1
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Yamguchi T, Mori K, Kojima Y, Hasegawa T, Hirota J, Akashi M, Soutome S, Yoshimatsu M, Nobuhara H, Matsugu Y, Kato S, Shibuya Y, Kurita H, Yamada SI, Nakahara H. Efficacy of perioperative oral care management in the prevention of surgical complications in 503 patients after pancreaticoduodenectomy for resectable malignant tumor: A multicenter retrospective analysis using propensity score matching. Surgery 2024; 175:1128-1133. [PMID: 38061914 DOI: 10.1016/j.surg.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 03/17/2024]
Abstract
BACKGROUND Pancreaticoduodenectomy has been associated with a high mortality rate and significant postoperative morbidity. Recently, perioperative oral care management has been reported to be effective in preventing postoperative pneumonia and surgical site infection. In this study, we examined the effect of perioperative oral care management in reducing complications after pancreaticoduodenectomy, including surgical site infection. METHODS This retrospective multicenter study included 503 patients who underwent pancreaticoduodenectomy at 8 facilities between January 2014 and December 2016. Among these, 144 received perioperative oral management by dentists and dental hygienists (oral management group), whereas the remaining 359 did not (control group). The oral care management program included oral health instructions, removal of dental calculus, professional mechanical tooth cleaning, removal of tongue coating, denture cleaning, instructions for gargling, and tooth extraction. The participants were matched using propensity scores to reduce background bias. Various factors were examined for correlation with the development of complications. RESULTS The incidence of organ/space surgical site infection was significantly lower in the oral management group than in the control group (8.0% vs 19.6%, P = .005). Multivariable logistic regression analysis revealed that hypertension and lack of perioperative oral management were independent risk factors for organ/space surgical site infection. Lack of perioperative oral management had an odds ratio of 2.847 (95% confidence interval 1.335-6.071, P = .007). CONCLUSION Perioperative oral care management reduces the occurrence of surgical site infections after pancreaticoduodenectomy and should be recommended as a strategy to prevent infections in addition to antibiotic use.
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Affiliation(s)
- Taihei Yamguchi
- Department of Preventive Dentistry, Kagoshima University, Japan.
| | - Kazuyo Mori
- Division of Clinical Engineering, Kagoshima University Hospital, Japan
| | - Yuka Kojima
- Department of Dentistry and Oral Surgery, Kansai Medical University, Japan
| | - Takumi Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Japan
| | - Junya Hirota
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Japan
| | - Masaya Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Japan
| | - Sakiko Soutome
- Department of Oral Health, Nagasaki University Graduate School of Biomedical Sciences, Japan
| | | | | | - Yasuhiro Matsugu
- Department of Gastroenterological, Breast and Transplant Surgery, Hiroshima Prefectural Hospital, Japan; Department of Clinical Nutrition, Hiroshima Prefectural Hospital, Japan
| | - Shinichiro Kato
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Japan
| | - Yasuyuki Shibuya
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Japan
| | - Hiroshi Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Japan
| | - Shin-Ichi Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Japan; Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Academic Assembly, University of Toyama, Japan
| | - Hirokazu Nakahara
- Department Oral and Maxillofacial Surgery, Osaka Metrpolitan University Graduate School of Medicine, Japan
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2
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Xiao M, Kondo S, Nomura M, Kato S, Nishimura K, Zang W, Zhang Y, Akashi T, Viny A, Shigehiro T, Ikawa T, Yamazaki H, Fukumoto M, Tanaka A, Hayashi Y, Koike Y, Aoyama Y, Ito H, Nishikawa H, Kitamura T, Kanai A, Yokoyama A, Fujiwara T, Goyama S, Noguchi H, Lee SC, Toyoda A, Hinohara K, Abdel-Wahab O, Inoue D. BRD9 determines the cell fate of hematopoietic stem cells by regulating chromatin state. Nat Commun 2023; 14:8372. [PMID: 38102116 PMCID: PMC10724271 DOI: 10.1038/s41467-023-44081-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/29/2023] [Indexed: 12/17/2023] Open
Abstract
ATP-dependent chromatin remodeling SWI/SNF complexes exist in three subcomplexes: canonical BAF (cBAF), polybromo BAF (PBAF), and a newly described non-canonical BAF (ncBAF). While cBAF and PBAF regulate fates of multiple cell types, roles for ncBAF in hematopoietic stem cells (HSCs) have not been investigated. Motivated by recent discovery of disrupted expression of BRD9, an essential component of ncBAF, in multiple cancers, including clonal hematopoietic disorders, we evaluate here the role of BRD9 in normal and malignant HSCs. BRD9 loss enhances chromatin accessibility, promoting myeloid lineage skewing while impairing B cell development. BRD9 significantly colocalizes with CTCF, whose chromatin recruitment is augmented by BRD9 loss, leading to altered chromatin state and expression of myeloid-related genes within intact topologically associating domains. These data uncover ncBAF as critical for cell fate specification in HSCs via three-dimensional regulation of gene expression and illuminate roles for ncBAF in normal and malignant hematopoiesis.
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Affiliation(s)
- Muran Xiao
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Shinji Kondo
- Center for Genome Informatics, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, National Institute of Genetics, Mishima, Japan
- Advanced Genomics Center, National Institute of Genetics, Mishima, Japan
| | - Masaki Nomura
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
- Facility for iPS Cell Therapy, CiRA Foundation, Kyoto, Japan
| | - Shinichiro Kato
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Institute for Advanced Study, Nagoya University, Nagoya, Japan
- Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koutarou Nishimura
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
| | - Weijia Zang
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yifan Zhang
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomohiro Akashi
- Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Division of Systems Biology, Center for Neurological Diseases and Cancer, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Aaron Viny
- Department of Medicine, Division of Hematology and Oncology, and Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Tsukasa Shigehiro
- Division of Immunobiology, Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba, Japan
| | - Tomokatsu Ikawa
- Division of Immunobiology, Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba, Japan
| | - Hiromi Yamazaki
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
| | - Miki Fukumoto
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
| | - Atsushi Tanaka
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
- Laboratory of Immunology, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Yasutaka Hayashi
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
| | - Yui Koike
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
| | - Yumi Aoyama
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiromi Ito
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
| | - Hiroyoshi Nishikawa
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Institute for Advanced Study, Nagoya University, Nagoya, Japan
- Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Chiba, Japan
| | - Toshio Kitamura
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Akinori Kanai
- Department of Molecular Oncology and Leukemia Program Project, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Akihiko Yokoyama
- Tsuruoka Metabolomics Laboratory, National Cancer Center, Yamagata, Japan
| | - Tohru Fujiwara
- Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Laboratory Diagnostics, Tohoku University Hospital, Sendai, Japan
| | - Susumu Goyama
- Division of Molecular Oncology, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, Japan
| | - Hideki Noguchi
- Center for Genome Informatics, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, National Institute of Genetics, Mishima, Japan
- Advanced Genomics Center, National Institute of Genetics, Mishima, Japan
| | - Stanley C Lee
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Atsushi Toyoda
- Advanced Genomics Center, National Institute of Genetics, Mishima, Japan
- Comparative Genomics Laboratory, National Institute of Genetics, Mishima, Japan
| | - Kunihiko Hinohara
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Institute for Advanced Study, Nagoya University, Nagoya, Japan
- Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Omar Abdel-Wahab
- Molecular Pharmacology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Daichi Inoue
- Department of Hematology-Oncology, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe, Hyogo, Japan.
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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Ishibashi K, Kitamura Y, Kato S, Sugano M, Sakaguchi Y, Sato Y, Isono S. Dynamic vocal cord behavior and stridor during emergence from general anesthesia in small children with supraglottic airway. J Anesth 2023; 37:672-680. [PMID: 37326855 DOI: 10.1007/s00540-023-03218-z] [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: 11/10/2022] [Accepted: 06/07/2023] [Indexed: 06/17/2023]
Abstract
PURPOSE Stridor during emergence from anesthesia is not rare in children managed with supraglottic airway (SGA). However, we know little about the mechanisms of stridor and behavior of the vocal cords (VC). This study aimed to clarify patterns of VC movement and laryngeal airway maintenance function during recovery from anesthesia in children with SGA. METHODS This is a secondary analysis of data collected from an observational study involving 27 anesthetized children. Using a multi-panel recording system, endoscopic VC image, vital sign monitor, multi-channel tracings of respiratory variables and respiratory sound and patient's view were simultaneously captured in one monitor. Inspiratory and expiratory VC angles formed by lines connecting anterior and posterior commissures were measured at the first spontaneous breath and the breath one minute after the first breath. VC narrowing and dilation were assessed by differences of VC angles. RESULTS Inspiratory VC narrowing (median (IQR): 5.3 (2.7, 9.1) degree at the first breath) and dilation (- 2.7 (- 3.8, - 1.7) degree at the first breath) were observed in 15 and 12 out of 27 children, respectively. The former group achieved greater tidal volume compared to the latter in one minute. Five children (19%) temporarily developed stridor-like sound from outside with inspiratory VC narrowing. The stridor-like sound was captured by microphones attached to the neck and anesthesia circuit, but was not evident from the chest. CONCLUSION Laryngeal narrowing occurs in half of the children with SGA during emergence from anesthesia, and temporal stridor-like sound is relatively common. CLINICAL TRIAL REGISTRATION UMIN (University Hospital Information Network) Clinical Registry: UMIN000025058 ( https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000028697 ).
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Affiliation(s)
- Katsuhiko Ishibashi
- Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
| | - Yuji Kitamura
- Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Department of Anesthesiology, Matsudo City General Hospital, Matsudo, Japan
| | - Shinichiro Kato
- Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Department of Anesthesiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Miri Sugano
- Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Department of Anesthesiology, Funabashi Central Hospital, Funabashi, Japan
| | - Yuichi Sakaguchi
- Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Department of Anesthesiology, Saitama prefectural Children's Medical Center, Saitama, Japan
| | - Yasunori Sato
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo, Japan
| | - Shiroh Isono
- Department of Anesthesiology, Graduate School of Medicine, Chiba University, Chiba, Japan
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4
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Kato S, Maeda Y, Sugiyama D, Watanabe K, Nishikawa H, Hinohara K. The cancer epigenome: Non-cell autonomous player in tumor immunity. Cancer Sci 2023; 114:730-740. [PMID: 36468774 PMCID: PMC9986067 DOI: 10.1111/cas.15681] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/28/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Dysregulation of the tumor-intrinsic epigenetic circuit is a key driver event for the development of cancer. Accumulating evidence suggests that epigenetic and/or genetic drivers stimulate intrinsic oncogenic pathways as well as extrinsic factors that modulate the immune system. These modulations indeed shape the tumor microenvironment (TME), allowing pro-oncogenic factors to become oncogenic, thereby contributing to cancer development and progression. Here we review the epigenetic dysregulation arising in cancer cells that disseminates throughout the TME and beyond. Recent CRISPR screening has elucidated key epigenetic drivers that play important roles in the proliferation of cancer cells (intrinsic) and inhibition of antitumor immunity (extrinsic), which lead to the development and progression of cancer. These epigenetic players can serve as promising targets for cancer therapy as a dual (two-in-one)-targeted approach. Considering the interplay between cancer and the immune system as a key determinant of immunotherapy, we discuss a novel lineage-tracing technology that enables longitudinal monitoring of cancer and immune phenotypic heterogeneity and fate paths during cancer development, progression, and therapeutic interventions.
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Affiliation(s)
- Shinichiro Kato
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuka Maeda
- Division of Cancer Immunology, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Research Institute, Tokyo, Japan
| | - Daisuke Sugiyama
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keisuke Watanabe
- Division of Cancer Immunology, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Research Institute, Tokyo, Japan
| | - Hiroyoshi Nishikawa
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Division of Cancer Immunology, Exploratory Oncology Research & Clinical Trial Center, National Cancer Center, Research Institute, Tokyo, Japan.,Institute for Advanced Study, Nagoya University, Nagoya, Japan
| | - Kunihiko Hinohara
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Institute for Advanced Study, Nagoya University, Nagoya, Japan
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5
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Kato S, Ijichi K, Fukushima A, Nakamura T, Takashima H, Nabeta T, Miyamoto H, Ishibashi K, Tsuchiya S, Hishida S, Shibuya Y. Two cases of parapharyngeal space tumor resected by a double split mandibular osteotomy technique. Clin Case Rep 2022; 10:e6786. [PMID: 36583200 PMCID: PMC9792645 DOI: 10.1002/ccr3.6786] [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: 10/15/2022] [Accepted: 12/08/2022] [Indexed: 12/28/2022] Open
Abstract
Parapharyngeal space tumors have poor subjective symptoms and often grow until diagnosed; therefore, mandibular transection may be needed to obtain a wider field of view during surgery. However, if a median lower lip incision is performed for the mandibular transection, esthetic problems occur after surgery. Here, we report two cases of parapharyngeal space tumors that were removed with a mandibular lateral segment-osteotomy technique without median lower lip incision to avoid esthetic problems. Case 1 was a 49-year-old woman. She was aware of a right tonsillar swelling, and an imaging test revealed a tumor lesion 60 mm in size in the right parapharyngeal space. Case 2 was a 40-year-old woman with an abnormal position of the uvula, and an imaging test showed the left parapharyngeal space tumor lesion 45 mm in size. Both cases were diagnosed as a pleomorphic adenoma, and surgery under general anesthesia was performed jointly with otolaryngology and oral surgery. The incision was performed from the lower part of the right auricle to the anterior part of the submandibular area. After the tumor resection, the mandible was repositioned, fixed by plates, and the intermaxillary fixation was performed with a surgical stent. In both cases, slight paralysis of the mandibular branch of the facial nerve and the mental nerve was observed after the operation, but they were improved immediately. One year after the operation, the plates were removed. There have been no recurrences until now.
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Affiliation(s)
- Shinichiro Kato
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | | | | | - Tomohisa Nakamura
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Hiroyuki Takashima
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Tsuyoshi Nabeta
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Hironori Miyamoto
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Kenichiro Ishibashi
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Shuhei Tsuchiya
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Sumiyo Hishida
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Yasuyuki Shibuya
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
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Takashima H, Tagami T, Kato S, Pae H, Ozeki T, Shibuya Y. Three-Dimensional Printing of an Apigenin-Loaded Mucoadhesive Film for Tailored Therapy to Oral Leukoplakia and the Chemopreventive Effect on a Rat Model of Oral Carcinogenesis. Pharmaceutics 2022; 14:pharmaceutics14081575. [PMID: 36015201 PMCID: PMC9415331 DOI: 10.3390/pharmaceutics14081575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
Oral leukoplakia, which presents as white lesions in the oral cavity, including on the tongue, is precancerous in nature. Conservative treatment is preferable, since surgical removal can markedly reduce the patient’s quality of life. In the present study, we focused on the flavonoid apigenin as a potential compound for preventing carcinogenesis, and an apigenin-loaded mucoadhesive oral film was prepared using a three-dimensional (3D) bioprinter (semi-solid extrusion-type 3D printer). Apigenin-loaded printer inks are composed of pharmaceutical excipients (HPMC, CARBOPOL, and Poloxamer), water, and ethanol to dissolve apigenin, and the appropriate viscosity of printer ink after adjusting the ratios allowed for the successful 3D printing of the film. After drying the 3D-printed object, the resulting film was characterized. The chemopreventive effect of the apigenin-loaded film was evaluated using an experimental rat model that had been exposed to 4-nitroquinoline 1-oxide (4NQO) to induce oral carcinogenesis. Treatment with the apigenin-loaded film showed a remarkable chemopreventive effect based on an analysis of the specimen by immunohistostaining. These results suggest that the apigenin-loaded mucoadhesive film may help prevent carcinogenesis. This successful preparation of apigenin-loaded films by a 3D printer provides useful information for automatically fabricating other tailored films (with individual doses and shapes) for patients with oral leukoplakia in a future clinical setting.
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Affiliation(s)
- Hiroyuki Takashima
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical Sciences, Nagoya City University, 1, Kawasumi, Mizuho-ku, Nagoya 467-0001, Japan; (H.T.); (S.K.)
| | - Tatsuaki Tagami
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan; (T.T.); (H.P.); (T.O.)
| | - Shinichiro Kato
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical Sciences, Nagoya City University, 1, Kawasumi, Mizuho-ku, Nagoya 467-0001, Japan; (H.T.); (S.K.)
| | - Heeju Pae
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan; (T.T.); (H.P.); (T.O.)
| | - Tetsuya Ozeki
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1, Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan; (T.T.); (H.P.); (T.O.)
| | - Yasuyuki Shibuya
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical Sciences, Nagoya City University, 1, Kawasumi, Mizuho-ku, Nagoya 467-0001, Japan; (H.T.); (S.K.)
- Correspondence: ; Tel.: +81-52-858-7302
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Casado J, Mori S, Moles Quintero S, Tabaka N, Kishi R, González Núñez R, Harbuzaru A, Ponce R, Marin Beloqui J, Suzuki S, kitamura C, Gómez C, Dai Y, Negri F, Nakano M, Kato SI. Medium Diradical Character, Small Hole and Electron Reorganization Energies and Ambipolar Transistors in Difluorenoheteroles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Juan Casado
- University of Málaga Dept. of Physical Chemistry Campus de Teatinos s/n 29071 Málaga SPAIN
| | - Sakura Mori
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
| | | | - Naoki Tabaka
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
| | - Ryohei Kishi
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka Department of Materials Engineering Science JAPAN
| | | | | | - Rocio Ponce
- University of Malaga: Universidad de Malaga Physical Chemistry SPAIN
| | | | - Shuichi Suzuki
- Osaka University School of Science Graduate School of Science: Osaka Daigaku Daigakuin Rigaku Kenkyuka Rigakubu Department of Chemistry JAPAN
| | - Chitoshi kitamura
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
| | - Carlos Gómez
- University of Valencia: Universitat de Valencia Inorganic Chemistry SPAIN
| | - Yasi Dai
- Università di Bologna - Università di Bologna: Universita degli Studi di Bologna - Campus di Forli Dipartimento di Chimica ‘Giacomo Ciamician’ ITALY
| | - Fabrizia Negri
- Università di Bologna: Universita di Bologna Dipartimento di Chimica ‘Giacomo Ciamician’ ITALY
| | - Masayoshi Nakano
- Osaka University School of Engineering Graduate School of Engineering: Osaka Daigaku Kogakubu Daigakuin Kogaku Kenkyuka Department of Materials Engineering Science JAPAN
| | - Shin-ichiro Kato
- The University of Shiga Prefecture: Shiga Kenritsu Daigaku Department of Chemistry & Biochemistry and Materials Science Institute JAPAN
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Yokoyama S, Takahashi A, Kikuchi R, Nishibu S, Lo JA, Hejna M, Moon WM, Kato S, Zhou Y, Hodi FS, Song JS, Sakurai H, Fisher DE, Hayakawa Y. SOX10 regulates melanoma immunogenicity through an IRF4-IRF1 axis. Cancer Res 2021; 81:6131-6141. [PMID: 34728538 DOI: 10.1158/0008-5472.can-21-2078] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/15/2021] [Accepted: 10/28/2021] [Indexed: 11/16/2022]
Abstract
Loss-of-function mutations of JAK1/2 impair cancer cell responsiveness to IFN-γ and immunogenicity. Therefore, an understanding of compensatory pathways to activate IFN-γ signaling in cancer cells is clinically important for the success of immunotherapy. Here we demonstrate that the transcription factor SOX10 hinders immunogenicity of melanoma cells through the IRF4-IRF1 axis. Genetic and pharmacological approaches revealed that SOX10 repressed IRF1 transcription via direct induction of a negative regulator, IRF4. The SOX10-IRF4-IRF1 axis regulated PD-L1 expression independently of JAK-STAT pathway activity, and suppression of SOX10 increased the efficacy of combination therapy with an anti-PD-1 antibody and HDAC inhibitor against a clinically relevant melanoma model. Thus, the SOX10-IRF4-IRF1 axis serves as a potential target that can bypass JAK-STAT signaling to immunologically warm up melanoma with a "cold" tumor immune microenvironment.
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Affiliation(s)
- Satoru Yokoyama
- Department of Cancer Cell Biology, Faculty of Pharmaceutical Sciences, University of Toyama
| | - Atsushi Takahashi
- Department of Cancer Cell Biology, Faculty of Pharmaceutical Sciences, University of Toyama
| | - Ryota Kikuchi
- Department of Cancer Cell Biology, Faculty of Pharmaceutical Sciences, University of Toyama
| | - Soshi Nishibu
- Department of Cancer Cell Biology, Faculty of Pharmaceutical Sciences, University of Toyama
| | | | | | | | - Shinichiro Kato
- Dermatology and Medical Oncology, Massachusetts General Hospital
| | - Yue Zhou
- Department of Cancer Cell Biology, Faculty of Pharmaceutical Sciences, University of Toyama
| | | | - Jun S Song
- Physics, University of Illinois at Urbana-Champaign
| | - Hiroaki Sakurai
- Department of Cancer Cell Biology, Faculty of Pharmaceutical Sciences, University of Toyama
| | - David E Fisher
- Dermatology and Medical Oncology, Massachusetts General Hospital
| | - Yoshihiro Hayakawa
- Section of Host Defences, Institute of Natural Medicine, University of Toyama
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9
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Matsui H, Uchiyama J, Ogata M, Nasukawa T, Takemura-Uchiyama I, Kato SI, Murakami H, Higashide M, Hanaki H. Use of Recombinant Endolysin to Improve Accuracy of Group B Streptococcus Tests. Microbiol Spectr 2021; 9:e0007721. [PMID: 34378963 PMCID: PMC8552716 DOI: 10.1128/spectrum.00077-21] [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: 04/21/2021] [Accepted: 07/09/2021] [Indexed: 12/17/2022] Open
Abstract
Group B Streptococcus (GBS) causes serious neonatal infection via vertical transmission. The prenatal GBS screening test is performed at the late stage of pregnancy to avoid risks of infection. In this test, enrichment culture is performed, followed by GBS identification. Selective medium is used for the enrichment; however, Enterococcus faecalis, which is a potential contaminant in swab samples, can interfere with the growth of GBS. Such bacterial contamination can lead to false-negative results. Endolysin, a bacteriophage-derived enzyme, degrades peptidoglycan in the bacterial cell wall; it is a promising antimicrobial agent for selectively eliminating specific bacterial genera/species. In this study, we used the recombinant endolysin EG-LYS, which is specific to E. faecalis; the endolysin potentially enriched GBS in the selective culture. First, in the false-negative model (coculture of GBS and E. faecalis, which disabled GBS detection in the subsequent GBS identification test), EG-LYS treatment at 0.1 mg/ml improved GBS detection. Next, we used 548 vaginal swabs to test the efficacy of EG-LYS treatment in improving GBS detection. EG-LYS treatment (0.1 mg/ml) increased the GBS-positive ratio to 17.9%, compared to 15.7% in the control (phosphate-buffered saline [PBS] treatment). In addition, there were an increased number of GBS colonies under EG-LYS treatment in some samples. The results were supported by the microbiota analysis of the enriched cultures. In conclusion, EG-LYS treatment of the enrichment culture potentially improves the accuracy of the prenatal GBS screening test. IMPORTANCE Endolysin is a bacteriophage-derived enzyme that degrades the peptidoglycan in the cell wall of host bacteria; it could be used as an antimicrobial agent for selectively eliminating specific bacterial genera/species. Group B Streptococcus (GBS) causes neonatal infection via vertical transmission; prenatal GBS screening test, in which enrichment culture is followed by bacterial identification, is used to detect the presence of GBS in pregnant women. However, the presence of commensal bacteria such as Enterococcus faecalis in clinical specimens can inhibit GBS growth in the selective enrichment culture, resulting in false-negative result. Here, we demonstrated that the application of originally isolated endolysin in the enrichment culture improved the test accuracy by inhibiting unwanted E. faecalis growth and therefore avoiding false-negative results, not only in experimental settings, but also in tests using vaginal swabs.
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Affiliation(s)
- Hidehito Matsui
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
| | - Jumpei Uchiyama
- Department of Bacteriology, Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
- School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Masaya Ogata
- School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | - Tadahiro Nasukawa
- School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | | | | | - Hironobu Murakami
- School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
| | | | - Hideaki Hanaki
- Ōmura Satoshi Memorial Institute, Kitasato University, Tokyo, Japan
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10
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Takashima H, Sato (Boku) A, Miyamoro H, Kato S, Furuno S, Shibuya Y. Perioperative management of von Willebrand patients at the time of implant placement: Case report. Clin Case Rep 2021; 9:e04755. [PMID: 34484779 PMCID: PMC8405533 DOI: 10.1002/ccr3.4755] [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: 06/07/2021] [Revised: 08/09/2021] [Accepted: 08/15/2021] [Indexed: 12/03/2022] Open
Abstract
In the management of patients with type 1 von Willebrand disease, supplementation with Con Facto F® as well as hemodynamic stabilization with appropriate analgesia and sedation may be important to reduce the risk of bleeding.
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Affiliation(s)
- Hiroyuki Takashima
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Aiji Sato (Boku)
- Department of AnesthesiologyAichi Gakuin University School of DentistryNagoyaJapan
| | - Hironori Miyamoro
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Shinichiro Kato
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Shota Furuno
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Yasuyuki Shibuya
- Department of Oral and Maxillofacial SurgeryNagoya City University Graduate School of Medical SciencesNagoyaJapan
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11
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Allouche J, Rachmin I, Adhikari K, Pardo LM, Lee JH, McConnell AM, Kato S, Fan S, Kawakami A, Suita Y, Wakamatsu K, Igras V, Zhang J, Navarro PP, Lugo CM, Noonan HR, Christie KA, Itin K, Mujahid N, Lo JA, Won CH, Evans CL, Weng QY, Wang H, Osseiran S, Lovas A, Németh I, Cozzio A, Navarini AA, Hsiao JJ, Nguyen N, Kemény LV, Iliopoulos O, Berking C, Ruzicka T, Gonzalez-José R, Bortolini MC, Canizales-Quinteros S, Acuna-Alonso V, Gallo C, Poletti G, Bedoya G, Rothhammer F, Ito S, Schiaffino MV, Chao LH, Kleinstiver BP, Tishkoff S, Zon LI, Nijsten T, Ruiz-Linares A, Fisher DE, Roider E. NNT mediates redox-dependent pigmentation via a UVB- and MITF-independent mechanism. Cell 2021; 184:4268-4283.e20. [PMID: 34233163 PMCID: PMC8349839 DOI: 10.1016/j.cell.2021.06.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 03/09/2021] [Accepted: 06/15/2021] [Indexed: 12/26/2022]
Abstract
Ultraviolet (UV) light and incompletely understood genetic and epigenetic variations determine skin color. Here we describe an UV- and microphthalmia-associated transcription factor (MITF)-independent mechanism of skin pigmentation. Targeting the mitochondrial redox-regulating enzyme nicotinamide nucleotide transhydrogenase (NNT) resulted in cellular redox changes that affect tyrosinase degradation. These changes regulate melanosome maturation and, consequently, eumelanin levels and pigmentation. Topical application of small-molecule inhibitors yielded skin darkening in human skin, and mice with decreased NNT function displayed increased pigmentation. Additionally, genetic modification of NNT in zebrafish alters melanocytic pigmentation. Analysis of four diverse human cohorts revealed significant associations of skin color, tanning, and sun protection use with various single-nucleotide polymorphisms within NNT. NNT levels were independent of UVB irradiation and redox modulation. Individuals with postinflammatory hyperpigmentation or lentigines displayed decreased skin NNT levels, suggesting an NNT-driven, redox-dependent pigmentation mechanism that can be targeted with NNT-modifying topical drugs for medical and cosmetic purposes.
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Affiliation(s)
- Jennifer Allouche
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Inbal Rachmin
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Kaustubh Adhikari
- School of Mathematics and Statistics, The Open University, Milton Keynes, MK7 6AA, UK; Department of Genetics, Evolution and Environment and UCL Genetics Institute, University College London, London WC1E 6BT, UK
| | - Luba M Pardo
- Department of Dermatology, Erasmus Medical Center, 3015 Rotterdam, the Netherlands
| | - Ju Hee Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, 03722 Seoul, Korea
| | - Alicia M McConnell
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and the Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Shinichiro Kato
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA; Department of Immunology, Center for 5D Cell Dynamics, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Shaohua Fan
- State Key Laboratory of Genetic Engineering, Human Phenome Institute, School of Life Sciences, Fudan University, 200438 Shanghai, China
| | - Akinori Kawakami
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Yusuke Suita
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Kazumasa Wakamatsu
- Institute for Melanin Chemistry, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - Vivien Igras
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Jianming Zhang
- National Research Center for Translational Medicine (Shanghai), State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025 Shanghai, China
| | - Paula P Navarro
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Camila Makhlouta Lugo
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Haley R Noonan
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and the Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Kathleen A Christie
- Center for Genomic Medicine and Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Pathology, Harvard Medical School, Boston, MA 02115, USA
| | - Kaspar Itin
- Department of Dermatology, University Hospital of Basel, 4031 Basel, Switzerland
| | - Nisma Mujahid
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA; Boston University School of Medicine, Boston, MA 02118, USA; University of Utah, Department of Dermatology, Salt Lake City, UT 84132, USA
| | - Jennifer A Lo
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Chong Hyun Won
- Department of Dermatology, Asan Medical Center, Ulsan University College of Medicine, 05505 Seoul, Korea
| | - Conor L Evans
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Qing Yu Weng
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Hequn Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Sam Osseiran
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Alyssa Lovas
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - István Németh
- Department of Dermatology and Allergology, University of Szeged, 6720 Szeged, Hungary
| | - Antonio Cozzio
- Department of Dermatology, Venerology, and Allergology, Kantonsspital St. Gallen, 9007 St. Gallen, Switzerland
| | - Alexander A Navarini
- Department of Dermatology, University Hospital of Basel, 4031 Basel, Switzerland
| | - Jennifer J Hsiao
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Nhu Nguyen
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
| | - Lajos V Kemény
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA; Department of Dermatology, Venereology, and Dermatooncology, Semmelweis University, 1085 Budapest, Hungary
| | - Othon Iliopoulos
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA 02114, USA
| | - Carola Berking
- Department of Dermatology, Universitätsklinikum Erlangen, Friedrich Alexander University Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - Thomas Ruzicka
- Department of Dermatology and Allergy, University Hospital Munich, Ludwig Maximilian University, 80337 Munich, Germany
| | - Rolando Gonzalez-José
- Instituto Patagónico de Ciencias Sociales y Humanas-Centro Nacional Patagónico, CONICET, Puerto Madryn U912OACD, Argentina
| | - Maria-Cátira Bortolini
- Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
| | - Samuel Canizales-Quinteros
- Unidad de Genómica de Poblaciones Aplicada a la Salud, Facultad de Química, Universidad Nacional Autónoma de México e Instituto Nacional de Medicina Genómica, Mexico City 04510, Mexico
| | | | - Carla Gallo
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima 15102, Peru
| | - Giovanni Poletti
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima 15102, Peru
| | - Gabriel Bedoya
- Genética Molecular (GENMOL), Universidad de Antioquia, Medellín 5001000, Colombia
| | - Francisco Rothhammer
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000009, Chile; Programa de Genetica Humana, ICBM, Facultad de Medicina, Universidad de Chile, Santiago 1027, Chile
| | - Shosuke Ito
- Institute for Melanin Chemistry, Fujita Health University, Toyoake, Aichi 470-1192, Japan
| | - Maria Vittoria Schiaffino
- Internal Medicine, Diabetes and Endocrinology Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Luke H Chao
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
| | - Benjamin P Kleinstiver
- Center for Genomic Medicine and Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Pathology, Harvard Medical School, Boston, MA 02115, USA
| | - Sarah Tishkoff
- Departments of Genetics and Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Leonard I Zon
- Stem Cell Program and Division of Hematology/Oncology, Boston Children's Hospital and the Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Tamar Nijsten
- Department of Dermatology, Erasmus Medical Center, 3015 Rotterdam, the Netherlands
| | - Andrés Ruiz-Linares
- Ministry of Education Key Laboratory of Contemporary Anthropology and Collaborative Innovation Center of Genetics and Development, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai 200433, China; UMR 7268, CNRS-EFS-ADES, Aix-Marseille University, Marseille 13005, France
| | - David E Fisher
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA; Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA 02114, USA.
| | - Elisabeth Roider
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA; Department of Dermatology, University Hospital of Basel, 4031 Basel, Switzerland; Department of Dermatology and Allergology, University of Szeged, 6720 Szeged, Hungary.
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12
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Kemény LV, Robinson KC, Hermann AL, Walker DM, Regan S, Yew YW, Lai YC, Theodosakis N, Rivera PD, Ding W, Yang L, Beyer T, Loh YHE, Lo JA, van der Sande AAJ, Sarnie W, Kotler D, Hsiao JJ, Su MY, Kato S, Kotler J, Bilbo SD, Chopra V, Salomon MP, Shen S, Hoon DSB, Asgari MM, Wakeman SE, Nestler EJ, Fisher DE. Vitamin D deficiency exacerbates UV/endorphin and opioid addiction. Sci Adv 2021; 7:7/24/eabe4577. [PMID: 34117054 PMCID: PMC8195487 DOI: 10.1126/sciadv.abe4577] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
The current opioid epidemic warrants a better understanding of genetic and environmental factors that contribute to opioid addiction. Here we report an increased prevalence of vitamin D (VitD) deficiency in patients diagnosed with opioid use disorder and an inverse and dose-dependent association of VitD levels with self-reported opioid use. We used multiple pharmacologic approaches and genetic mouse models and found that deficiencies in VitD signaling amplify exogenous opioid responses that are normalized upon restoration of VitD signaling. Similarly, physiologic endogenous opioid analgesia and reward responses triggered by ultraviolet (UV) radiation are repressed by VitD signaling, suggesting that a feedback loop exists whereby VitD deficiency produces increased UV/endorphin-seeking behavior until VitD levels are restored by cutaneous VitD synthesis. This feedback may carry the evolutionary advantage of maximizing VitD synthesis. However, unlike UV exposure, exogenous opioid use is not followed by VitD synthesis (and its opioid suppressive effects), contributing to maladaptive addictive behavior.
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Affiliation(s)
- Lajos V Kemény
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Kathleen C Robinson
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrea L Hermann
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Deena M Walker
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Susan Regan
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Yi Chun Lai
- Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Nicholas Theodosakis
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Phillip D Rivera
- Program in Neuroscience, Harvard Medical School, Boston, MA, USA
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Boston, MA, USA
- Department of Biology, Hope College, Holland, MI, USA
| | - Weihua Ding
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Liuyue Yang
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Tobias Beyer
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Yong-Hwee E Loh
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- USC Libraries Bioinformatics Services, University of Southern California, Los Angeles, CA, USA
| | - Jennifer A Lo
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Anita A J van der Sande
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - William Sarnie
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - David Kotler
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jennifer J Hsiao
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Mack Y Su
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Shinichiro Kato
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Joseph Kotler
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Staci D Bilbo
- Program in Neuroscience, Harvard Medical School, Boston, MA, USA
- Department of Pediatrics, Lurie Center for Autism, Massachusetts General Hospital for Children, Boston, MA, USA
| | - Vanita Chopra
- Department of Neurology, Harvard Medical School, Massachusetts General Hospital, Charlestown, MA, USA
| | - Matthew P Salomon
- Department of Translational Molecular Medicine, Division of Molecular Oncology, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Shiqian Shen
- MGH Center for Translational Pain Research, Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Dave S B Hoon
- Department of Translational Molecular Medicine, Division of Molecular Oncology, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Maryam M Asgari
- Department of Dermatology, Massachusetts General Hospital and Department of Population Medicine, Harvard Medical School, Boston, MA, USA
| | - Sarah E Wakeman
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Eric J Nestler
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - David E Fisher
- Cutaneous Biology Research Center, Department of Dermatology and Cancer Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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13
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Saito I, Hasegawa T, Kawashita Y, Kato S, Yamada SI, Kojima Y, Ueda N, Umeda M, Shibuya Y, Kurita H, Kirita T, Akashi M. Association between dental extraction after radiotherapy and osteoradionecrosis: A multi-centre retrospective study. Oral Dis 2021; 28:1181-1187. [PMID: 33650256 DOI: 10.1111/odi.13826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/12/2021] [Accepted: 02/16/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Radiotherapy (RT) carries a substantial risk for the development of osteoradionecrosis (ORN) of the jaw. This study was performed to investigate the relationship between dental extractions after RT and the development of ORN. MATERIAL AND METHODS Thirty-two patients with head and neck cancer who underwent tooth extraction after RT were investigated for correlations between the development of ORN and various factors. RESULTS Postextraction ORN was diagnosed in 12 (12.1%) teeth of 9 patients. The RT dose against the site of tooth extraction was 62.0 and 37.4 Gy in the ORN and Non-ORN groups, respectively (p < .001). The duration from RT to tooth extraction was 41.2 and 28.2 months in the ORN and Non-ORN groups, respectively (p = .025). Tooth extraction was significantly associated with ORN in patients with a high RT dose against the site (odds ratio = 1.231) and a longer duration of time from RT (odds ratio = 1.084). CONCLUSIONS Extraction of non-restorable teeth and those with a poor prognosis should not necessarily be postponed even when patients are undergoing RT. However, clinicians should pay special attention to postoperative management after tooth extraction in patients with a high RT dose and longer time from RT.
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Affiliation(s)
- Izumi Saito
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takumi Hasegawa
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yumiko Kawashita
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Shinichiro Kato
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shin-Ichi Yamada
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yuka Kojima
- Department of Dentistry and Oral Surgery, Kansai Medical University, Hirakata, Japan
| | - Nobuhiro Ueda
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - Masahiro Umeda
- Department of Clinical Oral Oncology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Yasuyuki Shibuya
- Department of Oral and Maxillofacial Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroshi Kurita
- Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Tadaaki Kirita
- Department of Oral and Maxillofacial Surgery, Nara Medical University, Kashihara, Japan
| | - Masaya Akashi
- Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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14
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Sato (Boku) A, Kako E, Okuni N, Kusama N, Kamimura Y, Sento Y, So M, Tanaka M, Miyamoto H, Kato S, Kobayashi M, Shibuya Y, Sobue K. Perioperative management of thyroglossal duct cystectomy in a pediatric patient: A case report. Clin Case Rep 2021; 9:673-676. [PMID: 33598223 PMCID: PMC7869400 DOI: 10.1002/ccr3.3607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 10/17/2020] [Accepted: 11/10/2020] [Indexed: 11/13/2022] Open
Abstract
Thyroglossal duct on the dorsum of the tongue in the pediatric patient can cause a difficult airway due to the large mass and risk of airway obstruction associated with a swollen tongue after surgery.
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Affiliation(s)
- Aiji Sato (Boku)
- Department of AnesthesiologyAichi Gakuin University School of DentistryNagoyaJapan
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Eisuke Kako
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Nozomi Okuni
- Department of AnesthesiologyAichi Gakuin University School of DentistryNagoyaJapan
| | - Nobuyoshi Kusama
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Yuji Kamimura
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Yoshiki Sento
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - MinHye So
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Motoshi Tanaka
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
| | - Hironori Miyamoto
- Department of Oral and Maxillofacial SurgeryNagoya City University School of Medical SciencesNagoyaJapan
| | - Shinichiro Kato
- Department of Oral and Maxillofacial SurgeryNagoya City University School of Medical SciencesNagoyaJapan
| | - Masaki Kobayashi
- Department of Oral and Maxillofacial SurgeryNagoya City University School of Medical SciencesNagoyaJapan
| | - Yasuyuki Shibuya
- Department of Oral and Maxillofacial SurgeryNagoya City University School of Medical SciencesNagoyaJapan
| | - Kazuya Sobue
- Department of Anesthesiology and Intensive Care MedicineNagoya City University Graduate School of Medical SciencesNagoyaJapan
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15
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Muramatsu H, Maguchi H, Harada T, Kashiwagi T, Kim CS, Kato SI, Nagata S. Identification of the gene encoding 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid desulfhydrase in Burkholderia sp. HME13. Biosci Biotechnol Biochem 2020; 85:626-629. [DOI: 10.1093/bbb/zbaa066] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/27/2020] [Indexed: 11/12/2022]
Abstract
ABSTRACT
Here, we report the identification of the gene encoding a novel enzyme, 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid desulfhydrase, in Burkholderia sp. HME13. The enzyme converts 3-(5-oxo-2-thioxoimidazolidin-4-yl) propionic acid and H2O to 3-(2,5-dioxoimidazolidin-4-yl) propionic acid and H2S. Amino acid sequence analysis of the enzyme indicates that it belongs to the DUF917 protein family, which consists of proteins of unknown function.
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Affiliation(s)
- Hisashi Muramatsu
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Hiroki Maguchi
- Department of Agriculture, Kochi University, Kochi, Japan
| | - Taisuke Harada
- Department of Agriculture, Kochi University, Kochi, Japan
| | - Takehiro Kashiwagi
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Chul-Sa Kim
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Shin-ichiro Kato
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
| | - Shinji Nagata
- Multidisciplinary Science Cluster, Research and Education Faculty, Kochi University, Kochi, Japan
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16
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Kato S, Weng QY, Insco ML, Chen KY, Muralidhar S, Pozniak J, Diaz JMS, Drier Y, Nguyen N, Lo JA, van Rooijen E, Kemeny LV, Zhan Y, Feng Y, Silkworth W, Powell CT, Liau BB, Xiong Y, Jin J, Newton-Bishop J, Zon LI, Bernstein BE, Fisher DE. Gain-of-Function Genetic Alterations of G9a Drive Oncogenesis. Cancer Discov 2020; 10:980-997. [PMID: 32269030 PMCID: PMC7334057 DOI: 10.1158/2159-8290.cd-19-0532] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 02/05/2020] [Accepted: 04/03/2020] [Indexed: 11/16/2022]
Abstract
Epigenetic regulators, when genomically altered, may become driver oncogenes that mediate otherwise unexplained pro-oncogenic changes lacking a clear genetic stimulus, such as activation of the WNT/β-catenin pathway in melanoma. This study identifies previously unrecognized recurrent activating mutations in the G9a histone methyltransferase gene, as well as G9a genomic copy gains in approximately 26% of human melanomas, which collectively drive tumor growth and an immunologically sterile microenvironment beyond melanoma. Furthermore, the WNT pathway is identified as a key tumorigenic target of G9a gain-of-function, via suppression of the WNT antagonist DKK1. Importantly, genetic or pharmacologic suppression of mutated or amplified G9a using multiple in vitro and in vivo models demonstrates that G9a is a druggable target for therapeutic intervention in melanoma and other cancers harboring G9a genomic aberrations. SIGNIFICANCE: Oncogenic G9a abnormalities drive tumorigenesis and the "cold" immune microenvironment by activating WNT signaling through DKK1 repression. These results reveal a key druggable mechanism for tumor development and identify strategies to restore "hot" tumor immune microenvironments.This article is highlighted in the In This Issue feature, p. 890.
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Affiliation(s)
- Shinichiro Kato
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Qing Yu Weng
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Megan L Insco
- Howard Hughes Medical Institute, Chevy Chase, Maryland
- Stem Cell Program and Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
- Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Cambridge, Massachusetts
| | - Kevin Y Chen
- Howard Hughes Medical Institute, Chevy Chase, Maryland
- Stem Cell Program and Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
- Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Cambridge, Massachusetts
| | - Sathya Muralidhar
- Institute of Medical Research at St James's, University of Leeds, Leeds, United Kingdom
| | - Joanna Pozniak
- Institute of Medical Research at St James's, University of Leeds, Leeds, United Kingdom
| | - Joey Mark S Diaz
- Institute of Medical Research at St James's, University of Leeds, Leeds, United Kingdom
| | - Yotam Drier
- Center for Cancer Research, Massachusetts General Hospital, Boston, Massachusetts
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Nhu Nguyen
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Jennifer A Lo
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Ellen van Rooijen
- Howard Hughes Medical Institute, Chevy Chase, Maryland
- Stem Cell Program and Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Lajos V Kemeny
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Yao Zhan
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Yang Feng
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Whitney Silkworth
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - C Thomas Powell
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Brian B Liau
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts
| | - Yan Xiong
- Mount Sinai Center for Therapeutics Discovery, Department of Pharmaceutical Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Jian Jin
- Mount Sinai Center for Therapeutics Discovery, Department of Pharmaceutical Sciences and Oncological Sciences, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Julia Newton-Bishop
- Institute of Medical Research at St James's, University of Leeds, Leeds, United Kingdom
| | - Leonard I Zon
- Howard Hughes Medical Institute, Chevy Chase, Maryland
- Stem Cell Program and Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Bradley E Bernstein
- Center for Cancer Research, Massachusetts General Hospital, Boston, Massachusetts
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - David E Fisher
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts.
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17
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Mori S, Akita M, Suzuki S, Asano MS, Murata M, Akiyama T, Matsumoto T, Kitamura C, Kato SI. Open-shell singlet diradicaloid difluoreno[4,3-b:3′,4′-d]furan and its radical cation and dianion. Chem Commun (Camb) 2020; 56:5881-5884. [DOI: 10.1039/d0cc01638a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We report difluoreno[4,3-b:3′,4′-d]furan derivative as a stable open-shell singlet diradicaloid.
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Affiliation(s)
- Sakura Mori
- Department of Materials Science
- School of Engineering
- The University of Shiga Prefecture
- Shiga 522-8533
- Japan
| | - Motoko Akita
- Graduate School of Material Science
- Josai University
- Saitama 350-0295
- Japan
| | - Shuichi Suzuki
- Department of Chemistry
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Motoko S. Asano
- Division of Molecular Science
- Faculty of Science and Technology
- Gunma University
- Kiryu
- Japan
| | - Michihisa Murata
- Department of Applied Chemistry
- Faculty of Engineering
- Osaka Institute of Technology
- Asahi-ku
- Japan
| | - Tsuyoshi Akiyama
- Department of Materials Science
- School of Engineering
- The University of Shiga Prefecture
- Shiga 522-8533
- Japan
| | - Taisuke Matsumoto
- Institute for Materials Chemistry and Engineering (IMCE)
- Kyushu University
- Kasuga 816-8580
- Japan
| | - Chitoshi Kitamura
- Department of Materials Science
- School of Engineering
- The University of Shiga Prefecture
- Shiga 522-8533
- Japan
| | - Shin-ichiro Kato
- Department of Materials Science
- School of Engineering
- The University of Shiga Prefecture
- Shiga 522-8533
- Japan
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18
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Kato SI, Matsuoka T, Suzuki S, Asano MS, Yoshihara T, Tobita S, Matsumoto T, Kitamura C. Synthesis, Structures, and Properties of Neutral and Radical Cationic S,C,C-Bridged Triphenylamines. Org Lett 2019; 22:734-738. [DOI: 10.1021/acs.orglett.9b04575] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shin-ichiro Kato
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Takanori Matsuoka
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Shuichi Suzuki
- Department of Chemistry, Graduate School of Engineering Science, 1-3, Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Motoko S. Asano
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Toshitada Yoshihara
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Seiji Tobita
- Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Taisuke Matsumoto
- Institute for Materials Chemistry and Engineering (IMCE), Kyushu University, 6-1, Kasuga-koh-en, Kasuga, Fukuoka 816-8580, Japan
| | - Chitoshi Kitamura
- Department of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
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19
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Kohno A, Kitamura Y, Kato S, Imai H, Masuda Y, Sato Y, Isono S. Displacement of the hyoid bone by muscle paralysis and lung volume increase: the effects of obesity and obstructive sleep apnea. Sleep 2019; 42:5146165. [PMID: 30371885 PMCID: PMC6335873 DOI: 10.1093/sleep/zsy198] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Indexed: 12/11/2022] Open
Abstract
Study Objectives Animal studies suggest a pivotal role of the hyoid bone in obstructive sleep apnea (OSA). We aimed to explore the role of the hyoid bone in humans by testing the hypotheses that muscle paralysis and lung volume (LV) changes displace the hyoid bone position particularly in people with obesity and/or OSA. Methods Fifty patients undergoing general anesthesia participated in this study (20 participants with nonobese, non-OSA; 8 people with nonobese OSA; and 22 people with obese OSA). Three lateral neck radiographs to assess the hyoid position (primary variable) and craniofacial structures were taken during wakefulness, complete muscle paralysis under general anesthesia, and LV increase under general anesthesia. LV was increased by negative extrathoracic pressure application and LV changes were measured with a spirometer. Analysis of covariance was used to identify statistical significance. Results Muscle paralysis under general anesthesia significantly displaced the hyoid bone posteriorly (95% CI: 1.7 to 4.6, 1.5 to 5.2, and 1.1 to 4.0 mm in nonobese non-OSA, nonobese OSA, and obese OSA groups, respectively), and this was more prominent in people with central obesity. LV increase significantly displaced the hyoid bone caudally in all groups (95% CI: 0.2 to 0.7, 0.02 to 0.6, and 0.2 to 0.6 mm/0.1 liter LV increase in nonobese non-OSA, nonobese OSA, and obese OSA groups, respectively). Waist–hip ratio was directly associated with the caudal displacement during LV increase. Conclusions The hyoid bone plays an important role in the pathophysiology of pharyngeal airway obstruction due to muscle paralysis and LV reduction, particularly in people with obesity. Clinical Trial UMIN Clinical Trial Registry, https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr_view.cgi?recptno=cR000022635&language=E, UMIN000019578
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Affiliation(s)
- Akane Kohno
- Department of Anesthesiology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yuji Kitamura
- Department of Anesthesiology, Chiba University Hospital, Chiba University, Chiba, Japan
| | - Shinichiro Kato
- Department of Anesthesiology, Chiba University Hospital, Chiba University, Chiba, Japan
| | - Hirohisa Imai
- Department of Radiology, Chiba University Hospital, Chiba University, Chiba, Japan
| | - Yoshitada Masuda
- Department of Radiology, Chiba University Hospital, Chiba University, Chiba, Japan
| | - Yasunori Sato
- Department of Global Clinical Research, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Shiroh Isono
- Department of Anesthesiology, Graduate School of Medicine, Chiba University, Chiba, Japan
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20
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Xu X, Eshima S, Kato S, Fisher DE, Sakurai H, Hayakawa Y, Yokoyama S. Rational Combination Therapy for Melanoma with Dinaciclib by Targeting BAK-Dependent Cell Death. Mol Cancer Ther 2019; 19:627-636. [PMID: 31744894 DOI: 10.1158/1535-7163.mct-19-0451] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 09/17/2019] [Accepted: 11/14/2019] [Indexed: 12/26/2022]
Abstract
Mutation of the oncogene BRAF is among the most common genetic alterations in melanoma. BRAF inhibitors alone or in combination with MEK inhibitors fail to eradicate the tumor in most patients due to combinations of intrinsic or acquired resistance. Therefore, novel strategies are needed to improve the therapeutic efficacy of BRAF inhibition. We demonstrated that dinaciclib has potent antimelanoma effects by inducing BAK-dependent apoptosis through MCL1 reduction. Contrary to dinaciclib, the inhibitors of BRAF/MEK/CDK4/6 induced apoptosis dominantly through a BAX-dependent mechanism. Although the combination of BRAF and MEK inhibitors did not exhibit additive antimelanoma effects, their combination with dinaciclib synergistically inhibited melanoma growth both in vitro and in vivo Collectively, our present findings suggest dinaciclib to be an effective complementary drug of BAX-dependent antimelanoma drugs by targeting BAK-mediated apoptosis, and other such rational drug combinations can be determined by identifying complementary drugs activating either BAK or BAX.
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Affiliation(s)
- Xiaoou Xu
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Shizuka Eshima
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Shinichiro Kato
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan.,Department of Dermatology, Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Massachusetts
| | - David E Fisher
- Department of Dermatology, Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Massachusetts
| | - Hiroaki Sakurai
- Department of Cancer Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Yoshihiro Hayakawa
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Satoru Yokoyama
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan. .,Department of Cancer Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
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21
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Ishibashi K, Kitamura Y, Kato S, Sugano M, Sakaguchi Y, Sato Y, Isono S. Changes in laryngeal airway patency in response to complete reversal of rocuronium-induced paralysis with sugammadex in small children with a supraglottic airway: protective effect of fentanyl? Br J Anaesth 2019; 125:e158-e160. [PMID: 31623839 DOI: 10.1016/j.bja.2019.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/01/2019] [Accepted: 09/02/2019] [Indexed: 12/17/2022] Open
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22
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Isono S, Nozaki-Taguchi N, Hasegawa M, Kato S, Todoroki S, Masuda S, Iida N, Nishimura T, Noto M, Sato Y. Contact-free unconstraint respiratory measurements with load cells under the bed in awake healthy volunteers: breath-by-breath comparison with pneumotachography. J Appl Physiol (1985) 2019; 126:1432-1441. [DOI: 10.1152/japplphysiol.00730.2018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Rate of respiration is a fundamental vital sign. Accuracy and precision of respiratory rate measurements with contact-free load cell sensors under the bed legs were assessed by breath-by-breath comparison with the pneumotachography technique during two different dynamic breathing tasks in 16 awake human adults resting on the bed. The subject voluntarily increased and decreased the respiratory rate between 4 and 16 breaths/min ( n = 8) and 10 and 40 breaths/min ( n = 8) at every 2 breaths in 6 different lying postures such as supine, left lateral, right lateral, and 30, 45, and 60° sitting postures. Reciprocal phase changes of the upper and lower load cell signals accorded with the respiratory phases indicating respiratory-related shifts of the centroid along the long axis of the bed. Bland-Altman analyses revealed 0.66 and 1.59 breaths/min standard deviation differences between the techniques (limits of agreement: −1.22 to 1.36 and −2.96 to 3.30) and 0.07 and 0.17 breaths/min fixed bias differences (accuracy) (confidence interval: 0.04 to 0.10 and 0.12 to 0.22) for the mean respiratory rates of 10.5 ± 3.7 and 24.6 ± 8.9 breaths/min, respectively, regardless of the body postures on the bed. Proportional underestimation by this technique was evident for respiratory rates >40 breaths/min. Sample breath increase up to 10 breaths improved the precision from 1.59 to 0.26 breaths/min. Abnormally faster and slower respirations were accurately detected. We conclude that contact-free unconstraint respiratory rate measurements with load cells under the bed legs are accurate and may serve as a new clinical and investigational tool. NEW & NOTEWORTHY Four load cells placed under the bed legs successfully captured a centroid shift during respiration in human subjects lying on a bed. Breath-by-breath comparison of the breaths covering a wide respiratory rate range by pneumotachography confirmed reliability of the contact-free unconstraint respiratory rate measurements by small standard deviations and biases regardless of body postures. Abnormally faster and slower respirations were accurately detected. This technique should be an asset as a new clinical and investigational tool.
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Affiliation(s)
- Shiroh Isono
- Department of Anesthesiology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | | | - Makoto Hasegawa
- Department of Anesthesiology, Chiba University Hospital, Chiba, Japan
| | - Shinichiro Kato
- Department of Anesthesiology, Chiba University Hospital, Chiba, Japan
| | - Shinsuke Todoroki
- Functional Technology Department, Section 4, R&D Division Electronic Device and Component, Manufacturing Headquarters and Engineering Headquarters, MinebeaMitsumi, Fukuroi, Japan
| | - Shigemi Masuda
- Functional Technology Department, Section 4, R&D Division Electronic Device and Component, Manufacturing Headquarters and Engineering Headquarters, MinebeaMitsumi, Fukuroi, Japan
| | - Norihito Iida
- Sensing Device Business Unit, Electronic Device Division, Electronic Device and Component Manufacturing Headquarters, MinebeaMitsumi, Fujisawa, Japan
| | - Toshiaki Nishimura
- Sales Planning Office, Bed Sensor Product Management Division, MinebeaMitsumi, Tokyo, Japan
| | - Masatoshi Noto
- Sensing Device Business Unit, Electronic Device Division, Electronic Device and Component Manufacturing Headquarters, MinebeaMitsumi, Fujisawa, Japan
| | - Yasunori Sato
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo, Japan
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23
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Ishi-i T, Tanaka H, Youfu R, Aizawa N, Yasuda T, Kato SI, Matsumoto T. Mechanochromic fluorescence based on a combination of acceptor and bulky donor moieties: tuning emission color and regulating emission change direction. NEW J CHEM 2019. [DOI: 10.1039/c8nj06050a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Mechanochromic fluorescence based on a conventional strategy using a donor–acceptor structure bearing nonplanar three-dimensional donor moieties was studied.
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Affiliation(s)
- Tsutomu Ishi-i
- Department of Biochemistry and Applied Chemistry
- National Institute of Technology
- Kurume College
- Kurume 830-8555
- Japan
| | - Honoka Tanaka
- Department of Biochemistry and Applied Chemistry
- National Institute of Technology
- Kurume College
- Kurume 830-8555
- Japan
| | - Ryusuke Youfu
- Department of Biochemistry and Applied Chemistry
- National Institute of Technology
- Kurume College
- Kurume 830-8555
- Japan
| | - Naoya Aizawa
- INAMORI Frontier Research Center (IFRC)
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takuma Yasuda
- INAMORI Frontier Research Center (IFRC)
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Shin-ichiro Kato
- Department of Materials Science
- School of Engineering
- The University of Shiga Prefecture
- Hikone 522-8533
- Japan
| | - Taisuke Matsumoto
- Institute for Materials Chemistry and Engineering
- Kyushu University
- Kasuga 816-8580
- Japan
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24
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Watanabe K, Yokoyama S, Kaneto N, Hori T, Iwakami Y, Kato S, Hayakawa Y, Sakurai H, Fukuoka J, Saiki I. COP9 signalosome subunit 5 regulates cancer metastasis by deubiquitinating SNAIL. Oncotarget 2018; 9:20670-20680. [PMID: 29755680 PMCID: PMC5945527 DOI: 10.18632/oncotarget.25060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 03/21/2018] [Indexed: 12/13/2022] Open
Abstract
Cancer metastasis is a major cause of mortality in cancer patients. The transcription factor SNAIL plays an important role in cancer metastasis and progression, and its expression is tightly regulated by the ubiquitin-proteasome system through the balance between ubiquitin ligases and deubiquitinating enzymes. While several ubiquitin ligases of SNAIL have been identified, it is not yet clear regarding deubiquitinating enzyme. In this study, we identified COP9 signalosome subunit 5 (COPS5) as a deubiquitinating enzyme of SNAIL by using siRNA library screening. COPS5 downregulation significantly reduced the expression of SNAIL and impaired the metastatic potential of lung cancer cells both in vitro and in vivo. Importantly, we demonstrated that COPS5 binds to SNAIL and stabilizes its expression by deubiquitination. Furthermore, we observed the positive correlation between COPS5 and SNAIL expression in the clinical tissue samples of lung adenocarcinomas by using tissue microarray analysis. These findings provide strong evidence that COPS5 can be a new therapeutic target for cancer metastasis as a deubiquitinating enzyme of SNAIL.
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Affiliation(s)
- Kensuke Watanabe
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Satoru Yokoyama
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Naoki Kaneto
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Takashi Hori
- Department of Diagnostic Pathology, Toyama University Hospital, Toyama 930-0194, Japan
| | - Yusuke Iwakami
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Shinichiro Kato
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Yoshihiro Hayakawa
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Hiroaki Sakurai
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan.,Department of Cancer Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| | - Junya Fukuoka
- Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan
| | - Ikuo Saiki
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
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25
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Abstract
Rice (Oryza sativa L) is one of the most Mn-tolerant crops that can grow in submerged paddy fields, where the Mn concentration in soil solution is very high due to reduction. Although a large part of Mn is transferred from the roots to the shoot in rice, the roots are constantly exposed to high Mn concentrations in submerged paddies. Thus, mechanisms for preventing Mn overaccumulation in the cytoplasm of root cells are necessary. Recently, we showed that two cation diffusion facilitators, MTP8.1 and MTP8.2, play a crucial role in Mn tolerance in rice roots by sequestering Mn in vacuoles. Moreover, we observed that disruption of MTP8.1 and MTP8.2 resulted in reduced Mn accumulation under excess Mn. In the present study, we examined the effects of disruption of MTP8.1 and MTP8.2 on Mn uptake and determined that this phenotype is caused by a rapid and significant reduction of Mn uptake in response to excess Mn. Previously, we showed that Mn export from root cells through MTP9 was promoted by high Mn. Together, these findings suggest that optimal Mn concentration in rice roots is maintained by reduced uptake, vacuolar sequestration, and extrusion by cation diffusion facilitators.
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Affiliation(s)
- Yuta Tsunemitsu
- Graduate School of Integrated Arts and Science, Kochi University, Nankoku, Japan
| | - Naoki Yamaji
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Shin-ichiro Kato
- Graduate School of Integrated Arts and Science, Kochi University, Nankoku, Japan
| | - Kozo Iwasaki
- Graduate School of Integrated Arts and Science, Kochi University, Nankoku, Japan
| | - Daisei Ueno
- Graduate School of Integrated Arts and Science, Kochi University, Nankoku, Japan
- CONTACT Daisei Ueno Graduate School of Integrated Arts and Science, Kochi University, Otsu 200, Monobe, Nankoku, Kochi 783-8502, Japan
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26
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Kato SI, Jin S, Kimura T, Yoshikawa N, Nara D, Imamura K, Shiota Y, Yoshizawa K, Katoono R, Yamanobe T, Uehara H, Nakamura Y. Trithiazolyl-1,3,5-triazines bearing decyloxybenzene moieties: synthesis, photophysical and electrochemical properties, and self-assembly behavior. Org Biomol Chem 2018; 16:3584-3595. [DOI: 10.1039/c8ob00471d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We synthesized the first members of trithiazolyl-1,3,5-triazines that combine attractive photophysical and self-assembling properties.
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27
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Takahashi N, Kato SI, Yamaji M, Ueno M, Iwabuchi R, Shimizu Y, Nitani M, Ie Y, Aso Y, Yamanobe T, Uehara H, Nakamura Y. Tetraalkoxyphenanthrene-Fused Hexadecadehydro[20]- and Tetracosadehydro[30]annulenes: Syntheses, Aromaticity/Antiaromaticity, Electronic Properties, and Self-Assembly. J Org Chem 2017; 82:8882-8896. [DOI: 10.1021/acs.joc.7b01165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Nobutaka Takahashi
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Shin-ichiro Kato
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Minoru Yamaji
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Masahiko Ueno
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Ryunosuke Iwabuchi
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yui Shimizu
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Masashi Nitani
- The
Institute of Scientific and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Yutaka Ie
- The
Institute of Scientific and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Yoshio Aso
- The
Institute of Scientific and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Takeshi Yamanobe
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Hiroki Uehara
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yosuke Nakamura
- Division
of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
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28
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Kato S, Yokoyama S, Hayakawa Y, Li L, Iwakami Y, Sakurai H, Saiki I. P38 pathway as a key downstream signal of connective tissue growth factor to regulate metastatic potential in non-small-cell lung cancer. Cancer Sci 2016; 107:1416-1421. [PMID: 27403934 PMCID: PMC5084657 DOI: 10.1111/cas.13009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [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: 02/29/2016] [Revised: 06/22/2016] [Accepted: 07/08/2016] [Indexed: 12/23/2022] Open
Abstract
Although the secretory matricellular protein connective tissue growth factor (CTGF) has been reported to be related to lung cancer metastasis, the precise mechanism by which CTGF regulates lung cancer metastasis has not been elucidated. In the present study, we show the molecular link between CTGF secretion and the p38 pathway in the invasive and metastatic potential of non‐small‐cell lung cancer (NSCLC). Among three different human NSCLC cell lines (PC‐14, A549, and PC‐9), their in vitro invasiveness was inversely correlated with the level of CTGF secretion. By supplementing or reducing CTGF secretion in NSCLC culture, dysregulation of the invasive and metastatic potential of NSCLC cell lines was largely compensated. By focusing on the protein kinases that are known to be regulated by CTGF, we found that the p38 pathway is a key downstream signal of CTGF to regulate the metastatic potential of NSCLC. Importantly, a negative correlation between CTGF and phosphorylation status of p38 was identified in The Cancer Genome Atlas lung adenocarcinoma dataset. In the context of the clinical importance of our findings, we showed that p38 inhibitor, SB203580, reduced the metastatic potential of NSCLC secreting low levels of CTGF. Collectively, our present findings indicate that the CTGF/p38 axis is a novel therapeutic target of NSCLC metastasis, particularly NSCLC secreting low levels of CTGF.
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Affiliation(s)
- Shinichiro Kato
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Satoru Yokoyama
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan.
| | - Yoshihiro Hayakawa
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Luhui Li
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Yusuke Iwakami
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Hiroaki Sakurai
- Department of Cancer Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Ikuo Saiki
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
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29
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Jin S, Kato SI, Nakamura Y. Synthesis, Self-association, and Anion Recognition of Conjugated Macrocycles Composed of Carbazole and Triazolium Moieties. CHEM LETT 2016. [DOI: 10.1246/cl.160400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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30
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Hakoda Y, Aoyagi M, Irisawa KI, Kato SI, Nakamura Y, Yamaji M. Photochemical synthesis and photophysical features of ethynylphenanthrenes studied by emission and transient absorption measurements. Photochem Photobiol Sci 2016; 15:1586-1593. [DOI: 10.1039/c6pp00291a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phenanthrenes substituted with C–C triple bonds were photochemically prepared, and the photophysical features in solution were investigated based on emission and transient absorption measurements.
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Affiliation(s)
- Yuma Hakoda
- Education Program of Materials and Bioscience
- Graduate School of Science and Engineering
- Gunma University
- Kiryu
- Japan
| | - Masatoshi Aoyagi
- Education Program of Materials and Bioscience
- Graduate School of Science and Engineering
- Gunma University
- Kiryu
- Japan
| | - Ken-ichi Irisawa
- Education Program of Materials and Bioscience
- Graduate School of Science and Engineering
- Gunma University
- Kiryu
- Japan
| | - Shin-ichiro Kato
- Division of Molecular Science
- Graduate School of Science and Engineering
- Gunma University
- Kiryu
- Japan
| | - Yosuke Nakamura
- Division of Molecular Science
- Graduate School of Science and Engineering
- Gunma University
- Kiryu
- Japan
| | - Minoru Yamaji
- Division of Molecular Science
- Graduate School of Science and Engineering
- Gunma University
- Kiryu
- Japan
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31
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Kato SI, Noguchi H, Jin S, Nakamura Y. Synthesis and Electronic, Optical, and Electrochemical Properties of a Series of Tetracyanobutadiene-Substituted Carbazoles. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500431] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shin-ichiro Kato
- Division of Molecular Science; Faculty of Science and Technology; Gunma University; 1-5-1 Tenjin-cho Kiryu Gunma 376-8515 Japan
| | - Hiroto Noguchi
- Division of Molecular Science; Faculty of Science and Technology; Gunma University; 1-5-1 Tenjin-cho Kiryu Gunma 376-8515 Japan
| | - Satoshi Jin
- Division of Molecular Science; Faculty of Science and Technology; Gunma University; 1-5-1 Tenjin-cho Kiryu Gunma 376-8515 Japan
| | - Yosuke Nakamura
- Division of Molecular Science; Faculty of Science and Technology; Gunma University; 1-5-1 Tenjin-cho Kiryu Gunma 376-8515 Japan
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32
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Kato SI, Yamada Y, Hiyoshi H, Umezu K, Nakamura Y. Series of Carbazole-Pyrimidine Conjugates: Syntheses and Electronic, Photophysical, and Electrochemical Properties. J Org Chem 2015; 80:9076-90. [PMID: 26301629 DOI: 10.1021/acs.joc.5b01409] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of carbazole-pyrimidine conjugates 1-17 were synthesized by Pd-catalyzed cross-coupling, oxidation, and nucleophilic aromatic substitution reactions. In 1-17, the carbazole moieties are connected at the 4,6-positions of the pyrimidine ring either directly or via ethynylene or vinylene spacers, and various electron-donating or electron-withdrawing substituents are introduced at the 2-position of the pyrimidine ring. The effects of structural variations on the electronic, photophysical, and electrochemical properties of 1-17 were comprehensively investigated. Compounds 1-17 exhibit intramolecular charge-transfer (ICT) states, which essentially lead to moderate-to-strong fluorescence emission with large Stokes shifts depending on the solvent polarity. These compounds tend to show significant changes in optical and fluorescence properties upon addition of trifluoroacetic acid. The electron-accepting ability of these compounds can be tuned by both substituents on the pyrimidine moiety and spacers. The ethynylene spacer lowers both the HOMO and LUMO levels, while the vinylene spacer elevates the HOMO level and lowers the LUMO level. The X-ray crystal structures of 3, 6, 11, and 14 are also disclosed.
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Affiliation(s)
- Shin-ichiro Kato
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yuji Yamada
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Hidetaka Hiyoshi
- Ihara Chemical Industry Co., Ltd. , Taito-ku, Tokyo 110-0008, Japan
| | - Kazuto Umezu
- Ihara Chemical Industry Co., Ltd. , Taito-ku, Tokyo 110-0008, Japan
| | - Yosuke Nakamura
- Division of Molecular Science, Faculty of Science and Technology, Gunma University , 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
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33
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Kato S, Isono S, Amemiya M, Sato S, Ikeda A, Okazaki J, Sato Y, Ishikawa T. Submental negative pressure application decreases collapsibility of the passive pharyngeal airway in nonobese women. J Appl Physiol (1985) 2015; 118:912-20. [DOI: 10.1152/japplphysiol.00158.2014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 01/19/2015] [Indexed: 11/22/2022] Open
Abstract
The pharyngeal airway is surrounded by soft tissues that are also enclosed by bony structures such as the mandible, maxilla, and cervical spine. The passive pharyngeal airway is therefore structurally analogous to a collapsible tube within a rigid box. Cross-sectional area of the tube is determined by transmural pressure, the pressure difference between intraluminal and extraluminal pressures. Due to a lack of knowledge on the influence of extraluminal soft tissue pressure on the human pharyngeal airway patency, we hypothesized that application of negative external pressure to the submental region decreases collapsibility of the passive pharynx, and that obese individuals have less response to the intervention than nonobese individuals. Static mechanical properties of the passive pharynx were compared before and during application of submental negative pressure in 10 obese and 10 nonobese adult women under general anesthesia and paralysis. Negative pressure was applied through use of a silicone collar covering the entire submental region and a vacuum pump. In nonobese subjects, application of submental negative pressure (−25 and −50 cmH2O) significantly decreased closing pressures at the retropalatal airway by 2.3 ± 3.2 cmH2O and 2.0 ± 3.0 cmH2O, respectively, and at the retroglossal airway by 2.9 ± 2.7 cmH2O and 3.7 ± 2.6 cmH2O, respectively, and the intervention stiffened the retroglossal pharyngeal airway wall. No significant mechanical changes were observed during application of submental negative pressure in obese subjects. Conclusively, application of submental negative pressure was found to decreases collapsibility of the passive pharyngeal airway in nonobese Japanese women.
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Affiliation(s)
- Shinichiro Kato
- Department of Anesthesiology, Chiba University Hospital, Chiba, Japan; and
| | - Shiroh Isono
- Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Megumi Amemiya
- Department of Anesthesiology, Chiba University Hospital, Chiba, Japan; and
| | - Shin Sato
- Department of Anesthesiology, Chiba University Hospital, Chiba, Japan; and
| | - Aya Ikeda
- Department of Anesthesiology, Chiba University Hospital, Chiba, Japan; and
| | - Junko Okazaki
- Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yumi Sato
- Department of Anesthesiology (B1), Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Teruhiko Ishikawa
- Department of Anesthesiology, Chiba University Hospital, Chiba, Japan; and
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Toge M, Yokoyama S, Kato S, Sakurai H, Senda K, Doki Y, Hayakawa Y, Yoshimura N, Saiki I. Critical contribution of MCL-1 in EMT-associated chemo-resistance in A549 non-small cell lung cancer. Int J Oncol 2015; 46:1844-8. [PMID: 25647738 DOI: 10.3892/ijo.2015.2861] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 12/23/2014] [Indexed: 11/06/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is one of the leading causes of death in all lung cancer patients due to its metastatic spread. Even though cisplatin treatment after surgical resection of the primary tumor has been established as a standard chemotherapy for residual disease including metastatic spread, NSCLC often acquires a resistance against chemotherapy, and metastatic disease is often observed. Amongst many potential mechanisms, epithelial-to-mesenchymal transition (EMT) has been considered as an important process in acquiring both metastatic spread and chemo-resistance of NSCLC. In this study, we identified MCL-1 as a critical molecule for chemo-resistance in A549 cells associated with TGF-β-induced EMT. Importantly, downregulation of MCL-1 by siRNA or inhibition of MCL-1 with pan-BCL2 inhibitor to inhibit MCL-1 was able to overcome the EMT-associated chemo-resistance in A549 cells. Collectively, MCL-1 can be a new therapeutic target for overcoming EMT-associated chemo-resistance in NSCLC patients in the context of post-operative chemotherapies.
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Affiliation(s)
- Masayoshi Toge
- Department of Thoracic and Cardiovascular Surgery, University of Toyama, Toyama 930-0194, Japan
| | - Satoru Yokoyama
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Shinichiro Kato
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Hiroaki Sakurai
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Kazutaka Senda
- Department of Thoracic and Cardiovascular Surgery, University of Toyama, Toyama 930-0194, Japan
| | - Yoshinori Doki
- Department of Thoracic and Cardiovascular Surgery, University of Toyama, Toyama 930-0194, Japan
| | - Yoshihiro Hayakawa
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Naoki Yoshimura
- Department of Thoracic and Cardiovascular Surgery, University of Toyama, Toyama 930-0194, Japan
| | - Ikuo Saiki
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama 930-0194, Japan
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35
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Kato SI, Furuya T, Nitani M, Hasebe N, Ie Y, Aso Y, Yoshihara T, Tobita S, Nakamura Y. A Series of π-Extended Thiadiazoles Fused with Electron-Donating Heteroaromatic Moieties: Synthesis, Properties, and Polymorphic Crystals. Chemistry 2014; 21:3115-28. [DOI: 10.1002/chem.201405478] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Indexed: 11/09/2022]
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36
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Nagao T, Warnakulasuriya S, Nakamura T, Kato S, Yamamoto K, Fukano H, Suzuki K, Shimozato K, Hashimoto S. Treatment of oral leukoplakia with a low-dose of beta-carotene and vitamin C supplements: a randomized controlled trial. Int J Cancer 2014; 136:1708-17. [PMID: 25156040 DOI: 10.1002/ijc.29156] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 07/29/2014] [Accepted: 08/08/2014] [Indexed: 12/31/2022]
Abstract
Management of oral leukoplakia-a potentially malignant disorder-is currently not evidence-based. Of the few randomized trials that have been reported, most have negative data. Therefore, a multi-centre, randomized, double-blind controlled trial (RCT) was undertaken to evaluate the use of low-dose beta-carotene combined with vitamin C supplements for the treatment and to prevent malignant transformation of oral leukoplakia. 46 Japanese participants with oral leukoplakia were allocated randomly either to an experimental arm (10 mg day(-1) of beta-carotene and 500 mg day(-1) of vitamin C) or placebo arm (50 mg day(-1) of vitamin C). Current or ex-smokers within 3 months of cessation were excluded. The supplements were continued over a period of 1 year. The primary endpoint was clinical remission at 1-year and the likelihood of malignant transformation during a 5-year follow-up period as a secondary endpoint. The overall clinical response rate in the experimental arm was 17.4% (4/23) and 4.3% (1/23) in the placebo arm (p = 0.346). During the median 60-month follow-up period, two subjects in the experimental arm and three in the control arm developed oral cancer. Under the intention-to-treat principle, relative risk by supplementing with beta-carotene and vitamin C was 0.77 (95%CI: 0.28-1.89) (p = 0.580) by the Cox proportional hazards model. No unfavorable side-effects were noted. Beta-carotene (10 mg day(-1) ) and vitamin C were neither effective for clinical remission, nor for protection against the development of cancer. Data from this RCT does not support the hypothesis that chemoprevention with this treatment is effective for oral leukoplakia.
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Affiliation(s)
- Toru Nagao
- Department of Oral and Maxillofacial Surgery and Stomatology, Okazaki City Hospital, Okazaki, Japan; Department of Oral Medicine, WHO Collaborating Centre for Oral Cancer/Precancer, King's, College London Dental Institute at Guy's, King's & St. Thomas' Hospitals, London, United Kingdom; Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan; Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
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37
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Kaneto N, Yokoyama S, Hayakawa Y, Kato S, Sakurai H, Saiki I. RAC1 inhibition as a therapeutic target for gefitinib-resistant non-small-cell lung cancer. Cancer Sci 2014; 105:788-94. [PMID: 24750242 PMCID: PMC4317907 DOI: 10.1111/cas.12425] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/09/2014] [Accepted: 04/17/2014] [Indexed: 02/06/2023] Open
Abstract
Although epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors (EGFR-TKI), including gefitinib, provide a significant clinical benefit in non-small-cell lung cancer (NSCLC) patients, the acquisition of drug resistance has been known to limit the efficacy of EGFR-TKI therapy. In this study, we demonstrated the involvement of EGF-EGFR signaling in NSCLC cell migration and the requirement of RAC1 in EGFR-mediated progression of NSCLC. We showed the significant role of RAC1 pathway in the cell migration or lamellipodia formation by using gene silencing of RAC1 or induction of constitutive active RAC1 in EGFR-mutant NSCLC cells. Importantly, the RAC1 inhibition suppressed EGFR-mutant NSCLC cell migration and growth in vitro, and growth in vivo even in the gefitinib-resistant cells. In addition, these suppressions by RAC1 inhibition were mediated through MEK or PI3K independent mechanisms. Collectively, these results open up a new opportunity to control the cancer progression by targeting the RAC1 pathway to overcome the resistance to EGFR-TKI in NSCLC patients.
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Affiliation(s)
- Naoki Kaneto
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
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38
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Miyata R, Yamaguchi K, Uchiyama J, Shigehisa R, Takemura-Uchiyama I, Kato SI, Ujihara T, Sakaguchi Y, Daibata M, Matsuzaki S. Characterization of a novel Pseudomonas aeruginosa bacteriophage, KPP25, of the family Podoviridae. Virus Res 2014; 189:43-6. [PMID: 24801109 DOI: 10.1016/j.virusres.2014.04.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 04/25/2014] [Accepted: 04/25/2014] [Indexed: 11/26/2022]
Abstract
Pseudomonas aeruginosa phages belonging to the family Podoviridae are one of the well-characterized phage groups. In this study, a novel P. aeruginosa phage, KPP25, was isolated and characterized. Phage KPP25's morphology was indicative of the family Podoviridae; however, analyses of the whole genome and the virion proteins suggested that it did not belong to any of the known podophage genera. Based on these analyses, phage KPP25 appears to be a novel podophage infecting P. aeruginosa.
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Affiliation(s)
- Reina Miyata
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan; Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
| | - Kotoe Yamaguchi
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan; Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
| | - Jumpei Uchiyama
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan; Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan.
| | - Ryu Shigehisa
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan; Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
| | - Iyo Takemura-Uchiyama
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan
| | - Shin-ichiro Kato
- Research Institute of Molecular Genetics, Kochi University, Kochi, Japan
| | | | - Yoshihiko Sakaguchi
- Interdisciplinary Research Organization, University of Miyazaki, Miyazaki, Japan
| | - Masanori Daibata
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan; Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
| | - Shigenobu Matsuzaki
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan; Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
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Uchiyama J, Takemura-Uchiyama I, Kato SI, Sato M, Ujihara T, Matsui H, Hanaki H, Daibata M, Matsuzaki S. In silico analysis of AHJD-like viruses, Staphylococcus aureus phages S24-1 and S13', and study of phage S24-1 adsorption. Microbiologyopen 2014; 3:257-70. [PMID: 24591378 PMCID: PMC3996573 DOI: 10.1002/mbo3.166] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 12/27/2013] [Accepted: 01/18/2014] [Indexed: 11/24/2022] Open
Abstract
Staphylococcus aureus is a clinically important bacterium that is commensal in both humans and animals. Bacteriophage (phage) attachment to the host bacterial surface is an important process during phage infection, which involves interactions between phage receptor-binding proteins and host receptor molecules. However, little information is available on the receptor-binding protein of S. aureus phages. S. aureus virulent phages S24-1 and S13' (family Podoviridae, genus AHJD-like viruses) were isolated from sewage. In the present study, we investigated the receptor-binding protein of AHJD-like viruses using phage S24-1. First, based on a comparative genomic analysis of phages S24-1 and S13', open reading frame 16 (ORF16) of phage S24-1 was speculated to be the receptor-binding protein, which possibly determines the host range. Second, we demonstrated that this was the receptor-binding protein of phage S24-1. Third, our study suggested that wall teichoic acids in the cell walls of S. aureus are the main receptor molecules for ORF16 and phage S24-1. Finally, the C-terminal region of ORF16 may be essential for binding to S. aureus. These results strongly suggest that ORF16 of phage S24-1 and its homologs may be the receptor-binding proteins of AHJD-like viruses.
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Affiliation(s)
- Jumpei Uchiyama
- Department of Microbiology and Infection, Faculty of Medicine, Kochi UniversityNankoku City, Kochi, Japan
- Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi UniversityNankoku City, Kochi, Japan
| | - Iyo Takemura-Uchiyama
- Department of Microbiology and Infection, Faculty of Medicine, Kochi UniversityNankoku City, Kochi, Japan
| | - Shin-ichiro Kato
- Research Institute of Molecular Genetics, Kochi UniversityNankoku City, Kochi, Japan
| | - Miho Sato
- Science Research Center, Kochi UniversityNankoku City, Kochi, Japan
| | - Takako Ujihara
- Science Research Center, Kochi UniversityNankoku City, Kochi, Japan
| | - Hidehito Matsui
- Research Center for Infections and Antimicrobials, Kitasato Institute for Life Sciences, Kitasato UniversityTokyo, Japan
| | - Hideaki Hanaki
- Research Center for Infections and Antimicrobials, Kitasato Institute for Life Sciences, Kitasato UniversityTokyo, Japan
| | - Masanori Daibata
- Department of Microbiology and Infection, Faculty of Medicine, Kochi UniversityNankoku City, Kochi, Japan
- Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi UniversityNankoku City, Kochi, Japan
| | - Shigenobu Matsuzaki
- Department of Microbiology and Infection, Faculty of Medicine, Kochi UniversityNankoku City, Kochi, Japan
- Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi UniversityNankoku City, Kochi, Japan
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40
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Uchiyama J, Takemura-Uchiyama I, Sakaguchi Y, Gamoh K, Kato SI, Daibata M, Ujihara T, Misawa N, Matsuzaki S. Intragenus generalized transduction in Staphylococcus spp. by a novel giant phage. ISME J 2014; 8:1949-52. [PMID: 24599069 DOI: 10.1038/ismej.2014.29] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 12/10/2013] [Accepted: 01/24/2014] [Indexed: 01/22/2023]
Abstract
Bacteriophage (phage)-mediated generalized transduction is expected to contribute to the emergence of drug-resistant staphylococcal clones in various environments. In this study, novel phage S6 was isolated from sewage and used to test generalized transduction in human- and animal-derived staphylococci. Phage S6 was a novel type of giant myophage, which possessed a DNA genome that contained uracil instead of thymine, and it could infect all of the tested staphylococcal species. The phage S6 appeared to be similar to the transducing phage PBS1, which infects Bacillus spp. Moreover, phage S6 facilitated the transduction of a plasmid in Staphylococcus aureus and from S. aureus to non-aureus staphylococcal species, as well as vice versa. Transduction of methicillin resistance also occurred in S. aureus. This is the first report of successful intragenus generalized transduction among staphylococci.
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Affiliation(s)
- Jumpei Uchiyama
- 1] Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan [2] Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
| | - Iyo Takemura-Uchiyama
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan
| | - Yoshihiko Sakaguchi
- Interdisciplinary Research Organization, University of Miyazaki, Miyazaki, Japan
| | - Keiji Gamoh
- Research and Education Faculty, Multidisciplinary Science Cluster, Interdisciplinary Science Unit, Kochi University, Kochi, Japan
| | - Shin-ichiro Kato
- Research Institute of Molecular Genetics, Kochi University, Kochi, Japan
| | - Masanori Daibata
- 1] Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan [2] Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
| | | | - Naoaki Misawa
- Laboratory of Veterinary Public Health, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Shigenobu Matsuzaki
- 1] Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan [2] Center for Innovative and Translational Medicine, Faculty of Medicine, Kochi University, Kochi, Japan
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41
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Kato S, Hayakawa Y, Sakurai H, Saiki I, Yokoyama S. Mesenchymal-transitioned cancer cells instigate the invasion of epithelial cancer cells through secretion of WNT3 and WNT5B. Cancer Sci 2014; 105:281-9. [PMID: 24344732 PMCID: PMC4317934 DOI: 10.1111/cas.12336] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [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: 11/08/2013] [Revised: 12/10/2013] [Accepted: 12/12/2013] [Indexed: 01/08/2023] Open
Abstract
Although the heterogeneities of epithelial and mesenchymal-transitioned cancer cells are often observed within the tumor microenvironment, the biological significance of the interaction between epithelial cancer cells and mesenchymal-transitioned cancer cells is not yet understood. In this study, we show that the mesenchymal-transitioned cancer cells instigate the invasive ability and metastatic potential of the neighboring epithelial cancer cells in vitro and in vivo. We identify WNT3 and WNT5B as critical factors secreted from Transforming growth factor-induced mesenchymal cancer cells for instigating the epithelial cancer cell invasion along with the induction of secondary EMT phenotype. These results shed light on the significance of cancer heterogeneity and the interaction between epithelial and mesenchymal-transitioned cancer cells within the tumor microenvironment in promoting metastatic disease through the WNT-dependent mechanism.
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Affiliation(s)
- Shinichiro Kato
- Division of Pathogenic Biochemistry, Institute of Natural Medicine, University of Toyama, Toyama, Japan
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42
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Kato SI, Shimizu S, Kobayashi A, Yoshihara T, Tobita S, Nakamura Y. Systematic Structure–Property Investigations on a Series of Alternating Carbazole–Thiophene Oligomers. J Org Chem 2014; 79:618-29. [DOI: 10.1021/jo402416f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shin-ichiro Kato
- Division
of Molecular Science,
Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Satoru Shimizu
- Division
of Molecular Science,
Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Atsushi Kobayashi
- Division
of Molecular Science,
Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Toshitada Yoshihara
- Division
of Molecular Science,
Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Seiji Tobita
- Division
of Molecular Science,
Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Yosuke Nakamura
- Division
of Molecular Science,
Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
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43
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Dengiz C, Dumele O, Kato SI, Zalibera M, Cias P, Schweizer WB, Boudon C, Gisselbrecht JP, Gescheidt G, Diederich F. From Homoconjugated Push-Pull Chromophores to Donor-Acceptor-Substituted Spiro Systems by Thermal Rearrangement. Chemistry 2014; 20:1279-86. [DOI: 10.1002/chem.201303533] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Indexed: 11/06/2022]
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Chen Z, Fujii Y, Yamaji N, Masuda S, Takemoto Y, Kamiya T, Yusuyin Y, Iwasaki K, Kato SI, Maeshima M, Ma JF, Ueno D. Mn tolerance in rice is mediated by MTP8.1, a member of the cation diffusion facilitator family. J Exp Bot 2013; 64:4375-87. [PMID: 23963678 PMCID: PMC3808320 DOI: 10.1093/jxb/ert243] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Manganese (Mn) is an essential micronutrient for plants, but is toxic when present in excess. The rice plant (Oryza sativa L.) accumulates high concentrations of Mn in the aerial parts; however, the molecular basis for Mn tolerance is poorly understood. In the present study, genes encoding Mn tolerance were screened for by expressing cDNAs of genes from rice shoots in Saccharomyces cerevisiae. A gene encoding a cation diffusion facilitator (CDF) family member, OsMTP8.1, was isolated, and its expression was found to enhance Mn accumulation and tolerance in S. cerevisiae. In plants, OsMTP8.1 and its transcript were mainly detected in shoots. High or low supply of Mn moderately induced an increase or decrease in the accumulation of OsMTP8.1, respectively. OsMTP8.1 was detected in all cells of leaf blades through immunohistochemistry. OsMTP8.1 fused to green fluorescent protein was localized to the tonoplast. Disruption of OsMTP8.1 resulted in decreased chlorophyll levels, growth inhibition in the presence of high concentrations of Mn, and decreased accumulation of Mn in shoots and roots. However, there was no difference in the accumulation of other metals, including Zn, Cu, Fe, Mg, Ca, and K. These results suggest that OsMTP8.1 is an Mn-specific transporter that sequesters Mn into vacuoles in rice and is required for Mn tolerance in shoots.
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Affiliation(s)
- Zonghui Chen
- Faculty of Agriculture, Kochi University, Nankoku 783-8502Japan
| | - Yumi Fujii
- Faculty of Agriculture, Kochi University, Nankoku 783-8502Japan
| | - Naoki Yamaji
- Institute of Plant Science and Resources, Okayama University, Kurashiki 710-0046, Japan
| | - Sakine Masuda
- Faculty of Agriculture, Kochi University, Nankoku 783-8502Japan
| | - Yuma Takemoto
- Faculty of Agriculture, Kochi University, Nankoku 783-8502Japan
| | - Takehiro Kamiya
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | | | - Kozo Iwasaki
- Faculty of Agriculture, Kochi University, Nankoku 783-8502Japan
| | | | - Masayoshi Maeshima
- Laboratory of Cell Dynamics, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Kurashiki 710-0046, Japan
| | - Daisei Ueno
- Faculty of Agriculture, Kochi University, Nankoku 783-8502Japan
- * To whom correspondence should be addressed. E-mail:
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Takemura-Uchiyama I, Uchiyama J, Kato SI, Inoue T, Ujihara T, Ohara N, Daibata M, Matsuzaki S. Evaluating efficacy of bacteriophage therapy against Staphylococcus aureus infections using a silkworm larval infection model. FEMS Microbiol Lett 2013; 347:52-60. [PMID: 23869440 DOI: 10.1111/1574-6968.12220] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Revised: 06/04/2013] [Accepted: 07/15/2013] [Indexed: 01/21/2023] Open
Abstract
Silkworm larva has recently been recognized as an alternative model animal for higher mammals to evaluate the effects of antibiotics. In this study, we examined the efficacy of the bacteriophage (phage) therapy, which harnesses phages as antibacterial agents, against Staphylococcus aureus infections, using the silkworm larval infection model. Two newly isolated staphylococcal phages, S25-3 and S13', were used as therapeutic phage candidates. They were assigned to two different lytic phage genera, Twort-like and AHJD-like viruses, based on their morphologies and the N-terminal amino acid sequences of the major capsid proteins. Both had a broad host range and strong lytic activity and showed preservative quality. Administration of these phages alone caused no adverse effects in the silkworm larvae. Moreover, the viruses showed life-prolonging effects in the silkworm larval infection model 10 min, 6 h, 12 h, and 24 h following infection. Such phage effects in the silkworm larval model were almost paralleled to the therapeutic efficacies in mouse models. These results suggest that phages S25-3 and S13' are eligible as therapeutic candidates and that the silkworm larval model is valid for the evaluation of phage therapy as well as mouse models.
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Affiliation(s)
- Iyo Takemura-Uchiyama
- Department of Microbiology and Infection, Faculty of Medicine, Kochi University, Kochi, Japan
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46
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Kato SI, Takahashi N, Tanaka H, Kobayashi A, Yoshihara T, Tobita S, Yamanobe T, Uehara H, Nakamura Y. Tetraalkoxyphenanthrene-Fused Dehydroannulenes: Synthesis, Self-Assembly, and Electronic, Optical, and Electrochemical Properties. Chemistry 2013; 19:12138-51. [DOI: 10.1002/chem.201301262] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Indexed: 11/08/2022]
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47
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Kato SI, Takahashi N, Nakamura Y. Hexadecadehydrodibenzo[20]-, Tetracosadehydrotribenzo[30]-, and Dotriacontadehydrotetrabenzo[40]annulenes: Syntheses, Characterizations, Electronic Properties, and Self-Associations. J Org Chem 2013; 78:7658-63. [DOI: 10.1021/jo401200m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shin-ichiro Kato
- Division of Molecular Science, Faculty
of Science and
Technology, Gunma University, 1-5-1 Tenjin-cho,
Kiryu, Gunma 376-8515, Japan
| | - Nobutaka Takahashi
- Division of Molecular Science, Faculty
of Science and
Technology, Gunma University, 1-5-1 Tenjin-cho,
Kiryu, Gunma 376-8515, Japan
| | - Yosuke Nakamura
- Division of Molecular Science, Faculty
of Science and
Technology, Gunma University, 1-5-1 Tenjin-cho,
Kiryu, Gunma 376-8515, Japan
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48
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Uchiyama J, Takeuchi H, Kato SI, Gamoh K, Takemura-Uchiyama I, Ujihara T, Daibata M, Matsuzaki S. Characterization of Helicobacter pylori bacteriophage KHP30. Appl Environ Microbiol 2013; 79:3176-84. [PMID: 23475617 PMCID: PMC3685256 DOI: 10.1128/aem.03530-12] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 02/28/2013] [Indexed: 01/01/2023] Open
Abstract
Helicobacter pylori inhabits the stomach mucosa and is a causative agent of stomach ulcer and cancer. In general, bacteriophages (phages) are strongly associated with bacterial evolution, including the development of pathogenicity. Several tailed phages have so far been reported in H. pylori. We have isolated an H. pylori phage, KHP30, and reported its genomic sequence. In this study, we examined the biological characteristics of phage KHP30. Phage KHP30 was found to be a spherical lipid-containing phage with a diameter of ca. 69 nm. Interestingly, it was stable from pH 2.5 to pH 10, suggesting that it is adapted to the highly acidic environment of the human stomach. Phage KHP30 multiplied on 63.6% of clinical H. pylori isolates. The latent period was ca. 140 min, shorter than the doubling time of H. pylori (ca. 180 min). The burst size was ca. 13, which was smaller than the burst sizes of other known tailed or spherical phages. Phage KHP30 seemed to be maintained as an episome in H. pylori strain NY43 cells, despite a predicted integrase gene in the KHP30 genomic sequence. Seven possible virion proteins of phage KHP30 were analyzed using N-terminal protein sequencing and mass spectrometry, and their genes were found to be located on its genomic DNA. The genomic organization of phage KHP30 differed from the genomic organizations in the known spherical phage families Corticoviridae and Tectiviridae. This evidence suggests that phage KHP30 is a new type of spherical phage that cannot be classified in any existing virus category.
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Affiliation(s)
- Jumpei Uchiyama
- Department of Microbiology and Infection
- Center for Innovative and Translational Medicine
| | | | | | | | - Iyo Takemura-Uchiyama
- Department of Microbiology and Infection
- Department of Clinical Laboratory Medicine, Faculty of Medicine
| | | | - Masanori Daibata
- Department of Microbiology and Infection
- Center for Innovative and Translational Medicine
| | - Shigenobu Matsuzaki
- Department of Microbiology and Infection
- Center for Innovative and Translational Medicine
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49
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Affiliation(s)
- Shin-ichiro Kato
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | - Nanae Yamazaki
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | - Toshihiro Tajima
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
| | - Yosuke Nakamura
- Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University
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50
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Benhnia MREI, Maybeno M, Blum D, Aguilar-Sino R, Matho M, Meng X, Head S, Felgner PL, Zajonc DM, Koriazova L, Kato S, Burton DR, Xiang Y, Crowe JE, Peters B, Crotty S. Unusual features of vaccinia virus extracellular virion form neutralization resistance revealed in human antibody responses to the smallpox vaccine. J Virol 2013; 87:1569-85. [PMID: 23152530 PMCID: PMC3554146 DOI: 10.1128/jvi.02152-12] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 11/07/2012] [Indexed: 11/20/2022] Open
Abstract
The extracellular virion form (EV) of vaccinia virus (VACV) is essential for viral pathogenesis and is difficult to neutralize with antibodies. Why this is the case and how the smallpox vaccine overcomes this challenge remain incompletely understood. We previously showed that high concentrations of anti-B5 antibodies are insufficient to directly neutralize EV (M. R. Benhnia, et al., J. Virol. 83:1201-1215, 2009). This allowed for at least two possible interpretations: covering the EV surface is insufficient for neutralization, or there are insufficient copies of B5 to allow anti-B5 IgG to cover the whole surface of EV and another viral receptor protein remains active. We endeavored to test these possibilities, focusing on the antibody responses elicited by immunization against smallpox. We tested whether human monoclonal antibodies (MAbs) against the three major EV antigens, B5, A33, and A56, could individually or together neutralize EV. While anti-B5 or anti-A33 (but not anti-A56) MAbs of appropriate isotypes were capable of neutralizing EV in the presence of complement, a mixture of anti-B5, anti-A33, and anti-A56 MAbs was incapable of directly neutralizing EV, even at high concentrations. This remained true when neutralizing the IHD-J strain, which lacks a functional version of the fourth and final known EV surface protein, A34. These immunological data are consistent with the possibility that viral proteins may not be the active component of the EV surface for target cell binding and infectivity. We conclude that the protection afforded by the smallpox vaccine anti-EV response is predominantly mediated not by direct neutralization but by isotype-dependent effector functions, such as complement recruitment for antibodies targeting B5 and A33.
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Affiliation(s)
| | | | - David Blum
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Rowena Aguilar-Sino
- Department of Immunology and Microbial Science and IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California, USA
| | - Michael Matho
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology (LIAI), La Jolla, California, USA
| | - Xiangzhi Meng
- Department of Microbiology and Immunology, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Steven Head
- DNA Array Core Facility and Consortium for Functional Glycomics, The Scripps Research Institute, La Jolla, California, USA
| | - Philip L. Felgner
- Division of Infectious Diseases, Department of Medicine, University of California, Irvine, California, USA
| | - Dirk M. Zajonc
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology (LIAI), La Jolla, California, USA
| | | | | | - Dennis R. Burton
- Department of Immunology and Microbial Science and IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, California, USA
| | - Yan Xiang
- Department of Microbiology and Immunology, University of Texas Health Science Center, San Antonio, Texas, USA
| | - James E. Crowe
- Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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