76
|
Yasui T, Mabuchi Y, Toriumi H, Ebine T, Niibe K, Houlihan DD, Morikawa S, Onizawa K, Kawana H, Akazawa C, Suzuki N, Nakagawa T, Okano H, Matsuzaki Y. Purified Human Dental Pulp Stem Cells Promote Osteogenic Regeneration. J Dent Res 2015; 95:206-14. [PMID: 26494655 DOI: 10.1177/0022034515610748] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Human dental pulp stem/progenitor cells (hDPSCs) are attractive candidates for regenerative therapy because they can be easily expanded to generate colony-forming unit-fibroblasts (CFU-Fs) on plastic and the large cell numbers required for transplantation. However, isolation based on adherence to plastic inevitably changes the surface marker expression and biological properties of the cells. Consequently, little is currently known about the original phenotypes of tissue precursor cells that give rise to plastic-adherent CFU-Fs. To better understand the in vivo functions and translational therapeutic potential of hDPSCs and other stem cells, selective cell markers must be identified in the progenitor cells. Here, we identified a dental pulp tissue-specific cell population based on the expression profiles of 2 cell-surface markers LNGFR (CD271) and THY-1 (CD90). Prospectively isolated, dental pulp-derived LNGFR(Low+)THY-1(High+) cells represent a highly enriched population of clonogenic cells--notably, the isolated cells exhibited long-term proliferation and multilineage differentiation potential in vitro. The cells also expressed known mesenchymal cell markers and promoted new bone formation to heal critical-size calvarial defects in vivo. These findings suggest that LNGFR(Low+)THY-1(High+) dental pulp-derived cells provide an excellent source of material for bone regenerative strategies.
Collapse
|
77
|
Kuwahara K, Honda T, Yamamoto S, Nakagawa T, Kurotani K, Nanri A, Hayashi T, Mizoue T. Association of Muscle-Strengthening Training with Risk of Type 2 Diabetes in Japanese Men and Women. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
78
|
Morita M, Iwsaki R, Kawana H, Yoshida S, Nakagawa T, Miyamoto T. Smad4 in osteoclast reduce bone mass by inhibiting osteoclast differentiation. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
79
|
Makino-Oi A, Ishii Y, Hoshino T, Okubo N, Sugito H, Hosaka Y, Fukaya C, Nakagawa T, Saito A. Effect of periodontal surgery on oral health-related quality of life in patients who have completed initial periodontal therapy. J Periodontal Res 2015; 51:212-20. [DOI: 10.1111/jre.12300] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2015] [Indexed: 11/28/2022]
|
80
|
Nakagawa T, Wakabayashi H, Naito Y, Kato S, Iino T, Sudo A. FRI0306 Effects of Bisphosphonate for Pain-Related Behavior and Immunohistochemical Analysis in the Hind Limb-Unloaded Mouse Model of Disuse Osteoporosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
81
|
Kato S, Wakabayashi H, Nakagawa T, Naito Y, Sudo A. SAT0300 Teriparatide Inhibits Bone Loss and Improves Hyperalgesia in Ovariectomized Mice. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
82
|
Kitagawa T, Miaki H, Terada S, Osumi K, Nakagawa T. Prediction of maximum isometric muscle strength of knee extensors using ultrasonography. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.3632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
83
|
Saeki K, Watanabe M, Tsuboi M, Sugano S, Yoshitake R, Tanaka Y, Ong SM, Saito T, Matsumoto K, Fujita N, Nishimura R, Nakagawa T. Anti-tumour effect of metformin in canine mammary gland tumour cells. Vet J 2015; 205:297-304. [PMID: 25981932 DOI: 10.1016/j.tvjl.2015.04.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 04/07/2015] [Accepted: 04/19/2015] [Indexed: 01/06/2023]
Abstract
Metformin is an oral hypoglycaemic drug used in type 2 diabetes. Its pharmacological activity reportedly involves mitochondrial respiratory complex I, and mitochondrial respiratory complex inhibitors have a strong inhibitory effect on the growth of metastatic canine mammary gland tumour (CMGT) cell lines. It is hypothesised that metformin has selective anti-tumour effects on metastatic CMGT cells. The aim of this study was to investigate the in vitro effect of metformin on cell growth, production of ATP and reactive oxygen species (ROS), and the AMP-activated protein kinase (AMPK) mammalian target of rapamycin (mTOR) pathway in two CMGT clonal cell lines with different metastatic potential. In addition, transcriptome analysis was used to determine cellular processes disrupted by metformin and in vivo anti-tumour effects were examined in a mouse xenograft model. Metformin inhibited CMGT cell growth in vitro, with the metastatic clone (CHMp-5b) displaying greater sensitivity. ATP depletion and ROS elevation were observed to a similar extent in the metastatic and non-metastatic (CHMp-13a) cell lines after metformin exposure. However, subsequent AMPK activation and mTOR pathway inhibition were prominent only in metformin-insensitive non-metastatic cells. Microarray analysis revealed inhibition of cell cycle progression by metformin treatment in CHMp-5b cells, which was further confirmed by Western blotting and cell cycle analysis. Additionally, metformin significantly suppressed tumour growth in xenografted metastatic CMGT cells. In conclusion, metformin exhibited an anti-tumour effect in metastatic CMGT cells through AMPK-independent cell cycle arrest. Its mechanism of action differed in the non-metastatic clone, where AMPK activation and mTOR inhibition were observed.
Collapse
|
84
|
Sato H, Castrillon E, Cairns B, Bendixen K, Wang K, Nakagawa T, Wajima K, Svensson P. Intramuscular pH modulates glutamate-evoked masseter muscle pain magnitude in humans. Eur J Pain 2015; 20:106-15. [DOI: 10.1002/ejp.697] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2015] [Indexed: 11/10/2022]
|
85
|
Ozeki K, Higurashi Y, Kidera M, Nakagawa T. Note: Effect of hot liner in producing 40,48Ca beam from RIKEN 18-GHz electron cyclotron resonance ion source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:016114. [PMID: 25638141 DOI: 10.1063/1.4906595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In order to produce a high-intensity and stable (48)Ca beam from the RIKEN 18-GHz electron cyclotron resonance ion source, we have begun testing the production of a calcium beam using a micro-oven. To minimize the consumption rate of the material ((48)Ca), we introduced the "hot liner" method and investigated the effect of the liner on the material consumption rate. The micro-oven was first used to produce the (48)Ca beam for experiments in the RIKEN radioisotope beam factory, and a stable beam could be supplied for a long time with low consumption rate.
Collapse
|
86
|
Rahman M, Rahman M, Nakagawa T, Abdullah R, Khadijah WW, Akashi R. Effects of wet soya waste supplementation on the intake, growth and reproduction of goats fed Napier grass. Anim Feed Sci Technol 2015. [DOI: 10.1016/j.anifeedsci.2014.11.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
87
|
Itoguchi N, Nakagawa T, Murata Y, Li D, Shiba-Ishii A, Minami Y, Noguchi M. Immunocytochemical staining for stratifin and OCIAD2 in bronchial washing specimens increases sensitivity for diagnosis of lung cancer. Cytopathology 2014; 26:354-61. [DOI: 10.1111/cyt.12220] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2014] [Indexed: 02/03/2023]
|
88
|
Nabe T, Matsuya K, Akamizu K, Fujita M, Nakagawa T, Shioe M, Kida H, Takiguchi A, Wakamori H, Fujii M, Ishihara K, Akiba S, Mizutani N, Yoshino S, Chaplin DD. Roles of basophils and mast cells infiltrating the lung by multiple antigen challenges in asthmatic responses of mice. Br J Pharmacol 2014; 169:462-76. [PMID: 23472967 DOI: 10.1111/bph.12154] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 01/06/2013] [Accepted: 02/16/2013] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND AND PURPOSE Mast cell hyperplasia has been observed in the lungs of mice with experimental asthma, but few reports have studied basophils. Here, we attempted to discriminate and quantify mast cells and basophils in the lungs in a murine asthma model, determine if both cells were increased by multiple antigen challenges and assess the roles of those cells in asthmatic responses. EXPERIMENTAL APPROACH Sensitized Balb/c mice were intratracheally challenged with ovalbumin four times. Mast cells and basophils in enzymatically digested lung tissue were detected by flow cytometry. An anti-FcεRI monoclonal antibody, MAR-1, was i.p. administered during the multiple challenges. KEY RESULTS The numbers of both mast cells (IgE(+) C-kit(+) ) and basophils (IgE(+) C-kit(-) CD49b(+) ) increased in the lungs after three challenges. Treatment with MAR-1 completely abolished the increases; however, a late-phase increase in specific airway resistance (sRaw), and airway eosinophilia and neutrophilia were not affected by the treatment, although the early-phase increase in sRaw was suppressed. MAR-1 reduced antigen-induced airway IL-4 production. Basophils infiltrating the lung clearly produced IL-4 after antigen stimulation in vitro; however, histamine and murine mast cell protease 1 were not increased in the serum after the challenge, indicating that mast cell activation was not evoked. CONCLUSION AND IMPLICATIONS Both mast cells and basophils infiltrated the lungs by multiple intratracheal antigen challenges in sensitized mice. Neither mast cells nor basophils were involved in late-phase airway obstruction, although early-phase obstruction was mediated by basophils. Targeting basophils in asthma therapy may be useful for an early asthmatic response.
Collapse
|
89
|
Nakagawa T, Ohta K, Kubozono K, Ishida Y, Takechi M. Zoledronate inhibits RANKL-induced osteoclast differentiation via suppression of expression of NFATc1 and carbonic anhydrase 2. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
90
|
Iwasaki R, Miyamoto T, Morita M, Mori T, Nakagawa T, Kawana H. The both cytokines, TNFá and IL-1 are essential for the tumorigenesis of mouse osteosarcoma. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
91
|
Ono S, Ninomiya Y, Ohta K, Nakagawa T, Takamoto M, Takechi M. A Clinical Study of the Implant Stability Quotient and the Insertion Torque at Implants Placement. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
92
|
Maemondo M, Inoue A, Sugawara S, Mori Y, Oizumi S, Harada M, Taima K, Morikawa N, Ishida T, Kinoshita I, Watanabe H, Suzuki T, Nakagawa T, Saito R, Nukiwa T. Final Result of Randomized Phase 2 Trial Comparing Amrubicin (A) with Re-Challenge of Platinum Doublet (P) in Patients (Pts) with Sensitive-Relapsed Small-Cell Lung Cancer (Sclc): Njlcg0702. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu355.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
93
|
Dąbrowski M, Peixoto TRF, Pazgan M, Winkelmann A, Cinal M, Nakagawa T, Takagi Y, Yokoyama T, Bisio F, Bauer U, Yildiz F, Przybylski M, Kirschner J. Oscillations of the orbital magnetic moment due to d-band quantum well states. PHYSICAL REVIEW LETTERS 2014; 113:067203. [PMID: 25148348 DOI: 10.1103/physrevlett.113.067203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Indexed: 06/03/2023]
Abstract
The effect of electron confinement on the magnetocrystalline anisotropy of ultrathin bcc Fe films is explored by combining photoemission spectroscopy, x-ray magnetic circular dichroism, and magneto-optical Kerr effect measurements. Pronounced thickness-dependent variations in the magnetocrystalline anisotropy are ascribed to periodic changes in the density of states at the Fermi level, induced by quantization of d(xz), d(yz) out-of-plane orbitals. Our results reveal a direct correlation between quantum well states, the orbital magnetic moment, and the magnetocrystalline anisotropy.
Collapse
|
94
|
Yamasaki Y, Fukumoto I, Kumagai N, Ohta Y, Nakagawa T, Kawamukai M, Matsuda H. Continuous Chitosan Hydrolyzate Production by Immobilized Chitosanolytic Enzyme fromEnterobactersp. G-1. Biosci Biotechnol Biochem 2014; 56:1546-51. [PMID: 1369055 DOI: 10.1271/bbb.56.1546] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Chitosanolytic enzymes from Enterobacter sp. G-1 were immobilized on various carriers to continuously hydrolyze chitosan. Four different carriers were tested: FE-3901 (strong basic anion exchange resin, ionic binding), glutaraldehyde-treated FE-4612 (weak basic anion exchange resin, cross-linking), Chitopearl (chitosan beads), and alginate calcium. Glutaraldehyde-treated FE-4612 and Chitopearl immobilized more protein than the others. The enzyme immobilized on FE-3901 had the greatest activity. The activity of enzyme immobilized on FE-3901 decreased rapidly when exposed to a continuous flow of 1% chitosan. The enzyme immobilized with Chitopearl retained more than 50% of its original activity after 17 days, and the activity was fully restored by re-immobilization.
Collapse
|
95
|
Naito Y, Wakabayashi H, Nakagawa T, Iino T, Sudo A. SAT0498 Alendronate Inhibits Hyperalgesia and Suppresses Neuropeptide Markers of Pain in A Mouse Model of Osteoporosis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
96
|
Wakabayashi H, Hasegawa M, Niimi R, Naito Y, Nakagawa T, Sudo A. AB0245 Clinical Analysis of Preoperative Deep Vein Thrombosis Risk Factors in Patients with Total Hip Arthroplasty. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
97
|
Nakagawa T, Wakabayashi H, Naito Y, Sudo A. SAT0495 Evaluation of Pain-Related Behavior in the Hindlimb-Unloaded Mouse Model of Bone Loss. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
98
|
Uchiyama A, Furukawa K, Higurashi Y, Nakagawa T. Implementation of an operator intervention system for remote control of the RIKEN 28 GHz superconducting electron cyclotron resonance ion source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02A904. [PMID: 24593483 DOI: 10.1063/1.4825383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The control system for the RIKEN 28 GHz superconducting electron cyclotron resonance ion source (28 GHz SC-ECRIS) consists of a distributed control system based on the experimental physics and industrial control system. To maintain the beam quality for the long beam-service time at the radioactive isotope beam factory, beam tuning to prevent subtle changes in the 28 GHz SC-ECRIS conditions is required. Once this is achieved, it should then be possible to check conditions and operate the ion source at any time. We have designed a web-based operational interface to remotely control the ion source, but for access and control from several locations, suitable access security, policies, and methods are required. We thus implemented an operator intervention system that makes it possible to safely access the network externally with the permission of on-site accelerator operators in the control room.
Collapse
|
99
|
Higurashi Y, Ohnishi J, Ozeki K, Kidera M, Nakagawa T. Recent development of RIKEN 28 GHz superconducting electron cyclotron resonance ion source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02A953. [PMID: 24593532 DOI: 10.1063/1.4848976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Over the past two years, we have tried to improve the performance of the RIKEN superconducting electron cyclotron resonance ion source using several methods. For the production of U vapor, we chose the sputtering method because it is possible to install a large amount of material inside the plasma chamber and thus achieve long-term operation without a break, although it is assumed that the beam intensity is weaker than in the oven technique. We also used an aluminum chamber instead of a stainless steel one. Using these methods, we successfully produced ∼180 eμA of U(35+) and ∼230 eμA of U(33+) at the injected radio frequency (RF) power of ∼4 kW (28 GHz). Very recently, to further increase the beam intensity of U(35+), we have started to develop a high temperature oven and have successfully produced a highly charged U ion beam. In this contribution, we report on the beam intensity of highly charged U ions as a function of various parameters (RF power and sputtering voltage) and discuss the effects of these parameters on the beam stability in detail.
Collapse
|
100
|
Nakagawa T. Review of highly charged heavy ion production with electron cyclotron resonance ion source (invited). THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02A935. [PMID: 24593514 DOI: 10.1063/1.4842315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The electron cyclotron resonance ion source (ECRIS) plays an important role in the advancement of heavy ion accelerators and other ion beam applications worldwide, thanks to its remarkable ability to produce a great variety of intense highly charged heavy ion beams. Great efforts over the past decade have led to significant ECRIS performance improvements in both the beam intensity and quality. A number of high-performance ECRISs have been built and are in daily operation or are under construction to meet the continuously increasing demand. In addition, comprehension of the detailed and complex physical processes in high-charge-state ECR plasmas has been enhanced experimentally and theoretically. This review covers and discusses the key components, leading-edge developments, and enhanced ECRIS performance in the production of highly charged heavy ion beams.
Collapse
|