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Tomita N, Kanatani Y, Nakagawa Y. Prescribing Pattern Of Drugs For Ulcerative Colitis In Japan. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A372. [PMID: 27200797 DOI: 10.1016/j.jval.2014.08.851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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77
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Nakagawa Y, Tomita N, Irisa K, Ito M, Nakagawa Y. Analysis of the Expenses for the Introduction of Electric Medical Record System in the National Hospital Organization. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A554. [PMID: 27201814 DOI: 10.1016/j.jval.2014.08.1816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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78
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Yoshida M, Ishiguro M, Ikejiri K, Mochizuki I, Nakamoto Y, Kinugasa Y, Takagane A, Endo T, Shinozaki H, Takii Y, Mochizuki H, Kotake K, Kameoka S, Takahashi K, Watanabe T, Watanabe M, Boku N, Tomita N, Nakatani E, Sugihara K. S-1 as adjuvant chemotherapy for stage III colon cancer: a randomized phase III study (ACTS-CC trial). Ann Oncol 2014; 25:1743-1749. [PMID: 24942277 PMCID: PMC4143094 DOI: 10.1093/annonc/mdu232] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 06/09/2014] [Accepted: 06/11/2014] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND S-1 is an oral fluoropyrimidine whose antitumor effects have been demonstrated in treating various gastrointestinal cancers, including metastatic colon cancer, when administered as monotherapy or in combination chemotherapy. We conducted a randomized phase III study investigating the efficacy of S-1 as adjuvant chemotherapy for colon cancer by evaluating its noninferiority to tegafur-uracil plus leucovorin (UFT/LV). PATIENTS AND METHODS Patients aged 20-80 years with curatively resected stage III colon cancer were randomly assigned to receive S-1 (80-120 mg/day on days 1-28 every 42 days; four courses) or UFT/LV (UFT: 300-600 mg/day and LV: 75 mg/day on days 1-28 every 35 days; five courses). The primary end point was disease-free survival (DFS) at 3 years. RESULTS A total of 1518 patients (758 and 760 in the S-1 and UFT/LV group, respectively) were included in the full analysis set. The 3-year DFS rate was 75.5% and 72.5% in the S-1 and UFT/LV group, respectively. The stratified hazard ratio for DFS in the S-1 group compared with the UFT/LV group was 0.85 (95% confidence interval: 0.70-1.03), demonstrating the noninferiority of S-1 (noninferiority stratified log-rank test, P < 0.001). In the subgroup analysis, no significant interactions were identified between the major baseline characteristics and the treatment groups. CONCLUSION Adjuvant chemotherapy using S-1 for stage III colon cancer was confirmed to be noninferior in DFS compared with UFT/LV. S-1 could be a new treatment option as adjuvant chemotherapy for colon cancer. CLINICALTRIALSGOV NCT00660894.
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Nomura M, Abe T, Kodaira T, Oze I, Komori A, Narita Y, Masuishi T, Taniguchi H, Kadowaki S, Takahari D, Ura T, Andoh M, Kawai R, Uemura N, Tomita N, Tachibana H, Tanaka T, Tajika M, Niwa Y, Muro K. Comparison of Surgery with Definitive Chemoradiotherapy for Potentially Resectable Esophageal Cancer: a Propensity-Score Analysis. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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80
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Shimizu A, Takehana K, Makita C, Tomita N, Tachibana H, Kodaira T. Correlation of the Incidence of Hypothyroidism and the Dose-Volume Histogram in Head and Neck Cancer Patients Treated With Intensity Modulated Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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81
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Kondo E, Yamamoto K, Masunari T, Miura K, Takizawa J, Masaki Y, Matsumura T, Hiramatsu Y, Murakami J, Tsujimura H, Tomita N, Maeda Y, Kanno M. Interim Analysis of an Ongoing Phase Ii Trial Assessing Safety and Efficacy of R-Idea As Salvage Therapy in Patients with Relapsed/Refractory Dlbcl: an Intergroup Study of the Society of Lymphoma Treatment in Japan (Solt-J) and the West Japan Hematology/Oncology Group (Westjhog). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu339.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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82
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Takehana K, Shimizu A, Makita C, Tomita N, Tachibana H, Kodaira T. Retrospective Analysis of Clinical Efficacy of IMRT Using Helical Tomotherapy Among Patients Treated With Definitive Chemoradiation Therapy for Hypopharyngeal Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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83
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Ishiguro M, Nakatani E, Kotake K, Nishimura G, Tomita N, Ichikawa W, Takahashi K, Watanabe T, Furuhata T, Kondo K, Mori M, Kakeji Y, Kanazawa A, Kobayashi M, Okajima M, Hyodo I, Tanaka S, Sugihara K. Tumor Location and Histological Type Related to Intratumoral Expression of 5-Fu Metabolizing Enzymes in Stage III Colon Cancer: a Multicenter, Prospective Cohort Study [B-Cast Study]. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.70] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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84
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Miyashita A, Wen Y, Kitamura N, Matsubara E, Kawarabayashi T, Shoji M, Tomita N, Furukawa K, Arai H, Asada T, Harigaya Y, Ikeda M, Amari M, Hanyu H, Higuchi S, Nishizawa M, Suga M, Kawase Y, Akatsu H, Imagawa M, Hamaguchi T, Yamada M, Morihara T, Takeda M, Takao T, Nakata K, Sasaki K, Watanabe K, Nakashima K, Urakami K, Ooya T, Takahashi M, Yuzuriha T, Serikawa K, Yoshimoto S, Nakagawa R, Saito Y, Hatsuta H, Murayama S, Kakita A, Takahashi H, Yamaguchi H, Akazawa K, Kanazawa I, Ihara Y, Ikeuchi T, Kuwano R. Lack of Genetic Association Between TREM2 and Late-Onset Alzheimer's Disease in a Japanese Population. ACTA ACUST UNITED AC 2014; 41:1031-8. [DOI: 10.3233/jad-140225] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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85
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Okamura N, Harada R, Furumoto S, Furukawa K, Ishiki A, Tomita N, Tashiro M, Iwata R, Yanai K, Arai H, Kudo Y. IC‐P‐215: COMPARISON OF 18F‐THK5117 AND 11C‐PIB PET IMAGES IN PATIENTS WITH ALZHEIMER'S DISEASE. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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86
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Nakajima Y, Hattori Y, Ito S, Ohshima R, Kuwabara H, Machida S, Shirasugi Y, Miyazaki K, Sakai R, Tomita N, Ando K, Higashihara M, Ishigatsubo Y, Fujisawa S. Acute leukemia during pregnancy: an investigative survey of the past 11 years. Int J Lab Hematol 2014; 37:174-80. [DOI: 10.1111/ijlh.12256] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 04/13/2014] [Indexed: 12/21/2022]
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87
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Takahashi Y, Takesue Y, Uchino M, Ikeuchi H, Tomita N, Hirano T, Fujimoto J. Value of pre- and postoperative meticillin-resistant Staphylococcus aureus screening in patients undergoing gastroenterological surgery. J Hosp Infect 2014; 87:92-7. [PMID: 24836292 DOI: 10.1016/j.jhin.2014.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 03/04/2014] [Indexed: 01/02/2023]
Abstract
BACKGROUND Data supporting active surveillance of meticillin-resistant Staphylococcus aureus (MRSA) for the prevention of postoperative infection remain controversial. AIM To investigate the efficacy of MRSA screening in patients undergoing gastroenterological surgery. METHOD Nasal carriage of MRSA was screened using a polymerase chain reaction (PCR) assay on two gastroenterological surgery wards (A and B). Occurrence of postoperative MRSA infection was analysed according to nasal MRSA carriage status (pre-operative carriage and postoperative acquisition). FINDINGS The incidence of pre-operative MRSA carriage was 9.7% on Ward A and 4.3% on Ward B (P = 0.009). Postoperative nasal MRSA acquisition was confirmed in 16.2% and 6.0% of patients, respectively (P < 0.001). There was no significant difference in the incidence of MRSA surgical site infections (SSIs) between patients with and without pre-operative nasal colonization on either ward. On Ward A, where MRSA nasal acquisition was more common, the MRSA infection rate in patients with postoperative nasal acquisition was 26.8%, which was significantly higher than the rates in patients with pre-operative MRSA colonization and patients without colonization during hospitalization. Postoperative nasal MRSA acquisition was an independent factor associated with MRSA infection on both wards [Ward A: odds ratio (OR) 7.192, 95% confidence interval (CI) 2.981-17.352; Ward B: OR 5.761, 95% CI 1.429-23.220]. CONCLUSION MRSA SSIs were prevented by a screening-based strategy in pre-operative MRSA carriers. Postoperative nasal acquisition was a significant factor affecting MRSA infection, and the effect of screening varied according to the incidence of postoperative MRSA acquisition on the ward.
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Furukawa K, Kamada M, Ishiki A, Tomita N, Arai H. [Clinical diagnosis]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 2014; 72:667-672. [PMID: 24796095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The commonly followed definition of dementia is the one described by the International Statistical Classification of Diseases, 10th Revision (ICD-10, World Health Organization) or the Diagnostic and Statistical Manual of Mental Disorders (DSM-V, American Psychiatric Association). The most important aspect in the diagnosis of dementia is the assessment of overall mental and functions, including living environment, activities of daily living, cognition, mental status, and behavior. Physicians should diagnose dementia on the basis of not only cognitive test results or radiological findings but also other available information, including that obtained from the families or caregivers. Tests for the quantitative evaluation of cognitive function and dementia include the Mini-Mental State Examination (MMSE), Hasegawa Dementia Scale Revised (HDS-R), Clinical Dementia Rating (CDR), and Wechsler Memory Scale-Revised (WMS-R).
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Takagi K, Tomita N, Asaka K. A simple method for obtaining large deformation of IPMC actuators utilizing copper tape. Adv Robot 2014. [DOI: 10.1080/01691864.2013.876939] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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90
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Furukawa K, Ishiki A, Tomita N, Arai H. [Diagnosis and treatment of dementia: overview]. Rinsho Shinkeigaku 2014; 54:1171-1173. [PMID: 25672736 DOI: 10.5692/clinicalneurol.54.1171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The development of accurate diagnostic tests and treatment of dementia must be important issues in an aging society. The quality of biomarkers for dementia have dramatically improved recently and are classified into two categories, including (i) biochemical markers in biofluids and (ii) imaging using radiological technologies. Positron emission tomography (PET) to detect amyloid β was first developed in 2004 (1)). Since then, several amyloid PET tracers to detect senile plaques in patients with Alzheimer's disease (AD) have been published by many investigators, including our group (2)). Some laboratories recently developed PET tracers to detect tau pathologies in patients with AD (3)). Moreover, four drugs (donepezil, galantamine, rivastigmine, and memantin), which modulate neurotransmission in the brains of patients with AD are now used to treat AD; however, none of them can cure the disease. Although several anti-amyloid β compounds have been examined in clinical trials as potentially useful drugs, all of them have failed to show significant benefits so far. In contrast, tau-targeted drugs have been developed and have entered clinical trials. We expect strongly a therapeutic drug for dementia to be released in the near future.
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91
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Mizutani Y, Tomita N, Niizuma Y, Yoda K. Environmental perturbations influence telomere dynamics in long-lived birds in their natural habitat. Biol Lett 2013; 9:20130511. [PMID: 23945210 DOI: 10.1098/rsbl.2013.0511] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Telomeres are regarded as markers of biological or cellular ageing because they shorten with the degree of stress exposure. Accordingly, telomere lengths should show different rates of change when animals are faced with different intensities of environmental challenges. However, a relationship between telomere length and the environment has not yet been tested within a natural setting. Here, we report longitudinal telomere dynamics in free-living, black-tailed gulls (Larus crassirostris) through the recapture of birds of a known age over 2-5 consecutive years. The rate of change in telomere lengths differed with respect to year but not sex or age. The years when gulls showed stable telomere lengths or increases in telomere lengths (from 2009 to 2010) and decreases in telomere lengths (from 2010 to 2011) were characterized by El Niño and the Great Japan Earthquake, respectively. Both events are suspected to have had long-lasting effects on food availability and/or weather conditions. Thus, our findings that telomere dynamics in long-lived birds are influenced by dramatic changes in environmental conditions highlight the importance of environmental fluctuations in affecting stress and lifespan.
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Kushida T, Nohara S, Yoshino K, Fujiwara D, Ouchi K, Amano T, Isayama F, Tomita N, Iwanuma Y, Sasai K, Tsurumaru M, Kajiyama Y. Utility of weekly docetaxel combined with preoperative radiotherapy for locally advanced esophageal cancer from pathological analysis. Dis Esophagus 2013; 27:368-73. [PMID: 23865505 DOI: 10.1111/dote.12105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Esophageal squamous cell cancer (ESCC) is a high-grade carcinoma that is treated with multidisciplinary approaches, including chemoradiotherapy (CRT) followed by surgery. Despite some success with these therapies, overall survival remains poor. In order to investigate a newer CRT regimen, we designed a comparative study to evaluate preoperative CRT using docetaxel (DOC) or 5-Fluorouracil and cisplatin (FU+CDDP [FP] therapy) for treatment of resectable ESCC. In a retrospective review of patients with resectable, locally advanced ESCC, 95 patients received preoperative CRT between 2001 and 2007. CRT was administered using either FP (n = 40) or DOC (n = 55). Pathological response and clinical outcomes were compared between the two groups. Hazard ratios and time-to-event analyses were used to assess outcomes; the ratios were controlled by multivariate logistic regression analysis of potential prognostic factors, and survival was presented with Kaplan-Meier curves. In the FP group, a significant curative effect was observed on the basis of pathological examination of postoperative lesions. However, the DOC group presented a significantly better prognosis on the basis of cumulative survival rates. Logistic regression analysis revealed that the presence of five or more lymph node metastases was an independent predictor of reduced survival. Patients with lymph node metastasis exhibited a better prognosis in the DOC group than those in the FP group. Preoperative CRT for locally advanced esophageal cancer using DOC results in similar or better long-term outcomes compared with FP-based CRT. Therefore, CRT using DOC is a promising therapy option for esophageal cancer.
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93
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Furukawa K, Takao M, Tomita N, Okamura N, Murayama S, Arai H. P2–210: The first autopsy report from J‐ADNI. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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94
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Miyashita A, Koike A, Jun G, Wang LS, Takahashi S, Matsubara E, Kawarabayashi T, Shoji M, Tomita N, Arai H, Asada T, Harigaya Y, Ikeda M, Amari M, Hanyu H, Higuchi S, Ikeuchi T, Nishizawa M, Suga M, Kawase Y, Akatsu H, Kosaka K, Yamamoto T, Imagawa M, Hamaguchi T, Yamada M, Moriaha T, Takeda M, Takao T, Nakata K, Fujisawa Y, Sasaki K, Watanabe K, Nakashima K, Urakami K, Ooya T, Takahashi M, Yuzuriha T, Serikawa K, Yoshimoto S, Nakagawa R, Kim JW, Ki CS, Won HH, Na DL, Seo SW, Mook-Jung I, St. George-Hyslop P, Mayeux R, Haines JL, Pericak-Vance MA, Yoshida M, Nishida N, Tokunaga K, Yamamoto K, Tsuji S, Kanazawa I, Ihara Y, Schellenberg GD, Farrer LA, Kuwano R. SORL1 is genetically associated with late-onset Alzheimer's disease in Japanese, Koreans and Caucasians. PLoS One 2013; 8:e58618. [PMID: 23565137 PMCID: PMC3614978 DOI: 10.1371/journal.pone.0058618] [Citation(s) in RCA: 181] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 02/05/2013] [Indexed: 11/18/2022] Open
Abstract
To discover susceptibility genes of late-onset Alzheimer's disease (LOAD), we conducted a 3-stage genome-wide association study (GWAS) using three populations: Japanese from the Japanese Genetic Consortium for Alzheimer Disease (JGSCAD), Koreans, and Caucasians from the Alzheimer Disease Genetic Consortium (ADGC). In Stage 1, we evaluated data for 5,877,918 genotyped and imputed SNPs in Japanese cases (n = 1,008) and controls (n = 1,016). Genome-wide significance was observed with 12 SNPs in the APOE region. Seven SNPs from other distinct regions with p-values <2×10(-5) were genotyped in a second Japanese sample (885 cases, 985 controls), and evidence of association was confirmed for one SORL1 SNP (rs3781834, P = 7.33×10(-7) in the combined sample). Subsequent analysis combining results for several SORL1 SNPs in the Japanese, Korean (339 cases, 1,129 controls) and Caucasians (11,840 AD cases, 10,931 controls) revealed genome wide significance with rs11218343 (P = 1.77×10(-9)) and rs3781834 (P = 1.04×10(-8)). SNPs in previously established AD loci in Caucasians showed strong evidence of association in Japanese including rs3851179 near PICALM (P = 1.71×10(-5)) and rs744373 near BIN1 (P = 1.39×10(-4)). The associated allele for each of these SNPs was the same as in Caucasians. These data demonstrate for the first time genome-wide significance of LOAD with SORL1 and confirm the role of other known loci for LOAD in Japanese. Our study highlights the importance of examining associations in multiple ethnic populations.
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Bladen CL, Teramura S, Russell SL, Fujiwara K, Fisher J, Ingham E, Tomita N, Tipper JL. Analysis of wear, wear particles, and reduced inflammatory potential of vitamin E ultrahigh-molecular-weight polyethylene for use in total joint replacement. J Biomed Mater Res B Appl Biomater 2013; 101:458-66. [PMID: 23436622 PMCID: PMC3798093 DOI: 10.1002/jbm.b.32904] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 11/27/2012] [Accepted: 01/10/2013] [Indexed: 11/12/2022]
Abstract
Vitamin E (VE) has been added to ultrahigh-molecular-weight polyethylene (UHMWPE) acetabular cups and tibial trays primarily to reduce oxidative damage to the polymer. The aim of this study was to investigate the relative wear rates of UHMWPE-containing VE compared with virgin UHMWPE. The ability of VE to reduce the amount of inflammatory cytokines produced from stimulated peripheral blood mononuclear cells (PBMNCs) was also investigated. Stimulation was achieved by exposure of PBMNCs to either lipoplysaccharide (LPS) or VE-containing UHMWPE (VE-UHMWPE). In the present study, results showed that the wear rates of UHMWPE with or without VE were not significantly different. Particles generated by UHMWPE with and without VE were not significantly different in size distribution. The production of osteolytic mediators, tumor necrosis factor-alpha, interleukin 1β (IL-β), IL-6, and IL-8 were significantly reduced in (PBMNCs) stimulated with either LPS + VE compared with LPS or VE-UHMWPE particles compared to virgin UHMWPE particles. This trend was also observed when VE was added as a liquid to UHMWPE wear particle-stimulated PBMNCs. The exact mechanism of how VE affects the release of inflammatory mediators from particle-stimulated macrophages is not yet understood. It is likely to involve the anti-inflammatory and/or antioxidant effects of VE.
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Tomita N, Hayashi Y, Suzuki S, Oomori Y, Aramaki Y, Matsushita Y, Iwatani M, Iwata H, Okabe A, Awazu Y, Isono O, Skene RJ, Hosfield DJ, Miki H, Kawamoto T, Hori A, Baba A. Structure-based discovery of cellular-active allosteric inhibitors of FAK. Bioorg Med Chem Lett 2013; 23:1779-85. [PMID: 23414845 DOI: 10.1016/j.bmcl.2013.01.047] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2012] [Revised: 01/08/2013] [Accepted: 01/15/2013] [Indexed: 11/25/2022]
Abstract
In order to develop potent and selective focal adhesion kinase (FAK) inhibitors, synthetic studies on pyrazolo[4,3-c][2,1]benzothiazines targeted for the FAK allosteric site were carried out. Based on the X-ray structural analysis of the co-crystal of the lead compound, 8-(4-ethylphenyl)-5-methyl-1,5-dihydropyrazolo[4,3-c][2,1]benzothiazine 4,4-dioxide 1 with FAK, we designed and prepared 1,5-dimethyl-1,5-dihydropyrazolo[4,3-c][2,1]benzothiazin derivatives which selectively inhibited kinase activity of FAK without affecting seven other kinases. The optimized compound, N-(4-tert-butylbenzyl)-1,5-dimethyl-1,5-dihydropyrazolo[4,3-c][2,1]benzothiazin-8-amine 4,4-dioxide 30 possessed significant FAK kinase inhibitory activities both in cell-free (IC50=0.64μM) and in cellular assays (IC50=7.1μM). These results clearly demonstrated a potential of FAK allosteric inhibitors as antitumor agents.
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Uwano C, Suzuki M, Aikawa T, Ebihara T, Une K, Tomita N, Kosaka Y, Okinaga S, Furukawa K, Arai H, Ohrui T. Rivastigmine dermal patch solves eating problems in an individual with advanced Alzheimer's disease. J Am Geriatr Soc 2012; 60:1979-80. [PMID: 23057453 DOI: 10.1111/j.1532-5415.2012.04182.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tomita N, Une K, Ohrui T, Ebihara T, Kosaka Y, Okinaga S, Furukawa K, Arai H. Functional decline after an emergency shelter stay: misleading evidence. J Am Geriatr Soc 2012; 60:2380-2. [PMID: 23231567 DOI: 10.1111/jgs.12021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hashimoto M, Tanaka F, Yoneda K, Kondo N, Takuwa T, Matsumoto S, Kuroda A, Noda M, Tomita N, Hasegawa S. Circulating tumor cells as a potential biomarker in selecting patients for pulmonary metastasectomy from colorectal cancer: report of a case. Case Rep Oncol 2012; 5:542-5. [PMID: 23139669 PMCID: PMC3492968 DOI: 10.1159/000343677] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Pulmonary metastasectomy is indicated for selected patients with metastatic colorectal cancer. A 43-year-old woman presented with solitary pulmonary metastasis from descending colon cancer and pulmonary metastasectomy was performed because of absence of any other active metastasis as well as normal serum carcinoembryonic antigen value. However, she died due to early development of nodal and bone metastases within 6 months after thoracotomy. The presence of circulating tumor cells (CTCs) in the peripheral blood (6 CTCs/7.5 ml) was the only factor to predict such a poor prognosis, suggesting that the CTC test is useful in selecting patients for pulmonary metastasectomy.
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Kitazume S, Yoshihisa A, Yamaki T, Oikawa M, Tachida Y, Ogawa K, Imamaki R, Hagiwara Y, Kinoshita N, Takeishi Y, Furukawa K, Tomita N, Arai H, Iwata N, Saido T, Yamamoto N, Taniguchi N. Soluble amyloid precursor protein 770 is released from inflamed endothelial cells and activated platelets: a novel biomarker for acute coronary syndrome. J Biol Chem 2012; 287:40817-25. [PMID: 23033480 DOI: 10.1074/jbc.m112.398578] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Separate monitoring of the cleavage products of different amyloid β precursor protein (APP) variants may provide useful information. RESULTS We found that soluble APP770 (sAPP770) is released from inflamed endothelial cells and activated platelets as judged by ELISA. CONCLUSION sAPP770 is an indicator for endothelial and platelet dysfunctions. SIGNIFICANCE How sAPP770 is released in vivo has been shown. Most Alzheimer disease (AD) patients show deposition of amyloid β (Aβ) peptide in blood vessels as well as the brain parenchyma. We previously found that vascular endothelial cells express amyloid β precursor protein (APP) 770, a different APP isoform from neuronal APP695, and produce Aβ. Since the soluble APP cleavage product, sAPP, is considered to be a possible marker for AD diagnosis, sAPP has been widely measured as a mixture of these variants. We hypothesized that measurement of the endothelial APP770 cleavage product in patients separately from that of neuronal APP695 would enable discrimination between endothelial and neurological dysfunctions. Using our newly developed ELISA system for sAPP770, we observed that inflammatory cytokines significantly enhanced sAPP770 secretion by endothelial cells. Furthermore, we unexpectedly found that sAPP770 was rapidly released from activated platelets. We also found that cerebrospinal fluid mainly contained sAPP695, while serum mostly contained sAPP770. Finally, to test our hypothesis that sAPP770 could be an indicator for endothelial dysfunction, we applied our APP770 ELISA to patients with acute coronary syndrome (ACS), in which endothelial injury and platelet activation lead to fibrous plaque disruption and thrombus formation. Development of a biomarker is essential to facilitate ACS diagnosis in clinical practice. The results revealed that ACS patients had significantly higher plasma sAPP770 levels. Furthermore, in myocardial infarction model rats, an increase in plasma sAPP preceded the release of cardiac enzymes, currently used markers for acute myocardial infarction. These findings raise the possibility that sAPP770 can be a useful biomarker for ACS.
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