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Yamada K, Takata T, Anoushiravani A, Campos L, Graham T, Kotoku J, Farsad K. Abstract No. 53 Image Quality Improvement for Digital Subtraction Angiography (DSA) around High-Density Obstacles Using Deep Learning: A Bench-Top Study. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.096] [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: 02/27/2023] Open
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Milling TJ, Middeldorp S, Xu L, Koch B, Demchuk A, Eikelboom JW, Verhamme P, Cohen AT, Beyer-Westendorf J, Michael Gibson C, Lopez-Sendon J, Crowther M, Shoamanesh A, Coppens M, Schmidt J, Albaladejo P, Connolly SJ, Bastani A, Clark C, Concha M, Cornell J, Dombrowski K, Fermann G, Fulmer J, Goldstein J, Kereiakes D, Milling T, Pallin D, Patel N, Refaai M, Rehman M, Schmaier A, Schwarz E, Shillinglaw W, Spohn M, Takata T, Venkat A, Welker J, Welsby I, Wilson J, Van Keer L, Verschuren F, Blostein M, Eikelboom J, Althaus K, Berrouschot J, Braun G, Doeppner T, Dziewas R, Genth-Zotz S, Greinacher P, Hamann F, Hanses F, Heide W, Kallmuenzer B, Kermer P, Poli S, Royl G, Schellong S, Schnupp S, Schwarze J, Spies C, Thomalla G, von Mering M, Weissenborn K, Wollenweber F, Gumbinger C, Jaschinski U, Maschke M, Mochmann HC, Pfeilschifter W, Pohlmann C, Zahn R, Bouzat P, Schmidt J, Vallejo C, Floccard B, Coppens M, van Wissen S, Arellano-Rodrigo E, Valles E, Alikhan R, Breen K, Hall R, Crowther M, Albaladejo P, Cohen A, Demchuk A, Schmidt J, Wyse D, Garcia D, Prins M, Nakamya J, Büller H, Mahaffey KW, Alexander JH, Cairns J, Hart R, Joyner C, Raskob G, Schulman S, Veltkamp R, Meeks B, Zotova E, Ahmad S, Pinto T, Baker K, Dykstra A, Holadyk-Gris I, Malvaso A, Demchuk A. Final Study Report of Andexanet Alfa for Major Bleeding With Factor Xa Inhibitors. Circulation 2023; 147:1026-1038. [PMID: 36802876 DOI: 10.1161/circulationaha.121.057844] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [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] [Indexed: 02/22/2023]
Abstract
BACKGROUND Andexanet alfa is a modified recombinant inactive factor Xa (FXa) designed to reverse FXa inhibitors. ANNEXA-4 (Andexanet Alfa, a Novel Antidote to the Anticoagulation Effects of Factor Xa Inhibitors) was a multicenter, prospective, phase-3b/4, single-group cohort study that evaluated andexanet alfa in patients with acute major bleeding. The results of the final analyses are presented. METHODS Patients with acute major bleeding within 18 hours of FXa inhibitor administration were enrolled. Co-primary end points were anti-FXa activity change from baseline during andexanet alfa treatment and excellent or good hemostatic efficacy, defined by a scale used in previous reversal studies, at 12 hours. The efficacy population included patients with baseline anti-FXa activity levels above predefined thresholds (≥75 ng/mL for apixaban and rivaroxaban, ≥40 ng/mL for edoxaban, and ≥0.25 IU/mL for enoxaparin; reported in the same units used for calibrators) who were adjudicated as meeting major bleeding criteria (modified International Society of Thrombosis and Haemostasis definition). The safety population included all patients. Major bleeding criteria, hemostatic efficacy, thrombotic events (stratified by occurring before or after restart of either prophylactic [ie, a lower dose, for prevention rather than treatment] or full-dose oral anticoagulation), and deaths were assessed by an independent adjudication committee. Median endogenous thrombin potential at baseline and across the follow-up period was a secondary outcome. RESULTS There were 479 patients enrolled (mean age, 78 years; 54% male, 86% White; 81% anticoagulated for atrial fibrillation at a median time of 11.4 hours since last dose, with 245 (51%) on apixaban, 176 (37%) on rivaroxaban, 36 (8%) on edoxaban, and 22 (5%) on enoxaparin. Bleeding was predominantly intracranial (n=331 [69%]) or gastrointestinal (n=109 [23%]). In evaluable apixaban patients (n=172), median anti-FXa activity decreased from 146.9 ng/mL to 10.0 ng/mL (reduction, 93% [95% CI, 94-93]); in rivaroxaban patients (n=132), it decreased from 214.6 ng/mL to 10.8 ng/mL (94% [95% CI, 95-93]); in edoxaban patients (n=28), it decreased from 121.1 ng/mL to 24.4 ng/mL (71% [95% CI, 82-65); and in enoxaparin patients (n=17), it decreased from 0.48 IU/mL to 0.11 IU/mL (75% [95% CI, 79-67]). Excellent or good hemostasis occurred in 274 of 342 evaluable patients (80% [95% CI, 75-84]). In the safety population, thrombotic events occurred in 50 patients (10%); in 16 patients, this occurred during treatment with prophylactic anticoagulation that began after the bleeding event. No thrombotic episodes occurred after oral anticoagulation restart. Specific to certain populations, reduction of anti-FXa activity from baseline to nadir significantly predicted hemostatic efficacy in patients with intracranial hemorrhage (area under the receiver operating characteristic curve, 0.62 [95% CI, 0.54-0.70]) and correlated with lower mortality in patients <75 years of age (adjusted P=0.022; unadjusted P=0.003). Median endogenous thrombin potential was within the normal range by the end of andexanet alfa bolus through 24 hours for all FXa inhibitors. CONCLUSIONS In patients with major bleeding associated with the use of FXa inhibitors, treatment with andexanet alfa reduced anti-FXa activity and was associated with good or excellent hemostatic efficacy in 80% of patients. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT02329327.
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Affiliation(s)
- Truman J Milling
- Seton Dell Medical School Stroke Institute, Dell Medical School, University of Texas at Austin (T.J.M.)
| | - Saskia Middeldorp
- Department of Internal Medicine and Radboud Institute of Health Sciences, Nijmegenthe Netherlands (S.M.)
| | - Lizhen Xu
- Population Health Research Institute, McMaster University, HamiltonOntario Canada. (L.X., A.S., S.J.C.)
| | - Bruce Koch
- Alexion, AstraZeneca Rare Disease, BostonMA (B.K.)
| | - Andrew Demchuk
- Departments of Clinical Neurosciences and Radiology, Cumming School of Medicine, University of Calgary, AlbertaCanada (A.D.)
| | - John W Eikelboom
- Department of Medicine, McMaster University, HamiltonOntario Canada. (J.W.E., M. Crowther)
| | - Peter Verhamme
- Center for Molecular and Vascular Biology, University of Leuven, Belgium (P.V.)
| | | | - Jan Beyer-Westendorf
- Department of Medicine I, Division of Hematology and Hemostasis, University Hospital Dresden, Germany (J.B-W.)
| | | | - Jose Lopez-Sendon
- Instituto de Investigación Hospital Universitario, La PazMadridSpain (J. L-S.)
| | - Mark Crowther
- Department of Medicine, McMaster University, HamiltonOntario Canada. (J.W.E., M. Crowther)
| | - Ashkan Shoamanesh
- Population Health Research Institute, McMaster University, HamiltonOntario Canada. (L.X., A.S., S.J.C.)
| | - Michiel Coppens
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, University of Amsterdam, the Netherlands (M. Coppens)
| | - Jeannot Schmidt
- Centre Hospitalier Universitaire de Clermont-Ferrand, France (J.S.)
| | | | - Stuart J Connolly
- Population Health Research Institute, McMaster University, HamiltonOntario Canada. (L.X., A.S., S.J.C.)
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Simper MS, Coletta LD, Gaddis S, Lin K, Mikulec CD, Takata T, Tomida MW, Zhang D, Tang DG, Estecio MR, Shen J, Lu Y. Commercial ChIP-Seq Library Preparation Kits Performed Differently for Different Classes of Protein Targets. J Biomol Tech 2022; 33:3fc1f5fe.7910785e. [PMID: 36910579 PMCID: PMC10001930 DOI: 10.7171/3fc1f5fe.7910785e] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background Chromatin immunoprecipitation followed by high-throughput sequencing (ChIP-Seq) is a powerful method commonly used to study global protein-DNA interactions including both transcription factors and histone modifications. We have found that the choice of ChIP-Seq library preparation protocol plays an important role in overall ChIP-Seq data quality. However, very few studies have compared ChIP-Seq libraries prepared by different protocols using multiple targets and a broad range of input DNA levels. Results In this study, we evaluated the performance of 4 ChIP-Seq library preparation protocols (New England Biolabs [NEB] NEBNext Ultra II, Roche KAPA HyperPrep, Diagenode MicroPlex, and Bioo [now PerkinElmer] NEXTflex) on 3 target proteins, chosen to represent the 3 typical signal enrichment patterns in ChIP-Seq experiments: sharp peaks (H3K4me3), broad domains (H3K27me3), and punctate peaks with a protein binding motif (CTCF). We also tested a broad range of different input DNA levels from 0.10 to 10 ng for H3K4me3 and H3K27me3 experiments. Conclusions Our results suggest that the NEB protocol may be better for preparing H3K4me3 (and potentially other histone modifications with sharp peak enrichment) libraries; the Bioo protocol may be better for preparing H3K27me3 (and potentially other histone modifications with broad domain enrichment) libraries, and the Diagenode protocol may be better for preparing CTCF (and potentially other transcription factors with well-defined binding motifs) libraries. For ChIP-Seq experiments using novel targets without a known signal enrichment pattern, the NEB protocol might be the best choice, as it performed well for each of the 3 targets we tested across a wide array of input DNA levels.
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Affiliation(s)
- M S Simper
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - L Della Coletta
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - S Gaddis
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - K Lin
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - C D Mikulec
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - True Takata
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - M W Tomida
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - D Zhang
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA.,Present Address: College of Biology Hunan University Changsha410082 China
| | - D G Tang
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA.,Present Address: Department of Pharmacology and Therapeutics Roswell Park Cancer Institute BuffaloNew York14263 USA
| | - M R Estecio
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
| | - J Shen
- Department of Epigenetics and Molecular Carcinogenesis.,Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA.,Program in Genetics and Epigenetics MD Anderson Cancer Center UT Health Graduate School of Biomedical Sciences The University of Texas MD Anderson Cancer Center SmithvilleTexas78957 USA
| | - Yue Lu
- Department of Epigenetics and Molecular Carcinogenesis The University of Texas MD Anderson Cancer Center Science ParkSmithvilleTexas78957 USA
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Shimojima Y, Kishida D, Ichikawa T, Kida T, Yajima N, Omura S, Nakagomi D, Abe Y, Masatoshi K, Takizawa N, Nomura A, Kukida Y, Kondo N, Yasuhiko Y, Yanagida T, Endo K, Hirata S, Kawahata K, Matsui K, Takeuchi T, Ichinose K, Kato M, Yanai R, Matsuo Y, Yamasaki A, Nishioka R, Takata T, Moriyama M, Takatani A, Ito T, Miyawaki Y, Ito-Ihara T, Kawaguchi T, Kawahito Y, Sekijima Y. POS0822 HYPERTROPHIC PACHYMENINGITIS IN ANTINEUTROPHIL CYTOPLASMIC ANTIBODY-ASSOCIATED VASCULITIS: A MULTICENTER SURVEY IN JAPAN. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundHypertrophic pachymeningitis (HP), characterized by an inflammatory disorder indicating intracranial or spinal thickening of dura mater, is found to develop as a neurological involvement in antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). Meanwhile, the previous studies focusing on HP in AAV have been reported as a single-institution study, and the analyses were performed in a small number of patients because HP is a rare neurological disorder. Therefore, neither etiological nor clinical characteristics of HP in AAV have been adequately elucidated.ObjectivesThis study clarified the characteristics of HP in AAV by analyzing the information of multicenter study in Japan (Japan collaborative registry of ANCA-associated vasculitis: J-CANVAS).MethodsWe analyzed the clinical information from 541 Asian patients with AAV enrolled in J-CANVAS. Of them, newly diagnosed and relapsed AAV were included in 448 and 93, respectively. The epidemiological and clinical findings were compared between patients with and without HP. Clinical manifestations related to AAV were evaluated based on the Birmingham Vasculitis Activity Score version 3. To elucidate independent factors in HP development, logistic regression analyses were additionally performed.ResultsOf the total 541 patients (mean age: 71±14 years, M:F = 1:1.2), HP was demonstrated in 28 (5.17%), including 17 (3.79%) in newly diagnosed AAV and 11 (11.8%) in relapsed AAV. The classification of granulomatosis with polyangiitis (GPA) was significantly higher in patients with HP than those without HP (50% vs. 21%, p = 0.0007). In newly diagnosed AAV, patients with HP significantly had higher GPA classification and higher positivity for PR3-ANCA than those without HP (53% vs. 17%, p = 0.001; 29% vs. 9%, p = 0.015, respectively). Conversely, positivity for MPO-ANCA was significantly higher in patients with HP than those without HP in relapsed AAV (91% vs. 55%, p = 0.025), despite not significantly different in the classification of AAV. Headache and cranial neuropathies were significant neurological symptoms in patients with HP compared to those without HP (82% vs. 6.6%, p < 0.0001; 32% vs. 2.9%, p < 0.0001, respectively). Besides, ear, nose and throat (ENT) and mucous membranes/eyes were significantly higher involvements in patients with HP than in those without HP (54% vs. 26%, p = 0.003; 29% vs. 9%, p = 0.003, respectively). Moreover, higher complications of “conjunctive hearing loss” and “sudden visual loss”, which are included in the categories of ENT and mucous membranes/eyes involvement, respectively, were significantly indicated in patients with HP than those without HP (39% vs. 7.2%, p < 0.0001; 21% vs. 1.2%, p < 0.0001, respectively). Multivariable logistic regression analysis identified that ENT (odds ratio [OR] 1.28, 95% confident interval [CI] 1.09 to 1.49, p = 0.002) and mucous membranes/eyes involvement (OR 1.37, CI 1.14 to 1.65, p = 0.0006), as well as conjunctive hearing loss (OR 4.52, CI 1.56 to 13.05, p = 0.005) and sudden visual loss (OR 1.84, CI 1.12 to 3.00, p = 0.015), were independent related factors in patients with HP.ConclusionGPA could be significantly classified in patients with HP. Notably, patients with HP significantly showed higher positivity for PR3-ANCA than those without HP in newly diagnosed AAV. Furthermore, sudden visual loss and conjunctive hearing loss might be implicated in HP development.Disclosure of InterestsNone declared
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Kawamori K, Oguro N, Kida T, Omura S, Nakagomi D, Masatoshi K, Takizawa N, Nomura A, Yuji K, Kondo N, Yasuhiko Y, Yanagida T, Endo K, Hirata S, Kawahata K, Matsui K, Takeuchi T, Ichinose K, Kato M, Yanai R, Matsuo Y, Shimojima Y, Nishioka R, Yamasaki A, Takata T, Ito T, Moriyama M, Takatani A, Miyawaki Y, Kawahito Y, Ito-Ihara T, Kawaguchi T, Yajima N. AB0625 Association between Cytomegalovirus Reactivation and Renal Prognosis during Remission Induction Therapy for ANCA-Associated Vasculitis. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundCytomegalovirus (CMV) has been associated with atherosclerosis in patients with chronic renal failure, and may cause secondary nephrotic syndrome. Therefore, we hypothesized that the reactivation of CMV by immunosuppressive therapy in patients with vasculitis may affect renal function.ObjectivesThe purpose of this study was to investigate relationships between CMV infection and renal function during ANCA-associated vasculitis remission induction therapy.MethodsThis retrospective cohort study enrolled microscopic polyangiitis (MPA), granulomatosis with polyangiitis (GPA), and eosinophilic granulomatosis with polyangiitis patients at 25 sites in Japan who had a first or severe relapse between January 2017 and June 2020. Of these, patients with MPA or GPA who had a positive renal lesion score on BVAS (version 3) at baseline, or vasculitis findings on renal biopsy, CMV assayed by 48 weeks of treatment, were included. Patients were divided into two groups based on the presence or absence of a positive CMV antigen test during the remission induction phase (0–48 weeks of treatment). Outcomes were the rate of change in estimated glomerular filtration rate (eGFR) at 48 weeks after initiation of treatment in both groups, as determined by (eGFR at 48 weeks - eGFR at the initiation of treatment)/eGFR at the initiation of treatment; where lower values were associated with worse renal function. General linear models adjusted for age, gender, presence of diabetes or chronic kidney disease, and the use of rituximab or cyclophosphamide were generated.ResultsA total of 387 patients had CMV antigen measured during ANCA-associated vasculitis treatment, of which 164 had renal involvement and eGFR measured at 48 weeks. Seventy-seven (47.0%) were male and the median age was 75 years (range 69–80 years). CMV reactivation was observed in 44 patients (26.8%). The beta coefficient of multiple regression analysis with CMV positive as 1 and negative as 0 was 0.08 (95% confidence interval -0.13 to 0.29) (p = 0.47). The rate of change in eGFR was higher in the CMV positive group, but not statistically significantly.ConclusionContrary to our hypothesis, renal prognoses tended to be better when CMV reactivation was observed. The patients in the CMV reactivation group may have been treated more aggressively, and some patients with a poor prognosis who were not followed up for 48 weeks dropped out. Further research investigating the adjustment of treatment methods is required.Disclosure of InterestsNone declared
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Nishioka R, Mizushima I, Kida T, Omura S, Nakagomi D, Masatoshi K, Takizawa N, Nomura A, Yuji K, Kondo N, Yasuhiko Y, Yanagida T, Endo K, Hirata S, Kawahata K, Matsui K, Takeuchi T, Ichinose K, Kato M, Yanai R, Matsuo Y, Shimojima Y, Yamasaki A, Takata T, Ito T, Moriyama M, Takatani A, Miyawaki Y, Ito-Ihara T, Kawaguchi T, Yajima N, Kawahito Y, Kawano M. POS0247 GLUCOCORTICOID TAPERING STRATEGY FOR ANCA-ASSOCIATED VASCULITIS: ADDRESSING THE GAP BETWEEN RECOMMENDATIONS AND REAL-WORLD PRACTICE. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundAntineutrophil cytoplasmic antibody -associated vasculitis (AAV) is usually treated with combination of high-dose glucocorticoid (GC) and immunosuppressive agents, followed by tapering GC dose. Although the European League Against Rheumatism (EULAR) has specific recommendations for tapering the GC dose, clinicians often taper it slower than recommended due to concerns of potential disease relapse. However, such slower taper may prolong GC exposure for the patients, increasing the risk of adverse events, particularly infection.ObjectivesThe aims of our study were (1) to clarify GC dose tapering in the treatment of AAV in a real-world setting, in contrast to the EULAR recommendation of 2015 and (2) to compare the incidence of AAV relapse and severe infection between patients underdoing EULAR-recommended tapering and those undergoing slower tapering than the recommendation.MethodsIn this multicenter (25 sites in Japan), observational, retrospective study of AAV, 541 patients who had initial or severe relapse were enrolled between January 2017 and June 2020. Of these, 349 patients with microscopic polyangiitis (MPA) or granulomatosis with polyangiitis (GPA) who entered in GC tapering phase after successful induction treatment were included. These patients were then grouped on the pace of GC tapering, defined as the GC dose at 12 weeks after treatment initiation: (1) EULAR group: 7.5-10 mg/day of GC, according to the EULAR recommendation of 2015, and (2) SLOWER group: >10 mg/day of GC. Their baseline characteristics and clinical outcomes were compared. Primary outcome was defined as relapse-free days from treatment initiation, whereas secondary outcome included the incidence of infectious events requiring hospitalization within 48 weeks from treatment initiation. Multivariable analysis was performed to assess the relationship between tapering pace and clinical outcomes.ResultsThere were 44 patients (12.6%) in the EULAR group and 290 (83.2%) in the SLOWER group. Regarding baseline characteristics, compared with the EULAR group, the SLOWER group had significantly higher serum C-reactive protein level (EULAR, 5.89 ± 6.89 mg/dL vs SLOWER, 7.56 ± 6.01 mg/dL; p = 0.03), as well as a trend toward higher Birmingham Vasculitis Activity Score (version 3) (EULAR, 11.80 ± 7.01 SLOWER, 13.93 ± 7.06; p = 0.08) We did not observe any significant differences in the frequency of relapses between the two groups (EULAR, 8/44, 18.2% vs SLOWER, 55/290, 19.0%; p = 0.63). Multivariable Cox proportional hazard analysis revealed no relationship GC dose at 12 weeks from treatment initiation and incidence of relapse. However, upon logistic regression analysis, the SLOWER group was found to have significant higher risk of a severe infectious event within 48 weeks from treatment initiation (p = 0.046; hazard ratio, 1.27; 95% confidence interval, 1.004 – 1.601).ConclusionOur finding indicates that clinicians tended to taper GC slower for patients with higher disease activity. However, slower GC taper was not found to reduce the frequency of relapse. In addition, slower GC taper was found to increase the risk of a severe infection. Hence, clinicians should pay attention not only relapsing but also late GC taper resulting in the risk of serious infection, especially in patients with higher disease activity of AAV.References[1]Eur J Clin Invest 2015;45 (3): 346–368.[2]Rheumatology (Oxford). 2021 Dec 24;61(1):205-212.[3]Arthritis Res Ther. 2021 Mar 20;23(1):90.[4]Scand J Rheumatol. 2022 Jan 20;1-13.[5]J Rheumatol. 2018 Apr;45(4):521-528.[6]Rheumatol Adv Pract. 2021 Mar 9;5(3):rkab018.[7]Ann Rheum Dis. 2016 Sep;75(9):1583-94.Figure 1.AcknowledgementsWe would like to thank Editage (www.editage.com) for English language editing.Disclosure of InterestsNone declared
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Sakurai Y, Takata T, Tanaka H, Suzuki M. Simulation for improved collimation system of gamma-ray telescope system for boron neutron capture therapy at Kyoto University Reactor. Appl Radiat Isot 2020; 165:109256. [DOI: 10.1016/j.apradiso.2020.109256] [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] [Received: 09/29/2019] [Revised: 05/15/2020] [Accepted: 05/29/2020] [Indexed: 11/29/2022]
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Hu N, Tanaka H, Takata T, Endo S, Masunaga S, Suzuki M, Sakurai Y. Evaluation of PHITS for microdosimetry in BNCT to support radiobiological research. Appl Radiat Isot 2020; 161:109148. [DOI: 10.1016/j.apradiso.2020.109148] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/14/2019] [Accepted: 03/24/2020] [Indexed: 12/01/2022]
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Dóka É, Ida T, Dagnell M, Abiko Y, Luong NC, Balog N, Takata T, Espinosa B, Nishimura A, Cheng Q, Funato Y, Miki H, Fukuto JM, Prigge JR, Schmidt EE, Arnér ESJ, Kumagai Y, Akaike T, Nagy P. Control of protein function through oxidation and reduction of persulfidated states. Sci Adv 2020; 6:eaax8358. [PMID: 31911946 PMCID: PMC6938701 DOI: 10.1126/sciadv.aax8358] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 11/05/2019] [Indexed: 05/17/2023]
Abstract
Irreversible oxidation of Cys residues to sulfinic/sulfonic forms typically impairs protein function. We found that persulfidation (CysSSH) protects Cys from irreversible oxidative loss of function by the formation of CysSSO1-3H derivatives that can subsequently be reduced back to native thiols. Reductive reactivation of oxidized persulfides by the thioredoxin system was demonstrated in albumin, Prx2, and PTP1B. In cells, this mechanism protects and regulates key proteins of signaling pathways, including Prx2, PTEN, PTP1B, HSP90, and KEAP1. Using quantitative mass spectrometry, we show that (i) CysSSH and CysSSO3H species are abundant in mouse liver and enzymatically regulated by the glutathione and thioredoxin systems and (ii) deletion of the thioredoxin-related protein TRP14 in mice altered CysSSH levels on a subset of proteins, predicting a role for TRP14 in persulfide signaling. Furthermore, selenium supplementation, polysulfide treatment, or knockdown of TRP14 mediated cellular responses to EGF, suggesting a role for TrxR1/TRP14-regulated oxidative persulfidation in growth factor responsiveness.
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Affiliation(s)
- É. Dóka
- Department of Molecular Immunology and Toxicology, National Institute of Oncology, 1122 Budapest, Hungary
| | - T. Ida
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 980-8575 Sendai, Japan
| | - M. Dagnell
- Department of Medical Biochemistry and Biophysics, Division of Biochemistry, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Y. Abiko
- Environmental Biology Section, Faculty of Medicine, University of Tsukuba, 305-8575 Tsukuba, Japan
| | - N. C. Luong
- Environmental Biology Section, Faculty of Medicine, University of Tsukuba, 305-8575 Tsukuba, Japan
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, 06 Ngo Quyen, Hue, Vietnam
| | - N. Balog
- Department of Molecular Immunology and Toxicology, National Institute of Oncology, 1122 Budapest, Hungary
| | - T. Takata
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 980-8575 Sendai, Japan
| | - B. Espinosa
- Department of Medical Biochemistry and Biophysics, Division of Biochemistry, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - A. Nishimura
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 980-8575 Sendai, Japan
| | - Q. Cheng
- Department of Medical Biochemistry and Biophysics, Division of Biochemistry, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Y. Funato
- Department of Cellular Regulation, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - H. Miki
- Department of Cellular Regulation, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - J. M. Fukuto
- Department of Chemistry, Sonoma State University, Rohnert Park, Sonoma, CA 94928, USA
| | - J. R. Prigge
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA
| | - E. E. Schmidt
- Department of Microbiology and Immunology, Montana State University, Bozeman, MT 59717, USA
| | - E. S. J. Arnér
- Department of Medical Biochemistry and Biophysics, Division of Biochemistry, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Y. Kumagai
- Environmental Biology Section, Faculty of Medicine, University of Tsukuba, 305-8575 Tsukuba, Japan
| | - T. Akaike
- Department of Environmental Medicine and Molecular Toxicology, Tohoku University Graduate School of Medicine, 980-8575 Sendai, Japan
| | - P. Nagy
- Department of Molecular Immunology and Toxicology, National Institute of Oncology, 1122 Budapest, Hungary
- Corresponding author.
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10
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Fennell D, Hudka M, Darlison L, Lord K, Bzura A, Dzialo J, Pritchard C, Harber J, Takata T, Popat S, Krebs M, Nolan L, Greystoke A, Richards C, Wells-Jordan P, Branson A, Gaba A, Bhundia V, Scotland M, Mohamed S, Dawson A, Poille C, Cowley C, Walter H, King A, Thomas A. P2.06-02 Mesothelioma Stratified Therapy (MiST): A Phase IIA Umbrella Trial for Accelerating the Development of Precision Medicines. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1620] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Hoi S, Takata T, Sugihara T, Ida A, Ogawa M, Mae Y, Fukuda S, Munemura C, Isomoto H. SAT-189 PREDICTIVE VALUE OF CORTICAL THICKNESS MEASURED BY ULTRASONOGRAPHY FOR RENAL IMPAIRMENT. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.223] [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: 11/25/2022] Open
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12
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Hagiwara D, Sato K, Miyazaki M, Kamada M, Moriwaki N, Nakano T, Shiotsuka S, Tokushige C, Toh H, Kamimura H, Togawa A, Takata T. The impact of earlier intervention by an antimicrobial stewardship team for specific antimicrobials in a single weekly intervention. Int J Infect Dis 2018; 77:34-39. [PMID: 30292892 DOI: 10.1016/j.ijid.2018.09.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 06/06/2018] [Revised: 09/26/2018] [Accepted: 09/28/2018] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE The objective of this study was to evaluate the effects of earlier intervention by an antimicrobial stewardship team (AST) on antimicrobial use, antimicrobial resistance rates, and the clinical outcomes, without changing the weekly intervention schedule. METHODS A retrospective study was conducted at Fukuoka University Hospital between April 2013 and March 2016. The effects were compared among three study periods (SP): SP1 (patients receiving anti-methicillin-resistant Staphylococcus aureus agents and carbapenems for ≥14 days), SP2 (patients receiving specific antimicrobials for ≥14 days), and SP3 (patients receiving specific antimicrobials regardless of the duration of treatment). RESULTS The timing of AST intervention was shortened from an average of 15.5days after administration in SP1 to 4.2 days in SP3. The antimicrobial use density (AUD) of carbapenems and piperacillin-tazobactam decreased significantly (SP2 vs. SP3, p<0.05), and the costs of specific antimicrobials decreased (SP1, US$ 1080000; SP2, US$ 944000; SP3, US$ 763000). The rates of carbapenem resistance among Pseudomonas aeruginosa isolates showed a significant reduction from 16.2% in SP2 to 8.7% in SP3 (p<0.05). The mortality rate and length of stay did not change during the study period. CONCLUSIONS Earlier intervention by an AST could contribute to the proper use of antimicrobials without adversely affecting patient outcomes.
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Affiliation(s)
- D Hagiwara
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka, Japan
| | - K Sato
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka, Japan
| | - M Miyazaki
- Department of Pharmacy, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - M Kamada
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka, Japan
| | - N Moriwaki
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka, Japan
| | - T Nakano
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - S Shiotsuka
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka, Japan
| | - C Tokushige
- Department of Clinical Laboratory, Fukuoka University Hospital, Fukuoka, Japan
| | - H Toh
- Department of Clinical Laboratory, Fukuoka University Hospital, Fukuoka, Japan
| | - H Kamimura
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka, Japan
| | - A Togawa
- Department of Infection Control, Fukuoka University Hospital, Fukuoka, Japan; Department of Medical Oncology, Hematology, and Infectious Diseases, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - T Takata
- Department of Infection Control, Fukuoka University Hospital, Fukuoka, Japan; Department of Medical Oncology, Hematology, and Infectious Diseases, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
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13
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Affiliation(s)
- A. Uchibori
- Japan Atomic Energy Agency, Fast Reactor Cycle System Research and Development Center, 4002 Narita, O-arai, Ibaraki 311-1393, Japan
| | - A. Watanabe
- NDD Corporation, Fast Reactor Cycle System Research and Development Center, 1-1-6 Jonan, Mito, Ibaraki 310-0803, Japan
| | - T. Takata
- Japan Atomic Energy Agency, Fast Reactor Cycle System Research and Development Center, 4002 Narita, O-arai, Ibaraki 311-1393, Japan
| | - H. Ohshima
- Japan Atomic Energy Agency, Fast Reactor Cycle System Research and Development Center, 4002 Narita, O-arai, Ibaraki 311-1393, Japan
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14
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Altwerger G, Bonazzoli E, Bellone S, Takata T, Menderes G, Pettinella F, Bianchi A, Riccio F, Feinberg J, Zammataro L, Han C, Yadav G, Dugan K, Morneault A, Ponte J, Buza N, Hui P, Litkouhi B, Ratner E, Silasi D, Huang G, Azodi M, Schwartz P, Santin A. Remarkable in vitro and in vivo activity of IMGN853, an antibody-drug conjugate targeting folate receptor alpha linked to the tubulin-disrupting maytansinoid DM4, in biologically aggressive (type II) endometrial cancers. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.159] [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: 11/17/2022]
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15
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Izumi Y, Takata T, Miyamoto R, Kawarai T, Saito Y, Murayama S, Kaji R. An autopsied case with novel mutated hereditary diffuse leukoencephalopathy with spheroid (HDLS). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1872] [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: 10/18/2022]
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16
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Takata T. A neuropathological report of familial amyotrophic lateral sclerosis with an R521S FUS/TLS mutation. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2012] [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: 11/26/2022]
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17
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Tanaka H, Sakurai Y, Takata T, Watanabe T, Kawabata S, Suzuki M, Masunaga SI, Taki K, Akabori K, Watanabe K, Ono K. Note: Development of real-time epithermal neutron detector for boron neutron capture therapy. Rev Sci Instrum 2017; 88:056101. [PMID: 28571445 DOI: 10.1063/1.4982036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The real-time detection of epithermal neutrons forms an important aspect of boron neutron capture therapy. In this context, we developed an epithermal neutron detector based on the combination of a small Eu:LiCaAlF6 scintillator and a quartz fiber in order to fulfill the irradiation-field requirements for boron neutron capture therapy. The irradiation test is performed with the use of a reactor-based neutron source. The thermal and epithermal neutron sensitivities of our epithermal neutron detector are estimated to be 9.52 × 10-8 ± 1.59 × 10-8 cm2 and 1.20 × 10-6 cm2 ± 8.96 × 10-9 cm2, respectively. We also subject the developed epithermal neutron detector to actual irradiation fields, and we confirm that the epithermal neutron flux can be measured in realtime.
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Affiliation(s)
- H Tanaka
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan
| | - Y Sakurai
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan
| | - T Takata
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan
| | - T Watanabe
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan
| | - S Kawabata
- Osaka Medical College, Takatsuki, Osaka, Japan
| | - M Suzuki
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan
| | - S-I Masunaga
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan
| | - K Taki
- Sumitomo Heavy Industries, Osaki 2-1-1, Shinagawa, Tokyo, 141-6025, Japan
| | - K Akabori
- Sumitomo Heavy Industries, Osaki 2-1-1, Shinagawa, Tokyo, 141-6025, Japan
| | - K Watanabe
- Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Japan
| | - K Ono
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan
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18
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Kondo N, Nakayama K, Sakurai Y, Takata T, Kume K, Miyatake S, Inoue T, Ogawa O, Suzuki M. P17.09 Lipid alteration following proton beam irradiation in mouse brain of radiation necrosis model. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.455] [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: 11/15/2022] Open
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19
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Sawada J, Aoki D, Kuzume M, Nakazono K, Otsuka H, Takata T. A vinylic rotaxane cross-linker for toughened network polymers from the radical polymerization of vinyl monomers. Polym Chem 2017. [DOI: 10.1039/c7py00193b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A [2]rotaxane cross-linker with one vinyl group in each component was synthesized as a vinylic cross-linker for highly toughened network polymers.
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Affiliation(s)
- J. Sawada
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - D. Aoki
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - M. Kuzume
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - K. Nakazono
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - H. Otsuka
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
| | - T. Takata
- Department of Chemical Science and Engineering
- Tokyo Institute of Technology
- Meguro-ku
- Japan
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20
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Abstract
Destruction of cementum and alveolar bone is the main causative event for the exfoliation of teeth as a consequence of periodontitis. Prostaglandin E2 (PGE2) and PGE receptor subtypes (EPs) play an important role in modulating osteoblast-mediated osteoclastogenesis; however, no information is available on the role of PGE2 and EPs in regulating cementoblast-mediated cementoclastogenesis. We hypothesized that the PGE2-EPs pathway also regulates cementoblasts’ ability to activate cementoclasts. For these studies, OCCM-30 cells (a mouse cementoblast cell line) were exposed to PGE2 and specific EP agonists. PGE2 (100 ng/mL) and EP4 agonist (1 μM) up-regulated RANKL and IL-6 mRNA levels, while they down-regulated OPG mRNA expression. The EP4 antagonist (1 μM) eliminated these effects of PGE2. PGE2 treatment of co-cultures of OCCM-30 cells with bone marrow cells induced TRAP-positive cells via the EP4 pathway. These findings suggest that PGE2 promotes cementoblast-mediated cementoclastogenesis by regulating the expression of RANKL and OPG via the EP4 pathway.
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Affiliation(s)
- H Oka
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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21
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Tanaka E, Kawai N, Tanaka M, Todoh M, van Eijden T, Hanaoka K, Dalla-Bona DA, Takata T, Tanne K. The Frictional Coefficient of the Temporomandibular Joint and Its Dependency on the Magnitude and Duration of Joint Loading. J Dent Res 2016; 83:404-7. [PMID: 15111633 DOI: 10.1177/154405910408300510] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In synovial joints, friction between articular surfaces leads to shear stress within the cartilaginous tissue, which might result in tissue rupture and failure. Joint friction depends on synovial lubrication of the articular surfaces, which can be altered due to compressive loading. Therefore, we hypothesized that the frictional coefficient of the temporomandibular joint (TMJ) is affected by the magnitude and duration of loading. We tested this by measuring the frictional coefficient in 20 intact porcine TMJs using a pendulum-type friction tester. The mean frictional coefficient was 0.0145 (SD 0.0027) after a constant loading of 50 N during 5 sec. The frictional coefficient increased with the length of the preceding loading duration and exceeded 0.0220 (SD 0.0014) after 1 hr. Application of larger loading (80 N) resulted in significantly larger frictional coefficients. In conclusion, the frictional coefficient in the TMJ was proportional to the magnitude and duration of joint loading.
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Affiliation(s)
- E Tanaka
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
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22
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Nishimura S, Mizuno H, Akashi T, Takata T, Nakamura F, Goda F, Mihara C, Sato H, Kurihara M, Sasaki M. MON-P192: Clinical Usefulness of New Type Formulathat Features a State Change from Liquid to Semi-Solidified in the Stomach. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30826-3] [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: 11/15/2022]
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23
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Kunimatsu R, Yoshimi Y, Hirose N, Awada T, Miyauchi M, Takata T, Li W, Zhu L, Denbesten P, Tanimoto K. The C-terminus of amelogenin enhances osteogenic differentiation of human cementoblast lineage cells. J Periodontal Res 2016; 52:218-224. [DOI: 10.1111/jre.12384] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2016] [Indexed: 12/28/2022]
Affiliation(s)
- R. Kunimatsu
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - Y. Yoshimi
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - N. Hirose
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - T. Awada
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - M. Miyauchi
- Department of Oral Maxillofacial and Pathobiology; Basic Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - T. Takata
- Department of Oral Maxillofacial and Pathobiology; Basic Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - W. Li
- Department of Orofacial Sciences; University of California; San Francisco CA USA
| | - L. Zhu
- Department of Orofacial Sciences; University of California; San Francisco CA USA
| | - P.K. Denbesten
- Department of Orofacial Sciences; University of California; San Francisco CA USA
| | - K. Tanimoto
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
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24
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Sato T, Takata T, Nebashi T, Murakawa S, Mizuno K, Akimoto N. 696 MEK and BRAF inhibitors augment the production and accumulation of sebum in hamster sebocytes. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.738] [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: 10/21/2022]
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25
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Fujimoto N, Tanaka H, Sakurai Y, Takata T, Kondo N, Narabayashi M, Nakagawa Y, Watanabe T, Kinashi Y, Masunaga S, Maruhashi A, Ono K, Suzuki M. Improvement of depth dose distribution using multiple-field irradiation in boron neutron capture therapy. Appl Radiat Isot 2015; 106:134-8. [PMID: 26282566 DOI: 10.1016/j.apradiso.2015.07.041] [Citation(s) in RCA: 2] [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] [Received: 02/06/2015] [Revised: 05/10/2015] [Accepted: 07/25/2015] [Indexed: 10/23/2022]
Abstract
It is important that improvements are made to depth dose distribution in boron neutron capture therapy, because the neutrons do not reach the innermost regions of the human body. Here, we evaluated the dose distribution obtained using multiple-field irradiation in simulation. From a dose volume histogram analysis, it was found that the mean and minimum tumor doses were increased using two-field irradiation, because of improved dose distribution for deeper-sited tumors.
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Affiliation(s)
- N Fujimoto
- Kyoto University Research Reactor Institute, Japan
| | - H Tanaka
- Kyoto University Research Reactor Institute, Japan.
| | - Y Sakurai
- Kyoto University Research Reactor Institute, Japan
| | - T Takata
- Kyoto University Research Reactor Institute, Japan
| | - N Kondo
- Kyoto University Research Reactor Institute, Japan
| | | | - Y Nakagawa
- Kyoto University Research Reactor Institute, Japan
| | - T Watanabe
- Kyoto University Research Reactor Institute, Japan
| | - Y Kinashi
- Kyoto University Research Reactor Institute, Japan
| | - S Masunaga
- Kyoto University Research Reactor Institute, Japan
| | - A Maruhashi
- Kyoto University Research Reactor Institute, Japan
| | - K Ono
- Kyoto University Research Reactor Institute, Japan
| | - M Suzuki
- Kyoto University Research Reactor Institute, Japan
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26
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Nakamura T, Ushigome H, Takata T, Nakao T, Harada S, Koshino K, Suzuki T, Ito T, Nobori S, Yoshimura N. Histopathologic Impacts of Everolimus Introduction on Kidney Transplant Recipients. Transplant Proc 2015; 47:630-4. [DOI: 10.1016/j.transproceed.2014.09.180] [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] [Received: 09/09/2014] [Accepted: 09/29/2014] [Indexed: 10/23/2022]
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27
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Takeuchi M, Sakasai-Sakai A, Takata T, Ueda T, Takino J, Tsutsumi M, Hyogo H, Yamagishi S. Serum levels of toxic AGEs (TAGE) may be a promising novel biomarker in development and progression of NASH. Med Hypotheses 2015; 84:490-3. [PMID: 25697114 DOI: 10.1016/j.mehy.2015.02.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 02/04/2015] [Indexed: 12/13/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) ranges from simple steatosis to nonalcoholic steatohepatitis (NASH), leads to fibrosis and potentially cirrhosis, liver failure, and hepatocellular carcinoma, and is one of the most common causes of liver disease worldwide. NAFLD has also been implicated in other medical conditions such as insulin resistance, obesity, metabolic syndrome, hyperlipemia, hypertension, cardiovascular disease, and diabetes. Continuous hyperglycemia has been implicated in the pathogenesis of diabetic micro- and macro-vascular complications via various metabolic pathways, and numerous hyperglycemia-induced metabolic and hemodynamic conditions exist, including the increased generation of various types of advanced glycation end-products (AGEs). We recently demonstrated that glyceraldehyde-derived AGEs (Glycer-AGEs), the predominant components of toxic AGEs (TAGE), played an important role in the pathogenesis of angiopathy in diabetic patients. Moreover, a growing body of evidence suggests that the interaction between TAGE and the receptor for AGEs may alter intracellular signaling, gene expression, and the release of pro-inflammatory molecules and also elicits the generation of oxidative stress in numerous types of cells including hepatocytes and hepatic stellate cells. Serum levels of TAGE were significantly higher in NASH patients than in those with simple steatosis and healthy controls. Moreover, serum levels of TAGE inversely correlated with adiponectin (adiponectin is produced by adipose tissue and is an anti-inflammatory adipokine that can increase insulin sensitivity). Furthermore, immunohistochemical staining of TAGE showed intense staining in the livers of patients with NASH. Serum levels of TAGE may be a useful biomarker for discriminating NASH from simple steatosis. The administration of atorvastatin (10 mg daily) for 12 months significantly improved NASH-related metabolic parameters and significantly decreased serum levels of TAGE. The steatosis grade and NAFLD activity score were also significantly improved. These results demonstrated that atorvastatin decreased the serum levels of TAGE in NASH patients with dyslipidemia and suggest the usefulness of TAGE as a biomarker for the attenuation of NASH. Serum levels of TAGE were significantly higher in non-B or non-C hepatocellular carcinoma (NBNC-HCC) patients than in NASH subjects without HCC or control subjects. TAGE may be involved in the pathogenesis of NBNC-HCC, and could, therefore, be a biomarker that could discriminate NBNC-HCC from NASH. We propose that serum levels of TAGE are promising novel targets for the diagnosis of and therapeutic interventions against NASH.
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Affiliation(s)
- M Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan.
| | - A Sakasai-Sakai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - T Takata
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - T Ueda
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - J Takino
- Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Hiroshima International University, Hiroshima, Japan
| | - M Tsutsumi
- Department of Hepatology, Kanazawa Medical University, Ishikawa, Japan
| | - H Hyogo
- Department of Gastroenterology and Metabolism, Hiroshima University Hospital, Hiroshima, Japan
| | - S Yamagishi
- Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Fukuoka, Japan
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28
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Kimura M, Makio K, Hara K, Hiruma W, Fujita Y, Takata T, Nishio K, Ono N. A Supramolecular Substance, [2] Rotaxane, Induces Apoptosis in Human Molt-3 Acute Lymphoblastic Leukemia Cells. Drug Res (Stuttg) 2014; 65:614-6. [PMID: 25463596 DOI: 10.1055/s-0034-1395628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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
The antitumor effects of a supramolecular substance, the [2] rotaxane (TRO-A0001), and its molecular mechanisms were investigated. TRO-A0001 suppressed the proliferation of cultured human Molt-3 acute lymphoblastic leukemia cells for 12-72 h in a dose-dependent manner. Based on flow cytometry, TRO-A0001 clearly induced apoptosis after 24 h. The mitochondrial membrane potential disappeared after treatment with 1.0 µM of TRO-A0001. Expression of the cleaved forms of capase-9 and caspase-3 was significantly increased in cells exposed to TRO-A0001, whereas the expression of XIAP, a type of inhibitor of apoptosis family, was decreased. These results suggest that [2] rotaxane TRO-A0001 may be a highly promising new antitumor medicine.
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Affiliation(s)
- M Kimura
- Medicinal-Informatics and Research Unit, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - K Makio
- Medicinal-Informatics and Research Unit, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - K Hara
- Medicinal-Informatics and Research Unit, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - W Hiruma
- Medicinal-Informatics and Research Unit, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Y Fujita
- Department of Genome Biology, Kinki University School of Medicine, Osaka, Japan
| | - T Takata
- Department of Organic and Polymeric Materials, Tokyo Institute of Technology, Tokyo, Japan
| | - K Nishio
- Department of Genome Biology, Kinki University School of Medicine, Osaka, Japan
| | - N Ono
- Medicinal-Informatics and Research Unit, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
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Maru S, Ishigaki Y, Shinohara N, Takata T, Tomosugi N, Nonomura K. Reply by authors. J Urol 2013; 190:1957. [PMID: 24266051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Hara S, Hosoi K, Suga Y, Takata T, Degami H, Kinoshita Y, Min K, Katsuyama S, Takayama O, Murata M. A Pleomorphic Carcinoma of the Lung with Small Intestinal Metastasis Producing Multiple Cytokines. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.137] [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: 11/12/2022] Open
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Kawazoe A, Inubushi T, Miyauchi M, Ishikado A, Tanaka E, Tanne K, Takata T. Orally Administered Liposomal Lactoferrin Inhibits Inflammation-Related Bone Breakdown Without Interrupting Orthodontic Tooth Movement. J Periodontol 2013; 84:1454-62. [DOI: 10.1902/jop.2012.120508] [Citation(s) in RCA: 14] [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] [Indexed: 11/13/2022]
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Takata T, Ohshiro T, Hashimoto T, Yoshimura H, Togawa A, Fujita M, Watanabe K, Tanaka M, Muratani T, Tanihara S, Une H. P210 Active screening of vancomycin-resistant enterococci colonization and the patient outcome in a tertiary care university hospital in Japan. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70451-5] [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: 10/26/2022]
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Ogawa I, Takata T, Miyauchi M, Ito H, Zhao M, Kudo Y, Nikai H. nm23-H1 expression in salivary adenoid cystic carcinoma in relation to metastasis and survival. Oncol Rep 2012; 4:707-11. [PMID: 21590125 DOI: 10.3892/or.4.4.707] [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
The expression of nm23-H1, product of putative metastasis suppressor gene, was evaluated immunohistochemically in 31 cases of adenoid cystic carcinoma (ACC) of salivary glands and correlated with their clinicopathologic features. All benign salivary gland tumors of various types, which were used as a non-metastatic control, showed obvious nm23-H1 expression. The immunoreactivity of tumor cells was stronger than that of normal salivary gland components, although the distribution patterns of positive cells considerably varied between tumor types. In ACC, 16 cases (52%) showed the reduction of nm23-H1 immunoreactivity either in positive cell frequency or staining intensity. These cases were referred to as negative cases. The incidence of negative cases was 67% (10/15) and 38% (6/16) of the cases with and without metastasis, respectively. Furthermore, metastatic tumors showed decreased immunoreactivity of this protein compared with their primary tumors. The prognosis of patients with a nm23 negative tumor was generally poorer than that with a positive tumor. These results may suggest that the reduction of nm23-H1 protein has an implication for metastasis of ACC.
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Affiliation(s)
- I Ogawa
- HIROSHIMA UNIV,SCH DENT,DEPT ORAL PATHOL,HIROSHIMA 734,JAPAN
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Matsubara K, Koshida H, Takata T, Horii J, Iida H, Koshida K, Matsui O, Fukuda A. SU-D-217BCD-02: Online Angular Tube Current Modulation in X-Ray Computed Tomography: Can Tube Current Be Modulated Appropriately? Med Phys 2012; 39:3619. [PMID: 28517424 DOI: 10.1118/1.4734693] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE In X-ray computed tomography (CT), X-rays are significantly less attenuated in the anteroposterior direction and more in the lateral direction. Therefore, the tube current should be adjusted within one gantry rotation using angular tube current modulation (TCM). The aim of this study was to evaluate whether online angular TCM could reduce radiation dose appropriately. METHODS A 128-detector dual-source CT (SOMATOM Definition Flash; Siemens Healthcare, Erlangen, Germany) and an online TCM system (CARE Dose 4D; Siemens Healthcare) were used. Dose profiles were acquired using the CT Dose Profiler (RTI Electronics, Molndal, Sweden) and an elliptical cylindrical phantom (MHT; Kyoto Kagaku, Kyoto, Japan) for helical CT scans with and without TCM. In addition, absorbed dose distributions within a single section were acquired using an anthropomorphic phantom (RANI 10; The Phantom Laboratory, Salem, NY) and radiophotoluminescent glass dosimeters (RPLDs) (GD- 302M; Chiyoda Technol, Tokyo, Japan) for helical CT scans with and without TCM after placing RPLDs within all holes of one section and pasting them around the section. A graph of each absorbed dose distribution was drawn using graphing software (ORIGIN 8.6; OriginLab, Northampton, MA). RESULTS The acquired dose profiles suggested that online angular TCM could adjust the tube current in near-real time according to the attenuation measured from the previous projection. The profiles gradually stabilized because the tube current was adjusted properly. The absorbed doses were low and the distributions were stable with TCM compared with those without TCM. CONCLUSIONS In X-ray CT, an online angular TCM can reduce radiation dose effectively by adjusting tube current within one gantry rotation in near-real time.
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Affiliation(s)
- K Matsubara
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
| | - H Koshida
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
| | - T Takata
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
| | - J Horii
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
| | - H Iida
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
| | - K Koshida
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
| | - O Matsui
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
| | - A Fukuda
- Kanazawa University, Kanazawa.,Kanazawa University Hospital, Kanazaw
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Hatano H, Kudo Y, Ogawa I, Shimasue H, Shigeishi H, Ohta K, Higashikawa K, Takechi M, Takata T, Kamata N. Establishment of mesenchymal cell line derived from human developing odontoma. Oral Dis 2012; 18:756-62. [DOI: 10.1111/j.1601-0825.2012.01942.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kadonishi Y, Deie M, Takata T, Ochi M. Acceleration of tendon–bone healing in anterior cruciate ligament reconstruction using an enamel matrix derivative in a rat model. ACTA ACUST UNITED AC 2012; 94:205-9. [DOI: 10.1302/0301-620x.94b2.26904] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [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]
Abstract
We examined whether enamel matrix derivative (EMD) could improve healing of the tendon–bone interface following reconstruction of the anterior cruciate ligament (ACL) using a hamstring tendon in a rat model. ACL reconstruction was performed in both knees of 30 Sprague-Dawley rats using the flexor digitorum tendon. The effect of commercially available EMD (EMDOGAIN), a preparation of matrix proteins from developing porcine teeth, was evaluated. In the left knee joint the space around the tendon–bone interface was filled with 40 µl of EMD mixed with propylene glycol alginate (PGA). In the right knee joint PGA alone was used. The ligament reconstructions were evaluated histologically and biomechanically at four, eight and 12 weeks (n = 5 at each time point). At eight weeks, EMD had induced a significant increase in collagen fibres connecting to bone at the tendon–bone interface (p = 0.047), whereas the control group had few fibres and the tendon–bone interface was composed of cellular and vascular fibrous tissues. At both eight and 12 weeks, the mean load to failure in the treated specimens was higher than in the controls (p = 0.009). EMD improved histological tendon–bone healing at eight weeks and biomechanical healing at both eight and 12 weeks. EMD might therefore have a human application to enhance tendon–bone repair in ACL reconstruction.
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Affiliation(s)
- Y. Kadonishi
- Hiroshima University, Kasumi
1-2-3, Minami-ku, Hiroshima-City
734-8551, Japan
| | - M. Deie
- Hiroshima University, Kasumi
1-2-3, Minami-ku, Hiroshima-City
734-8551, Japan
| | - T. Takata
- Hiroshima University, Kasumi
1-2-3, Minami-ku, Hiroshima-City
734-8551, Japan
| | - M. Ochi
- Hiroshima University, Kasumi
1-2-3, Minami-ku, Hiroshima-City
734-8551, Japan
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Rego EB, Inubushi T, Miyauchi M, Kawazoe A, Tanaka E, Takata T, Tanne K. Ultrasound stimulation attenuates root resorption of rat replanted molars and impairs tumor necrosis factor-α signaling in vitro. J Periodontal Res 2011; 46:648-54. [DOI: 10.1111/j.1600-0765.2011.01384.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ohara M, Miyauchi M, Tsuruda K, Takata T, Sugai M. Topical application of Aggregatibacter actinomycetemcomitans cytolethal distending toxin induces cell cycle arrest in the rat gingival epithelium in vivo. J Periodontal Res 2011; 46:389-95. [PMID: 21361960 DOI: 10.1111/j.1600-0765.2011.01348.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Aggregatibacter actinomycetemcomitans is one of the etiological pathogens implicated in the onset of periodontal disease. This pathogen produces cytolethal distending toxin (CDT) that acts as a genotoxin to induce cell cycle arrest and cellular distension in cultured cell lines. Therefore, CDT is a possible virulence factor; however, the in vivo activity of CDT on periodontal tissue has not been explored. Here, CDT was topically applied into the rat molar gingival sulcus; and the periodontal tissue was histologically and immunohistochemically examined. MATERIALS AND METHODS Recombinant purified A. actinomycetemcomitans CDT was applied to gingival sulcus of male Wistar rats and tissue samples were immunohistochemmically examined. RESULTS One day after application, infiltration of neutrophils and dilation of blood vessels in the gingival connective tissue were found. At day three, desquamation and detachment of cells in the junctional epithelium was observed. This abrasion of junctional epithelium was not observed in rats treated with mutated CDT, in which a His274Ala mutation is present in the CdtB subunit. This indicates the tissue abrasion may be caused by the genotoxicity of CdtB. Expression of the proliferating cell nuclear antigen (PCNA), a marker for proliferating cells, was significantly suppressed using CDT treatment in the junctional epithelium and gingival epithelium. CONCLUSION Using the rat model, these data suggest CDT intoxication induces cell cycle arrest and damage in periodontal epithelial cells in vivo.
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Affiliation(s)
- M Ohara
- Departments of Bacteriology, Hiroshima University Graduate School of Biomedical Sciences, Japan
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Ekuni D, Yamanaka R, Yamamoto T, Miyauchi M, Takata T, Watanabe T. Effects of mechanical stimulation by a powered toothbrush on the healing of periodontal tissue in a rat model of periodontal disease. J Periodontal Res 2010; 45:45-51. [DOI: 10.1111/j.1600-0765.2009.01195.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Takashima T, Hinoue K, Kihara N, Hayashi M, Koyama Y, Takata T. Graftpolyrotaxane: Graft polymer possessing movable graft chains on cyclodextrins as the polyrotaxane wheels. ACTA ACUST UNITED AC 2009. [DOI: 10.1088/1742-6596/184/1/012024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Tanaka H, Sakurai Y, Suzuki M, Takata T, Masunaga S, Kinashi Y, Kashino G, Liu Y, Mitsumoto T, Yajima S, Tsutsui H, Takada M, Maruhashi A, Ono K. Improvement of dose distribution in phantom by using epithermal neutron source based on the Be(p,n) reaction using a 30 MeV proton cyclotron accelerator. Appl Radiat Isot 2009; 67:S258-61. [PMID: 19376720 DOI: 10.1016/j.apradiso.2009.03.096] [Citation(s) in RCA: 15] [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: 10/20/2022]
Abstract
In order to generate epithermal neutrons for boron neutron capture therapy (BNCT), we proposed the method of filtering and moderating fast neutrons, which are emitted from the reaction between a beryllium target and 30 MeV protons accelerated by a cyclotron, using an optimum moderator system composed of iron, lead, aluminum, calcium fluoride, and enriched (6)LiF ceramic filter. At present, the epithermal-neutron source is under construction since June 2008 at Kyoto University Research Reactor Institute. This system consists of a cyclotron to supply a proton beam of about 1 mA at 30 MeV, a beam transport system, a beam scanner system for heat reduction on the beryllium target, a target cooling system, a beam shaping assembly, and an irradiation bed for patients. In this article, an overview of the cyclotron-based neutron source (CBNS) and the properties of the treatment neutron beam optimized by using the MCNPX Monte Carlo code are presented. The distribution of the RBE (relative biological effectiveness) dose in a phantom shows that, assuming a (10)B concentration of 13 ppm for normal tissue, this beam could be employed to treat a patient with an irradiation time less than 30 min and a dose less than 12.5 Gy-eq to normal tissue. The CBNS might be an alternative to the reactor-based neutron sources for BNCT treatments.
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Affiliation(s)
- H Tanaka
- Research Reactor Institute, Kyoto University, Asashiro-nishi 2-1010, Kumatori-cho, Osaka 590-0494, Japan.
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Inubushi T, Tanaka E, Rego E, Kitagawa M, Kawazoe A, Ohta A, Okada H, Koolstra J, Miyauchi M, Takata T, Tanne K. Effects of Ultrasound on the Proliferation and Differentiation of Cementoblast Lineage Cells. J Periodontol 2008; 79:1984-90. [DOI: 10.1902/jop.2008.080081] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Siriwardena BSMS, Kudo Y, Ogawa I, Tilakaratne WM, Takata T. Aberrant beta-catenin expression and adenomatous polyposis coli gene mutation in ameloblastoma and odontogenic carcinoma. Oral Oncol 2008; 45:103-8. [PMID: 18486530 DOI: 10.1016/j.oraloncology.2008.03.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2008] [Revised: 04/06/2008] [Accepted: 03/06/2008] [Indexed: 10/22/2022]
Abstract
The Wnt pathway is involved in carcinogenesis and three regulatory genes of the Wnt pathway, APC (adenomatous polyposis coli), beta-catenin and Axin are frequently mutated in some primary human cancers. This study was conducted to clarify the relation of beta-catenin accumulation and the mutation of the CTNNB1 (beta-catenin) gene with the mutation of APC gene in the process of development of odontogenic tumors including ameloblastoma and odontogenic carcinoma (OC). beta-Catenin accumulation was examined by immunohistochemistry in formalin-fixed, paraffin-embedded samples of six ameloblastomas and eight OCs. We also performed a mutation analysis of CTNNB1 and APC to examine the cause of beta-catenin accumulation. All ameloblastoma cases and six out of eight (75%) OC cases exhibited beta-catenin accumulation in the nucleus. CTNNB1 mutation was only found in one OC case, whereas three of six (50%) ameloblastoma cases and two out of eight (25%) OC cases had APC mutations within the mutational cluster region. Our findings suggest that aberrant beta-catenin expression and APC missense mutation may play an important role for the pathogenesis of epithelial odontogenic tumors.
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Affiliation(s)
- B S M S Siriwardena
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima 734-8553, Japan
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Siriwardena BSMS, Kudo Y, Ogawa I, Udagama MNGPK, Tilakaratne WM, Takata T. VEGF-C is associated with lymphatic status and invasion in oral cancer. J Clin Pathol 2007; 61:103-8. [PMID: 17351086 DOI: 10.1136/jcp.2007.047662] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Nodal metastasis is a major prognostic indicator for oral squamous cell carcinoma (OSCC) progression. Recently, it has been revealed that lymphangiogenic growth factor VEGF-C and its receptor Flt-4 play an important role for invasion and metastasis in cancer cells. AIM To examine VEGF-C expression and its correlation with lymphatic status, including the number of lymph vessels and lymphatic invasion, tumour invasion and metastasis in OSCC. METHODS Intratumoural and peritumoural lymphatic vessels were examined using D2-40 in 54 OSCC cases and correlated with VEGF-C expression and clinicopathological findings. The histological pattern of invasion and pathological findings were compared. RESULTS High expression of VEGF-C was frequently observed in OSCC and was associated with increased number of lymph vessels and lymphatic invasion. VEGF-C was well correlated with invasion pattern and metastasis. CONCLUSIONS Results suggest that VEGF-C may play an important role for lymphangiogenesis and invasion in the metastatic process and can be a strong predicting factor for metastasis of OSCC.
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Affiliation(s)
- B S M S Siriwardena
- Department of Oral and Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
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Abstract
Periostin is a secreted protein that shares a structural homology to the axon guidance protein fasciclin I (FAS1) in insects and was originally named as osteoblast-specific factor-2 (Osf2). Periostin is particularly highly homologus to Betaig-h3, which promotes cell adhesion and spreading of fibroblasts. It has recently been reported that Periostin was frequently overexpressed in various types of human cancers. Although the detailed function of Periostin is still unclear, Periostin-integrin interaction through FAS1 domain is thought to be involved in tumor development. In addition, Periostin stimulates metastatic growth by promoting cancer cell survival, invasion and angiogenesis. Therefore, Periostin can be a useful marker to predict the behavior of cancer. This review summarizes the recent understanding of Periostin roles in tumor development and speculates on the usefulness of Periostin as a therapeutic and diagnostic target for cancer.
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Affiliation(s)
- Y Kudo
- Department of Oral and Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan.
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Takata T, Hitoki G, Kondo JN, Hara M, Kobayashi H, Domen K. Visible-light-driven photocatalytic behavior of tantalum-oxynitride and nitride. Res Chem Intermed 2007. [DOI: 10.1163/156856707779160898] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mada Y, Miyauchi M, Oka H, Kitagawa M, Sakamoto K, Iizuka S, Sato S, Noguchi K, Somerman MJ, Takata T. Effects of Endogenous and Exogenous Prostaglandin E2on the Proliferation and Differentiation of a Mouse Cementoblast Cell Line (OCCM-30). J Periodontol 2006; 77:2051-8. [PMID: 17209790 DOI: 10.1902/jop.2006.060148] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Cementum formation is considered to be a critical event for successful regeneration of periodontal tissues. Cementoblasts share many characteristics with osteoblasts. Prostaglandin E(2) (PGE(2)) is an important local factor in bone metabolism. Although the effects of PGE(2) on osteoblasts are well known, its effects on cementoblasts have not yet been established. We examined the effects of PGE(2) on proliferation and differentiation in a mouse cementoblast cell line, OCCM-30 cells. METHODS OCCM-30 cells were treated with three concentrations of PGE(2) (10, 100, and 1,000 ng/ml). Cell number, alkaline phosphatase (ALP) activity, and expression for mineralization-related genes were determined. Osteoprotegerin (OPG) and receptor activator of nuclear factor-kappa B (NF-kappaB) ligand (RANKL) expression were also examined by real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). RESULTS The addition of PGE(2) at the highest dose used in this study suppressed cell proliferation of OCCM-30 cells. The expression of mineralization-related marker mRNA, such as type 1 collagen, ALP, bone sialoprotein (BSP), and osteocalcin (OCN), was constitutively detected in OCCM-30 cells. PGE(2) dose dependently stimulated ALP activity and BSP-mRNA expression in OCCM-30 cells at day 3. Transcripts for OPG and RANKL and the protein level of OPG in culture media were upregulated with PGE(2) stimulation. CONCLUSION These results demonstrate that PGE(2) suppressed cementoblast proliferation but stimulated ALP activity and the BSP-mRNA level, suggesting a role of PGE(2) in controlling cementoblast differentiation, and further indicate that PGE(2) modulates RANKL and OPG expression in cementoblasts; the increase of OPG secreted from cementoblasts with PGE(2) stimulation may be essential to protect the root surface from resorption.
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Affiliation(s)
- Y Mada
- Department of Oral Maxillofacial Pathobiology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
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Siriwardena BSMS, Kudo Y, Ogawa I, Kitagawa M, Kitajima S, Hatano H, Tilakaratne WM, Miyauchi M, Takata T. Periostin is frequently overexpressed and enhances invasion and angiogenesis in oral cancer. Br J Cancer 2006; 95:1396-403. [PMID: 17060937 PMCID: PMC2360586 DOI: 10.1038/sj.bjc.6603431] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Oral squamous-cell carcinoma (OSCC) is one of the most common types of human cancer. Typically OSCC cells show persistent invasion that frequently leads to local recurrence and distant lymphatic metastasis. We previously identified Periostin as the gene demonstrating the highest fold change expression in the invasive clone by comparing the transcriptional profile of parent OSCC cell line and a highly invasive clone. Here, we demonstrated that Periostin overexpression enhanced invasiveness in oral cancer cell lines. To know the role of Periostin in invasion, angiogenesis and metastasis in OSCC cases, we first examined the expression of Periostin mRNA in 31 OSCC cases by RT-PCR and Periostin protein in 74 OSCC cases by immunohistochemistry. Then, we compared the Periostin expression with invasion pattern, metastasis and blood vessel density. Periostin mRNA and protein overexpression were frequently found in OSCC cases and Periostin expression was well correlated with the invasion pattern and metastasis. Moreover, blood vessel density of Periostin-positive cases was higher than those of Periostin-negative cases. Interestingly, recombinant Periostin enhanced capillary formation in vitro in a concentration-dependant manner. In summary, these findings suggest that Periostin may promote invasion and angiogenesis in OSCC, and that Periostin can be a strong marker for prediction of metastasis in oral cancer patients.
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MESH Headings
- Biomarkers, Tumor
- Carcinoma, Squamous Cell/blood supply
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/secondary
- Cell Adhesion/physiology
- Cell Adhesion Molecules/genetics
- Cell Adhesion Molecules/metabolism
- Cells, Cultured
- Disease Progression
- Endothelium, Vascular/cytology
- Endothelium, Vascular/metabolism
- Gene Expression Regulation, Neoplastic
- Humans
- Lymphatic Metastasis
- Mouth Neoplasms/blood supply
- Mouth Neoplasms/genetics
- Mouth Neoplasms/pathology
- Neoplasm Invasiveness/pathology
- Neovascularization, Pathologic/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Umbilical Veins/cytology
- Umbilical Veins/metabolism
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Affiliation(s)
- B S M S Siriwardena
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
- Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - Y Kudo
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
- E-mail:
| | - I Ogawa
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima University, Hiroshima 734-8553, Japan
| | - M Kitagawa
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima University, Hiroshima 734-8553, Japan
| | - S Kitajima
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - H Hatano
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - W M Tilakaratne
- Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - M Miyauchi
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - T Takata
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
- E-mail:
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Ito K, Kita M, Hosokawa K, Toyoda S, Kozuki M, Hayashi M, Takata T, Miyoshi Y, Koshiba H, Tabata T. Phase I-II trial of irinotecan (CPT) and cisplatin (P) as concurrent chemo-radiotherapy (CCRT) for patients (pts) with primary local advanced cervical cancer (LACC): A KCOG 0328 trial. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.15002] [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
15002 Background: Though CCRT based on P is now recommended in LACC, there is no standard regimen. We conducted a phase I-II trial of CPT and P as CCRT in pts with primary LACC. Methods: Eligibility criteria: histologically confirmed primary LACC as FIGO stage III to IVb by para-aortic lymphnode (PAN) metastasis, age 16–75 years, ECOG performance status <2, adequate bone marrow, hepatic and renal function, and written informed consent. Radiotherapy (RT) consisted of external beam 5040cGy in 28 fractions followed by single application brachytherapy, delivering 1800–2400 cGy to point A in 3–4 fractions. The doses of chemotherapy (CT) were set up as follows: dose level (DL) 0; CPT 20 mg/m2, P 30 mg/m2, DL1; CPT 25mg/m2, P 30 mg/m2, DL2; CPT 30 mg/m2, P 30 mg/m2, and the starting level was chosen DL1. CT was curried out weekly 5 cycles concurrently with RT. Toxicities were assessed according to NCI-CTC ver2.0J and responses were assessed according to RECIST. Results: So far 9 pts have been entered. The median age was 52 years (range 29 -73). All pts were FIGO stage IIIb and histrogically squamous cell carcinoma. Among the first 2 pts in DL1, 2 dose-limiting toxicities (DLT) were observed (delay of treatment due to grade 3 diarrhea and nausea) resulting in dose reduction to DL0. In the next 3 pts in DL0, no DLTs were observed and the study is ongoing as phase II. All pts were evaluable for response and toxicity. Eight complete (CR) and 1 partial response (PR) were seen at target region of cervix. But 2 pts showed progressive disease (PD) at non-target region of PAN, lung and liver, then overall response rate assessed by RECIST was 77.8% (CR 7, PD 2). Now the median follow up period is 16 months (range 6 -30). So far 2 pts of PD died and 3 pts relapsed. The median survival time is 10+ months (range 6+ -30+). Toxicity in DL0 was observed febrile neutropenia in 1 pt only. Conclusions: The CCRT with CPT and P in DL0 is feasible and shows promising activity in pts with primary LACC. No significant financial relationships to disclose.
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Affiliation(s)
- K. Ito
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - M. Kita
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - K. Hosokawa
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - S. Toyoda
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - M. Kozuki
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - M. Hayashi
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - T. Takata
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - Y. Miyoshi
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - H. Koshiba
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
| | - T. Tabata
- Kansai Rosai Hospital, Amagasaki, Hyogo, Japan; Kobe City General Hospital, Kobe, Japan; Kyoto Prefectural University School of Medicine, Kyoto, Japan; Nara Prefectural Nara Hospital, Nara, Japan; Mie University School of Medicine, Mie, Japan
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Kaneda T, Miyauchi M, Takekoshi T, Kitagawa S, Kitagawa M, Shiba H, Kurihara H, Takata T. Characteristics of periodontal ligament subpopulations obtained by sequential enzymatic digestion of rat molar periodontal ligament. Bone 2006; 38:420-6. [PMID: 16243014 DOI: 10.1016/j.bone.2005.08.021] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2004] [Revised: 07/13/2005] [Accepted: 08/17/2005] [Indexed: 11/18/2022]
Abstract
Periodontal ligament (PDL) consists of different cell populations in various differentiation stages. In the present study, we isolated cell populations from rat molar PDL by sequential enzymatic digestion and characterized growth potential and mineralization activity of the PDL subpopulations (PDL-SP) to throw light on the mechanism of PDL remodeling and, in its turn, periodontal tissue regeneration. PDL attached to extracted rat molars was digested 2 mg/ml collagenase and 0.25% trypsin at 37 degrees C for 30 min. Then four consecutive digestions were performed for 20 min each in a fresh digestive solution. The solutions were centrifuged to collect released cells and 5 PDL subpopulations (30M-, 50M-, 70M-, 90M-and 110M-PDL-SP) were obtained. Light microscopic observation showed that about a half of PDL in width attached on the root surface of extracted teeth and 30M-PDL-SP was considered to contain cells mainly from middle portion of PDL. Scanning electron microscopic examination indicated that 110M-PDL-SP was enriched by root lining cementoblastic cells. 30M-PDL-SP showed a high level of proliferative activity. Although the growth potential of a subpopulation decreased in PDL-SP toward the root surface, 110M-PDL-SP had a high proliferative activity equivalent to that of 30M-PDL-SP. Analyses of alkaline phosphatase (ALP) and mineralization activities showed that higher activities in PDL-SP toward the surface of roots and that 110M-PDL-SP had the highest activity of ALP and the largest number of mineralization nodules. The present study shows as supposed by previous studies on cell kinetics in PDL that subpopulations with larger growth potential were generally located in the middle portion of PDL and those with higher mineralization activities toward the surface of the roots. It is suggested, however, that a possible pathway of PDL cell turnover may exist within the PDL-SP on the root surface in addition to the generally recognized pathway from the middle area of PDL to root surface.
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Affiliation(s)
- T Kaneda
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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