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Kobayashi K, Yamamura M, Mikami B, Shiraishi A, Kumatani M, Satake H, Ono E, Umezawa T. Anthriscus sylvestris Deoxypodophyllotoxin Synthase Involved in the Podophyllotoxin Biosynthesis. Plant Cell Physiol 2023; 64:1436-1448. [PMID: 37948767 DOI: 10.1093/pcp/pcad103] [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] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 08/28/2023] [Accepted: 09/14/2023] [Indexed: 11/12/2023]
Abstract
Tetrahydrofuran ring formation from dibenzylbutyrolactone lignans is a key step in the biosynthesis of aryltetralin lignans including deoxypodophyllotoxin and podophyllotoxin. Previously, Fe(II)- and 2-oxoglutarate-dependent dioxygenase (2-ODD) from Podophyllum hexandrum (Himalayan mayapple, Berberidaceae) was found to catalyze the cyclization of a dibenzylbutyrolactone lignan, yatein, to give deoxypodophyllotoxin and designated as deoxypodophyllotoxin synthase (DPS). Recently, we reported that the biosynthesis of deoxypodophyllotoxin and podophyllotoxin evolved in a lineage-specific manner in phylogenetically unrelated plant species such as P. hexandrum and Anthriscus sylvestris (cow parsley, Apiaceae). Therefore, a comprehensive understanding of the characteristics of DPSs that catalyze the cyclization of yatein to deoxypodophyllotoxin in various plant species is important. However, for plant species other than P. hexandrum, the isolation of the DPS enzyme gene and the type of the enzyme, e.g. whether it is 2-ODD or another type of enzyme such as cytochrome P-450, have not been reported. In this study, we report the identification and characterization of A. sylvestris DPS (AsDPS). Phylogenetic analysis showed that AsDPS belonged to the 2-ODD superfamily and shared moderate amino acid sequence identity (40.8%) with P. hexandrum deoxypodophyllotoxin synthase (PhDPS). Recombinant protein assay indicated that AsDPS and PhDPS differ in terms of the selectivity of substrate enantiomers. Protein modeling using AlphaFold2 and site-directed mutagenesis indicated that the Tyr305 residue of AsDPS probably contributes to substrate recognition. This study advances our understanding of the podophyllotoxin biosynthetic pathway in A. sylvestris and provides new insight into 2-ODD involved in plant secondary (specialized) metabolism.
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Affiliation(s)
- Keisuke Kobayashi
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
- Faculty of Bioscience and Bioindustry, Tokushima University, 2-1, Minami-josanjima-cho, Tokushima, 770-8502 Japan
| | - Bunzo Mikami
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Akira Shiraishi
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 8-1-1 Seikadai, Seika-cho, Soraku-gun, Kyoto, 619-0284 Japan
| | - Masato Kumatani
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Honoo Satake
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 8-1-1 Seikadai, Seika-cho, Soraku-gun, Kyoto, 619-0284 Japan
| | - Eiichiro Ono
- Research Institute, Suntory Global Innovation Center Ltd., 8-1-1 Seikadai, Seika-cho, Soraku-gun, Kyoto, 619-0284 Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
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Yamamura M, Kumatani M, Shiraishi A, Matsuura Y, Kobayashi K, Suzuki A, Kawamura A, Satake H, Ragamustari SK, Suzuki S, Suzuki H, Shibata D, Kawai S, Ono E, Umezawa T. Two O-Methyltransferases from Phylogenetically Unrelated Cow Parsley (Anthriscus sylvestris) and Hinoki-Asunaro (Thujopsis dolabrata var. hondae) as a Signature of Lineage-Specific Evolution in Lignan Biosynthesis. Plant Cell Physiol 2023; 64:124-147. [PMID: 36412832 DOI: 10.1093/pcp/pcac164] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/19/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
O-Methyltransferases (OMTs) play important roles in antitumor lignan biosynthesis. To date, six OMTs catalyzing the methylation of dibenzylbutyrolactone lignans as biosynthetic precursors of antitumor lignans have been identified. However, there is still no systematic understanding of the diversity and regularity of the biosynthetic mechanisms among various plant lineages. Herein, we report the characterization of two OMTs from Anthriscus sylvestris and Thujopsis dolabrata var. hondae [designated as AsSecoNorYatein (SNY) OMT and TdSNYOMT] together with the six known OMTs to evaluate their diversity and regularity. Although A. sylvestris 5-O-methylthujaplicatin (SecoNorYatein) and 4-O-demethylyatein (NorYatein) OMT (AsSNYOMT) and TdSNYOMT accept 5-O-methylthujaplicatin and 4-O-demethylyatein as substrates, phylogenetic analysis indicated that these two OMTs shared low amino acid sequence identity, 33.8%, indicating a signature of parallel evolution. The OMTs and the six previously identified OMTs were found to be diverse in terms of their substrate specificity, regioselectivity and amino acid sequence identity, indicating independent evolution in each plant species. Meanwhile, two-entropy analysis detected four amino acid residues as being specifically acquired by dibenzylbutyrolactone lignan OMTs. Site-directed mutation of AsSNYOMT indicated that two of them contributed specifically to 5-O-methylthujaplicatin methylation. The results provide a new example of parallel evolution and the diversity and regularity of OMTs in plant secondary (specialized) metabolism.
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Affiliation(s)
- Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
- Faculty of Bioscience and Bioindustry, Tokushima University, Minami-josanjima-cho 2-1, Tokushima, 770-8502 Japan
| | - Masato Kumatani
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Akira Shiraishi
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 8-1-1 Seikadai, Seika-cho, Soraku-gun, Kyoto, 619-0284 Japan
| | - Yu Matsuura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Keisuke Kobayashi
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
| | - Ayano Suzuki
- Faculty of Agriculture, Shizuoka University, Ohya 836, Surugaku, Shizuoka, 422-8529 Japan
| | - Atsushi Kawamura
- Faculty of Agriculture, Shizuoka University, Ohya 836, Surugaku, Shizuoka, 422-8529 Japan
| | - Honoo Satake
- Bioorganic Research Institute, Suntory Foundation for Life Sciences, 8-1-1 Seikadai, Seika-cho, Soraku-gun, Kyoto, 619-0284 Japan
| | - Safendrri Komara Ragamustari
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
- Research Center for Applied Microbiology, Research Organization for Life Sciences and Environment, Indonesian Research and Innovation Agency, Jl. Raya Jakarta-Bogor KM 46, Cibinong, Bogor, 16911 Indonesia
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
- Faculty of Applied Biological Sciences, Gifu University, Yanagido 1-1, Gifu, 501-1193 Japan
| | - Hideyuki Suzuki
- Department of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba, 292-0818 Japan
| | - Daisuke Shibata
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
- Department of Applied Genomics, Kazusa DNA Research Institute, 2-6-7 Kazusa-Kamatari, Kisarazu, Chiba, 292-0818 Japan
| | - Shingo Kawai
- Faculty of Agriculture, Shizuoka University, Ohya 836, Surugaku, Shizuoka, 422-8529 Japan
| | - Eiichiro Ono
- Suntory Global Innovation Center Ltd., 8-1-1 Seikadai, Seika-cho, Soraku-gun, Kyoto, 619-0284 Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
- Research Unit for Realization of Sustainable Society, Kyoto University, Gokasho, Uji, Kyoto, 611-0011 Japan
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Martin AF, Tobimatsu Y, Lam PY, Matsumoto N, Tanaka T, Suzuki S, Kusumi R, Miyamoto T, Takeda-Kimura Y, Yamamura M, Koshiba T, Osakabe K, Osakabe Y, Sakamoto M, Umezawa T. Lignocellulose molecular assembly and deconstruction properties of lignin-altered rice mutants. Plant Physiol 2023; 191:70-86. [PMID: 36124989 PMCID: PMC9806629 DOI: 10.1093/plphys/kiac432] [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] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Bioengineering approaches to modify lignin content and structure in plant cell walls have shown promise for facilitating biochemical conversions of lignocellulosic biomass into valuable chemicals. Despite numerous research efforts, however, the effect of altered lignin chemistry on the supramolecular assembly of lignocellulose and consequently its deconstruction in lignin-modified transgenic and mutant plants is not fully understood. In this study, we aimed to close this gap by analyzing lignin-modified rice (Oryza sativa L.) mutants deficient in 5-HYDROXYCONIFERALDEHYDE O-METHYLTRANSFERASE (CAldOMT) and CINNAMYL ALCOHOL DEHYDROGENASE (CAD). A set of rice mutants harboring knockout mutations in either or both OsCAldOMT1 and OsCAD2 was generated in part by genome editing and subjected to comparative cell wall chemical and supramolecular structure analyses. In line with the proposed functions of CAldOMT and CAD in grass lignin biosynthesis, OsCAldOMT1-deficient mutant lines produced altered lignins depleted of syringyl and tricin units and incorporating noncanonical 5-hydroxyguaiacyl units, whereas OsCAD2-deficient mutant lines produced lignins incorporating noncanonical hydroxycinnamaldehyde-derived units. All tested OsCAldOMT1- and OsCAD2-deficient mutants, especially OsCAldOMT1-deficient lines, displayed enhanced cell wall saccharification efficiency. Solid-state nuclear magnetic resonance (NMR) and X-ray diffraction analyses of rice cell walls revealed that both OsCAldOMT1- and OsCAD2 deficiencies contributed to the disruptions of the cellulose crystalline network. Further, OsCAldOMT1 deficiency contributed to the increase of the cellulose molecular mobility more prominently than OsCAD2 deficiency, resulting in apparently more loosened lignocellulose molecular assembly. Such alterations in cell wall chemical and supramolecular structures may in part account for the variations of saccharification performance of the OsCAldOMT1- and OsCAD2-deficient rice mutants.
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Affiliation(s)
- Andri Fadillah Martin
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- Research Center for Genetic Engineering, National Research and Innovation Agency (BRIN), Bogor, 16911, Indonesia
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
| | - Pui Ying Lam
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- Center for Crossover Education, Graduate School of Engineering Science, Akita University, Akita, 010-8502, Japan
| | - Naoyuki Matsumoto
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
| | - Takuto Tanaka
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - Ryosuke Kusumi
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Takuji Miyamoto
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- Sakeology Center, Niigata University, Niigata, 950-2181, Japan
| | - Yuri Takeda-Kimura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- Department of Botany, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, 770-8503, Japan
| | - Taichi Koshiba
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- National Agriculture and Food Research Organization, Tsukuba, 305-8517, Japan
| | - Keishi Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, 770-8503, Japan
| | - Yuriko Osakabe
- School of Life Science and Technology, Tokyo Institute of Technology, Tokyo, 152-8550, Japan
| | - Masahiro Sakamoto
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji 611-0011, Japan
- Research Unit for Realization of Sustainable Society (RURSS), Kyoto University, Uji, 611-0011, Japan
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Yonekura-Sakakibara K, Yamamura M, Matsuda F, Ono E, Nakabayashi R, Sugawara S, Mori T, Tobimatsu Y, Umezawa T, Saito K. Seed-coat protective neolignans are produced by the dirigent protein AtDP1 and the laccase AtLAC5 in Arabidopsis. Plant Cell 2021; 33:129-152. [PMID: 33751095 PMCID: PMC8136895 DOI: 10.1093/plcell/koaa014] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/20/2020] [Indexed: 05/03/2023]
Abstract
Lignans/neolignans are generally synthesized from coniferyl alcohol (CA) in the cinnamate/monolignol pathway by oxidation to generate the corresponding radicals with subsequent stereoselective dimerization aided by dirigent proteins (DIRs). Genes encoding oxidases and DIRs for neolignan biosynthesis have not been identified previously. In Arabidopsis thaliana, the DIR AtDP1/AtDIR12 plays an essential role in the 8-O-4' coupling in neolignan biosynthesis by unequivocal structural determination of the compound missing in the atdp1 mutant as a sinapoylcholine (SC)-conjugated neolignan, erythro-3-{4-[2-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-1-hydroxymethylethoxy]-3,5-dimethoxyphenyl}acryloylcholine. Phylogenetic analyses showed that AtDP1/AtDIR12 belongs to the DIR-a subfamily composed of DIRs for 8-8' coupling of monolignol radicals. AtDP1/AtDIR12 is specifically expressed in outer integument 1 cells in developing seeds. As a putative oxidase for neolignan biosynthesis, we focused on AtLAC5, a laccase gene coexpressed with AtDP1/AtDIR12. In lac5 mutants, the abundance of feruloylcholine (FC)-conjugated neolignans decreased to a level comparable to those in the atdp1 mutant. In addition, SC/FC-conjugated neolignans were missing in the seeds of mutants defective in SCT/SCPL19, an enzyme that synthesizes SC. These results strongly suggest that AtDP1/AtDIR12 and AtLAC5 are involved in neolignan biosynthesis via SC/FC. A tetrazolium penetration assay showed that seed coat permeability increased in atdp1 mutants, suggesting a protective role of neolignans in A. thaliana seeds.
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Affiliation(s)
- Keiko Yonekura-Sakakibara
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Fumio Matsuda
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Eiichiro Ono
- Research Institute, Suntory Global Innovation Center Ltd., 8-1-1 Seikadai, Seika, Soraku-gun, Kyoto 619-0284, Japan
| | - Ryo Nakabayashi
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Satoko Sugawara
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Tetsuya Mori
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
- Research Unit for Development of Global Sustainability, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
- Plant Molecular Science Center, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
- Author for correspondence: ,
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Miyamoto T, Takada R, Tobimatsu Y, Suzuki S, Yamamura M, Osakabe K, Osakabe Y, Sakamoto M, Umezawa T. Double knockout of OsWRKY36 and OsWRKY102 boosts lignification with altering culm morphology of rice. Plant Sci 2020; 296:110466. [PMID: 32539998 DOI: 10.1016/j.plantsci.2020.110466] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 02/18/2020] [Accepted: 03/08/2020] [Indexed: 06/11/2023]
Abstract
Breeding to enrich lignin, a major component of lignocelluloses, in plants contributes to enhanced applications of lignocellulosic biomass into solid biofuels and valuable aromatic chemicals. To collect information on enhancing lignin deposition in grass species, important lignocellulose feedstocks, we generated rice (Oryza sativa) transgenic lines deficient in OsWRKY36 and OsWRKY102, which encode putative transcriptional repressors for secondary cell wall formation. We used CRISPR/Cas9-mediated targeted mutagenesis and closely characterized their altered cell walls using chemical and nuclear magnetic resonance (NMR) methods. Both OsWRKY36 and OsWRKY102 mutations significantly increased lignin content by up to 28 % and 32 %, respectively. Additionally, OsWRKY36/OsWRKY102-double-mutant lines displayed lignin enrichment of cell walls (by up to 41 %) with substantially altered culm morphology over the single-mutant lines as well as the wild-type controls. Our chemical and NMR analyses showed that relative abundances of guaiacyl and p-coumarate units were slightly higher and lower, respectively, in the WRKY mutant lignins compared with those in the wild-type lignins. Our results provide evidence that both OsWRKY36 and OsWRKY102 are associated with repression of rice lignification.
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Affiliation(s)
- Takuji Miyamoto
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Rie Takada
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Keishi Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yuriko Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Masahiro Sakamoto
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan; Research Unit for Development of Global Sustainability, Kyoto University, Uji, Kyoto, 611-0011, Japan.
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Yamamura M. FRI0266 THE REAL-WORLD EFFICACY OF THE 2015 EULAR/ACR RECOMMENDATIONS FOR THE MANAGEMENT OF POLYMYALGIA RHEUMATICA WITH ADDITIONAL TOCILIZUMAB THERAPY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.6233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:A Part of patients with polymyalgia rheumatica (PMR) are refractory to the 2015 EULAR/ACR algorism for the management of PMR. Recent reports have demonstrated that tocilizumab (TCZ) may be efficacious for refractory and relapsing PMR.Objectives:To determine the real-world efficacy of the 2015 EULAR/ACR algorism for the management of PMR plus introduction of TCZ for refractory and relapsing PMR.Methods:Patients who had been diagnosed with PMR according to the 2012 EULAR/ACR provisional classification criteria for PMR were recruited in the study. Registered variables included demographic data, disease characteristics, prednisolone (PSL) dosage and duration, addition of methotrexate (MTX) and TCZ, adverse effects, and clinical outcomes.Results:There were 101 patients who had originally diagnosed as PMR (50 males and 65 females) and followed up for at least one year; the mean ± SD age at onset was 73 ±11 years at onset, with the mean observational period being 44 ± 26 months. Their treatments were initiated with PSL of 15.5 ± 4.3 mg/day. 41 patients experienced disease recurrence after 9.6 ± 6.7 months (median 9 month) of GC therapy, while receiving PSL at 5 ± 4.5 mg/day (3.7 mg/day). Baseline factors that were associated with relapse in our cohort were higher-grade thrombocytosis and higher-dose of initial GC by multivariate analysis. In 30 of the 41 patients who failed GC monotherapy, MTX was added. Five patients reached GC-free remission, but 25 patients failed GC tapering. In such refractory patients to a combination of GC plus MTX, 8 patients agreed to add TCZ therapy, and 5 of them reached drug-free remission. At present, 67 of the total 101 patients maintained drug-free remission, but most others were still receiving low-dose GC and/or MTX (n=17). No significant adverse effects did not occur during therapy, except for GC-related adverse effects such as diabetes, dyslipidemia and osteoprotic fractures.Conclusion:Our experience indicated that there is notable heterogeneity across PMR patients in terms of drug response, and the patients with severe inflammation, e.g. thrombocytosis, may need higher-dose of initial GC and addition of biologics such as TCZ on the 2015 EULAR/ACR algorism.Acknowledgments:NoneDisclosure of Interests:None declared
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Komiya K, Komori M, Noda C, Kobayashi S, Yoshimura T, Yamamura M. Leak-free million-fold DNA amplification with locked nucleic acid and targeted hybridization in one pot. Org Biomol Chem 2020; 17:5708-5713. [PMID: 30964494 DOI: 10.1039/c9ob00521h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An isothermal cascade reaction that exponentially amplifies pre-designed, single-stranded DNA as a sensor and signal amplifier module for DNA-based computing and molecular robotics was developed. Taking advantage of the finding that locked nucleic acid can suppress problematic ab initio DNA synthesis, up to million-fold amplification rates and concurrent hybridization were achieved at a physiological temperature in a single reactor. Although the effect of locked nucleic acid introduction to the templates was complicated, undesired leak DNA amplification was generally suppressed in the amplification reaction for distinct DNA sequences. The present reaction that senses one DNA as an input and generates a large amount of another DNA as an output, exhibiting a high correlation between the molecular concentration and the amplification time, is applicable for nucleic acid quantification.
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Affiliation(s)
- K Komiya
- School of Computing, Tokyo Institute of Technology, 4259, Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan.
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Lam PY, Lui ACW, Yamamura M, Wang L, Takeda Y, Suzuki S, Liu H, Zhu FY, Chen MX, Zhang J, Umezawa T, Tobimatsu Y, Lo C. Recruitment of specific flavonoid B-ring hydroxylases for two independent biosynthesis pathways of flavone-derived metabolites in grasses. New Phytol 2019; 223:204-219. [PMID: 30883799 DOI: 10.1111/nph.15795] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 03/08/2019] [Indexed: 05/19/2023]
Abstract
In rice (Oryza sativa), OsF2H and OsFNSII direct flavanones to independent pathways that form soluble flavone C-glycosides and tricin-type metabolites (both soluble and lignin-bound), respectively. Production of soluble tricin metabolites requires CYP75B4 as a chrysoeriol 5'-hydroxylase. Meanwhile, the close homologue CYP75B3 is a canonical flavonoid 3'-hydroxylase (F3'H). However, their precise roles in the biosynthesis of soluble flavone C-glycosides and tricin-lignins in cell walls remain unknown. We examined CYP75B3 and CYP75B4 expression in vegetative tissues, analyzed extractable flavonoid profiles, cell wall structure and digestibility of their mutants, and investigated catalytic activities of CYP75B4 orthologues in grasses. CYP75B3 and CYP75B4 showed co-expression patterns with OsF2H and OsFNSII, respectively. CYP75B3 is the sole F3'H in flavone C-glycosides biosynthesis, whereas CYP75B4 alone provides sufficient 3',5'-hydroxylation for tricin-lignin deposition. CYP75B4 mutation results in production of apigenin-incorporated lignin and enhancement of cell wall digestibility. Moreover, tricin pathway-specific 3',5'-hydroxylation activities are conserved in sorghum CYP75B97 and switchgrass CYP75B11. CYP75B3 and CYP75B4 represent two different pathway-specific enzymes recruited together with OsF2H and OsFNSII, respectively. Interestingly, the OsF2H-CYP75B3 and OsFNSII-CYP75B4 pairs appear to be conserved in grasses. Finally, manipulation of tricin biosynthesis through CYP75B4 orthologues can be a promising strategy to improve digestibility of grass biomass for biofuel and biomaterial production.
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Affiliation(s)
- Pui Ying Lam
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Andy C W Lui
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Lanxiang Wang
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Yuri Takeda
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Hongjia Liu
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Fu-Yuan Zhu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, 210037, China
| | - Mo-Xian Chen
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
- Research Unit for Global Sustainability Studies, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Clive Lo
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
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9
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Nagasaka T, Tanioka H, Nyuya A, Katata Y, Okawaki M, Yamamura M, Kawai T, Yasui K, Toshima T, Mori Y, Umeda Y, Tsuruta A, Ueno T, Yamaguchi Y. Poor prognosis of hypermutant colorectal cancer with KRAS mutations: A retrospective analysis of 1,052 Japanese colorectal cancer patients without treatment of immuno-checkpoint inhibitors. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.260] [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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10
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Miyamoto T, Takada R, Tobimatsu Y, Takeda Y, Suzuki S, Yamamura M, Osakabe K, Osakabe Y, Sakamoto M, Umezawa T. OsMYB108 loss-of-function enriches p-coumaroylated and tricin lignin units in rice cell walls. Plant J 2019; 98:975-987. [PMID: 30773774 DOI: 10.1111/tpj.14290] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/08/2019] [Accepted: 02/14/2019] [Indexed: 05/23/2023]
Abstract
Breeding approaches to enrich lignins in biomass could be beneficial to improving the biorefinery process because lignins increase biomass heating value and represent a potent source of valuable aromatic chemicals. However, despite the fact that grasses are promising lignocellulose feedstocks, limited information is yet available for molecular-breeding approaches to upregulate lignin biosynthesis in grass species. In this study, we generated lignin-enriched transgenic rice (Oryza sativa), a model grass species, via targeted mutagenesis of the transcriptional repressor OsMYB108 using CRISPR/Cas9-mediated genome editing. The OsMYB108-knockout rice mutants displayed increased expressions of lignin biosynthetic genes and enhanced lignin deposition in culm cell walls. Chemical and two-dimensional nuclear magnetic resonance (NMR) analyses revealed that the mutant cell walls were preferentially enriched in γ-p-coumaroylated and tricin lignin units, both of which are typical and unique components in grass lignins. NMR analysis also showed that the relative abundances of major lignin linkage types were altered in the OsMYB108 mutants.
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Affiliation(s)
- Takuji Miyamoto
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Rie Takada
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Yuri Takeda
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Keishi Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Yuriko Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Masahiro Sakamoto
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
- Research Unit for Development of Global Sustainability, Kyoto University, Uji, Kyoto, 611-0011, Japan
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11
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Esaki H, Tachi T, Goto C, Noguchi Y, Tanaka K, Aoyama S, Yasuda M, Mizui T, Yamamura M, Teramachi H. Relationship Between Initial Renal Function and the Inhibitory Effect of Dipeptidyl Peptidase-4 Inhibitor Treatment on Renal Function Decline. Pharmazie 2019; 74:374-382. [PMID: 31138377 DOI: 10.1691/ph.2019.8973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We retrospectively investigated the renal function index of patients with type 2 diabetes mellitus (T2DM) to examine the influence of dipeptidyl peptidase-4 (DPP-4) inhibitors on renal function between patients up to early nephropathy and after overt nephropathy. Patients with T2DM (>18 years old) who had been prescribed hypoglycemic agents for ≥3 months at Gifu Municipal Hospital between March 2010 and April 2014 were included in the study. Renal function was evaluated as the estimated glomerular filtration rate (eGFR) decline from baseline at 12 months. Patients in the DPP-4 inhibitor-treated and untreated groups with an eGFR ≥60 (358 [58.2 %] and 257 [41.8 %], respectively) and eGFR <60 (115 [60.2 %] and 76 [39.8 %], respectively) were subjected to multiple logistic regression analysis. Among patients with an eGFR ≥60, no significant differences were observed in eGFR decline rates over time. However, among patients with an eGFR <60, significant decreases were observed in eGFR decline rates >10 % (6 months; odds ratio, 0.476; P = 0.043, 12 months; odds ratio, 0.413; P = 0.010). Similar results were obtained for an eGFR decline rate >20 % (12 months; odds ratio, 0.369; P = 0.049). DPP-4 inhibitors are renoprotective in patients with T2DM and an eGFR <60.
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12
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Suzuki S, Suzuki H, Tanaka K, Yamamura M, Shibata D, Umezawa T. De novo transcriptome analysis of needles of Thujopsis dolabrata var. hondae. Plant Biotechnol (Tokyo) 2019; 36:113-118. [PMID: 31768112 PMCID: PMC6847777 DOI: 10.5511/plantbiotechnology.19.0220a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/20/2019] [Indexed: 06/10/2023]
Abstract
Podophyllotoxin is a starting material of the semisynthetic anticancer medicines etoposide, teniposide, and etopophos. The major plant source of podophyllotoxin is rhizomes of Podophyllum hexandrum, which is a Himalayan endangered species; therefore, alternative sources of podophyllotoxin or bioproduction systems have been pursued to avoid exploiting this limited natural resource. In this paper, we report de novo transcriptome analysis of Thujopsis dolablata var. hondae, which accumulates the podophyllotoxin derivatives (deoxypodophyllotoxin and β-peltatin A methyl ether) in its needles. We analyzed transcriptomes of the T. dolablata var. hondae young needles to obtain the sequences that putatively encode O-methyltransferases, cytochrome P450s, and a 2-oxoglutarate dependent dioxygenase because these protein families are responsible for podophyllotoxin-related compound formation in P. hexandrum. The resulting transcriptomes contained considerable numbers of coding sequences classified into the three protein families. Our results are a genetic basis for identifying genes involved in the biosynthesis of podophyllotoxin and related compounds and also for future metabolic engineering of podophyllotoxin in heterologous hosts.
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Affiliation(s)
- Shiro Suzuki
- Research Institute of Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
- Institute of Sustainability Science, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hideyuki Suzuki
- Kazusa DNA Research Institute, Kisarazu, Chiba 275-4242, Japan
| | - Koji Tanaka
- Forestry and Forest Products Research Institute, Aomori Prefectural Industrial Research Center, Hiranai, Aomori 039-3321, Japan
| | - Masaomi Yamamura
- Research Institute of Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Daisuke Shibata
- Kazusa DNA Research Institute, Kisarazu, Chiba 275-4242, Japan
| | - Toshiaki Umezawa
- Research Institute of Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
- Institute of Sustainability Science, Kyoto University, Uji, Kyoto 611-0011, Japan
- Research Unit for Development of Global Sustainability, Kyoto University, Uji, Kyoto 611-0011, Japan
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13
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Katata Y, Nagasaka T, Tanioka H, Nyuya A, Toshima T, Mori Y, Shigeyasu K, Okawaki M, Yamamura M, Tsuruta A, Ueno T, Yamaguchi Y. Efficacy of ramucirumab in combination with second-line or salvage-line FOLFIRI in patients with metastatic colorectal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy431.018] [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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14
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Yamamura M, Yamauchi A, Katase N, Katata Y, Tanioka H, Okawaki M, Nagasaka T, Yamaguchi Y. Heat shock protein 90 (HSP90) inhibitor as a candidate treatment option for gastrointestinal stromal tumor with acquired resistance for conventional receptor tyrosine kinase inhibitors. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy299.020] [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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15
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Nagasaka T, Nyuya A, Tanioka H, Katata Y, Yokota M, Taniguchi F, Kawai T, Mori Y, Shigeyasu K, Okawaki M, Yamamura M, Umeda Y, Tsuruta A, Ueno T, Yamaguchi Y. Distinct clinico-pathological features of hypermutant colorectal cancers with POLE pathogenic mutations, Lynch syndrome and sporadic MSI analyzed over 1,000 colorectal cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.079] [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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16
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Takeda Y, Tobimatsu Y, Karlen SD, Koshiba T, Suzuki S, Yamamura M, Murakami S, Mukai M, Hattori T, Osakabe K, Ralph J, Sakamoto M, Umezawa T. Downregulation of p-COUMAROYL ESTER 3-HYDROXYLASE in rice leads to altered cell wall structures and improves biomass saccharification. Plant J 2018; 95:796-811. [PMID: 29890017 DOI: 10.1111/tpj.13988] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/25/2018] [Accepted: 05/30/2018] [Indexed: 05/02/2023]
Abstract
p-Coumaroyl ester 3-hydroxylase (C3'H) is a key enzyme involved in the biosynthesis of lignin, a phenylpropanoid polymer that is the major constituent of secondary cell walls in vascular plants. Although the crucial role of C3'H in lignification and its manipulation to upgrade lignocellulose have been investigated in eudicots, limited information is available in monocotyledonous grass species, despite their potential as biomass feedstocks. Here we address the pronounced impacts of C3'H deficiency on the structure and properties of grass cell walls. C3'H-knockdown lines generated via RNA interference (RNAi)-mediated gene silencing, with about 0.5% of the residual expression levels, reached maturity and set seeds. In contrast, C3'H-knockout rice mutants generated via CRISPR/Cas9-mediated mutagenesis were severely dwarfed and sterile. Cell wall analysis of the mature C3'H-knockdown RNAi lines revealed that their lignins were largely enriched in p-hydroxyphenyl (H) units while being substantially reduced in the normally dominant guaiacyl (G) and syringyl (S) units. Interestingly, however, the enrichment of H units was limited to within the non-acylated lignin units, with grass-specific γ-p-coumaroylated lignin units remaining apparently unchanged. Suppression of C3'H also resulted in relative augmentation in tricin residues in lignin as well as a substantial reduction in wall cross-linking ferulates. Collectively, our data demonstrate that C3'H expression is an important determinant not only of lignin content and composition but also of the degree of cell wall cross-linking. We also demonstrated that C3'H-suppressed rice displays enhanced biomass saccharification.
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Affiliation(s)
- Yuri Takeda
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Steven D Karlen
- US Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Taichi Koshiba
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Shinya Murakami
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Mai Mukai
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takefumi Hattori
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Keishi Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Kuramoto-cho, Tokushima, 770-8503, Japan
| | - John Ralph
- US Department of Energy Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, 53726, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Masahiro Sakamoto
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
- Research Unit for Development of Global Sustainability, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
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17
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Miyamoto T, Yamamura M, Tobimatsu Y, Suzuki S, Kojima M, Takabe K, Terajima Y, Mihashi A, Kobayashi Y, Umezawa T. A comparative study of the biomass properties of Erianthus and sugarcane: lignocellulose structure, alkaline delignification rate, and enzymatic saccharification efficiency. Biosci Biotechnol Biochem 2018; 82:1143-1152. [PMID: 29558856 DOI: 10.1080/09168451.2018.1447358] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A comprehensive understanding of the structure and properties of gramineous lignocelluloses is needed to facilitate their uses in biorefinery. In this study, lignocelluloses from fractionated internode tissues of two taxonomically close species, Erianthus arundinaceus and sugarcane (Saccharum spp.), were characterized. Our analyses determined that syringyl (S) lignins were predominant over guaiacyl (G) or p-hydroxyphenyl (H) lignins in sugarcane tissues; on the other hand, S lignin levels were similar to those of G lignin in Erianthus tissues. In addition, tricin units were detected in sugarcane tissues, but not in Erianthus tissues. Distributions of lignin inter-monomeric linkage types were also different in Erianthus and sugarcane tissues. Alkaline treatment removed lignins from sugarcane tissues more efficiently than Erianthus tissues, resulting in a higher enzymatic digestibility of sugarcane tissues compared with Erianthus tissues. Our data indicate that Erianthus biomass displayed resistance to alkaline delignification and enzymatic digestion.
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Affiliation(s)
- Takuji Miyamoto
- a Research Institute for Sustainable Humanosphere, Kyoto University , Uji, Kyoto , Japan
| | - Masaomi Yamamura
- a Research Institute for Sustainable Humanosphere, Kyoto University , Uji, Kyoto , Japan
| | - Yuki Tobimatsu
- a Research Institute for Sustainable Humanosphere, Kyoto University , Uji, Kyoto , Japan
| | - Shiro Suzuki
- a Research Institute for Sustainable Humanosphere, Kyoto University , Uji, Kyoto , Japan
| | - Miho Kojima
- b Graduate School of Agriculture , Kyoto University , Kyoto , Japan
| | - Keiji Takabe
- b Graduate School of Agriculture , Kyoto University , Kyoto , Japan
| | - Yoshifumi Terajima
- c Tropical Agricultural Research Front, Japan International Research Center for Agricultural Sciences , Ishigaki , Japan
| | - Asako Mihashi
- d Tsukuba Laboratory , AIST Tsukuba Central 6, Japan Bioindustry Association , Tsukuba , Japan
| | - Yoshinori Kobayashi
- d Tsukuba Laboratory , AIST Tsukuba Central 6, Japan Bioindustry Association , Tsukuba , Japan
| | - Toshiaki Umezawa
- a Research Institute for Sustainable Humanosphere, Kyoto University , Uji, Kyoto , Japan.,e Research Unit for Development of Global Sustainability , Kyoto University , Uji, Kyoto , Japan
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18
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Sakurada H, Yasuhara K, Kato K, Asano S, Yoshida M, Yamamura M, Tachi T, Teramachi H. An investigation of visual hallucinations associated with voriconazole administration to patients with hematological malignancies. Pharmazie 2018; 71:660-664. [PMID: 29441972 DOI: 10.1691/ph.2016.6725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Voriconazole (VRCZ) is commonly administered to treat fungal infections in patients with hematological malignancies. Some of these patients experience VRCZ-associated visual hallucinations. We conducted a retrospective survey to investigate the characteristic features of this side effect. Patients with hematological malignancies who were treated with VRCZ for a fungal infection after hospitalization at Ichinomiya municipal hospital between 1 October 2005 and 31 December 2015 were included in this study (n = 103). Fifteen of these (14.6%) reported visual hallucinations that started on day 1-7. Seven of these 15 patients developed this symptom rapidly (day 1 or 2). Three patients had transient symptoms (lasting 2-12 days), 6 patients experienced hallucinations throughout the treatment, and the duration was unknown in 6 patients. Eleven patients experienced visual hallucinations when their eyes were closed (73 %) and these disappeared when they opened their eyes. One patient had visual hallucinations with open eyes, while the state of the eyes was unknown in 3 patients. The patients saw a range of images including people, animals, landscapes, and foods; several reported seeing images like those found in movies. In addition, 9 of 15 patients (60%) with visual hallucinations had visual disturbances. This was a higher proportion than that observed in patients who did not develop hallucinations (17 of 88; 19.3 %; P < 0.05). However, we found no significant difference between the blood VCRZ concentrations of patients who developed or did not develop visual hallucinations. This study indicated that most of these patients had visual hallucinations that manifested on eye closure, and they did not progress to serious mental illness. Our findings emphasized the importance of fully explaining the features of this symptom to each patient prior to starting VRCZ administration in order to reduce anxiety. In addition, since VRCZ discontinuation will compromise patient management, therapeutic drug monitoring should be used to increase the likelihood of successful therapy.
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19
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Tarmadi D, Tobimatsu Y, Yamamura M, Miyamoto T, Miyagawa Y, Umezawa T, Yoshimura T. NMR studies on lignocellulose deconstructions in the digestive system of the lower termite Coptotermes formosanus Shiraki. Sci Rep 2018; 8:1290. [PMID: 29358744 PMCID: PMC5778066 DOI: 10.1038/s41598-018-19562-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 01/03/2018] [Indexed: 11/09/2022] Open
Abstract
Termites represent one of the most efficient lignocellulose decomposers on earth. The mechanism by which termites overcome the recalcitrant lignin barrier to gain access to embedded polysaccharides for assimilation and energy remains largely unknown. In the present study, softwood, hardwood, and grass lignocellulose diets were fed to Coptotermes formosanus workers, and structural differences between the original lignocellulose diets and the resulting feces were examined by solution-state multidimensional nuclear magnetic resonance (NMR) techniques as well as by complementary wet-chemical methods. Overall, our data support the view that lignin polymers are partially decomposed during their passage through the termite gut digestive system, although polysaccharide decomposition clearly dominates the overall lignocellulose deconstruction process and the majority of lignin polymers remain intact in the digestive residues. High-resolution NMR structural data suggested preferential removal of syringyl aromatic units in hardwood lignins, but non-acylated guaiacyl units as well as tricin end-units in grass lignins. In addition, our data suggest that termites and/or their gut symbionts may favor degradation of C-C-bonded β-5 and resinol-type β-β lignin inter-monomeric units over degradation of ether-bonded β-O-4 units, which is in contrast to what has been observed in typical lignin biodegradation undertaken by wood-decaying fungi.
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Affiliation(s)
- Didi Tarmadi
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan.,Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Jl. Raya Bogor KM.46, Cibinong, Bogor, West Java, 16911, Indonesia
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan.
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan
| | - Takuji Miyamoto
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan
| | - Yasuyuki Miyagawa
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan.,Research Unit for Development and Global Sustainability, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Tsuyoshi Yoshimura
- Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto, 611-0011, Japan.
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20
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Tarmadi D, Yoshimura T, Tobimatsu Y, Yamamura M, Umezawa T. Effects of lignins as diet components on the physiological activities of a lower termite, Coptotermes formosanus Shiraki. J Insect Physiol 2017; 103:57-63. [PMID: 29038014 DOI: 10.1016/j.jinsphys.2017.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/25/2017] [Accepted: 10/12/2017] [Indexed: 06/07/2023]
Abstract
We investigated the effects of lignins as diet components on the physiological activities of a lower termite, Coptotermes formosanus Shiraki. Artificial diets composed of polysaccharides with and without purified lignins (milled-wood lignins) from Japanese cedar (softwood), Japanese beech (hardwood), and rice (grass), were fed to C. formosanus workers. The survival and body mass of the workers as well as the presence of three symbiotic protists in the hindguts of the workers were then periodically examined. The survival rates of workers fed on diets containing lignins were, regardless of the lignocellulose diet sources, significantly higher than those of workers fed on only polysaccharides. In addition, it was clearly observed that all the tested lignins have positive effects on the maintenance of two major protists in the hindguts of C. formosanus workers, i.e., Pseudotrichonympha grassii and Holomastigotoides hartmanni. Overall, our data suggest that the presence of lignin is crucial to maintaining the physiological activities of C. formosanus workers during their lignocellulose decomposition. Our data also suggested that some components, possibly minerals and/or non-structural carbohydrates, in grass lignocellulose negatively affect the survival of C. formosanus workers as well as the present rate of the symbiotic protists in their hindguts.
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Affiliation(s)
- Didi Tarmadi
- Laboratory of Innovative Humano-habitability, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan; Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Jl. Raya Bogor KM.46, Cibinong, Bogor, West Java 16911, Indonesia.
| | - Tsuyoshi Yoshimura
- Laboratory of Innovative Humano-habitability, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
| | - Yuki Tobimatsu
- Laboratory of Metabolic Science of Forest Plants & Microorganisms, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
| | - Masaomi Yamamura
- Laboratory of Metabolic Science of Forest Plants & Microorganisms, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
| | - Toshiaki Umezawa
- Laboratory of Metabolic Science of Forest Plants & Microorganisms, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
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21
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Takeda Y, Koshiba T, Tobimatsu Y, Suzuki S, Murakami S, Yamamura M, Rahman MM, Takano T, Hattori T, Sakamoto M, Umezawa T. Regulation of CONIFERALDEHYDE 5-HYDROXYLASE expression to modulate cell wall lignin structure in rice. Planta 2017; 246:337-349. [PMID: 28421330 DOI: 10.1007/s00425-017-2692-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 04/11/2017] [Indexed: 05/22/2023]
Abstract
Regulation of a gene encoding coniferaldehyde 5-hydroxylase leads to substantial alterations in lignin structure in rice cell walls, identifying a promising genetic engineering target for improving grass biomass utilization. The aromatic composition of lignin greatly affects utilization characteristics of lignocellulosic biomass and, therefore, has been one of the primary targets of cell wall engineering studies. Limited information is, however, available regarding lignin modifications in monocotyledonous grasses, despite the fact that grass lignocelluloses have a great potential for feedstocks of biofuel production and various biorefinery applications. Here, we report that manipulation of a gene encoding coniferaldehyde 5-hydroxylase (CAld5H, or ferulate 5-hydroxylase, F5H) leads to substantial alterations in syringyl (S)/guaiacyl (G) lignin aromatic composition in rice (Oryza sativa), a major model grass and commercially important crop. Among three CAld5H genes identified in rice, OsCAld5H1 (CYP84A5) appeared to be predominantly expressed in lignin-producing rice vegetative tissues. Down-regulation of OsCAld5H1 produced altered lignins largely enriched in G units, whereas up-regulation of OsCAld5H1 resulted in lignins enriched in S units, as revealed by a series of wet-chemical and NMR structural analyses. Our data collectively demonstrate that OsCAld5H1 expression is a major factor controlling S/G lignin composition in rice cell walls. Given that S/G lignin composition affects various biomass properties, we contemplate that manipulation of CAld5H gene expression represents a promising strategy to upgrade grass biomass for biorefinery applications.
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Affiliation(s)
- Yuri Takeda
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Taichi Koshiba
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
- EARTHNOTE Co. Ltd., Nago, Okinawa, 905-1152, Japan
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Shinya Murakami
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Md Mahabubur Rahman
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Toshiyuki Takano
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takefumi Hattori
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan
- Faculty of Bioscience and Bioindustry, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, 770-8513, Japan
| | - Masahiro Sakamoto
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto, 611-0011, Japan.
- Research Unit for Global Sustainability Studies, Kyoto University, Uji, Kyoto, 611-0011, Japan.
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Lam PY, Tobimatsu Y, Takeda Y, Suzuki S, Yamamura M, Umezawa T, Lo C. Disrupting Flavone Synthase II Alters Lignin and Improves Biomass Digestibility. Plant Physiol 2017; 174:972-985. [PMID: 28385728 PMCID: PMC5462022 DOI: 10.1104/pp.16.01973] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 03/30/2017] [Indexed: 05/02/2023]
Abstract
Lignin, a ubiquitous phenylpropanoid polymer in vascular plant cell walls, is derived primarily from oxidative couplings of monolignols (p-hydroxycinnamyl alcohols). It was discovered recently that a wide range of grasses, including cereals, utilize a member of the flavonoids, tricin (3',5'-dimethoxyflavone), as a natural comonomer with monolignols for cell wall lignification. Previously, we established that cytochrome P450 93G1 is a flavone synthase II (OsFNSII) indispensable for the biosynthesis of soluble tricin-derived metabolites in rice (Oryza sativa). Here, our tricin-deficient fnsII mutant was analyzed further with an emphasis on its cell wall structure and properties. The mutant is similar in growth to wild-type control plants with normal vascular morphology. Chemical and nuclear magnetic resonance structural analyses demonstrated that the mutant lignin is completely devoid of tricin, indicating that FNSII activity is essential for the deposition of tricin-bound lignin in rice cell walls. The mutant also showed substantially reduced lignin content with decreased syringyl/guaiacyl lignin unit composition. Interestingly, the loss of tricin in the mutant lignin appears to be partially compensated by incorporating naringenin, which is a preferred substrate of OsFNSII. The fnsII mutant was further revealed to have enhanced enzymatic saccharification efficiency, suggesting that the cell wall recalcitrance of grass biomass may be reduced through the manipulation of the flavonoid monomer supply for lignification.
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Affiliation(s)
- Pui Ying Lam
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China (P.Y.L., C.L.); and
- Research Institute for Sustainable Humanosphere (Y.To., Y.Ta., S.S., M.Y., T.U.) and Research Unit for Global Sustainability Studies (T.U.), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yuki Tobimatsu
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China (P.Y.L., C.L.); and
- Research Institute for Sustainable Humanosphere (Y.To., Y.Ta., S.S., M.Y., T.U.) and Research Unit for Global Sustainability Studies (T.U.), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yuri Takeda
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China (P.Y.L., C.L.); and
- Research Institute for Sustainable Humanosphere (Y.To., Y.Ta., S.S., M.Y., T.U.) and Research Unit for Global Sustainability Studies (T.U.), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Shiro Suzuki
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China (P.Y.L., C.L.); and
- Research Institute for Sustainable Humanosphere (Y.To., Y.Ta., S.S., M.Y., T.U.) and Research Unit for Global Sustainability Studies (T.U.), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Masaomi Yamamura
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China (P.Y.L., C.L.); and
- Research Institute for Sustainable Humanosphere (Y.To., Y.Ta., S.S., M.Y., T.U.) and Research Unit for Global Sustainability Studies (T.U.), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Toshiaki Umezawa
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China (P.Y.L., C.L.); and
- Research Institute for Sustainable Humanosphere (Y.To., Y.Ta., S.S., M.Y., T.U.) and Research Unit for Global Sustainability Studies (T.U.), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Clive Lo
- School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China (P.Y.L., C.L.); and
- Research Institute for Sustainable Humanosphere (Y.To., Y.Ta., S.S., M.Y., T.U.) and Research Unit for Global Sustainability Studies (T.U.), Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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Koshiba T, Yamamoto N, Tobimatsu Y, Yamamura M, Suzuki S, Hattori T, Mukai M, Noda S, Shibata D, Sakamoto M, Umezawa T. MYB-mediated upregulation of lignin biosynthesis in Oryza sativa towards biomass refinery. Plant Biotechnol (Tokyo) 2017; 34:7-15. [PMID: 31275003 PMCID: PMC6543701 DOI: 10.5511/plantbiotechnology.16.1201a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 12/01/2016] [Indexed: 05/04/2023]
Abstract
Lignin encrusts lignocellulose polysaccharides, and has long been considered an obstacle for the efficient use of polysaccharides during processes such as pulping and bioethanol fermentation. However, lignin is also a potential feedstock for aromatic products and is an important by-product of polysaccharide utilization. Therefore, producing biomass plant species exhibiting enhanced lignin production is an important breeding objective. Herein, we describe the development of transgenic rice plants with increased lignin content. Five Arabidopsis thaliana (Arabidopsis) and one Oryza sativa (rice) MYB transcription factor genes that were implicated to be involved in lignin biosynthesis were transformed into rice (O. sativa L. ssp. japonica cv. Nipponbare). Among them, three Arabidopsis MYBs (AtMYB55, AtMYB61, and AtMYB63) in transgenic rice T1 lines resulted in culms with lignin content about 1.5-fold higher than that of control plants. Furthermore, lignin structures in AtMYB61-overexpressing rice plants were investigated by wet-chemistry and two-dimensional nuclear magnetic resonance spectroscopy approaches. Our data suggested that heterologous expression of AtMYB61 in rice increased lignin content mainly by enriching syringyl units as well as p-coumarate and tricin moieties in the lignin polymers. We contemplate that this strategy is also applicable to lignin upregulation in large-sized grass biomass plants, such as Sorghum, switchgrass, Miscanthus and Erianthus.
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Affiliation(s)
- Taichi Koshiba
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Naoki Yamamoto
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Masaomi Yamamura
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shiro Suzuki
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takefumi Hattori
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Mai Mukai
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Soichiro Noda
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Daisuke Shibata
- Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Masahiro Sakamoto
- Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan
- E-mail: Tel: +81-75-753-6464 Fax: +81-75-753-6471
| | - Toshiaki Umezawa
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
- Research Unit for Global Sustainability Studies, Kyoto University, Uji, Kyoto 611-0011, Japan
- E-mail: Tel: +81-774-38-3625 Fax: +81-774-38-3682
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Fukui S, Tanaka H, Kobayashi K, Kajiyama T, Mitsuno M, Yamamura M, Ryomoto M, Miyamoto Y. Development of Collaterals to the Spinal Cord After Endovascular Stent Graft Repair of Thoracic Aneurysms. J Vasc Surg 2017. [DOI: 10.1016/j.jvs.2016.11.006] [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: 11/26/2022]
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Fukui S, Tanaka H, Kobayashi K, Kajiyama T, Mitsuno M, Yamamura M, Ryomoto M, Miyamoto Y. Development of Collaterals to the Spinal Cord after Endovascular Stent Graft Repair of Thoracic Aneurysms. Eur J Vasc Endovasc Surg 2016; 52:801-807. [PMID: 27776939 DOI: 10.1016/j.ejvs.2016.09.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 09/18/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVES In thoracic and thoraco-abdominal aortic aneurysm repair, spinal cord injury (SCI) is devastating. Detection of the Adamkiewicz artery might be important for preventing SCI. Although thoracic endovascular stent grafts often occlude the segmental artery, the incidence of SCI in thoracic endovascular aortic repair is thought to be low compared with open repair. This study aimed to evaluate how the Adamkiewicz artery is supplied after segmental arteries are occluded by stent grafts. METHODS From March 2007 to August 2015, 32 patients were enrolled whose segmental arteries that were connected to the Adamkiewicz arteries were occluded by stent grafts. Segmental arteries, Adamkiewicz arteries, collateral circulation into the Adamkiewicz arteries, and anterior spinal arteries were pre- and post-operatively evaluated by computed tomography angiography. RESULTS Post-operatively, Adamkiewicz arteries were detected in 24 (75%) patients, except for two patients with paraplegia and six without paraplegia. Post-operative Adamkiewicz arteries were the same as pre-operative Adamkiewicz arteries, except for one Adamkiewicz artery that was located at two vertebral levels below the pre-operative level. SCI occurred in two (6.3%) patients. The distribution of feeding arteries into the Adamkiewicz artery post-operatively was divided into three patterns as follows: a segmental artery below the distal landing zone of the stent graft (53%), branches of the left subclavian artery (33%), and a branch of the left external iliac artery (13%). CONCLUSIONS The length of the stent graft should be as short as possible. Blood supply to the left subclavian artery should be maintained because segmental arteries below the segmental artery occluded by the stent graft and branches of the left subclavian artery can become collaterals post-operatively.
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Affiliation(s)
- S Fukui
- Department of Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan.
| | - H Tanaka
- Department of Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - K Kobayashi
- Department of Radiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - T Kajiyama
- Department of Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - M Mitsuno
- Department of Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - M Yamamura
- Department of Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - M Ryomoto
- Department of Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Y Miyamoto
- Department of Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan
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Yamamura M, Takizawa H, Gobo Y, Nabeshima T. Stable neutral radicals of planar N2O2-type dipyrrin platinum complexes: hybrid radicals of the delocalized organic π-orbital and platinum d-orbital. Dalton Trans 2016; 45:6834-8. [PMID: 26875528 DOI: 10.1039/c5dt05039a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Neutral radicals of N2O2-dipyrrin platinum complexes were synthesized by the reaction of dipyrrin ligands with PtCl2(cod) and successive one-electron oxidation. The radicals are very stable even under aerobic and ambient conditions. X-ray crystallographic analysis revealed the stacking array of the planar dipyrrin complex moieties. The ESR signals were broadened and significantly downfield shifted. The absorption spectra exhibited NIR bands. These results indicated a delocalized radical character with a contribution by the platinum d-orbital.
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Affiliation(s)
- M Yamamura
- Graduate School of Pure & Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
| | - H Takizawa
- Graduate School of Pure & Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
| | - Y Gobo
- Graduate School of Pure & Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
| | - T Nabeshima
- Graduate School of Pure & Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8571, Japan.
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Abstract
AIMS We investigated changes in the axial alignment of the ipsilateral hip and knee after total hip arthroplasty (THA). PATIENTS AND METHODS We reviewed 152 patients undergoing primary THA (163 hips; 22 hips in men, 141 hips in women) without a pre-operative flexion contracture. The mean age was 64 years (30 to 88). The diagnosis was osteoarthritis (OA) in 151 hips (primary in 18 hips, and secondary to dysplasia in 133) and non-OA in 12 hips. A posterolateral approach with repair of the external rotators was used in 134 hips and an anterior approach in 29 hips. We measured changes in leg length and offset on radiographs, and femoral anteversion, internal rotation of the hip and lateral patellar tilt on CT scans, pre- and post-operatively. RESULTS The mean internal rotation increased by 11° (-15° to 46°) and was associated with underlying disease (OA), pre-operative range of internal rotation, gender, surgical approach, leg lengthening, and change of femoral anteversion (adjusted R(2) : 0.253, p < 0.001). The mean lateral patellar tilt increased by 4° (-5° to 14°) and was associated with age, leg lengthening, and increment of hip internal rotation (adjusted R(2): 0.193, p < 0.001). CONCLUSION Both internal rotation of the hip at rest and lateral patellar tilt are increased after THA. Changes in rotation after THA may affect gait, daily activities, the rate of dislocation of the hip, and ipsilateral knee pain. TAKE HOME MESSAGE Internal rotation of the hip at rest and lateral patellar tilt increase after THA.
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Affiliation(s)
| | - K Nakata
- Japan Community Healthcare Organization Osaka Hospital, 4-2-78, Fukushima, Fukushima-ku, Osaka, 553-0003, Japan
| | - M Kitada
- Japan Community Healthcare Organization Osaka Hospital, 4-2-78, Fukushima, Fukushima-ku, Osaka, 553-0003, Japan
| | - M Yamamura
- Osaka Rosai Hospital, 1179-3, Nagasone-cho, Kita-ku, Sakai, 591-8025, Japan
| | - T Ohori
- Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, 565-0871, Japan
| | - H Owaki
- Japan Community Healthcare Organization Osaka Hospital, 4-2-78, Fukushima, Fukushima-ku, Osaka, 553-0003, Japan
| | - T Fuji
- Japan Community Healthcare Organization Osaka Hospital, 4-2-78, Fukushima, Fukushima-ku, Osaka, 553-0003, Japan
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Ueno A, Yamamura Y, Fujita K, Shibutou N, Yamamura M. SAT0339 The Efficacy of The 2015 Eular/acr Recommendations for The Management of Polymyalgia Rheumatica in Japanese Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5442] [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: 11/04/2022]
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Yamamura Y, Fujita K, Shibutou N, Ueno A, Yamamura M. AB0834 Acute Calcium Pyrophosphate Crystal Arthritis as A Cause of Sudden Onset of Fever and Arthritis in Geriatric Patients. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5310] [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: 11/04/2022]
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Fujita K, Yamamura Y, Nomura Y, Shibutou N, Ueno A, Maruyama K, Ombe T, Hiramatsu M, Yamamura M. SAT0172 Comparison of Efficacy and Safety of Biologic Agents between Elderly-Onset and Younger-Onset Rheumatoid Arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5388] [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: 11/04/2022]
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Sawaki A, Yamamura M, Katata Y, Okawaki M, Yamaguchi Y, Hirai T. 364P Imatinib plasma levels and clinical features of successful long-term treatment of metastatic gastrointestinal stromal tumors. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv530.07] [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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Arcêncio RA, de Almeida Crispim J, Touso MM, Popolin MP, Rodrigues LBB, de Freitas IM, Yamamura M, Neto MS. Preliminary validation of an instrument to assess social support and tuberculosis stigma in patients' families. Public Health Action 2015; 4:195-200. [PMID: 26400810 DOI: 10.5588/pha.13.0095] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 07/22/2014] [Indexed: 11/10/2022] Open
Abstract
SETTING Ribeirão Preto, São Paulo, Brazil. OBJECTIVE To develop and validate a preliminary instrument for assessing social support and tuberculosis (TB) stigma in families of TB patients. DESIGN A literature review on social support and TB stigma was used to generate the theoretical domains for the instrument. A focus group was then conducted with TB patients and their families to revise the domains. Reviewers were invited to judge the appropriateness of the items in the instrument. A cross-sectional survey was carried out among 110 family members to assess the factorial structure using principal component analysis and confirmatory factor analysis to assess construct validity. Reliability was assessed in terms of internal consistency using Cronbach's alpha. RESULTS After semantic validation and a pilot study, 23 items were selected for the scale. Examination of the factorial structure of the 16 items that were factorable using principal component analysis led to the extraction of two factors. The 16-item instrument was assessed for construct validity with confirmatory factor analysis, which confirmed a model with four items for each dimension. CONCLUSION The study analysed the psychometric properties of an instrument that is still in its preliminary stages. Other studies on a similar scale in the Brazilian setting are required.
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Affiliation(s)
- R A Arcêncio
- Department of Maternal-Infantile Nursing and Public Health
| | - J de Almeida Crispim
- Nursing and Public Health Graduate Programme, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - M M Touso
- Nursing and Public Health Graduate Programme, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - M P Popolin
- Nursing and Public Health Graduate Programme, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - L B B Rodrigues
- Nursing and Public Health Graduate Programme, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - I M de Freitas
- Nursing and Public Health Graduate Programme, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - M Yamamura
- Nursing and Public Health Graduate Programme, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - M Santos Neto
- Nursing and Public Health Graduate Programme, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Yamamura Y, Matuura I, Nomura Y, Fujita K, Momoki N, Ueno A, Maruyama K, Hiramatu M, Yamamura M. THU0572 Heterogeneity of IGG4-Related Disease in Terms of Organ Damage, Treatment Response and Prognosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.6484] [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: 11/04/2022]
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Fujita K, Shibuto N, Yamamura Y, Nomura Y, Momoki N, Ueno A, Nakao K, Maruyama K, Yamamura M. SAT0539 TAFRO Syndrome: A Unique Mimicker of Systemic Lupus Erythematosus. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5875] [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: 11/04/2022]
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Makino H, Yoshinaga Y, Yamasaki Y, Morita Y, Hashimoto H, Yamamura M. Renal involvement in rheumatoid arthritis: analysis of renal biopsy specimens from 100 patients. Mod Rheumatol 2014; 12:148-54. [PMID: 24383903 DOI: 10.3109/s101650200025] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract We analyzed renal biopsy specimens from 100 patients to evaluate the characteristics of renal involvement in patients with rheumatoid arthritis (RA). Membranous nephropathy (MN) was the most common renal histological pattern (31%). Mesangial proliferative glomerulonephritis (GN) was found in 21% of cases (IgA nephropathy 12%, non-IgA GN 9%), minor changes in 17%, renal amyloidosis in 11%, interstitial nephritis in 9%, sclerotic GN in 4%, and crescentic GN in 2%. MN was relatively more frequent in men than in women, and most developed nephrotic syndrome, while a few developed renal failure. Disease-modifying antirheumatic drugs (DMARDs) correlated with MN in 26 of 31 cases. Mesangial proliferative GN showed high-grade hematuria. Amyloidosis correlated with long duration of RA; approximately half of the cases with amyloidosis also had nephrotic syndrome, and 82% developed renal failure. Of the 100 patients, 82% showed some tubulo-interstitial changes, which might be related to non-steroidal anti-inflammatory drugs. Because renal lesions in RA are very diverse, and early stage cases of MN and amyloidosis can be detected only by histological examinations, renal biopsy should be performed in cases with continuous urinary abnormalities or progressive renal failure.
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Affiliation(s)
- H Makino
- Department of Medicine and Clinical Science, Okayama University Graduate School of Medicine and Dentistry , 2-5-1 Shikata-cho, Okayama 700-8558 , Japan
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Yamamura M, Sada KE, Fujii T, Harigai M, Arimura Y, Makino H. AB0764 The 1st interim analysis of a prospective cohort study of ANCA-associated vasculitides in japan, the remIT-JAV study. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.764] [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: 11/04/2022]
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Yamamura M, Sada KE, Fujii T, Harigai M, Arimura Y, Makino H. FRI0233 Classification of 156 japanese patients with anca-associated vasculitides by using the european medicines agency algorism with the addition of surrogate markers for pulmonary vasculitis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.2690] [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: 11/04/2022]
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Yamamura M, Shibuto N. THU0473 The Present State of Diagnosis and Therapy for IgG4-Related Diseases in Our Hospital. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1001] [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: 11/03/2022]
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Zushi Y, Noguchi K, Yamamura M, Takaoka K, Moridera K, Segawa E, Okui S, Kishimoto H, Urade M. An in vitro multistep carcinogenesis model for both HPV-positive and -negative human oral squamous cell carcinoma. Int J Oral Maxillofac Surg 2011. [DOI: 10.1016/j.ijom.2011.07.145] [Citation(s) in RCA: 4] [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: 11/27/2022]
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Noquchi K, Hiromoto T, Yamamura M, Zushi Y, Segawa E, Takaoka K, Moridera K, Kishimoto H, Urade M. 8523 POSTER Up-regulation of Neutrophil Gelatinase-associated Lipocalin in Oral Squamous Cell Carcinoma – Relation to Cell Differentiation. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72165-7] [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: 10/17/2022]
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Yamamura M, Noguchi K, Segawa E, Zushi Y, Takaoka K, Kishimoto H, Urade M. 8524 POSTER A Functional Analysis of Zyxin in Epithelial-mesenchymal Transition of Oral Squamous Cell Carcinoma. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72166-9] [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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42
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Iwanaga M, Hsu WL, Soda M, Takasaki Y, Tawara M, Joh T, Amenomori T, Yamamura M, Yoshida Y, Koba T, Miyazaki Y, Matsuo T, Preston DL, Suyama A, Kodama K, Tomonaga M. Risk of Myelodysplastic Syndromes in People Exposed to Ionizing Radiation: A Retrospective Cohort Study of Nagasaki Atomic Bomb Survivors. J Clin Oncol 2011; 29:428-34. [PMID: 21149671 DOI: 10.1200/jco.2010.31.3080] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Purpose The risk of myelodysplastic syndromes (MDS) has not been fully investigated among people exposed to ionizing radiation. We investigate MDS risk and radiation dose-response in Japanese atomic bomb survivors. Patients and Methods We conducted a retrospective cohort study by using two databases of Nagasaki atomic bomb survivors: 64,026 people with known exposure distance in the database of Nagasaki University Atomic-Bomb Disease Institute (ABDI) and 22,245 people with estimated radiation dose in the Radiation Effects Research Foundation Life Span Study (LSS). Patients with MDS diagnosed from 1985 to 2004 were identified by record linkage between the cohorts and the Nagasaki Prefecture Cancer Registry. Cox and Poisson regression models were used to estimate relationships between exposure distance or dose and MDS risk. Results There were 151 patients with MDS in the ABDI cohort and 47 patients with MDS in the LSS cohort. MDS rate increased inversely with exposure distance, with an excess relative risk (ERR) decay per km of 1.2 (95% CI, 0.4 to 3.0; P < .001) for ABDI. MDS risk also showed a significant linear response to exposure dose level (P < .001) with an ERR per Gy of 4.3 (95% CI, 1.6 to 9.5; P < .001). After adjustment for sex, attained age, and birth year, the MDS risk was significantly greater in those exposed when young. Conclusion A significant linear radiation dose-response for MDS exists in atomic bomb survivors 40 to 60 years after radiation exposure. Clinicians should perform careful long-term follow-up of irradiated people to detect MDS as early as possible.
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Affiliation(s)
- Masako Iwanaga
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Wan-Ling Hsu
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Midori Soda
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Yumi Takasaki
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Masayuki Tawara
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Tatsuro Joh
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Tatsuhiko Amenomori
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Masaomi Yamamura
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Yoshiharu Yoshida
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Takashi Koba
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Yasushi Miyazaki
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Tatsuki Matsuo
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Dale L. Preston
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Akihiko Suyama
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Kazunori Kodama
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
| | - Masao Tomonaga
- From the Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Science; Kwassui Women's College; Radiation Effects Research Foundation; Japanese Red Cross Nagasaki Genbaku Hospital; St. Francis Hospital; Nagasaki Municipal Hospital; Nagasaki Atomic Bomb Casualty Council Health Management Center; and Nagasaki Municipal Medical Center, Nagasaki; Radiation Effects Research Foundation, Hiroshima, Japan; and Hirosoft International, Seattle, WA
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Tanaka N, Hidaka S, Yamamura M, Ohyama H, Urade M. Metastatic cutaneous carcinosarcoma to the tongue. Int J Oral Maxillofac Surg 2010; 39:1033-6. [DOI: 10.1016/j.ijom.2010.04.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2009] [Revised: 02/19/2010] [Accepted: 04/21/2010] [Indexed: 10/19/2022]
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Yamamura M, Suzuki S, Hattori T, Umezawa T. Subunit composition of hinokiresinol synthase controls enantiomeric selectivity in hinokiresinol formation. Org Biomol Chem 2010; 8:1106-10. [DOI: 10.1039/b918656e] [Citation(s) in RCA: 2] [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: 11/21/2022]
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Itoh K, Yamamura M, Muramatsu S, Hoshino K, Masubuchi A, Sasaki T, Tanaka Y. Stereospecific oxidation of the (S)-enantiomer of RS-8359, a selective and reversible monoamine oxidase A (MAO-A) inhibitor, by aldehyde oxidase. Xenobiotica 2008; 35:561-73. [PMID: 16192108 DOI: 10.1080/00498250500202106] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In a previous paper by the authors on RS-8359, a new selective and reversible monoamine oxidase A (MAO-A) inhibitor, it was reported that the (S)-enantiomer of RS-8359 is rapidly eliminated from rats, monkeys and humans as a result of the formation of a 2-oxidative metabolite. The present study investigates the properties of the enzyme responsible for the 2-oxidation of RS-8359. Subcellular localization, cofactor requirement and the inhibitory effects of typical compounds were studied using rat liver preparations. In addition, the enzyme was purified from rat liver cytosol for further characterization. The enzyme activity was localized in the cytosolic fraction without the need for any cofactor and was extensively inhibited by menadione, chlorpromazine and quinacrine. The purified enzyme was also a homodimer with a monomeric molecular weight of 140 kDa and it had an A280/A450 ratio of 5.1 in the absorption spectrum. The results suggest that the enzyme responsible for the biotransformation of RS-8359 to give the 2-keto derivative is aldehyde oxidase (EC 1.2.3.1). The reaction of aldehyde oxidase is highly stereoselective for the (S)-configuration of RS-8359 and the (9R)-configuration of cinchona alkaloids.
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Affiliation(s)
- K Itoh
- Department of Biopharmaceutics, Tohoku Pharmaceutical University, Sendai, Japan
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Matsuo E, Miyazaki Y, Tsutsumi C, Inoue Y, Yamasaki R, Hata T, Fukushima T, Tsushima H, Imanishi D, Imaizumi Y, Iwanaga M, Sakai M, Ando K, Sawayama Y, Ogawa D, Kawaguchi Y, Nagai K, Tsukasaki K, Ikeda S, Moriuchi Y, Yoshida S, Honda M, Taguchi J, Onimaru Y, Tsuchiya T, Tawara M, Atogami S, Yamamura M, Soda H, Yoshida Y, Matsuo Y, Nonaka H, Joh T, Takasaki Y, Kawasaki C, Momita S, Jinnai I, Kuriyama K, Tomonaga M. Imatinib provides durable molecular and cytogenetic responses in a practical setting for both newly diagnosed and previously treated chronic myelogenous leukemia: a study in nagasaki prefecture, Japan. Int J Hematol 2007; 85:132-9. [PMID: 17321991 DOI: 10.1532/ijh97.06157] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To evaluate the efficacy of imatinib in a practical setting, we registered 43 patients with newly diagnosed chronic myelogenous leukemia (CML) (group I) and 56 patients with previously diagnosed CML (group II) at 11 hematology centers in Nagasaki prefecture, Japan, from December 2001 to July 2005 and analyzed the molecular responses. Cytopenia, fluid retention, and skin rash were major adverse events, along with elevation in creatine phosphokinase levels. With a follow-up of approximately 3.5 years, imatinib treatment led to 88.7% overall survival (OS) and 85.2% progression-free survival (PFS) rates for group I, and 79.8% OS and 76.6% PFS rates for group II; the rates were not significantly different despite a lower average imatinib dose in group II. The rates of complete cytogenetic response at 30 months and major molecular response at 24 months were 86.1% and 62.5%, respectively, in group I, and 77.9% and 58.3% in group II; the rates were not significantly different. As has been reported by other groups, these results demonstrate that imatinib treatment can provide excellent clinical and molecular effects for not only newly diagnosed but also previously treated CML patients in practical settings that cover a wider variety of patients than clinical trials.
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MESH Headings
- Adolescent
- Adult
- Aged
- Antineoplastic Agents/administration & dosage
- Antineoplastic Agents/adverse effects
- Benzamides
- Creatine Kinase/blood
- Cytogenetic Analysis
- Disease-Free Survival
- Exanthema/chemically induced
- Female
- Follow-Up Studies
- Humans
- Imatinib Mesylate
- Japan
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/blood
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/mortality
- Male
- Middle Aged
- Piperazines/administration & dosage
- Piperazines/adverse effects
- Pyrimidines/administration & dosage
- Pyrimidines/adverse effects
- Remission Induction
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Affiliation(s)
- Emi Matsuo
- Department of Hematology and Molecular Medicine Unit, Atomic Bomb Disease Institute, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
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Abstract
Abstract
We present a lubrication model of thermo-capillary flows in moving volatile liquid film coatings. The forced air impingement from a slit nozzle onto the moving coating imposes an axi-symmetric surface temperature distribution, and thus the local surface-tension gradients on the liquid surface. Despite the symmetric temperature profile, local thickness variations became asymmetric and exhibited a particular ridge in downstream and a depression in upstream. The competing feature between the surface-tension-driven and the pressure-driven flows gives a characteristic growth and decay in the surface roughness as the temperature profile travels in the opposite direction to the moving coating. The model prediction showed that the surface roughness was first enhanced and then suppressed with increasing the impinging air velocity, suggesting some directions for achieving more uniform coatings at higher speeds.
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Affiliation(s)
- M. Yamamura
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, Japan
| | - T. Uchinomiya
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, Japan
| | - Y. Mawatari
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, Japan
| | - H. Kage
- Department of Applied Chemistry, Kyushu Institute of Technology, Fukuoka, Japan
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Tanaka H, Yao H, Mukai S, Yamamura M, Nakagawa T, Murata M, Ryomoto M, Okumura Y, Yoshioka Y, Kaji M. [Aortic valve replacement presence of anti-Jr(a) antibody]. Kyobu Geka 2005; 58:325-7. [PMID: 15828255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
A 65-year-old female with a heart murmur developed progressive symptom of chest oppression. She was diagnosed severe aortic valve stenosis with echocardiogram. Antibody screening revealed anti-Jr(a) antibody. Preoperatively, erythropoietin was administered. Over 14 days, a total 1,000 ml of her blood was drawn and stored for autologous transfusion. The aortic valve was replaced with ATS mechanical valve [18 mm advanced performance (AP)]. Following surgery, her stored blood was administered to him. But her HCT was 17% on the 1st postoperative day. Frozen thawed red cells were transferred 7th postoperative day.
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Affiliation(s)
- Hiroe Tanaka
- Department of Thoracic and Cardiovascular Surgery, Hyogo College of Medicine, Nishinomiya, Japan
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Iwanaga M, Soda M, Yamamura M, Atogami S, Yoshida Y, Momita S, Tomonaga M. O-2 Epidemiology of myelodysplasticsyndromes among Nagasaki atomic bomb survivors. Leuk Res 2005. [DOI: 10.1016/s0145-2126(05)80003-7] [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: 10/25/2022]
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