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Kudo K, Nishimura T, Izumikawa M, Kozone I, Hashimoto J, Fujie M, Suenaga H, Ikeda H, Satoh N, Shin-Ya K. Capability of a large bacterial artificial chromosome clone harboring multiple biosynthetic gene clusters for the production of diverse compounds. J Antibiot (Tokyo) 2024; 77:288-298. [PMID: 38438499 DOI: 10.1038/s41429-024-00711-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/02/2024] [Accepted: 02/12/2024] [Indexed: 03/06/2024]
Abstract
The biosynthetic gene clusters (BGCs) for the macrocyclic lactone-based polyketide compounds are extremely large-sized because the polyketide synthases that generate the polyketide chains of the basic backbone are of very high molecular weight. In developing a heterologous expression system for the large BGCs amenable to the production of such natural products, we selected concanamycin as an appropriate target. We obtained a bacterial artificial chromosome (BAC) clone with a 211-kb insert harboring the entire BGC responsible for the biosynthesis of concanamycin. Heterologous expression of this clone in a host strain, Streptomyces avermitilis SUKA32, permitted the production of concanamycin, as well as that of two additional aromatic polyketides. Structural elucidation identified these additional products as ent-gephyromycin and a novel compound that was designated JBIR-157. We describe herein sequencing and expression studies performed on these BGCs, demonstrating the utility of large BAC clones for the heterologous expression of cryptic or near-silent loci.
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Affiliation(s)
- Kei Kudo
- Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Takehiro Nishimura
- Technology Research Association for Next Generation Natural Products Chemistry, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
- Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Miho Izumikawa
- Japan Biological Informatics Consortium (JBIC), 2-4-32 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Ikuko Kozone
- Japan Biological Informatics Consortium (JBIC), 2-4-32 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Junko Hashimoto
- Japan Biological Informatics Consortium (JBIC), 2-4-32 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Manabu Fujie
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa, 904-0495, Japan
| | - Hikaru Suenaga
- Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Haruo Ikeda
- Kitasato Institute for Life Sciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, 252-0373, Japan
- Technology Research Association for Next Generation Natural Products Chemistry, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Nori Satoh
- Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa, 904-0495, Japan
| | - Kazuo Shin-Ya
- Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan.
- Technology Research Association for Next Generation Natural Products Chemistry, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan.
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2
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Wakabayashi N, Kimura R, Kuwatani M, Matsui A, Ino N, Mitsuhashi T, Kishi K, Tsuneta S, Nakagawa J, Nishioka N, Sakamoto K, Kato F, Shimizu A, Hirano S, Kudo K. Gastrointestinal: Solid pseudopapillary neoplasm of the pancreas with high-grade malignant transformation. J Gastroenterol Hepatol 2024; 39:618-619. [PMID: 38224676 DOI: 10.1111/jgh.16455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/11/2023] [Indexed: 01/17/2024]
Affiliation(s)
- N Wakabayashi
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - R Kimura
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - M Kuwatani
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan
| | - A Matsui
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - N Ino
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Sapporo, Japan
- Department of Surgical Pathology, Hokkaido University Hospital, Sapporo, Japan
| | - T Mitsuhashi
- Department of Surgical Pathology, Hokkaido University Hospital, Sapporo, Japan
| | - K Kishi
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan
| | - S Tsuneta
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - J Nakagawa
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - N Nishioka
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - K Sakamoto
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - F Kato
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - A Shimizu
- Department of Surgical Pathology, Hokkaido University Hospital, Sapporo, Japan
| | - S Hirano
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - K Kudo
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
- Department of Diagnostic Imaging, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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3
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Kudo K, Greer YE, Yoshida T, Harrington BS, Korrapati S, Shibuya Y, Henegar L, Kopp JB, Fujii T, Lipkowitz S, Annunziata CM. Dual-inhibition of NAMPT and PAK4 induces anti-tumor effects in 3D-spheroids model of platinum-resistant ovarian cancer. Cancer Gene Ther 2024:10.1038/s41417-024-00748-w. [PMID: 38424218 DOI: 10.1038/s41417-024-00748-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/02/2024] [Accepted: 02/09/2024] [Indexed: 03/02/2024]
Abstract
Ovarian cancer follows a characteristic progression pattern, forming multiple tumor masses enriched with cancer stem cells (CSCs) within the abdomen. Most patients develop resistance to standard platinum-based drugs, necessitating better treatment approaches. Targeting CSCs by inhibiting NAD+ synthesis has been previously explored. Nicotinamide phosphoribosyltransferase (NAMPT), which is the rate limiting enzyme in the salvage pathway for NAD+ synthesis is an attractive drug target in this pathway. KPT-9274 is an innovative drug targeting both NAMPT and p21 activated kinase 4 (PAK4). However, its effectiveness against ovarian cancer has not been validated. Here, we show the efficacy and mechanisms of KPT-9274 in treating 3D-cultured spheroids that are resistant to platinum-based drugs. In these spheroids, KPT-9274 not only inhibited NAD+ production in NAMPT-dependent cell lines, but also suppressed NADPH and ATP production, indicating reduced mitochondrial function. It also downregulated of inflammation and DNA repair-related genes. Moreover, the compound reduced PAK4 activity by altering its mostly cytoplasmic localization, leading to NAD+-dependent decreases in phosphorylation of S6 Ribosomal protein, AKT, and β-Catenin in the cytoplasm. These findings suggest that KPT-9274 could be a promising treatment for ovarian cancer patients who are resistant to platinum drugs, emphasizing the need for precision medicine to identify the specific NAD+ producing pathway that a tumor relies upon before treatment.
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Affiliation(s)
- Kei Kudo
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
- Department of Obstetrics and Gynecology, Division of Gynecology Oncology, Tohoku University School of Medicine, Miyagi, Japan
| | - Yoshimi Endo Greer
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Teruhiko Yoshida
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Brittney S Harrington
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Soumya Korrapati
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Yusuke Shibuya
- Department of Obstetrics and Gynecology, Division of Gynecology Oncology, Tohoku University School of Medicine, Miyagi, Japan
| | | | - Jeffrey B Kopp
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Takeo Fujii
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Stanley Lipkowitz
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Christina M Annunziata
- Women's Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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4
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Nomura M, Ohuchi M, Sakamoto Y, Kudo K, Yaku K, Soga T, Sugiura Y, Morita M, Hayashi K, Miyahara S, Sato T, Yamashita Y, Ito S, Kikuchi N, Sato I, Saito R, Yaegashi N, Fukuhara T, Yamada H, Shima H, Nakayama KI, Hirao A, Kawasaki K, Arai Y, Akamatsu S, Tanuma SI, Sato T, Nakagawa T, Tanuma N. Niacin restriction with NAMPT-inhibition is synthetic lethal to neuroendocrine carcinoma. Nat Commun 2023; 14:8095. [PMID: 38092728 PMCID: PMC10719245 DOI: 10.1038/s41467-023-43630-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023] Open
Abstract
Nicotinamide phosphoribosyltransferase (NAMPT) plays a major role in NAD biosynthesis in many cancers and is an attractive potential cancer target. However, factors dictating therapeutic efficacy of NAMPT inhibitors (NAMPTi) are unclear. We report that neuroendocrine phenotypes predict lung and prostate carcinoma vulnerability to NAMPTi, and that NAMPTi therapy against those cancers is enhanced by dietary modification. Neuroendocrine differentiation of tumor cells is associated with down-regulation of genes relevant to quinolinate phosphoribosyltransferase-dependent de novo NAD synthesis, promoting NAMPTi susceptibility in vitro. We also report that circulating nicotinic acid riboside (NAR), a non-canonical niacin absent in culture media, antagonizes NAMPTi efficacy as it fuels NAMPT-independent but nicotinamide riboside kinase 1-dependent NAD synthesis in tumors. In mouse transplantation models, depleting blood NAR by nutritional or genetic manipulations is synthetic lethal to tumors when combined with NAMPTi. Our findings provide a rationale for simultaneous targeting of NAR metabolism and NAMPT therapeutically in neuroendocrine carcinoma.
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Affiliation(s)
- Miyuki Nomura
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Mai Ohuchi
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Yoshimi Sakamoto
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Kei Kudo
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
- Department of Biochemical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keisuke Yaku
- Department of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Yuki Sugiura
- Center for Cancer Immunotherapy and Immunobiology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Mami Morita
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Kayoko Hayashi
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Shuko Miyahara
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
- Department of Biochemical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Taku Sato
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Yoji Yamashita
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Shigemi Ito
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Naohiko Kikuchi
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Ikuro Sato
- Department of Pathology, Miyagi Cancer Center Hospital, Natori, Japan
| | - Rintaro Saito
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tatsuro Fukuhara
- Department of Respiratory Medicine, Miyagi Cancer Center Hospital, Natori, Japan
| | - Hidekazu Yamada
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Hiroshi Shima
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Keiichi I Nakayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyusyu University, Fukuoka, Japan
- TMDU Advanced Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Atsushi Hirao
- Division of Molecular Genetics, Cancer and Stem Cell Research Program, Cancer Research Institute and WPI Nano Life Science Institute, Kanazawa University, Kanazawa, Japan
| | - Kenta Kawasaki
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yoichi Arai
- Department of Urology, Miyagi Cancer Center Hospital, Natori, Japan
| | - Shusuke Akamatsu
- Department of Urology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Sei-Ichi Tanuma
- Meikai University Research Institute of Odontology, Sakado, Japan
- University of Human Arts and Sciences, Saitama, Japan
| | - Toshiro Sato
- Department of Organoid Medicine, Keio University School of Medicine, Tokyo, Japan
- Department of Integrated Medicine and Biochemistry, Keio University School of Medicine, Tokyo, Japan
| | - Takashi Nakagawa
- Department of Molecular and Medical Pharmacology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Nobuhiro Tanuma
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan.
- Department of Biochemical Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan.
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5
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Tomassucci G, Tortora L, Pugliese GM, Stramaglia F, Simonelli L, Marini C, Terashima K, Wakita T, Ayukawa S, Yokoya T, Kudo K, Nohara M, Mizokawa T, Saini NL. Temperature dependent local inhomogeneity and magnetic moments of (Li 1-xFe x)OHFeSe superconductors. Phys Chem Chem Phys 2023; 25:6684-6692. [PMID: 36806473 DOI: 10.1039/d3cp00004d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We have combined the extended X-ray absorption fine structure (EXAFS) and X-ray emission spectroscopy (XES) to investigate the local structure and the local iron magnetic moments of (Li1-xFex)OHFeSe (x∼0.2) superconductors. The local structure, studied by Fe K-edge EXAFS measurements, is found to be inhomogeneous that is characterized by different Fe-Se bond lengths. The inhomogeneous phase exhibits a peculiar temperature dependence with lattice anomalies in the local structural parameters at the critical temperature Tc (36 K) and at the spin density wave (SDW) transition temperature TN (130 K). Fe Kβ XES shows iron to be in a low spin state with the local Fe magnetic moment evolving anomalously as a function of temperature. Apart from a quantitative measurement of the local structure of (Li1-xFex)OHFeSe, providing direct evidence of nanoscale inhomogeneity, the results provide further evidence of the vital role that the coupled electronic, lattice and magnetic degrees of freedom play in the iron-based superconductors.
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Affiliation(s)
- G Tomassucci
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - P. le Aldo Moro 2, 00185 Roma, Italy.
| | - L Tortora
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - P. le Aldo Moro 2, 00185 Roma, Italy.
| | - G M Pugliese
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - P. le Aldo Moro 2, 00185 Roma, Italy.
| | - F Stramaglia
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - P. le Aldo Moro 2, 00185 Roma, Italy. .,Microscopy and Magnetism Group, Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
| | - L Simonelli
- CELLS - ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290, Cerdanyola del Valles, Barcelona, Spain
| | - C Marini
- CELLS - ALBA Synchrotron Radiation Facility, Carrer de la Llum 2-26, 08290, Cerdanyola del Valles, Barcelona, Spain
| | - K Terashima
- Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama 700-8530, Japan.,National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, Japan
| | - T Wakita
- Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama 700-8530, Japan
| | - S Ayukawa
- Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama 700-8530, Japan
| | - T Yokoya
- Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama 700-8530, Japan
| | - K Kudo
- Department of Physics, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - M Nohara
- Department of Quantum Matter, Hiroshima University, Hiroshima 739-8530, Japan
| | - T Mizokawa
- Department of Applied Physics, Waseda University, Tokyo 169-8555, Japan
| | - N L Saini
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - P. le Aldo Moro 2, 00185 Roma, Italy.
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Shibuya Y, Kudo K, Zeligs KP, Anderson D, Hernandez L, Ning F, Cole CB, Fergusson M, Kedei N, Lyons J, Taylor J, Korrapati S, Annunziata CM. SMAC Mimetics Synergistically Cooperate with HDAC Inhibitors Enhancing TNF-α Autocrine Signaling. Cancers (Basel) 2023; 15:cancers15041315. [PMID: 36831656 PMCID: PMC9954505 DOI: 10.3390/cancers15041315] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/06/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
The overexpression of inhibitor of apoptosis (IAP) proteins is strongly related to poor survival of women with ovarian cancer. Recurrent ovarian cancers resist apoptosis due to the dysregulation of IAP proteins. Mechanistically, Second Mitochondrial Activator of Caspases (SMAC) mimetics suppress the functions of IAP proteins to restore apoptotic pathways resulting in tumor death. We previously conducted a phase 2 clinical trial of the single-agent SMAC mimetic birinapant and observed minimal drug response in women with recurrent ovarian cancer despite demonstrating on-target activity. Accordingly, we performed a high-throughput screening matrix to identify synergistic drug combinations with birinapant. SMAC mimetics in combination with an HDAC inhibitor showed remarkable synergy and was, therefore, selected for further evaluation. We show here that this synergy observed both in vitro and in vivo results from multiple convergent pathways to include increased caspase activation, HDAC inhibitor-mediated TNF-α upregulation, and alternative NF-kB signaling. These findings provide a rationale for the integration of SMAC mimetics and HDAC inhibitors in clinical trials for recurrent ovarian cancer where treatment options are still limited.
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Affiliation(s)
- Yusuke Shibuya
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Department of Obstetrics and Gynecology, Division of Gynecology Oncology, Tohoku University School of Medicine, Miyagi 980-8574, Japan
| | - Kei Kudo
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Department of Obstetrics and Gynecology, Division of Gynecology Oncology, Tohoku University School of Medicine, Miyagi 980-8574, Japan
| | - Kristen P. Zeligs
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Gynecologic Cancer Center of Excellence, Department of Obstetrics and Gynecology, Uniformed Services University and Walter Reed National Military Medical Center, Bethesda, MD 20814, USA
- Department of Obstetrics, Gynecology and Reproductive Science, Division of Gynecologic Oncology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - David Anderson
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Gynecologic Cancer Center of Excellence, Department of Obstetrics and Gynecology, Uniformed Services University and Walter Reed National Military Medical Center, Bethesda, MD 20814, USA
| | - Lidia Hernandez
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Franklin Ning
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Christopher B. Cole
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Maria Fergusson
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Noemi Kedei
- Collaborative Protein Technology Resource, MD 20814, USA
| | | | - Jason Taylor
- Astex Pharmaceuticals, Pleasanton, CA 94588, USA
| | - Soumya Korrapati
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Christina M. Annunziata
- Women’s Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
- Correspondence: ; Tel.: +1-240-760-6125
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Choirunnisa AR, Arima K, Abe Y, Kagaya N, Kudo K, Suenaga H, Hashimoto J, Fujie M, Satoh N, Shin-ya K, Matsuda K, Wakimoto T. New azodyrecins identified by a genome mining-directed reactivity-based screening. Beilstein J Org Chem 2022; 18:1017-1025. [PMID: 36051562 PMCID: PMC9379638 DOI: 10.3762/bjoc.18.102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/29/2022] [Indexed: 11/23/2022] Open
Abstract
Only a few azoxy natural products have been identified despite their intriguing biological activities. Azodyrecins D–G, four new analogs of aliphatic azoxides, were identified from two Streptomyces species by a reactivity-based screening that targets azoxy bonds. A biological activity evaluation demonstrated that the double bond in the alkyl side chain is important for the cytotoxicity of azodyrecins. An in vitro assay elucidated the tailoring step of azodyrecin biosynthesis, which is mediated by the S-adenosylmethionine (SAM)-dependent methyltransferase Ady1. This study paves the way for the targeted isolation of aliphatic azoxy natural products through a genome-mining approach and further investigations of their biosynthetic mechanisms.
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Affiliation(s)
| | - Kuga Arima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Yo Abe
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Noritaka Kagaya
- Technology Research Association for Next Generation Natural Products Chemistry, Tokyo 135-0064, Japan
| | - Kei Kudo
- National Institute of Advanced Industrial Science and Technology (AIST), Tokyo 135-0064, Japan
| | - Hikaru Suenaga
- National Institute of Advanced Industrial Science and Technology (AIST), Tokyo 135-0064, Japan
| | - Junko Hashimoto
- Japan Biological Informatics Consortium (JBIC), Tokyo 135-0064, Japan
| | - Manabu Fujie
- Okinawa Institute of Science and Technology Graduate University, Okinawa, 904-0495, Japan
| | - Noriyuki Satoh
- Okinawa Institute of Science and Technology Graduate University, Okinawa, 904-0495, Japan
| | - Kazuo Shin-ya
- National Institute of Advanced Industrial Science and Technology (AIST), Tokyo 135-0064, Japan
| | - Kenichi Matsuda
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
- Global Station for Biosurfaces and Drug Discovery, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo 060-0812, Japan
| | - Toshiyuki Wakimoto
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
- Global Station for Biosurfaces and Drug Discovery, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo 060-0812, Japan
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8
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Yoshimura T, Nishioka K, Hashimoto T, Kogame S, Seki K, Sugimori H, Yamashina H, Kato F, Aoyama H, Kudo K, Shimizu S. Evaluation of Visualizing the Prostatic Urinary Tract in MRI With a Super Resolution Deep Learning Model for Urethra Sparing Radiotherapy. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Kudo K, Nishimura T, Kozone I, Hashimoto J, Kagaya N, Suenaga H, Ikeda H, Shin-Ya K. Hemiacetal-less rapamycin derivatives designed and produced by genetic engineering of a type I polyketide synthase. Sci Rep 2021; 11:9944. [PMID: 33976244 PMCID: PMC8113240 DOI: 10.1038/s41598-021-88583-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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 04/14/2021] [Indexed: 11/09/2022] Open
Abstract
Engineering polyketide synthases is one of the most promising ways of producing a variety of polyketide derivatives. Exploring the undiscovered chemical space of this medicinally important class of middle molecular weight natural products will aid in the development of improved drugs in the future. In previous work, we established methodology designated 'module editing' to precisely manipulate polyketide synthase genes cloned in a bacterial artificial chromosome. Here, in the course of investigating the engineering capacity of the rapamycin PKS, novel rapamycin derivatives 1-4, which lack the hemiacetal moiety, were produced through the heterologous expression of engineered variants of the rapamycin PKS. Three kinds of module deletions in the polyketide synthase RapC were designed, and the genetically engineered vectors were prepared by the in vitro module editing technique. Streptomyces avermitilis SUKA34 transformed with these edited PKSs produced new rapamycin derivatives. The planar structures of 1-4 established based on 1D and 2D NMR, ESI-TOF-MS and UV spectra revealed that 2 and 3 had skeletons well-matched to the designs, but 1 and 4 did not. The observations provide important insights into the mechanisms of the later steps of rapamycin skeletal formation as well as the ketone-forming oxygenase RapJ.
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Affiliation(s)
- Kei Kudo
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, Japan
| | - Takehiro Nishimura
- Technology Research Association for Next Generation Natural Products Chemistry, 2-4-7 Aomi, Koto-ku, Tokyo, Japan
| | - Ikuko Kozone
- Japan Biological Informatics Consortium (JBIC), 2-4-32 Aomi, Koto-ku, Tokyo, Japan
| | - Junko Hashimoto
- Japan Biological Informatics Consortium (JBIC), 2-4-32 Aomi, Koto-ku, Tokyo, Japan
| | - Noritaka Kagaya
- Japan Biological Informatics Consortium (JBIC), 2-4-32 Aomi, Koto-ku, Tokyo, Japan
| | - Hikaru Suenaga
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, Japan
| | - Haruo Ikeda
- Kitasato Institute for Life Sciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa, Japan
| | - Kazuo Shin-Ya
- National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo, Japan. .,Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, Japan.
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10
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Liu C, Hashimoto J, Kudo K, Shin-Ya K, Kakeya H. An Atypical Arginine Dihydrolase Involved in the Biosynthesis of Cyclic Hexapeptide Longicatenamides. Chem Asian J 2021; 16:1382-1387. [PMID: 33886165 DOI: 10.1002/asia.202100181] [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: 02/21/2021] [Revised: 04/02/2021] [Indexed: 11/07/2022]
Abstract
The incorporation of non-proteinogenic amino acids (NPAAs) enriches the structural diversity of nonribosomal peptides. Recently, four NPAA-containing cyclic hexapeptides, longicatenamides A-D, were isolated using a combined-culture strategy. Based on in silico analysis, we discovered their putative biosynthetic gene cluster (lon) and proposed a possible biosynthetic mechanism. Surprisingly, the lon22 gene encodes an atypical arginine dihydrolase, which can also catalyze the hydrolysis of citrulline to ornithine. Phylogenetic analysis showed that Lon22-like proteins form a novel clade that is separated from other guanidine-modifying enzymes. After rational design, the catalytic efficiencies of a Lon22 Y80F mutant for arginine and citrulline substrates were 2.31- and 4.70-fold that of the wild-type (WT), respectively. In addition, characterization of the Lon20-A4 adenylation domain suggested that it can incorporate both ornithine and lysine into the final products.
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Affiliation(s)
- Chao Liu
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo-ku, Kyoto, 606-8501, Japan
| | - Junko Hashimoto
- Japan Biological Informatics Consortium, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Kei Kudo
- National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Kazuo Shin-Ya
- National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Hideaki Kakeya
- Department of System Chemotherapy and Molecular Sciences, Division of Bioinformatics and Chemical Genomics, Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo-ku, Kyoto, 606-8501, Japan
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11
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Ueoka R, Hashimoto J, Kozone I, Hashimoto T, Kudo K, Kagaya N, Suenaga H, Ikeda H, Shin-Ya K. A novel methymycin analog, 12-ketomethymycin N-oxide, produced by the heterologous expression of the large pikromycin/methymycin biosynthetic gene cluster of Streptomyces sp. AM4900. Biosci Biotechnol Biochem 2021; 85:890-894. [PMID: 33590846 DOI: 10.1093/bbb/zbaa111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 12/11/2020] [Indexed: 11/13/2022]
Abstract
A novel methymycin analog, 12-ketomethymycin N-oxide, was produced by the heterologous expression of the pikromycin/methymycin biosynthetic gene cluster of Streptomyces sp. AM4900 together with 12-ketomethymycin, which was only isolated by the biotransformation of the synthetic intermediate before. Their structures were determined by the spectroscopic data and the chemical derivatization. 12-Ketomethymycin showed a weak cytotoxicity against SKOV-3 and Jurkat cells, although its N-oxide analog did not show any activity. Both showed no antibacterial activities against Escherichia coli and Micrococcus luteus.
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Affiliation(s)
- Reiko Ueoka
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Junko Hashimoto
- Japan Biological Informatics Consortium (JBIC), Tokyo, Japan
| | - Ikuko Kozone
- Japan Biological Informatics Consortium (JBIC), Tokyo, Japan
| | - Takuya Hashimoto
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Kei Kudo
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Noritaka Kagaya
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Hikaru Suenaga
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | - Haruo Ikeda
- Kitasato Institute for Life Sciences, Kitasato University, Kanagawa, Japan
| | - Kazuo Shin-Ya
- National Institute of Advanced Industrial Science and Technology, Tokyo, Japan.,Biotechnology Research Center, The University of Tokyo, Tokyo, Japan
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12
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Morita M, Kudo K, Shima H, Tanuma N. Dietary intervention as a therapeutic for cancer. Cancer Sci 2020; 112:498-504. [PMID: 33340176 PMCID: PMC7893991 DOI: 10.1111/cas.14777] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/25/2020] [Accepted: 12/13/2020] [Indexed: 12/22/2022] Open
Abstract
Cancer metabolism is influenced by availability of nutrients in the microenvironment and can to some extent be manipulated by dietary modifications that target oncogenic metabolism. As yet, few dietary interventions have been scientifically proven to mitigate disease progression or enhance any other kind of therapy in human cancer. However, recent advances in the understanding of cancer metabolism enable us to predict or devise effective dietary interventions that might antagonize tumor growth. In fact, evidence emerging from preclinical models suggests that appropriate combinations of specific cancer therapies with dietary interventions could critically impact therapeutic efficacy. Here, we review the potential benefits of precision nutrition approaches in augmenting the efficacy of cancer treatment.
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Affiliation(s)
- Mami Morita
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Kei Kudo
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Hiroshi Shima
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Nobuhiro Tanuma
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
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13
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Hamano S, Nishima D, Satake M, Kudo K, Yanagita K, Tezuka J. Recurrent Immediate Type Hypersensitivity Reaction Induced by Macrogol in a 3-Year-Old Boy. J Investig Allergol Clin Immunol 2020; 30:72-73. [PMID: 32077856 DOI: 10.18176/jiaci.0447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- S Hamano
- Division of Allergy and Pulmonology, Fukuoka Children's Hospital, Fukuoka, Japan.,Department of Pediatrics, Kyorin University School of Medicine, Tokyo, Japan
| | - D Nishima
- Division of Allergy and Pulmonology, Fukuoka Children's Hospital, Fukuoka, Japan
| | - M Satake
- Division of Dermatology, Fukuoka Children's Hospital, Fukuoka, Japan
| | - K Kudo
- Division of Dermatology, Fukuoka Children's Hospital, Fukuoka, Japan
| | - K Yanagita
- Division of Pediatric Dentistry, Fukuoka Children's Hospital, Fukuoka, Japan
| | - J Tezuka
- Division of Allergy and Pulmonology, Fukuoka Children's Hospital, Fukuoka, Japan
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14
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Tsuneta S, Oyama-Manabe N, Harada T, Manabe O, Hirata K, Koyanagawa K, Naya M, Kudo K. Texture Analysis Of Delayed Contrast-enhanced Computed Tomography To Differentiate Cardiac Sarcoidosis. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Shima T, Fujima N, Yamano S, Kudo K, Hirata K, Minowa K. Evaluation of non-Gaussian model-based diffusion-weighted imaging in oral squamous cell carcinoma: comparison with tumour functional information derived from positron-emission tomography. Clin Radiol 2020; 75:397.e15-397.e21. [PMID: 31987487 DOI: 10.1016/j.crad.2019.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 12/23/2019] [Indexed: 10/25/2022]
Abstract
AIM To evaluate and compare diffusion-weighted imaging (DWI) parameters derived from a non-Gaussian fitting model and positron-emission tomography (PET) parameters derived from 18F-fluoromisonidazole-PET (FMISO-PET) in patients with oral squamous cell carcinoma (OSCC). MATERIALS AND METHODS Primary sites were evaluated prospectively in 18 patients. DWI was performed using six b-values (0-2,500). Diffusion-related parameters of kurtosis value (K), the kurtosis-corrected diffusion coefficient (DK), diffusion heterogeneity (α), distributed diffusion coefficient (DDC), the slow diffusion coefficient (Dslow), and the apparent diffusion coefficient (ADC) were calculated from four diffusion-fitting models. Maximal standardised uptake values (SUVmax), mean standardised uptake values (SUVmean), and the tumour-to-muscle ration (TMR) of the SUV value were calculated for FMISO-PET. Spearman's correlation coefficient was used to evaluate the correlation between each non-Gaussian diffusion model parameters and PET parameter. RESULTS There was moderate correlation between FMISO-PET SUVmax and Dslow (ρ=-0.45, p=0.06). In addition, there was good correlation between TMRmax and five non-Gaussian diffusion model parameters (K: ρ=0.65, p=0.004, DK: ρ=-0.72, p=0.0008, DDC: ρ=-0.75, p=0.0003, ADC: ρ=-0.74, p=0.0005, and Dslow: ρ= -0.65, p=0.003), and between TMRmean and five non-Gaussian model parameters (K: ρ=0.64, p=0.005, DK: ρ=-0.61, p=0.007, DDC: ρ=-0.63, p=0.005, ADC: ρ=-0.61, p=0.007, and Dslow: ρ=-0.56, p=0.015). CONCLUSION Non-Gaussian diffusion model parameters can be related to tumour hypoxia.
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Affiliation(s)
- T Shima
- Radiology, Department of Oral Pathobiological Science, Division of Oral Medical Science, Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo, 060-8586, Japan
| | - N Fujima
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - S Yamano
- Radiology, Department of Oral Pathobiological Science, Division of Oral Medical Science, Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo, 060-8586, Japan
| | - K Kudo
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - K Hirata
- Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - K Minowa
- Radiology, Department of Oral Pathobiological Science, Division of Oral Medical Science, Graduate School of Dental Medicine, Hokkaido University, Kita 13, Nishi 7, Kita-ku, Sapporo, 060-8586, Japan.
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16
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Kudo K, Nomura M, Sakamoto Y, Ito S, Morita M, Kawai M, Yamashita Y, Ito K, Yamada H, Shima H, Yaegashi N, Tanuma N. Divergent metabolic responses dictate vulnerability to NAMPT inhibition in ovarian cancer. FEBS Lett 2020; 594:1379-1388. [PMID: 31950503 DOI: 10.1002/1873-3468.13736] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/18/2019] [Accepted: 01/13/2020] [Indexed: 01/15/2023]
Abstract
It is of current interest to target cancer metabolism as treatment for many malignancies, including ovarian cancer (OVC), in which few druggable driver mutations have been identified. Nicotinamide phosphoribosyltransferase (NAMPT), a rate-limiting enzyme in the NAD salvage pathway, is a potential therapeutic target in OVC. However, factors that determine responsiveness to NAMPT inhibition are not fully understood. Here, we report that OVC cell lines can be divided into subgroups exhibiting NAMPT-dependent or NAMPT-independent glycolysis, and these metabolic differences correlate with vulnerability to NAMPT inhibition. Interestingly, cells showing NAMPT-dependent glycolysis were enriched in a group of cells lacking BRCA1/2 gene mutations. Our findings suggest the importance of selecting appropriate patients for NAMPT-targeting therapy in OVC.
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Affiliation(s)
- Kei Kudo
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan.,Department of Gynecology, Tohoku University Graduate school of Medicine, Sendai, Japan
| | - Miyuki Nomura
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Yoshimi Sakamoto
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Shigemi Ito
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Mami Morita
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Masaaki Kawai
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Yoji Yamashita
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Kiyoshi Ito
- Department of Gynecology, Tohoku University Graduate school of Medicine, Sendai, Japan
| | - Hidekazu Yamada
- Division of Gynecology, Miyagi Cancer Center Hospital, Natori, Japan
| | - Hiroshi Shima
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
| | - Nobuo Yaegashi
- Department of Gynecology, Tohoku University Graduate school of Medicine, Sendai, Japan
| | - Nobuhiro Tanuma
- Division of Cancer Chemotherapy, Miyagi Cancer Center Research Institute, Natori, Japan
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17
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Baba K, Tanaka H, Fujita Y, Nakamura A, Kikuchi E, Kawai Y, Harada T, Watanabe N, Yokouchi H, Usui K, Saito R, Watanabe H, Masuda T, Fukuhara T, Kudo K, Honda R, Oizimi S, Maemondo M, Inoue A, Morikawa N. A randomized, phase II study comparing irinotecan versus amrubicin as maintenance therapy after first-line induction therapy for extensive disease small cell lung cancer (HOT1401/NJLCG1401). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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18
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Yokoyama T, Ninomiya K, Oze I, Hata T, Tanaka A, Bessho A, Hosokawa S, Kuyama S, Kudo K, Kozuki T, Harada D, Yasugi M, Murakami T, Nakanishi M, Takigawa N, Katsui K, Maeda Y, Hotta K, Kiura K. A randomized trial of sodium alginate prevention of radiation-induced esophagitis in patients with locally advanced NSCLC receiving concurrent chemoradiotherapy: OLCSG1401. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz265.052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Ota T, Fukui T, Nakahara Y, Takeda T, Uchino J, Mouri T, Kudo K, Nakajima S, Suzumura T, Okabe T, Hayashi H, Miyatake N, Nakano Y, Terashima M, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. P1.04-40 Serum Perforin Levels During the First Cycle of Anti-PD-1 Antibody Therapies in Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Ninomiya T, Nogami N, Kozuki T, Harada D, Kubo T, Ohashi K, Kuyama S, Kudo K, Bessho A, Fujimoto N, Aoe K, Shibayama T, Minami D, Sugimoto K, Ochi N, Takigawa N, Hotta K, Kiura K. Updated analysis of a phase I trial of afatinib (Afa) and bevacizumab (Bev) in chemo-naïve patients (pts) with advanced non-small cell lung cancer (NSCLC) harboring EGFR-mutations: OLCSG1404. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Kudo K, Koiwai H, Kagaya N, Nishiyama M, Kuzuyama T, Shin-ya K, Ikeda H. Comprehensive Derivatization of Thioviridamides by Heterologous Expression. ACS Chem Biol 2019; 14:1135-1140. [PMID: 31184470 DOI: 10.1021/acschembio.9b00330] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New technology for the derivatization of peptide natural products is required for drug development. Despite the recent advances in the genome sequencing technique enabling us to search for the biosynthetic genes for wide variety of natural products, the technical methods to get access to them are limited. A class of RiPPs, a recently emerged natural product family such as thioviridamide, is one of those possessing such unexplored chemical space. In this paper, we report a streamlined method to generate new thioviridamide derivatives and to assess their biological activities. Heterologous expression of 42 constructs in an engineered Streptomyces avermitilis host gave 35 designed thioviridamide derivatives, along with several unprecedented analogues. Moreover, cytotoxicity assay revealed that several derivatives showed more potent activities than those of prethioviridamide. These results indicate that this strategy can become one of the potential ways to produce supreme unnatural products.
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Affiliation(s)
- Kei Kudo
- National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Hanae Koiwai
- Kitasato Institute for Life Sciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Noritaka Kagaya
- National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
| | - Makoto Nishiyama
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Tomohisa Kuzuyama
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Kazuo Shin-ya
- National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo, 135-0064, Japan
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Haruo Ikeda
- Kitasato Institute for Life Sciences, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
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22
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Kimura K, Kudo K, Kurihara T, Yoshiya S, Mano Y, Takeishi K, Itoh S, Harada N, Ikegami T, Yoshizumi T, Ikeda T. Rendezvous Technique Using Double Balloon Endoscope for Removal of Multiple Intrahepatic Bile Duct Stones in Hepaticojejunostomy After Living Donor Liver Transplant: A Case Report. Transplant Proc 2018; 51:579-584. [PMID: 30879594 DOI: 10.1016/j.transproceed.2018.12.005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 12/09/2018] [Indexed: 02/08/2023]
Abstract
Cholangitis is a major complication following transplantation. We report a living donor liver transplant (LDLT) patient with cholangitis due to multiple stones in the intrahepatic bile duct during hepaticojejunostomy anastomosis, who was successfully treated with the rendezvous technique using double balloon endoscope. A 64-year-old woman underwent LDLT with right lobe graft and hepaticojejunostomy for Wilson disease. There was bile leakage with biliary peritonitis, which was treated conservatively after transplant. Two years after surgery, she developed reiterated cholangitis due to stenosis of hepaticojejunostomy anastomosis and multiple stones in the intrahepatic bile ducts. Percutaneous transhepatic biliary drainage was performed. The size of the drainage tube was increased, and the anastomotic area was dilated in a stepwise manner using a balloon catheter. The stones were crushed and lithotomy was performed using electronic hydraulic lithotripsy through cholangioscopy. Finally, lithotomy was performed for the remaining stones through endoscopic retrograde cholangiography with the rendezvous technique using the double balloon endoscope. Rendezvous approach with percutaneous transhepatic biliary drainage and double balloon endoscopic retrograde cholangiography was an effective treatment for the multiple intrahepatic stones in hepaticojejunostomy following LDLT with right lobe graft.
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Affiliation(s)
- K Kimura
- Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka, Japan; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - K Kudo
- Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka, Japan; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Kurihara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Yoshiya
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Mano
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Takeishi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Itoh
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Harada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Ikegami
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Yoshizumi
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Ikeda
- Department of Endoscopy and Endoscopic Surgery, Fukuoka Dental College, Fukuoka, Japan; Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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23
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Sakurai T, Kimura S, Kimata M, Nojiri H, Awaji S, Okubo S, Ohta H, Uwatoko Y, Kudo K, Koike Y. Development and application of 2.5 GPa-25 T high-pressure high-field electron spin resonance system using a cryogen-free superconducting magnet. J Magn Reson 2018; 296:1-4. [PMID: 30165264 DOI: 10.1016/j.jmr.2018.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/20/2018] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
We have developed a high-pressure electron spin resonance probe and successfully installed into the world's highest-field cryogen-free superconducting magnet having a maximum central field of 24.6 T. The high pressure of 2.5 GPa is achieved by the specially designed piston-cylinder pressure cell using THz-wave-transparent components. In the first application of this high-pressure high-field ESR system, we observed that the orthogonal dimer spin system SrCu2(BO3)2 undergoes a quantum phase transition from the dimer singlet ground to the plaquette singlet ground states.
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Affiliation(s)
- T Sakurai
- Research Facility Center for Science and Technology, Kobe University, Nada, Kobe 657-8501, Japan.
| | - S Kimura
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - M Kimata
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - H Nojiri
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - S Awaji
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - S Okubo
- Molecular Photoscience Research Center, Kobe University, Nada, Kobe 657-8501, Japan
| | - H Ohta
- Molecular Photoscience Research Center, Kobe University, Nada, Kobe 657-8501, Japan
| | - Y Uwatoko
- Institute for Solid State Physics, University of Tokyo, Chiba 277-8581, Japan
| | - K Kudo
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - Y Koike
- Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan
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Kubo T, Watanabe H, Ninomiya K, Kudo K, Minami D, Murakami E, Ochi N, Ninomiya T, Harada D, Yasugi M, Ichihara E, Ohashi K, Fujiwara K, Hotta K, Tabata M, Maeda Y, Kiura K. Immune checkpoint inhibitor efficacy and safety in elderly non-small cell lung cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Ota T, Takeda T, Fukui T, Nakahara Y, Kudo K, Okabe T, Hayashi H, Otani S, Hiyoshi Y, Yonesaka K, Sugiura T, Suzumura T, Terashima M, Nakano Y, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. Serum biomarkers during the first cycle of anti-PD-1 antibody therapies in non-small cell lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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26
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Fujima N, Hirata K, Shiga T, Li R, Yasuda K, Onimaru R, Tsuchiya K, Kano S, Mizumachi T, Homma A, Kudo K, Shirato H. Integrating quantitative morphological and intratumoural textural characteristics in FDG-PET for the prediction of prognosis in pharynx squamous cell carcinoma patients. Clin Radiol 2018; 73:1059.e1-1059.e8. [PMID: 30245069 DOI: 10.1016/j.crad.2018.08.011] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/24/2018] [Indexed: 12/15/2022]
Abstract
AIM To assess potential prognostic factors in pharynx squamous cell carcinoma (SCC) patients by quantitative morphological and intratumoural characteristics obtained by 2-[18F]-fluoro-2-deoxy-d-glucose positron-emission tomography/computed tomography (FDG-PET/CT). MATERIALS AND METHODS The cases of 54 patients with pharynx SCC who underwent chemoradiation therapy were analysed retrospectively. Using their FDG-PET data, the quantitative morphological and intratumoural characteristics of 14 parameters were calculated. The progression-free survival (PFS) and overall survival (OS) information was obtained from patient medical records. Univariate and multivariate analyses were performed to assess the 14 quantitative parameters as well as the T-stage, N-stage, and tumour location data for their relation to PFS and OS. When an independent predictor was suggested in the multivariate analysis, the parameter was further assessed using the Kaplan-Meier method. RESULTS In the assessment of PFS, the univariate and multivariate analyses indicated the following as independent predictors: the texture parameter of homogeneity and the morphological parameter of sphericity. In the Kaplan-Meier analysis, the PFS rate was significantly improved in the patients who had both a higher value of homogeneity (p=0.01) and a higher value of sphericity (p=0.002). With the combined use of homogeneity and sphericity, the patients with different PFS rates could be divided more clearly. CONCLUSION The quantitative parameters of homogeneity and sphericity obtained by FDG-PET can be useful for the prediction of the PFS of pharynx SCC patients, especially when used in combination.
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Affiliation(s)
- N Fujima
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan.
| | - K Hirata
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Shiga
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Li
- Department of Radiation Oncology, Stanford University, 875 Blake Wilbur Drive, Stanford, CA 94305-5847, USA; The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan
| | - K Yasuda
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - R Onimaru
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Tsuchiya
- Department of Radiation Oncology, Otaru General Hospital, Wakamatsu1-1-1, Otaru 0478550, Japan
| | - S Kano
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - T Mizumachi
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - A Homma
- Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
| | - K Kudo
- Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, N14 W5, Kita-Ku, Sapporo 0608638, Japan
| | - H Shirato
- The Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education, N15 W8, Kita-Ku, Sapporo 0608638, Japan; Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, N15 W7, Kita-Ku, Sapporo 0608638, Japan
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Kumagai Y, Toyoshima M, Kudo K, Ohsawa M, Niikura H, Yaegashi N. Endoscopic examination of labial fusion in a postmenopausal woman: a case report. J Med Case Rep 2018; 12:26. [PMID: 29391072 PMCID: PMC5796510 DOI: 10.1186/s13256-018-1568-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 01/10/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Labial fusion is defined as adhesions of the labia minora or majora. Labial fusion may cause urinary retention. Surgical treatment based on an accurate anatomic assessment may be needed, but the usefulness of endoscopic examination for this disease has not been reported. CASE PRESENTATION A 76-year-old Japanese woman undergoing chemoradiation treatment for esophageal cancer was referred to our department for evaluation of high accumulation in the vagina on a positron emission tomography scan. On physical examination, her labia were noted to be extensively fused with a pinhole opening at the midline. Endoscopic examination revealed that her vagina was filled with urine and there were no abnormalities in her urethral meatus and cervix. The adhesions were separated under anesthesia and there has been no recurrence during follow-up. CONCLUSIONS We present a case of a postmenopausal patient with labial fusion who underwent successful surgical management. An endoscopic examination enabled us to determine the precise anatomic position and adopt a safe surgical procedure.
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Affiliation(s)
- Yusaku Kumagai
- Department of Obstetrics and Gynecology, Tohoku University Hospital, 1-1, Seiryo, Aoba, Sendai, Miyagi, 980-8574, Japan
| | - Masafumi Toyoshima
- Department of Obstetrics and Gynecology, Tohoku University Hospital, 1-1, Seiryo, Aoba, Sendai, Miyagi, 980-8574, Japan.
| | - Kei Kudo
- Department of Obstetrics and Gynecology, Tohoku University Hospital, 1-1, Seiryo, Aoba, Sendai, Miyagi, 980-8574, Japan
| | - Minoru Ohsawa
- Department of Obstetrics and Gynecology, Tohoku University Hospital, 1-1, Seiryo, Aoba, Sendai, Miyagi, 980-8574, Japan
| | - Hitoshi Niikura
- Department of Obstetrics and Gynecology, Tohoku University Hospital, 1-1, Seiryo, Aoba, Sendai, Miyagi, 980-8574, Japan
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Hospital, 1-1, Seiryo, Aoba, Sendai, Miyagi, 980-8574, Japan
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Tanizaki J, Haratani K, Hayashi H, Chiba Y, Yonesaka K, Kudo K, Kaneda H, Hasegawa Y, Tanaka K, Takeda M, Nakagawa K. P1.07-010 Peripheral Blood Biomarkers Associated with Clinical Outcome in Non–Small Cell Lung Cancer Patients Treated with Nivolumab. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Watanabe H, Kubo T, Kudo K, Minami D, Murakami T, Ochi N, Ninomiya T, Harada D, Yasugi M, Takeda H, Ichihara E, Ohashi K, Hotta K, Tabata M, Maeda Y, Kiura K. Impact of immune checkpoint inhibitors on subsequent chemotherapy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Harada D, Nogami N, Kozuki T, Ninomiya T, Bessho A, Kuyama S, Fujimoto N, Sugimoto K, Aoe K, Ochi N, Minami D, Fukamatsu N, Kudo K, Kiura K. A phase I trial of afatinib (Afa) and bevacizumab (Bev) in chemo-naïve patients (pts) with advanced non-small-cell lung cancer (NSCLC) harboring EGFR-mutations: OLCSG1404. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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31
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Kudo K, Kuyama S, Harada D, Kozuki T, Bessho A, Hotta K, Yoshioka H, Gemba K, Takigawa N, Oze I, Kiura K. P2.01-034 Phase I/II Trial of Weekly Nab-Paclitaxel as 2nd or 3rd Line Treatment in NSCLC Without Driver Mutations. (OLCSG1303). J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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32
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Ishida M, Sakata N, Ise I, Ono T, Shimura M, Ishii K, Murakami M, Takadate T, Aoki T, Kudo K, Ohnuma S, Fukase K, Ohtsuka H, Mizuma M, Hayashi H, Nakagawa K, Morikawa T, Motoi F, Naitoh T, Unno M. The comparative anatomy of the folds, fossae, and adhesions around the duodenojejunal flexure in mammals. Folia Morphol (Warsz) 2017; 77:286-292. [PMID: 29064554 DOI: 10.5603/fm.a2017.0089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 08/29/2017] [Accepted: 09/20/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Anatomical knowledge of the duodenojejunal flexure is necessary for abdominal surgeries, and also important for physiologic studies about the duodenum. But little is known about the anatomy of this region in mammals. Here, we examined comparative anatomy to understand the anatomical formation of the duodenojejunal flexure in mammals. MATERIALS AND METHODS The areas around the duonenojejunal flexure were ob-served in mouse, rat, dog, pig, and human, and the anatomical structures around the duodenojejunal junction in the animals were compared with those in human. RESULTS The superior and inferior duodenal folds, and the superior and inferior duodenal fossae were identified in all examined humans. In pig, the structures were not clearly identified because the duodenum strongly adhered to the retroperitoneum and to the mesocolon. In mouse, rat, and dog, only the plica duodenocolica, which is regarded as the animal counterpart of the superior duo-denal fold in human, was identified, and other folds or fossae were not observed, probably because the duodenum was not fixed to the parietal peritoneum in those animals. Transection of the plica duodenocolica could return the normally rotated intestine back to the state of non-rotation in rat. CONCLUSIONS This study showed the anatomical similarities and dissimilarities of the duodenojejunal flexure among the mammals. Anatomical knowledge of the area is useful for duodenal and pancreatic surgeries, and for animal studies about the duodenum. (Folia Morphol 2018; 77, 2: 286-292).
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Nomura JI, Uwano I, Sasaki M, Kudo K, Yamashita F, Ito K, Fujiwara S, Kobayashi M, Ogasawara K. Preoperative Cerebral Oxygen Extraction Fraction Imaging Generated from 7T MR Quantitative Susceptibility Mapping Predicts Development of Cerebral Hyperperfusion following Carotid Endarterectomy. AJNR Am J Neuroradiol 2017; 38:2327-2333. [PMID: 28982786 DOI: 10.3174/ajnr.a5390] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 07/18/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Preoperative hemodynamic impairment in the affected cerebral hemisphere is associated with the development of cerebral hyperperfusion following carotid endarterectomy. Cerebral oxygen extraction fraction images generated from 7T MR quantitative susceptibility mapping correlate with oxygen extraction fraction images on positron-emission tomography. The present study aimed to determine whether preoperative oxygen extraction fraction imaging generated from 7T MR quantitative susceptibility mapping could identify patients at risk for cerebral hyperperfusion following carotid endarterectomy. MATERIALS AND METHODS Seventy-seven patients with unilateral internal carotid artery stenosis (≥70%) underwent preoperative 3D T2*-weighted imaging using a multiple dipole-inversion algorithm with a 7T MR imager. Quantitative susceptibility mapping images were then obtained, and oxygen extraction fraction maps were generated. Quantitative brain perfusion single-photon emission CT was also performed before and immediately after carotid endarterectomy. ROIs were automatically placed in the bilateral middle cerebral artery territories in all images using a 3D stereotactic ROI template, and affected-to-contralateral ratios in the ROIs were calculated on quantitative susceptibility mapping-oxygen extraction fraction images. RESULTS Ten patients (13%) showed post-carotid endarterectomy hyperperfusion (cerebral blood flow increases of ≥100% compared with preoperative values in the ROIs on brain perfusion SPECT). Multivariate analysis showed that a high quantitative susceptibility mapping-oxygen extraction fraction ratio was significantly associated with the development of post-carotid endarterectomy hyperperfusion (95% confidence interval, 33.5-249.7; P = .002). Sensitivity, specificity, and positive- and negative-predictive values of the quantitative susceptibility mapping-oxygen extraction fraction ratio for the prediction of the development of post-carotid endarterectomy hyperperfusion were 90%, 84%, 45%, and 98%, respectively. CONCLUSIONS Preoperative oxygen extraction fraction imaging generated from 7T MR quantitative susceptibility mapping identifies patients at risk for cerebral hyperperfusion following carotid endarterectomy.
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Affiliation(s)
- J-I Nomura
- From the Department of Neurosurgery (J.-i.N., S.F., M.K., K.O.)
| | - I Uwano
- Division of Ultrahigh Field MRI (I.U., M.S., F.Y., K.I), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Morioka, Japan
| | - M Sasaki
- Division of Ultrahigh Field MRI (I.U., M.S., F.Y., K.I), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Morioka, Japan
| | - K Kudo
- Department of Diagnostic and Interventional Radiology (K.K.), Hokkaido University School of Medicine, Sappro, Japan
| | - F Yamashita
- Division of Ultrahigh Field MRI (I.U., M.S., F.Y., K.I), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Morioka, Japan
| | - K Ito
- Division of Ultrahigh Field MRI (I.U., M.S., F.Y., K.I), Institute for Biomedical Sciences, Iwate Medical University School of Medicine, Morioka, Japan
| | - S Fujiwara
- From the Department of Neurosurgery (J.-i.N., S.F., M.K., K.O.)
| | - M Kobayashi
- From the Department of Neurosurgery (J.-i.N., S.F., M.K., K.O.)
| | - K Ogasawara
- From the Department of Neurosurgery (J.-i.N., S.F., M.K., K.O.)
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Miyata M, Kakeda S, Kudo K, Wnag Y, Iwata S, Tanaka Y, Korogi Y. The oxygen extraction fraction (OEF) in systemic lupus erythematosus (SLE): MRI study using quantitative susceptibility mapping (QSM). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Ninomiya T, Hotta K, Ohashi K, Kubo T, Harada D, Kozuki T, Nogami N, Oze I, Hosokawa S, Bessho A, Yoshioka H, Kudo K, Kuyama S, Harita S, Takata I, Fujimoto N, Moritaka T, Ichikawa H, Takigawa N, Kiura K. Phase I/II trial of weekly nab-paclitaxel as 2nd or 3rd line treatment in NSCLC without driver mutations. (OLCSG1303). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx380.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Subekti M, Kudo K, Nabeshima K, Takamatsu K. Determination of Reactivity and Neutron Flux Using Modified Neural Network for HTGR. Atom Indo 2017. [DOI: 10.17146/aij.2017.683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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37
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Kudo K, Muramatsu H, Narita A, Yoshida N, Kobayashi R, Yabe H, Endo M, Inoue M, Hara J, Kounami S, Inagaki J, Hashii Y, Kato K, Tabuchi K, Kojima S. Unrelated cord blood transplantation in aplastic anemia: is anti-thymocyte globulin indispensable for conditioning? Bone Marrow Transplant 2017; 52:1659-1661. [DOI: 10.1038/bmt.2017.169] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Kudo K, Ozaki T, Shin-ya K, Nishiyama M, Kuzuyama T. Biosynthetic Origin of the Hydroxamic Acid Moiety of Trichostatin A: Identification of Unprecedented Enzymatic Machinery Involved in Hydroxylamine Transfer. J Am Chem Soc 2017; 139:6799-6802. [DOI: 10.1021/jacs.7b02071] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [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)
- Kei Kudo
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Taro Ozaki
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kazuo Shin-ya
- National Institute of Advanced Industrial Science and Technology, 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - Makoto Nishiyama
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Tomohisa Kuzuyama
- Biotechnology Research Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Endo H, Tsunekawa N, Sonoe M, Sasaki T, Ogawa H, Amano T, Nguyen TS, Phimphachanhvongsod V, Kudo K, Yonezawa T, Akishinonomiya F. Geographical variation in the skeletal morphology of red jungle fowl. Br Poult Sci 2017; 58:348-357. [PMID: 28418277 DOI: 10.1080/00071668.2017.1311008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
1. The skulls and postcranial skeletons of the red jungle fowl (Gallus gallus) were compared osteometrically between the populations from North and South Vietnam, North and Central Laos and Southeast Bangladesh. The populations include the three subspecies of G. g. spadiceus, G. g. gallus and G. g. murghi and were sampled to reveal the geographical morphological variations among populations in G. gallus. 2. The morphometric characteristics of subspecies murghi could be clearly distinguished from those of the other subspecies using a canonical discriminant analysis. However, the size and shape of the skull of the gallus population from South Vietnam were not statistically different from that of the subspecies spadiceus from North Laos. The canonical discriminant scores also clearly indicated that there were morphological similarities in the skulls of the populations from North Laos and South Vietnam. 3. From the results, therefore, it is concluded that red jungle fowls do not exhibit high levels of osteometric variation between geographical localities at least within the Indochinese Peninsula. 4. This contrasts with previous studies which have described these subspecies as having various external morphological differences and have argued that zoogeographical barriers exist between the north and south areas of the Indochinese Peninsula.
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Affiliation(s)
- H Endo
- a The University Museum, The University of Tokyo , Tokyo , Japan
| | - N Tsunekawa
- b Department of Bioscience in Daily Life , College of Bioresource Sciences, Nihon University , Kanagawa , Japan
| | - M Sonoe
- c Department of International Development Studies , College of Bioresource Sciences, Nihon University , Kanagawa , Japan
| | - Tї Sasaki
- d Laboratory of Wild Animals, Department of Human and Animal-Plant Relationships, Faculty of Agriculture , Tokyo University of Agriculture , Kanagawa , Japan
| | - H Ogawa
- d Laboratory of Wild Animals, Department of Human and Animal-Plant Relationships, Faculty of Agriculture , Tokyo University of Agriculture , Kanagawa , Japan
| | - T Amano
- e Faculty of Animal Health Technology , Yamazaki Gakuen University , Tokyo , Japan
| | - T S Nguyen
- f Department of Vertebrate Zoology , Institute of Ecology and Biological Resources and Graduate University of Science and Technology, Vietnam Academy of Science and Technology , Hanoi , Vietnam
| | - V Phimphachanhvongsod
- g Research Management Division , National Agriculture and Forestry Research Institute (NAFRI), Ministry of Agriculture and Forestry , Vientiane , Laos
| | - K Kudo
- h Department of Global Agricultural Sciences, Graduate School of Agriculture and Agricultural Life Sciences , The University of Tokyo , Tokyo , Japan
| | - T Yonezawa
- i School of Life Sciences , Fudan University , Shanghai , China
| | - F Akishinonomiya
- a The University Museum, The University of Tokyo , Tokyo , Japan
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Kotoh K, Kimura K, Nakamura Y, Kudo K. Hydrogen Isotope Separation Using Molecular Sieve of Synthetic Zeolite 3A. Fusion Science and Technology 2017. [DOI: 10.13182/fst08-a1844] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Kotoh
- Faculty of Engineering, Kyushu Univ., 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. E-mail:
| | - K. Kimura
- Faculty of Engineering, Kyushu Univ., 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. E-mail:
| | - Y. Nakamura
- Faculty of Engineering, Kyushu Univ., 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. E-mail:
| | - K. Kudo
- Faculty of Engineering, Kyushu Univ., 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. E-mail:
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Fujima N, Yoshida D, Sakashita T, Homma A, Tsukahara A, Tha KK, Kudo K, Shirato H. Usefulness of Pseudocontinuous Arterial Spin-Labeling for the Assessment of Patients with Head and Neck Squamous Cell Carcinoma by Measuring Tumor Blood Flow in the Pretreatment and Early Treatment Period. AJNR Am J Neuroradiol 2016; 37:342-8. [PMID: 26427828 DOI: 10.3174/ajnr.a4513] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 07/06/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND PURPOSE For the assessment of the treatment response in non-surgical treatment, tumor blood flow provides the functional information of the tumor which is different from the morphological information such as tumor volume. The purpose of this study was to evaluate the diagnostic value of tumor blood flow values obtained by pseudocontinuous arterial spin-labeling in patients with head and neck squamous cell carcinoma. MATERIALS AND METHODS Forty-one patients with head and neck squamous cell carcinoma were evaluated by using pseudocontinuous arterial spin-labeling. Quantitative tumor blood flow was calculated at the pretreatment and the early treatment periods in all the patients, and the percentage change of tumor blood flow between the two was calculated. At the early treatment period, based on their tumor volume reduction rate, we divided the patients into stable disease and partial response groups for a subgroup analysis. The local control or failure was confirmed either by histopathology or by radiologic evaluation within the follow-up. RESULTS Pretreatment tumor blood flow in patients in the failure group was significantly lower than that in patients in the local control group. In the subgroup analysis of patients with stable disease, the percentage change of tumor blood flow was significantly larger (due to the tumor blood flow increase from pretreatment value) in the local control group than in the failure group. In addition, in patients with a partial response, the percentage change of tumor blood flow was significantly smaller (due to the tumor blood flow decrease from the pretreatment value) in the local control group than in the failure group. The accuracy for determination of the local control group or the failure group in pretreatment tumor blood flow was 0.83 and that in the combination use of the percentage change of tumor blood flow and tumor volume in the early treatment period was 0.93. CONCLUSIONS Tumor blood flow obtained by pseudocontinuous arterial spin-labeling can be useful for the determination of local control. The combined use of the percentage change of tumor blood flow and tumor volume had particularly high diagnostic accuracy.
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Affiliation(s)
- N Fujima
- From the Department of Diagnostic and Interventional Radiology (N.F., D.Y., A.T., K.K.), Hokkaido University Hospital, Sapporo, Japan
| | - D Yoshida
- From the Department of Diagnostic and Interventional Radiology (N.F., D.Y., A.T., K.K.), Hokkaido University Hospital, Sapporo, Japan
| | - T Sakashita
- Departments of Otolaryngology-Head and Neck Surgery (T.S., A.H.)
| | - A Homma
- Departments of Otolaryngology-Head and Neck Surgery (T.S., A.H.)
| | - A Tsukahara
- From the Department of Diagnostic and Interventional Radiology (N.F., D.Y., A.T., K.K.), Hokkaido University Hospital, Sapporo, Japan
| | - K K Tha
- Radiation Medicine (K.K.T., H.S.), Hokkaido University Graduate School of Medicine, Sapporo, Japan Global Station for Quantum Medical Science and Engineering (K.K.T., H.S.), Global Institution for Collaborative Research and Education, Sapporo, Japan
| | - K Kudo
- From the Department of Diagnostic and Interventional Radiology (N.F., D.Y., A.T., K.K.), Hokkaido University Hospital, Sapporo, Japan
| | - H Shirato
- Radiation Medicine (K.K.T., H.S.), Hokkaido University Graduate School of Medicine, Sapporo, Japan Global Station for Quantum Medical Science and Engineering (K.K.T., H.S.), Global Institution for Collaborative Research and Education, Sapporo, Japan
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Arimitsu K, Tomota K, Fuse S, Kudo K, Furutani M. A non-linear organic reaction of malonate derivative as a base amplifier to generate imidazoles without producing gas. RSC Adv 2016. [DOI: 10.1039/c6ra04328c] [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: 02/04/2023] Open
Abstract
A novel base amplifier that is decomposed autocatalytically to generate imidazoles without producing gas has been designed.
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Affiliation(s)
- K. Arimitsu
- Department of Pure and Applied Chemistry
- Tokyo University of Science
- Noda
- Japan
| | - K. Tomota
- Department of Pure and Applied Chemistry
- Tokyo University of Science
- Noda
- Japan
| | - S. Fuse
- Department of Pure and Applied Chemistry
- Tokyo University of Science
- Noda
- Japan
| | - K. Kudo
- Department of Pure and Applied Chemistry
- Tokyo University of Science
- Noda
- Japan
- Central Research Laboratory
| | - M. Furutani
- Department of Pure and Applied Chemistry
- Tokyo University of Science
- Noda
- Japan
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43
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Bessho A, Hosokawa S, Hotta K, Kudo K, Nogami N, Kuyama S, Gemba K, Inoue K, Okada T, Takigawa N, Tanimoto M, Kiura K. 453P Development of skin rash within the first week is a potential surrogate marker of effect in afatinib for EGFR mutant NSCLC: Okayama Lung Cancer Study Group Experience. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv532.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Toyoshima M, Mori H, Kudo K, Yodogawa Y, Sato K, Kudo T, Igeta S, Makino H, Shima T, Matsuura R, Ishigaki N, Akagi K, Takeyama Y, Iwahashi H, Yoshinaga K. Isolated torsion of the fallopian tube in a menopausal woman and a pre-pubertal girl: two case reports. J Med Case Rep 2015; 9:258. [PMID: 26572791 PMCID: PMC4647800 DOI: 10.1186/s13256-015-0745-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 10/23/2015] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Isolated torsion of the fallopian tube without an ovarian abnormality is an uncommon event, with an incidence of approximately 1 in 1,500,000 females. Isolated torsion of the fallopian tube occurs mostly in reproductive-aged women, and is thus extremely rare in menopausal women and pre-pubertal girls. CASE PRESENTATIONS In case 1, 63-year-old Japanese woman presented with a 2-day history of acute lower abdominal pain. Menopause occurred at 53 years of age. Pelvic ultrasonography showed an enlarged mass (73 × 47 mm) on the right side of her uterus. An urgent laparoscopy was performed based on a presumptive diagnosis of right ovarian tumor torsion. During the laparoscopy, we noted a black, necrotic, solid tumor arising from the distal end of her right fimbria. Her right fallopian tube was twisted with the tumor, but her right ovary was normal and not involved. A laparoscopic tumorectomy with a right salpingectomy was performed. Her post-operative course was uneventful. In case 2, a 10-year-old Japanese girl presented with a 1-day history of lower abdominal pain associated with nausea and vomiting. Menarche had occurred 2 months earlier. A computed tomography and magnetic resonance imaging examination demonstrated a dilated tubal cystic mass with a normal uterus and bilateral ovaries. An urgent laparoscopy was performed based on a presumptive diagnosis of right fallopian tube torsion. During laparoscopy, her right fallopian tube was noted to be dark red, dilated, and twisted several times. Her right fimbria was necrotic-appearing and could not be preserved. Therefore, a laparoscopic right salpingectomy was performed. A histologic examination revealed ischemic changes with congestion of her right fallopian tube, which was consistent with tubal torsion. She had an uncomplicated post-operative course. CONCLUSION We have presented two very rare cases of isolated fallopian tubal torsion. Radiologic interventions, such as computed tomography and magnetic resonance imaging, in addition to ultrasonography, are helpful diagnostic tools. Isolated torsion of the fallopian tube should be considered in the differential diagnosis of lower abdominal pain with a cystic mass and a normal ipsilateral ovary in all female patients, regardless of age.
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Affiliation(s)
- Masafumi Toyoshima
- Department of Obstetrics and Gynecology, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan. .,Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Hikaru Mori
- Department of Obstetrics and Gynecology, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan.
| | - Kei Kudo
- Department of Obstetrics and Gynecology, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan.
| | - Yuki Yodogawa
- Department of Obstetrics and Gynecology, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan.
| | - Kazuyo Sato
- Department of Obstetrics and Gynecology, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan.
| | - Takako Kudo
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Saori Igeta
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Hiromitsu Makino
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Takashi Shima
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Rui Matsuura
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Nobuko Ishigaki
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Kozo Akagi
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Yoichi Takeyama
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
| | - Hideki Iwahashi
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan. .,Department of Obstetrics and Gynecology, Self-Defense Force Sendai Hospital, Sendai, Japan.
| | - Kosuke Yoshinaga
- Department of Obstetrics and Gynecology, Sendai Medical Center, National Hospital Organization, 2-8-8, Miyagino, Miyagino-ku, Sendai, Miyagi, 983-8520, Japan.
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Kawaguchiya M, Urushibara N, Aung MS, Morimoto S, Ito M, Kudo K, Sumi A, Kobayashi N. Emerging non-PCV13 serotypes of noninvasive Streptococcus pneumoniae with macrolide resistance genes in northern Japan. New Microbes New Infect 2015; 9:66-72. [PMID: 26909157 PMCID: PMC4735479 DOI: 10.1016/j.nmni.2015.11.001] [Citation(s) in RCA: 28] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 11/02/2015] [Accepted: 11/02/2015] [Indexed: 01/20/2023] Open
Abstract
In Japan, the 7-valent pneumococcal conjugate vaccine (PCV7) was introduced to the nation's routine immunization program in April 2013 and was replaced by the 13-valent pneumococcal conjugate vaccine (PCV13) in November 2013. Distribution of serotypes and macrolide resistance genotypes was investigated for a total of 1097 (975 children, 122 adults) and 960 (873 children, 87 adults) clinical isolates of Streptococcus pneumoniae from noninvasive infections in Hokkaido (northern main island of Japan) in the routine immunization periods for PCV7 and PCV13 (April–October 2013 and November 2013–November 2014, respectively). Serotype was determined by sequential multiplex PCR and additional genetic analyses. Macrolide resistance genes erm(B) and mef(A/E) were detected by multiplex PCR. Although the most prevalent serotypes in children were 23A and 6C in the PCV7 period, after replacement with PCV13, 19A became the most common, followed by 6C, 15A and 23A. Among adults, serotype 3 was consistently the most frequent throughout the study periods. Compared with values from the pre-PCV7 routine immunization period, PCV7 serotypes decreased from 48.3 to 3.3% in the PCV13 period among children, while the rates of non-PCV13 serotypes (particularly 15A, 23A, 11A, 10A and 35B) increased from 39.7 to 75.1% (p < 0.001). In the PCV13 period, erm(B), mef(A/E) and both of these genes were detected in 75.8, 31.6 and 11.3% of all isolates, respectively. Serotype 19A accounted for 76.9% of the isolates with both the macrolide resistance genes, and emerging non-PCV13 serotypes 15A, 15C and 23A mostly harboured erm(B).
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Affiliation(s)
- M Kawaguchiya
- Department of Hygiene, Sapporo Medical University School of Medicine, Japan
| | - N Urushibara
- Department of Hygiene, Sapporo Medical University School of Medicine, Japan
| | - M S Aung
- Department of Hygiene, Sapporo Medical University School of Medicine, Japan
| | - S Morimoto
- Sapporo Clinical Laboratory Inc., Sapporo, Hokkaido, Japan
| | - M Ito
- Sapporo Clinical Laboratory Inc., Sapporo, Hokkaido, Japan
| | - K Kudo
- Sapporo Clinical Laboratory Inc., Sapporo, Hokkaido, Japan
| | - A Sumi
- Department of Hygiene, Sapporo Medical University School of Medicine, Japan
| | - N Kobayashi
- Department of Hygiene, Sapporo Medical University School of Medicine, Japan
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46
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Takeda M, Sakai K, Terashima M, Kaneda H, Hayashi H, Tanaka K, Okamoto K, Takahama T, Yoshida T, Iwasa T, Shimizu T, Nonagase Y, Kudo K, Tomida S, Mitsudomi T, Saigo K, Ito A, Nakagawa K, Nishio K. Clinical application of amplicon-based next-generation sequencing to therapeutic decision making in lung cancer. Ann Oncol 2015; 26:2477-82. [PMID: 26420428 DOI: 10.1093/annonc/mdv475] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 09/18/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The clinical implementation of genomic profiling for lung cancer with high-throughput, multiplex tests is warranted to allow prioritization of appropriate therapies for individual patients. We have now applied such testing to detect actionable mutations that may inform treatment recommendations in lung cancer. PATIENTS AND METHODS We prospectively applied amplicon sequencing panels that cover both mutational hotspots in 22 genes related to lung and colon tumorigenesis as well as 72 major variants of ALK, RET, ROS1, and NTRK1 fusion transcripts. We then determined the proportion of patients who received genotype-directed therapy and their overall survival (OS). RESULTS Tumor specimens from 110 patients with lung cancer recruited between July 2013 and March 2015 were analyzed. The most common genetic alterations were TP53 mutations in 42 patients, followed by EGFR mutations in 25, STK11 mutations in 12, and KRAS mutations in 10. Potentially actionable mutations were identified in 44 patients including 50% of those with adenocarcinoma and 14% of those with squamous cell carcinoma. The OS of patients with advanced or recurrent cancer who had an actionable mutation and received targeted therapy (median OS not achieved) was significantly longer than that of those with no mutation (18.1 months, P = 0.041) or of those with a mutation not so treated (6.1 months, P = 0.0027). CONCLUSIONS Multiplex genomic testing was performed on formalin-fixed, paraffin-embedded tumor specimens with a success rate of ≥95%. Such testing can assist physicians in matching patients with approved or experimental targeted treatments. CLINICAL TRIAL REGISTRATION The University Medical Hospital Information Network (UMIN) Clinical Trials Registry under the identifier UMIN000014782.
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Affiliation(s)
| | - K Sakai
- Department of Genome Biology
| | | | | | | | | | | | | | | | - T Iwasa
- Department of Medical Oncology
| | | | | | - K Kudo
- Department of Medical Oncology
| | | | - T Mitsudomi
- Division of Thoracic Surgery, Department of Surgery
| | - K Saigo
- Department of Neurology Department of Medical Genetics
| | - A Ito
- Department of Pathology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan
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Kudo K, Muramatsu H, Yoshida N, Kobayashi R, Yabe H, Tabuchi K, Kato K, Koh K, Takahashi Y, Hashii Y, Kawano Y, Inoue M, Cho Y, Sakamaki H, Kawa K, Kato K, Suzuki R, Kojima S. Second allogeneic hematopoietic stem cell transplantation in children with severe aplastic anemia. Bone Marrow Transplant 2015; 50:1312-5. [PMID: 26121106 DOI: 10.1038/bmt.2015.153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 04/27/2015] [Accepted: 05/15/2015] [Indexed: 11/09/2022]
Abstract
The outcome of 55 children with severe aplastic anemia (SAA) who received a second hematopoietic stem cell transplantation (HSCT) was retrospectively analyzed using the registration data of the Japanese Society for Hematopoietic Cell Transplantation. The 5-year overall survival (OS) and failure-free survival (FFS) after the second transplantation were 82.9% (95% confidence interval (CI), 69.7-90.8)) and 81.2% (95% CI, 67.8-89.4), respectively. FFS was significantly better when the interval between the first and second transplantation was >60 days (88.9%; 95% CI, 73.0-95.7) than when it was ⩽60 days (61.4%; 95% CI, 33.3-80.5; P=0.026). All 12 patients who were conditioned with regimens containing fludarabine and melphalan were alive with hematopoietic recovery. These findings justify the recommendation of a second HSCT for children with SAA who have experienced graft failure after first HSCT.
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Affiliation(s)
- K Kudo
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - H Muramatsu
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - N Yoshida
- Division of Pediatric Hematology/Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - R Kobayashi
- Department of Pediatrics, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - H Yabe
- Department of Cell Transplantation and Regeneration Medicine, Tokai University School of Medicine, Isehara, Japan
| | - K Tabuchi
- Division of Pediatrics, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - K Kato
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - K Koh
- Department of Hematology and Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Y Takahashi
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Hashii
- Department of Pediatrics, Osaka University Hospital, Suita, Japan
| | - Y Kawano
- Department of Pediatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima City, Japan
| | - M Inoue
- Department of Hematology/Oncology, Osaka Medical Center and Research Institute for Maternal and Child Health, Izumi, Japan
| | - Y Cho
- Department of Pediatrics, Hokkaido University Hospital, Sapporo, Japan
| | - H Sakamaki
- Division of Hematology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - K Kawa
- Japanese Red Cross Kinki Block Blood Center, Ibaraki, Japan
| | - K Kato
- Division of Pediatric Hematology/Oncology, Children's Medical Center, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - R Suzuki
- Department of Hematopoietic Stem Cell Transplantation, Data Management and Biostatistics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Fujima N, Nakamaru Y, Sakashita T, Homma A, Tsukahara A, Kudo K, Shirato H. Differentiation of squamous cell carcinoma and inverted papilloma using non-invasive MR perfusion imaging. Dentomaxillofac Radiol 2015; 44:20150074. [PMID: 26054571 DOI: 10.1259/dmfr.20150074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To investigate the diagnostic value of tumour blood flow (TBF) obtained with pseudocontinuous arterial spin labelling for the differentiation of squamous cell carcinoma (SCC) and inverted papilloma (IP) in the nasal or sinonasal cavity. METHODS We retrospectively analysed the cases of 33 patients with SCC and 8 patients with IP in the nasal or sinonasal cavity. Pseudocontinuous arterial spin labelling scanning was performed for all patients using a 3.0-T MR unit. Quantitative TBF values were measured by two neuroradiologists by respectively delineating the whole-tumour regions of interest, and the mean of them was determined as TBF value in each patient. Additionally, the presence of imaging findings of convoluted cerebriform pattern (CCP) on MR T2 weighted images was determined in all patients. As a subgroup analysis, patients with IP were divided into aggressive and non-aggressive IPs depending on their progression range. First, an intraclass correlation coefficient (ICC) of TBF values between two neuroradiologists was determined. Next, a statistical comparison of the TBF value by a Mann-Whitney U test between the patients with SCC and IP was performed. Additionally, the comparison by an ANOVA with a post hoc test of Tukey's method among the SCC, non-aggressive IP and aggressive IP groups was also performed. If significance was observed, the diagnostic accuracy to differentiate SCCs from IPs was calculated. Diagnostic accuracy by CCP findings alone and by the combination of CCP findings and TBF were also assessed. RESULTS The ICC of TBF values between two neuroradiologists was 0.82. The mean TBF values in the patients with SCC, all patients with IP, those with aggressive IP and those with non-aggressive IP were 141.2 ± 33.1, 77.8 ± 31.5, 109.4 ± 16.7 and 58.8 ± 19.9 ml 100 g⁻¹ min⁻¹, respectively. A significant difference was observed between SCC and IP (p < 0.001), SCC and non-aggressive IP (p < 0.01) and non-aggressive IP and aggressive IP (p < 0.01). The diagnostic accuracy values obtained with receiver operating characteristic curve analysis for the differentiation of SCC from IP and for SCC from non-aggressive IP were 0.90 and 0.92, respectively. The diagnostic accuracy was elevated (0.95 from 0.88) by adding the TBF value to CCP findings. CONCLUSIONS The pseudocontinuous arterial spin labelling technique can be a useful non-invasive diagnostic tool to differentiate SCC from IP in nasal or sinonasal cavity.
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Affiliation(s)
- N Fujima
- 1 Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - Y Nakamaru
- 2 Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - T Sakashita
- 2 Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - A Homma
- 2 Department of Otolaryngology-Head and Neck Surgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - A Tsukahara
- 1 Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - K Kudo
- 1 Department of Diagnostic and Interventional Radiology, Hokkaido University Hospital, Sapporo, Japan
| | - H Shirato
- 3 Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan.,4 The Global Station for Quantum Medical Science and Engineering, Global Institution for collaborative research and education, Sapporo, Japan
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49
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Yoshida M, Kobayashi H, Yamauchi I, Takigawa M, Capponi S, Poilblanc D, Mila F, Kudo K, Koike Y, Kobayashi N. Real space imaging of spin polarons in Zn-doped SrCu(2)(BO(3))(2). Phys Rev Lett 2015; 114:056402. [PMID: 25699459 DOI: 10.1103/physrevlett.114.056402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Indexed: 06/04/2023]
Abstract
We report on the real space profile of spin polarons in the quasi-two-dimensional frustrated dimer spin system SrCu(2)(BO(3))(2) doped with 0.16% of Zn. The (11)B nuclear magnetic resonance spectrum exhibits 15 additional boron sites near nonmagnetic Zn impurities. With the help of exact diagonalizations of finite clusters, we have deduced from the boron spectrum, the distribution of local magnetizations at the Cu sites with fine spatial resolution, providing direct evidence for an extended spin polaron. The results are confronted with those of other experiments performed on doped and undoped samples of SrCu(2)(BO(3))(2).
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Affiliation(s)
- M Yoshida
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - H Kobayashi
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - I Yamauchi
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - M Takigawa
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - S Capponi
- Laboratoire de Physique Théorique, Université de Toulouse and CNRS, UPS (IRSAMC), F-31062 Toulouse, France
| | - D Poilblanc
- Laboratoire de Physique Théorique, Université de Toulouse and CNRS, UPS (IRSAMC), F-31062 Toulouse, France
| | - F Mila
- Institut de Théorie des Phénomènes Physiques, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - K Kudo
- Department of Physics, Okayama University, Okayama 700-8530, Japan
| | - Y Koike
- Department of Applied Physics, Tohoku University, Sendai 980-8579, Japan
| | - N Kobayashi
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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50
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Joseph B, Paris E, Mulato-Gómez DF, Simonelli L, Bendele M, Maugeri L, Iadecola A, Pyon S, Kudo K, Nohara M, Mustre de Leon J, Mizokawa T, Saini NL. Temperature dependent nanoscale atomic correlations in Ir1-xPtxTe2 (x = 0.0, 0.03 and 0.04) system. J Phys Condens Matter 2014; 26:375702. [PMID: 25164212 DOI: 10.1088/0953-8984/26/37/375702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
X-ray absorption near-edge structure (XANES) spectroscopy has been used to investigate the unoccupied electronic states and local geometry of Ir1-xPtxTe2(x = 0.0, 0.03 and 0.04) as a function of temperature. The Ir L3-edge absorption white line, as well as high energy XANES features due to the photoelectron multiple scatterings with near neighbours, reveal clear changes in the unoccupied 5d-electronic states and the local geometry with Pt substitution. We find an anomalous spectral weight transfer across the known first-order structural phase transition from the trigonal to monoclinic phase in IrTe2, which characterizes the reduced atomic structure symmetry below the transition temperature. No such changes with temperature are seen in the Pt substituted superconducting samples. In addition, a gradual increase of the spectral weight transfer is observed in IrTe2 with a further decrease in temperature below the transition, indicating that the low temperature phase is likely to have a symmetry lower than the monoclinic one. The results suggest that the interplay between inter-layer and intra-layer atomic correlations should have a significant role in the properties of an Ir1-xPtxTe2 system.
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Affiliation(s)
- B Joseph
- Dipartimento di Fisica, Università di Roma 'La Sapienza', P. le Aldo Moro 2, 00185 Roma, Italy
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