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Matoba K, Nagai Y, Sekiguchi K, Ohashi S, Mitsuyoshi E, Shimoda M, Tachibana T, Kawanami D, Yokota T, Utsunomiya K, Nishimura R. Deletion of podocyte Rho-associated, coiled-coil-containing protein kinase 2 protects mice from focal segmental glomerulosclerosis. Commun Biol 2024; 7:402. [PMID: 38565675 PMCID: PMC10987559 DOI: 10.1038/s42003-024-06127-3] [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: 07/19/2023] [Accepted: 03/29/2024] [Indexed: 04/04/2024] Open
Abstract
Focal segmental glomerulosclerosis (FSGS) shares podocyte damage as an essential pathological finding. Several mechanisms underlying podocyte injury have been proposed, but many important questions remain. Rho-associated, coiled-coil-containing protein kinase 2 (ROCK2) is a serine/threonine kinase responsible for a wide array of cellular functions. We found that ROCK2 is activated in podocytes of adriamycin (ADR)-induced FSGS mice and cultured podocytes stimulated with ADR. Conditional knockout mice in which the ROCK2 gene was selectively disrupted in podocytes (PR2KO) were resistant to albuminuria, glomerular sclerosis, and podocyte damage induced by ADR injection. In addition, pharmacological intervention for ROCK2 significantly ameliorated podocyte loss and kidney sclerosis in a murine model of FSGS by abrogating profibrotic factors. RNA sequencing of podocytes treated with a ROCK2 inhibitor proved that ROCK2 is a cyclic nucleotide signaling pathway regulator. Our study highlights the potential utility of ROCK2 inhibition as a therapeutic option for FSGS.
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Affiliation(s)
- Keiichiro Matoba
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan.
| | - Yosuke Nagai
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Kensuke Sekiguchi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Shinji Ohashi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Etsuko Mitsuyoshi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Masayuki Shimoda
- Department of Pathology, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Toshiaki Tachibana
- Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Daiji Kawanami
- Department of Endocrinology and Diabetes, Fukuoka University School of Medicine, Fukuoka, 814-0180, Japan
| | - Tamotsu Yokota
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | | | - Rimei Nishimura
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
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Tachibana T, Hoshi D, Nagashima Y. Erratum: Molecular Ion Desorption from LiF(110) Surfaces by Positron Annihilation [Phys. Rev. Lett. 131, 143201 (2023)]. Phys Rev Lett 2024; 132:079901. [PMID: 38427902 DOI: 10.1103/physrevlett.132.079901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Indexed: 03/03/2024]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.131.143201.
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Tachibana T, Hoshi D, Nagashima Y. Molecular Ion Desorption from LiF(110) Surfaces by Positron Annihilation. Phys Rev Lett 2023; 131:143201. [PMID: 37862658 DOI: 10.1103/physrevlett.131.143201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 09/02/2023] [Accepted: 09/11/2023] [Indexed: 10/22/2023]
Abstract
We have studied the desorption of positive ions from a LiF(110) crystal surface using positron and electron irradiation at 500 eV to examine the interaction between positrons and ionic crystals. Only monatomic ions, such as H^{+}, Li^{+}, and F^{+}, are detected under electron irradiation. However, positron irradiation leads to the significant desorption of ionic molecules, specifically, FH^{+} and F_{2}^{+}. Molecular ion yields are more sensitive to temperature than atomic ion yields. Based on the findings, we propose a desorption model in which positronic compounds are initially produced at the surface and subsequently desorbed as molecular ions via Auger decay following positron annihilation.
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Affiliation(s)
- T Tachibana
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - D Hoshi
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
| | - Y Nagashima
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, Japan
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Tsuboi Y, Oyama K, Kobirumaki-Shimozawa F, Murayama T, Kurebayashi N, Tachibana T, Manome Y, Kikuchi E, Noguchi S, Inoue T, Inoue YU, Nishino I, Mori S, Ishida R, Kagechika H, Suzuki M, Fukuda N, Yamazawa T. Mice with R2509C-RYR1 mutation exhibit dysfunctional Ca2+ dynamics in primary skeletal myocytes. J Gen Physiol 2022; 154:213526. [PMID: 36200983 PMCID: PMC9546722 DOI: 10.1085/jgp.202213136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 07/22/2022] [Accepted: 09/14/2022] [Indexed: 11/20/2022] Open
Abstract
Type 1 ryanodine receptor (RYR1) is a Ca2+ release channel in the sarcoplasmic reticulum (SR) of the skeletal muscle and plays a critical role in excitation-contraction coupling. Mutations in RYR1 cause severe muscle diseases, such as malignant hyperthermia, a disorder of Ca2+-induced Ca2+ release (CICR) through RYR1 from the SR. We recently reported that volatile anesthetics induce malignant hyperthermia (MH)-like episodes through enhanced CICR in heterozygous R2509C-RYR1 mice. However, the characterization of Ca2+ dynamics has yet to be investigated in skeletal muscle cells from homozygous mice because these animals die in utero. In the present study, we generated primary cultured skeletal myocytes from R2509C-RYR1 mice. No differences in cellular morphology were detected between wild type (WT) and mutant myocytes. Spontaneous Ca2+ transients and cellular contractions occurred in WT and heterozygous myocytes, but not in homozygous myocytes. Electron microscopic observation revealed that the sarcomere length was shortened to ∼1.7 µm in homozygous myocytes, as compared to ∼2.2 and ∼2.3 µm in WT and heterozygous myocytes, respectively. Consistently, the resting intracellular Ca2+ concentration was higher in homozygous myocytes than in WT or heterozygous myocytes, which may be coupled with a reduced Ca2+ concentration in the SR. Finally, using infrared laser-based microheating, we found that heterozygous myocytes showed larger heat-induced Ca2+ transients than WT myocytes. Our findings suggest that the R2509C mutation in RYR1 causes dysfunctional Ca2+ dynamics in a mutant-gene dose-dependent manner in the skeletal muscles, in turn provoking MH-like episodes and embryonic lethality in heterozygous and homozygous mice, respectively.
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Affiliation(s)
- Yoshitaka Tsuboi
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan.,Department of Molecular Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Kotaro Oyama
- Quantum Beam Science Research Directorate, National Institutes for Quantum Science and Technology, Gunma, Japan.,Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | | | - Takashi Murayama
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nagomi Kurebayashi
- Department of Cellular and Molecular Pharmacology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Toshiaki Tachibana
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshinobu Manome
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Emi Kikuchi
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Satoru Noguchi
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Takayoshi Inoue
- Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yukiko U Inoue
- Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Shuichi Mori
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ryosuke Ishida
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo, Japan
| | - Madoka Suzuki
- Institute for Protein Research, Osaka University, Osaka, Japan
| | - Norio Fukuda
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiko Yamazawa
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan.,Department of Molecular Physiology, The Jikei University School of Medicine, Tokyo, Japan
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Matoba K, Takeda Y, Nagai Y, Sekiguchi K, Ukichi R, Takahashi H, Aizawa D, Ikegami M, Tachibana T, Kawanami D, Kanazawa Y, Yokota T, Utsunomiya K, Nishimura R. ROCK2-induced metabolic rewiring in diabetic podocytopathy. Commun Biol 2022; 5:341. [PMID: 35396346 PMCID: PMC8993857 DOI: 10.1038/s42003-022-03300-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 05/28/2021] [Accepted: 03/22/2022] [Indexed: 12/26/2022] Open
Abstract
Loss of podocytes is a common feature of diabetic renal injury and a key contributor to the development of albuminuria. We found that podocyte Rho associated coiled-coil containing protein kinase 2 (ROCK2) is activated in rodent models and patients with diabetes. Mice that lacked ROCK2 only in podocytes (PR2KO) were resistant to albuminuria, glomerular fibrosis, and podocyte loss in multiple animal models of diabetes (i.e., streptozotocin injection, db/db, and high-fat diet feeding). RNA-sequencing of ROCK2-null podocytes provided initial evidence suggesting ROCK2 as a regulator of cellular metabolism. In particular, ROCK2 serves as a suppressor of peroxisome proliferator-activated receptors α (PPARα), which rewires cellular programs to negatively control the transcription of genes involved in fatty acid oxidation and consequently induce podocyte apoptosis. These data establish ROCK2 as a nodal regulator of podocyte energy homeostasis and suggest this signaling pathway as a promising target for the treatment of diabetic podocytopathy. ROCK2 is found to be activated in 3 diabetic models and patients with diabetes. ROCK2 deletion in podocytes protects against diabetic kidney injury, with the beneficial effect of ROCK2 inhibition observed due to rescued PPARα signaling, leading to a recovery of fatty acid metabolism.
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Affiliation(s)
- Keiichiro Matoba
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan.
| | - Yusuke Takeda
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Yosuke Nagai
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Kensuke Sekiguchi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Rikako Ukichi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Hiroshi Takahashi
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Daisuke Aizawa
- Department of Pathology, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Masahiro Ikegami
- Department of Pathology, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Toshiaki Tachibana
- Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Daiji Kawanami
- Department of Endocrinology and Diabetes Mellitus, Fukuoka University School of Medicine, Fukuoka, 814-0180, Japan
| | - Yasushi Kanazawa
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Tamotsu Yokota
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Kazunori Utsunomiya
- Center for Preventive Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
| | - Rimei Nishimura
- Division of Diabetes, Metabolism and Endocrinology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, 105-8461, Japan
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Fushimi A, Takeyama H, Tachibana T, Manome Y. Abstract P5-12-04: Osteogenic cocktail induces calcifications in human breast cancer cell line via placental alkaline phosphatase expression. Cancer Res 2022. [DOI: 10.1158/1538-7445.sabcs21-p5-12-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Breast cancer is frequently characterized by calcifications in mammography. Although breast calcifications were previously thought to be produced passively as the final stage of cell regression, recent studies have shown active production. In another context, vascular smooth muscle cells have been found to produce vascular calcifications by acquiring osteoblast-like characteristics. The same mechanism has been suggested to account for breast calcifications. A report showed that breast calcifications are clearly generated by the mouse breast cancer cell line 4T1 through osteoblast-like characteristics. However, the details underlying such a mechanism of mammary calcification is unknown. Understanding this mechanism will improve diagnostic accuracy for breast cancer. We induced calcifications using osteogenic cocktail on the human breast cancer cell line MDA-MB-231. Our hypothesis was that breast cancer calcifications are generated in a process similar to that of osteoblast differentiation. By a comprehensive analysis of transcription compared with osteoblastic cell line MC3T3-E1 in a microarray, we showed that placental alkaline phosphatase (PLAP) is involved in producing calcifications through PI3K-Akt signaling pathways. Herein, we demonstrated that calcifications occur and that alkaline phosphatase enzyme activity increases in MDA-MB-231 cells cultured using an osteogenic cocktail-containing medium. Microarray transcript analysis showed that the PI3K-Akt signaling pathway was significantly involved, with recruitment of placental alkaline phosphatase. Calcifications and alkaline phosphatase enzyme activity were suppressed by silencing placental alkaline phosphatase using a small interfering RNA. Inhibition of the PI3K-Akt signaling pathway suppressed phospho-c-Jun and placental alkaline phosphatase and resulted in absence of calcifications. These findings reveal that breast cancer cells acquire alkaline phosphatase enzyme activity via placental alkaline phosphatase expression and suggest that breast calcification formation is closely associated with the PI3K-Akt signaling pathway. Our results suggest that PLAP produces ALP enzyme activity required for calcification in MDA-MB-231 cells. PLAP is clinically expressed in some breast cancers. A report showed that dexamethasone induces PLAP enzyme activity and mRNA in the human breast cancer BC-M1 cell line. Therefore, dexamethasone in osteogenic cocktail may be associated with PLAP expression in the MDA-MB-231 cells. On the other hand, c-Jun binds to the promoter region of ALPP in MDA-MB-231, and we showed that c-Jun phosphorylation appears in MDA-MB-231 cells cultured using osteogenic cocktail. We suggest that PLAP transcript would be activated when phospho-c-Jun enters the nucleus and binds to the promoter region of PLAP. Our proposed mechanism in breast calcifications is that osteogenic cocktail induces c-Jun phosphorylation via PI3K-Akt signaling pathway and that PLAP transcription would be activated when phospho-c-Jun enters the nucleus and binds to the promoter region of PLAP. Future research might assess whether increased PLAP levels are the main driver of intracellular calcifications in breast cancer, as well as whether the PI3K-Akt signaling pathway has a similar effect in vivo that we demonstrated to cause calcifications in vitro.
Citation Format: Atsushi Fushimi, Hiroshi Takeyama, Toshiaki Tachibana, Yoshinobu Manome. Osteogenic cocktail induces calcifications in human breast cancer cell line via placental alkaline phosphatase expression [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P5-12-04.
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Takeuchi-Igarashi H, Tachibana T, Murakashi E, Kubota S, Numabe Y. Effect of cellular communication network factor 2/connective tissue growth factor on tube formation by endothelial cells derived from human periodontal ligaments. Arch Oral Biol 2021; 132:105279. [PMID: 34628139 DOI: 10.1016/j.archoralbio.2021.105279] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 09/29/2021] [Accepted: 09/29/2021] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To clarify the role of cellular communication network factor 2/connective tissue growth factor (CCN2/CTGF) in periodontal tissue regeneration by investigating, the proliferative and tubulogenic responses of human endothelial cells obtained from the periodontal ligament to CCN2/CTGF. DESIGN Endothelial cells were seeded on agar gel medium with or without 50 ng/mL recombinant CCN2/CTGF (rCCN2/CTGF) and cultured for 6 h. Cells were morphologically and phenotypically analyzed by immunofluorescent microscopy. A colorimetric assay was used to evaluate cell proliferation, and transmission electron microscopy (TEM) was used for ultrastructural analysis. RESULTS The proliferation of endothelial cells was best promoted by rCCN2/CTGF at 50 ng/mL. In the control group, tube formation was not observed within 6 h. In contrast, endothelial cells seeded on the agar with 50 ng/mL rCCN2/CTGF clearly showed proliferation with network formation. Under a two-dimensional culture condition, a dense network of endothelial cells was not constructed on the plastic bottom. However, drastic morphological change was observed in the endothelial cells on the agar containing rCCN2/CTGF. The endothelial cells in the dense network were interconnected with each other and showed a tube-like structure. Tight junctions or adherens junctions were observed between the adjoining endothelial cells in the dense network. CONCLUSIONS CCN2/CTGF was found to promote the proliferation and tubulogenesis of endothelial cells from the periodontal ligament. These results suggest that CCN2/CTGF may contribute to the regeneration of damaged periodontal tissue by activating the remaining endothelial cells.
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Affiliation(s)
- Hiroko Takeuchi-Igarashi
- Department of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan; Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Toshiaki Tachibana
- Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo 105-8461, Japan.
| | - Etsuko Murakashi
- Department of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan.
| | - Satoshi Kubota
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8525, Japan.
| | - Yukihiro Numabe
- Department of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo 102-8159, Japan.
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Koyama M, Osada E, Takemura Y, Saito H, Kikuchi E, Nomura M, Sugimitsu K, Akiyama N, Kuwata GO, Ikeda KI, Tachibana T, Manome Y. Gelatin Sponge as an Anchorage for Three-dimensional Culture of Colorectal Cancer Cells. Anticancer Res 2021; 41:4259-4269. [PMID: 34475045 DOI: 10.21873/anticanres.15230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/19/2021] [Accepted: 07/22/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND Compared to two-dimensional cultures, three-dimensional (3D) cultures have many advantages in cancer studies. Nevertheless, their implementation is unsatisfactory. This study aimed to develop an anchorage-dependent 3D culture model for colorectal cancer research. MATERIALS AND METHODS Human HCT116, DLD-1 and SW620 colorectal cell lines were cultured in a gelatin sponge, and its applicability for morphological examination was studied. RESULTS The resulting specimens were suitable for scanning electron microscopy, transmission electron microscopy, and immunohistochemical examination. HCT116 formed smaller structures and migrated through the pores of the sponge. DLD-1 formed larger structures with tight cell-to-cell adhesion. SW620 also formed large structures but small clustered cells tended to attach to the anchorage more favorably. Immunohistochemical staining demonstrated phosphorylated yes-associated protein (YAP) localized near the attachment site in HCT116 cells. CONCLUSION Because the gelatin sponge provided suitable anchorage and the cultured cells formed distinguishable 3D structures, this method may be useful for further colorectal cancer research.
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Affiliation(s)
- Muneyuki Koyama
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Erika Osada
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuki Takemura
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Hideki Saito
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Emi Kikuchi
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Mayumi Nomura
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazunari Sugimitsu
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobutake Akiyama
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - G O Kuwata
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Kei-Ichi Ikeda
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiaki Tachibana
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshinobu Manome
- Core Research Facilities, The Jikei University School of Medicine, Tokyo, Japan
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Abstract
1. The purpose of the present study was to examine whether zymosan, which is a component of fungi, affects feed passage through the digestive tract in chicks (Gallus gallus).2. Intraperitoneal (IP) injection of 2.5 mg zymosan significantly reduced the crop-emptying rate and this effect was similar to that of 100 µg lipopolysaccharide (LPS). Zymosan affected phenol red transit from the proventriculus.3. Zymosan significantly affected the gene expression of interleukin-1β (IL-1β), IL-6, IL-8 and histidine decarboxylase in various regions of the digestive tract.4. The present study suggested that zymosan retarded feed passage through the digestive tract in chick and interleukins and histamine may be participating in this process.
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Affiliation(s)
- T Tachibana
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - M Takahashi
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - K Takeda
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - M Ogino
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - M S I Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon, Japan
| | - R Makino
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - M A Cline
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
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Yamada K, Oikawa T, Kizawa R, Motohashi S, Yoshida S, Kumamoto T, Saeki C, Nakagawa C, Shimoyama Y, Aoki K, Tachibana T, Saruta M, Ono M, Yoshida K. Unconventional Secretion of PKCδ Exerts Tumorigenic Function via Stimulation of ERK1/2 Signaling in Liver Cancer. Cancer Res 2020; 81:414-425. [PMID: 33318039 DOI: 10.1158/0008-5472.can-20-2009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 10/02/2020] [Accepted: 11/18/2020] [Indexed: 11/16/2022]
Abstract
Expression of human protein kinase C delta (PKCδ) protein has been linked to many types of cancers. PKCδ is known to be a multifunctional PKC family member and has been rigorously studied as an intracellular signaling molecule. Here we show that PKCδ is a secretory protein that regulates cell growth of liver cancer. Full-length PKCδ was secreted to the extracellular space in living liver cancer cells under normal cell culture conditions and in xenograft mouse models. Patients with liver cancer showed higher levels of serum PKCδ than patients with chronic hepatitis or liver cirrhosis or healthy individuals. In liver cancer cells, PKCδ secretion was executed in an endoplasmic reticulum (ER)-Golgi-independent manner, and the inactivation status of cytosolic PKCδ was required for its secretion. Furthermore, colocalization studies showed that extracellular PKCδ was anchored on the cell surface of liver cancer cells via association with glypican 3, a liver cancer-related heparan sulfate proteoglycan. Addition of exogenous PKCδ activated IGF-1 receptor (IGF1R) activation and subsequently enhanced activation of ERK1/2, which led to accelerated cell growth in liver cancer cells. Conversely, treatment with anti-PKCδ antibody attenuated activation of both IGF1R and ERK1/2 and reduced cell proliferation and spheroid formation of liver cancer cells and tumor growth in xenograft mouse models. This study demonstrates the presence of PKCδ at the extracellular space and the function of PKCδ as a growth factor and provides a rationale for the extracellular PKCδ-targeting therapy of liver cancer. SIGNIFICANCE: PKCδ secretion from liver cancer cells behaves as a humoral growth factor that contributes to cell growth via activation of proliferative signaling molecules, which may be potential diagnostic or therapeutic targets.
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Affiliation(s)
- Kohji Yamada
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Tsunekazu Oikawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Ryusuke Kizawa
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Saya Motohashi
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Saishu Yoshida
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Tomotaka Kumamoto
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Chisato Saeki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Chika Nakagawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Yuya Shimoyama
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Katsuhiko Aoki
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Toshiaki Tachibana
- Core Research Facilities for Basic Science, Research Center for Medical Sciences, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Masaya Ono
- Department of Clinical Proteomics, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
| | - Kiyotsugu Yoshida
- Department of Biochemistry, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan.
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11
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Yamada Y, Kusakari Y, Akaoka M, Watanabe M, Tanihata J, Nishioka N, Bochimoto H, Akaike T, Tachibana T, Minamisawa S. Thiamine treatment preserves cardiac function against ischemia injury via maintaining mitochondrial size and ATP levels. J Appl Physiol (1985) 2020; 130:26-35. [PMID: 33119470 DOI: 10.1152/japplphysiol.00578.2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Thiamine (vitamin B1) is necessary for energy production, especially in the heart. Recent studies have demonstrated that thiamine supplementation for cardiac diseases is beneficial. However, the detailed mechanisms underlying thiamine-preserved cardiac function have not been elucidated. To this end, we conducted a functional analysis, metabolome analysis, and electron microscopic analysis to unveil the mechanisms of preserved cardiac function through supplementation with thiamine for ischemic cardiac disease. Male Sprague-Dawley rats (around 10 wk old) were used. Following pretreatment with or without thiamine pyrophosphate (TPP; 300 µM), hearts were exposed to ischemia (40 min of global ischemia followed by 60 min of reperfusion). We measured the left ventricle developed pressure (LVDP) throughout the protocol. The LVDP during reperfusion in the TPP-treated heart was significantly higher than that in the untreated heart. Metabolome analysis was performed using capillary electrophoresis-time-of-flight mass spectrometry, and it revealed that the TPP-treated heart retained higher adenosine triphosphate (ATP) levels compared with the untreated heart after ischemia. The metabolic pathway showed that there was a significant increase in fumaric acid and malic acid from the tricarboxylic acid cycle following ischemia. Electron microscope analysis revealed that the mitochondria size in the TPP-treated heart was larger than that in the untreated heart. Mitochondrial fission in the TPP-treated heart was also inhibited, which was confirmed by a decrease in the phosphorylation level of DRP1 (fission related protein). TPP treatment for cardiac ischemia preserved ATP levels probably as a result of maintaining larger mitochondria by inhibiting fission, thereby allowing the TPP-treated heart to preserve contractility performance during reperfusion.NEW & NOTEWORTHY We found that treatment with thiamine can have a protective effect on myocardial ischemia. Thiamine likely mediates mitochondrial fission through the inhibition of DRP1 phosphorylation and the preservation of larger-sized mitochondria and ATP concentration, leading to higher cardiac contractility performance during the subsequent reperfusion state.
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Affiliation(s)
- Yuki Yamada
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoichiro Kusakari
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Munetoshi Akaoka
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Masato Watanabe
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Jun Tanihata
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Naritomo Nishioka
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroki Bochimoto
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Toru Akaike
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiaki Tachibana
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, The Jikei University School of Medicine, Tokyo, Japan
| | - Susumu Minamisawa
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
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12
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Wada M, Shimada Y, Iizuka S, Ishii N, Hiraki H, Tachibana T, Maeda K, Saito M, Arakawa S, Ishimoto T, Nakano T, Ida H, Ohashi T, Kobayashi H. Ex Vivo Gene Therapy Treats Bone Complications of Mucopolysaccharidosis Type II Mouse Models through Bone Remodeling Reactivation. Mol Ther Methods Clin Dev 2020; 19:261-274. [PMID: 33102618 PMCID: PMC7567932 DOI: 10.1016/j.omtm.2020.09.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 09/16/2020] [Indexed: 01/22/2023]
Abstract
Mucopolysaccharidosis type II is a disease caused by organ accumulation of glycosaminoglycans due to iduronate 2-sulfatase deficiency. This study investigated the pathophysiology of the bone complications associated with mucopolysaccharidosis II and the effect of lentivirus-mediated gene therapy of hematopoietic stem cells on bone lesions of mucopolysaccharidosis type II mouse models in comparison with enzyme replacement therapy. Bone volume, density, strength, and trabecular number were significantly higher in the untreated mucopolysaccharidosis type II mice than in wild-type mice. Accumulation of glycosaminoglycans caused reduced bone metabolism. Specifically, persistent high serum iduronate 2-sulfatase levels and release of glycosaminoglycans from osteoblasts and osteoclasts in mucopolysaccharidosis type II mice that had undergone gene therapy reactivated bone lineage remodeling, subsequently reducing bone mineral density, strength, and trabecular number to a similar degree as that observed in wild-type mice. Bone formation, resorption parameters, and mineral density in the diaphysis edge did not appear to have been affected by the irradiation administered as a pre-treatment for gene therapy. Hence, the therapeutic effect of gene therapy on the bone complications of mucopolysaccharidosis type II mice possibly outweighed that of enzyme replacement therapy in many aspects.
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Affiliation(s)
- Miho Wada
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Yohta Shimada
- Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Sayoko Iizuka
- Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Natsumi Ishii
- Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiromi Hiraki
- Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiaki Tachibana
- Division of Molecular Cell Biology, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazuhiro Maeda
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Mitsuru Saito
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Shoutaro Arakawa
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Takuya Ishimoto
- Biomaterials & Structural Materials Design Area, Course of Materials Science & Engineering, Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Takayoshi Nakano
- Biomaterials & Structural Materials Design Area, Course of Materials Science & Engineering, Division of Materials & Manufacturing Science, Graduate School of Engineering, Osaka University, Osaka, Japan
| | - Hiroyuki Ida
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Toya Ohashi
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroshi Kobayashi
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo, Japan.,Division of Gene Therapy, Research Center for Medicine Sciences, The Jikei University School of Medicine, Tokyo, Japan
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13
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Fujimoto T, Yamanaka S, Tajiri S, Takamura T, Saito Y, Matsumoto N, Matsumoto K, Tachibana T, Okano HJ, Yokoo T. Generation of Human Renal Vesicles in Mouse Organ Niche Using Nephron Progenitor Cell Replacement System. Cell Rep 2020; 32:108130. [DOI: 10.1016/j.celrep.2020.108130] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/19/2020] [Accepted: 08/20/2020] [Indexed: 12/14/2022] Open
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14
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Fushimi A, Takeyama H, Tachibana T, Manome Y. Osteogenic cocktail induces calcifications in human breast cancer cell line via placental alkaline phosphatase expression. Sci Rep 2020; 10:12669. [PMID: 32728117 PMCID: PMC7391638 DOI: 10.1038/s41598-020-69622-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 06/11/2019] [Accepted: 07/14/2020] [Indexed: 01/27/2023] Open
Abstract
Breast cancer is frequently characterized by calcifications in mammography. The mechanism for calcifications in breast cancer is not completely known. Understanding this mechanism will improve diagnostic accuracy. Herein, we demonstrated that calcifications occur and that alkaline phosphatase enzyme activity increases in MDA-MB-231 cells cultured using an osteogenic cocktail-containing medium. Microarray transcript analysis showed that the PI3K-Akt signaling pathway was significantly involved, with recruitment of placental alkaline phosphatase. Calcifications and alkaline phosphatase enzyme activity were suppressed by silencing placental alkaline phosphatase using a small interfering RNA. Inhibition of the PI3K-Akt signaling pathway suppressed phospho-c-Jun and placental alkaline phosphatase and resulted in absence of calcifications. These findings reveal that breast cancer cells acquire alkaline phosphatase enzyme activity via placental alkaline phosphatase expression and suggest that breast calcification formation is closely associated with the PI3K-Akt signaling pathway.
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Affiliation(s)
- Atsushi Fushimi
- Core Research Facilities, The Jikei University School of Medicine, 3-25-8, Nishi-shimbashi, Minato-ku, Tokyo, Japan. .,Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
| | - Hiroshi Takeyama
- Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiaki Tachibana
- Core Research Facilities, The Jikei University School of Medicine, 3-25-8, Nishi-shimbashi, Minato-ku, Tokyo, Japan
| | - Yoshinobu Manome
- Core Research Facilities, The Jikei University School of Medicine, 3-25-8, Nishi-shimbashi, Minato-ku, Tokyo, Japan
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15
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McConn BR, Tachibana T, Gilbert ER, Cline MA. Prolactin-releasing peptide increases food intake and affects hypothalamic physiology in Japanese quail (Coturnix japonica). Domest Anim Endocrinol 2020; 72:106464. [PMID: 32279041 DOI: 10.1016/j.domaniend.2020.106464] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 01/24/2020] [Accepted: 02/24/2020] [Indexed: 12/14/2022]
Abstract
Prolactin-releasing peptide (PrRP) increases food intake in birds, whereas it is a potent satiety factor in rodents and fish. The aim of this study was to determine the effects of central injection of PrRP on feeding behaviors and hypothalamic physiology in juvenile Japanese quail (Coturnix japonica). Intracerebroventricular injection of 1,692 pmol of PrRP increased food intake for the first 90 min after injection but did not affect water intake. Quail treated with PrRP displayed more food and drink pecks, less time standing but more perching, and decreased defecations. Prolactin-releasing peptide-injected quail had increased c-Fos immunoreactivity in the dorsomedial nucleus (DMN) and arcuate nucleus (ARC) of the hypothalamus. Hypothalamic neuropeptide Y receptor subtypes 2 and 5 and melanocortin receptor 4 mRNAs were greater in PrRP- than vehicle-injected quail. In the DMN, there was less corticotropin-releasing factor (CRF) mRNA and in the ARC, more CRF mRNA in PrRP- than vehicle-injected chicks. Thus, PrRP increases food intake in quail, which is associated with changes in hypothalamic CRF and neuropeptide Y receptor gene expression and c-Fos-immunolabeled cells in the ARC and DMN.
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Affiliation(s)
- B R McConn
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - T Tachibana
- Faculty of Agriculture, Ehime University, Ehime, Japan
| | - E R Gilbert
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - M A Cline
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
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16
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Tachibana T, Nakatani A, Islam Khan MS, Makino R, Cline MA. Behavioral and physiological responses to intraperitoneal injection of zymosan in chicks. Domest Anim Endocrinol 2020; 72:106471. [PMID: 32279040 DOI: 10.1016/j.domaniend.2020.106471] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 02/12/2020] [Accepted: 03/01/2020] [Indexed: 02/07/2023]
Abstract
Zymosan is a cell wall component of the yeast Saccharomyces cerevisiae and produces severe inflammatory responses in mammals. When zymosan is peripherally injected in mammals, it induces several behavioral and physiological changes including anorexia and hyperthermia. However, to our knowledge, behavioral and physiological responses to zymosan have not yet been clarified in birds. Therefore, the purpose of the present study was to determine if intraperitoneal injection of zymosan affects food intake, voluntary activity, cloacal temperature, plasma corticosterone (CORT) and glucose concentrations, and splenic gene expression of cytokines in chicks (Gallus gallus). Intraperitoneal injection of zymosan (2.5 mg) significantly decreased food intake, voluntary activity, and plasma glucose concentration, and increased plasma CORT concentration. The injection of 0.5 mg zymosan significantly increased cloacal temperature, while 2.5 mg zymosan had a tendency to increase it. Finally, 2.5 mg zymosan significantly increased the splenic gene expression of interleukin-1β (IL-1β), IL-6, IL-8, interferon-γ, and tumor necrosis factor-like cytokine 1A. The present results suggest that zymosan would be one of components which induces nonspecific symptoms including anorexia, hypoactivity, hyperthermia, and stress responses, under fungus infection in chicks.
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Affiliation(s)
- T Tachibana
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama 790-8566, Japan.
| | - A Nakatani
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama 790-8566, Japan
| | - M S Islam Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon 791-0295, Ehime, Japan
| | - R Makino
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama 790-8566, Japan
| | - M A Cline
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, 24061 Blacksburg, VA, USA
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17
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Mizobuchi K, Hayashi T, Yoshitake K, Fujinami K, Tachibana T, Tsunoda K, Iwata T, Nakano T. Novel homozygous CLN3 missense variant in isolated retinal dystrophy: A case report and electron microscopic findings. Mol Genet Genomic Med 2020; 8:e1308. [PMID: 32441891 PMCID: PMC7434607 DOI: 10.1002/mgg3.1308] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 12/16/2022] Open
Abstract
Background Biallelic CLN3 gene variants have been found in either juvenile‐onset neuronal ceroid lipofuscinosis (JNCL) or isolated retinal dystrophy. It has been reported that most JNCL patients carry a common 1.02‐kb deletion variant homozygously. Clinical characteristics of patients with biallelic CLN3 missense variants are not well elucidated. Methods We described a 26‐year‐old Japanese male patient with isolated retinal dystrophy. Whole‐exome sequencing (WES) and transmission electron microscopy (TEM) were performed. Results Whole‐exome sequencing identified a novel homozygous CLN3 missense variant [c.482C>T; p.(Ser161Leu)]. Ophthalmoscopy revealed retinal degeneration and macular atrophy, and later attenuated retinal vessels. Severely reduced responses were observed in both rod and cone electroretinograms. In TEM of the patient's lymphocytes, fingerprint profiles, which are specific findings in CLN3‐associated JNCL, were observed in 16/624 (2.56%) lymphocytes of the patient, who has never exhibited neurological signs during the 13‐year follow‐up period. Conclusion Our results indicated that this novel CLN3 missense variant is associated with teenage‐onset isolated retinal dystrophy. This is the first report of any patient with CLN3‐associated disorder in the Japanese population. Although fingerprint profiles have never been reported in CLN3‐associated isolated retinal dystrophy, these profiles were observed, albeit infrequently, suggesting that frequency of the fingerprint profiles might depend on variant types.
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Affiliation(s)
- Kei Mizobuchi
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan
| | - Takaaki Hayashi
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan.,Department of Ophthalmology, Katsushika Medical Center, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazutoshi Yoshitake
- Division of Molecular and Cellular Biology, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Kaoru Fujinami
- Division of Vision Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Toshiaki Tachibana
- Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazushige Tsunoda
- Division of Vision Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Takeshi Iwata
- Division of Molecular and Cellular Biology, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Tadashi Nakano
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan
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18
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Hayashi T, Hosono K, Kubo A, Kurata K, Katagiri S, Mizobuchi K, Kurai M, Mamiya N, Kondo M, Tachibana T, Saitsu H, Ogata T, Nakano T, Hotta Y. Long-term observation of a Japanese mucolipidosis IV patient with a novel homozygous p.F313del variant of MCOLN1. Am J Med Genet A 2020; 182:1500-1505. [PMID: 32220057 DOI: 10.1002/ajmg.a.61575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 01/27/2020] [Revised: 03/05/2020] [Accepted: 03/13/2020] [Indexed: 11/11/2022]
Abstract
Mucolipidosis type IV (MLIV) is an autosomal recessively inherited lysosomal storage disorder characterized by progressive psychomotor delay and retinal degeneration that is associated with biallelic variants in the MCOLN1 gene. The gene, which is expressed in late endosomes and lysosomes of various tissue cells, encodes the transient receptor potential channel mucolipin 1 consisting of six transmembrane domains. Here, we described 14-year follow-up observation of a 4-year-old Japanese male MLIV patient with a novel homozygous in-frame deletion variant p.(F313del), which was identified by whole-exome sequencing analysis. Neurological examination revealed progressive psychomotor delay, and atrophy of the corpus callosum and cerebellum was observed on brain magnetic resonance images. Ophthalmologically, corneal clouding has remained unchanged during the follow-up period, whereas optic nerve pallor and retinal degenerative changes exhibited progressive disease courses. Light-adapted electroretinography was non-recordable. Transmission electron microscopy of granulocytes revealed characteristic concentric multiple lamellar structures and an electron-dense inclusion in lysosomes. The in-frame deletion variant was located within the second transmembrane domain, which is of putative functional importance for channel properties.
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Affiliation(s)
- Takaaki Hayashi
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan.,Department of Ophthalmology, Katsushika Medical Center, The Jikei University School of Medicine, Tokyo, Japan
| | - Katsuhiro Hosono
- Department of Ophthalmology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Akiko Kubo
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan.,Department of Ophthalmology, Kinan Hospital, Mie, Japan
| | - Kentaro Kurata
- Department of Ophthalmology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Satoshi Katagiri
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan
| | - Kei Mizobuchi
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan
| | | | - Norihito Mamiya
- Department of Pediatrics, Kinan Hospital, Mie, Japan.,Department of Pediatrics, Mie University Graduate School of Medicine, Mie, Japan
| | - Mineo Kondo
- Department of Ophthalmology, Mie University Graduate School of Medicine, Mie, Japan
| | - Toshiaki Tachibana
- Core Research Facilities for Basic Science, The Jikei University School of Medicine, Tokyo, Japan
| | - Hirotomo Saitsu
- Department of Biochemistry, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Tsutomu Ogata
- Department of Pediatrics, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Tadashi Nakano
- Department of Ophthalmology, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshihiro Hotta
- Department of Ophthalmology, Hamamatsu University School of Medicine, Shizuoka, Japan
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19
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Affiliation(s)
- T Tachibana
- Faculty of Medicine, Shimane University, 89-1, Enya-cho, Izumo City, Shimane, Japan
| | - T Watari
- Postgraduate Clinical Training Centre, Shimane University Hospital, 89-1, Enya-cho, Izumo City, Shimane 693-8501, Japan
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20
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Tachibana T, Igarashi-Takeuchi H, Numabe Y. PB-14 Effect of smoking inflammatory response to smoking cessation on human gingival fibroblast and periodontal ligaments cells. Microscopy (Oxf) 2019. [DOI: 10.1093/jmicro/dfz081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Toshiaki Tachibana
- Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine
| | - Hiroko Igarashi-Takeuchi
- Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine
- Department of Periodontology, School of life Dentistry at Tokyo, The Nippon Dental University
| | - Yukihiro Numabe
- Department of Periodontology, School of life Dentistry at Tokyo, The Nippon Dental University
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21
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Takeuchi-Igarashi H, Tachibana T, Numabe Y. Evaluation for inflammatory response after smoking cessation on human oral cavity. Tob Induc Dis 2019. [DOI: 10.18332/tid/112513] [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: 11/24/2022] Open
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22
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Yoshikazu Y, Kimura H, Noumi H, Tsuchiya H, Hasegawa T, Yamamoto Y, Yanagisawa T, Ogiwara M, Tachibana T, Horigome M, Nouno Y, Koshikawa M, Kuwahara K. P1809Impact of mitral regurgitation on clinical outcome in patients with cardiac sarcoidosis. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Mitral regurgitation (MR) is sometimes observed in cardiac sarcoidosis (CS), and might be related to worsening heart failure. However, mechanism and clinical significance of MR associated with CS remains undetermined.
Methods
We retrospectively analyzed consecutive 51 CS patients, and identified 16 patients with moderate to severe MR evaluated by quantitative echocardiography. According to the assessment of coaptation point and tenting height, main mechanisms of the 16 patients with MR were classified into prolapse (P) in 5, and tethering in 11 (T). Prednisolone was started from 30 mg/day, gradually tapered over a period of 6 months to a maintenance dose of 5 to 10 mg/day and continued a lifetime.
Results
At the first visit, patients with MR showed higher incidence of NYHA class IV heart failure as compared to those without MR (56 vs. 9%, p<0.001). Abnormal uptake of fluorine-18 fluorodeoxyglucose in the papillary muscle was more frequent in patients with MR than those without MR (63% vs. 23%, p<0.05). Patients with tethering MR showed higher incidence of complete atrioventricular block (T: 74% vs. P: 40% vs. without MR: 31%, p<0.05), significantly reduced left ventricular (LV) ejection fraction (T: 33±7% vs. P: 52±9% vs. without MR: 52±16%, p<0.001) and increased LV end-diastolic volume index (T: 100±52ml/m2 vs. P: 66±23ml vs. without MR: 62±21ml, p<0.001). During the mean follow-up of 108 months, cardiac-event free survival was significantly worse in patients with tethering MR as compared to the other patients (log-rank; 11.7, p<0.001). Six of the 11 patients with tethering MR received cardiac resynchronization therapy, and then did not experience further hospitalization due to decompensated heart failure for at least 2 years. Multivariate analysis identified tethering MR as an independent predictor of cardiac event (HR: 6.7, p<0.05).
Conclusions
MR associated with CS has variety of mechanisms including prolapse, tethering and inflammation of the LV papillary muscle, and may be related to ventricular remodeling and poor clinical outcome.
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Affiliation(s)
- Y Yoshikazu
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - H Kimura
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - H Noumi
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - H Tsuchiya
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - T Hasegawa
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - Y Yamamoto
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - T Yanagisawa
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - M Ogiwara
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - T Tachibana
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - M Horigome
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - Y Nouno
- Saku Central Hospital, Division of Cardiovascular Medicine, Saku, Japan
| | - M Koshikawa
- National Matsumoto Medical Center, Matsumoto, Japan
| | - K Kuwahara
- National Matsumoto Medical Center, Matsumoto, Japan
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Tachibana T, Omori T, Uchida O, Takahashi H, Ikeda N. EP1.09-16 A Case of Pulmonary Primary Enteric Adenocarcinoma Diagnosed Preoperatively. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sakai R, Ohmachi K, Sano F, Watanabe R, Takahashi H, Takasaki H, Tanaka M, Hattori Y, Kimura H, Takimoto M, Tachibana T, Tanaka E, Ishii Y, Ishiyama Y, Hagihara M, Miyazaki K, Yamamoto K, Tomita N, Ando K. Bendamustine-120 plus rituximab therapy for relapsed or refractory follicular lymphoma: a multicenter phase II study. Ann Hematol 2019; 98:2131-2138. [DOI: 10.1007/s00277-019-03750-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 06/27/2019] [Indexed: 11/30/2022]
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25
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Naoi Y, Kariya S, Tachibana T, Nishizaki K. Application of Burow's solution for cement foreign body in the external auditory canal. Eur Ann Otorhinolaryngol Head Neck Dis 2019; 136:397-399. [PMID: 30902554 DOI: 10.1016/j.anorl.2018.01.014] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Only two reports in English literature have described cement foreign bodies in the external auditory canal. CASE SUMMARY We present the case of a 37 year-old man with cement foreign body in the right external auditory canal. Removal of the foreign body was difficult because of severe adhesion to the external auditory canal and tympanic membrane. We therefore used acidic Burow's solution to dissolve the alkaline cement deposition. Application of Burow's solution immediately caused the deposition to take on a paste-like consistency that was easily removed. DISCUSSION Burow's solution seems useful for removing cement foreign bodies in the external auditory canal.
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Affiliation(s)
- Y Naoi
- Department of Otolaryngology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, 670-8540 Hyogo, Himeji, Japan
| | - S Kariya
- Department of Otolaryngology Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-Cho, Kita-Ku, 700-8558 Okayama, Okayama, Japan
| | - T Tachibana
- Department of Otolaryngology, Japanese Red Cross Society Himeji Hospital, 12-1 Shimoteno 1-Chome, 670-8540 Hyogo, Himeji, Japan.
| | - K Nishizaki
- Department of Otolaryngology Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-Cho, Kita-Ku, 700-8558 Okayama, Okayama, Japan
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Arimatsu A, Tomii K, Fujiwara H, Hasegawa G, Shigehara Y, Tachibana T. Photodynamic therapy can prevent recurrence of lymphomatoid papulosis. Photodiagnosis Photodyn Ther 2019; 25:334-335. [DOI: 10.1016/j.pdpdt.2019.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/04/2018] [Accepted: 01/04/2019] [Indexed: 10/27/2022]
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27
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Tachibana T. P1.05-18 Predictive Performance of Semi-Quantitative Metabolic Metrics on FDG-PET/CT for the Identification of EGFR Mutations. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.770] [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: 11/16/2022]
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28
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Takahashi H, Watanabe M, Ohyama A, Toyomura J, Tachibana T, Tanaka A, Ishikawa H. Establishment and characterization of human gingival squamous cell carcinoma cell line NOCS-1. Hum Cell 2018; 32:75-82. [PMID: 30171458 DOI: 10.1007/s13577-018-0216-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/16/2018] [Indexed: 11/29/2022]
Abstract
The NOCS-1 cell line was established from the left gingiva tumor in an 86-year-old Japanese man. Histopathological diagnosis of the original tumor was well-differentiated squamous cell carcinoma. NOCS-1 cells were adhesive epithelial cells with neoplastic or pleomorphic features and grew without contact inhibition. It has been subcultured 70 times during the past 26 months. From passage 3, melanin-containing cells began to be observed in the NOCS-1 cell line. The plating efficiencies were 25% and 23%, doubling times were 29 and 26 h, and saturation densities were 6.9 × 104/cm2 and 8.7 × 104/cm2, at passage 12 and 30, respectively. When NOCS-1 cells were xenotransplanted subcutaneously into SCID mice, they produced tumors that histopathologically resembled the original tumor. In addition, NOCS-1-XG cells derived from the xenotransplanted tumor were similar to NOCS-1 cells. We believe that this cell line may be a valuable tool to develop immunotherapy and chemotherapy regimens.
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Affiliation(s)
- Haruka Takahashi
- Department of Oral and Maxillofacial Surgery, Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan.
| | - Miho Watanabe
- Department of Oral and Maxillofacial Surgery, Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan
| | - Akihiro Ohyama
- Department of NDU Life Sciences, Nippon Dental University School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.,Laboratory of Clinical Regenerative Medicine, Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Junko Toyomura
- Department of NDU Life Sciences, Nippon Dental University School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.,Laboratory of Clinical Regenerative Medicine, Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Toshiaki Tachibana
- Core Research Facilities, The Jikei University School of Medicine, 3-19-18 Nishishinbashi, Minato-ku, Tokyo, 105-8471, Japan
| | - Akira Tanaka
- Department of Oral and Maxillofacial Surgery, Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-8580, Japan
| | - Hiroshi Ishikawa
- Department of NDU Life Sciences, Nippon Dental University School of Life Dentistry at Tokyo, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.,Laboratory of Clinical Regenerative Medicine, Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
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Tachibana T, Kadomoto Y, Khan MSI, Makino R, Cline MA. Effect of l-tryptophan and its metabolites on food passage from the crop in chicks. Domest Anim Endocrinol 2018; 64:59-65. [PMID: 29753195 DOI: 10.1016/j.domaniend.2018.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/09/2018] [Accepted: 03/11/2018] [Indexed: 11/27/2022]
Abstract
l-tryptophan (l-Trp), an essential amino acid, is well known as a precursor of 5-hydroxytryptamine (5-HT) and melatonin. In mammals, l-Trp itself has been reported to suppress gastric emptying in mammals. In addition, 5-HT and melatonin are found in the gastrointestinal tract and affect food passage from the digestive tract in mammals. While the function of these factors in mammals is documented, there is little knowledge on their function in the digestive tract of birds. Therefore, the purpose of the present study was to determine if l-Trp and its metabolites affect the crop emptying rate in chicks (Gallus gallus). We also investigated the effects of kynurenic acid (KYNA) and quinolinic acid (QA), which are metabolites of the kynurenine pathway for l-Trp. Oral administration of l-Trp significantly reduced the crop emptying rate in chicks. Among the metabolites, intraperitoneal injection of 5-HT and melatonin significantly reduced the crop emptying rate, whereas KYNA and QA had no effect. The present study suggests that l-Trp, 5-HT, and melatonin inhibit the movement of food in the digestive tract and thereby affect the utilization of nutrients in the diet of chicks.
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Affiliation(s)
- T Tachibana
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama 790-8566, Japan.
| | - Y Kadomoto
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama 790-8566, Japan
| | - M S I Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon 791-0295, Ehime, Japan
| | - R Makino
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama 790-8566, Japan
| | - M A Cline
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
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30
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Tachibana T, Kodama T, Yamane S, Makino R, Khan SI, Cline MA. Possible role of central interleukins on the anorexigenic effect of lipopolysaccharide in chicks. Br Poult Sci 2017; 58:305-311. [DOI: 10.1080/00071668.2017.1280774] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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)
- T. Tachibana
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - T. Kodama
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - S. Yamane
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - R. Makino
- Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama, Japan
| | - S. I. Khan
- Department of Anatomy and Embryology, Ehime University Graduate School of Medicine, Toon 791-0212, Ehime, Japan
| | - M. A. Cline
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
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31
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Hirabayashi T, Takahashi H, Watanabe M, Tachibana T. Establishment and characterization of a squamous cell carcinoma cell line, designated hZK-1, derived from a metastatic lymph node tumor of the tongue. Hum Cell 2017; 30:319-326. [PMID: 28260147 DOI: 10.1007/s13577-017-0165-y] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 02/17/2017] [Indexed: 12/18/2022]
Abstract
The hZK-1 cell line was successfully established from the metastatic foci of a lymph node of an 82-year-old Japanese woman with squamous cell carcinoma of the tongue. The pathological diagnosis of the tumor was moderately to well-differentiated squamous cell carcinoma. The hZK-1 cells were angular in shape, and had neoplastic and pleomorphic features. Adjacent hZK-1 cells were joined by desmosomes and well-developed microvilli, and many free ribosomes were observed in the cytoplasm. The doubling time of the hZK-1 cells was approximately 36, 33, and 29 h at the 10th, 20th, and 30th passages, respectively. The cell line was shown to be triploid, with a chromosomal distribution of 75-80. Immunocytochemical staining of the hZK-1 cells revealed cytokeratin (CK) 17-, Ki67-, and p53-positive staining, and negative staining for CK13. The hZK-1 cells were negative for human papillomavirus (HPV)-16 or-18 infection. Grafting was not successful when the hZK-1 cells were transplanted into the subcutis of SCID mice. The hZK-1 cells (2 × 106 cells/3 ml of growth medium) secreted vascular endothelial growth factor (VEGF) that reached a concentration of 2.6 ng/ml media after 3 days of culture. Hypoxia enhanced cellular HIF-1α expression and VEGF secretion in hZK-1 cells. The HIF-1α inhibitor YC-1 partially inhibited hypoxia-induced VEGF secretion in ZK-1 cells. The reverse transcription-polymerase chain reaction (RT-PCR) results revealed that the expression of CK17, Ki67, and p53 was elevated in the hZK-1 cells. hZK-1 cells were not sensitive to CDDP, TXT, 5-FU, or a mixture of these three anti-tumor agents.
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Affiliation(s)
- Tetsuya Hirabayashi
- Department of Anatomy, The Jikei University School of Medicine, 3-25-8 Nishishinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Haruka Takahashi
- Department of Oral and Maxillofacial Surgery, Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-1500, Japan.,Department of NDU Life Sciences, School of Life Dentistry, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Miho Watanabe
- Department of Oral and Maxillofacial Surgery, Nippon Dental University School of Life Dentistry at Niigata, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-1500, Japan.,Department of NDU Life Sciences, School of Life Dentistry, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Toshiaki Tachibana
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, The Jikei University School of Medicine, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan.
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32
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Takanashi T, Golubev NV, Callegari C, Fukuzawa H, Motomura K, Iablonskyi D, Kumagai Y, Mondal S, Tachibana T, Nagaya K, Nishiyama T, Matsunami K, Johnsson P, Piseri P, Sansone G, Dubrouil A, Reduzzi M, Carpeggiani P, Vozzi C, Devetta M, Negro M, Faccialà D, Calegari F, Trabattoni A, Castrovilli MC, Ovcharenko Y, Mudrich M, Stienkemeier F, Coreno M, Alagia M, Schütte B, Berrah N, Plekan O, Finetti P, Spezzani C, Ferrari E, Allaria E, Penco G, Serpico C, De Ninno G, Diviacco B, Di Mitri S, Giannessi L, Jabbari G, Prince KC, Cederbaum LS, Demekhin PV, Kuleff AI, Ueda K. Time-Resolved Measurement of Interatomic Coulombic Decay Induced by Two-Photon Double Excitation of Ne_{2}. Phys Rev Lett 2017; 118:033202. [PMID: 28157370 DOI: 10.1103/physrevlett.118.033202] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Indexed: 06/06/2023]
Abstract
The hitherto unexplored two-photon doubly excited states [Ne^{*}(2p^{-1}3s)]_{2} were experimentally identified using the seeded, fully coherent, intense extreme ultraviolet free-electron laser FERMI. These states undergo ultrafast interatomic Coulombic decay (ICD), which predominantly produces singly ionized dimers. In order to obtain the rate of ICD, the resulting yield of Ne_{2}^{+} ions was recorded as a function of delay between the extreme ultraviolet pump and UV probe laser pulses. The extracted lifetimes of the long-lived doubly excited states, 390(-130/+450) fs, and of the short-lived ones, less than 150 fs, are in good agreement with ab initio quantum mechanical calculations.
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Affiliation(s)
- T Takanashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - N V Golubev
- Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - C Callegari
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - H Fukuzawa
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Motomura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - D Iablonskyi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - Y Kumagai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - S Mondal
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Tachibana
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Nagaya
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - T Nishiyama
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - K Matsunami
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - P Johnsson
- Department of Physics, Lund University, P.O. Box 118, 22100 Lund, Sweden
| | - P Piseri
- CIMAINA and Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy
| | - G Sansone
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Physikalisches Institut Albert-Ludwigs-Universität, Stefan-Meier-Strasse 19 79104 Freiburg, Germany
| | - A Dubrouil
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - M Reduzzi
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - P Carpeggiani
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - C Vozzi
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - M Devetta
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - M Negro
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - D Faccialà
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - F Calegari
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Center for Free-Electron Laser Science, DESY, Notkestr. 85, 22607 Hamburg, Germany
| | - A Trabattoni
- CNR-IFN, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
- Center for Free-Electron Laser Science, DESY, Notkestr. 85, 22607 Hamburg, Germany
| | | | - Y Ovcharenko
- Institut für Optik und Atomare Physik, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
| | - M Mudrich
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | - F Stienkemeier
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | - M Coreno
- CNR-ISM, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - M Alagia
- CNR-IOM, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - B Schütte
- Max-Born-Institut, Max-Born-Strasse 2 A, 12489 Berlin, Germany
| | - N Berrah
- Department of Physics, University of Connecticut, 2152 Hillside Road, Storrs, Connecticut 06269, USA
| | - O Plekan
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - P Finetti
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - C Spezzani
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - E Ferrari
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - E Allaria
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - G Penco
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - C Serpico
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - G De Ninno
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
- Laboratory of Quantum Optics, University of Nova Gorica, 5001 Nova Gorica, Slovenia
| | - B Diviacco
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - S Di Mitri
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - L Giannessi
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - G Jabbari
- Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - K C Prince
- Elettra-Sincrotrone Trieste, Strada Statale 14 - km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
- CNR-IOM, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - L S Cederbaum
- Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - Ph V Demekhin
- Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - A I Kuleff
- Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - K Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
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Iablonskyi D, Nagaya K, Fukuzawa H, Motomura K, Kumagai Y, Mondal S, Tachibana T, Takanashi T, Nishiyama T, Matsunami K, Johnsson P, Piseri P, Sansone G, Dubrouil A, Reduzzi M, Carpeggiani P, Vozzi C, Devetta M, Negro M, Calegari F, Trabattoni A, Castrovilli MC, Faccialà D, Ovcharenko Y, Möller T, Mudrich M, Stienkemeier F, Coreno M, Alagia M, Schütte B, Berrah N, Kuleff AI, Jabbari G, Callegari C, Plekan O, Finetti P, Spezzani C, Ferrari E, Allaria E, Penco G, Serpico C, De Ninno G, Nikolov I, Diviacco B, Di Mitri S, Giannessi L, Prince KC, Ueda K. Slow Interatomic Coulombic Decay of Multiply Excited Neon Clusters. Phys Rev Lett 2016; 117:276806. [PMID: 28084773 DOI: 10.1103/physrevlett.117.276806] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Indexed: 06/06/2023]
Abstract
Ne clusters (∼5000 atoms) were resonantly excited (2p→3s) by intense free electron laser (FEL) radiation at FERMI. Such multiply excited clusters can decay nonradiatively via energy exchange between at least two neighboring excited atoms. Benefiting from the precise tunability and narrow bandwidth of seeded FEL radiation, specific sites of the Ne clusters were probed. We found that the relaxation of cluster surface atoms proceeds via a sequence of interatomic or intermolecular Coulombic decay (ICD) processes while ICD of bulk atoms is additionally affected by the surrounding excited medium via inelastic electron scattering. For both cases, cluster excitations relax to atomic states prior to ICD, showing that this kind of ICD is rather slow (picosecond range). Controlling the average number of excitations per cluster via the FEL intensity allows a coarse tuning of the ICD rate.
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Affiliation(s)
- D Iablonskyi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Nagaya
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - H Fukuzawa
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Motomura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - Y Kumagai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - S Mondal
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Tachibana
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Takanashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Nishiyama
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - K Matsunami
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - P Johnsson
- Department of Physics, Lund University, 22100 Lund, Sweden
| | - P Piseri
- Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milano, Italy
| | - G Sansone
- CNR-IFN, 20133 Milan, Italy
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | | | | | | | | | | | | | - F Calegari
- CNR-IFN, 20133 Milan, Italy
- Center for Free-Electron Laser Science, DESY, 22607 Hamburg, Germany
| | - A Trabattoni
- CNR-IFN, 20133 Milan, Italy
- Center for Free-Electron Laser Science, DESY, 22607 Hamburg, Germany
| | | | - D Faccialà
- Dipartimento di Fisica, Politecnico di Milano, 20133 Milan, Italy
| | - Y Ovcharenko
- Institut für Optik und Atomare Physik, TU Berlin, 10623 Berlin, Germany
| | - T Möller
- Institut für Optik und Atomare Physik, TU Berlin, 10623 Berlin, Germany
| | - M Mudrich
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | - F Stienkemeier
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | - M Coreno
- CNR-ISM, Area Science Park, 34149 Trieste, Italy
| | - M Alagia
- CNR-IOM, Area Science Park, 34149 Trieste, Italy
| | - B Schütte
- Max-Born-Institut, 12489 Berlin, Germany
| | - N Berrah
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - A I Kuleff
- Theoretische Chemie, Universität Heidelberg, 69120 Heidelberg, Germany
| | - G Jabbari
- Theoretische Chemie, Universität Heidelberg, 69120 Heidelberg, Germany
| | - C Callegari
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - O Plekan
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - P Finetti
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - C Spezzani
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - E Ferrari
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - E Allaria
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - G Penco
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - C Serpico
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - G De Ninno
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
- Laboratory of Quantum Optics, University of Nova Gorica, 5001 Nova Gorica, Slovenia
| | - I Nikolov
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - B Diviacco
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - S Di Mitri
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - L Giannessi
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - K C Prince
- CNR-IOM, Area Science Park, 34149 Trieste, Italy
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - K Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
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Abstract
375 parents of pupils were asked to respond to 14 questions on attitudes toward persons with intellectual disability. About 30% of variance in attitude was explained by a set of variables. The effects of schemata concerning person with intellectual disability had a great effect on attitudes toward such persons. The guess of a greater contribution of heredity as the basis of intellectual disability and of fewer such persons in the future of their own families than in the general population was associated with greater negative attitudes toward persons with intellectual disability. As these estimations relate to teachable information, the attitudes might be improved.
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Affiliation(s)
- Toshiaki Tachibana
- Institute for Developmental Research, Aichi Human Service Center, Kasugai, Japan
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35
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Nagaya K, Iablonskyi D, Golubev NV, Matsunami K, Fukuzawa H, Motomura K, Nishiyama T, Sakai T, Tachibana T, Mondal S, Wada S, Prince KC, Callegari C, Miron C, Saito N, Yabashi M, Demekhin PV, Cederbaum LS, Kuleff AI, Yao M, Ueda K. Interatomic Coulombic decay cascades in multiply excited neon clusters. Nat Commun 2016; 7:13477. [PMID: 27917867 PMCID: PMC5150215 DOI: 10.1038/ncomms13477] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 02/17/2016] [Accepted: 10/07/2016] [Indexed: 11/21/2022] Open
Abstract
In high-intensity laser light, matter can be ionized by direct multiphoton absorption even at photon energies below the ionization threshold. However on tuning the laser to the lowest resonant transition, the system becomes multiply excited, and more efficient, indirect ionization pathways become operative. These mechanisms are known as interatomic Coulombic decay (ICD), where one of the species de-excites to its ground state, transferring its energy to ionize another excited species. Here we show that on tuning to a higher resonant transition, a previously unknown type of interatomic Coulombic decay, intra-Rydberg ICD occurs. In it, de-excitation of an atom to a close-lying Rydberg state leads to electron emission from another neighbouring Rydberg atom. Moreover, systems multiply excited to higher Rydberg states will decay by a cascade of such processes, producing even more ions. The intra-Rydberg ICD and cascades are expected to be ubiquitous in weakly-bound systems exposed to high-intensity resonant radiation. Interatomic Coulombic decay (ICD) is a relaxation of an atom in a weakly bound environment by the transfer of excess energy to ionize the neighbouring atom. Here the authors observe intra-Rydberg ICD in neon clusters, which is a decay that involves the ionization of Rydberg atoms in the cluster.
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Affiliation(s)
- K Nagaya
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan.,RIKEN SPring-8 Center, 679-5148 Hyogo, Japan
| | - D Iablonskyi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - N V Golubev
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
| | - K Matsunami
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - H Fukuzawa
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Motomura
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Nishiyama
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - T Sakai
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - T Tachibana
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - S Mondal
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - S Wada
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Department of Physical Science, Hiroshima University, 739-8526 Higashi-Hiroshima, Japan
| | - K C Prince
- Elettra-Sincrotrone Trieste, Basovizza, Trieste I-34149, Italy
| | - C Callegari
- Elettra-Sincrotrone Trieste, Basovizza, Trieste I-34149, Italy
| | - C Miron
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, FR-91192 Gif-sur-Yvette Cedex, France.,Extreme Light Infrastructure-Nuclear Physics (ELI-NP), 'Horia Hulubei' National Institute for Physics and Nuclear Engineering, RO-077125 Măgurele, Jud. Ilfov, Romania
| | - N Saito
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,National Metrology Institute of Japan, AIST, 305-8568 Tsukuba, Japan
| | - M Yabashi
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan
| | - Ph V Demekhin
- Theoretische Atom- und Molekülphysik, Institut für Physik und CINSaT, Universität Kassel, D-34132 Kassel, Germany
| | - L S Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
| | - A I Kuleff
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
| | - M Yao
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan.,Deceased
| | - K Ueda
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
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36
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Tachibana T, Ogino M, Makino R, Khan MSI, Cline MA. Lipopolysaccharide reduces food passage rate from the crop by a prostaglandin-independent mechanism in chickens. Br Poult Sci 2016; 58:100-106. [PMID: 27871194 PMCID: PMC5359745 DOI: 10.1080/00071668.2016.1237768] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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] [Indexed: 12/04/2022]
Abstract
1. We examined the effect of lipopolysaccharide (LPS), a component of Gram-negative bacteria, on food passage in the digestive tract of chickens (Gallus gallus) in order to clarify whether bacterial infection affects food passage in birds. 2. Food passage in the crop was significantly reduced by intraperitoneal (IP) injection of LPS while it did not affect the number of defecations, suggesting that LPS may affect food passage only in the upper digestive tract. 3. Similar to LPS, prostaglandin E2 (PGE2), one of the mediators of LPS, also reduced crop-emptying rate in chickens while it had no effect on the number of defecations. 4. Pretreatment with indomethacin, which is an inhibitor of cyclooxygenase (COX), a prostaglandin synthase, had no effect on LPS-induced inhibition of crop emptying. 5. IP injection of LPS did not affect the mRNA expression of COX2 in the upper digestive tract of chickens. 6. It is therefore likely that LPS and PGE2 reduced food passage rate in the crop by a prostaglandin-independent pathway in chickens.
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Affiliation(s)
- T Tachibana
- a Department of Agrobiological Science, Faculty of Agriculture , Ehime University , Matsuyama , Japan
| | - M Ogino
- a Department of Agrobiological Science, Faculty of Agriculture , Ehime University , Matsuyama , Japan
| | - R Makino
- a Department of Agrobiological Science, Faculty of Agriculture , Ehime University , Matsuyama , Japan
| | - M S I Khan
- b Department of Anatomy and Embryology , Ehime University Graduate School of Medicine , Toon , Japan
| | - M A Cline
- c Department of Animal and Poultry Sciences , Virginia Polytechnic Institute and State University , Blacksburg , VA , USA
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37
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Iida S, Wada K, Mochizuki I, Tachibana T, Yamashita T, Hyodo T, Nagashima Y. Emission of low-energy positronium from alkali-metal coated single-crystal tungsten surfaces. J Phys Condens Matter 2016; 28:475002. [PMID: 27662111 DOI: 10.1088/0953-8984/28/47/475002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We have measured the time-of-flight of ortho-positronium emitted from Cs-, Na- and Li-coated single-crystal tungsten surfaces. The data obtained after the coating show a new positronium energy component with a specific energy loss in addition to the component whose emission energy is simply determined by the positron and the electron work functions. We suggest that this new component is attributed to the formation of positronium accompanied by inter-band transition and/or surface plasmon excitation at the surfaces.
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Affiliation(s)
- S Iida
- Department of Physics, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo, 162-8601, Japan
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38
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Abstract
A number of reports in the literature have ignored the Type II error and thus erred in the interpretation of negative data. Erroneous interpretation of results, especially in comparing the results of one study with those of another, was demonstrated.
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39
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Abstract
96 male rats were tested in open field in dim-light condition or bright-light condition for 3 min. per day for 5 days. The validity of 7 open-field test measures was assessed on the basis of the concept which was defined operationally using the test situation as the external criterion. Ambulation in the first 1 min. and rearing showed not only validity but also some generality. An interactive measure (ambulation in the first 1 min. and defecation) was proposed as a new significant measure. Larger intercorrelations among measures were obtained in a less stressful situation. In view of the results, an interpretation of previous conflicting results was proposed. Considerable constant factor-loading pattern across days and groups was noted, and this suggested the validity of the factor structure of an open-field test measure. Scores obtained on Day 1 showed some heterogeneity among scores obtained during 5 days.
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40
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Abstract
There is a fundamental difficulty with a significance test in studies in which subjects are nonrandomly assigned, e.g., differences in strain, sex, age groups, and species, etc. The implausibility of the assumption of random sampling and the use of the significance test in such studies is pointed out. Inference without reliance on the significance test is needed not only in studies of subjects nonrandomly assigned but also in those in which assignment of subjects is random. It is emphasized that inference without the significance test remains a standard scientific approach, in spite of the widespread use of many statistical tests. A call is made for more discussion of the problem.
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41
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Tachibana T. Reproducibility across Experiments of Behavioral Results Obtained under Strictly Standardized Conditions: Another View of the Results of the Collaborative Behavioral Teratology Study. Psychol Rep 2016. [DOI: 10.2466/pr0.1989.64.2.559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The data of the Collaborative Behavioral Teratology Study were reanalyzed. The degree of reproducibility of the treatment effect across experiments was assessed as the magnitude of fluctuation in strength of association (η2) for the replication experiment. There was no evidence that fluctuation of treatment effects across experiments was greater for behavioral measures than for nonbehavioral ones, suggesting the conventional belief that low reproducibility of results in behavioral teratology reflects the low reliability of the behavior test per se is unwarranted. Although the distributions of obtained treatment effects were almost symmetric and unimodal for most measures, the ranges were considerable. Considering that experiments were conducted under strictly standardized conditions across experiments, finding of the considerable ranges indicates that inconsistency in results across experiments cannot be remedied adequately by employing solely a standardized method. Basing in the main their results in terms of conventional significance tests, research workers in the collaborative study concluded that excellent reproducibility of behavioral data was demonstrated. The logic underlying the statistically nonsignificant interaction used in the original work was examined critically. A serious limitation upon the significance test for assessing the reproducibility of results was pointed out, and a warning issued about customary reliance only on a significance test.
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42
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Abstract
Vorhees (1989) argued critically that my reanalysis of the Collaborative Behavioral Teratology Study data was performed on the basis of improper unit of analyses. It was shown that his criticism is unwarranted. The erroneous logic underlying the collaborative study's conclusion that excellent reproducibility of data was obtained was confirmed.
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Ohyama A, Toyomura J, Tachibana T, Isonishi S, Takahashi H, Ishikawa H. Establishment and characterization of a clear cell carcinoma cell line, designated NOCC, derived from human ovary. Hum Cell 2016; 29:188-96. [PMID: 27541369 DOI: 10.1007/s13577-016-0142-x] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 07/26/2016] [Indexed: 11/25/2022]
Abstract
A cell line, designated NOCC, was established from the ascites of a patient with clear cell adenocarcinoma of the ovary. The cell line has been grown without interruption and continuously propagated by serial passaging (more than 76 times) over 7 years. The cells are spherical to polygonal-shaped, display neoplastic, and pleomorphic features, and grow in a jigsaw puzzle-like pattern while forming monolayers without contact inhibition. The cells proliferate rapidly, but are easily floated as a cell sheet. The population doubling time is about 29 h. The number of chromosomes ranges from 60 to 83. The modal number of chromosomes is 70-74 at the 30th passage. NOCC cells secreted 750.5 ng/ml of VEGF over 3 days of culture. Hypoxia inducible factor-1α (HIF-1α) is a primary regulator of VEGF under hypoxic conditions. NOCC cells were not sensitive to the anticancer drugs BEV, DOX, GEM, ETP, CDDP, or TXT. The graft of NOCC cells to a scid mouse displayed similar histological aspects to the original tumor. Both the NOCC cells and the graft of the NOCC cells gave a positive PAS reaction.
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Affiliation(s)
- Akihiro Ohyama
- Department of NDU Life Sciences, School of Life Dentistry, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Junko Toyomura
- Department of NDU Life Sciences, School of Life Dentistry, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Toshiaki Tachibana
- Division of Fine Morphology, Core Research Facilities, The Jikei University School of Medicine, 3-25-8 Nishi-Shinbashi, Minato-ku, Tokyo, 105-0082, Japan
| | - Seiji Isonishi
- Department of Obstetrics and Gynecology, Jikei Daisan Hospital, 4-11-1 Izumihoncho, Komae-shi, Tokyo, 201-8601, Japan
| | - Haruka Takahashi
- Department of NDU Life Sciences, School of Life Dentistry, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
- Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Niigata, The Nippon Dental University, 1-8 Hamaura-cho, Chuo-ku, Niigata, 951-1500, Japan
| | - Hiroshi Ishikawa
- Department of NDU Life Sciences, School of Life Dentistry, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
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44
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Shigetani Y, Wakamatsu Y, Tachibana T, Okabe M. Conversion of neural plate explants to pre-placodal ectoderm-like tissue in vitro. Biochem Biophys Res Commun 2016; 477:807-813. [PMID: 27369078 DOI: 10.1016/j.bbrc.2016.06.139] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 06/27/2016] [Indexed: 10/21/2022]
Abstract
Neural crest and cranial sensory placodes arise from ectodermal epithelium lying between the neural plate and non-neural ectoderm (neural border). BMP signaling is important for both an induction of the neural border and a subsequent induction of the neural crest within the neural border. In contrast, FGF signaling is important for the neural border induction and the following induction of the pre-placodal ectoderm (PPE), which later gives rise to the cranial sensory placodes. While previous studies have demonstrated that the neural plate explants could be converted to the neural crest cells by adding BMP4 in a culture medium, there is no report showing a similar conversion of the neural plate to the PPE. We therefore examined the effect of FGF2 along with BMP4 on the rostral neural plate explants and found that the explants became the simple squamous epithelia, which were characterized by the desmosomes/tonofilaments in membranes of adjacent cells. Such epithelia expressed sets of neural border markers and the PPE genes, suggesting that the neural plate explants were converted to a PPE-like tissue. This method will be useful for further studying mechanisms of PPE induction and subsequent specifications of the cranial placodes.
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Affiliation(s)
- Yasuyo Shigetani
- Department of Anatomy, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo 105-0003, Japan.
| | - Yoshio Wakamatsu
- Department of Developmental Neuroscience, United Centers for Advance Research and Translational Medicine, Tohoku University School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Toshiaki Tachibana
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Research Center for Medical Science, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo 105-0003, Japan
| | - Masataka Okabe
- Department of Anatomy, The Jikei University School of Medicine, 3-25-8 Nishi-shinbashi, Minato-ku, Tokyo 105-0003, Japan
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45
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Ikeda K, Tachibana T, Suzuki Y, Fujioka K, Takeyama H, Manome Y. Abnormal number cell division of human thyroid anaplastic carcinoma cell line, SW 1736. Data Brief 2016; 5:396-8. [PMID: 26958598 PMCID: PMC4773363 DOI: 10.1016/j.dib.2015.09.030] [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: 08/03/2015] [Revised: 09/14/2015] [Accepted: 09/22/2015] [Indexed: 11/02/2022] Open
Abstract
Cell division, during which a mother cell usually divides into two daughter cells during one cell cycle, is the most important physiological event of cell biology. We observed one-to-four cell division during imaging of live SW1736 human thyroid anaplastic carcinoma cells transfected with a plasmid expressing the hybrid protein of green fluorescent protein and histone 2B (plasmid eGFP-H2B). Analysis of the images revealed a mother cell divided into four daughter cells. And one of the abnormally divided daughter cells subsequently formed a dinucleate cell.
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Affiliation(s)
- Keiichi Ikeda
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiaki Tachibana
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Yuta Suzuki
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Kouki Fujioka
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroshi Takeyama
- Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Yoshinobu Manome
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Research Center for Medical Sciences, The Jikei University School of Medicine, Tokyo, Japan
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46
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Yoshida T, Tachibana T, Chiba S. Analysis of Electron and Antineutrino Energy Spectra from Fissile Samples under Irradiation based on Gross Theory of Beta-decay. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201612210002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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47
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Nagaya K, Motomura K, Kukk E, Takahashi Y, Yamazaki K, Ohmura S, Fukuzawa H, Wada S, Mondal S, Tachibana T, Ito Y, Koga R, Sakai T, Matsunami K, Nakamura K, Kanno M, Rudenko A, Nicolas C, Liu XJ, Miron C, Zhang Y, Jiang Y, Chen J, Anand M, Kim DE, Tono K, Yabashi M, Yao M, Kono H, Ueda K. Femtosecond charge and molecular dynamics of I-containing organic molecules induced by intense X-ray free-electron laser pulses. Faraday Discuss 2016; 194:537-562. [DOI: 10.1039/c6fd00085a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We studied the electronic and nuclear dynamics of I-containing organic molecules induced by intense hard X-ray pulses at the XFEL facility SACLA in Japan. The interaction with the intense XFEL pulse causes absorption of multiple X-ray photons by the iodine atom, which results in the creation of many electronic vacancies (positive charges) via the sequential electronic relaxation in the iodine, followed by intramolecular charge redistribution. In a previous study we investigated the subsequent fragmentation by Coulomb explosion of the simplest I-substituted hydrocarbon, iodomethane (CH3I). We carried out three-dimensional momentum correlation measurements of the atomic ions created via Coulomb explosion of the molecule and found that a classical Coulomb explosion model including charge evolution (CCE-CE model), which accounts for the concerted dynamics of nuclear motion and charge creation/charge redistribution, reproduces well the observed momentum correlation maps of fragment ions emitted after XFEL irradiation. Then we extended the study to 5-iodouracil (C4H3IN2O2, 5-IU), which is a more complex molecule of biological relevance, and confirmed that, in both CH3I and 5-IU, the charge build-up takes about 10 fs, while the charge is redistributed among atoms within only a few fs. We also adopted a self-consistent charge density-functional based tight-binding (SCC-DFTB) method to treat the fragmentations of highly charged 5-IU ions created by XFEL pulses. Our SCC-DFTB modeling reproduces well the experimental and CCE-CE results. We have also investigated the influence of the nuclear dynamics on the charge redistribution (charge transfer) using nonadiabatic quantum-mechanical molecular dynamics (NAQMD) simulation. The time scale of the charge transfer from the iodine atomic site to the uracil ring induced by nuclear motion turned out to be only ∼5 fs, indicating that, besides the molecular Auger decay in which molecular orbitals delocalized over the iodine site and the uracil ring are involved, the nuclear dynamics also play a role for ultrafast charge redistribution. The present study illustrates that the CCE-CE model as well as the SCC-DFTB method can be used for reconstructing the positions of atoms in motion, in combination with the momentum correlation measurement of the atomic ions created via XFEL-induced Coulomb explosion of molecules.
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48
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Nakahara T, Tominaga N, Toyomura J, Tachibana T, Ide Y, Ishikawa H. Isolation and characterization of embryonic ameloblast lineage cells derived from tooth buds of fetal miniature swine. In Vitro Cell Dev Biol Anim 2015; 52:445-53. [PMID: 26698579 DOI: 10.1007/s11626-015-9987-7] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 11/29/2015] [Indexed: 12/18/2022]
Abstract
Dental enamel formation, known as "amelogenesis," is initiated by cytodifferentiation of the ectodermally derived dental epithelium. Enamel cannot regenerate itself because once it is completely formed, ameloblasts are lost as the tooth erupts. Rodent teeth have been useful for studying the mechanisms of amelogenesis because ameloblast cell lines can be derived from the ever-growing incisors. However, higher mammals such as humans have no growing teeth, and cell lines derived from larger animals that are more similar to humans are required for higher fidelity studies. Here, we isolated embryonic enamel epithelium-derived epithelial cells from fetal swine. The explant culture of the developing deciduous molars that had been removed from the dental papilla-derived mesenchymal tissue and cells inside the tooth buds provided the epithelial cell population for the primary culture. To isolate the cell population, we performed a unique cell isolation technique called cell fishing. The isolated cells showed clear embryonic-stage ameloblast characteristics with appropriate gene/protein expressions of enamel matrix and proteinases, abundant glycogen pools, and secretory granular materials. They could be continuously subcultured several times and are presently being maintained. This cell population will facilitate the establishment of a stable cell line and allow us to characterize the definitive phenotype and functional behavior of porcine ameloblasts, which, in turn, promises to yield useful and practical findings that are more relevant than those provided by rodent studies. Finally, analysis of in vitro enamel formation will be important for engineering "bio-enamel" as a new dental therapy to restore enamel defects.
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Affiliation(s)
- Taka Nakahara
- Department of Developmental and Regenerative Dentistry, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan.
| | - Noriko Tominaga
- Department of Developmental and Regenerative Dentistry, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Junko Toyomura
- Department of NDU Life Sciences, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20, Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Toshiaki Tachibana
- Division of Fine Morphology, Core Research Facilities, The Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo, 105-0082, Japan
| | - Yoshiaki Ide
- Department of Developmental and Regenerative Dentistry, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
| | - Hiroshi Ishikawa
- Department of NDU Life Sciences, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20, Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan
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Tachibana T, Suzuki Y, Fujioka K, Ikeda K, Inoue Y, Tada Y, Saito TK, Manome Y. Cell Membrane Perforation with Photosensitizer and a Brush-shaped Soft-polymer Sheet Using a Malignant Glioma Cell Line. Anticancer Res 2015; 35:6069-6074. [PMID: 26504031] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Transduction of foreign molecules into cells is an important technique to investigate the functions of corresponding molecules and/or targets. Recently, a mass-producible nanoprinting perforator was devised enabling for large-scale, high-performance drug or nucleic-acid transfer into cells without cell damage. Since little is known on the performance of the system, we investigated its effects on a malignant glioma cell line. MATERIALS AND METHODS Photosensitization was performed by the Cell Stamper CP-01. The malignant U373MG glioma cell line was used for transduction. RESULTS Photosensitization transduced FITC-conjugated albumin into cells. Trypan blue inclusion test demonstrated membrane disintegration by the procedure and scanning electron microscopy disclosed perforation of the cell membrane. CONCLUSION Local oxidation reaction during the nanoprinting caused reversible membrane perforation. Morphological findings from the current study support the above mechanism, therefore the specific printing system might be convenient for transduction of foreign molecules into malignant glioma cells.
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Affiliation(s)
- Toshiaki Tachibana
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Jikei University School of Medicine, Tokyo, Japan
| | - Yuta Suzuki
- Department of Neurosurgery, Jikei University School of Medicine, Tokyo, Japan
| | - Kouki Fujioka
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Jikei University School of Medicine, Tokyo, Japan
| | - Keiichi Ikeda
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Jikei University School of Medicine, Tokyo, Japan
| | - Yuriko Inoue
- Department of Anatomy, Showa University School of Medicine, Tokyo, Japan
| | - Yoshifumi Tada
- Research Institute of Bio System Information, Tohoku Chemical Co., Ltd., Iwate, Japan
| | - Takashi Kei Saito
- Department of Machine Intelligence and Systems Engineering, Akita Prefectural University, Yurihonjo City, Akita, Japan
| | - Yoshinobu Manome
- Division of Molecular Cell Biology, Core Research Facilities for Basic Science, Jikei University School of Medicine, Tokyo, Japan
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Ohyama A, Nikaido T, Tachibana T, Tominaga N, Toyomura J, Kimura E, Nakahara T, Yasuda M, Ishikawa H. Establishment and characterization of a cell line designated Nur-1 derived from human endometrioid adenocarcinoma of uterine corps. Hum Cell 2015; 28:100-7. [PMID: 25627346 DOI: 10.1007/s13577-014-0108-9] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 12/15/2014] [Indexed: 11/27/2022]
Abstract
A new cell line designated Nur-1 has been established from human endometrioid adenocarcinoma, Grade 1, pT1a, PN1 (3/24), Stage IIIc (International Federation of Gynecology and Obstetrics/Union for International Cancer Control (FIGO/UICC TNM Classification of Malignant Tumours, 7th ed.). Cytological findings of Nur-1 cells reveal anaplastic and pleomorphic features such as anisonucleosis, nucleolar pleomorphism, and piling-up tendency in cellular arrangement. Distribution of the chromosome number is found at the hyperploid range, and the apparent marker chromosome has not been identified. The original tumor and graft of the Nur-1 cell line had a large amount of estrogen receptors and progesterone receptors, as revealed by immunohistochemistry. The cytokeratin pattern of the tumor was positive for cytokeratin-7 and negative for cytokeratin-20. However, a few cells were positive for cytokeratin-20 in the original tumor. Nur-1 cells express mRNA of estrogen receptors and progesterone receptors, cytokeratin-7, and cytokeratin-20 at 105 passages. These findings are consistent with the cytokeratin pattern of endometrial glandular cells. The cells make contact with each other via interdigitation and desmosomes. They possess bundles of microtubules and tonofilaments and many free ribosomes. Some cells have various sizes of phagosomes. The Nur-1 cell line exceeded 102 passages in 5 years, and multiplication of the cells is stable. The modal number of the Nur-1 cell line is 91-92 (56 %). The Nur-1 cells develop well-differentiated adenocarcinoma in tumors sustained in nude mice that resemble the original tumors.
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Affiliation(s)
- Akihiro Ohyama
- Department of NDU Life Sciences, School of Life Dentistry, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan,
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