1
|
Uezono S, Kato T, Yamada Y, Yoshimoto M, Yamamoto N. Afferent and efferent connections of the secondary general visceral sensory nucleus in goldfish. J Comp Neurol 2024; 532:e25566. [PMID: 38104256 DOI: 10.1002/cne.25566] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 11/01/2023] [Accepted: 11/17/2023] [Indexed: 12/19/2023]
Abstract
The secondary general visceral sensory nucleus (SVN) receives ascending fibers from the commissural nucleus of Cajal (NCC), or the primary general visceral sensoru in the medulla oblongata of teleosts. However, the full set of fiber connections of the SVN have been studied only in the Nile tilapia. We have investigated the connections of the SVN in goldfish by tracer injection experiments to the nucleus. We paid special attention to the possible presence of spinal afferents, since the spinal cord projects to the lateral parabrachial nucleus, or the presumed homologue of SVN, in mammals. We found that the SVN indeed receives spinal projections. Spinal terminals were restricted to a region ventrolaterally adjacent to the terminal zone of NCC fibers, suggesting that the SVN can be subdivided into two subnuclei: the commissural nucleus-recipient (SVNc) and spinal-recipient (SVNsp) subnuclei. Tracer injections to the SVNc and SVNsp as well as reciprocal injections to the diencephalon revealed that both subnuclei project directly to diencephalic structures, such as the posterior thalamic nucleus and nucleus of lateral recess, although diencephalic projections of the SVNsp were rather sparse. The SVNsp appears to send fibers to more wide-spread targets in the preoptic area than the SVNc does. The SVNc projects to the telencephalon, while the SVNsp sends scarce or possibly no fibers to the telencephalon. Another notable difference was that the SVNsp gives rise to massive projections to the dorsal diencephalon (ventromedial thalamic, central posterior thalamic, and periventricular posterior tubercular nuclei). These differential connections of the subnuclei may reflect discrete functional significances of the general visceral sensory information mediated by the medulla oblongata and spinal cord.
Collapse
Affiliation(s)
- Shiori Uezono
- Laboratory of Fish Biology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Japan
- Department of Rehabilitation Sciences, University of Tokyo Health Sciences, Tama, Japan
| | - Takeshi Kato
- Laboratory of Fish Biology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Japan
| | - Yuusuke Yamada
- Laboratory of Fish Biology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Japan
| | - Masami Yoshimoto
- Department of Rehabilitation Sciences, University of Tokyo Health Sciences, Tama, Japan
| | - Naoyuki Yamamoto
- Laboratory of Fish Biology, Department of Animal Sciences, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Japan
| |
Collapse
|
2
|
Salles M, Horikawa F, Allegrini Jr S, Zangrando D, Yoshimoto M, Shinohara E. Clinical evaluation of the perception of post-trauma paresthesia in the mandible, using a biomimetic material: A preliminary study in humans. Heliyon 2023; 9:e18304. [PMID: 37520975 PMCID: PMC10382299 DOI: 10.1016/j.heliyon.2023.e18304] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/03/2023] [Accepted: 07/13/2023] [Indexed: 08/01/2023] Open
Abstract
There is a great effort from numerous research groups in the development of materials and therapeutic strategies for the functional recovery of patients who have suffered peripheral nerve injuries (PNI). In an article in vivo, the formation of a nerve bridge was observed, reconnecting the distal and proximal stumps, in the sciatic nerve of rats, indicating the effective participation of the biomaterial in the recovery of peripheral nerve injuries. For the current pilot study, 15 cases of multiple fractures of the mandible, with involvement of the inferior alveolar nerve (IAN) were selected and studied: JC (control cases) n = 6 with conventional treatment, and JT (treated cases) n = 9, with the use of biomimetic biomaterial. The evaluation of the return to sensitivity was measured through a self-assessment, where the patients assigned scores from 0 to 10, where zero (0) represented the complete absence of sensitivity and ten (10) the normality of the perception of local sensitivity. Patients were evaluated from the preoperative period to the 360th day. The statistical results obtained by the t-Student, Shapiro-Wilk normality and non-parametric One-Way ANOVA tests indicated statistically significant differences (p < 0.005; 0.005 e 0.5 respectively), between the two treatments, which were reflected in the clinical results observed, we also calculate the size of the effect represented by ϵ2, calculated by Cohen's d. The results indicate a great difference between the treatments performed,ϵ2 = 1.00. In the 6 cases followed up in the JC group, four remained with a significant deficit until the end of the evaluations and two indicated the remission of the lack of sensitivity in this period. In the JT group, in 28 days, all cases indicated complete remission of the lack of sensitivity with healing concentration. In one of the cases where there was a complete rupture of the mental nerve, the (score-10) was observed in 60 days. The observed results indicate the existence of a statistical significance between the groups and an important relationship when using the biomimetic biomaterial during the recovery of the perception of sensitivity in polytraumatized patients, compatible with the results observed in laboratory animals, which may indicate its clinical feasibility in the reduction of sequelae in PNI.
Collapse
Affiliation(s)
| | - F.K. Horikawa
- Depart. Oral and Maxillofac. Surg. Hospital Regional de Osasco SUS, São Paulo, Brazil
| | - S. Allegrini Jr
- Program in Biodentistry, Ibirapuera University (UNIB), São Paulo, SP, 04661 100, Brazil
- Católica Portuguesa University (UCP), Viseu, Portugal
| | - D. Zangrando
- Depart. Oral and Maxillofac. Surg. Hospital Regional de Osasco SUS, São Paulo, Brazil
- Department of Surgery Stomatology Pathology and Radiology of the Faculty of Dentistry of Bauru, University of São Paulo (FOB-USP) Bauru, São Paulo, Brazil
| | | | - E.H. Shinohara
- Depart. Oral and Maxillofac. Surg. Hospital Regional de Osasco SUS, São Paulo, Brazil
| |
Collapse
|
3
|
Fujita M, Ishikawa Y, Ukai M, Kanauchi H, Koike T, Tamura H, Hosomi K, Yamamoto T, Ekawa H, Hayakawa S, Nakazawa K, Yoshida J, Yoshimoto M, Kasagi A, Nishimura N, Hayashi K. Results of the 𝚵 − atomic X-ray measurement in J-PARC E07. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202227103005] [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: 11/10/2022] Open
Abstract
Ξ− atomic X-ray spectroscopy is one of the most useful methods for investigation of the Ξ-nucleus strong interaction. A serious problem in the measurement is the significant background coming from in-flight Ξ− decay. For the first Ξ− atomic X-ray spectroscopy experiment, a novel method of identifying stopped Ξ− events using nuclear emulsion was developed to reject background photons from in-flight Ξ− decay. We succeeded in reducing the background to 1/170 by this method employing coincidence measurements using the nuclear emulsion and X-ray detectors.
Collapse
|
4
|
Yamamoto N, Yoshimoto M. Obituary: Hironobu Ito, M.D., Ph.D. (1939–2020). J Comp Neurol 2021. [DOI: 10.1002/cne.25016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Naoyuki Yamamoto
- Laboratory of Fish Biology, Graduate School of Bioagricultural Sciences Nagoya University Nagoya Japan
| | - Masami Yoshimoto
- Department of Rehabilitation Sciences University of Tokyo Health Sciences Tokyo Japan
| |
Collapse
|
5
|
Hayakawa SH, Agari K, Ahn JK, Akaishi T, Akazawa Y, Ashikaga S, Bassalleck B, Bleser S, Ekawa H, Endo Y, Fujikawa Y, Fujioka N, Fujita M, Goto R, Han Y, Hasegawa S, Hashimoto T, Hayakawa T, Hayata E, Hicks K, Hirose E, Hirose M, Honda R, Hoshino K, Hoshino S, Hosomi K, Hwang SH, Ichikawa Y, Ichikawa M, Imai K, Inaba K, Ishikawa Y, Ito H, Ito K, Jung WS, Kanatsuki S, Kanauchi H, Kasagi A, Kawai T, Kim MH, Kim SH, Kinbara S, Kiuchi R, Kobayashi H, Kobayashi K, Koike T, Koshikawa A, Lee JY, Ma TL, Matsumoto SY, Minakawa M, Miwa K, Moe AT, Moon TJ, Moritsu M, Nagase Y, Nakada Y, Nakagawa M, Nakashima D, Nakazawa K, Nanamura T, Naruki M, Nyaw ANL, Ogura Y, Ohashi M, Oue K, Ozawa S, Pochodzalla J, Ryu SY, Sako H, Sato S, Sato Y, Schupp F, Shirotori K, Soe MM, Soe MK, Sohn JY, Sugimura H, Suzuki KN, Takahashi H, Takahashi T, Takeda T, Tamura H, Tanida K, Theint AMM, Tint KT, Toyama Y, Ukai M, Umezaki E, Watabe T, Watanabe K, Yamamoto TO, Yang SB, Yoon CS, Yoshida J, Yoshimoto M, Zhang DH, Zhang Z. Observation of Coulomb-Assisted Nuclear Bound State of Ξ^{-}-^{14}N System. Phys Rev Lett 2021; 126:062501. [PMID: 33635678 DOI: 10.1103/physrevlett.126.062501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
In an emulsion-counter hybrid experiment performed at J-PARC, a Ξ^{-} absorption event was observed which decayed into twin single-Λ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Ξ^{-}+^{14}N→_{Λ}^{10}Be+_{Λ}^{5}He. For the binding energy of the Ξ^{-} hyperon in the Ξ^{-}-^{14}N system a value of 1.27±0.21 MeV was deduced. The energy level of Ξ^{-} is likely a nuclear 1p state which indicates a weak ΞN-ΛΛ coupling.
Collapse
Affiliation(s)
- S H Hayakawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Agari
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Korea
| | - T Akaishi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - Y Akazawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - S Ashikaga
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - B Bassalleck
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - S Bleser
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - H Ekawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - Y Endo
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Fujikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Fujioka
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Fujita
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - R Goto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Han
- Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - S Hasegawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hashimoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hayakawa
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - E Hayata
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Hicks
- Department of Physics & Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - E Hirose
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - M Hirose
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Honda
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Hoshino
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - S Hoshino
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - K Hosomi
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S H Hwang
- Korea Research Institute of Standards and Science, Daejeon 34113, Korea
| | - Y Ichikawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - M Ichikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - K Imai
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Inaba
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - H Ito
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Ito
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - W S Jung
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kanatsuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Kanauchi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Kasagi
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Kawai
- Center for Advanced Photonics, RIKEN, Wako 351-0198, Japan
| | - M H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kinbara
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - R Kiuchi
- Institute of High Energy Physics, Beijing 100049, China
| | - H Kobayashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Kobayashi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Koike
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Koshikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - J Y Lee
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - T L Ma
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - S Y Matsumoto
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - M Minakawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Miwa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A T Moe
- Department of Physics, Lashio University, Lashio 06301, Myanmar
| | - T J Moon
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - M Moritsu
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Nagase
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Nakada
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - M Nakagawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - D Nakashima
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Nakazawa
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Nanamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M Naruki
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - A N L Nyaw
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - Y Ogura
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ohashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Oue
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - S Ozawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - J Pochodzalla
- Helmholtz Institute Mainz, 55099 Mainz, Germany
- Institut fur Kernphysik, Johannes Gutenberg-Universitat, 55099 Mainz, Germany
| | - S Y Ryu
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - H Sako
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S Sato
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - Y Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - F Schupp
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - K Shirotori
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - M M Soe
- Department of Physics, University of Yangon, Yangon 11041, Myanmar
| | - M K Soe
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - J Y Sohn
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - H Sugimura
- Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K N Suzuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Tamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - A M M Theint
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - K T Tint
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Toyama
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ukai
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - E Umezaki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Watabe
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - K Watanabe
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T O Yamamoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S B Yang
- Department of Physics, Korea University, Seoul 02841, Korea
| | - C S Yoon
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - J Yoshida
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Yoshimoto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - D H Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - Z Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| |
Collapse
|
6
|
Gong T, Habara H, Sumioka K, Yoshimoto M, Hayashi Y, Kawazu S, Otsuki T, Matsumoto T, Minami T, Abe K, Aizawa K, Enmei Y, Fujita Y, Ikegami A, Makiyama H, Okazaki K, Okida K, Tsukamoto T, Arikawa Y, Fujioka S, Iwasa Y, Lee S, Nagatomo H, Shiraga H, Yamanoi K, Wei MS, Tanaka KA. Direct observation of imploded core heating via fast electrons with super-penetration scheme. Nat Commun 2019; 10:5614. [PMID: 31819056 PMCID: PMC6901506 DOI: 10.1038/s41467-019-13574-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 11/08/2019] [Indexed: 11/09/2022] Open
Abstract
Fast ignition (FI) is a promising approach for high-energy-gain inertial confinement fusion in the laboratory. To achieve ignition, the energy of a short-pulse laser is required to be delivered efficiently to the pre-compressed fuel core via a high-energy electron beam. Therefore, understanding the transport and energy deposition of this electron beam inside the pre-compressed core is the key for FI. Here we report on the direct observation of the electron beam transport and deposition in a compressed core through the stimulated Cu Kα emission in the super-penetration scheme. Simulations reproducing the experimental measurements indicate that, at the time of peak compression, about 1% of the short-pulse energy is coupled to a relatively low-density core with a radius of 70 μm. Analysis with the support of 2D particle-in-cell simulations uncovers the key factors improving this coupling efficiency. Our findings are of critical importance for optimizing FI experiments in a super-penetration scheme.
Collapse
Affiliation(s)
- T Gong
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.,Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, People's Republic of China
| | - H Habara
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
| | - K Sumioka
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - M Yoshimoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Hayashi
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Kawazu
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Otsuki
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Matsumoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Abe
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Aizawa
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Enmei
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Fujita
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - A Ikegami
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Makiyama
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Okazaki
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Okida
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Tsukamoto
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Arikawa
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Fujioka
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Iwasa
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Lee
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Nagatomo
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Shiraga
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Yamanoi
- Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - M S Wei
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY, 14623-1299, USA
| | - K A Tanaka
- Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka, 565-0871, Japan. .,Extreme Light Infrastructure: Nuclear Physics, 30 Reatorului, Magurele-Bucharest, 077125, Romania.
| |
Collapse
|
7
|
Abstract
High-risk human papillomaviruses (HPVs) possess transforming activity leading to development of the cancer, including oropharyngeal, anal, penile, vulvar, vaginal, and cervical cancer. The stability of E6 is essential for its complete function as an oncoprotein. Using the yeast two-hybrid system, we identified ubiquitin-specific protease 15 (USP15) as an HPV16 E6-interacting protein. USP15 cleaves polyubiquitin chains of HPV16 E6 and/or ubiquitin precursors. Our results indicate that USP15 could increase the level of HPV16 E6 by inhibiting E6 degradation. USP15 inhibited the degradation of HPV16 E6 in dose-dependent manner. In contrast, catalytically inactive mutants of USP15 had a reduced inhibitory effect on E6 degradation. In particular, USP15 mutants of all three cysteine boxes and the NHL mutant of the KRF box had a drastically reduced inhibitory effect on HPV16 E6 degradation. In addition, HPV16 E6 mRNA was not induced by USP15; therefore, HPV16 E6 appears to be post-translationally regulated. These results suggest that USP15 has the ability to stabilize E6 as a deubiquitinating enzyme, and as an oncoprotein affects biological functions in infected human cells.
Collapse
|
8
|
Arata Y, Nishinaka H, Tahara D, Yoshimoto M. Heteroepitaxial growth of single-phase ε-Ga2O3 thin films on c-plane sapphire by mist chemical vapor deposition using a NiO buffer layer. CrystEngComm 2018. [DOI: 10.1039/c8ce01128a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, single-phase ε-gallium oxide (Ga2O3) thin films were heteroepitaxially grown on c-plane sapphire substrates.
Collapse
Affiliation(s)
- Y. Arata
- Department of Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - H. Nishinaka
- Faculty of Electrical Engineering and Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - D. Tahara
- Department of Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - M. Yoshimoto
- Faculty of Electrical Engineering and Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| |
Collapse
|
9
|
Nishinaka H, Miyauchi N, Tahara D, Morimoto S, Yoshimoto M. Incorporation of indium into ε-gallium oxide epitaxial thin films grown via mist chemical vapour deposition for bandgap engineering. CrystEngComm 2018. [DOI: 10.1039/c7ce02103h] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Epitaxial ε-gallium oxide (Ga2O3) thin films incorporated with In were successfully grown by mist chemical vapour deposition (CVD) on c-plane sapphire substrates for bandgap tuning.
Collapse
Affiliation(s)
- H. Nishinaka
- Faculty of Electrical Engineering and Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - N. Miyauchi
- Department of Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - D. Tahara
- Department of Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - S. Morimoto
- Department of Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| | - M. Yoshimoto
- Faculty of Electrical Engineering and Electronics
- Kyoto Institute of Technology
- Kyoto 606-8585
- Japan
| |
Collapse
|
10
|
Pearson J, Meagher P, Tsuchimochi H, Edgley A, Yoshimoto M, Waddingham M, Chen Y, Mirabito Colafella K, Hilliard L, Umetani K, Widdop R, Shirai M, Denton K. P3473Effect of insulin resistance on compound 21 mediated coronary microvascular dilation in female rats in vivo. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3473] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
11
|
Imura K, Yamamoto N, Yoshimoto M, Endo M, Funakoshi K, Ito H. Fiber Connections of the Caudal Corpus Cerebelli, with Special Reference to the Intrinsic Circuitry, in a Teleost (Oreochromis niloticus). Brain Behav Evol 2017; 89:15-32. [PMID: 28231568 DOI: 10.1159/000455962] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 01/03/2017] [Indexed: 11/19/2022]
Abstract
The caudal part of the corpus cerebelli of Nile tilapia can be divided into dorsal and ventral regions. The granule cell layer of the dorsal (dGL) and ventral (vGL) regions of the caudal corpus cerebelli is known to receive indirect inputs from the telencephalon relayed by the nucleus paracommissuralis. The descending pathways are topographically organized, and the dGL and vGL receive inputs from different dorsal telencephalic parts. The caudal corpus cerebelli, in turn, projects extracerebellar efferents. However, it remains unknown how the descending telencephalic inputs are processed within the cerebellum. Therefore, the present study investigated intrinsic connections of the caudal corpus cerebelli by injecting neural tracers into the molecular layer of dorsal and ventral regions. Injections of tracers into the ventral molecular layer resulted in labeled cells in the vGL and the ganglionic layer of the ventral corpus. The axonal trajectories from labeled cells in the ganglionic layer were analyzed in detail via single-axon reconstructions, which suggested that the terminal portions were confined to the ganglionic layer of the dorsal corpus. No labeled terminals were observed outside the caudal corpus cerebelli. Tracer applications to the dorsal molecular layer resulted in labeled cells not only in the ganglionic layer and the granule cell layer of the dorsal corpus but also in the ganglionic layer of the ventral corpus. The latter finding confirms the presence of intrinsic projections from the ventral region to the dorsal region in the caudal corpus cerebelli. We further revealed that the intrinsic projection neurons are Purkinje cells by immunohistochemistry for zebrin II (aldolase C), which is a marker of Purkinje cells, combined with tracer injections into the dorsal corpus. Unlike injections into the ventral corpus, injections into the dorsal corpus resulted in labeled terminals in extracerebellar structures, such as the nucleus of the medial longitudinal fascicle and reticular formation. The present study suggests that indirect inputs from different telencephalic parts received and processed by distinct regions of caudal corpus cerebelli are sent out of the corpus through the efferent neurons in the dorsal corpus.
Collapse
Affiliation(s)
- Kosuke Imura
- Department of Neuroanatomy, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | | | | | | | | | | |
Collapse
|
12
|
Tan G, Shimada K, Nozawa Y, Kaneko S, Urakami T, Koyama K, Komura M, Matsuda A, Yoshimoto M. Atomic step-and-terrace surface of polyimide sheet for advanced polymer substrate engineering. Nanotechnology 2016; 27:295603. [PMID: 27284690 DOI: 10.1088/0957-4484/27/29/295603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Typical thermostable and flexible polyimide polymers exhibit many excellent properties such as strong mechanical and chemical resistance. However, in contrast to single-crystal substrates like silicon or sapphire, polymers mostly display disordered and rough surfaces, which may result in instability and degradation of the interfaces between thin films and polymer substrates. As a step toward the development of next-generation polymer substrates, we here report single-atom-layer imprinting onto the polyimide sheets, resulting in an ultrasmooth 0.3 nm high atomic step-and-terrace surface on the polyimides. The ultrasmooth polymer substrates are expected to be applied to the fabrication of nanostructures such as superlattices, nanowires, or quantum dots in nanoscale-controlled electronic devices. We fabricate smooth and atomically stepped indium tin oxide transparent conducting oxide thin films on the imprinted polyimide sheets for future use in organic-based optoelectronic devices processed with nanoscale precision. Furthermore, toward 2D polymer substrate nanoengineering, we demonstrate nanoscale letter writing on the atomic step-and-terrace polyimide surface via atomic force microscopy probe scratching.
Collapse
Affiliation(s)
- G Tan
- Department of Innovative & Engineered Materials, Tokyo Institute of Technology, Yokohama 226-8502, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Nakano K, Idani H, Asami S, Ookawa H, Yoshimoto M, Ito A, Monden K, Kurose Y, Hioki M, Ishii T, Sadamori H, Oono S, Kin H, Takakura N. Topic: Abdominal Wall Hernia - Abdominal wall closure. Hernia 2015; 19 Suppl 1:S342. [PMID: 26518836 DOI: 10.1007/bf03355382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K Nakano
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - H Idani
- Department of Surgery, Hiroshima City Hospital, Hiroshima, Japan
| | - S Asami
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - H Ookawa
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - M Yoshimoto
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - A Ito
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - K Monden
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - Y Kurose
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - M Hioki
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - T Ishii
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - H Sadamori
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - S Oono
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - H Kin
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| | - N Takakura
- Department of Surgery, Fukuyama City Hospital, Fukuyama, Japan
| |
Collapse
|
14
|
Ishikawa Y, Inohaya K, Yamamoto N, Maruyama K, Yoshimoto M, Iigo M, Oishi T, Kudo A, Ito H. The Parapineal Is Incorporated into the Habenula during Ontogenesis in the Medaka Fish. Brain Behav Evol 2015; 85:257-70. [DOI: 10.1159/000431249] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 05/06/2015] [Indexed: 11/19/2022]
Abstract
The parapineal is present in many teleost families, while it is absent in several others. To find out why the parapineal is absent at adult stages in the latter families, the development of the epithalamus was examined in the medaka fish (Oryzias latipes). For this purpose, a green fluorescent protein-transgenic medaka line, in which the pineal complex (pineal and parapineal) is visible fluorescently, was used. We found that a distinct parapineal was present in the roof plate at early developmental stages. Subsequently, however, the parapineal and the associated roof plate began to be incorporated into the habenula between embryonic stages 28 and 29. Between embryonic stages 29 and 30, the entire parapineal was incorporated into the habenula. That is, the parapineal became a small caudomedial region (termed the ‘parapineal domain') within the left habenula in the majority of embryos, resulting in the left-sided asymmetry of the epithalamus. Thereby the left habenula became larger and more complex than its right counterpart. In the minority of embryos, the parapineal was incorporated into the right habenula or into the habenulae on both sides. In the majority of embryos, the parapineal domain projected a fiber bundle to a subnucleus (termed the ‘rostromedial subnucleus') in the left habenula. The rostromedial subnucleus sent axons, through the left fasciculus retroflexus, to the rostral region of the left half of the interpeduncular nucleus. We further found that the ratio of the left-sided phenotype was temperature dependent and decreased in embryos raised at a high temperature. The present study is the first demonstration that the supposed lack of a distinct parapineal in adult teleost fishes is due to ontogenetic incorporation into the habenula.
Collapse
|
15
|
Naka T, Asada T, Yoshimoto M, Katsuragawa T, Suzuki Y, Terada Y, Takeuchi A, Uesugi K, Tawara Y, Umemoto A, Kimura M. Analysis system of submicron particle tracks in the fine-grained nuclear emulsion by a combination of hard x-ray and optical microscopy. Rev Sci Instrum 2015; 86:073701. [PMID: 26233390 DOI: 10.1063/1.4926350] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Analyses of nuclear emulsion detectors that can detect and identify charged particles or radiation as tracks have typically utilized optical microscope systems because the targets have lengths from several μm to more than 1000 μm. For recent new nuclear emulsion detectors that can detect tracks of submicron length or less, the current readout systems are insufficient due to their poor resolution. In this study, we developed a new system and method using an optical microscope system for rough candidate selection and the hard X-ray microscope system at SPring-8 for high-precision analysis with a resolution of better than 70 nm resolution. Furthermore, we demonstrated the analysis of submicron-length tracks with a matching efficiency of more than 99% and position accuracy of better than 5 μm. This system is now running semi-automatically.
Collapse
Affiliation(s)
- T Naka
- Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Aichi 464-8602, Japan
| | - T Asada
- Department of Physics, Graduated School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - M Yoshimoto
- Department of Physics, Graduated School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - T Katsuragawa
- Department of Physics, Graduated School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - Y Suzuki
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Hyogo 679-5198, Japan
| | - Y Terada
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Hyogo 679-5198, Japan
| | - A Takeuchi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Hyogo 679-5198, Japan
| | - K Uesugi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Hyogo 679-5198, Japan
| | - Y Tawara
- Department of Physics, Graduated School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - A Umemoto
- Department of Physics, Graduated School of Science, Nagoya University, Nagoya 464-8602, Japan
| | - M Kimura
- Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Aichi 464-8602, Japan
| |
Collapse
|
16
|
Saito M, Kaneto H, Okuda H, Kodaira J, Hagiwara T, Kozawa H, Yoshimoto M, Yamashita K, Arimura Y, Shinomura Y. Serum HER2 in Gastric Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.3] [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: 11/12/2022] Open
|
17
|
Otani S, Yoshimoto M, Tokuyasu N, Endo K, Takano S, Ikeguchi M, Yamamoto N. PP088-MON THE ASSOCIATION BETWEEN ARTIFICIAL HYDRATION AND SYMPTOMS IN TERMINALLY ILL CANCER PATIENTS. Clin Nutr 2013. [DOI: 10.1016/s0261-5614(13)60399-4] [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]
|
18
|
Yoshimoto M, Koyama T. Sequestration of Carbon Dioxide with Simultaneous Formation of Fine Calcium Carbonate Particles in Liposomes. Chem Eng Technol 2013. [DOI: 10.1002/ceat.201200412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
19
|
Ishikawa Y, Yamamoto N, Yoshimoto M, Ito H. The primary brain vesicles revisited: are the three primary vesicles (forebrain/midbrain/hindbrain) universal in vertebrates? Brain Behav Evol 2012; 79:75-83. [PMID: 22237006 DOI: 10.1159/000334842] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 10/28/2011] [Indexed: 11/19/2022]
Abstract
It is widely held that three primary brain vesicles (forebrain, midbrain, and hindbrain vesicles) develop into five secondary brain vesicles in all vertebrates (von Baer's scheme). We reviewed previous studies in various vertebrates to see if this currently accepted scheme of brain morphogenesis is a rule applicable to vertebrates in general. Classical morphological studies on lamprey, shark, zebrafish, frog, chick, Chinese hamster, and human embryos provide only partial evidence to support the existence of von Baer's primary vesicles at early stages. Rather, they suggest that early brain morphogenesis is diverse among vertebrates. Gene expression and fate map studies on medaka, chick, and mouse embryos show that the fates of initial brain vesicles do not accord with von Baer's scheme, at least in medaka and chick brains. The currently accepted von Baer's scheme of brain morphogenesis, therefore, is not a universal rule throughout vertebrates. We propose here a developmental hourglass model as an alternative general rule: Brain morphogenesis is highly conserved at the five-brain vesicle stage but diverges more extensively at earlier and later stages. This hypothesis does not preclude the existence of deep similarities in molecular prepatterns at early stages.
Collapse
Affiliation(s)
- Yuji Ishikawa
- National Institute of Radiological Sciences, Chiba, Japan.
| | | | | | | |
Collapse
|
20
|
Pinto P, Yoshimoto M, Simão R, Munir S, Siqueira J, Alves M. Guided bone regeneration with polypropylene membrane – histological analysis. Int J Oral Maxillofac Surg 2011. [DOI: 10.1016/j.ijom.2011.07.378] [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]
|
21
|
Yoshimoto M, Takebayashi T, Kawaguchi S, Tsuda H, Ida K, Wada T, Suzuki D, Yamashita T. Minimally Invasive Technique for Decompression of Lumbar Foraminal Stenosis Using a Spinal Microendoscope: Technical Note. ACTA ACUST UNITED AC 2011; 54:142-6. [DOI: 10.1055/s-0031-1279716] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
22
|
Kaya M, Wada T, Nagoya S, Kawaguchi S, Yamashita T, Yamamoto N, Yoshimoto M, Okada F, Ishii S. TNP-470 Suppresses the Tumorigenicity of HT1080 Fibrosarcoma Tumor Through the Inhibition of VEGF Secretion From the Tumor Cells. Sarcoma 2011; 5:197-202. [PMID: 18521314 PMCID: PMC2395463 DOI: 10.1080/13577140120099182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Angiogenesis inhibitors are a novel class of promising therapeutic agents for treating cancer. TNP-470, a systemic analogue
of fumagillin, is an angiogenesis inhibitor capable of suppressing the tumorigenicity in several animal models even though
the mechanisms of action have not been completely clarified. In the current study, we investigated the effects of TNP-470
on human fibrosarcoma cells in vivo and in vitro. The administration of TNP-470 could suppress the tumorigenicity of
HT1080 fibrosarcoma tumor. The conditioned medium from HT1080 fibrosarcoma cells treated with TNP-470 inhibited
the proliferation and migration of human endothelial cell line, HUVEC and ECV304. The concentration of VEGF in the
conditioned medium from HT1080 cells treated with TNP-470 was lower than that of the cells without TNP-470 treatment,
indicating that TNP-470 downregulates the secretion of VEGF from HT1080 cells. These findings strongly suggest that the
direct action of TNP-470 on sarcoma cells inhibits angiogenesis through the downregulation of VEGF secretion and this
angiogenesis suppression resulted in the inhibition of tumorigenicity of HT1080 fibrosarcoma tumo.
Collapse
Affiliation(s)
- M Kaya
- Department of Orthopedic Surgery Sapporo Medical University School of Medicine S-1, W-16, Chuo-ku, Sapporo Hokkaido 060-8543 Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Joshua AM, Evans A, Squire J, Yoshimoto M, Ludkovski O, Tan S, Dobi A, Furusato B, Petrovics G, Srivastava S, Sesterhenn I. Evaluation of PTEN and TMPRSS2-ERG abnormalities in prostate cancer by FISH and immunohistochemistry to address intra- and intertissue heterogeneity and disease progression. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
24
|
Joshua AM, Shen E, Yoshimoto M, Marrano P, Zielenska M, Evans AJ, Van der Kwast T, Squire JA. Topographical analysis of telomere length and correlation with genomic instability in whole mount prostatectomies. Prostate 2011; 71:778-90. [PMID: 21031437 DOI: 10.1002/pros.21294] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Accepted: 09/26/2010] [Indexed: 11/06/2022]
Abstract
BACKGROUND Many critical events in prostatic carcinogenesis appear to relate to the emergence of genomic instability. Characteristic genomic abnormalities such as 8p loss, 8q gain, trisomy 7, and PTEN microdeletions may provide selective advantages to increase neoplastic transformation. Evidence suggests that telomere dysfunction is a plausible mechanism for some of these abnormalities on the basis of the break-fusion-bridge cycle that can lead to manifestations of genomic instability. METHODS In this study, we correlate telomere length measured by quantitative FISH in various prostatic histologies with markers of genomic instability and immunohistochemical measures of proliferation and oxidative stress. RESULTS We find that telomere shortening is correlated with abnormalities on chromosome 8, but not with trisomy 7 or abnormalities of the PTEN locus. There are associations with C-MYC aberrations in stroma with greater proximity to cancer and a correlation between telomere length in a number of prostatic histologies and the adjacent stroma, suggesting the importance of microenvironmental effects on telomere maintenance in the prostate. This finding was also supported by the finding of the correlation between telomere attrition and the levels of oxidative stress as measured by malondialdehyde staining in HPIN lesions close to cancer. CONCLUSIONS Telomere attrition in the prostate gland is associated with particular genomic aberrations that contribute to the genomic instability characteristic of prostatic carcinogenesis. Correlations between various histologies and adjacent stroma telomere length suggest it is also may reveal microenvironmental effects within the prostate gland. Oxidative stress may contribute to telomere attrition in HPIN close to cancer.
Collapse
Affiliation(s)
- A M Joshua
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Abstract
ABSTRACTLaser MBE is a process especially useful for epitaxial layer-by-layer growth of ceramic thin films directly from sintered ceramic targets. By employing high vacuum MBE conditions, the process has a restriction in the controllability of chemical composition, e.g. nonstoi chiometry in oxides and nitrides, as compared with conventional pulsed laser deposition, but instead gains the possibility of in situ monitoring of surface reaction on an atomic scale by RHEED. Ever since our first success in observing RHEED intensity oscillation for CeO2 film growth on Si(l11), we have verified the molecular layer epitaxy by laser MBE for perovskite oxides (SrTiO3, BaTiO3, SrVO3 ,etc) and infinite-layer cuprates MCuO2 (M= Sr, Ba, Ca) on SrTiO3 substrates as well as for oxide and nitride films on Si substrates. Key factors to design the laser MBE system, operation parameters, and recent experimental results are presented and discussed.
Collapse
|
26
|
Salles MB, Konig Jr B, Allegrini Jr S, Yoshimoto M, Martins MT, Coelho PG. Identification of the nuclear factor kappa-beta (NF-kB) in cortical of mice Wistar using Technovit 7200 VCR. Med Oral Patol Oral Cir Bucal 2011; 16:e124-31. [DOI: 10.4317/medoral.16.e124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 02/17/2010] [Indexed: 11/05/2022] Open
|
27
|
Veiga-Castelli L, Rosa e Silva J, Meola J, Ferriani R, Yoshimoto M, Santos S, Squire J, Martelli L. Genomic alterations detected by comparative genomic hybridization in ovarian endometriomas. Braz J Med Biol Res 2010; 43:799-805. [DOI: 10.1590/s0100-879x2010007500072] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2010] [Accepted: 07/19/2010] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | - J. Meola
- Universidade de São Paulo; Universidade de São Paulo, Brasil
| | | | | | | | | | | |
Collapse
|
28
|
Yoshimoto M, Yamamoto N. Ascending general visceral sensory pathways from the brainstem to the forebrain in a cichlid fish, Oreochromis (Tilapia) niloticus. J Comp Neurol 2010; 518:3570-603. [DOI: 10.1002/cne.22415] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
29
|
Martin JW, Yoshimoto M, Ludkovski O, Thorner PS, Zielenska M, Squire JA, Nuin PAS. Analysis of segmental duplications, mouse genome synteny and recurrent cancer-associated amplicons in human chromosome 6p21-p12. Cytogenet Genome Res 2010; 128:199-213. [PMID: 20453501 DOI: 10.1159/000308353] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2009] [Indexed: 11/19/2022] Open
Abstract
It has been proposed that regions of microhomology in the human genome could facilitate genomic rearrangements, copy number transitions, and rapid genomic change during tumor progression. To investigate this idea, this study examines the role of repetitive sequence elements, and corresponding syntenic mouse genomic features, in targeting cancer-associated genomic instability of specific regions of the human genome. Automated database-mining algorithms designed to search for frequent copy number transitions and genomic breakpoints were applied to 2 publicly-available online databases and revealed that 6p21-p12 is one of the regions of the human genome most frequently involved in tumor-specific alterations. In these analyses, 6p21-p12 exhibited the highest frequency of genomic amplification in osteosarcomas. Analysis of repetitive elements in regions of homology between human chromosome 6p and the syntenic regions of the mouse genome revealed a strong association between the location of segmental duplications greater than 5 kilobase-pairs and the position of discontinuities at the end of the syntenic region. The presence of clusters of segmental duplications flanking these syntenic regions also correlated with a high frequency of amplification and genomic alteration. Collectively, the experimental findings, in silico analyses, and comparative genomic studies presented here suggest that segmental duplications may facilitate cancer-associated copy number transitions and rearrangements at chromosome 6p21-p12. This process may involve homology-dependent DNA recombination and/or repair, which may also contribute towards the overall plasticity of the human genome.
Collapse
Affiliation(s)
- J W Martin
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, Ont., Canada
| | | | | | | | | | | | | |
Collapse
|
30
|
Hirata M, Takao S, Okamoto Y, Yamashita S, Kawaguchi Y, Takami M, Furusawa H, Abe C, Sakamoto J, Yoshimoto M. 472 A phase II trial of oral combination chemotherapy with capecitabine and cyclophosphamide (XC) in metastatic breast cancer. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)70493-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
31
|
Ishikawa Y, Yamamoto N, Yasuda T, Yoshimoto M, Ito H. Morphogenesis of the Medaka Cerebellum, with Special Reference to the Mesencephalic Sheet, a Structure Homologous to the Rostrolateral Part of Mammalian Anterior Medullary Velum. Brain Behav Evol 2010; 75:88-103. [PMID: 20332601 DOI: 10.1159/000300566] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Accepted: 01/21/2010] [Indexed: 11/19/2022]
Affiliation(s)
- Yuji Ishikawa
- National Institute of Radiological Sciences, Inage-ku, Chiba, Japan.
| | | | | | | | | |
Collapse
|
32
|
Allegrini S, Allegrini MRF, Yoshimoto M, Konig B, Mai R, Fanghanel J, Gedrange T. Soft tissue integration in the neck area of titanium implants--an animal trial. J Physiol Pharmacol 2008; 59 Suppl 5:117-132. [PMID: 19075332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/18/2008] [Accepted: 10/15/2008] [Indexed: 05/27/2023]
Abstract
Dental implant materials are required to enable good apposition of bone and soft tissues. They must show sufficient resistance to chemical, physical and biological stress in the oral cavity to achieve good long-term outcomes. A critical issue is the apposition of the soft tissues, as they have provided a quasi-physiological closure of oral cavity. The present experiment was performed to study the peri-implant tissue response to non-submerged (1-stage) implant installation procedures. Two different implants types (NobelBiocare, NobelReplace Tapered Groovy 4.3 x 10 mm and Replace Select Tapered TiU RP 4.3 x 10mm) were inserted into the right and left sides of 8 domestic pigs (Sus scrofa domestica) mandibles, between canines and premolars and immediately provided with a ceramic crown. Primary implant stability was determined using ressonance frequency analysis. Soft tissue parameters were assessed: sulcus depth (SDI) and junctional epithelium (JE). Following 70 days of healing, jaw sections were processed for histology and histomorphometric examination. Undecalcified histological sections demonstrated osseointegration with direct bone contact. The soft tissue parameters revealed no significant differences between the two implant types. The peri-implant soft tissues appear to behave similarly in both implant types.
Collapse
Affiliation(s)
- S Allegrini
- Department of Orthodontics, Preventive and Pediatric Dentistry, Ernst-Moritz-Arndt University Greifswald, Germany
| | | | | | | | | | | | | |
Collapse
|
33
|
Selvarajah S, Yoshimoto M, Ludkovski O, Park PC, Bayani J, Thorner P, Maire G, Squire JA, Zielenska M. Genomic signatures of chromosomal instability and osteosarcoma progression detected by high resolution array CGH and interphase FISH. Cytogenet Genome Res 2008; 122:5-15. [PMID: 18931480 DOI: 10.1159/000151310] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2008] [Indexed: 11/19/2022] Open
Abstract
Osteosarcoma (OS) is characterized by an unstable karyotype which typically has a heterogeneous pattern of complex chromosomal abnormalities. High-resolution array comparative genomic hybridization (CGH) in combination with interphase fluorescence in situ hybridization (FISH) analyses provides a complete description of genomic imbalances together with an evaluation of the contribution of cell-to-cell variation to copy number changes. There have been no analyses to date documenting genomic signatures consistent with chromosomal instability mechanisms in OS tumors using array CGH. In this study, we utilized high-resolution array CGH to identify and characterize recurrent signatures of genomic imbalances using ten OS tumors. Comparison between the genomic profiles identified tumor groups with low, intermediate and high levels of genomic imbalance. Bands 6p22-->p21, 8q24 and 17p12--> p11.2 were consistently involved in high copy gain or amplification events. Since these three locations have been consistently associated with OS oncogenesis, FISH probes from each cytoband were used to derive an index of cellular heterogeneity for copy number within each region. OS with the highest degree of genomic imbalance also exhibited the most extreme cell-to-cell copy number variation. Significantly, the three OS with the most imbalance and genomic copy number heterogeneity also had the poorest response to preoperative chemotherapy. This genome wide analysis is the first utilizing oligonucleotide array CGH in combination with FISH analysis to derive genomic signatures of chromosomal instability in OS tumors by studying genomic imbalance and intercellular heterogeneity. This comprehensive genomic screening approach provides important insights concerning the mechanisms responsible for generating complex genomes. The resulting phenotypic diversity can generate tumors with a propensity for an aggressive disease course. A better understanding of the underlying mechanisms leading to OS tumor development could result in the identification of prognostic markers and therapeutic targets.
Collapse
Affiliation(s)
- S Selvarajah
- Department of Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Canada
| | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Yasuda T, Yoshimoto M, Maeda K, Matsumoto A, Maruyama K, Ishikawa Y. Rapid and simple method for quantitative evaluation of neurocytotoxic effects of radiation on developing medaka brain. J Radiat Res 2008; 49:533-540. [PMID: 18654045 DOI: 10.1269/jrr.08030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We describe a novel method for rapid and quantitative evaluation of the degree of radiation-induced apoptosis in the developing brain of medaka (Oryzias latipes). Embryos at stage 28 were irradiated with 1, 2, 3.5, and 5 Gy x-ray. Living embryos were stained with a vital dye, acridine orange (AO), for 1-2 h, and whole-mount brains were examined under an epifluorescence microscope. From 7 to 10 h after irradiation with 5 Gy x-ray, we found two morphologically different types of AO-stained structures, namely, small single nuclei and rosette-shaped nuclear clusters. Electron microscopy revealed that these two distinct types of structures were single apoptotic cells with condensed nuclei and aggregates of apoptotic cells, respectively. From 10 to 30 h after irradiation, a similar AO-staining pattern was observed. The numbers of AO-stained rosette-shaped nuclear clusters and AO-stained single nuclei increased in a dose-dependent manner in the optic tectum. We used the number of AO-stained rosette-shaped nuclear clusters/optic tectum as an index of the degree of radiation-induced brain cell death at 20-24 h after irradiation. The results showed that the number of rosette-shaped nuclear clusters/optic tectum in irradiated embryos exposed to 2 Gy or higher doses was highly significant compared to the number in nonirradiated control embryos, whereas no difference was detected at 1 Gy. Thus, the threshold dose for brain cell death in medaka embryos was taken as being between 1-2 Gy, which may not be so extraordinarily large compared to those for rodents and humans. The results show that medaka embryos are useful for quantitative evaluation of developmental neurocytotoxic effects of radiation.
Collapse
Affiliation(s)
- Takako Yasuda
- Environmental Radiation Effects Research Group, Research Center for Radiation Protection, National Institute of Radiological Sciences, Chiba, Japan.
| | | | | | | | | | | |
Collapse
|
35
|
Haruki R, Sakata O, Yamada T, Kanaizuka K, Makiura R, Akita Y, Yoshimoto M, Kitagawa H. Structural study of an iron oxalate and a copper rubeanate layer on an ultra-smooth sapphire c-face. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308087205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
36
|
Yoshimoto M, Sato M, Yoshimoto N, Nakao K. Liposomal Encapsulation of Yeast Alcohol Dehydrogenase with Cofactor for Stabilization of the Enzyme Structure and Activity. Biotechnol Prog 2008; 24:576-82. [DOI: 10.1021/bp070392e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
37
|
Nishio T, Takamura N, Nishii R, Tokunaga J, Yoshimoto M, Kawai K. Influences of haemodialysis on the binding sites of human serum albumin: possibility of an efficacious administration plan using binding inhibition. Nephrol Dial Transplant 2008; 23:2304-10. [DOI: 10.1093/ndt/gfn002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
38
|
Ishikawa Y, Yasuda T, Kage T, Takashima S, Yoshimoto M, Yamamoto N, Maruyama K, Takeda H, Ito H. Early Development of the Cerebellum in Teleost Fishes: A Study Based on Gene Expression Patterns and Histology in the Medaka Embryo. Zoolog Sci 2008; 25:407-18. [DOI: 10.2108/zsj.25.407] [Citation(s) in RCA: 16] [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] [Received: 01/16/2008] [Accepted: 02/07/2008] [Indexed: 11/17/2022]
|
39
|
Koizumi M, Koyama M, Tada K, Nishimura S, Miyagi Y, Makita M, Yoshimoto M, Iwase T, Horii R, Akiyama F, Saga T. The feasibility of sentinel node biopsy in the previously treated breast. Eur J Surg Oncol 2008; 34:365-8. [PMID: 17532172 DOI: 10.1016/j.ejso.2007.04.007] [Citation(s) in RCA: 43] [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] [Subscribe] [Scholar Register] [Received: 01/29/2007] [Accepted: 04/18/2007] [Indexed: 11/16/2022] Open
Abstract
PURPOSE Sentinel lymph node biopsy (SNB) has been a standard technique in early breast cancer. However, it is not clear that the SNB procedure can be applied to second breast cancer or recurrence occurring in the previously treated breast. The purpose of this study was to clarify the feasibility of the SNB procedure in breast cancer occurring in the previously treated breast, and to investigate the factors related to altered lymphatic flow. PATIENTS AND METHODS Between April 2004 and December 2006, 1490 patients underwent the breast SNB procedure. Among them, 31 patients had a history of previous treatments in the same breast. Recent excision biopsy cases were not included in this group. All patients had previous breast-conserving surgery in the same breast. Sixteen patients had axillary dissection, 3 had SNB, and 12 had no axillary treatment. Ten patients had received radiation therapy to the breast and axilla. Visualization of axillary nodes, internal mammary nodes and contralateral axillary nodes was evaluated and compared with pathological results. RESULTS Axillary nodes were visualized in 23 patients, internal mammary nodes in 7 patients, and contralateral axillary nodes in 7 patients. The patients with previous axillary dissection exhibited altered lymph node distribution, but did not show involvement of contralateral axillary nodes. Visualization of contralateral axillary nodes occurred in 7 of the 10 patients with previous irradiation to breast irrespective of axillary dissection. Twenty-eight patients underwent SNB, 4 of whom showed cancer-positive nodes. Three patients were cancer-positive in non-ipsilateral axillary nodes (one patient showed positive opposite axillary node and two patients showed positive internal mammary nodes). CONCLUSION Previous axillary dissection or irradiation to the breast greatly influences lymphatic flow. Irradiation to the breast may be a strong factor for the visualization of contralateral axillary nodes. Despite the frequent alteration of lymphatic flow, SNB seems to be feasible in secondary or recurrent breast cancer patients.
Collapse
Affiliation(s)
- M Koizumi
- Diagnostic Imaging Group, Institute for Molecular Imaging, National Institutes of Radiological Sciences, Chiba, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Esfahanian M, Wehrwein EA, Yoshimoto M, Osborn JW, Novotny M, Babankova D, Swain GM, Kreulen DL. Analysis of Cardiac Norepinephrine (NE) Transporter (NET) mRNA after removal of the stellate ganglia. FASEB J 2008. [DOI: 10.1096/fasebj.22.1_supplement.1230.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - M Yoshimoto
- PhysiologyUniversity of MinnesotaMinneapolisMN
| | - J W Osborn
- PhysiologyUniversity of MinnesotaMinneapolisMN
| | - M Novotny
- ChemistryMichigan State UniversityEast LansingMI
| | - D Babankova
- ChemistryMichigan State UniversityEast LansingMI
| | - G M Swain
- ChemistryMichigan State UniversityEast LansingMI
| | | |
Collapse
|
41
|
Wehrwein EA, Bloch K, Spitsbergen JM, Yoshimoto M, Osborn JW, Kreulen DL. Alternative sources of cardiac norepinephrine (NE) transporter (NET). FASEB J 2008. [DOI: 10.1096/fasebj.22.1_supplement.1230.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - K Bloch
- Minnesota State Univ MoorheadMoorheadMN
| | | | - M Yoshimoto
- PhysiologyUniversity of MinnesotaMinneapolisMN
| | - J W Osborn
- PhysiologyUniversity of MinnesotaMinneapolisMN
| | - D L Kreulen
- PhysiologyMichigan State UniversityEast LansingMI
| |
Collapse
|
42
|
|
43
|
Haruki R, Sakata O, Yamada T, Kanaizuka K, Makiura R, Akita Y, Yoshimoto M, Kitagawa H. Structural Evaluation of an Iron Oxalate Complex Layer Grown on an Ultra-smooth Sapphire (0001) Surface by a Wet Method. ACTA ACUST UNITED AC 2008. [DOI: 10.14723/tmrsj.33.629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
44
|
Yoshimoto M, Monden M, Jiang Z, Nakao K. Permeabilization of Phospholipid Bilayer Membranes Induced by Gas-Liquid Flow in an Airlift Bubble Column. Biotechnol Prog 2007; 23:1321-6. [DOI: 10.1021/bp0700206] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
45
|
Yoshimoto M, Cunha I, Coudry R, Fonseca F, Torres C, Soares F, Squire J. MP-17.17: FISH analysis of 107 prostate cancers shows that PTEN genomic deletion is associated with poor clinical outcome. Urology 2007. [DOI: 10.1016/j.urology.2007.06.504] [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: 10/22/2022]
|
46
|
Yoshimoto M, Cunha IW, Coudry RA, Fonseca FP, Torres CH, Soares FA, Squire JA. FISH analysis of 107 prostate cancers shows that PTEN genomic deletion is associated with poor clinical outcome. Br J Cancer 2007; 97:678-85. [PMID: 17700571 PMCID: PMC2360375 DOI: 10.1038/sj.bjc.6603924] [Citation(s) in RCA: 218] [Impact Index Per Article: 12.8] [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: 01/20/2023] Open
Abstract
This study examines the clinical impact of PTEN genomic deletions using fluorescence in situ hybridisation (FISH) analysis of 107 prostate cancers, with follow-up information covering a period of up to 10 years. Tissue microarray analysis using interphase FISH indicated that hemizygous PTEN losses were present in 42/107 (39%) of prostatic adenocarcinomas, with a homozygous PTEN deletion observed in 5/107 (5%) tumours. FISH analysis using closely linked probes centromeric and telomeric to the PTEN indicated that subband microdeletions accounted for ∼70% genomic losses. Kaplan–Meier survival analysis of PTEN genomic losses (hemizygous and homozygous deletion vs not deleted) identified subgroups with different prognosis based on their time to biochemical relapse after surgery, and demonstrated significant association between PTEN deletion and an earlier onset of disease recurrence (as determined by prostate-specific antigen levels). Homozygous PTEN deletion was associated with a much earlier onset of biochemical recurrence (P=0.002). Furthermore, PTEN loss at the time of prostatectomy correlated with clinical parameters of more advanced disease, such as extraprostatic extension and seminal vesicle invasion. Collectively, our data indicates that haploinsufficiency or PTEN genomic loss is an indicator of more advanced disease at surgery, and is predictive of a shorter time to biochemical recurrence of disease.
Collapse
Affiliation(s)
- M Yoshimoto
- Division of Applied Molecular Oncology, Ontario Cancer Institute, Princess Margaret Hospital, Toronto, Ontario, M5G 2M9, Canada
| | - I W Cunha
- Departamento de Patologia, Centro de Tratamento e Pesquisa, Hospital do Câncer, A.C. Camargo, São Paulo, 01509 010, Brazil
| | - R A Coudry
- Departamento de Patologia, Centro de Tratamento e Pesquisa, Hospital do Câncer, A.C. Camargo, São Paulo, 01509 010, Brazil
| | - F P Fonseca
- Serviço de Urologia, Departamento de Cirurgia Pélvica, Hospital do Câncer, A.C. Camargo, São Paulo, 01509 010, Brazil
| | - C H Torres
- Instituto de Matemática e Estatística, Universidade de São Paulo, São Paulo, 01509 010, Brazil
| | - F A Soares
- Departamento de Patologia, Centro de Tratamento e Pesquisa, Hospital do Câncer, A.C. Camargo, São Paulo, 01509 010, Brazil
| | - J A Squire
- Division of Applied Molecular Oncology, Ontario Cancer Institute, Princess Margaret Hospital, Toronto, Ontario, M5G 2M9, Canada
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, M5G 2M9, Canada
- Division of Applied Molecular Oncology, Ontario Cancer Institute, Princess Margaret Hospital. 610 University Avenue, Room 9-721, Toronto, Ontario, M5G 2M9, Canada. E-mail:
| |
Collapse
|
47
|
Watanabe T, Sano M, Takashima S, Kitaya T, Tokuda Y, Yoshimoto M, Kono N, Nakagami K, Iwata H, Ohashi Y. Oral uracil-tegafur (UFT) compared to classical cyclophosphamide/methotrexate/5-fluorouracil (CMF) as postoperative chemotherapy in patients with node-negative, high-risk breast cancer (BC): Results of the national surgical adjuvant study for breast cancer. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
551 Background: Oral UFT and classical (c-) CMF provide similar response rates in patients (pts) with metastatic BC (CMF: 36.1%, UFT: 39.3%). In a postoperative setting, these regimens showed comparable effectiveness in terms of odds reductions in relapse-free survival (RFS) (CMF: 23.5%, UFT: 21.0%), but data fromrandomized controlled trials (RCT) is not sufficient. Methods: We conducted a RCT to study the efficacy and toxicity of 2-year oral UFT as compared with c-CMF in pts with Stage I - IIIA node-negative, pathologically high-risk BC in a postoperative setting. In the CMF arm, pts received 6 cycles of c-CMF (C: 100 mg po, days 1 to 14, M: 40 mg/m2 iv, days 1 and 8, F: 500 mg/m2 iv, days 1 and 8). In the UFT arm, pts received UFT at 300 mg/m2/day po for 2 years. Tamoxifen (20 mg/day) was administered for 5 years if ER or PgR was positive or unknown. The primary endpoint was RFS. Overall survival (OS), toxicity, and quality of life were secondary endpoints. The statistical hypothesis was non- inferiority of UFT in terms of RFS (95% CI of HR: <1.30). Results: From October 1996 through March 2001, a total of 733 pts were enrolled of whom 707 pts were analyzed. Patients’ characteristics were well balanced between the two arms. Median follow-up time was 6.1 years. At 5 years the RFS rate was 88.2% in the CMF arm and 87.7% in the UFT arm, and OS rates were 96.0% and 96.1%, respectively. Hazard ratios of the UFT arm to the CMF arm were 1.05 (95% CI: 0.69–1.57) for RFS and 0.88 (95% CI: 0.48–1.63) for OS. The toxicity profile differed between the groups. Major grade 3 or higher adverse events were as follows: leukopenia (CMF: 3.1%, UFT: 0.3%, p=0.006), neutropenia (CMF: 5.5%, UFT: 3.5%, p=0.27), elevation of total bilirubin (CMF: 0.3%, UFT: 5.5%, p=0.00001), elevation of GOT (CMF: 1.4%, UFT: 5.7%, p=0.004), elevation of GPT (CMF: 5.1%, UFT: 8.9%, p=0.08), nausea/vomiting (CMF: 2.8%, UFT: 1.1%, p=0.18) and diarrhea, (CMF: 0.3%, UFT: 2.0%, p=0.04). Conclusions: Our results suggest that UFT is a promising alternative to CMF as postoperative adjuvant chemotherapy in women with node-negative, high-risk breast cancer. No significant financial relationships to disclose.
Collapse
Affiliation(s)
- T. Watanabe
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - M. Sano
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - S. Takashima
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - T. Kitaya
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - Y. Tokuda
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - M. Yoshimoto
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - N. Kono
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - K. Nakagami
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - H. Iwata
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| | - Y. Ohashi
- Hamamatsu Oncology Center, Hamamatsu, Japan; Niigata Cancer Center Hospital, Niigata, Japan; National Shikoku Cancer Center Hospital, Matsuyama, Japan; Intl. Univ. of Health and Welfare Atami Hospital, Atami, Japan; Tokai University Hospital, Isehara, Japan; Intl. Univ. of Health and Welfare Mita Hospital, Tokyo, Japan; Tokyo Medical University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center, Nagoya, Japan; University of Tokyo, Tokyo, Japan
| |
Collapse
|
48
|
Yang CY, Xue HG, Yoshimoto M, Ito H, Yamamoto N, Ozawa H. Fiber connections of the corpus glomerulosum pars rotunda, with special reference to efferent projection pattern to the inferior lobe in a percomorph teleost, tilapia (Oreochromis niloticus). J Comp Neurol 2007; 501:582-607. [PMID: 17278137 DOI: 10.1002/cne.21261] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [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: 12/22/2022]
Abstract
Fiber connections of the corpus glomerulosum pars rotunda (GR) in a teleost, tilapia Oreochromis niloticus, were studied by biotinylated dextran amine injections into the GR and inferior lobe. After tracer injections into the GR, major groups of labeled somata were found bilaterally in the cortical nucleus and ipsilaterally in the nucleus intermedius. Numerous labeled terminals were found ipsilaterally in the central nucleus, nucleus of lateral recess, and diffuse nucleus (NDLI) of the inferior lobe. Some other connections were also elucidated in the present study, although these were less abundant. Notably, efferent projections to the inferior lobe were not evenly distributed within each lobar nucleus. Labeled terminals were confined to the cell body zone of central nucleus and the outer cell-sparse layer of the nucleus of lateral recess. The rostrolateral portion of NDLI and ventrolateral portion of middle to caudal NDLI received few GR fibers, the rostromedial portion of NDLI a moderate density of fibers, and the rest of the nucleus numerous fibers. These different portions of the NDLI, to some extent, also differed in other afferent and efferent connections, suggesting regional specialization of the nucleus. Furthermore, restricted injections to the lobar nuclei suggest different efferent projections of the component cells of the GR: large and small cells. The large cells project only to the central nucleus, whereas the small cells project to the NDLI and nucleus of lateral recess. Therefore, the two types of GR cells appear to constitute parallel pathways from the pretectum to the inferior lobe.
Collapse
Affiliation(s)
- Chun-Ying Yang
- Department of Anatomy and Neurobiology, Nippon Medical School, Tokyo 113-8602, Japan
| | | | | | | | | | | |
Collapse
|
49
|
Yamamoto N, Ishikawa Y, Yoshimoto M, Xue HG, Bahaxar N, Sawai N, Yang CY, Ozawa H, Ito H. A New Interpretation on the Homology of the Teleostean Telencephalon Based on Hodology and a New Eversion Model. Brain Behav Evol 2007; 69:96-104. [PMID: 17230017 DOI: 10.1159/000095198] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Various hypotheses regarding the homology of the teleostean telencephalon with that of other vertebrates have been proposed to date. However, a firm conclusion on this issue has yet to be drawn. We propose here a new hypothesis with a new eversion model. Our hodological data and the analysis of dorsal telencephalic organization in adult cyprinids suggest that: (1) the area dorsalis pars posterior corresponds to the lateral pallium; (2) ventral region of area dorsalis pars lateralis to the medial pallium; (3) pars medialis, dorsal region of pars lateralis, pars dorsalis, and pars centralis of the area dorsalis to the dorsal pallium, and (4) nucleus taenia to the ventral pallium. We propose in a three dimensional model that the eversion process occurs not only dorsolaterally but also caudolaterally. We consider that the caudally directed component dominates for ventral zones of the pallium, or the lateral and ventral pallia; and the periventricular surface of these zones shift caudally, laterally, and then rostrally in teleosts with pronounced telencephalic eversion. This new model fits well with the putative homology based on hodology and the organization of telencephalic divisions in the adult brain.
Collapse
Affiliation(s)
- Naoyuki Yamamoto
- Department of Anatomy and Neurobiology, Nippon Medical School, Tokyo, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Abstract
Modern teleosts have more copies of developmental regulatory genes than other vertebrates, probably due to a whole genome duplication that occurred specifically at the base of the lineage of ray-finned fishes. The genome duplication generates duplicated genes (including their regulatory regions), and one of the duplicates might become redundant and free from selective pressures. These redundant genes might be more easily mutated during evolution. Brain morphogenesis is a process that is dependent on a large genetic program in which a subprogram for the regionalization of the brain is coupled with that for cell-proliferation control. If beneficial mutations took place in key genes within the genetic program for brain morphogenesis, it might result in the enhancement of region-specific cell proliferation and cell survival in the corresponding brain subdivisions. This mechanism might account for the appearance of various forms of teleost brains, which have been preserved under selection pressure in diverse environments. It is conceivable that variously modified brains might evolve under the conditions of natural selection so that the brains help fit the teleost species for diverse ecological niches.
Collapse
Affiliation(s)
- Hironobu Ito
- Department of Anatomy and Neurobiology, Nippon Medical School, Tokyo, Japan.
| | | | | | | |
Collapse
|