1
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Takakura Y, Machida M, Terada N, Katsumi Y, Kawamura S, Horie K, Miyauchi M, Ishikawa T, Akiyama N, Seki T, Miyao T, Hayama M, Endo R, Ishii H, Maruyama Y, Hagiwara N, Kobayashi TJ, Yamaguchi N, Takano H, Akiyama T, Yamaguchi N. Mitochondrial protein C15ORF48 is a stress-independent inducer of autophagy that regulates oxidative stress and autoimmunity. Nat Commun 2024; 15:953. [PMID: 38296961 PMCID: PMC10831050 DOI: 10.1038/s41467-024-45206-1] [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: 03/21/2023] [Accepted: 01/18/2024] [Indexed: 02/02/2024] Open
Abstract
Autophagy is primarily activated by cellular stress, such as starvation or mitochondrial damage. However, stress-independent autophagy is activated by unclear mechanisms in several cell types, such as thymic epithelial cells (TECs). Here we report that the mitochondrial protein, C15ORF48, is a critical inducer of stress-independent autophagy. Mechanistically, C15ORF48 reduces the mitochondrial membrane potential and lowers intracellular ATP levels, thereby activating AMP-activated protein kinase and its downstream Unc-51-like kinase 1. Interestingly, C15ORF48-dependent induction of autophagy upregulates intracellular glutathione levels, promoting cell survival by reducing oxidative stress. Mice deficient in C15orf48 show a reduction in stress-independent autophagy in TECs, but not in typical starvation-induced autophagy in skeletal muscles. Moreover, C15orf48-/- mice develop autoimmunity, which is consistent with the fact that the stress-independent autophagy in TECs is crucial for the thymic self-tolerance. These results suggest that C15ORF48 induces stress-independent autophagy, thereby regulating oxidative stress and self-tolerance.
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Affiliation(s)
- Yuki Takakura
- Department of Molecular Cardiovascular Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Moeka Machida
- Department of Molecular Cardiovascular Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Natsumi Terada
- Department of Molecular Cardiovascular Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Yuka Katsumi
- Department of Molecular Cardiovascular Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Seika Kawamura
- Department of Molecular Cardiovascular Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Kenta Horie
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Maki Miyauchi
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan
| | - Tatsuya Ishikawa
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan
| | - Nobuko Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Takao Seki
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Takahisa Miyao
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan
| | - Mio Hayama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan
| | - Rin Endo
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan
| | - Hiroto Ishii
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan
| | - Yuya Maruyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan
| | - Naho Hagiwara
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Tetsuya J Kobayashi
- Institute of Industrial Science, The University of Tokyo, Tokyo, 153-8505, Japan
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Hiroyuki Takano
- Department of Molecular Cardiovascular Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan.
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, 230-0045, Japan.
| | - Noritaka Yamaguchi
- Department of Molecular Cardiovascular Pharmacology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan.
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan.
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan.
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2
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Ishikawa T, Horie K, Takakura Y, Ohki H, Maruyama Y, Hayama M, Miyauchi M, Miyao T, Hagiwara N, Kobayashi TJ, Akiyama N, Akiyama T. T-cell receptor repertoire analysis of CD4-positive T cells from blood and an affected organ in an autoimmune mouse model. Genes Cells 2023; 28:929-941. [PMID: 37909727 DOI: 10.1111/gtc.13079] [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: 09/05/2023] [Revised: 10/15/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
One hallmark of some autoimmune diseases is the variability of symptoms among individuals. Organs affected by the disease differ between patients, posing a challenge in diagnosing the affected organs. Although numerous studies have investigated the correlation between T cell antigen receptor (TCR) repertoires and the development of infectious and immune diseases, the correlation between TCR repertoires and variations in disease symptoms among individuals remains unclear. This study aimed to investigate the correlation of TCRα and β repertoires in blood T cells with the extent of autoimmune signs that varies among individuals. We sequenced TCRα and β of CD4+ CD44high CD62Llow T cells in the blood and stomachs of mice deficient in autoimmune regulator (Aire) (AIRE KO), a mouse model of human autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy. Data analysis revealed that the degree of similarity in TCR sequences between the blood and stomach varied among individual AIRE KO mice and reflected the extent of T cell infiltration in the stomach. We identified a set of TCR sequences whose frequencies in blood might correlate with extent of the stomach manifestations. Our results propose a potential of using TCR repertoires not only for diagnosing disease development but also for diagnosing affected organs in autoimmune diseases.
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Affiliation(s)
- Tatsuya Ishikawa
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Kenta Horie
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yuki Takakura
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Houko Ohki
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Yuya Maruyama
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Mio Hayama
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Maki Miyauchi
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Takahisa Miyao
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Naho Hagiwara
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | | | - Nobuko Akiyama
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Taishin Akiyama
- Laboratory of Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
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3
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Horie K, Namiki K, Kinoshita K, Miyauchi M, Ishikawa T, Hayama M, Maruyama Y, Hagiwara N, Miyao T, Murata S, Kobayashi TJ, Akiyama N, Akiyama T. Acute irradiation causes a long-term disturbance in the heterogeneity and gene expression profile of medullary thymic epithelial cells. Front Immunol 2023; 14:1186154. [PMID: 38022666 PMCID: PMC10652284 DOI: 10.3389/fimmu.2023.1186154] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
The thymus has the ability to regenerate from acute injury caused by radiation, infection, and stressors. In addition to thymocytes, thymic epithelial cells in the medulla (mTECs), which are crucial for T cell self-tolerance by ectopically expressing and presenting thousands of tissue-specific antigens (TSAs), are damaged by these insults and recover thereafter. However, given recent discoveries on the high heterogeneity of mTECs, it remains to be determined whether the frequency and properties of mTEC subsets are restored during thymic recovery from radiation damage. Here we demonstrate that acute total body irradiation with a sublethal dose induces aftereffects on heterogeneity and gene expression of mTECs. Single-cell RNA-sequencing (scRNA-seq) analysis showed that irradiation reduces the frequency of mTECs expressing AIRE, which is a critical regulator of TSA expression, 15 days after irradiation. In contrast, transit-amplifying mTECs (TA-mTECs), which are progenitors of AIRE-expressing mTECs, and Ccl21a-expressing mTECs, were less affected. Interestingly, a detailed analysis of scRNA-seq data suggested that the proportion of a unique mTEC cluster expressing Ccl25 and a high level of TSAs was severely decreased by irradiation. In sum, we propose that the effects of acute irradiation disrupt the heterogeneity and properties of mTECs over an extended period, which potentially leads to an impairment of thymic T cell selection.
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Affiliation(s)
- Kenta Horie
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Kano Namiki
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Kyouhei Kinoshita
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Maki Miyauchi
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
| | - Tatsuya Ishikawa
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Mio Hayama
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Yuya Maruyama
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Naho Hagiwara
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
| | - Takahisa Miyao
- YCI Laboratory for Immunological Transcriptomics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Shigeo Murata
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | | | - Nobuko Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center of Integrative Medical Sciences, Yokohama, Japan
- Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
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4
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Takeuchi S, Miyauchi M, Kadota T, Fukuda M, Nishiyama K. Cerebral infarction after anaphylactic shock due to cold-induced urticaria. QJM 2023; 116:461-462. [PMID: 36786405 PMCID: PMC10250077 DOI: 10.1093/qjmed/hcad022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Indexed: 02/15/2023] Open
Affiliation(s)
- S Takeuchi
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
| | - M Miyauchi
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
| | - T Kadota
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
| | - M Fukuda
- Department of Neurosurgery, Kochi Health Sciences Center, Kochi-city, Kochi, Japan
| | - K Nishiyama
- From the Department of Disaster and Emergency Medicine, Kochi Medical School, Nankoku-city, Kochi, Japan
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5
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Ishikawa T, Ishii H, Miyao T, Horie K, Miyauchi M, Akiyama N, Akiyama T. Sample Preparation and Integrative Data Analysis of a Droplet-based Single-Cell ATAC-sequencing Using Murine Thymic Epithelial Cells. Bio Protoc 2023; 13:e4588. [PMID: 36789086 PMCID: PMC9901465 DOI: 10.21769/bioprotoc.4588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/30/2022] [Accepted: 12/20/2022] [Indexed: 01/06/2023] Open
Abstract
Accessible chromatin regions modulate gene expression by acting as cis-regulatory elements. Understanding the epigenetic landscape by mapping accessible regions of DNA is therefore imperative to decipher mechanisms of gene regulation under specific biological contexts of interest. The assay for transposase-accessible chromatin sequencing (ATAC-seq) has been widely used to detect accessible chromatin and the recent introduction of single-cell technology has increased resolution to the single-cell level. In a recent study, we used droplet-based, single-cell ATAC-seq technology (scATAC-seq) to reveal the epigenetic profile of the transit-amplifying subset of thymic epithelial cells (TECs), which was identified previously using single-cell RNA-sequencing technology (scRNA-seq). This protocol allows the preparation of nuclei from TECs in order to perform droplet-based scATAC-seq and its integrative analysis with scRNA-seq data obtained from the same cell population. Integrative analysis has the advantage of identifying cell types in scATAC-seq data based on cell cluster annotations in scRNA-seq analysis.
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Affiliation(s)
- Tatsuya Ishikawa
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan,Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Hiroto Ishii
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan,Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Takahisa Miyao
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan,Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Kenta Horie
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Maki Miyauchi
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan,Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Nobuko Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan,*For correspondence: ;
| | - Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan,Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan,*For correspondence: ;
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6
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Kadota N, Nakahira N, Miyauchi M, Naruse K, Takeuchi E, Shinohara T. Usefulness of bronchoalveolar lavage (BAL) in the diagnosis of pulmonary alveolar proteinosis. QJM 2022; 115:767-768. [PMID: 35809073 DOI: 10.1093/qjmed/hcac168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 07/04/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- N Kadota
- Department of Pulmonary Medicine, National Hospital Organization Kochi Hospital, 1-2-25 Asakuranishimachi, Kochi 780-8077, Japan
| | - N Nakahira
- Department of Clinical Laboratory, National Hospital Organization Kochi Hospital, 1-2-25 Asakuranishimachi, Kochi 780-8077, Japan
| | - M Miyauchi
- Department of Clinical Laboratory, National Hospital Organization Kochi Hospital, 1-2-25 Asakuranishimachi, Kochi 780-8077, Japan
| | - K Naruse
- Department of Pathology, National Hospital Organization Kochi Hospital, 1-2-25 Asakuranishimachi, Kochi 780-8077, Japan
| | - E Takeuchi
- Department of Clinical Investigation, National Hospital Organization Kochi Hospital, 1-2-25 Asakuranishimachi, Kochi 780-8077, Japan
| | - T Shinohara
- Department of Clinical Investigation, National Hospital Organization Kochi Hospital, 1-2-25 Asakuranishimachi, Kochi 780-8077, Japan
- Department of Community Medicine for Respirology, Graduate School of Biomedical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan
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7
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MIyao T, Miyauchi M, Kelly ST, Terooatea TW, Ishikawa T, Oh E, Hirai S, Horie K, Takakura Y, Ohki H, Hayama M, Maruyama Y, Seki T, Ishii H, Yabukami H, Yoshida M, Inoue A, Sakaue-Sawano A, Miyawaki A, Muratani M, Minoda A, Akiyama N, Akiyama T. Integrative analysis of scRNA-seq and scATAC-seq revealed transit-amplifying thymic epithelial cells expressing autoimmune regulator. eLife 2022; 11:73998. [PMID: 35578835 PMCID: PMC9113748 DOI: 10.7554/elife.73998] [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: 09/17/2021] [Accepted: 04/21/2022] [Indexed: 12/03/2022] Open
Abstract
Medullary thymic epithelial cells (mTECs) are critical for self-tolerance induction in T cells via promiscuous expression of tissue-specific antigens (TSAs), which are controlled by the transcriptional regulator, AIRE. Whereas AIRE-expressing (Aire+) mTECs undergo constant turnover in the adult thymus, mechanisms underlying differentiation of postnatal mTECs remain to be discovered. Integrative analysis of single-cell assays for transposase-accessible chromatin (scATAC-seq) and single-cell RNA sequencing (scRNA-seq) suggested the presence of proliferating mTECs with a specific chromatin structure, which express high levels of Aire and co-stimulatory molecules, CD80 (Aire+CD80hi). Proliferating Aire+CD80hi mTECs detected using Fucci technology express a minimal number of Aire-dependent TSAs and are converted into quiescent Aire+CD80hi mTECs expressing high levels of TSAs after a transit amplification. These data provide evidence for the existence of transit-amplifying Aire+mTEC precursors during the Aire+mTEC differentiation process of the postnatal thymus.
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Affiliation(s)
- Takahisa MIyao
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Maki Miyauchi
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - S Thomas Kelly
- Laboratory for Cellular Epigenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Tommy W Terooatea
- Laboratory for Cellular Epigenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Tatsuya Ishikawa
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Eugene Oh
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Sotaro Hirai
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Kenta Horie
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yuki Takakura
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Houko Ohki
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Mio Hayama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Yuya Maruyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Takao Seki
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Hiroto Ishii
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Haruka Yabukami
- Laboratory for Cellular Epigenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Masaki Yoshida
- YCI Laboratory for Immunological Transcriptomics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Azusa Inoue
- YCI Laboratory for Metabolic Epigenetics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Asako Sakaue-Sawano
- Laboratory for Cell Function Dynamics, RIKEN Center for Brain Science, Saitama, Japan
| | - Atsushi Miyawaki
- Laboratory for Cell Function Dynamics, RIKEN Center for Brain Science, Saitama, Japan
| | - Masafumi Muratani
- Transborder Medical Research Center, and Department of Genome Biology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Aki Minoda
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Laboratory for Cellular Epigenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Nobuko Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,Immunobiology, Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
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8
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Hirabayashi T, Yasuhara S, Shoji S, Yamaguchi A, Abe H, Ueda S, Zhu H, Kondo T, Miyauchi M. Fabrication of Hydrogen Boride Thin Film by Ion Exchange in MgB 2. Molecules 2021; 26:molecules26206212. [PMID: 34684790 PMCID: PMC8540303 DOI: 10.3390/molecules26206212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/11/2021] [Revised: 10/04/2021] [Accepted: 10/09/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, hydrogen boride films are fabricated by ion-exchange treatment on magnesium diboride (MgB2) films under ambient temperature and pressure. We prepared oriented MgB2 films on strontium titanate (SrTiO3) substrates using pulsed laser deposition (PLD). Subsequently, these films were treated with ion exchangers in acetonitrile solution. TOF-SIMS analysis evidenced that hydrogen species were introduced into the MgB2 films by using two types of ion exchangers: proton exchange resin and formic acid. According to the HAXPES analysis, negatively charged boron species were preserved in the films after the ion-exchange treatment. In addition, the FT-IR analysis suggested that B-H bonds were formed in the MgB2 films following the ion-exchange treatment. The ion-exchange treatment using formic acid was more efficient compared to the resin treatment; with respect to the amount of hydrogen species introduced into the MgB2 films. These ion-exchanged films exhibited photoinduced hydrogen release as observed in a powder sample. Based on the present study, we expect to be able to control the morphology and hydrogen content of hydrogen boride thin films by optimising the ion-exchange treatment process, which will be useful for further studies and device applications.
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Affiliation(s)
- T. Hirabayashi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
- Department of Mechanical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
| | - S. Yasuhara
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
| | - S. Shoji
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
- Department of Materials Science & Engineering, Cornell University, Ithaca, NY 14853, USA
| | - A. Yamaguchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
| | - H. Abe
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, Tsukuba 305-0044, Japan;
| | - S. Ueda
- Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, Hyogo 679-5148, Japan;
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science, Tsukuba 305-0047, Japan
- Research Center for Functional Materials, National Institute for Materials Science, Tsukuba 305-0044, Japan
| | - H. Zhu
- Department of Mechanical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;
| | - T. Kondo
- Department of Materials Science and Tsukuba Research Center for Energy Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8573, Japan
- Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama 226-8503, Japan
- Correspondence: (T.K.); (M.M.)
| | - M. Miyauchi
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo 152-8552, Japan; (T.H.); (S.Y.); (S.S.); (A.Y.)
- Correspondence: (T.K.); (M.M.)
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9
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Cho Y, Yamaguchi A, Uehara R, Yasuhara S, Hoshina T, Miyauchi M. Temperature dependence on bandgap of semiconductor photocatalysts. J Chem Phys 2020; 152:231101. [DOI: 10.1063/5.0012330] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Y. Cho
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - A. Yamaguchi
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - R. Uehara
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - S. Yasuhara
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - T. Hoshina
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - M. Miyauchi
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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10
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Hata A, Miyauchi M, Suzuki Y, Otomo Y, Fujitani N. Distribution of urinary gamma-glutamyltransferase activity in 40- to 74-year-old Japanese women. Pract Lab Med 2020; 20:e00161. [PMID: 32322645 PMCID: PMC7163312 DOI: 10.1016/j.plabm.2020.e00161] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/25/2020] [Accepted: 03/17/2020] [Indexed: 12/03/2022] Open
Abstract
Urinary gamma-glutamyltransferase (u-γGT) concentration (U/L) and excretion (urinary creatinine-corrected u-γGT; u-γGT/u-Cre, U/g creatinine) are useful markers for kidney disease. However, there is limited information available on u-γGT and u-γGT/u-Cre distribution in the elderly Japanese population. In this study, we investigated the distribution of u-γGT and u-γGT/u-Cre in 113 Japanese women aged 40–74 years. The u-γGT was assessed from spot urine samples (collected from 09:00 to 14:00) spectrophotometrically according to the Japan Society of Clinical Chemistry reference measurement procedure using l-γ-glutamyl-3-carboxy-4-nitroanilide as the substrate. The u-Cre was measured enzymatically using creatininase, creatinase, sarcosine oxidase, and peroxidase. None of the participants was diagnosed with any kidney disease. Median u-γGT and u-γGT/u-Cre values (central 95% interval values) were 29.7 (5.3–144.0) U/L and 57.9 (32.9–122.7) U/g creatinine, respectively. The distribution of u-γGT tended to decline with age. There was a statistically significant difference in the u-γGT value between the 40-59- and 60-74-year-old groups. In contrast, there was no significant difference in the u-γGT/u-Cre between each age group. The u-Cre level also declined with age. It is suggested that the decline of u-γGT with aging would be masked by the u-Cre correction. Median (central 95% interval values) u-γGT value was 29.7 (5.3–144.0) U/L. Median (central 95% interval values) u-γGT/u-Cre ratio was 57.9 (32.9–122.7) U/g creatinine. Distribution of u-γGT tends to decline with age. u-Cre levels also declined with age. Decline of u-γGT with aging would be masked by the u-Cre correction.
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Affiliation(s)
- Akihisa Hata
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan.,Biomedical Science Examination and Research Center, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan
| | - Maki Miyauchi
- Graduate School of Health and Sports Science, Juntendo University, Hiraga-gakuendai 1-1, Inzai, Chiba, 2701695, Japan
| | - Yoshio Suzuki
- Graduate School of Health and Sports Science, Juntendo University, Hiraga-gakuendai 1-1, Inzai, Chiba, 2701695, Japan
| | - Yuki Otomo
- Graduate School of Risk and Crisis Management, Chiba Institute of Science, Shiomi-cho 15-9, Choshi, Chiba, 2880025, Japan
| | - Noboru Fujitani
- Faculty of Veterinary Medicine, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan.,Biomedical Science Examination and Research Center, Okayama University of Science, Ikoino-oka 1-3, Imabari, Ehime, 7948555, Japan
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11
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Horie K, Kato T, Kudo T, Sasanuma H, Miyauchi M, Akiyama N, Miyao T, Seki T, Ishikawa T, Takakura Y, Shirakawa M, Shiba D, Hamada M, Jeon H, Yoshida N, Inoue JI, Muratani M, Takahashi S, Ohno H, Akiyama T. Impact of spaceflight on the murine thymus and mitigation by exposure to artificial gravity during spaceflight. Sci Rep 2019; 9:19866. [PMID: 31882694 PMCID: PMC6934594 DOI: 10.1038/s41598-019-56432-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 09/23/2019] [Accepted: 12/12/2019] [Indexed: 12/21/2022] Open
Abstract
The environment experienced during spaceflight may impact the immune system and the thymus appears to undergo atrophy during spaceflight. However, molecular aspects of this thymic atrophy remain to be elucidated. In this study, we analysed the thymi of mice on board the international space station (ISS) for approximately 1 month. Thymic size was significantly reduced after spaceflight. Notably, exposure of mice to 1 × g using centrifugation cages in the ISS significantly mitigated the reduction in thymic size. Although spaceflight caused thymic atrophy, the global thymic structure was not largely changed. However, RNA sequencing analysis of the thymus showed significantly reduced expression of cell cycle-regulating genes in two independent spaceflight samples. These reductions were partially countered by 1 × g exposure during the space flights. Thus, our data suggest that spaceflight leads to reduced proliferation of thymic cells, thereby reducing the size of the thymus, and exposure to 1 × g might alleviate the impairment of thymus homeostasis induced by spaceflight.
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Affiliation(s)
- Kenta Horie
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Tamotsu Kato
- Laboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Takashi Kudo
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki, 305-8575, Japan.,Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan
| | - Hiroki Sasanuma
- Laboratory of Developmental Genetics, Institute of Medical Science, University of Tokyo, Tokyo, 108-8639, Japan
| | - Maki Miyauchi
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Nobuko Akiyama
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Takahisa Miyao
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Takao Seki
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Tatsuya Ishikawa
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Yuki Takakura
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan
| | - Masaki Shirakawa
- JEM Utilization Center, Human Spaceflight Technology Directorate, JAXA, Ibaraki, 305-8505, Japan
| | - Dai Shiba
- JEM Utilization Center, Human Spaceflight Technology Directorate, JAXA, Ibaraki, 305-8505, Japan
| | - Michito Hamada
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki, 305-8575, Japan.,Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan
| | - Hyojung Jeon
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki, 305-8575, Japan.,Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan
| | - Nobuaki Yoshida
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan.,Laboratory of Developmental Genetics, Institute of Medical Science, University of Tokyo, Tokyo, 108-8639, Japan
| | - Jun-Ichiro Inoue
- Division of Cellular and Molecular Biology, Institute of Medical Science, University of Tokyo, Tokyo, 108-8639, Japan
| | - Masafumi Muratani
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan.,Transborder Medical Research Center, and Department of Genome Biology, Faculty of Medicine, University of Tsukuba, Ibaraki, 305-8575, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki, 305-8575, Japan.,Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan
| | - Hiroshi Ohno
- Laboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan.
| | - Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan. .,Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Ibaraki, 305-8505, Japan.
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12
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Yamamoto M, Abe C, Wakinaga S, Sakane K, Yumiketa Y, Taguchi Y, Matsumura T, Ishikawa K, Fujimoto J, Semba K, Miyauchi M, Akiyama T, Inoue JI. TRAF6 maintains mammary stem cells and promotes pregnancy-induced mammary epithelial cell expansion. Commun Biol 2019; 2:292. [PMID: 31396572 PMCID: PMC6684589 DOI: 10.1038/s42003-019-0547-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 07/15/2019] [Indexed: 01/03/2023] Open
Abstract
Receptor activator of nuclear factor (NF)-κB (RANK) signaling promotes pregnancy-dependent epithelial cell differentiation and expansion for mammary gland development, which requires NF-κB pathway-dependent Cyclin D1 induction and inhibitor of DNA binding 2 (Id2) pathway-dependent anti-apoptotic gene induction. However, the roles of tumor necrosis factor receptor-associated factor 6 (TRAF6) remain unclear despite its requirement in RANK signaling. Here we show that TRAF6 is crucial for both mammary stem cell maintenance and pregnancy-induced epithelial cell expansion. TRAF6 deficiency impairs phosphoinositide 3-kinase (PI3K)/AKT and canonical NF-κB pathways, whereas noncanonical NF-κB signaling remains functional. Therefore, we propose that TRAF6 promotes cell proliferation by activating PI3K/AKT signaling to induce retinoblastoma phosphorylation in concert with noncanonical NF-κB pathway-dependent Cyclin D1 induction. Furthermore, TRAF6 inhibits apoptosis by activating canonical NF-κB signaling to induce anti-apoptotic genes with the Id2 pathway. Therefore, proper orchestration of TRAF6-dependent and -independent RANK signals likely establishes mammary gland formation.
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Affiliation(s)
- Mizuki Yamamoto
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
- Research Center for Asian Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
| | - Chiho Abe
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
| | - Sakura Wakinaga
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
| | - Kota Sakane
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
| | - Yo Yumiketa
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
| | - Yuu Taguchi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
| | - Takayuki Matsumura
- Department of Immunology, National Institute of Infectious Diseases, Toyama, Shinjuku-ku, Tokyo 162-8640 Japan
| | - Kosuke Ishikawa
- Department of Life Science and Medical Bio-Science, Waseda University, Shinjuku-ku, Tokyo 162-8480 Japan
| | - Jiro Fujimoto
- Department of Life Science and Medical Bio-Science, Waseda University, Shinjuku-ku, Tokyo 162-8480 Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bio-Science, Waseda University, Shinjuku-ku, Tokyo 162-8480 Japan
| | - Maki Miyauchi
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan
| | - Taishin Akiyama
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Kanagawa 230-0045 Japan
| | - Jun-ichiro Inoue
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
- Research Center for Asian Infectious Diseases, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639 Japan
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13
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Mori K, Kurihara T, Miyauchi M, Ishida A, Jiang X, Ikeda SI, Torii H, Tsubota K. Oral crocetin administration suppressed refractive shift and axial elongation in a murine model of lens-induced myopia. Sci Rep 2019; 9:295. [PMID: 30670743 PMCID: PMC6343000 DOI: 10.1038/s41598-018-36576-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 06/02/2018] [Accepted: 11/23/2018] [Indexed: 11/09/2022] Open
Abstract
Increased global incidence of myopia necessitates establishment of therapeutic approaches against its progression. To explore agents which may control myopia, we screened 207 types of natural compounds and chemical reagents based on an activity of a myopia suppressive factor, early growth response protein 1 (Egr-1) in vitro. Among the candidates, crocetin showed the highest and dose-dependent activation of Egr-1. For in vivo analysis, experimental myopia was induced in 3-week-old C57BL/6 J mice with −30 diopter (D) lenses for 3 weeks. Animals were fed with normal or mixed chow containing 0.003% (n = 19) and 0.03% (n = 7) of crocetin during myopia induction. Refraction and axial length were measured at 3-week-old and the 6-week-old with an infrared photorefractor and a SD-OCT system. Compared to controls (n = 14), crocetin administration showed a significant smaller change of refractive errors (−13.62 ± 8.14 vs +0.82 ± 5.81 D for 0.003%, p < 0.01, −2.00 ± 4.52 D for 0.03%, p < 0.01) and axial elongation (0.27 ± 0.03 vs 0.22 ± 0.04 mm for 0.003%, p < 0.01, 0.23 ± 0.05 mm for 0.03%, p < 0.05). These results suggest that a dietary factor crocetin may have a preventive effect against myopia progression.
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Affiliation(s)
- Kiwako Mori
- Laboratory of Photobiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Toshihide Kurihara
- Laboratory of Photobiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan. .,Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Maki Miyauchi
- Laboratory of Photobiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Ayako Ishida
- Laboratory of Photobiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Xiaoyan Jiang
- Laboratory of Photobiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shin-Ichi Ikeda
- Laboratory of Photobiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Hidemasa Torii
- Laboratory of Photobiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.,Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan.
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14
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Horie K, Kudo T, Yoshinaga R, Akiyama N, Sasanuma H, Kobayashi TJ, Shimbo M, Jeon H, Miyao T, Miyauchi M, Shirakawa M, Shiba D, Yoshida N, Muratani M, Takahashi S, Akiyama T. Long-term hindlimb unloading causes a preferential reduction of medullary thymic epithelial cells expressing autoimmune regulator (Aire). Biochem Biophys Res Commun 2018; 501:745-750. [PMID: 29753741 DOI: 10.1016/j.bbrc.2018.05.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 05/10/2018] [Indexed: 11/16/2022]
Abstract
Hindlimb unloading (HU) of rodents has been used as a ground-based model of spaceflight. In this study, we investigated the detailed impact of 14-day HU on the murine thymus. Thymic mass and cell number were significantly reduced after 14 days of hindlimb unloading, which was accompanied by an increment of plasma corticosterone. Although corticosterone reportedly causes selective apoptosis of CD4+CD8+ thymocytes (CD4+CD8+DPs) in mice treated with short-term HU, the reduction of thymocyte cellularity after the 14-day HU was not selective for CD4+CD8+DPs. In addition to the thymocyte reduction, the cellularity of thymic epithelial cells (TECs) was also reduced by the 14-day HU. Flow cytometric and RNA-sequencing analysis suggested that medullary TECs (mTECs) were preferentially reduced after HU. Moreover, immunohistochemical staining suggested that the 14-day HU caused a reduction of the mTECs expressing autoimmune regulator (Aire). Our data suggested that HU impacts both thymocytes and TECs. Consequently, these data imply that thymic T cell repertoire formation could be disturbed during spaceflight-like stress.
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Affiliation(s)
- Kenta Horie
- Center for Integrative Medical Science, RIKEN, Yokohama 230-0045, Japan; Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan
| | - Takashi Kudo
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; Laboratory Animal Resource Center and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Riko Yoshinaga
- Center for Integrative Medical Science, RIKEN, Yokohama 230-0045, Japan; Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan
| | - Nobuko Akiyama
- Center for Integrative Medical Science, RIKEN, Yokohama 230-0045, Japan; Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan
| | - Hiroki Sasanuma
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Tetsuya J Kobayashi
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
| | - Miki Shimbo
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; Laboratory Animal Resource Center and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Hyojung Jeon
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; Laboratory Animal Resource Center and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Takahisa Miyao
- Center for Integrative Medical Science, RIKEN, Yokohama 230-0045, Japan
| | - Maki Miyauchi
- Center for Integrative Medical Science, RIKEN, Yokohama 230-0045, Japan
| | - Masaki Shirakawa
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; JEM Utilization Center, Human Spaceflight Technology Directorate, JAXA, Ibaraki 305-8505, Japan
| | - Dai Shiba
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; JEM Utilization Center, Human Spaceflight Technology Directorate, JAXA, Ibaraki 305-8505, Japan
| | - Nobuaki Yoshida
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Masafumi Muratani
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; Department of Genome Biology, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Satoru Takahashi
- Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan; Laboratory Animal Resource Center and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Ibaraki 305-8575, Japan
| | - Taishin Akiyama
- Center for Integrative Medical Science, RIKEN, Yokohama 230-0045, Japan; Mouse Epigenetics Project, ISS/Kibo experiment, Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan.
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15
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Miyauchi M, Ishibashi F, Hondo M, Shimizu I, Yanagisawa M. The effect of zonisamide on abnormal muscle tone during REM sleep in a mouse model of REM sleep behavior disorder. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.668] [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: 11/30/2022]
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16
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Miyauchi M, Miyauchi Y, Miyatake Y, Yasuda S. P1389Role of FDG-PET/CT in patients with atrial fibrillation. Europace 2017. [DOI: 10.1093/ehjci/eux158.017] [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: 11/13/2022] Open
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17
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Abstract
Destruction of cementum and alveolar bone is the main causative event for the exfoliation of teeth as a consequence of periodontitis. Prostaglandin E2 (PGE2) and PGE receptor subtypes (EPs) play an important role in modulating osteoblast-mediated osteoclastogenesis; however, no information is available on the role of PGE2 and EPs in regulating cementoblast-mediated cementoclastogenesis. We hypothesized that the PGE2-EPs pathway also regulates cementoblasts’ ability to activate cementoclasts. For these studies, OCCM-30 cells (a mouse cementoblast cell line) were exposed to PGE2 and specific EP agonists. PGE2 (100 ng/mL) and EP4 agonist (1 μM) up-regulated RANKL and IL-6 mRNA levels, while they down-regulated OPG mRNA expression. The EP4 antagonist (1 μM) eliminated these effects of PGE2. PGE2 treatment of co-cultures of OCCM-30 cells with bone marrow cells induced TRAP-positive cells via the EP4 pathway. These findings suggest that PGE2 promotes cementoblast-mediated cementoclastogenesis by regulating the expression of RANKL and OPG via the EP4 pathway.
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Affiliation(s)
- H Oka
- Department of Oral and Maxillofacial Pathobiology, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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18
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Akiyama N, Takizawa N, Miyauchi M, Yanai H, Tateishi R, Shinzawa M, Yoshinaga R, Kurihara M, Demizu Y, Yasuda H, Yagi S, Wu G, Matsumoto M, Sakamoto R, Yoshida N, Penninger JM, Kobayashi Y, Inoue JI, Akiyama T. Identification of embryonic precursor cells that differentiate into thymic epithelial cells expressing autoimmune regulator. J Exp Med 2016; 213:1441-58. [PMID: 27401343 PMCID: PMC4986530 DOI: 10.1084/jem.20151780] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 05/25/2016] [Indexed: 01/21/2023] Open
Abstract
Medullary thymic epithelial cells (mTECs) expressing autoimmune regulator (Aire) are critical for preventing the onset of autoimmunity. However, the differentiation program of Aire-expressing mTECs (Aire(+) mTECs) is unclear. Here, we describe novel embryonic precursors of Aire(+) mTECs. We found the candidate precursors of Aire(+) mTECs (pMECs) by monitoring the expression of receptor activator of nuclear factor-κB (RANK), which is required for Aire(+) mTEC differentiation. pMECs unexpectedly expressed cortical TEC molecules in addition to the mTEC markers UEA-1 ligand and RANK and differentiated into mTECs in reaggregation thymic organ culture. Introduction of pMECs in the embryonic thymus permitted long-term maintenance of Aire(+) mTECs and efficiently suppressed the onset of autoimmunity induced by Aire(+) mTEC deficiency. Mechanistically, pMECs differentiated into Aire(+) mTECs by tumor necrosis factor receptor-associated factor 6-dependent RANK signaling. Moreover, nonclassical nuclear factor-κB activation triggered by RANK and lymphotoxin-β receptor signaling promoted pMEC induction from progenitors exhibiting lower RANK expression and higher CD24 expression. Thus, our findings identified two novel stages in the differentiation program of Aire(+) mTECs.
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Affiliation(s)
- Nobuko Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Nobukazu Takizawa
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Maki Miyauchi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Hiromi Yanai
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Ryosuke Tateishi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Miho Shinzawa
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Riko Yoshinaga
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Masaaki Kurihara
- Division of Organic Chemistry, National Institute of Health Sciences, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, Kamiyoga, Setagaya, Tokyo 158-8501, Japan
| | - Hisataka Yasuda
- Nagahama Institute for Biochemical Science, Oriental Yeast Co., Ltd., 50, Kano-cho, Nagahama, Shiga 526-0804, Japan
| | - Shintaro Yagi
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Guoying Wu
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Mitsuru Matsumoto
- Division of Molecular Immunology, Institute for Enzyme Research, Tokushima University, Tokushima 770-8503, Japan
| | - Reiko Sakamoto
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Nobuaki Yoshida
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Josef M Penninger
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences, 1030 Vienna, Austria
| | - Yasuhiro Kobayashi
- Institute for Oral Science, Matsumoto Dental University, Hiro-oka, Shiojiri-shi, Nagano 399-0781, Japan
| | - Jun-Ichiro Inoue
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
| | - Taishin Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
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19
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Kunimatsu R, Yoshimi Y, Hirose N, Awada T, Miyauchi M, Takata T, Li W, Zhu L, Denbesten P, Tanimoto K. The C-terminus of amelogenin enhances osteogenic differentiation of human cementoblast lineage cells. J Periodontal Res 2016; 52:218-224. [DOI: 10.1111/jre.12384] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2016] [Indexed: 12/28/2022]
Affiliation(s)
- R. Kunimatsu
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - Y. Yoshimi
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - N. Hirose
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - T. Awada
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - M. Miyauchi
- Department of Oral Maxillofacial and Pathobiology; Basic Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - T. Takata
- Department of Oral Maxillofacial and Pathobiology; Basic Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
| | - W. Li
- Department of Orofacial Sciences; University of California; San Francisco CA USA
| | - L. Zhu
- Department of Orofacial Sciences; University of California; San Francisco CA USA
| | - P.K. Denbesten
- Department of Orofacial Sciences; University of California; San Francisco CA USA
| | - K. Tanimoto
- Department of Orthodontics; Applied Life Sciences; Hiroshima University; Institute of Biomedical & Health Sciences; Hiroshima Japan
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20
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Shiga Y, Umezawa N, Srinivasan N, Koyasu S, Sakai E, Miyauchi M. A metal sulfide photocatalyst composed of ubiquitous elements for solar hydrogen production. Chem Commun (Camb) 2016; 52:7470-3. [DOI: 10.1039/c6cc03199d] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [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
A visible-light-sensitive tin sulfide photocatalyst was designed based on a ubiquitous element strategy and density functional theory (DFT) calculations.
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Affiliation(s)
- Y. Shiga
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - N. Umezawa
- International Center for Materials Nanoarchitectonics
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
| | - N. Srinivasan
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - S. Koyasu
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - E. Sakai
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - M. Miyauchi
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
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21
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Tateishi R, Akiyama N, Miyauchi M, Yoshinaga R, Sasanuma H, Kudo T, Shimbo M, Shinohara M, Obata K, Inoue JI, Shirakawa M, Shiba D, Asahara H, Yoshida N, Takahashi S, Morita H, Akiyama T. Hypergravity Provokes a Temporary Reduction in CD4+CD8+ Thymocyte Number and a Persistent Decrease in Medullary Thymic Epithelial Cell Frequency in Mice. PLoS One 2015; 10:e0141650. [PMID: 26513242 PMCID: PMC4626100 DOI: 10.1371/journal.pone.0141650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 10/12/2015] [Indexed: 11/18/2022] Open
Abstract
Gravity change affects many immunological systems. We investigated the effects of hypergravity (2G) on murine thymic cells. Exposure of mice to 2G for three days reduced the frequency of CD4+CD8+ thymocytes (DP) and mature medullary thymic epithelial cells (mTECs), accompanied by an increment of keratin-5 and keratin-8 double-positive (K5+K8+) TECs that reportedly contain TEC progenitors. Whereas the reduction of DP was recovered by a 14-day exposure to 2G, the reduction of mature mTECs and the increment of K5+K8+ TEC persisted. Interestingly, a surgical lesion of the inner ear’s vestibular apparatus inhibited these hypergravity effects. Quantitative PCR analysis revealed that the gene expression of Aire and RANK that are critical for mTEC function and development were up-regulated by the 3-day exposure and subsequently down-regulated by the 14-day exposure to 2G. Unexpectedly, this dynamic change in mTEC gene expression was independent of the vestibular apparatus. Overall, data suggest that 2G causes a temporary reduction of DP and a persistent reduction of mature mTECs in a vestibular system-dependent manner, and also dysregulates mTEC gene expression without involving the vestibular system. These data might provide insight on the impact of gravity change on thymic functions during spaceflight and living.
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Affiliation(s)
- Ryosuke Tateishi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
| | - Nobuko Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
| | - Maki Miyauchi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
| | - Riko Yoshinaga
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
| | - Hiroki Sasanuma
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The University of Tokyo, Tokyo, Japan
| | - Takashi Kudo
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Miki Shimbo
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masahiro Shinohara
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Department of Systems BioMedicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- JST, PRESTO, Kawaguchi, Saitama, Japan
| | - Koji Obata
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Department of Physiology, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Jun-ichiro Inoue
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Masaki Shirakawa
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, JAXA, Tsukuba, Ibaraki, Japan
| | - Dai Shiba
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, JAXA, Tsukuba, Ibaraki, Japan
| | - Hiroshi Asahara
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Department of Systems BioMedicine, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Nobuaki Yoshida
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Laboratory of Developmental Genetics, Center for Experimental Medicine and Systems Biology, The University of Tokyo, Tokyo, Japan
| | - Satoru Takahashi
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Laboratory Animal Resource Center, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hironobu Morita
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- Department of Physiology, Gifu University Graduate School of Medicine, Gifu, Japan
- * E-mail: (TA); (HM)
| | - Taishin Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Mouse epigenetics project, ISS/Kibo experiment, Japan Aerospace Exploration Agency, JAXA, Tsukuba, Japan
- * E-mail: (TA); (HM)
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22
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Umemura E, Ito M, Tokura T, Nagashima W, Kimura H, Kobayashi Y, Tachibana M, Miyauchi M, Arao M, Ozaki N, Kurita K. The treatment pathway of chronic orofacial pain triggered by dental treatment – relieving effect and concurrent depressive symptoms of duloxetine treatment. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.834] [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: 11/30/2022]
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23
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Kondo A, Yin G, Srinivasan N, Atarashi D, Sakai E, Miyauchi M. Kelvin probe imaging of photo-injected electrons in metal oxide nanosheets from metal sulfide quantum dots under remote photochromic coloration. Nanoscale 2015; 7:12510-12515. [PMID: 26139287 DOI: 10.1039/c5nr02405f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Metal oxide and quantum dot (QD) heterostructures have attracted considerable recent attention as materials for developing efficient solar cells, photocatalysts, and display devices, thus nanoscale imaging of trapped electrons in these heterostructures provides important insight for developing efficient devices. In the present study, Kelvin probe force microscopy (KPFM) of CdS quantum dot (QD)-grafted Cs4W11O36(2-) nanosheets was performed before and after visible-light irradiation. After visible-light excitation of the CdS QDs, the Cs4W11O36(2-) nanosheet surface exhibited a decreased work function in the vicinity of the junction with CdS QDs, even though the Cs4W11O36(2-) nanosheet did not absorb visible light. X-ray photoelectron spectroscopy revealed that W(5+) species were formed in the nanosheet after visible-light irradiation. These results demonstrated that excited electrons in the CdS QDs were injected and trapped in the Cs4W11O36(2-) nanosheet to form color centers. Further, the CdS QDs and Cs4W11O36(2-) nanosheet composite films exhibited efficient remote photochromic coloration, which was attributed to the quantum nanostructure of the film. Notably, the responsive wavelength of the material is tunable by adjusting the size of QDs, and the decoloration rate is highly efficient, as the required length for trapped electrons to diffuse into the nanosheet surface is very short owing to its nanoscale thickness. The unique properties of this photochromic device make it suitable for display or memory applications. In addition, the methodology described in the present study for nanoscale imaging is expected to aid in the understanding of electron transport and trapping processes in metal oxide and metal chalcogenide heterostructure, which are crucial phenomena in QD-based solar cells and/or photocatalytic water-splitting systems.
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Affiliation(s)
- A Kondo
- Department of Metallurgy and Ceramics Science, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan.
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24
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Seki T, Yamamoto M, Taguchi Y, Miyauchi M, Akiyama N, Yamaguchi N, Gohda J, Akiyama T, Inoue JI. Visualization of RelB expression and activation at the single-cell level during dendritic cell maturation in Relb-Venus knock-in mice. J Biochem 2015; 158:485-95. [PMID: 26115685 DOI: 10.1093/jb/mvv064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 05/25/2015] [Indexed: 12/19/2022] Open
Abstract
RelB is activated by the non-canonical NF-κB pathway, which is crucial for immunity by establishing lymphoid organogenesis and B-cell and dendritic cell (DC) maturation. To elucidate the mechanism of the RelB-mediated immune cell maturation, a precise understanding of the relationship between cell maturation and RelB expression and activation at the single-cell level is required. Therefore, we generated knock-in mice expressing a fusion protein between RelB and fluorescent protein (RelB-Venus) from the Relb locus. The Relb(Venus/Venus) mice developed without any abnormalities observed in the Relb(-/-) mice, allowing us to monitor RelB-Venus expression and nuclear localization as RelB expression and activation. Relb(Venus/Venus) DC analyses revealed that DCs consist of RelB(-), RelB(low) and RelB(high) populations. The RelB(high) population, which included mature DCs with projections, displayed RelB nuclear localization, whereas RelB in the RelB(low) population was in the cytoplasm. Although both the RelB(low) and RelB(-) populations barely showed projections, MHC II and co-stimulatory molecule expression were higher in the RelB(low) than in the RelB(-) splenic conventional DCs. Taken together, our results identify the RelB(low) population as a possible novel intermediate maturation stage of cDCs and the Relb(Venus/Venus) mice as a useful tool to analyse the dynamic regulation of the non-canonical NF-κB pathway.
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Affiliation(s)
- Takao Seki
- Division of Cellular and Molecular Biology, Department of Cancer Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Mami Yamamoto
- Division of Cellular and Molecular Biology, Department of Cancer Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Yuu Taguchi
- Division of Cellular and Molecular Biology, Department of Cancer Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Maki Miyauchi
- Division of Cellular and Molecular Biology, Department of Cancer Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Nobuko Akiyama
- Division of Cellular and Molecular Biology, Department of Cancer Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Noritaka Yamaguchi
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan; and
| | - Jin Gohda
- Research Center for Asian Infectious Diseases, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Taishin Akiyama
- Division of Cellular and Molecular Biology, Department of Cancer Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
| | - Jun-ichiro Inoue
- Division of Cellular and Molecular Biology, Department of Cancer Biology, Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan;
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25
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Shinzawa M, Konno H, Qin J, Akiyama N, Miyauchi M, Ohashi H, Miyamoto-Sato E, Yanagawa H, Akiyama T, Inoue JI. Catalytic subunits of the phosphatase calcineurin interact with NF-κB-inducing kinase (NIK) and attenuate NIK-dependent gene expression. Sci Rep 2015; 5:10758. [PMID: 26029823 PMCID: PMC5377069 DOI: 10.1038/srep10758] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 04/28/2015] [Indexed: 01/09/2023] Open
Abstract
Nuclear factor (NF)-κB-inducing kinase (NIK) is a serine/threonine kinase that activates NF-κB pathways, thereby regulating a wide variety of immune systems. Aberrant NIK activation causes tumor malignancy, suggesting a requirement for precise regulation of NIK activity. To explore novel interacting proteins of NIK, we performed in vitro virus screening and identified the catalytic subunit Aα isoform of serine/threonine phosphatase calcineurin (CnAα) as a novel NIK-interacting protein. The interaction of NIK with CnAα in living cells was confirmed by co-immunoprecipitation. Calcineurin catalytic subunit Aβ isoform (CnAβ) also bound to NIK. Experiments using domain deletion mutants suggested that CnAα and CnAβ interact with both the kinase domain and C-terminal region of NIK. Moreover, the phosphatase domain of CnAα is responsible for the interaction with NIK. Intriguingly, we found that TRAF3, a critical regulator of NIK activity, also binds to CnAα and CnAβ. Depletion of CnAα and CnAβ significantly enhanced lymphotoxin-β receptor (LtβR)-mediated expression of the NIK-dependent gene Spi-B and activation of RelA and RelB, suggesting that CnAα and CnAβ attenuate NF-κB activation mediated by LtβR-NIK signaling. Overall, these findings suggest a possible role of CnAα and CnAβ in modifying NIK functions.
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Affiliation(s)
- Miho Shinzawa
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Hiroyasu Konno
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Junwen Qin
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
- Department of Developmental and Regenerative Biology, Key Laboratory for Regenerative Medicine, Ministry of Education and International Base of Collaboration for Science and Technology, Ministry of Science and Technology, Jinan University, Guangzhou, China
| | - Nobuko Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Maki Miyauchi
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Hiroyuki Ohashi
- Division of Interactome Medical Sciences, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Etsuko Miyamoto-Sato
- Division of Interactome Medical Sciences, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
- Division of Molecular Biology, Research Institute for Biomedical Sciences, Tokyo University of Science, Yamazaki, Noda-shi, Chiba, Japan
| | - Hiroshi Yanagawa
- Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Taishin Akiyama
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
| | - Jun-ichiro Inoue
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
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26
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Akiyama N, Shinzawa M, Miyauchi M, Yanai H, Tateishi R, Shimo Y, Ohshima D, Matsuo K, Sasaki I, Hoshino K, Wu G, Yagi S, Inoue JI, Kaisho T, Akiyama T. Limitation of immune tolerance-inducing thymic epithelial cell development by Spi-B-mediated negative feedback regulation. J Exp Med 2014; 211:2425-38. [PMID: 25385757 PMCID: PMC4235644 DOI: 10.1084/jem.20141207] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 10/17/2014] [Indexed: 02/03/2023] Open
Abstract
Medullary thymic epithelial cells (mTECs) expressing the autoimmune regulator AIRE and various tissue-specific antigens (TSAs) are critical for preventing the onset of autoimmunity and may attenuate tumor immunity. However, molecular mechanisms controlling mTEC development remain elusive. Here, we describe the roles of the transcription factor Spi-B in mTEC development. Spi-B is rapidly up-regulated by receptor activator of NF-κB ligand (RANKL) cytokine signaling, which triggers mTEC differentiation, and in turn up-regulates CD80, CD86, some TSAs, and the natural inhibitor of RANKL signaling, osteoprotegerin (OPG). Spi-B-mediated OPG expression limits mTEC development in neonates but not in embryos, suggesting developmental stage-specific negative feedback regulation. OPG-mediated negative regulation attenuates cellularity of thymic regulatory T cells and tumor development in vivo. Hence, these data suggest that this negative RANKL-Spi-B-OPG feedback mechanism finely tunes mTEC development and function and may optimize the trade-off between prevention of autoimmunity and induction of antitumor immunity.
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MESH Headings
- Animals
- Animals, Newborn
- B7-1 Antigen/immunology
- B7-1 Antigen/metabolism
- Blotting, Western
- Cell Differentiation/genetics
- Cell Differentiation/immunology
- Cells, Cultured
- Epithelial Cells/immunology
- Epithelial Cells/metabolism
- Feedback, Physiological
- Female
- Gene Expression/immunology
- Immune Tolerance/genetics
- Immune Tolerance/immunology
- Male
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Nude
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/immunology
- Neoplasms, Experimental/metabolism
- Osteoprotegerin/genetics
- Osteoprotegerin/immunology
- Osteoprotegerin/metabolism
- Protein Serine-Threonine Kinases/immunology
- Protein Serine-Threonine Kinases/metabolism
- Proto-Oncogene Proteins c-ets/genetics
- Proto-Oncogene Proteins c-ets/immunology
- Proto-Oncogene Proteins c-ets/metabolism
- RANK Ligand/immunology
- RANK Ligand/metabolism
- Receptor Activator of Nuclear Factor-kappa B/genetics
- Receptor Activator of Nuclear Factor-kappa B/immunology
- Receptor Activator of Nuclear Factor-kappa B/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction/immunology
- Thymus Gland/immunology
- Thymus Gland/metabolism
- NF-kappaB-Inducing Kinase
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Affiliation(s)
- Nobuko Akiyama
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Miho Shinzawa
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Maki Miyauchi
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Hiromi Yanai
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Ryosuke Tateishi
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Yusuke Shimo
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Daisuke Ohshima
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Koichi Matsuo
- Laboratory of Cell and Tissue Biology, Graduate School of Medicine, Keio University, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Izumi Sasaki
- Laboratory for Immune Regulation, World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Katsuaki Hoshino
- Laboratory for Immune Regulation, World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan Laboratory for Inflammatory Regulation, Research Center for Allergy and Immunology, RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan Department of Immunology, Faculty of Medicine, Kagawa University, Kita-gun, Kagawa 761-0793, Japan
| | - Guoying Wu
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Shintaro Yagi
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Jun-ichiro Inoue
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Tsuneyasu Kaisho
- Laboratory for Immune Regulation, World Premier International Research Center Initiative, Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan Laboratory for Inflammatory Regulation, Research Center for Allergy and Immunology, RIKEN Center for Integrative Medical Sciences, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Taishin Akiyama
- Division of Cellular and Molecular Biology, Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
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Mizuno Y, Kurata N, Tsutsuyama M, Umeda S, Teramoto H, Shikano T, Hachisuka T, Mori T, Shinohara M, Miyauchi M. Retrospective Analysis of Efficacy and Optional Treatment with Lapatinib Plus Capecitabine Therapy. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kawazoe A, Inubushi T, Miyauchi M, Ishikado A, Tanaka E, Tanne K, Takata T. Orally Administered Liposomal Lactoferrin Inhibits Inflammation-Related Bone Breakdown Without Interrupting Orthodontic Tooth Movement. J Periodontol 2013; 84:1454-62. [DOI: 10.1902/jop.2012.120508] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Mine T, Murata S, Nakazawa K, Onozawa S, Ueda T, Miyauchi M, Morita S, Kumita S. Glue embolization for gastroduodenal ulcer bleeding: contribution to hemodynamics and healing process. Acta Radiol 2013; 54:934-8. [PMID: 23612428 DOI: 10.1177/0284185113484644] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Although the morbidity of bowel ischemic events after glue embolization has been suggested, a causal relationship between glue and ischemia has not been clearly established. PURPOSE To evaluate the efficiency and safety of transcatheter arterial embolization with n-butyl cyanoacrylate (NBCA-TAE) for upper gastrointestinal hemorrhage (GIH). MATERIAL AND METHODS Between October 2006 and October 2012, 21 patients with upper GIH underwent NBCA-TAE, and endoscopic data were obtained within 30 days of follow-up. Shock index prior to and immediately after NBCA-TAE were compared to determine changes in hemodynamics. Days to Forrest type III, as assessed by follow-up endoscopy, was used as an indicator of the healing process. Other clinical outcomes included days for starting ingestion and for hospital discharge. RESULTS Sixteen gastric and five duodenal ulcers, classified into Forrest type I, were treated. Immediate hemostasis was achieved in all the patients, and no re-bleeding occurred within the follow-up period. Shock index significantly (P < 0.001) improved from before (0.99 ± 0.076) to immediately after NBCA-TAE (0.67 ± 0.038). Sequential mucosal healing processes were observed in all the patients, and the number of days to Forrest type III was 9.6 ± 7.1. The number of days for starting ingestion and hospital discharge was 9.0 ± 4.5 and 15 ± 7.7 days, respectively. CONCLUSION NBCA-TAE is an effective and safe method for the control of nonvariceal upper GIH, in terms of contribution to hemodynamics and healing process of the gastroduodenal mucosa.
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Affiliation(s)
- Takahiko Mine
- Department of Radiology/Center for Advanced Medical Technology, Nippon Medical School, Tokyo
| | - S Murata
- Department of Radiology/Center for Advanced Medical Technology, Nippon Medical School, Tokyo
| | - K Nakazawa
- Department of Radiology/Center for Advanced Medical Technology, Nippon Medical School, Tokyo
| | - S Onozawa
- Department of Radiology/Center for Advanced Medical Technology, Nippon Medical School, Tokyo
| | - T Ueda
- Department of Radiology/Center for Advanced Medical Technology, Nippon Medical School, Tokyo
| | - M Miyauchi
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo
| | - S Morita
- Department of Gastrointestinal Internal Medicine, Fujisawa City Hospital, Kanagawa, Japan
| | - S Kumita
- Department of Radiology/Center for Advanced Medical Technology, Nippon Medical School, Tokyo
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Hachisuka T, Kinoshita T, Yamakawa T, Kurata N, Tsutsuyama M, Umeda S, Tokunaga S, Yarita A, Shibata M, Shimizu D, Shikano T, Hattori K, Mori T, Shinohara M, Miyauchi M. Transumbilical laparoscopic surgery using GelPort through an umbilical zigzag skin incision. Asian J Endosc Surg 2012. [PMID: 22776345 DOI: 10.1111/j.1758-5910] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION We report herein a new method of transumbilical laparoscopic surgery using a GelPort through an umbilical zigzag skin incision. The method involves collaborating with plastic surgeons to ensure the procedure was minimally invasive. MATERIALS AND SURGICAL TECHNIQUE After marking a zigzag skin incision in the umbilical region, the skin was incised along this line. Then, a GelPort double-ring wound retractor was inserted through the incision, which enlarged the diameter of the fascial opening to 6 cm. The Gelport was latched on the wound retractor ring, following the inflation of the pneumoperitoneum by CO (2). One or more additional ports were inserted as necessary. All operations were performed in the standard fashion. The specimen was easily extracted from the abdomen through the umbilical incision, and anastomosis was performed. Using the above method, we performed the following procedures: one total gastrectomy, one distal gastrectomy, three gastric local resections, five right hemicolectomies, two high anterior resections, three cholecystectomies, and seven transabdominal preperitoneal hernioplasties. All cases were accomplished without any complications using this method. The wounds of the umbilical region were almost "scarless" in all cases. DISCUSSION We developed an umbilical zigzag skin incision technique to perform abdominal laparoscopic operations using a GelPort, with a minimal number of skin incisions. We consider that our method reduces the technical difficulties associated with laparoscopic surgery and maintains cosmesis.
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Affiliation(s)
- T Hachisuka
- Department of General Surgery, Yokkaichi Municipal Hospital, Japan.
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Ogawa I, Takata T, Miyauchi M, Ito H, Zhao M, Kudo Y, Nikai H. nm23-H1 expression in salivary adenoid cystic carcinoma in relation to metastasis and survival. Oncol Rep 2012; 4:707-11. [PMID: 21590125 DOI: 10.3892/or.4.4.707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The expression of nm23-H1, product of putative metastasis suppressor gene, was evaluated immunohistochemically in 31 cases of adenoid cystic carcinoma (ACC) of salivary glands and correlated with their clinicopathologic features. All benign salivary gland tumors of various types, which were used as a non-metastatic control, showed obvious nm23-H1 expression. The immunoreactivity of tumor cells was stronger than that of normal salivary gland components, although the distribution patterns of positive cells considerably varied between tumor types. In ACC, 16 cases (52%) showed the reduction of nm23-H1 immunoreactivity either in positive cell frequency or staining intensity. These cases were referred to as negative cases. The incidence of negative cases was 67% (10/15) and 38% (6/16) of the cases with and without metastasis, respectively. Furthermore, metastatic tumors showed decreased immunoreactivity of this protein compared with their primary tumors. The prognosis of patients with a nm23 negative tumor was generally poorer than that with a positive tumor. These results may suggest that the reduction of nm23-H1 protein has an implication for metastasis of ACC.
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Affiliation(s)
- I Ogawa
- HIROSHIMA UNIV,SCH DENT,DEPT ORAL PATHOL,HIROSHIMA 734,JAPAN
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Miyauchi M, Murata M, Fukushima A, Sato T, Nakagawa M, Fujii T, Koseki N, Chiba N, Kashiwazaki Y. Optimization of cell-wall skeleton derived from Mycobacterium bovis BCG Tokyo 172 (SMP-105) emulsion in delayed-type hypersensitivity and antitumor models. Drug Discov Ther 2012; 6:218-225. [PMID: 23006993] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Cell-wall skeleton prepared from Mycobacterium bovis BCG (BCG-CWS) is known as a potent adjuvant and has been shown to possess antitumor activity in many non-clinical and clinical studies. As there are no approved BCG-CWS formulations for cancer therapy, we investigated the potential for cancer immunotherapy of SMP-105, our originally produced BCG-CWS. For optimizing SMP-105 emulsion, we compared the effects of drakeoland squalane-based SMP-105 emulsions on IFN-γ production in rats and evaluated their ability to induce skin reaction in guinea pigs. Both emulsions had the same activity in both experiments. We selected squalane as base material and produced two types of squalane-based formulations (vialed emulsion and pumped emulsion) that can easily be prepared as oil-in-water emulsions. Although the vialed emulsion showed the same pattern of distribution as a usual homogenized emulsion, the pumped emulsion showed more uniform distribution than the other two emulsions. Whereas both emulsions enhanced strong delayed type hypersensitivity (DTH) reaction in a mouse model, the pumped emulsion induced slightly smaller edema. Data on oil droplet size distribution suggest that few micrometer oil droplet size might be appropriate for oil-in-water microemulsion of SMP-105. The antitumor potency of SMP-105 emulsion was stronger than that of some of the launched toll-like receptor (TLR) agonists (Aldara cream, Picibanil, and Immunobladder). Aldara and Picibanil showed limited antitumor effectiveness, while Immunobladder had almost the same effect as SMP-105 at the highest dose, but needed about 10 times the amount of SMP-105. These findings first indicate that SMP-105 has great potential in cancer immunotherapy.
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Affiliation(s)
- M Miyauchi
- Pharmacology Research Laboratories, Dainippon Sumitomo Pharma Co., Ltd., Osaka-shi, Osaka, Japan.
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Oshiro A, Iseki S, Miyauchi M, Terashima T, Kawaguchi Y, Ikeda Y, Shinomura T. Lipopolysaccharide induces rapid loss of follicular dendritic cell-secreted protein in the junctional epithelium. J Periodontal Res 2012; 47:689-94. [DOI: 10.1111/j.1600-0765.2012.01482.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hachisuka T, Kinoshita T, Yamakawa T, Kurata N, Tsutsuyama M, Umeda S, Tokunaga S, Yarita A, Shibata M, Shimizu D, Shikano T, Hattori K, Mori T, Shinohara M, Miyauchi M. Transumbilical laparoscopic surgery using GelPort through an umbilical zigzag skin incision. Asian J Endosc Surg 2012; 5:50-2. [PMID: 22776345 DOI: 10.1111/j.1758-5910.2011.00113.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
INTRODUCTION We report herein a new method of transumbilical laparoscopic surgery using a GelPort through an umbilical zigzag skin incision. The method involves collaborating with plastic surgeons to ensure the procedure was minimally invasive. MATERIALS AND SURGICAL TECHNIQUE After marking a zigzag skin incision in the umbilical region, the skin was incised along this line. Then, a GelPort double-ring wound retractor was inserted through the incision, which enlarged the diameter of the fascial opening to 6 cm. The Gelport was latched on the wound retractor ring, following the inflation of the pneumoperitoneum by CO (2). One or more additional ports were inserted as necessary. All operations were performed in the standard fashion. The specimen was easily extracted from the abdomen through the umbilical incision, and anastomosis was performed. Using the above method, we performed the following procedures: one total gastrectomy, one distal gastrectomy, three gastric local resections, five right hemicolectomies, two high anterior resections, three cholecystectomies, and seven transabdominal preperitoneal hernioplasties. All cases were accomplished without any complications using this method. The wounds of the umbilical region were almost "scarless" in all cases. DISCUSSION We developed an umbilical zigzag skin incision technique to perform abdominal laparoscopic operations using a GelPort, with a minimal number of skin incisions. We consider that our method reduces the technical difficulties associated with laparoscopic surgery and maintains cosmesis.
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Affiliation(s)
- T Hachisuka
- Department of General Surgery, Yokkaichi Municipal Hospital, Japan.
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Shinzawa M, Maruyama Y, Qin J, Akiyama N, Miyauchi M, Yanai H, Takami M, Inoue JI, Akiyama T. Splenic extramedullary hemopoiesis caused by a dysfunctional mutation in the NF-κB-inducing kinase gene. Biochem Biophys Res Commun 2011; 414:773-8. [PMID: 22005462 DOI: 10.1016/j.bbrc.2011.10.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [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: 09/24/2011] [Accepted: 10/01/2011] [Indexed: 12/12/2022]
Abstract
NF-κB-inducing kinase (NIK) plays critical roles in the development of lymph nodes and Peyer's patches, and microarchitecture of the thymus and spleen via NF-κB activation. Alymphoplasia (aly/aly) mice have a point mutation in the NIK gene that causes a defect in the activation of an NF-κB member RelB. Here, we developed a novel method to determine the aly mutation by genetic typing using PCR. This method facilitated the easy establishment of a congeneic aly/aly mouse line. Indeed, we generated a mouse line with aly mutation on a BALB/cA background (BALB/cA-aly/aly). BALB/cA-aly/aly mice showed significant splenomegaly with extramedullary hemopoiesis, which was not significant in aly/aly mice on a C57BL/6 background. Interestingly, the splenomegaly and extramedullary hemopoiesis caused by the aly mutation was gender-dependent. These data together with previous reports on extramedullary hemopoiesis in RelB-deficient mice suggest that NIK-RelB signaling may be involved in the suppression of extramedullary hemopoiesis in adult mice.
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Affiliation(s)
- Miho Shinzawa
- Division of Cellular and Molecular Biology, Institute of Medical Science, University of Tokyo, 4-6-1 Shirokane-dai, Minato-ku, Tokyo 108-8639, Japan
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Rego EB, Inubushi T, Miyauchi M, Kawazoe A, Tanaka E, Takata T, Tanne K. Ultrasound stimulation attenuates root resorption of rat replanted molars and impairs tumor necrosis factor-α signaling in vitro. J Periodontal Res 2011; 46:648-54. [DOI: 10.1111/j.1600-0765.2011.01384.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ohara M, Miyauchi M, Tsuruda K, Takata T, Sugai M. Topical application of Aggregatibacter actinomycetemcomitans cytolethal distending toxin induces cell cycle arrest in the rat gingival epithelium in vivo. J Periodontal Res 2011; 46:389-95. [PMID: 21361960 DOI: 10.1111/j.1600-0765.2011.01348.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Aggregatibacter actinomycetemcomitans is one of the etiological pathogens implicated in the onset of periodontal disease. This pathogen produces cytolethal distending toxin (CDT) that acts as a genotoxin to induce cell cycle arrest and cellular distension in cultured cell lines. Therefore, CDT is a possible virulence factor; however, the in vivo activity of CDT on periodontal tissue has not been explored. Here, CDT was topically applied into the rat molar gingival sulcus; and the periodontal tissue was histologically and immunohistochemically examined. MATERIALS AND METHODS Recombinant purified A. actinomycetemcomitans CDT was applied to gingival sulcus of male Wistar rats and tissue samples were immunohistochemmically examined. RESULTS One day after application, infiltration of neutrophils and dilation of blood vessels in the gingival connective tissue were found. At day three, desquamation and detachment of cells in the junctional epithelium was observed. This abrasion of junctional epithelium was not observed in rats treated with mutated CDT, in which a His274Ala mutation is present in the CdtB subunit. This indicates the tissue abrasion may be caused by the genotoxicity of CdtB. Expression of the proliferating cell nuclear antigen (PCNA), a marker for proliferating cells, was significantly suppressed using CDT treatment in the junctional epithelium and gingival epithelium. CONCLUSION Using the rat model, these data suggest CDT intoxication induces cell cycle arrest and damage in periodontal epithelial cells in vivo.
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Affiliation(s)
- M Ohara
- Departments of Bacteriology, Hiroshima University Graduate School of Biomedical Sciences, Japan
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Nakamura Y, Tanaka KJ, Miyauchi M, Huang L, Tsujimoto M, Matsumoto K. Translational repression by the oocyte-specific protein P100 in Xenopus. Dev Biol 2010; 344:272-83. [PMID: 20471969 DOI: 10.1016/j.ydbio.2010.05.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2009] [Revised: 04/09/2010] [Accepted: 05/07/2010] [Indexed: 01/10/2023]
Abstract
The translational regulation of maternal mRNAs is one of the most important steps in the control of temporal-spatial gene expression during oocyte maturation and early embryogenesis in various species. Recently, it has become clear that protein components of mRNPs play essential roles in the translational regulation of maternal mRNAs. In the present study, we investigated the function of P100 in Xenopus oocytes. P100 exhibits sequence conservation with budding yeast Pat1 and is likely the orthologue of human Pat1a (also called PatL2). P100 is maternally expressed in immature oocytes, but disappears during oocyte maturation. In oocytes, P100 is an RNA binding component of ribosome-free mRNPs, associating with other mRNP components such as Xp54, xRAP55 and CPEB. Translational repression by overexpression of P100 occurred when reporter mRNAs were injected into oocytes. Intriguingly, we found that when P100 was overexpressed in the oocytes, the kinetics of oocyte maturation was considerably retarded. In addition, overexpression of P100 in oocytes significantly affected the accumulation of c-Mos and cyclin B1 during oocyte maturation. These results suggest that P100 plays a role in regulating the translation of specific maternal mRNAs required for the progression of Xenopus oocyte maturation.
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Affiliation(s)
- Yoriko Nakamura
- Laboratory of Cellular Biochemistry, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Miyauchi M, Murata M, Shibuya K, Koga-Yamakawa E, Yanagawa Y, Azuma I, Kashiwazaki Y. Phagocytosis plays a dual role in activating dendritic cells; digestive production of active Toll-like receptor ligands and cooperation with Toll-like receptor signaling. Drug Discov Ther 2010; 4:135-143. [PMID: 22491171] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Phagocytosis is an initial step in innate immunity, which is also stimulated by signals via Toll-like receptors (TLRs); however, the cooperation of phagocytosis with signals through TLRs to establish acquired immunity is unknown. We found that phagocytosis is an essential process to induce an immune reaction against an insoluble TLR ligand. Cell-wall skeleton prepared from Mycobacterium bovis BCG (BCG-CWS), an insoluble TLR2 ligand, activated and matured murine splenic dendritic cell (DC) line BC-1 as well as a soluble TLR2 ligand, Pam3CSK4. Surprisingly, BC-1 maturation with BCG-CWS was completely suppressed by inhibiting phagocytosis, while that with Pam3CSK4 was not affected. Moreover, BCGCWS induced intense delayed-type hypersensitivity (DTH) reactions against mitomycin C-inactivated Lewis lung carcinoma cells but Pam3CSK4 did not. These results suggested that the phagocytosis process enables the insoluble TLR2 ligand to activate DCs via TLR2 comparable to a soluble TLR2 ligand in vitro, and stimulating TLR2 alone is not sufficient to establish T cell-mediated immunity in vivo. It is therefore conceivable that the process of phagocytosis induces additional effects on TLR2-stimulated DCs to activate cellmediated immunity in vivo.
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Affiliation(s)
- M Miyauchi
- Pharmacology Research Laboratories, Drug Research Division, Dainippon Sumitomo Pharma Co., Ltd., Suita, Osaka, Japan
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Ekuni D, Yamanaka R, Yamamoto T, Miyauchi M, Takata T, Watanabe T. Effects of mechanical stimulation by a powered toothbrush on the healing of periodontal tissue in a rat model of periodontal disease. J Periodontal Res 2010; 45:45-51. [DOI: 10.1111/j.1600-0765.2009.01195.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Shimizu I, Miyauchi M, Yamazoe H, Yamane H, Yoshikawa T, Tsuzuki Y, Morie T, Yoshida N. 192 IDENTIFICATION AND CHARACTERIZATION OF DSR‐18424, A NOVEL SELECTIVE TRPV1 AGONIST. Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60195-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- I. Shimizu
- Pharmacology Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
| | - M. Miyauchi
- Pharmacology Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
| | - H. Yamazoe
- Pharmacology Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
| | - H. Yamane
- Pharmacology Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
| | - T. Yoshikawa
- Pharmacology Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
| | - Y. Tsuzuki
- Chemistry Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
| | - T. Morie
- Chemistry Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
| | - N. Yoshida
- Pharmacology Research Laboratories, Dainippon Sumitomo Pharma CO., LTD., Suita, Osaka, Japan
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Inubushi T, Tanaka E, Rego E, Kitagawa M, Kawazoe A, Ohta A, Okada H, Koolstra J, Miyauchi M, Takata T, Tanne K. Effects of Ultrasound on the Proliferation and Differentiation of Cementoblast Lineage Cells. J Periodontol 2008; 79:1984-90. [DOI: 10.1902/jop.2008.080081] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kashiwazaki Y, Murata M, Sato T, Miyauchi M, Nakagawa M, Fukushima A, Chiba N, Azuma I, Yamaoka T. Injection of cell-wall skeleton of Mycobacterium bovis BCG draining to a sentinel lymph node eliminates both lymph node metastases and the primary transplanted tumor. Drug Discov Ther 2008; 2:168-177. [PMID: 22504569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Based on recent developments in innate immunity, we focused on a microbial immunostimulator for cancer immunotherapy. If innate immunity is properly activated, tumor antigens distributed endogenously in cancer patients will be exploited to activate tumor immunity. We chose the cell-wall skeleton of M. bovis BCG (BCGCWS) and investigated the potential of monotherapy without exogenous tumor antigens. We used strain 2 guinea pigs bearing syngenic line 10 hepatoma, which is an excellent disease model of spontaneous lymph node metastasis, and examined the tumor-eradicating activity of highly purified BCG-CWS (SMP-105), excluding the effect of local inflammation on tumor growth. SMP-105 eliminated both established metastases and the implanted tumor, when injected into different but not distant sites from the tumor, whereas, when injected into the opposite side, neither metastases nor the primary tumor was eradicated. SMP-105 was observed in the draining lymph node engulfed by phagocytes, presumably macrophages or dendritic cells, but was not detected in distant lymph nodes or the spleen. It took about 2 weeks until the tumor-eliminating effect was observed. Taken together it is considered that macrophages or dendritic cells were activated by SMP-105 and encountered tumor cells in the sentinel lymph node to generate tumor immunity during the lag time. In conclusion, we suggested the potential of mono-therapy with a strong immunostimulator and that SMP-105 is a most promising agent for cancer immunotherapy. Separate injection from tumor draining to a sentinel lymph node using classical guinea pig models will be a useful method for investigating immunostimulators.
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Affiliation(s)
- Y Kashiwazaki
- Pharmacology Research Laboratories, Drug Research Division, Dainippon Sumitomo Pharma Co., Ltd., Osaka, Japan
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Miyauchi M, Suda K, Kuwayama C, Abe H, Kakinuma C. Role of fibrosis-related genes and pancreatic duct obstruction in rat pancreatitis models: implications for chronic pancreatitis. Histol Histopathol 2007; 22:1119-27. [PMID: 17616939 DOI: 10.14670/hh-22.1119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Human chronic pancreatitis is characterized by irreversible fibrosis, whereas pancreatic fibrosis in animal models is reversible. In this study, we compare the development of pancreatic fibrosis in the dibutyltin dichloride (DBTC) model, WBN/Kob rats and bile duct-ligated (BDL) rats. DBTC (8 mg/kg) was administered to LEW rats, and the pancreas was histopathologically investigated sequentially. Male and female WBN/Kob rats aged 4, 6 and 8 months were also examined. BDL rats were prepared by ligation of the bile duct at the duodenal portion and sacrificed at 3 or 7 days after ligation. Fibrosis in the DBTC model peaked after 1 week and was limited to the areas around the pancreatic ducts after 2 weeks, and was composed of both type I and type III collagen. In contrast, fibrosis in male WBN/Kob rats peaked at age 4 months, expanded into intralobular area, and was composed of type III collagen. It exhibited almost no type I collagen and a marked tendency to regress. Pancreatic fibrosis in BDL rats was somewhat difficult to induce and required increased stimulation. This suggests that fibrosis in human biliary pancreatitis may gradually form based on weak, continuous stimulation. We conclude that type I collagen may be involved in the progression of irreversible fibrosis. The imbalance between synthesis and degradation of extracellular matrix molecules or degree of stimulation over a certain period may lead to pancreatic fibrosis. Gene expressions of prolyl hydroxylase and tissue inhibitors of matrix metalloproteinase-2 were elevated.
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Affiliation(s)
- M Miyauchi
- Department of Pathology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan.
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Kaneshiro K, Miyauchi M, Tanigawa Y, Ikenishi K, Komiya T. The mRNA coding for Xenopus glutamate receptor interacting protein 2 (XGRIP2) is maternally transcribed, transported through the late pathway and localized to the germ plasm. Biochem Biophys Res Commun 2007; 355:902-6. [PMID: 17320814 DOI: 10.1016/j.bbrc.2007.02.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 01/27/2007] [Accepted: 02/11/2007] [Indexed: 10/23/2022]
Abstract
Using a large-scale in situ hybridization screening, we found that the mRNA coding for Xenopus glutamate receptor interacting protein 2 (XGRIP2) was localized to the germ plasm of Xenopus laevis. The mRNA is maternally transcribed in oocytes and, during maturation, transported to the vegetal germ plasm through the late pathway where VegT and Vg1 mRNAs are transported. In the 3'-untranslated region (UTR) of the mRNA, there are clusters of E2 and VM1 localization motifs that were reported to exist in the mRNAs classified as the late pathway group. With in situ hybridization to the sections of embryos, the signal could be detected in the cytoplasm of migrating presumptive primordial germ cells (pPGCs) until stage 35. At stage 40, when the cells cease to migrate and reach the dorsal mesentery, the signal disappeared. A possible role of XGRIP2 in pPGCs of Xenopus will be discussed.
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Affiliation(s)
- Kazuki Kaneshiro
- Department of Biological Function, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
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Natsume J, Bernasconi N, Miyauchi M, Naiki M, Yokotsuka T, Sofue A, Bernasconi A. Hippocampal volumes and diffusion-weighted image findings in children with prolonged febrile seizures. Acta Neurol Scand 2007; 115:25-8. [PMID: 17362273 DOI: 10.1111/j.1600-0404.2007.00806.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To assess hippocampal volumes (HV) and signal changes on diffusion-weighted imaging (DWI) within 5 days of prolonged febrile seizures (PFS) and compare them with the PFS duration and EEG. METHODS We studied 12 children (mean age: 32 +/- 21 months, range 10 months-5 years) within 5 days of a first episode of PFS (a seizure or series of seizures lasting for 30 min or longer, without return of consciousness between the seizures). The HV measurements were carried out using high-resolution magnetic resonance imaging and signal intensity abnormalities were evaluated visually on DWI. HV in patients were compared with those of 13 neurologically normal controls (mean age 31 +/- 16 months, range 15 months-5 years). HV abnormalities correlated with PFS duration. HV and DWI abnormalities were compared with EEG abnormalities. RESULTS Seizure duration ranged from 40 to 95 min. In seven out of twelve patients, seizures were refractory and lasted for 60 min or longer despite intravenous infusion of diazepam. In the patients with PFS for 60 min or longer, HV were significantly larger than that of controls. In all patients, there was a positive correlation between HV and seizure duration. DWI showed hyperintensity in unilateral hippocampus in three patients with intractable seizures, ipsilateral thalamus in two, and cingulate in one. EEG showed abnormalities in temporal areas ipsilateral to the DWI abnormalities in these patients. CONCLUSIONS Large HV and hippocampal hyperintensity on DWI were seen in patients with refractory PFS. Our results suggest that medically refractory PFS lasting for 60 min or longer may cause structural changes in limbic structures that could promote later epileptogenesis.
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Affiliation(s)
- J Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
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Takahashi M, Ozaki T, Takahashi A, Miyauchi M, Ono S, Takada N, Koda T, Todo S, Kamijo T, Nakagawara A. DFF45/ICAD restores cisplatin-induced nuclear fragmentation but not DNA cleavage in DFF45-deficient neuroblastoma cells. Oncogene 2007; 26:5669-73. [PMID: 17353905 DOI: 10.1038/sj.onc.1210352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have previously defined a homozygously deleted region at chromosome 1p36.2-p36.3 in human neuroblastoma cell lines, NB-1 and NB-C201, and identified six genes including DFF45/ICAD within this region. In this study, we found that NB-C201 cells are much more resistant to various genotoxic stresses such as cisplatin (CDDP) than CHP134 and SH-SY5Y cells that do not have the homozygous deletion. To examine a role(s) of DFF45 in the regulation of apoptosis in response to CDDP, we have established stably DFF45-expressing NB-C201 cell clones (DFF45-1 and DFF45-3) and a control cell clone (NB-C201-C) using a retrovirus-mediated gene transfer. In contrast to NB-C201-C cells, DFF45-3 cells displayed apoptotic nuclear fragmentation in response to CDDP. Although CDDP-induced proteolytic cleavage of procaspase-3 and DFF45 in DFF45-3 cells, we could not detect a typical apoptotic DNA fragmentation. Additionally, deletion analysis revealed that C-terminal region of DFF45 is required for inducing nuclear fragmentation. Unexpectedly, (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays demonstrated that DFF45 has undetectable effect on CDDP sensitivity of NB-C201 cells. Taken together, our present results suggest that DFF45/DFF40 system may be sufficient for CDDP-induced nuclear fragmentation but not DNA cleavage.
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Affiliation(s)
- M Takahashi
- Division of Biochemistry, Chiba Cancer Center Research Institute, Chiba, Japan
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Natsume J, Bernasconi N, Miyauchi M, Naiki M, Yokotsuka T, Sofue A, Bernasconi A. Hippocampal volumes and diffusion-weighted image findings in children with prolonged febrile seizures. Acta Neurol Scand Suppl 2007; 186:25-8. [PMID: 17784534] [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] [Indexed: 05/17/2023]
Abstract
OBJECTIVES To assess hippocampal volumes (HV) and signal changes on diffusion-weighted imaging (DWI) within 5 days of prolonged febrile seizures (PFS) and compare them with the PFS duration and EEG. METHODS We studied 12 children (mean age: 32 +/- 21 months, range 10 months-5 years) within 5 days of a first episode of PFS (a seizure or series of seizures lasting for 30 min or longer, without return of consciousness between the seizures). The HV measurements were carried out using high-resolution magnetic resonance imaging and signal intensity abnormalities were evaluated visually on DWI. HV in patients were compared with those of 13 neurologically normal controls (mean age 31 +/- 16 months, range 15 months-5 years). HV abnormalities correlated with PFS duration. HV and DWI abnormalities were compared with EEG abnormalities. RESULTS Seizure duration ranged from 40 to 95 min. In seven out of twelve patients, seizures were refractory and lasted for 60 min or longer despite intravenous infusion of diazepam. In the patients with PFS for 60 min or longer, HV were significantly larger than that of controls. In all patients, there was a positive correlation between HV and seizure duration. DWI showed hyperintensity in unilateral hippocampus in three patients with intractable seizures, ipsilateral thalamus in two, and cingulate in one. EEG showed abnormalities in temporal areas ipsilateral to the DWI abnormalities in these patients. CONCLUSIONS Large HV and hippocampal hyperintensity on DWI were seen in patients with refractory PFS. Our results suggest that medically refractory PFS lasting for 60 min or longer may cause structural changes in limbic structures that could promote later epileptogenesis.
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Affiliation(s)
- J Natsume
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
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Mada Y, Miyauchi M, Oka H, Kitagawa M, Sakamoto K, Iizuka S, Sato S, Noguchi K, Somerman MJ, Takata T. Effects of Endogenous and Exogenous Prostaglandin E2on the Proliferation and Differentiation of a Mouse Cementoblast Cell Line (OCCM-30). J Periodontol 2006; 77:2051-8. [PMID: 17209790 DOI: 10.1902/jop.2006.060148] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Cementum formation is considered to be a critical event for successful regeneration of periodontal tissues. Cementoblasts share many characteristics with osteoblasts. Prostaglandin E(2) (PGE(2)) is an important local factor in bone metabolism. Although the effects of PGE(2) on osteoblasts are well known, its effects on cementoblasts have not yet been established. We examined the effects of PGE(2) on proliferation and differentiation in a mouse cementoblast cell line, OCCM-30 cells. METHODS OCCM-30 cells were treated with three concentrations of PGE(2) (10, 100, and 1,000 ng/ml). Cell number, alkaline phosphatase (ALP) activity, and expression for mineralization-related genes were determined. Osteoprotegerin (OPG) and receptor activator of nuclear factor-kappa B (NF-kappaB) ligand (RANKL) expression were also examined by real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). RESULTS The addition of PGE(2) at the highest dose used in this study suppressed cell proliferation of OCCM-30 cells. The expression of mineralization-related marker mRNA, such as type 1 collagen, ALP, bone sialoprotein (BSP), and osteocalcin (OCN), was constitutively detected in OCCM-30 cells. PGE(2) dose dependently stimulated ALP activity and BSP-mRNA expression in OCCM-30 cells at day 3. Transcripts for OPG and RANKL and the protein level of OPG in culture media were upregulated with PGE(2) stimulation. CONCLUSION These results demonstrate that PGE(2) suppressed cementoblast proliferation but stimulated ALP activity and the BSP-mRNA level, suggesting a role of PGE(2) in controlling cementoblast differentiation, and further indicate that PGE(2) modulates RANKL and OPG expression in cementoblasts; the increase of OPG secreted from cementoblasts with PGE(2) stimulation may be essential to protect the root surface from resorption.
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Affiliation(s)
- Y Mada
- Department of Oral Maxillofacial Pathobiology, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
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Siriwardena BSMS, Kudo Y, Ogawa I, Kitagawa M, Kitajima S, Hatano H, Tilakaratne WM, Miyauchi M, Takata T. Periostin is frequently overexpressed and enhances invasion and angiogenesis in oral cancer. Br J Cancer 2006; 95:1396-403. [PMID: 17060937 PMCID: PMC2360586 DOI: 10.1038/sj.bjc.6603431] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Oral squamous-cell carcinoma (OSCC) is one of the most common types of human cancer. Typically OSCC cells show persistent invasion that frequently leads to local recurrence and distant lymphatic metastasis. We previously identified Periostin as the gene demonstrating the highest fold change expression in the invasive clone by comparing the transcriptional profile of parent OSCC cell line and a highly invasive clone. Here, we demonstrated that Periostin overexpression enhanced invasiveness in oral cancer cell lines. To know the role of Periostin in invasion, angiogenesis and metastasis in OSCC cases, we first examined the expression of Periostin mRNA in 31 OSCC cases by RT-PCR and Periostin protein in 74 OSCC cases by immunohistochemistry. Then, we compared the Periostin expression with invasion pattern, metastasis and blood vessel density. Periostin mRNA and protein overexpression were frequently found in OSCC cases and Periostin expression was well correlated with the invasion pattern and metastasis. Moreover, blood vessel density of Periostin-positive cases was higher than those of Periostin-negative cases. Interestingly, recombinant Periostin enhanced capillary formation in vitro in a concentration-dependant manner. In summary, these findings suggest that Periostin may promote invasion and angiogenesis in OSCC, and that Periostin can be a strong marker for prediction of metastasis in oral cancer patients.
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MESH Headings
- Biomarkers, Tumor
- Carcinoma, Squamous Cell/blood supply
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/secondary
- Cell Adhesion/physiology
- Cell Adhesion Molecules/genetics
- Cell Adhesion Molecules/metabolism
- Cells, Cultured
- Disease Progression
- Endothelium, Vascular/cytology
- Endothelium, Vascular/metabolism
- Gene Expression Regulation, Neoplastic
- Humans
- Lymphatic Metastasis
- Mouth Neoplasms/blood supply
- Mouth Neoplasms/genetics
- Mouth Neoplasms/pathology
- Neoplasm Invasiveness/pathology
- Neovascularization, Pathologic/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Umbilical Veins/cytology
- Umbilical Veins/metabolism
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Affiliation(s)
- B S M S Siriwardena
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
- Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - Y Kudo
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
- E-mail:
| | - I Ogawa
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima University, Hiroshima 734-8553, Japan
| | - M Kitagawa
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima University, Hiroshima 734-8553, Japan
| | - S Kitajima
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - H Hatano
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - W M Tilakaratne
- Department of Oral Pathology, Faculty of Dental Sciences, University of Peradeniya, Sri Lanka
| | - M Miyauchi
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - T Takata
- Department of Oral Maxillofacial Pathobiology, Division of Frontier Medical Science, Graduate School of Biomedical Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
- E-mail:
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