | - M. Ohi
- Mie University Graduate School of Medicine, Tsu, Mie, Japan; Toyama Hospital, Tsu, Mie, Japan
| | - T. Yokoe
- Mie University Graduate School of Medicine, Tsu, Mie, Japan; Toyama Hospital, Tsu, Mie, Japan
| | - M. Kusunoki
- Mie University Graduate School of Medicine, Tsu, Mie, Japan; Toyama Hospital, Tsu, Mie, Japan
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Inoue Y, Tanaka K, Saigusa S, Yokoe T, Yasuda H, Toiyama Y, Miki C, Yanagi H, Kusunoki M. Evaultion of CD133, VEGF, or EGFR as predictive markers of distant recurrence after preoperative chemoradiotherapy in rectal cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.4050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4050 Background: CD133 has been postulated to be a colon cancer stem cells (CSCs) marker. Recent investigations suggest that CSCs might contribute to cancer recurrence and resistance to conventional therapies. This study aimed to evaluate the role of CD133 in residual cancer cells after chemoradiotherapy (CRT) for rectal cancer. Methods: Forty patients with rectal cancer underwent CRT followed by surgery. Total RNAs of rectal cancer cells before (n=30) and after (n=40) CRT were isolated. Residual cancer cells after CRT were collected from formalin-fixed paraffin-embedded (FFPE) specimens using microdissection. Intratumoral CD133, vascular endothelial growth factor (VEGF), and epidermal growth factor receptor (EGFR) were measured using real-time reverse transcription polymerase chain reaction. Immunohistochemical staining of CD133 after CRT was also investigated. Results: CD133 in residual cancer cells was higher than in stromal cells on post-CRT specimens (p<0.0001). CD133 was increased in post-CRT specimens (p=0.0184), while VEGF and EGFR were decreased during CRT (p<0.0001 and p=0.0002, respectively). There were positive correlations between CD133 and VEGF (p=0.0392) or EGFR (p<0.0001) in pre-CRT specimens. Any correlations were not found in post-CRT specimens. Patients who developed distant recurrence had a higher post-CRT CD133 compared with those patients without recurrence (p=0.0136). Elevated post-CRT CD133 was associated with poor disease free survival (p=0.0168). Immunohistochemically, cytoplasmic and apical/endoluminal membranous CD133 staining was observed in residual cancer cells after CRT. Conclusions: CD133 in residual cancer cells after CRT may indicate a treatment resistant phenotype in putative CSCs. Elevated CD133 but not VEGF or EGFR on FFPE specimens may be a predictive marker of distant recurrence and poor survival after preoperative CRT in rectal cancer. No significant financial relationships to disclose.
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Affiliation(s)
- Y. Inoue
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - K. Tanaka
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - S. Saigusa
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - T. Yokoe
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - H. Yasuda
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - Y. Toiyama
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - C. Miki
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - H. Yanagi
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
| | - M. Kusunoki
- Division of Reparative Medicine, Institute of Life Sciences, Mie University Graduate School of Medicine, Tsu, Japan; Meiwa Hospital, Nishinomiya, Hyogo, Japan
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Tanaka K, Mohri Y, Nishioka J, Ohi M, Yokoe T, Miki C, Tonouchi H, Nobori T, Kusunoki M. Neurotrophic receptor, tropomyosin-related kinase B, as a chemoresistant marker in oesophageal cancer. Clin Oncol (R Coll Radiol) 2009; 21:362-3. [PMID: 19200696 DOI: 10.1016/j.clon.2009.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Accepted: 01/14/2009] [Indexed: 11/17/2022]
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Tanaka K, Mohri Y, Ohi M, Yokoe T, Koike Y, Morimoto Y, Miki C, Tonouchi H, Kusunoki M. Mitotic Checkpoint Genes, hsMAD2 and BubR1, in Oesophageal Squamous Cancer Cells and their Association with 5-fluorouracil and Cisplatin-based Radiochemotherapy. Clin Oncol (R Coll Radiol) 2008; 20:639-46. [DOI: 10.1016/j.clon.2008.06.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Revised: 06/16/2008] [Accepted: 06/24/2008] [Indexed: 01/30/2023]
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Yamamoto K, Miyake H, Kusunoki M, Osaki S. Structural insights into substrate specificity of isomaltase from Saccharomyces cerevisiae. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730809171x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Unno H, Ichimaida F, Suzuki H, Takahashi S, Tanaka Y, Saito A, Nishino T, Kusunoki M, Nakayama T. Structural and mutational studies of anthocyanin malonyltransferases. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308091320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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