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Ohnuma S, Tanaka J, Yukimori A, Ishida S, Yasuhara R, Mishima K. Single-cell analysis reveals the transcriptional alterations in the submandibular glands of aged mice. J Oral Biosci 2024; 66:82-89. [PMID: 38142941 DOI: 10.1016/j.job.2023.12.002] [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: 12/07/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/26/2023]
Abstract
OBJECTIVES Aging-related salivary gland changes, such as lymphocyte infiltration and acinar cell loss decrease saliva secretion, thereby affecting quality of life. The precise molecular mechanisms underlying these changes remain unclear. METHODS We here performed single-cell RNA sequencing to clarify gene expression changes in each cell type comprising the submandibular glands (SMGs) of adult and aged mice. RESULTS The proportion of acinar cells decreased in various epithelial clusters annotated with cell type-specific marker genes. Expression levels of the cellular senescence markers, Cdkn2a/p16 and Cdkn1a/p21, were increased in the basal and striated ducts of aged SMGs relative to their levels in those of adult SMGs. In contrast, senescence-associated secretory phenotype-related genes, except transforming growth factor-β, exhibited little change in expression in aged SMGs relative to adult SMGs. CONCLUSIONS Gene Ontology analysis revealed increased expression levels of genes encoding major histocompatibility complex (MHC) class I components in the ductal component cells of aged SMGs. MHC class I expression may thus be associated with salivary gland aging.
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Affiliation(s)
- Shintaro Ohnuma
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, 142-8555, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, 142-8555, Japan
| | - Akane Yukimori
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, 142-8555, Japan
| | - Shoko Ishida
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, 142-8555, Japan
| | - Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, 142-8555, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, 142-8555, Japan.
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2
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Ohshima H, Mishima K. Oral biosciences: The annual review 2023. J Oral Biosci 2024; 66:1-4. [PMID: 38309695 DOI: 10.1016/j.job.2024.01.011] [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: 01/12/2024] [Accepted: 01/21/2024] [Indexed: 02/05/2024]
Abstract
BACKGROUND The Journal of Oral Biosciences is dedicated to advancing and disseminating fundamental knowledge with regard to every aspect of oral biosciences. This review features review articles in the fields of "bone regeneration," "periodontitis," "periodontal diseases," "salivary glands," "sleep bruxism," and "Sjögren's syndrome." HIGHLIGHT This review focuses on human demineralized dentin and cementum matrices for bone regeneration, oxidized low-density lipoprotein in periodontal disease and systemic conditions, the relationship between inflammatory mediators in migraine and periodontitis, phosphoinositide signaling molecules in the salivary glands, and the pathophysiologies of sleep bruxism and Sjögren's syndrome. CONCLUSION The review articles featured in the Journal of Oral Biosciences have broadened the knowledge of readers regarding various aspects of oral biosciences. The current editorial review discusses the findings and significance of these review articles.
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Affiliation(s)
- Hayato Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata, 951-8514, Japan.
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
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Mishima K, Tsuji T, Kodama K, Hayashida H, Kikuchi K, Okuno S, Ochi K, Hiraoka D, Ishimura D, Mizuki S. Сarotid artery ultrasonography for diagnosis and monitoring of cervical and intracranial large vessel vasculitis in a patient with systemic lupus erythematosus and Sjögren syndrome. QJM 2024; 117:63-65. [PMID: 37788134 DOI: 10.1093/qjmed/hcad223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Indexed: 10/05/2023] Open
Affiliation(s)
- K Mishima
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - T Tsuji
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - K Kodama
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - H Hayashida
- Department of Neurology, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - K Kikuchi
- Department of Radiology, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - S Okuno
- Department of Ophthalmology, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - K Ochi
- Clinical Training Center, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - D Hiraoka
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
- Department of Hematology, Clinical Immunology and Infectious Diseases, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - D Ishimura
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
| | - S Mizuki
- Center for Rheumatic Diseases, Matsuyama Red Cross Hospital, Matsuyama, Ehime, Japan
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Fujiie T, Hino M, Hosobata T, Ichikawa G, Kitaguchi M, Mishima K, Seki Y, Shimizu HM, Yamagata Y. Development of Neutron Interferometer Using Multilayer Mirrors and Measurements of Neutron-Nuclear Scattering Length with Pulsed Neutron Source. Phys Rev Lett 2024; 132:023402. [PMID: 38277600 DOI: 10.1103/physrevlett.132.023402] [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: 07/21/2023] [Revised: 10/05/2023] [Accepted: 11/07/2023] [Indexed: 01/28/2024]
Abstract
This study entailed the successful deployment of a novel neutron interferometer that utilizes multilayer mirrors. The apparatus facilitates a precise evaluation of the wavelength dependence of interference fringes utilizing a pulsed neutron source. Our interferometer achieved an impressive precision of 0.02 rad within a 20-min recording time. Compared to systems using silicon crystals, the measurement sensitivity was maintained even when using a simplified disturbance suppressor. By segregating beam paths entirely, we achieved successful measurements of neutron-nuclear scattering lengths across various samples. The values measured for Si, Al, and Ti were in agreement with those found in the literature, while V showed a disparity of 45%. This discrepancy may be attributable to impurities encountered in previous investigations. The accuracy of measurements can be enhanced further by mitigating systematic uncertainties that are associated with neutron wavelength, sample impurity, and thickness. This novel neutron interferometer enables us to measure fundamental parameters, such as the neutron-nuclear scattering length of materials, with a precision that surpasses that of conventional interferometers.
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Affiliation(s)
- Takuhiro Fujiie
- Department of Physics, Nagoya University, Furocho Chikusa, Nagoya 464-8602, Aichi, Japan
- RIKEN Center for Advanced Photonics, Hirosawa 2-1, Wako 351-0198, Saitama, Japan
| | - Masahiro Hino
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2, Asashiro-Nishi, Kumatori, Sennan-gun 590-0494, Osaka, Japan
| | - Takuya Hosobata
- RIKEN Center for Advanced Photonics, Hirosawa 2-1, Wako 351-0198, Saitama, Japan
| | - Go Ichikawa
- High Energy Accelerator Research Organization, Tokai, Ibaraki 319-1106, Japan
- J-PARC Center, 2-4 Tokai, Ibaraki 319-1195, Japan
| | - Masaaki Kitaguchi
- Department of Physics, Nagoya University, Furocho Chikusa, Nagoya 464-8602, Aichi, Japan
- High Energy Accelerator Research Organization, Tokai, Ibaraki 319-1106, Japan
- Kobayashi-Maskawa Institute, Nagoya University, Furocho Chikusa, Nagoya 464-8602, Aichi, Japan
| | - Kenji Mishima
- High Energy Accelerator Research Organization, Tokai, Ibaraki 319-1106, Japan
- J-PARC Center, 2-4 Tokai, Ibaraki 319-1195, Japan
| | - Yoshichika Seki
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
| | - Hirohiko M Shimizu
- Department of Physics, Nagoya University, Furocho Chikusa, Nagoya 464-8602, Aichi, Japan
- High Energy Accelerator Research Organization, Tokai, Ibaraki 319-1106, Japan
| | - Yutaka Yamagata
- RIKEN Center for Advanced Photonics, Hirosawa 2-1, Wako 351-0198, Saitama, Japan
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Tokumasu R, Yasuhara R, Kang S, Funatsu T, Mishima K. Transcription factor FoxO1 regulates myoepithelial cell diversity and growth. Sci Rep 2024; 14:1069. [PMID: 38212454 PMCID: PMC10784559 DOI: 10.1038/s41598-024-51619-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 01/08/2024] [Indexed: 01/13/2024] Open
Abstract
Salivary gland myoepithelial cells regulate saliva secretion and have been implicated in the histological diversity of salivary gland tumors. However, detailed functional analysis of myoepithelial cells has not been determined owing to the few of the specific marker to isolate them. We isolated myoepithelial cells from the submandibular glands of adult mice using the epithelial marker EpCAM and the cell adhesion molecule CD49f as indicators and found predominant expression of the transcription factor FoxO1 in these cells. RNA-sequence analysis revealed that the expression of cell cycle regulators was negatively regulated in FoxO1-overexpressing cells. Chromatin immunoprecipitation analysis showed that FoxO1 bound to the p21/p27 promoter DNA, indicating that FoxO1 suppresses cell proliferation through these factors. In addition, FoxO1 induced the expression of ectodysplasin A (Eda) and its receptor Eda2r, which are known to be associated with X-linked hypohidrotic ectodermal dysplasia and are involved in salivary gland development in myoepithelial cells. FoxO1 inhibitors suppressed Eda/Eda2r expression and salivary gland development in primordial organ cultures after mesenchymal removal. Although mesenchymal cells are considered a source of Eda, myoepithelial cells might be one of the resources of Eda. These results suggest that FoxO1 regulates myoepithelial cell proliferation and Eda secretion during salivary gland development in myoepithelial cells.
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Affiliation(s)
- Rino Tokumasu
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
- Division of Dentistry for Persons with Disabilities, Department of Perioperative Medicine, Graduate School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan.
| | - Seya Kang
- Division of Dentistry for Persons with Disabilities, Department of Perioperative Medicine, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Takahiro Funatsu
- Department of Pediatric Dentistry, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan.
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Abstract
Salivary gland myoepithelial cells regulate salivary secretion and have been implicated in the histological diversity of salivary gland tumors. However, isolation of myoepithelial cells has been difficult owing to a lack of detailed functional analysis and cell surface markers. Therefore, we aimed to isolate myoepithelial cells from adult mouse submandibular glands using the epithelial marker EpCAM and cell adhesion factor CD49f as indicators and characterize them via sphere-forming culture. Functional analysis of specific gene expression in myoepithelial cells is possible via cell transfection experiments using the piggyBac transposon vector system. Here, we describe detailed methods and tips for the isolation and functional analysis of myoepithelial cells.
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Affiliation(s)
- Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan.
| | - Seya Kang
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Rino Tokumasu
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan.
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7
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Takakura M, Mizutani A, Kudo M, Ishikawa A, Okamoto T, Fu TX, Kurimoto SI, Koike Y, Mishima K, Tanaka J, Inoue T, Kawazoe K. Goji Berry Juice Prevents Tumor Necrosis Factor Alpha-Induced Xerostomia in Human Salivary Gland Cells. Biol Pharm Bull 2024; 47:138-144. [PMID: 38171773 DOI: 10.1248/bpb.b23-00456] [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] [Indexed: 01/05/2024]
Abstract
Sjögren's syndrome (SS) is an autoimmune disorder characterized by oral dryness that is primarily attributed to tumor necrosis factor alpha (TNF-α)-mediated reduction in saliva production. In traditional Chinese medicine, goji berries are recognized for their hydrating effect and are considered suitable to address oral dryness associated with Yin deficiency. In the present study, we used goji berry juice (GBJ) to investigate the potential preventive effect of goji berries on oral dryness caused by SS. Pretreatment of human salivary gland cells with GBJ effectively prevented the decrease in aquaporin-5 (AQP-5) mRNA and protein levels induced by TNF-α. GBJ also inhibited histone H4 deacetylation and suppressed the generation of intracellular reactive oxygen species (ROS). Furthermore, GBJ pretreatment reserved mitochondrial membrane potential and suppressed the upregulation of Bax and caspase-3, indicating that GBJ exerted an antiapoptotic effect. These findings suggest that GBJ provides protection against TNF-α in human salivary gland cells and prevents the reduction of AQP-5 expression on the cell membrane. Altogether, these results highlight the potential role of GBJ in preventing oral dryness caused by SS.
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Affiliation(s)
- Masatoshi Takakura
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
| | - Ayano Mizutani
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
| | - Mizuki Kudo
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
| | - Airi Ishikawa
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
| | | | - Tong Xuan Fu
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
- Iskra Industry Co., Ltd
| | - Shin-Ichiro Kurimoto
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
| | - Yuka Koike
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University
| | - Tomio Inoue
- Department of Oral Physiology, School of Dentistry, Showa University
| | - Kazuyoshi Kawazoe
- Division of Natural Medicine and Therapeutics, School of Pharmacy, Showa University
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Tanaka J, Miura A, Shimamura Y, Hwang Y, Shimizu D, Kondo Y, Sawada A, Sarmah H, Ninish Z, Mishima K, Mori M. Generation of salivary glands derived from pluripotent stem cells via conditional blastocyst complementation. bioRxiv 2023:2023.11.13.566845. [PMID: 38014349 PMCID: PMC10680620 DOI: 10.1101/2023.11.13.566845] [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] [Indexed: 11/29/2023]
Abstract
Various patients suffer from dry mouth due to salivary gland dysfunction. Whole salivary gland generation and transplantation is a potential therapy to resolve this issue. However, the lineage permissible to design the entire salivary gland generation has been enigmatic. Here, we discovered Foxa2 as a lineage critical for generating a salivary gland via conditional blastocyst complementation (CBC). Foxa2 linage, but not Shh nor Pitx2, initiated to label between the boundary region of the endodermal and the ectodermal oral mucosa before primordial salivary gland formation, resulting in marking the entire salivary gland. The salivary gland was agenesis by depleting Fgfr2 under the Foxa2 lineage in the mice. We rescued this phenotype by injecting donor pluripotent stem cells into the mouse blastocysts. Those mice survived until adulthood with normal salivary glands compatible in size compared with littermate controls. These results indicated that CBC-based salivary gland generation is promising for next-generation cell-based therapy.
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Ono S, Yamada A, Tanaka J, Yukimori A, Sasa K, Mishima K, Funatsu T, Kamijo R. BMP-2-mediated signaling suppresses salivary gland development. Biochem Biophys Res Commun 2023; 681:1-6. [PMID: 37742472 DOI: 10.1016/j.bbrc.2023.09.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/12/2023] [Accepted: 09/17/2023] [Indexed: 09/26/2023]
Abstract
Research regarding the process of salivary gland development and elucidation of related mechanisms are considered essential for development of effective treatments for conditions associated with salivary disease. Various reports regarding the effects of bone morphogenetic protein (BMP)-2 on hard tissue cells have been presented, though few have examined those related to salivary gland formation. Using an organ culture system, the present study was conducted to investigate the function of BMP-2 in salivary gland formation. Salivary glands obtained from embryonic day 13.5 mice and treated with BMP-2 showed suppression of primordial cell differentiation and also gland formation in a concentration-dependent manner. Furthermore, gland formation inhibition was suppressed by concurrent treatment with dorsomorphin, an inhibitor of the Smad pathway. Expression levels of AQP5, a marker gene for acinar cells, and Prol1, an opiorphin expressed in the lacrimal gland, were decreased in salivary glands treated with BMP-2. The present findings indicate that suppression of salivary gland formation, especially acinar differentiation, is induced by BMP-2, a phenomenon considered to be related to the Smad pathway.
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Affiliation(s)
- Shinnosuke Ono
- Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan; Department of Perioperative Medicine, Division of Dentistry for Persons with Disabilities, School of Dentistry, Showa University, Tokyo, Japan; Department of Biochemistry, Graduate School of Dentistry, Showa University, Tokyo, Japan
| | - Atsushi Yamada
- Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan.
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Akane Yukimori
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Kiyohito Sasa
- Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Takahiro Funatsu
- Department of Perioperative Medicine, Division of Dentistry for Persons with Disabilities, School of Dentistry, Showa University, Tokyo, Japan; Department of Pediatric Dentistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Ryutaro Kamijo
- Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan
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Mishima K, Kano N. Contribution Factors of the First Kind Calculated for the Marcus Electron-Transfer Rate and Their Applications. J Phys Chem B 2023; 127:8509-8524. [PMID: 37782079 DOI: 10.1021/acs.jpcb.3c03420] [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: 10/03/2023]
Abstract
In this study, we applied the concept of the "contribution factor of the first kind (CFFK)" to the original electron-transfer (ET) rate theory proposed by Marcus. Mathematical derivations provided simple and convenient formulas for estimating the relative contributions of ten physical and chemical parameters involved in the Marcus ET rate formula: (1) the maximum strength of the electronic coupling energy between two molecules, (2) the exponential decay rate of the electronic coupling energy versus the distance between both molecules, (3) the distance between both molecules, (4) the equilibrium distance between both molecules, (5) the Gibbs free energy, (6) reorganization free energy in the prefactor of the Marcus ET rate equation, (7) reorganization free energy in the denominator of the exponential term, (8) reorganization free energy in the argument of the exponential term, (9) Boltzmann constant times absolute temperature in the prefactor of the rate equation, and (10) Boltzmann constant times absolute temperature in the denominator of the exponential term. We applied our theories to (i) ET reactions at bacterial photosynthesis reaction centers, PSI and PSII, and soluble ferredoxins (Fd); (ii) intraprotein ET reactions for designed azurin mutants; and (iii) ET reactions in flavodoxin (Fld). The formulas and calculations suggest that the theory behind the CFFK is useful for quantitatively identifying major and minor physical and chemical factors and corresponding trade-offs, all of which affect the magnitude of the Marcus ET rate.
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Affiliation(s)
- Kenji Mishima
- Independent Researcher, Bunkyo-ku, Tokyo 113-0024, Japan
| | - Naoki Kano
- Department of Chemistry and Chemical Engineering, Faculty of Engineering, Niigata University, 8050 Ikarashi 2-Nocho, Nishi-ku, Niigata 950-2181, Japan
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11
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Okamoto N, Mineta S, Mishima K, Fujiyama Y, Wakabayashi T, Fujita S, Sakamoto J, Wakabayashi G. Comparison of short-term outcomes of robotic and laparoscopic transabdominal peritoneal repair for unilateral inguinal hernia: a propensity-score matched analysis. Hernia 2023; 27:1131-1138. [PMID: 36595086 DOI: 10.1007/s10029-022-02730-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 10/12/2022] [Accepted: 12/19/2022] [Indexed: 01/04/2023]
Abstract
PURPOSE This study aimed to compare perioperative outcomes of robotic and laparoscopic transabdominal peritoneal repair (TAPP) for unilateral inguinal hernia. METHODS This single institutional retrospective cohort study used de-identified data of patients who underwent robotic TAPP (R-TAPP) or laparoscopic TAPP (L-TAPP) for unilateral inguinal hernia between January 1, 2016 and October 31, 2021. Two cohorts were propensity matched, and data were analyzed. The learning curve was evaluated in the R-TAPP group. RESULTS Among 938 patients analyzed, 704 were included. After propensity-score matching, 80 patients were included in each group. The difference in operative time between R-TAPP and L-TAPP groups was 10 min (99.5 and 89.5 min, p = 0.087); however, console/laparoscopic time was similar (67 and 66 min, p = 0.71). The dissection time for medial-type hernia in the R-TAPP group was marginally shorter than that in the L-TAPP group (17 and 27 min, p = 0.056); however, there was no difference for lateral-type hernia (38.5 and 40 min p = 0.37). Perioperative variables, including estimated blood loss, postoperative hospital stay, and postoperative pain, had no significant difference, and chronic pain, which needed medication or intervention, was not observed in each group. The number of cases needed to achieve plateau performance was 7-10 in the R-TAPP group. CONCLUSION This study suggests that R-TAPP was safely introduced, and its perioperative outcomes were not inferior to those of L-TAPP. A shorter dissection time for medial-type hernia might be due to the robot's advantages, and a fast-learning curve could help with the early standardization of the procedure.
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Affiliation(s)
- N Okamoto
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan.
| | - S Mineta
- Department of Surgery, Chiba Tokusyukai Hospital, Funabashi, Japan
| | - K Mishima
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan
| | - Y Fujiyama
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan
| | - T Wakabayashi
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan
| | - S Fujita
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan
| | - J Sakamoto
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan
| | - G Wakabayashi
- Department of Surgery, Ageo Central General Hospital, Ageo, Japan
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12
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Kang S, Yasuhara R, Tokumasu R, Funatsu T, Mishima K. Adipose-derived mesenchymal stem cells promote salivary duct regeneration via a paracrine effect. J Oral Biosci 2023; 65:104-110. [PMID: 36736698 DOI: 10.1016/j.job.2023.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/20/2023] [Accepted: 01/17/2023] [Indexed: 02/03/2023]
Abstract
OBJECTIVES The self-regeneration of exocrine tissues, including salivary glands, is limited and their regeneration mechanism has not yet been fully elucidated. Here we identify the role of adipose-derived mesenchymal stem cells (AMSCs) in salivary gland regeneration. METHODS AMSCs expressing mesenchymal stem cell markers were applied to a submandibular gland injury model and the mechanism of salivary gland repair and regeneration was analyzed. RESULTS Transplanted green fluorescent protein (GFP)-labeled AMSCs grew tightly together and promoted ductal regeneration in the regenerative nodule, with slight infiltration of nonspecific immune cells. A comprehensive gene analysis through RNA-sequencing revealed increased expression of bone morphogenetic protein (BMP), transforming growth factor (TGF), and Wnt in AMSC-transplanted regenerative nodules. The factors released from AMSCs scavenge hydrogen peroxidase-induced reactive oxygen species (ROS) through Wnt promoter activity in vitro. Furthermore, AMSC-conditioned medium recovered the growth of the hydrogen peroxidase-damaged primordium of the submandibular gland culture ex vivo. CONCLUSIONS These results suggest that AMSC-released factors scavenge ROS and maintain salivary gland repair and regeneration via paracrine effects. Thus, AMSCs could be a practical and applicable tool for use in salivary gland regeneration.
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Affiliation(s)
- Seya Kang
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan; Department of Special Needs Dentistry, Department of Pediatric Dentistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan.
| | - Rino Tokumasu
- Department of Special Needs Dentistry, Department of Pediatric Dentistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Takahiro Funatsu
- Department of Special Needs Dentistry, Department of Pediatric Dentistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
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Takahashi Y, Yasuhara R, Tanaka J, Nakano H, Maki K, Mishima K. Transcriptome profiles associated with human periodontal ligament differentiation. J Oral Biosci 2023; 65:40-46. [PMID: 36693474 DOI: 10.1016/j.job.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/17/2023] [Accepted: 01/10/2023] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Tissue differentiation is regulated by transcription factors. This study aimed to identify candidate transcription factors that induce periodontal ligament (PDL) cell differentiation in human pluripotent stem cells (hPSCs). METHODS Human PDL tissues were scraped from the root surfaces of extracted teeth for orthodontic treatment and cultured using the explant culture method. We used RNA-seq to generate gene expression profiles of third-passage PDL cells and compared them with those of undifferentiated human induced pluripotent stem cells (hiPSCs) and human embryonic stem cell (hESC)-derived neural crest (NC) cells (publicly available data). RESULTS Primary cultured PDL cells exhibited a spindle-shaped fibroblast-like appearance and the gene expression of several PDL cell-specific markers. The gene expression profiles of PDL cells were relatively similar to those of hESC-derived NC cells but not those of undifferentiated hiPSCs. Thirty-seven transcription factors were identified as upregulated genes in PDL cells. Pathway analysis showed that differentially expressed genes were enriched in several functional groups and pathways, including the SMAD 2/3 nuclear pathway. CONCLUSIONS We identified 37 upregulated transcription genes in primary cultured PDL cells compared with hESC-derived NC cells. Regulating these genes and the SMAD signaling pathway may be promising ways to induce PDL cells from hPSC-derived NC cells.
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Affiliation(s)
- Yuji Takahashi
- Department of Orthodontics, School of Dentistry, Showa University, Tokyo, 142-8555, Japan; Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Haruhisa Nakano
- Department of Orthodontics, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Koutaro Maki
- Department of Orthodontics, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan.
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14
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Ohshima H, Mishima K. Oral biosciences: The annual review 2022. J Oral Biosci 2023; 65:1-12. [PMID: 36740188 DOI: 10.1016/j.job.2023.01.008] [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: 01/14/2023] [Accepted: 01/25/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND The Journal of Oral Biosciences is devoted to advancing and disseminating fundamental knowledge concerning every aspect of oral biosciences. HIGHLIGHT This review features review articles in the fields of "Bone Cell Biology," "Tooth Development & Regeneration," "Tooth Bleaching," "Adipokines," "Milk Thistle," "Epithelial-Mesenchymal Transition," "Periodontitis," "Diagnosis," "Salivary Glands," "Tooth Root," "Exosome," "New Perspectives of Tooth Identification," "Dental Pulp," and "Saliva" in addition to the review articles by the winner of the "Lion Dental Research Award" ("Plastic changes in nociceptive pathways contributing to persistent orofacial pain") presented by the Japanese Association for Oral Biology. CONCLUSION The review articles in the Journal of Oral Biosciences have inspired its readers to broaden their knowledge about various aspects of oral biosciences. The current editorial review introduces these exciting review articles.
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Affiliation(s)
- Hayato Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan.
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
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15
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Muneem A, Yoshida J, Ekawa H, Hino M, Hirota K, Ichikawa G, Kasagi A, Kitaguchi M, Kodaira S, Mishima K, Nabi JU, Nakagawa M, Sakashita M, Saito N, Saito TR, Wada S, Yasuda N. Study on the reusability of fluorescent nuclear track detectors using optical bleaching. RADIAT MEAS 2022. [DOI: 10.1016/j.radmeas.2022.106863] [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: 11/28/2022]
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16
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Ohshima H, Mishima K, Amizuka N. Oral biosciences: The annual review 2021. J Oral Biosci 2022; 64:1-7. [PMID: 35143953 DOI: 10.1016/j.job.2022.02.001] [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: 01/16/2022] [Revised: 01/28/2022] [Accepted: 02/01/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND The Journal of Oral Biosciences is devoted to advancing and disseminating fundamental knowledge concerning every aspect of oral biosciences. HIGHLIGHT This review features review articles in the fields of "Extracellular Vesicles," "Propolis," "Odontogenic Tumors," "Periodontitis," "Periodontium," "Flavonoids," "Lactoferrin," "Dental Plaque," "Anatomy," "Induced Pluripotent Stem Cells," "Bone Cell Biology," "Dysgeusia," "Dental Caries," and "Dental Pulp Cavity," in addition to the review article by the winners of the "Lion Award" ("Sox9 function in salivary gland development") presented by the Japanese Association for Oral Biology. CONCLUSION These reviews in the Journal of Oral Biosciences have inspired its readers to broaden their knowledge regarding various aspects of oral biosciences. The current editorial review introduces these exciting review articles.
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Affiliation(s)
- Hayato Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata, 951-8514, Japan.
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Norio Amizuka
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Faculty of Dental Medicine, Hokkaido University, Kita 13 Nishi 7 Kita-ku, Sapporo, 060-8586, Japan
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17
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Sawada K, Momose S, Kawano R, Kohda M, Irié T, Mishima K, Kaneko T, Horie N, Okazaki Y, Higashi M, Tamaru JI. Immunohistochemical staining patterns of p53 predict the mutational status of TP53 in oral epithelial dysplasia. Mod Pathol 2022; 35:177-185. [PMID: 34404905 DOI: 10.1038/s41379-021-00893-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 11/09/2022]
Abstract
Next-generation sequencing of oral squamous cell carcinoma (OSCC) has revealed TP53 as the most frequently mutated gene in OSCC mutually exclusive with human papillomavirus infection. Oral epithelial dysplasia (OED) is defined as a precancerous lesion of OSCC by the current World Health Organization (WHO) classification; therefore, it is assumed that TP53 mutations occur in early precancerous conditions such as OED. Here, we conducted an integrated analysis of TP53, including whole coding sequencing of TP53, FISH analysis of the 17p13.1 locus, and immunohistochemical analysis for p53 (p53-IHC), in 40 OED cases. We detected 20 mutations in 16 (40%) OED cases, and four cases, each harbored two mutations. FISH analysis revealed six of 24 cases (25%) had a deletion on 17p13.1, and four cases had concurrent TP53 mutations and 17p13.1 deletion (2-hit). Also, the increased frequency of TP53 mutations in higher degrees of OED implies acquisition of the mutation is a major event toward OSCC. p53-IHC revealed that overall cases could be categorized into four patterns that correlate well with the mutational status of TP53. Especially, two patterns, broad p53 expression type (pattern HI) and p53 null type (pattern LS), strongly correlated with a missense mutation and nonsense mutation, respectively. Furthermore, seven of the 40 cases progressed to SCC, and six of these seven cases presented pattern HI or LS. Therefore, patterns HI and LS have a high risk for malignant transformation if excisional treatment is not performed irrespective of the dysplasia grade. Although the current WHO classification mainly focuses on morphological criteria for the diagnosis of OED, interobserver discrepancy appears in some instances of the OED diagnosis. Our immunohistochemical analysis supports a more accurate pathological diagnosis for OED in cases of low dysplastic changes or of differential diagnosis with non-dysplastic lesions.
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Affiliation(s)
- Keisuke Sawada
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Shuji Momose
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
| | - Ryutaro Kawano
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Masakazu Kohda
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Tarou Irié
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, Iwate, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - Takahiro Kaneko
- Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Norio Horie
- Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Yasushi Okazaki
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Morihiro Higashi
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Jun-Ichi Tamaru
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
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18
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Abstract
Salivary glands are exocrine glands composed of several cell types, including the ductal, acinar, and basal/myoepithelial cells. They play important roles in maintaining oral homeostasis and health. During early murine development, the salivary glands, which arise as epithelial buds, are produced from primitive oral epithelia through an interaction between the oral epithelium and mesenchyme.We recently reported that salivary gland organoids can be generated from mouse embryonic stem cells (ESCs). We recapitulated the process of embryonic salivary gland development using an organoid culture system. The mouse ESC-derived salivary gland organoids consisted of acinar-, ductal-, and myoepithelial-like cells. In this chapter, we describe a protocol for differentiating salivary gland organoids from ESCs .
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Affiliation(s)
- Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan.
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19
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Takamatsu K, Tanaka J, Katada R, Azuma K, Takakura I, Aota K, Kamatani T, Shirota T, Inoue S, Mishima K. Aging-associated stem/progenitor cell dysfunction in the salivary glands of mice. Exp Cell Res 2021; 409:112889. [PMID: 34678306 DOI: 10.1016/j.yexcr.2021.112889] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 11/25/2022]
Abstract
Although stem cell aging leads to a decline in tissue homeostasis and regenerative capacity, it remains unclear whether salivary gland stem cell function changes during this process. However, the salivary glands are gradually replaced by connective tissue during aging. Here, we show a decline in the stem cell ability of CD133-positive stem/progenitor cells in the salivary glands of aged mice. The CD133-positive cells were isolated from young, adult, and aged mice. The number of CD133-positive cells was significantly decreased in aged mice. They also showed a lower sphere formation capacity compared to young and adult mice. RNA sequencing revealed that CD133-positive cells in aged mice exhibited lower gene expression of several aging-related genes, including FoxO3a, than those in young and adult mice. Salivary gland cells infected with a recombinant lentivirus encoding the FoxO3a gene showed a reduction in oxidative stress induced by hydrogen peroxide compared with those infected with a control virus. Thus, FoxO3a may inhibit stem cell aging via oxidative stress.
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Affiliation(s)
- Koki Takamatsu
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Ryogo Katada
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan; Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Tokyo, Japan
| | - Kotaro Azuma
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Ikuko Takakura
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan; Department of Dentistry, Jikei University School of Medicine, Tokyo, Japan
| | - Keiko Aota
- Department of Oral Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Takaaki Kamatani
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Tokyo, Japan
| | - Tatsuo Shirota
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Tokyo, Japan
| | - Satoshi Inoue
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan; Division of Gene Regulation and Signal Transduction, Research Center of Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan.
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20
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Mishima K, Shoji M, Umena Y, Boero M, Shigeta Y. Estimation of the relative contributions to the electronic energy transfer rates based on Förster theory: The case of C-phycocyanin chromophores. Biophys Physicobiol 2021; 18:196-214. [PMID: 34552842 PMCID: PMC8421246 DOI: 10.2142/biophysico.bppb-v18.021] [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: 02/04/2021] [Accepted: 07/20/2021] [Indexed: 12/01/2022] Open
Abstract
In the present study, we provide a reformulation of the theory originally proposed by Förster which allows for simple and convenient formulas useful to estimate the relative contributions of transition dipole moments of a donor and acceptor (chemical factors), their orientation factors (intermolecular structural factors), intermolecular center-to-center distances (intermolecular structural factors), spectral overlaps of absorption and emission spectra (photophysical factors), and refractive index (material factor) to the excitation energy transfer (EET) rate constant. To benchmark their validity, we focused on the EET occurring in C-phycocyanin (C-PC) chromophores. To this aim, we resorted to quantum chemistry calculations to get optimized molecular structures of the C-PC chromophores within the density functional theory (DFT) framework. The absorption and emission spectra, as well as transition dipole moments, were computed by using the time-dependent DFT (TDDFT). Our method was applied to several types of C-PCs showing that the EET rates are determined by an interplay of their specific physical, chemical, and geometrical features. These results show that our formulas can become a useful tool for a reliable estimation of the relative contributions of the factors regulating the EET transfer rate.
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Affiliation(s)
- Kenji Mishima
- Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Mitsuo Shoji
- Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan.,JST-PRESTO, Kawaguchi, Saitama 332-0012, Japan
| | - Yasufumi Umena
- Department of Physiology, Division of Biophysics, Jichi Medical University, Shimotsuke, Tochigi 329-0498, Japan
| | - Mauro Boero
- University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, France
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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21
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Tanaka K, Tanaka J, Aizawa R, Kato-Tanaka M, Ueno H, Mishima K, Yamamoto M. Structure of junctional epithelium is maintained by cell populations supplied from multiple stem cells. Sci Rep 2021; 11:18860. [PMID: 34552180 PMCID: PMC8458500 DOI: 10.1038/s41598-021-98398-7] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/31/2021] [Indexed: 11/09/2022] Open
Abstract
The junctional epithelium (JE) is an epithelial component that attaches directly to the tooth surface and performs the unique function of protecting against bacterial infections; its destruction causes inflammation of the periodontal tissue and loss of alveolar bone. A recent study that used the single-color lineage tracing method reported that JE is maintained by its stem cells. However, the process by which individual stem cells form the entire JE around a whole tooth remains unclear. Using a 4-color lineage tracing method, we performed a detailed examination of the dynamics of individual stem cells that constitute the entire JE. The multicolor lineage tracing method showed that single-color areas, which were derived from each cell color, replaced all the constituent JE cells 168 d after the administration of tamoxifen. The horizontal section of the first molar showed that the single-color areas in the JE expanded widely. We detected putative stem cells at the external basal layer farthest from the enamel. In this study, JE cells that were supplied from different stem cells were visualized as individual monochromatic regions, and the JE around the first molar was maintained by several JE-specific stem cells. These findings indicated that the JE consisted of several cell populations that were supplied from their multiple stem cells and could help to explore the mechanisms involved in periodontal tissue homeostasis.
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Affiliation(s)
- Keisuke Tanaka
- Department of Periodontology, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo, 145-8515, Japan
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Ryo Aizawa
- Department of Periodontology, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo, 145-8515, Japan
| | - Mayu Kato-Tanaka
- Department of Periodontology, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo, 145-8515, Japan
| | - Hiroo Ueno
- Department of Stem Cell Pathology, Kansai Medical University, 2-5-1 Shin-machi, Hirakata, Osaka, 573-1010, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Matsuo Yamamoto
- Department of Periodontology, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo, 145-8515, Japan.
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22
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Shimomura K, Minatogawa H, Mashiko T, Arioka H, Iihara H, Sugawara M, Hida N, Akiyama K, Nawata S, Tsuboya A, Mishima K, Izawa N, Miyaji T, Honda K, Inada Y, Ohno Y, Katada C, Morita H, Yamaguchi T, Nakajima T. LBA63 Placebo-controlled, double-blinded phase Ⅲ study comparing dexamethasone on day 1 with dexamethasone on days 1 to 4, with combined neurokinin-1 receptor antagonist, palonosetron, and olanzapine in patients receiving cisplatin-containing highly emetogenic chemotherapy: SPARED trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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23
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Harada H, Takeda M, Kohno Y, Nakatsuka SI, Mishima K, Kurose A. Sclerosing mucoepidermoid carcinoma with eosinophilia of the salivary glands: Two additional cases not harboring MAML2 gene rearrangement. Human Pathology: Case Reports 2021. [DOI: 10.1016/j.ehpc.2021.200546] [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: 11/27/2022] Open
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24
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Yoshida Y, Yamada A, Akimoto Y, Abe K, Matsubara S, Hayakawa J, Tanaka J, Kinoshita M, Kato T, Ogata H, Sakashita A, Mishima K, Kubota Y, Kawakami H, Kamijo R, Iijima T. Cdc42 has important roles in postnatal angiogenesis and vasculature formation. Dev Biol 2021; 477:64-69. [PMID: 34019880 DOI: 10.1016/j.ydbio.2021.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 02/06/2019] [Revised: 03/29/2021] [Accepted: 05/06/2021] [Indexed: 12/31/2022]
Abstract
Cdc42, a Rho family low molecular weight G protein, has important roles in various cell functions, including cytoskeletal rearrangement, cell adhesion and cell proliferation and differentiation. To investigate the involvement of Cdc42 in the activities of vascular endothelial cells, we generated Cdc42 conditional knockout mice in which Cdc42 was time -specifically deficient in vascular endothelial cells (Cdc42 fl/fl; VE-Cad CreERT: Cdc42 cKO). When the Cdc42 gene was deleted after birth, Cdc42 cKO mice were smaller than the control mice, and died between postnatal day 8 (P8) and P10. Necropsy findings confirmed that these mice had various pathological aberrances in the vessels of most organs, such as blood flow congestion and blood cell invasion. Electron microscopic observations also revealed that capillary endothelial cells were detached from the basement membrane as well as phagocytosis of dead endothelial cells induced by macrophages. Moreover, vascular sprouting from aortic rings induced by VEGF-A was diminished in samples from the Cdc42 cKO mice because of an endothelial cell proliferation defect. These results suggest that Cdc42 in vascular endothelial cells has important roles in blood vessel formation after birth.
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Affiliation(s)
- Yuko Yoshida
- Department of Perioperative Medicine, Division of Anesthesiology, School of Dentistry, Showa University, Tokyo, Japan; Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Atsushi Yamada
- Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan.
| | - Yoshihiro Akimoto
- Department of Anatomy, Kyorin University School of Medicine, Tokyo, Japan
| | - Kyoko Abe
- Department of Perioperative Medicine, Division of Anesthesiology, School of Dentistry, Showa University, Tokyo, Japan
| | - Sachie Matsubara
- Laboratory for Electron Microscopy, Kyorin University School of Medicine, Tokyo, Japan
| | - Junri Hayakawa
- Laboratory for Electron Microscopy, Kyorin University School of Medicine, Tokyo, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Mitsuhiro Kinoshita
- Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Tadashi Kato
- Department of Internal Medicine, Showa University Yokohama Northern Hospital, Yokohama, Japan
| | - Hiroaki Ogata
- Department of Internal Medicine, Showa University Yokohama Northern Hospital, Yokohama, Japan
| | - Akiko Sakashita
- Department of Internal Medicine, Showa University Yokohama Northern Hospital, Yokohama, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Tokyo, Japan
| | - Hayato Kawakami
- Department of Anatomy, Kyorin University School of Medicine, Tokyo, Japan
| | - Ryutaro Kamijo
- Department of Biochemistry, School of Dentistry, Showa University, Tokyo, Japan
| | - Takehiko Iijima
- Department of Perioperative Medicine, Division of Anesthesiology, School of Dentistry, Showa University, Tokyo, Japan
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25
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Abe K, Tanaka J, Mishima K, Iijima T. Exploring the mechanism of hyperpermeability following glycocalyx degradation: Beyond the glycocalyx as a structural barrier. PLoS One 2021; 16:e0252416. [PMID: 34086745 PMCID: PMC8177458 DOI: 10.1371/journal.pone.0252416] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 05/17/2021] [Indexed: 11/20/2022] Open
Abstract
Pathological hyperpermeability is a morbidity involved in various systemic diseases, including sepsis. The endothelial glycocalyx layer (GCX) plays a key role in controlling vascular permeability and could be a useful therapeutic target. The purpose of the present study was to analyze the functional role of the GCX in vascular permeability and to elucidate its role in pathological conditions. First, male C57BL/6J wild-type mice were used as in vivo models to study the effects of sepsis and the pharmacological digestion of glycosaminoglycans (GAGs) on the GCX. Vascular permeability was evaluated using fluorescein isothiocyanate (FITC)-labeled dextran. Second, the changes in gene expression in vascular endothelial cells after GAGs digestion were compared between a control and a septic model using RNA sequencing. In the in vivo study, the glycocalyx was depleted in both the septic model and the group with pharmacological GAGs digestion. FITC-labeled dextran had leaked into the interstitium in the septic group, but not in the other groups. In the in vitro study, histamine decreased the transendothelial electrical resistance (TEER), indicating an increase in permeability. GAGs digestion alone did not change the TEER, and the effect of histamine on the TEER was not enhanced by GAGs digestion. The gene expression profiles after GAGs digestion differed from the control condition, indicating the initiation of signal transduction. In conclusion, we demonstrated that the structural barrier of the GCX does not solely determine the fluid permeability of the endothelial layer, since enzymatic depletion of the GCX did not increase the permeability. The gene expression findings suggest that the digestion of GAGs alone did not induce hyperpermeability either in vitro or in vivo, although sepsis did induce hyperpermeability. While GAGs degradation by itself does not appear to induce hyperpermeability, it may play an important role in initiating signal transductions.
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Affiliation(s)
- Kyoko Abe
- Division of Anesthesiology, Department of Perioperative Medicine, School of Dentistry, Showa University, Ota City, Tokyo, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Shinagawa, Tokyo, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Shinagawa, Tokyo, Japan
| | - Takehiko Iijima
- Division of Anesthesiology, Department of Perioperative Medicine, School of Dentistry, Showa University, Ota City, Tokyo, Japan
- * E-mail:
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Mizuki S, Horie K, Imabayashi K, Mishima K, Oryoji K. POS0441 DEVELOPMENT OF RHEUMATOID ARTHRITIS AMONG ANTI-CITRULLINATED PROTEIN ANTIBODIES POSITIVE ASYMPTOMATIC INDIVIDUALS: A PROSPECTIVE OBSERVATIONAL STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:In the idividuals with genetic and enviromental risk factors, immune events at mucosal surfaces occur and may precede systemic autoimmunity. Anti-citrullinated protein antibodies (ACPA) are present in the serum for an average of 3-5 years prior to the onset of rheumatoid arthritis (RA) during an asymptomatic period. In ACPA-positivite individuals, the additional presence of RA-related risk factors appears to add significant power for the development of RA. To date, there have been few reports in which clinical courses of ACPA-positive asymptomatic individuals were investigated prospectively.Objectives:To observe the clinical time course of ACPA-positive healthy population for the development of RA.Methods:Healthy volunteers without joint pain or stiffness, who attended the comprehensive health screening of our hospital, were enrolled in this prospective observational study. The serum ACPA levels were quantified by Ig-G anti-cyclic citrullinated peptide enzyme-linked immunosorbent assay with levels > 4.4 U/mL considered positive. ACPA-positive subjects were followed by rheumatologists of our department clinically or a questionnaire sent by mail for screening to detect arthritis.Results:5,971 healthy individuals without joint symptons were included. Ninty-two (1.5%) were positive for ACPA. Of these, 19 (20.7%) developed RA and two were suspected as RA by mail questionnaire. Their average age were 58-years, and women were 68%. The average duration between the date of serum sampling and diagnosis was 10.7 months. ACPA-positive individuals who developed to RA had higher serum ACPA and Ig-M rheumatoid factor levels than ACPA-positive individuals who did not (P value by Mann-Whitney U test: 0.002, 0.005, respectively).Conclusion:Among ACPA-positive asymptomatic individuals, 20% developed RA. The higher titer of ACPA and Ig-M rheumatoid factor levels are risk factors for devoloping RA.Disclosure of Interests:None declared
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Tanaka J, Mishima K. Application of regenerative medicine to salivary gland hypofunction. Jpn Dent Sci Rev 2021; 57:54-59. [PMID: 33995711 PMCID: PMC8102160 DOI: 10.1016/j.jdsr.2021.03.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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] [Received: 05/19/2019] [Revised: 02/15/2021] [Accepted: 03/17/2021] [Indexed: 12/29/2022] Open
Abstract
Dry mouth results from hypofunction of the salivary glands due to Sjögren's syndrome (SS), various medications, and radiation therapy for head and neck cancer. In severe cases of salivary gland hypofunction, sialagogues are not always effective due to the loss of salivary parenchyma. Therefore, regenerative medicine using stem cell therapy is a promising treatment for severe cases. Stem cells are classified into three groups: tissue stem cells, embryonic stem cells, and induced pluripotent stem cells. Tissue stem cells, such as hematopoietic stem cells (HSCs), mesenchymal stem cells (MSCs) and salivary stem/progenitor cells, could rescue irradiation-induced salivary gland hypofunction. Both HSCs and MSCs can rescue salivary gland hypofunction through soluble factors in a paracrine manner, while salivary stem/progenitor cells can reconstitute the damaged salivary glands. In fact, we clarified that CD133-positive cells in mouse submandibular glands showed stem cell features, which reconstituted the damaged salivary glands. Furthermore, we focused on the challenge of producing functional salivary glands that are three-dimensionally induced from mouse ES cells.
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Affiliation(s)
- Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
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Ohshima H, Mishima K, Amizuka N. Oral biosciences: The annual review 2020. J Oral Biosci 2021; 63:1-7. [PMID: 33582294 DOI: 10.1016/j.job.2021.02.001] [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: 01/19/2021] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The Journal of Oral Biosciences is devoted to the advancement and dissemination of fundamental knowledge concerning every aspect of oral biosciences. HIGHLIGHT This review featured the review articles in the fields of "Microbiology," "Palate," "Stem Cells," "Mucosal Diseases," "Bone Cell Biology," "MicroRNAs," "TRPV1 Cation Channels," and "Interleukins" in addition to the review article by prize-winners of the "Rising Members Award" ("DKK3 expression and function in head and neck squamous cell carcinoma and other cancers"), presented by the Japanese Association for Oral Biology. CONCLUSION These reviews in the Journal of Oral Biosciences have inspired the readers of the journal to broaden their knowledge regarding the various aspects of oral biosciences. The current editorial review introduces these exciting review articles.
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Affiliation(s)
- Hayato Ohshima
- Division of Anatomy and Cell Biology of the Hard Tissue, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan.
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Norio Amizuka
- Department of Developmental Biology of Hard Tissue, Graduate School of Dental Medicine, Faculty of Dental Medicine, Hokkaido University, Kita 13 Nishi 7 Kita-ku, Sapporo 060-8586, Japan
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Tanaka J, Takamatsu K, Yukimori A, Kujiraoka S, Ishida S, Takakura I, Yasuhara R, Mishima K. Sox9 function in salivary gland development. J Oral Biosci 2021; 63:8-13. [PMID: 33497841 DOI: 10.1016/j.job.2021.01.005] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/08/2021] [Accepted: 01/13/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Organogenesis is regulated by morphogen signaling and transcription networks. These networks differ between organs, and identifying the organ-specific network is important to clarify the molecular mechanisms of development and regeneration of organs. Several studies have been conducted to identify salivary gland-specific networks using a mouse submandibular gland model. The submandibular glands (SMGs) of mice manifest as a thickening of the oral epithelium at embryonic day 11.5 and invaginate into the underlying mesenchyme. The network between Fgf10 and Sox9 is involved in SMG development in mice. HIGHLIGHT Sox9, a member of the Sox family, is expressed in the SMG in mice from the embryonic stage to the adult stage, although the distribution changes during development. A null mutation of mouse Sox9 is lethal during the neonatal period due to respiratory failure, whereas deletion of Sox9 in the oral epithelium using the Cre/lox P system, can lead to smaller initial buds of SMGs in conditional knockout (cKO) mice than in normal mice. In addition, we showed that adenoviral transduction of Sox9 and Foxc1 genes into mouse embryonic stem cell-derived oral ectoderm could induce salivary gland rudiment in an organoid culture system. ChIP-sequencing revealed that Sox9 possibly regulates several tube- and branching-formation-related genes. CONCLUSION Sox9 may serve as an essential transcription factor for salivary gland development. The Sox9-mediated pathway can be a promising candidate for regenerating damaged salivary glands.
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Affiliation(s)
- Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Koki Takamatsu
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Akane Yukimori
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Satoko Kujiraoka
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Shoko Ishida
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Ikuko Takakura
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
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Hirota K, Ariga T, Hino M, Ichikawa G, Kawasaki S, Kitaguchi M, Mishima K, Muto N, Naganawa N, Shimizu HM. Neutron Imaging Using a Fine-Grained Nuclear Emulsion. J Imaging 2021; 7:jimaging7010004. [PMID: 34460575 PMCID: PMC8321261 DOI: 10.3390/jimaging7010004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 10/30/2020] [Revised: 12/09/2020] [Accepted: 12/23/2020] [Indexed: 12/03/2022] Open
Abstract
A neutron detector using a fine-grained nuclear emulsion has a sub-micron spatial resolution and thus has potential to be applied as high-resolution neutron imaging. In this paper, we present two approaches to applying the emulsion detectors for neutron imaging. One is using a track analysis to derive the reaction points for high resolution. From an image obtained with a 9 μm pitch Gd grating with cold neutrons, periodic peak with a standard deviation of 1.3 μm was observed. The other is an approach without a track analysis for high-density irradiation. An internal structure of a crystal oscillator chip, with a scale of approximately 30 μm, was able to be observed after an image analysis.
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Affiliation(s)
- Katsuya Hirota
- Department of Physics, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8602, Japan; (M.K.); (N.M.); (N.N.); (H.M.S.)
- Correspondence:
| | - Tomoko Ariga
- Faculty of Arts and Science, Kyushu University, Motooka Nishi, Fukuoka 819-0395, Japan;
| | - Masahiro Hino
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Osaka 590-0494, Japan;
| | - Go Ichikawa
- High Energy Accelerator Research Organization, Tokai, Ibaraki 319-1106, Japan; (G.I.); (S.K.); (K.M.)
| | - Shinsuke Kawasaki
- High Energy Accelerator Research Organization, Tokai, Ibaraki 319-1106, Japan; (G.I.); (S.K.); (K.M.)
| | - Masaaki Kitaguchi
- Department of Physics, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8602, Japan; (M.K.); (N.M.); (N.N.); (H.M.S.)
- Kobayashi-Maskawa Institute for Origin of Particles and the Universe (KMI), Nagoya University, Furo-Cho, Chikusa, Nagoya 464-8602, Japan
| | - Kenji Mishima
- High Energy Accelerator Research Organization, Tokai, Ibaraki 319-1106, Japan; (G.I.); (S.K.); (K.M.)
| | - Naoto Muto
- Department of Physics, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8602, Japan; (M.K.); (N.M.); (N.N.); (H.M.S.)
| | - Naotaka Naganawa
- Department of Physics, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8602, Japan; (M.K.); (N.M.); (N.N.); (H.M.S.)
- Institute of Materials and Systems for Sustainability, Nagoya University, Furo-Cho, Chikusa, Nagoya 464-8602, Japan
| | - Hirohiko M. Shimizu
- Department of Physics, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8602, Japan; (M.K.); (N.M.); (N.N.); (H.M.S.)
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Mishima K, Shoji M, Umena Y, Boero M, Shigeta Y. Role of the Propionic Acid Side-Chain of C-Phycocyanin Chromophores in the Excited States for the Photosynthesis Process. BCSJ 2020. [DOI: 10.1246/bcsj.20200187] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Kenji Mishima
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Mitsuo Shoji
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
- JST-PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Yasufumi Umena
- Department of Physiology, Division of Biophysics, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Mauro Boero
- University of Strasbourg, Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS, UMR 7504, 23 rue du Loess, F-67034 France
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
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Mishima K, Sakai T, Yokota K, Taniguchi M, Aso Y, Ie Y, Yamashita K. The effect of a two-dimensional structure on the dielectric constant and photovoltaic characteristics. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Imanishi A, Kawazoe T, Hamada Y, Kumagai T, Tsutsui K, Sakai N, Eto K, Noguchi A, Shimizu T, Takahashi T, Han G, Mishima K, Kanbayashi T, Kondo H. Early detection of Niemann-pick disease type C with cataplexy and orexin levels: continuous observation with and without Miglustat. Orphanet J Rare Dis 2020; 15:269. [PMID: 32993765 PMCID: PMC7523321 DOI: 10.1186/s13023-020-01531-4] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/07/2020] [Indexed: 12/30/2022] Open
Abstract
Study objectives Niemann-Pick type C (NPC) is an autosomal recessive and congenital neurological disorder characterized by the accumulation of cholesterol and glycosphingolipids. Symptoms include hepatosplenomegaly, vertical supranuclear saccadic palsy, ataxia, dystonia, and dementia. Some cases frequently display narcolepsy-like symptoms, including cataplexy which was reported in 26% of all NPC patients and was more often recorded among late-infantile onset (50%) and juvenile onset (38%) patients. In this current study, we examined CSF orexin levels in the 10 patients of NPC with and without cataplexy, which supports previous findings. Methods Ten patients with NPC were included in the study (5 males and 5 females). NPC diagnosis was biochemically confirmed in all 10 patients, from which 8 patients with NPC1 gene were identified. We compared CSF orexin levels among NPC, narcoleptic and idiopathic hypersomnia patients. Results Six NPC patients with cataplexy had low or intermediate orexin levels. In 4 cases without cataplexy, their orexin levels were normal. In 5 cases with Miglustat treatment, their symptoms stabilized or improved. For cases without Miglustat treatment, their conditions worsened generally. The CSF orexin levels of NPC patients were significantly higher than those of patients with narcolepsy-cataplexy and lower than those of patients with idiopathic hypersomnia, which was considered as the control group with normal CSF orexin levels. Discussion Our study indicates that orexin level measurements can be an early alert of potential NPC. Low or intermediate orexin levels could further decrease due to reduction in the neuronal function in the orexin system, accelerating the patients’ NPC pathophysiology. However with Miglustat treatment, the orexin levels stabilized or improved, along with other general symptoms. Although the circuitry is unclear, this supports that orexin system is indeed involved in narcolepsy-cataplexy in NPC patients. Conclusion The NPC patients with cataplexy had low or intermediate orexin levels. In the cases without cataplexy, their orexin levels were normal. Our study suggests that orexin measurements can serve as an early alert for potential NPC; furthermore, they could be a marker of therapy monitoring during a treatment.
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Affiliation(s)
- A Imanishi
- Department of Psychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - T Kawazoe
- Department of Neurology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Y Hamada
- Department of Pediatrics, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - T Kumagai
- National Center for Child Health and Development, Tokyo, Japan
| | - K Tsutsui
- Department of Psychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - N Sakai
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - K Eto
- Department of Pediatrics, Tokyo Women's Medical University, Tokyo, Japan
| | - A Noguchi
- Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan
| | - T Shimizu
- Akita Mental Health and Welfare Center, Akita, Japan
| | - T Takahashi
- Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan
| | - G Han
- International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan
| | - K Mishima
- Department of Psychiatry, Akita University Graduate School of Medicine, Akita, Japan.,International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan
| | - T Kanbayashi
- International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan.
| | - H Kondo
- International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan
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Mizuki S, Kai T, Mishima K, Ikeuchi H, Oryoji K. AB0904 PERSISTENCE AND REASONS FOR DISCONTINUATION OF DENOSUMAB IN PATIENTS WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Denosumab, a fully human monoclonal antibody to receptor activator of nuclear factor kappa B ligand, which inhibits osteoclast differentiation, activation and survival, not only increases bone mineral density but also inhibits the progression of bone erosion in patients with rheumatoid arthritis (RA)1-3). Therefore, denosumab have been preferably prescribed for patients with RA recently. The persistence with denosumab, which is administered subcutaneously once every 6 months, was reported higher than with oral bisphosphonates4), and in the prospective cohort studies, the persistence rate for one year was reported to be 82-95%5-6). However, there have been no report about the persistence in patients with RA treated with denosumab, moreover the reasons for discontinuation of denosumab.Objectives:The aims of this single center retrospective cohort study were 1) to assess the persistence with denosumab in a routine clinical setting and 2) to identify the reasons of discontinuation in patients with RA. And we also reviewed the clinical outcomes of osteonecrosis of the jaw in patients with RA during denosumab treatment.Methods:The present study is based on databases from our hospital, which include age, gender, date of injection of denosumab, as well as information on patients’ characteristics. Patients were included in this study when denosumab were newly started at our department during the period from June 1, 2013 and September 30, 2017. In this study, persistence was defined as patients with an interval between injections of no longer than 6 months plus 8 weeks. Patients were followed until censoring (death, transferring to another hospital) or the end of the study (August 3, 2018).We investigated reasons for the discontinuation of denosumab. Major reasons for the discontinuation of denosumab were classified as adverse event, anxiety over adverse events, patient’s transfer or request, doctor’s careless lack of refilling an injection, and other reason.We identified patients who had been diagnosed as osteonecrosis of the jaw, and demographic, pharmacological, and clinical data were collected from medical records.Results:One hundred and seventy-five patients were identified. Kaplan–Meier analysis showed a slow decline of persistence after initiating denosumab therapy, dropping to 80.4 and 61.9 % after 1 and 2 years of follow-up. When analyzing the reason of discontinuation as adverse events, the persistence rate of denosumab was at 89.4, and 79.4% at 1, and 2 years of follow-up, respectively.During 2-year period, 72 patients discontinued denosumab. A total of 27 adverse events occurred, of which five events were osteonecrosis of the jaw. The other reasons for adverse event included death in four, fracture in three, and so on. Six patients discontinued due to anxiety over dental adverse event. Thirteen patients were in doctor’s careless lack of refilling an injectionAll five patients who were diagnosed as osteonecrosis of the jaw had received the treatment with prednisolone, and four were treated with biologic drugs. All patients stopped denosumab and switched to other drugs including teriparatide. All patients underwent surgical curettages of necrotic bone and cured.Conclusion:Persistence of denosumab in patients with RA is comparable to that in postmenopausal women with osteoporosis. Dental screening and care should be important to continue denosumab treatment.References:[1]Cohen SB.Arthritis Rheum. 2008;58:1299–1309.[2]Takeuchi T.Ann Rheum Dis. 2019;78:899–907.[3]Ebina K.Osteoporos Int. 2018;29:1627–1636.[4]Hadji P.Osteoporos Int. 2016;27:2967–2978.[5]Silverman SL.Arch Osteoporos. 2018;13:85. doi:10.1007/s11657-018-0491-z[6]Hadji P.Osteoporos Int. 2015;26:2479–2489.Disclosure of Interests:Shinichi Mizuki Speakers bureau: AbbVie, Asahi Kasei, Chugai, Eli Lilly, Janssen, Mitsubishi Tanabe, Ono, Tatsuya Kai: None declared, Koji Mishima: None declared, Hiroko Ikeuchi: None declared, Kensuke Oryoji: None declared
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Tokunaga S, Tashiro H, Ono K, Sharmin T, Kato T, Irie K, Mishima K, Satho T, Aida TM, Mishima K. Rapid production of liposomes using high pressure carbon dioxide and direct ultrasonication. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104782] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Imanishi A, Yoshizawa K, Tsutsui K, Omori Y, Ono T, Ito Uemura S, Mishima K, Kondo H, Kanbayashi T. 0757 Increasing Number of Cases Who Had Both Hypersomnolence Disorders and Developmental Disorders With Orexin Measurements. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.753] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Recently, attention has been paid to the relationship between developmental disorders such as attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD), and sleep disorders. We meet many developmental disorder patients who complaint hypersomnolence. Among these patients, cases with coexistence of central hypersomnia and developmental disorders, or developmental disorder alone were increased. Therefore, we first investigated patients with the complaint of hypersomnolence, who were also suspected developmental disorders. Furthermore, we have been measuring CSF orexin in 17 cases suspected of both disorders to investigate orexin levels of these patients.
Methods
86patients who complained of EDS with suspicion of developmental disorders had been examined. In order to diagnose hypersomnolence disorders, PSG and MSLT were performed. Psychological examinations were performed for diagnosing developmental disorders.We have been measuring for CSF orexin in 17 cases suspected both hypersomnolence and developmental disorders. We examined the onset of hypersomnolence and the clinical history of these ADHD or ASD cases for more details.
Results
In 86 examined cases, developmental disorders coexisted in 30 cases. Among 30 cases, ADHD were 18, ASD were 6 and both diagnosed were 6 cases. Among them, 20 cases diagnosed as having coexistence of hypersomnia (8: narcolepsy, 12: IHS) and developmental disorders (ADHD:12, ASD:4, ADHD/ASD:4). In 17 cases with orexin measurements, 10 cases coexisted ADHD and 4 cases coexisted ASD. Two cases diagnosed as both ADHD and ASD. In 10 ADHD cases, 3 cases had low orexin levels, and 7 cases had normal orexin levels. Other 7 ASD cases had normal orexin levels.
Conclusion
ADHD has a higher rate of central hypersomnia (12/18) compared with ASD and the rate of narcolepsy was also high (5/12). While patients in ASD was diagnosed as IHS (3/6), narcolepsy cases were not observed. It became clear that the majority of patients had developmental disorder or had a tendency for developmental disorder before the onset of hypersomnolence.Although it is possible that ADHD/ASD symptoms may be exacerbated by orexin dysfunctions, ADHD/ASD may not newly occur. There were cases with low orexin levels, but it seems that narcolepsy happened to coexist with developmental disorders.
Support
a
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Affiliation(s)
- A Imanishi
- Akita University School of Medicine, Akita, JAPAN
| | - K Yoshizawa
- Akita University School of Medicine, Akita, JAPAN
| | - K Tsutsui
- Akita University School of Medicine, Akita, JAPAN
| | - Y Omori
- Tokyo Metropolitan Geriatric Hospital, Tokyo, JAPAN
| | - T Ono
- Sleep & Circadian Neurobiology Laboratory, Stanford University,, California, CA
| | - S Ito Uemura
- Akita University Graduate School of Health Sciences, Akita, JAPAN
| | - K Mishima
- Akita University School of Medicine, Akita, JAPAN
| | - H Kondo
- International Institute for Integrative Sleep Medicine (IIIS), Tsukuba University,, Tsukuba, JAPAN
| | - T Kanbayashi
- International Institute for Integrative Sleep Medicine (IIIS), Tsukuba University,, Tsukuba, JAPAN
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Tanaka J, Mishima K. In vitro three-dimensional culture systems of salivary glands. Pathol Int 2020; 70:493-501. [PMID: 32367629 DOI: 10.1111/pin.12947] [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: 04/01/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 12/18/2022]
Abstract
Dry mouth can be caused by salivary gland hypofunction due to Sjögren's syndrome (SS) or radiation therapy for head and neck cancer, and it can also be a side effect of medications. The use of sialagogues effectively increases saliva secretion in patients with dry mouth. However, the application of sialagogues is not always satisfactory because of their side effects, such as sweating, nausea, runny nose and diarrhea. Two-dimensional (2D) cell cultures have been used not only for drug screening and discovery but also to clarify disease mechanisms. However, three-dimensional (3D) cell cultures are expected to be even more advantageous than 2D cell cultures. Therefore, we have tried to develop an in vitro cell culture system that can reconstitute 3D salivary glands. Sox9 and Foxc1 were identified as important genes that differentiate mouse embryonic stem cell-derived oral ectoderm into salivary gland placode. Using these genes and organoid culture systems, we succeeded in generating salivary gland organoids that exhibited a morphology and gene expression profile that were similar to those of the embryonic rudiment from which salivary glands arise in normal mice. These organoids are expected to be a promising tool for disease modeling, drug discovery and regenerative medicine in salivary glands.
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Affiliation(s)
- Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
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Mishima K, Kaneko M, Song JW, Kawai H, Yamashita K, Hirao K. Application of accelerated long-range corrected exchange functional [LC-DFT(2Gau)] to periodic boundary condition systems: CO adsorption on Cu(111) surface. J Chem Phys 2020; 152:104105. [PMID: 32171211 DOI: 10.1063/1.5141919] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Several different types of density functional theory (DFT) exchange correlation functionals were applied to a periodic boundary condition (PBC) system [carbon monoxide (CO) adsorbed on Cu(111): CO/Cu(111)] and the differences in the results calculated using these functionals were compared. The exchange correlation functionals compared were those of Perdew-Burke-Ernzerhof (PBE) and those of long-range corrected density functional theory (LC-DFT), such as LC-ωPBE(2Gau) and LC-BLYP(2Gau). Solid state properties such as the partial density of states were calculated in order to elucidate the detailed adsorption mechanisms and back-bonding peculiar to the CO/Cu(111) system. In addition, our benchmark analysis of the correlations among the orbitals of CO and Cu metal using LC-DFT reasonably was in line with the experimentally observed adsorption site. The computation time was reasonable, and other numerical results were found to agree well with the experimental results and also with the theoretical results of other researchers. This suggests that the long-range Hartree-Fock exchange integral should be included to correctly predict the electronic nature of PBC systems.
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Affiliation(s)
- Kenji Mishima
- Center for Computational Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan
| | - Masanori Kaneko
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8510, Japan
| | - Jong-Won Song
- Department of Chemistry Education, Daegu University, 201 Daegudae-ro, 38453 Gyeongsan, South Korea
| | - Hiroki Kawai
- Institute of Memory Technology Research and Development Center, Kioxia Corporation, 580-1 Horikawacho, Saiwai-ku, Kawasaki 212-0013, Japan
| | - Koichi Yamashita
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8510, Japan
| | - Kimihiko Hirao
- RIKEN Center for Computational Science, 7-1-26, Minatojima-Minami-Machi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
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Kawashima A, Yasuhara R, Akino R, Mishima K, Nasu M, Sekizawa A. Engraftment potential of maternal adipose-derived stem cells for fetal transplantation. Heliyon 2020; 6:e03409. [PMID: 32154403 PMCID: PMC7057202 DOI: 10.1016/j.heliyon.2020.e03409] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 01/05/2023] Open
Abstract
Advances in prenatal molecular testing have made it possible to diagnose most genetic disorders early in gestation. In utero mesenchymal stem cell (MSC) therapy can be a powerful tool to cure the incurable. With this in mind, this method could ameliorate potential physical and functional damage. However, the presence of maternal T cells trafficking in the fetus during pregnancy is thought to be the major barrier to achieving the engraftment into the fetus. We investigated the possibility of using maternal adipose-derived stem cells (ADSCs) for in utero transplantation to improve engraftment, thus lowering the risk of graft rejection. Herein, fetal brain engraftment using congenic and maternal ADSC grafts was examined via in utero stem cell transplantation in a mouse model. ADSCs were purified using the mesenchymal stem cell markers, PDGFRα, and Sca-1 via fluorescence-activated cell sorting. The PDGFRα+Sca-1+ ADSCs were transplanted into the fetal intracerebroventricular (ICV) at E14.5. The transplanted grafts grew for at least 28 days after in utero transplantation with PDGFRα+Sca-1+ ADSC, and mature neuronal markers were also detected in the grafts. Furthermore, using the maternal sorted ADSCs suppressed the innate immune response, preventing the infiltration of CD8 T cells into the graft. Thus, in utero transplantation into the fetal ICV with the maternal PDGFRα+Sca-1+ ADSCs may be beneficial for the treatment of congenital neurological diseases because of the ability to reduce the responses after in utero stem cell transplantation and differentiate into neuronal lineages.
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Affiliation(s)
- Akihiro Kawashima
- Department of Obstetrics and Gynecology, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8666, Japan
| | - Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Ryosuke Akino
- Department of Obstetrics and Gynecology, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8666, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8555, Japan
| | - Michiko Nasu
- Department of Obstetrics and Gynecology, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8666, Japan
| | - Akihiko Sekizawa
- Department of Obstetrics and Gynecology, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa, Tokyo, 142-8666, Japan
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Goto Y, Ibi M, Sato H, Tanaka J, Yasuhara R, Aota K, Azuma M, Fukada T, Mishima K, Irié T. PLAG1 enhances the stemness profiles of acinar cells in normal human salivary glands in a cell type-specific manner. J Oral Biosci 2020; 62:99-106. [PMID: 32007659 DOI: 10.1016/j.job.2020.01.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/27/2019] [Accepted: 12/13/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Details of the histogenesis of salivary gland tumors are largely unknown. The oncogenic role of PLAG1 in the salivary gland has been demonstrated in vivo. Herein, we demonstrate PLAG1 roles in the acinar and ductal cells of normal human salivary glands to clarify the early events that occur during the histogenesis of salivary gland tumors. METHODS Normal salivary gland cells with acinar and ductal phenotypes were transfected with PLAG1 plasmid DNA. Subsequently, PLAG1 overexpressed and mock cells were examined by cell proliferation, transwell migration, and salisphere formation assays. Differentiation and salivary and pluripotent stem cell marker expression levels were evaluated by quantitative reverse transcription-polymerase chain reaction and immunofluorescence. Alterations in transcriptional expressions were investigated via cap analysis of gene expression with gene-enrichment and functional annotation analysis. RESULTS PLAG1 promoted cell proliferation and transwell migration in the acinar and ductal cells, and markedly enhanced the stemness profiles and luminal cell-like profiles in acinar cells; the stemness profiles were partially increased in the ductal cells. CONCLUSION PLAG1 enhanced the stemness profiles in the acinar cells of normal human salivary glands in a cell type-specific manner. Thus, it may be involved in salivary gland tumorigenesis by increasing the stemness character of the normal salivary gland cells.
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Affiliation(s)
- Yuriko Goto
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Miho Ibi
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Hirotaka Sato
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Rika Yasuhara
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Keiko Aota
- Department of Oral Medicine, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8504, Japan
| | - Masayuki Azuma
- Department of Oral Medicine, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8504, Japan
| | - Toshiyuki Fukada
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihamabouji, Yamashiro, Tokushima, 770-8055, Japan; RIKEN Center for Integrative Medical Sciences, 1-7-22 Suehiro, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Tarou Irié
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, 1-1-1 Idaidori, Yahaba-cho, Shiwa-gun, Iwate, 028-3694, Japan; Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
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Mitani R, Tashiro H, Arita E, Ono K, Haraguchi M, Tokunaga S, Sharmin T, Aida TM, Mishima K. Extraction of nobiletin and tangeretin with antioxidant activity from peels of Citrus poonensis using liquid carbon dioxide and ethanol entrainer. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2020.1713813] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ryunosuke Mitani
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Hiroyuki Tashiro
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Eito Arita
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Kento Ono
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Masashi Haraguchi
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Shinichi Tokunaga
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Tanjina Sharmin
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan
| | - Taku Michael Aida
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan
| | - Kenji Mishima
- Department of Chemical Engineering, Faculty of Engineering, Fukuoka University, Fukuoka, Japan
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan
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Aida TM, Oshima M, Sharmin T, Mishima K, Smith RL. Controlled conversion of sodium hyaluronate into low-molecular-weight polymers without additives using high-temperature water and fast-heating-rates. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2019.104638] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Nagakubo J, Nishihashi T, Mishima K, Yamashita K. First-principles approach to the first step of metal–phosphine bond formation to synthesize alloyed quantum dots using dissimilar metal precursors. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2019.110512] [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: 11/28/2022]
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Honjo M, Yasuhide O, Yamada M, Higuchi S, Mishima K, Sharmin T, Aida TM, Kato T, Misumi M, Suetsugu T, Orii H, Irie K, Sano K, Mishima K, Satho T, Harada T. Characterization and pharmacokinetic evaluation of microcomposite particles of alpha lipoic acid/hydrogenated colza oil obtained in supercritical carbon dioxide. Pharm Dev Technol 2019; 25:359-365. [PMID: 30632427 DOI: 10.1080/10837450.2019.1567760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The work reported here is an extension of our previous findings in which supercritical composite particles (SCP) of alpha lipoic acid (ALA) masked with hydrogenated colza oil (HCO) named as ALA/HCO/SCP were obtained by the modified particles from gas-saturated solutions (PGSS) process in supercritical carbon dioxide in order to obscure the unpleasant taste and odor of ALA. The masking effect on ALA/HCO/SCP was compared with the widely used mechano-chemically masked formulation of ALA and HCO named as MC-50F. In the present study, ALA/HCO/SCP particles were found to have a significant improvement in regard to bitterness, numbness, and smell compared to ALA bulk powders suggesting they were well coated. The pharmacokinetic parameters for ALA/HCO/SCP and ALA bulk powder gave similar values but were significantly different from those of MC-50F. The amount of ALA absorbed into the body, in the administered ALA/HCO/SCP, was comparable to that absorbed by ALA bulk powder, whereas about half portion of ALA of the MC-50F was not absorbed, because the ALA/HCO/SCP particles were small enough and the particles of MC-50F were relatively large and had smaller specific surface area. Therefore, this study suggested a newly masked candidate may offer functional particles with maintained efficacy.
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Affiliation(s)
- Masatoshi Honjo
- Formulation Technology Group Functional Food Research Institute FANCL Research Institute FANCL Corporation, Yokohama, Japan.,Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan
| | - Okuhara Yasuhide
- Functional Evaluation Group Health Science Research Center FANCL Research Institute FANCL Corporation, Yokohama, Japan
| | - Masayoshi Yamada
- Materials Research Group Health Science Research Center FANCL Research Institute FANCL Corporation, Yokohama, Japan
| | - Sei Higuchi
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kenji Mishima
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan.,Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Tanjina Sharmin
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan.,Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Taku Michael Aida
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan.,Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Takafumi Kato
- Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Makoto Misumi
- Department of Electronics Engineering and Computer Science Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Tadashi Suetsugu
- Department of Electronics Engineering and Computer Science Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Hideaki Orii
- Department of Electrical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Keiichi Irie
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kazunori Sano
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kenichi Mishima
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Tomomitsu Satho
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Takunori Harada
- Department of Applied Chemistry Faculty of Engineering, Oita University, Oita, Japan
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Takaesu Y, Utsumi T, Okajima I, Shimura A, Kotorii N, Kuriyama K, Yamashita H, Suzuki M, Watanabe N, Mishima K. Psychosocial intervention for discontinuing benzodiazepine hypnotics in patients with chronic insomnia: a systematic review and meta-analysis. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tanaka J, Mishima K. Reply to Karbanová et al.: Prominin-1/CD133, saliva and salivary glands - Integrating existing data to new clinical approaches. Exp Cell Res 2019; 383:111567. [PMID: 31446163 DOI: 10.1016/j.yexcr.2019.111567] [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] [Received: 08/14/2019] [Accepted: 08/19/2019] [Indexed: 10/26/2022]
Affiliation(s)
- Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, 142-8555, Japan.
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Adachi J, Miyake Y, Suzuki T, Mishima K, Araki R, Nishikawa R. P13.01 TERTpromoter methylation is significantly associated withTERTupregulation and tumor progression in pituitary adenomas. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.222] [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: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Activation of telomerase plays a critical role in tumor development. Somatic alterations in the promoter of the telomerase reverse transcriptase (TERT) gene are a major mechanism of upregulating telomerase. Several mechanisms have been associated with TERT abnormalities, including TERT promoter mutations or methylation. Mutations in the TERT promoter have been observed in a subset of brain tumors, especially in adult gliomas. In pituitary adenomas (PAs), however, TERT abnormalities are not fully understood. The present study aimed to investigate not only mutational but also methylation status changes in the TERT promoter in PAs and to analyze their correlations with clinical variables.
MATERIAL AND METHODS
We retrospectively studied 70 PAs consisting of 53 primary and 17 recurrent samples. Clinical data, including age at surgery, sex, tumor size, tumor subtype, resection rate, presence or absence of postoperative irradiation, and progression-free survival (PFS), were obtained from medical records. First, we investigated TERT promoter hotspot mutations via Sanger sequencing. Next, we quantified the methylation status of the TERT promoter using methylation-sensitive high-resolution melting analysis (MS-HRM). Finally, we investigated TERT mRNA expression levels using real-time quantitative PCR. Fisher’s exact test was applied to evaluate the statistical significance between TERT promoter methylation status and tumor recurrence. PFS was calculated using Kaplan-Meier estimates and compared between methylated with ummethylated PAs with the log-rank test. The correlation between TERT promoter methylation status and mRNA levels was analyzed with the Mann-Whitney U-test. PFS was analyzed using multivariate analysis with the Cox proportional hazards model and included the following variables: age, sex, tumor size, tumor subtype, resection rate, radiation therapy, and methylation status.
RESULTS
TERT promoter hotspot mutations were not observed in any PA sample. Nineteen percent of PAs exhibitedTERT promoter methylation, which was significantly predominant in recurrent PA samples. PFS was significantly shorter in the methylated cases than in the unmethylated cases. Higher TERT expression levels were correlated with methylation status.
CONCLUSION
We found that TERT promoter methylation upregulated TERT expression and was associated with shorter PFS in PAs. Our results suggest thatTERT promoter methylation may be a potential biomarker for predicting tumor recurrence in PAs.
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Affiliation(s)
- J Adachi
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - Y Miyake
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - T Suzuki
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - K Mishima
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
| | - R Araki
- Community Health Science Center, Saitama Medical University, Iruma, Saitama, Japan
| | - R Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Saitama, Japan
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Mishima K, Shirahata M, Adachi J, Suzuki T, Fujimaki T, Nishikawa R. P14.113 The role of maintenance high-dose methotrexate chemotherapy in elderly primary CNS lymphoma patients with complete response to induction immunochemotherapy. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.348] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
The addition of high-dose methotrexate (HD-MTX)-based chemotherapy to whole brain irradiation (WBRT) has improved the prognosis of primary central nervous system lymphoma (PCNSL). However, the high neurotoxicity rates observed, especially in the elderly, raised interest in chemotherapy-only treatments. Withholding radiotherapy substantially decreases the risk of neurotoxicity, however, disease control may be compromised. Therefore, developing a novel treatment for the elderly PCNSL patients (ePCNSL) is crucial. In the elderly who cannot tolerate WBRT as a consolidation, maintenance treatment may serve as a feasible approach after an initial response. We treated ePCNSL with induction immunochemotherapy with rituximab (RIT) and HD-MTX, maintenance chemotherapy with HD-MTX and deferred WBRT. Here, we retrospectively investigated the prognosis for ePCNSL that became CR after the induction chemotherapy.
MATERIAL AND METHODS
Newly diagnosed ePCNSL (median age: 74 years) received biweekly RIT/ HD-MTX (375 mg/m2/dose; 3.5g/m2/dose) for 6 cycles (induction) followed by monthly RIT/MTX for 2 cycles (consolidation) and then were treated differently according to the radiological response. With CR patients, HD-MTX was continued with every 3 months (maintenance) for 2 years. Patients who did not obtain consent for maintenance therapy were followed up.
RESULTS
Of the 42 ePCNSL (median age 74 years), 26 had CR after induction and consolidation, of which 18 cases were carried out maintenance (M +) and 8 cases were followed up (M-). The median age was 74 and 76, respectively. Median progression-free survival (mPFS) was 73 months in the M+ group and 24.6 months in the M- group. Median overall survival (mOS) is 92.5 months versus 27.6 months, respectively. Both mPFS (P= 0.025) and mOS (P =0.0003) were significantly prolonged by maintenance therapy. In addition, ePCNSL with tumors involvement of deep brain structure had a poor prognosis.
CONCLUSION
It was suggested that maintenance treatment with HD-MTX may improve the prognosis for ePCNSL that reached complete response after induction therapy.
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Affiliation(s)
- K Mishima
- Saitama Medical University, Yamane, Hidaka-shi, Saitama, Japan
| | - M Shirahata
- Saitama Medical University, Yamane, Hidaka-shi, Saitama, Japan
| | - J Adachi
- Saitama Medical University, Yamane, Hidaka-shi, Saitama, Japan
| | - T Suzuki
- Saitama Medical University, Yamane, Hidaka-shi, Saitama, Japan
| | - T Fujimaki
- Saitama Medical University, Yamane, Hidaka-shi, Saitama, Japan
| | - R Nishikawa
- Saitama Medical University, Yamane, Hidaka-shi, Saitama, Japan
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Takenawa T, Harada K, Fujiwara R, Hisano T, Mishima K. MON-PO406: Possibility of Direct Effect of Elemental Diet Elental® on Chemotherapy-Induced Oral Mucositis and Dermatitis. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32239-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Mishima K, Yamashita K. Importance of Side-Chains on Molecular Characteristics of Interacting Organic Molecules. ACS Omega 2019; 4:10396-10404. [PMID: 31460133 PMCID: PMC6648652 DOI: 10.1021/acsomega.9b00012] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 05/31/2019] [Indexed: 05/22/2023]
Abstract
In this work, we have calculated several physical quantities related to two interacting semiconductor organic molecules to reveal the significance and the role of the side-chains. The molecular systems of our target are the geometry-optimized dimer systems: that consisting of two [6,6]-phenyl-C61-butyric acid methyl ester molecules and that consisting of two peryline diimide-related molecules. The physical quantities shown in the present work are their relative molecular geometries, optimized energies, barycentric distances, angles between the two molecular planes, dipole moments, and electronic couplings. We have found that these physical quantities show quite different tendencies among the systems, which results from the absence/presence of the side-chains in these molecular species. It is emphasized that the presence of side-chains brings about the diversity of molecular characteristics in interacting molecules. This may point out the importance of side-chains in the various organic materials in general.
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