1
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Masuda K, Kuwada E, Suzuki M, Suzuki T, Niikawa T, Uchida S, Akagi T. Transcriptomic Interpretation on Explainable AI-Guided Intuition Uncovers Premonitory Reactions of Disordering Fate in Persimmon Fruit. Plant Cell Physiol 2023; 64:1323-1330. [PMID: 37225398 DOI: 10.1093/pcp/pcad050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 05/15/2023] [Accepted: 07/06/2023] [Indexed: 05/26/2023]
Abstract
Deep neural network (DNN) techniques, as an advanced machine learning framework, have allowed various image diagnoses in plants, which often achieve better prediction performance than human experts in each specific field. Notwithstanding, in plant biology, the application of DNNs is still mostly limited to rapid and effective phenotyping. The recent development of explainable CNN frameworks has allowed visualization of the features in the prediction by a convolutional neural network (CNN), which potentially contributes to the understanding of physiological mechanisms in objective phenotypes. In this study, we propose an integration of explainable CNN and transcriptomic approach to make a physiological interpretation of a fruit internal disorder in persimmon, rapid over-softening. We constructed CNN models to accurately predict the fate to be rapid softening in persimmon cv. Soshu, only with photo images. The explainable CNNs, such as Gradient-weighted Class Activation Mapping (Grad-Class Activation Mapping (CAM)) and guided Grad-CAM, visualized specific featured regions relevant to the prediction of rapid softening, which would correspond to the premonitory symptoms in a fruit. Transcriptomic analyses to compare the featured regions of the predicted rapid-softening and control fruits suggested that rapid softening is triggered by precocious ethylene signal-dependent cell wall modification, despite exhibiting no direct phenotypic changes. Further transcriptomic comparison between the featured and non-featured regions in the predicted rapid-softening fruit suggested that premonitory symptoms reflected hypoxia and the related stress signals finally to induce ethylene signals. These results would provide a good example for the collaboration of image analysis and omics approaches in plant physiology, which uncovered a novel aspect of fruit premonitory reactions in the rapid-softening fate.
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Affiliation(s)
- Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushimanaka, Kita Ward, Okayama, 700-8530 Japan
| | - Eriko Kuwada
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushimanaka, Kita Ward, Okayama, 700-8530 Japan
| | - Maria Suzuki
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushimanaka, Kita Ward, Okayama, 700-8530 Japan
| | - Tetsuya Suzuki
- Gifu Prefectural Agricultural Technology Center, 729-1 Matamaru Gifu, 501-1152 Japan
| | - Takeshi Niikawa
- Gifu Prefectural Agricultural Technology Center, 729-1 Matamaru Gifu, 501-1152 Japan
| | - Seiichi Uchida
- Faculty of Information Science and Electrical Engineering, Kyusyu University, 744 Motooka, Nishi Ward, Fukuoka, 819-0395 Japan
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushimanaka, Kita Ward, Okayama, 700-8530 Japan
- Japan Science and Technology Agency (JST), PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012 Japan
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2
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Horiuchi A, Masuda K, Shirasawa K, Onoue N, Matsuzaki R, Tao R, Kubo Y, Ushijima K, Akagi T. Genetic basis of lineage-specific evolution of fruit traits in hexaploid persimmon. DNA Res 2023; 30:dsad015. [PMID: 37326063 PMCID: PMC10468310 DOI: 10.1093/dnares/dsad015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/06/2023] [Accepted: 06/13/2023] [Indexed: 06/17/2023] Open
Abstract
Frequent polyploidization events in plants have led to the establishment of many lineage-specific traits representing each species. Little is known about the genetic bases for these specific traits in polyploids, presumably due to plant genomic complexity and their difficulties in applying genetic approaches. Hexaploid Oriental persimmon (Diospyros kaki) has evolved specific fruit characteristics, including wide variations in fruit shapes and astringency. In this study, using whole-genome diploidized/quantitative genotypes from ddRAD-Seq data of 173 persimmon cultivars, we examined their population structures and potential correlations between their structural transitions and variations in nine fruit traits. The population structures of persimmon cultivars were highly randomized and not substantially correlated with the representative fruit traits focused on in this study, except for fruit astringency. With genome-wide association analytic tools considering polyploid alleles, we identified the loci associated with the nine fruit traits; we mainly focused on fruit-shape variations, which have been numerically characterized by principal component analysis of elliptic Fourier descriptors. The genomic regions that putatively underwent selective sweep exhibited no overlap with the loci associated with these persimmon-specific fruit traits. These insights will contribute to understanding the genetic mechanisms by which fruit traits are independently established, possibly due to polyploidization events.
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Affiliation(s)
- Ayano Horiuchi
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | | | - Noriyuki Onoue
- Institute of Fruit Tree and Tea Science, NARO, Hiroshima 739-2494, Japan
| | - Ryusuke Matsuzaki
- Institute of Fruit Tree and Tea Science, NARO, Hiroshima 739-2494, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Yasutaka Kubo
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
- Japan Science and Technology Agency (JST), PRESTO, Saitama 332-0012, Japan
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3
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Tamura K, Yoshida T, Masuda K, Matsumoto Y, Shinno Y, Okuma Y, Goto Y, Horinouchi H, Yamamoto N, Ohe Y. Comparison of clinical outcomes of osimertinib and first-generation EGFR-tyrosine kinase inhibitors (TKIs) in TKI-untreated EGFR-mutated non-small-cell lung cancer with leptomeningeal metastases. ESMO Open 2023; 8:101594. [PMID: 37517364 PMCID: PMC10485398 DOI: 10.1016/j.esmoop.2023.101594] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 06/07/2023] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND Leptomeningeal metastases (LM) are devastating complications of epidermal growth factor receptor (EGFR)-mutated non-small-cell lung cancer (NSCLC). Although osimertinib, a third-generation EGFR-tyrosine kinase inhibitor (TKI), has better penetration into the central nervous system than first-generation EGFR-TKIs, data on the distinct activity of EGFR-TKIs in untreated advanced EGFR-mutated NSCLC with LM are lacking. PATIENTS AND METHODS We retrospectively reviewed patients treated with EGFR-TKIs for TKI-untreated common EGFR-mutated NSCLC with LM between July 2002 and July 2021 at the National Cancer Center Hospital. The patients were divided into two groups: patients treated with osimertinib (Osi group) and those treated with gefitinib or erlotinib [first-generation (1G)-TKI group]. RESULTS Of the 967 patients, 71 were eligible, including 29 in the Osi group and 42 in the 1G-TKI group. The median progression-free survival (PFS) and overall survival (OS) in the Osi group were better than those in the 1G-TKI group (PFS: 16.9 months versus 8.6 months, P = 0.007, and OS: 26.6 months versus 20.0 months, P = 0.158). The LM-overall response rate (ORR) and LM-PFS were significantly better in the Osi group than in the 1G-TKI group (LM-ORR: 62.5% versus 25.7%, P = 0.007; LM-PFS: 23.4 months versus 12.1 months, P = 0.021). In the subgroup analysis of EGFR mutation status, LM-PFS for patients with exon 19 deletion was significantly longer in the Osi group than in the 1G-TKI group (32.7 months versus 13.4 months, P = 0.013), whereas those with L858R mutation in exon 21 did not differ between the two groups. In the multivariate analysis, osimertinib and exon 19 deletion were significant factors for better LM-PFS and OS. CONCLUSION Osimertinib can be more effective for untreated common EGFR-mutated NSCLC patients with LM, especially those with exon 19 deletion, compared to first-generation TKIs.
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Affiliation(s)
- K Tamura
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo; Division of Respiratory Diseases, Department of Internal Medicine, The Jikei University School of Medicine, Minato-ku, Tokyo
| | - T Yoshida
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo; Department of Experimental Therapeutics, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan.
| | - K Masuda
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo
| | - Y Matsumoto
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo
| | - Y Shinno
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo
| | - Y Okuma
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo
| | - Y Goto
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo
| | - H Horinouchi
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo
| | - N Yamamoto
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo; Department of Experimental Therapeutics, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
| | - Y Ohe
- Department of Thoracic Oncology, National Cancer Center Hospital, Chuo-ku, Tokyo
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Horiuchi A, Masuda K, Shirasawa K, Onoue N, Fujita N, Ushijima K, Akagi T. Ongoing rapid evolution of a post-Y region revealed by chromosome-scale genome assembly of a hexaploid monoecious persimmon (Diospyros kaki). Mol Biol Evol 2023:msad151. [PMID: 37414545 PMCID: PMC10350624 DOI: 10.1093/molbev/msad151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 06/15/2023] [Accepted: 06/21/2023] [Indexed: 07/08/2023] Open
Abstract
Plants have evolved sex chromosomes independently in many lineages, and loss of separate sexes can also occur. In this study, we assembled a monoecious recently hexaploidized persimmon (Diospyros kaki), in which the Y chromosome has lost the maleness determining function. Comparative genomic analysis of D. kaki and its dioecious relatives uncovered the evolutionary process by which the non-functional Y chromosome (or Ymonoecy) was derived, which involved silencing of the sex-determining gene, OGI, approximately 2 million years ago. Analyses of the entire X and Ymonoecy chromosomes suggested that D. kaki's non-functional male-specific region of the Y-chromosome (MSY), which we call a post-MSY, has conserved some characteristics of the original functional MSY. Specifically, comparing the functional MSY in D. lotus and the non-functional "post-MSY" in D. kaki indicated that both have been rapidly rearranged, mainly via ongoing transposable element bursts, resembling structural changes often detected in Y-linked regions, some of which can enlarge the non-recombining regions. The recent evolution of the post-MSY (and possibly also MSYs in dioecious Diospyros species) therefore probably reflect these regions' ancestral location in a pericentromeric region, rather than the presence of male-determining genes and/or genes controlling sexually dimorphic traits.
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Affiliation(s)
- Ayano Horiuchi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Kenta Shirasawa
- Kazusa DNA Research Institute, Kazusa-Kamatari, Kisarazu, Chiba, 292-0818, Japan
| | - Noriyuki Onoue
- Institute of Fruit Tree and Tea Science, NARO, 301-2 Mitsu, Akitsu, Higashihiroshima, Hiroshima 739-2494, Japan
| | - Naoko Fujita
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
- Japan Science and Technology Agency (JST), PRESTO, Kawaguchi-shi, Saitama 332-0012, Japan
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5
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Abstract
Sexuality is the main strategy for maintaining genetic diversity within a species. In flowering plants (angiosperms), sexuality is derived from ancestral hermaphroditism and multiple sexualities can be expressed in an individual. The mechanisms conferring chromosomal sex determination in plants (or dioecy) have been studied for over a century by both biologists and agricultural scientists, given the importance of this field for crop cultivation and breeding. Despite extensive research, the sex determining gene(s) in plants had not been identified until recently. In this review, we dissect plant sex evolution and determining systems, with a focus on crop species. We introduced classic studies with theoretical, genetic, and cytogenic approaches, as well as more recent research using advanced molecular and genomic techniques. Plants have undergone very frequent transitions into, and out of, dioecy. Although only a few sex determinants have been identified in plants, an integrative viewpoint on their evolutionary trends suggests that recurrent neofunctionalization events are potentially common, in a "scrap and (re)build" cycle. We also discuss the potential association between crop domestication and transitions in sexual systems. We focus on the contribution of duplication events, which are particularly frequent in plant taxa, as a trigger for the creation of new sexual systems.
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Affiliation(s)
- Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
- JST, PRESTO, Kawaguchi, Saitama 332-0012, Japan
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6
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Akagi T, Varkonyi-Gasic E, Shirasawa K, Catanach A, Henry IM, Mertten D, Datson P, Masuda K, Fujita N, Kuwada E, Ushijima K, Beppu K, Allan AC, Charlesworth D, Kataoka I. Recurrent neo-sex chromosome evolution in kiwifruit. Nat Plants 2023; 9:393-402. [PMID: 36879018 DOI: 10.1038/s41477-023-01361-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 01/31/2023] [Indexed: 05/18/2023]
Abstract
Sex chromosome evolution is thought to be tightly associated with the acquisition and maintenance of sexual dimorphisms. Plant sex chromosomes have evolved independently in many lineages1,2 and can provide a powerful comparative framework to study this. We assembled and annotated genome sequences of three kiwifruit species (genus Actinidia) and uncovered recurrent sex chromosome turnovers in multiple lineages. Specifically, we observed structural evolution of the neo-Y chromosomes, which was driven via rapid bursts of transposable element insertions. Surprisingly, sexual dimorphisms were conserved in the different species studied, despite the fact that the partially sex-linked genes differ between them. Using gene editing in kiwifruit, we demonstrated that one of the two Y-chromosome-encoded sex-determining genes, Shy Girl, shows pleiotropic effects that can explain the conserved sexual dimorphisms. These plant sex chromosomes therefore maintain sexual dimorphisms through the conservation of a single gene, without a process involving interactions between separate sex-determining genes and genes for sexually dimorphic traits.
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Affiliation(s)
- Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.
- Japan Science and Technology Agency (JST), PRESTO, Kawaguchi-shi, Japan.
| | - Erika Varkonyi-Gasic
- The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Kenta Shirasawa
- Kazusa DNA Research Institute, Kazusa-Kamatari, Kisarazu, Japan
| | - Andrew Catanach
- The New Zealand Institute for Plant and Food Research Limited (PFR), Christchurch, New Zealand
| | - Isabelle M Henry
- Department of Plant Biology and Genome Center, University of California Davis, Davis, CA, USA
| | - Daniel Mertten
- The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
| | - Paul Datson
- The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
- The Kiwifruit Breeding Centre, Auckland, New Zealand
| | - Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Naoko Fujita
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Eriko Kuwada
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Kenji Beppu
- Faculty of Agriculture, Kagawa University, Miki, Kagawa, Japan
| | - Andrew C Allan
- The New Zealand Institute for Plant and Food Research Limited (PFR), Auckland, New Zealand
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | | | - Ikuo Kataoka
- Faculty of Agriculture, Kagawa University, Miki, Kagawa, Japan
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Kawasaki H, Masuda K, Isayama J, Aoto Y, Obata S, Fukushima-Nomura A, Ito Y, Tanase K, Kawakami E, Amagai M. 077 The thirteen bacterial species inversely correlated with disease activities of atopic dermatitis in human showed a biotherapeutic potential based on their suppressive effects in mice. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.087] [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: 11/19/2022]
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8
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Akagi T, Jung K, Masuda K, Shimizu KK. Polyploidy before and after domestication of crop species. Curr Opin Plant Biol 2022; 69:102255. [PMID: 35870416 DOI: 10.1016/j.pbi.2022.102255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 02/28/2022] [Revised: 05/01/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Recent advances in the genomics of polyploid species answer some of the long-standing questions about the role of polyploidy in crop species. Here, we summarize the current literature to reexamine scenarios in which polyploidy played a role both before and after domestication. The prevalence of polyploidy can help to explain environmental robustness in agroecosystems. This review also clarifies the molecular basis of some agriculturally advantageous traits of polyploid crops, including yield increments in polyploid cotton via subfunctionalization, modification of a separated sexuality to selfing in polyploid persimmon via neofunctionalization, and transition to a selfing system via nonfunctionalization combined with epistatic interaction between duplicated S-loci. The rapid progress in genomics and genetics is discussed along with how this will facilitate functional studies of understudied polyploid crop species.
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Affiliation(s)
- Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.
| | - Katharina Jung
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, 8057 Zürich, Switzerland
| | - Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Kentaro K Shimizu
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, 8057 Zürich, Switzerland; Kihara Institute for Biological Research, Yokohama City University, 641-12 Maioka, 244-0813 Totsuka-ward, Yokohama, Japan.
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9
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Shirasawa M, Yoshida T, Shiraishi K, Takigami A, Takayanagi D, Imabayashi T, Matsumoto Y, Masuda K, Shinno Y, Okuma Y, Goto Y, Horinouchi H, Tsuchida T, Hamamoto R, Yamamoto N, Motoi N, Watanabe SI, Ohe Y. 1548P Identification of inflamed-phenotype of small cell lung cancer leading to the efficacy of anti-PD-L1 antibody and chemotherapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1642] [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: 11/01/2022] Open
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10
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Uematsu M, Goto Y, Torasawa M, Matsumoto Y, Masuda K, Shinno Y, Okuma Y, Yoshida T, Horinouchi H, Yamamoto N, Ohe Y. EP07.03-004 Efficacy of Thoracic Radiotherapy for Local Progression in Advanced Thymic Carcinoma. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.569] [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: 11/30/2022]
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11
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Akagi T, Masuda K, Kuwada E, Takeshita K, Kawakatsu T, Ariizumi T, Kubo Y, Ushijima K, Uchida S. Genome-wide cis-decoding for expression design in tomato using cistrome data and explainable deep learning. Plant Cell 2022; 34:2174-2187. [PMID: 35258588 PMCID: PMC9134063 DOI: 10.1093/plcell/koac079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
In the evolutionary history of plants, variation in cis-regulatory elements (CREs) resulting in diversification of gene expression has played a central role in driving the evolution of lineage-specific traits. However, it is difficult to predict expression behaviors from CRE patterns to properly harness them, mainly because the biological processes are complex. In this study, we used cistrome datasets and explainable convolutional neural network (CNN) frameworks to predict genome-wide expression patterns in tomato (Solanum lycopersicum) fruit from the DNA sequences in gene regulatory regions. By fixing the effects of trans-acting factors using single cell-type spatiotemporal transcriptome data for the response variables, we developed a prediction model for crucial expression patterns in the initiation of tomato fruit ripening. Feature visualization of the CNNs identified nucleotide residues critical to the objective expression pattern in each gene, and their effects were validated experimentally in ripening tomato fruit. This cis-decoding framework will not only contribute to the understanding of the regulatory networks derived from CREs and transcription factor interactions, but also provides a flexible means of designing alleles for optimized expression.
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Affiliation(s)
| | | | | | | | - Taiji Kawakatsu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki 305-8602, Japan
| | - Tohru Ariizumi
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba Plant Innovation Research Center, Tsukuba, Japan
| | - Yasutaka Kubo
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Seiichi Uchida
- Department of Advanced Information Technology, Kyushu University, Fukuoka 819-0395, Japan
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12
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Masuda K, Ikeda Y, Matsuura T, Kawakatsu T, Tao R, Kubo Y, Ushijima K, Henry IM, Akagi T. Reinvention of hermaphroditism via activation of a RADIALIS-like gene in hexaploid persimmon. Nat Plants 2022; 8:217-224. [PMID: 35301445 DOI: 10.1038/s41477-022-01107-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 02/10/2022] [Indexed: 05/29/2023]
Abstract
In flowering plants, different lineages have independently transitioned from the ancestral hermaphroditic state into and out of various sexual systems1. Polyploidizations are often associated with this plasticity in sexual systems2,3. Persimmons (the genus Diospyros) have evolved dioecy via lineage-specific palaeoploidizations. More recently, hexaploid D. kaki has established monoecy and also exhibits reversions from male to hermaphrodite flowers in response to natural environmental signals (natural hermaphroditism, NH), or to artificial cytokinin treatment (artificial hermaphroditism, AH). We sought to identify the molecular pathways underlying these polyploid-specific reversions to hermaphroditism. Co-expression network analyses identified regulatory pathways specific to NH or AH transitions. Surprisingly, the two pathways appeared to be antagonistic, with abscisic acid and cytokinin signalling for NH and AH, respectively. Among the genes common to both pathways leading to hermaphroditic flowers, we identified a small-Myb RADIALIS-like gene, named DkRAD, which is specifically activated in hexaploid D. kaki. Consistently, ectopic overexpression of DkRAD in two model plants resulted in hypergrowth of the gynoecium. These results suggest that production of hermaphrodite flowers via polyploidization depends on DkRAD activation, which is not associated with a loss-of-function within the existing sex determination pathway, but rather represents a new path to (or reinvention of) hermaphroditism.
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Affiliation(s)
- Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yoko Ikeda
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Okayama, Japan
| | - Takakazu Matsuura
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Okayama, Japan
| | - Taiji Kawakatsu
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Yasutaka Kubo
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Isabelle M Henry
- Department of Plant Biology and Genome Center, University of California Davis, Davis, CA, USA
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan.
- JST-PRESTO, Saitama, Japan.
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13
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Ishii Y, Aiba N, Ando M, Asakura N, Bierwage A, Cara P, Dzitko H, Edao Y, Gex D, Hasegawa K, Hayashi T, Hiwatari R, Hoshino T, Ikeda Y, Ishida S, Isobe K, Iwai Y, Jokinen A, Kasugai A, Kawamura Y, Kim JH, Kondo K, Kwon S, Lorenzo SC, Masuda K, Matsuyama A, Miyato N, Morishita K, Nakajima M, Nakajima N, Nakamichi M, Nozawa T, Ochiai K, Ohta M, Oyaidzu M, Ozeki T, Sakamoto K, Sakamoto Y, Sato S, Seto H, Shiroto T, Someya Y, Sugimoto M, Tanigawa H, Tokunaga S, Utoh H, Wang W, Watanabe Y, Yagi M. R&D Activities for Fusion DEMO in the QST Rokkasho Fusion Institute. Fusion Science and Technology 2021. [DOI: 10.1080/15361055.2021.1925030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Y. Ishii
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Aiba
- National Institutes for Quantum and Radiological Science and Technology, Naka Fusion Institute, Naka City, Japan
| | - M. Ando
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Asakura
- National Institutes for Quantum and Radiological Science and Technology, Naka Fusion Institute, Naka City, Japan
| | - A. Bierwage
- National Institutes for Quantum and Radiological Science and Technology, Naka Fusion Institute, Naka City, Japan
| | - P. Cara
- IFMIF/EVEDA Project Team, Rokkasho-Vill., Japan
| | - H. Dzitko
- Fusion for Energy, Broader Approach, Garching, Germany
| | | | - D. Gex
- Fusion for Energy, Broader Approach, Garching, Germany
| | - K. Hasegawa
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Hayashi
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - R. Hiwatari
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Hoshino
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Ikeda
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Ishida
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Isobe
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Iwai
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - A. Jokinen
- IFMIF/EVEDA Project Team, Rokkasho-Vill., Japan
| | - A. Kasugai
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Kawamura
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - J. H. Kim
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Kondo
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Kwon
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. C. Lorenzo
- Fusion for Energy, Broader Approach, Barcelona, Spain
| | - K. Masuda
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - A. Matsuyama
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Miyato
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Morishita
- Kyoto University, Institute of Advanced Energy, Uji, Japan
| | - M. Nakajima
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Nakajima
- National Institute for Fusion Science, Department of Helical Plasma Research Rokkasho Research Center, Rokkasho-Vill., Japan
| | - M. Nakamichi
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Nozawa
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Ochiai
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Ohta
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Oyaidzu
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Ozeki
- NAT Corporation, Tohoku Branch Office, Rokkasho-Vill., Japan
| | - K. Sakamoto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Sakamoto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Sato
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - H. Seto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Shiroto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Someya
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Sugimoto
- NAT Corporation, Tohoku Branch Office, Rokkasho-Vill., Japan
| | - H. Tanigawa
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Tokunaga
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - H. Utoh
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - W. Wang
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Watanabe
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Yagi
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
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14
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Ido S, Masuda K, Yoshimura S, Tanaka H, Stugaard M. Loss of apical suction assessed by noninvasive pressure differences and twist in acute heart failure: a novel method using vector flow mapping. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Early diastolic intraventricular pressure difference (IVPD) reflects left ventricular (LV) apical suction, and IVPD is closely related to cardiac function, especially LV twist. Vector Flow Mapping (VFM) allows visualization of regional pressure distribution and noninvasive quantification of IVPD. The purpose of the present study was to investigate if and how IVPDs are related to LV twist in a model of acute heart failure (HF).
Methods
In 15 open-chest dogs, HF was induced by intracoronary injection of microspheres. The HF model was classified into two groups based on the LV end-diastolic pressure (LVEDP) (group1: LVEDP<18 mmHg (n=10), group2: LVEDP≥18 mmHg (n=8)).
Color Doppler images from apical long-axis views were acquired at baseline and during HF. From these images, pressure differences (ΔP) were calculated along the LV inflow tract throughout the cardiac cycle. For the purpose of this study, the differences between apex and base during isovolumic relaxation time (ΔPIRT) and rapid early inflow period (ΔPE) were used for analyses. Furthermore, apical and basal short axis high frame rate 2D images were acquired, and peak rotation and peak twist were analyzed.
Results
LVEDP was 7±9, 14±2, 21±3 mmHg for baseline, group1 HF, and group2 HF, respectively. Pressure differences (both ΔPIRT and ΔPE) were visibly changed by the increase of LVEDP (Figure), and the magnitude of ΔPIRT, ΔPE and peak twist decreased significantly with the severity of heart failure. There were significant relationships between pressure differences (ΔPIRT and ΔPE) and dP/dtmin, tau, EF and peak twist (Table). In multivariate analyses, tau and peak twist were independent predictors for ΔPIRT and peak twist was independent predictor for ΔPE.
Conclusion
VFM analysis is feasible to noninvasively assess the IVPDs in acute heart failure. The IVPDs are closely related to the twisting motion of the LV, and reflect loss of apical suction during severe HF.
Funding Acknowledgement
Type of funding sources: None. VFM images of pressure differencesCorrelations of pressure differences
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Affiliation(s)
- S Ido
- Osaka University Graduate School of Medicine, Division of Health Sciences, Suita, Japan
| | - K Masuda
- Sumitomo life multiphasic health test system, Osaka, Japan
| | - S Yoshimura
- Osaka University Graduate School of Medicine, Division of Health Sciences, Suita, Japan
| | - H Tanaka
- Osaka University Graduate School of Medicine, Division of Health Sciences, Suita, Japan
| | - M Stugaard
- Osaka University Graduate School of Medicine, Division of Health Sciences, Suita, Japan
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15
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Kenmotsu H, Wakuda K, Mori K, Kato T, Sugawara S, Kirita K, Okamoto I, Azuma K, Nishino K, Teraoka S, Koyama R, Masuda K, Hayashi H, Toyozawa R, Miura S, Sato Y, Nakagawa K, Yamamoto N, Takahashi T. LBA44 Primary results of a randomized phase II study of osimertinib plus bevacizumab versus osimertinib monotherapy for untreated patients with non-squamous non-small cell lung cancer harboring EGFR mutations: WJOG9717L study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2123] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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16
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Kato K, Akeda K, Miyazaki S, Yamada J, Muehleman C, Miyamoto K, Asanuma YA, Asanuma K, Fujiwara T, Lenz ME, Nakazawa T, An H, Masuda K. NF-kB decoy oligodeoxynucleotide preserves disc height in a rabbit anular-puncture model and reduces pain induction in a rat xenograft-radiculopathy model. Eur Cell Mater 2021; 42:90-109. [PMID: 34284523 DOI: 10.22203/ecm.v042a07] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
While it is known that the degenerated intervertebral disc (IVD) is one of the primary reasons for low-back pain and subsequent need for medical care, there are currently no established effective methods for direct treatment. Nuclear factor-κB (NF-κB) is a transcription factor that regulates various genes' expression, among which are inflammatory cytokines, in many tissues including the IVD. NF-κB decoy is an oligodeoxynucleotide containing the NF-κB binding site that entraps NF-κB subunits, resulting in suppression of NF-κB activity. In the present preclinical study, NF-κB decoy was injected into degenerated IVDs using the rabbit anular-puncture model. In terms of distribution, NF-κB decoy persisted in the IVDs up to at least 4 weeks after injection. The remaining amount of NF-κB decoy indicated that it fit a double-exponential-decay equation. Investigation of puncture-caused degeneration of IVDs showed that NF-κB decoy injection recovered, dose-dependently, the reduced disc height that was associated with reparative cell cloning and morphological changes, as assessed through histology. Gene expression, by quantitative real-time polymerase chain reaction (qRT-PCR), showed that NF-κB decoy attenuated inflammatory gene expression, such as that of interleukin-1 and tumor necrosis factor-α, in rabbit degenerated IVDs. NF-κB decoy also reduced the pain response as seen using the "pain sensor" nude rat xenograft-radiculopathy model. This is the first report demonstrating that NF-κB decoy suppresses the inflammatory response in degenerated IVDs and restores IVD disc height loss. Therefore, the intradiscal injection of NF-κB decoy may have the potential as an effective therapeutic strategy for discogenic pain associated with degenerated IVDs.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - K Masuda
- Department of Orthopedic Surgery, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093,
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17
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Kozuka Y, Isogami S, Masuda K, Miura Y, Das S, Fujioka J, Ohkubo T, Kasai S. Observation of Nonlinear Spin-Charge Conversion in the Thin Film of Nominally Centrosymmetric Dirac Semimetal SrIrO_{3} at Room Temperature. Phys Rev Lett 2021; 126:236801. [PMID: 34170165 DOI: 10.1103/physrevlett.126.236801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 12/02/2020] [Accepted: 05/07/2021] [Indexed: 06/13/2023]
Abstract
Spin-charge conversion via spin-orbit interaction is one of the core concepts in the current spintronics research. The efficiency of the interconversion between charge and spin current is estimated based on Berry curvature of Bloch wave function in the linear-response regime. Beyond the linear regime, nonlinear spin-charge conversion in the higher-order electric field terms has recently been demonstrated in noncentrosymmetric materials with nontrivial spin texture in the momentum space. Here, we report the observation of the nonlinear charge-spin conversion in a nominally centrosymmetric oxide material SrIrO_{3} by breaking inversion symmetry at the interface. A large second-order magnetoelectric coefficient is observed at room temperature because of the antisymmetric spin-orbit interaction at the interface of Dirac semimetallic bands, which is subject to the symmetry constraint of the substrates. Our study suggests that nonlinear spin-charge conversion can be induced in many materials with strong spin-orbit interaction at the interface by breaking the local inversion symmetry to give rise to spin splitting in otherwise spin degenerate systems.
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Affiliation(s)
- Y Kozuka
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - S Isogami
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - K Masuda
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - Y Miura
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - Saikat Das
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - J Fujioka
- Faculty of Material Science, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - T Ohkubo
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - S Kasai
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047, Japan
- Japan Science and Technology Agency, PRESTO, Kawaguchi, Saitama 332-0012, Japan
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18
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Masuda K, Yamamoto E, Shirasawa K, Onoue N, Kono A, Ushijima K, Kubo Y, Tao R, Henry IM, Akagi T. Genome-wide study on the polysomic genetic factors conferring plasticity of flower sexuality in hexaploid persimmon. DNA Res 2021; 27:5858979. [PMID: 32761076 PMCID: PMC7406971 DOI: 10.1093/dnares/dsaa012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/10/2020] [Indexed: 11/17/2022] Open
Abstract
Sexuality is one of the fundamental mechanisms that work towards maintaining genetic diversity within a species. In diploid persimmons (Diospyros spp.), separated sexuality, the presence of separate male and female individuals (dioecy), is controlled by the Y chromosome-encoded small-RNA gene, OGI. On the other hand, sexuality in hexaploid Oriental persimmon (Diospyros kaki) is more plastic, with OGI-bearing genetically male individuals, able to produce both male and female flowers (monoecy). This is thought to be linked to the partial inactivation of OGI by a retrotransposon insertion, resulting in DNA methylation of the OGI promoter region. To identify the genetic factors regulating branch sexual conversion, genome-wide correlation/association analyses were conducted using ddRAD-Seq data from an F1 segregating population, and using both quantitative and diploidized genotypes, respectively. We found that allelic ratio at the Y-chromosomal region, including OGI, was correlated with male conversion based on quantitative genotypes, suggesting that OGI can be activated in cis in a dosage-dependent manner. Genome-wide association analysis based on diploidized genotypes, normalized for the effect of OGI allele dosage, detected three fundamental loci associated with male conversion. These loci underlie candidate genes, which could potentially act epigenetically for the activation of OGI expression.
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Affiliation(s)
- Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Eiji Yamamoto
- Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Kenta Shirasawa
- Kazusa DNA Research Institute, Kisarazu, Chiba 292-0818, Japan
| | - Noriyuki Onoue
- Institute of Fruit Tree and Tea Science, NARO, Hiroshima 739-2494, Japan
| | - Atsushi Kono
- Institute of Fruit Tree and Tea Science, NARO, Hiroshima 739-2494, Japan
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Yasutaka Kubo
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Isabelle M Henry
- Department of Plant Biology and Genome Center, University of California, Davis, CA 95616, USA
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
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19
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Yamanaka M, Iwata H, Masuda K, Araki M, Okuno Y, Okamura M, Koiwa J, Tanaka T. A novel orexin antagonist from a natural plant was discovered using zebrafish behavioural analysis. Eur Rev Med Pharmacol Sci 2021; 24:5127-5139. [PMID: 32432777 DOI: 10.26355/eurrev_202005_21207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Phenotypic screening is one of the most practical approaches to the identification of mediators of behaviour, since it is difficult to model brain function in vitro, at a cellular level. We used a zebrafish (Danio rerio) behavioural assay to discover novel, natural, neuroactive compounds. MATERIALS AND METHODS A zebrafish behavioural assay was performed for seven natural compounds, obtained from plants. The behavioural profiles were compared to those of known psychoactive drugs. We characterised a natural compound exhibiting a behaviour profile similar to that of suvorexant, using in silico, in vitro and microarray expression analysis. RESULTS The behavioural analysis performed in this study classified central nervous system drugs according to their mechanism. Zebrafish treated with a natural compound, 8b-(4'-Hydroxytigloyloxy) costunolide (8b), showed behaviour profiles similar to those of zebrafish treated with suvorexant, a known orexin antagonist. This behavioural assay was validated using in silico and in vitro assays, which revealed that the new compound was a dual orexin receptor antagonist. In addition, transcriptome analysis suggested that 8b might regulate the nuclear factor-κB (NF-κB) related pathway. CONCLUSIONS We conclude that zebrafish phenotypic screening, combined with in silico assays and gene expression profiling, is a useful strategy to discover and characterize novel therapeutic compounds, including natural products.
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Affiliation(s)
- M Yamanaka
- Department of Systems Pharmacology, Mie University, Graduate School of Medicine, Tsu, Mie, Japan.
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20
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Lee J, Tan A, Zhou S, Liu S, Kim D, Masuda K, Batra U, Hayashi H, Goto Y, Tan S, Wu Y, Tan D, Ahn M. MA04.06 Clinical Characteristics and Outcomes in Advanced KRAS Mutant NSCLC – A Multi-Centre Collaboration in Asia (ATORG-005). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Sakai Y, Hamano H, Ochi H, Abe F, Masuda K, Iino H. Lactulose ingestion causes an increase in the abundance of gut-resident bifidobacteria in Japanese women: a randomised, double-blind, placebo-controlled crossover trial. Benef Microbes 2021; 12:43-53. [PMID: 33393445 DOI: 10.3920/bm2020.0100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The genus Bifidobacterium comprises various bacterial species, and the complement of species within the human intestinal tract differs from individual to individual. The balance of these bifidobacterial species remains poorly understood, although it is known that the abundance of bifidobacteria increases following the ingestion of prebiotics. We previously conducted a randomised, placebo-controlled, double-blind, crossover study of 2 g/day lactulose ingestion for 2 weeks in 60 Japanese women. To study the effect of lactulose ingestion on each bifidobacterial species, here, we measured the abundance of each of the principal bifidobacterial species. After lactulose ingestion, the log cell counts of the Bifidobacterium adolescentis group (8.97±0.08 vs 9.39±0.08, P=0.0019), Bifidobacterium catenulatum group (9.45±0.10 vs 9.65±0.10, P=0.0032) and Bifidobacterium longum group (9.01±0.07 vs 9.29±0.07, P=0.0012) were significantly higher than in the placebo ingestion control group. However, the log cell counts were similar for Bifidobacterium breve (8.12±0.12 vs 8.33±0.12, P=0.20), Bifidobacterium bifidum (9.08±0.12 vs 9.42±0.14, P=0.095) and Bifidobacterium animalis subspecies lactis (8.65±0.53 vs 8.46±0.46, P=0.77). Cluster analysis of the log cell count data at the bifidobacterial species level revealed three distinct clusters, but the combinations and ratios of the constituent bifidobacteria were not affected by lactulose ingestion. Furthermore, principal coordinate analysis of the intestinal microbiota in the lactulose and placebo ingestion groups using Illumina MiSeq showed no significant differences in the intestinal microbiota as a whole. These results suggest that 2 g/day lactulose ingestion for 2 weeks significantly increases the abundance of intestinal bifidobacteria, but does not affect the intestinal microbiota as a whole.
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Affiliation(s)
- Y Sakai
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - H Hamano
- R&D Management Department, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - H Ochi
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - F Abe
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - K Masuda
- Department of Food Science and Nutrition, Faculty of Life and Environmental Sciences, Showa Women's University, 1-7 Taishidou, Setagaya-ku, Tokyo 154-8533, Japan
| | - H Iino
- Life Sciences for Living Systems, Graduate School, Showa Women's University, 1-7 Taishidou, Setagaya-ku, Tokyo 154-8533, Japan
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22
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Akagi T, Onishi M, Masuda K, Kuroki R, Baba K, Takeshita K, Suzuki T, Niikawa T, Uchida S, Ise T. Explainable Deep Learning Reproduces a 'Professional Eye' on the Diagnosis of Internal Disorders in Persimmon Fruit. Plant Cell Physiol 2020; 61:1967-1973. [PMID: 32845307 DOI: 10.1093/pcp/pcaa111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 02/17/2020] [Accepted: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Recent rapid progress in deep neural network techniques has allowed recognition and classification of various objects, often exceeding the performance of the human eye. In plant biology and crop sciences, some deep neural network frameworks have been applied mainly for effective and rapid phenotyping. In this study, beyond simple optimizations of phenotyping, we propose an application of deep neural networks to make an image-based internal disorder diagnosis that is hard even for experts, and to visualize the reasons behind each diagnosis to provide biological interpretations. Here, we exemplified classification of calyx-end cracking in persimmon fruit by using five convolutional neural network models with various layer structures and examined potential analytical options involved in the diagnostic qualities. With 3,173 visible RGB images from the fruit apex side, the neural networks successfully made the binary classification of each degree of disorder, with up to 90% accuracy. Furthermore, feature visualizations, such as Grad-CAM and LRP, visualize the regions of the image that contribute to the diagnosis. They suggest that specific patterns of color unevenness, such as in the fruit peripheral area, can be indexes of calyx-end cracking. These results not only provided novel insights into indexes of fruit internal disorders but also proposed the potential applicability of deep neural networks in plant biology.
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Affiliation(s)
- Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530 Japan
| | - Masanori Onishi
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502 Japan
| | - Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530 Japan
| | | | - Kohei Baba
- Kyusyu University, Fukuoka, 819-0395 Japan
| | | | - Tetsuya Suzuki
- Gifu Prefectural Agricultural Technology Center, Gifu, Japan
| | - Takeshi Niikawa
- Gifu Prefectural Agricultural Technology Center, Gifu, Japan
| | | | - Takeshi Ise
- Field Science Education and Research Center, Kyoto University, Kyoto, 606-8502 Japan
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23
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Masuda K, Fujita N, Yang HW, Ushijima K, Kubo Y, Tao R, Akagi T. Molecular Mechanism Underlying Derepressed Male Production in Hexaploid Persimmon. Front Plant Sci 2020; 11:567249. [PMID: 33414795 PMCID: PMC7783364 DOI: 10.3389/fpls.2020.567249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
Sex expression in plants is often flexible and contributes to the maintenance of genetic diversity within a species. In diploid persimmons (the genus Diospyros), the sexuality is controlled by the Y chromosome-encoded small-RNA gene, OGI, and its autosomal counterpart, MeGI. Hexaploid Oriental persimmon (Diospyros kaki) evolved more flexible sex expression, where genetically male individuals carrying OGI can produce both male and female flowers (monoecy). This is due to (semi-)inactivation of OGI by the Kali-SINE retrotransposon insertion on the promoter region and the resultant DNA methylations. Instead, flower sex determination in Oriental persimmon is also dependent on DNA methylation states of MeGI. Here, we focused on a cultivar, Kumemaru, which shows stable male flower production. Our results demonstrated that cv. Kumemaru carries OGI with Kali-SINE, which was highly methylated as well as in other monoecious cultivars; nevertheless, OGI gene could have a basal expression level. Transcriptomic analysis between cv. Kumemaru and 14 cultivars that predominantly produce female flowers showed differentially expressed genes (DEGs) specific to cv. Kumemaru, which is mainly involved in stress responses. Co-expression gene networks focusing on the DEGs also suggested the involvement of stress signals, mainly via gibberellin (GA), salicylic acid (SA), and especially jasmonic acid (JA) signal pathways. We also identified potential regulators of this co-expression module, represented by the TCP4 transcription factor. Furthermore, we attempted to identify cv. Kumemaru-specific transcript polymorphisms potentially contributing to derepressed OGI expression by cataloging subsequences (k-mers) in the transcriptomic reads from cv. Kumemaru and the other 14 female cultivars. Overall, although the direct genetic factor to activate OGI remains to be solved, our results implied the involvement of stress signals in the release of silenced OGI and the resultant continuous male production.
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Affiliation(s)
- Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Naoko Fujita
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Ho-Wen Yang
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yasutaka Kubo
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Japan
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
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Furuse J, Goyal L, Meric-Bernstam F, Hollebecque A, Valle J, Morizane C, Karasic T, Abrams T, Kelley R, Cassier P, Klumpen HJ, Uboha N, Mahipal A, Mitchell E, Ahn E, Chang HM, Masuda K, He Y, Benhadji K, Bridgewater J. 116MO Efficacy, safety, and quality of life (QoL) with futibatinib in patients (pts) with intrahepatic cholangiocarcinoma (iCCA) harboring FGFR2 fusions/rearrangements: FOENIX-CCA2. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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25
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Takumida H, Horinouchi H, Masuda K, Shinno Y, Okuma Y, Yoshida T, Goto Y, Yamamoto N, Ohe Y. 1327P Benchmarking the efficacy and safety of pembrolizumab plus chemotherapy to pembrolizumab monotherapy: A consecutive analysis of NSCLC patients with high PD-L1 expression. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1641] [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: 12/01/2022] Open
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26
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Mitalo OW, Otsuki T, Okada R, Obitsu S, Masuda K, Hojo Y, Matsuura T, Mori IC, Abe D, Asiche WO, Akagi T, Kubo Y, Ushijima K. Low temperature modulates natural peel degreening in lemon fruit independently of endogenous ethylene. J Exp Bot 2020; 71:4778-4796. [PMID: 32374848 PMCID: PMC7410192 DOI: 10.1093/jxb/eraa206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 11/25/2019] [Accepted: 05/01/2020] [Indexed: 05/02/2023]
Abstract
Peel degreening is an important aspect of fruit ripening in many citrus fruit, and previous studies have shown that it can be advanced by ethylene treatment or by low-temperature storage. However, the important regulators and pathways involved in natural peel degreening remain largely unknown. To determine how natural peel degreening is regulated in lemon fruit (Citrus limon), we studied transcriptome and physiochemical changes in the flavedo in response to ethylene treatment and low temperatures. Treatment with ethylene induced rapid peel degreening, which was strongly inhibited by the ethylene antagonist, 1-methylcyclopropene (1-MCP). Compared with 25 ºC, moderately low storage temperatures of 5-20 °C also triggered peel degreening. Surprisingly, repeated 1-MCP treatments failed to inhibit the peel degreening induced by low temperature. Transcriptome analysis revealed that low temperature and ethylene independently regulated genes associated with chlorophyll degradation, carotenoid metabolism, photosystem proteins, phytohormone biosynthesis and signalling, and transcription factors. Peel degreening of fruit on trees occurred in association with drops in ambient temperature, and it coincided with the differential expression of low temperature-regulated genes. In contrast, genes that were uniquely regulated by ethylene showed no significant expression changes during on-tree peel degreening. Based on these findings, we hypothesize that low temperature plays a prominent role in regulating natural peel degreening independently of ethylene in citrus fruit.
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Affiliation(s)
- Oscar W Mitalo
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Takumi Otsuki
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Rui Okada
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Saeka Obitsu
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yuko Hojo
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Takakazu Matsuura
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Izumi C Mori
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Daigo Abe
- National Agriculture and Food Research Organization, Shikoku Research Station, Zentsuji, Japan
| | - William O Asiche
- Department of Research and Development, Del Monte Kenya Ltd, Thika, Kenya
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | - Yasutaka Kubo
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
- Correspondence: or
| | - Koichiro Ushijima
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
- Correspondence: or
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27
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Kaneko M, Tsuji K, Masuda K, Ueno K, Henmi K, Nakagawa S, Fujita R, Suzuki K, Inoue Y, Shindo H, Konishi E, Takamatsu T, Ukimura O. Automated urine cell image analysis with a convolutional neural network. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33493-5] [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] Open
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28
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Arakawa Y, Tamagawa‐Mineoka R, Masuda K, Katoh N. Serum thymus and activation‐regulated chemokine levels before and after treatment for pruritic scabies. J Eur Acad Dermatol Venereol 2020; 34:e817-e818. [DOI: 10.1111/jdv.16698] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Y. Arakawa
- Department of Dermatology Kyoto Prefectural University of Medicine Graduate School of Medical Science Kyoto Japan
| | - R. Tamagawa‐Mineoka
- Department of Dermatology Kyoto Prefectural University of Medicine Graduate School of Medical Science Kyoto Japan
| | - K. Masuda
- Department of Dermatology Kyoto Prefectural University of Medicine Graduate School of Medical Science Kyoto Japan
| | - N. Katoh
- Department of Dermatology Kyoto Prefectural University of Medicine Graduate School of Medical Science Kyoto Japan
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Masuda K, Akagi T, Esumi T, Tao R. Epigenetic Flexibility Underlies Somaclonal Sex Conversions in Hexaploid Persimmon. Plant Cell Physiol 2020; 61:393-402. [PMID: 31693144 DOI: 10.1093/pcp/pcz207] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 02/11/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Epigenetic regulation adds a flexible layer to genetic variations, potentially enabling long-term, but reversible, changes to a trait, while maintaining genetic information. In the hexaploid Oriental persimmon (Diospyros kaki), genetically monoecious cultivars bearing male flowers require the Y-encoded small RNA (smRNA) gene, OGI. This gene represses the expression of its autosomal counterpart gene, MeGI, as part of the canonical male production system. However, a D. kaki cultivar, Saijo, which lacks the OGI gene and originally bears only female flowers, occasionally produces somaclonal mutant male and revertant female (RF) branches. In this study, we investigated the mechanisms underlying these somaclonal sex conversions in persimmon. Specifically, we aimed to unravel how a genetically female tree without the OGI gene can produce male flowers and RF flowers. Applying multi-omics approaches, we revealed that this noncanonical male production system is basically consistent with the canonical system, in which the accumulation of smRNA targeting MeGI and the considerable DNA methylation of MeGI are involved. The epigenetic status of MeGI on CGN and CHG was synchronized to the genome-wide methylation patterns, both in transition to and from the male production system. These results suggest that the somaclonal sex conversions in persimmon are driven by the genome-wide epigenetic regulatory activities. Moreover, flexibility in the epigenetic layers of long-lived plant species (e.g. trees) is important for overcoming genetic robustness.
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Affiliation(s)
- Kanae Masuda
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530 Japan
| | - Takashi Akagi
- Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530 Japan
- Japan Science and Technology Agency, PRESTO, Kawaguchi-shi, Saitama, 332-0012 Japan
| | - Tomoya Esumi
- Academic Assembly Institute of Agricultural and Life Sciences, Shimane University, Matsue, 690-8504, Japan
| | - Ryutaro Tao
- Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502 Japan
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Miura T, Aoki T, Ohtsuka H, Aoki S, Hata T, Iseki M, Takadate T, Ariake K, Kawaguchi K, Masuda K, Ishida M, Mizuma M, Hayashi H, Nakagawa K, Morikawa T, Motoi F, Sasano H, Naitoh T, Kamei T, Unno M. Preoperative neutrophil‐to‐lymphocyte ratio (NLR) predicts recurrence after surgery in patient with pancreatic neuroendocrine neoplasm (PanNEN). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.049] [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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Masuda K, Minami S, Stugaard M, Kozuma A, Takeda S, Nakayama T, Asanuma T, Nakatani S. P2477Assessment of intraventricular flow dynamics in acute heart failure studied by Vector Flow Mapping. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Although left ventricular (LV) flow dynamics should be closely related to LV morphology and function, little is known about how heart failure (HF) changes it. Pathline Analysis (PA), a recently developed software based on Vector Flow Mapping (VFM, Hitachi), enables us to trace the virtual blood particles entering to the LV in diastole and being ejected in systole. We investigated the change of flow dynamics in HF induced in dogs using PA.
Methods
In 15 open-chest dogs, HF was induced by intracoronary injection of microspheres. Color Doppler images of apical long-axis view were acquired using Prosound F75 (Hitachi) before and after HF and were analyzed by PA. We calculated the ratio of the numbers of entering particles in diastole and ejected particles in systole (ejection rate) and the distance reached by the particles in diastole corrected by the LV long-axis diameter (propagation distance). Apical and basal short axis images were acquired using GE Vivid E9 and were analyzed for peak rotation and peak twist.
Results
After inducing HF, LV end-diastolic pressure increased from 6±2 to 15±5 mmHg (p<0.001) and ejection fraction (EF), apical peak rotation and peak twist decreased significantly (EF; 58±5 to 36±8%, apical peak rotation; 14±5 to 3±2 degree, peak twist; 19±5 to 6±3 degree, p<0.05, respectively). PA showed most of the entering particles to the LV were ejected in the following systole at the control stage, but in HF, a significant part of the entering particles were not ejected and remained in the LV (Figure). Ejection rate decreased from 50±11 to 26±11% (p<0.001) and the propagation distance decreased from 85±9 to 66±13% (p<0.001) after inducing HF. There were significant relationships between indices obtained by PA and EF and peak twist (Table).
Conclusion
A significant part of inflow is not ejected directly to the outflow in the next systole and remains in the LV in HF, suggesting inefficient flow dynamics.
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Affiliation(s)
- K Masuda
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - S Minami
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - M Stugaard
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - A Kozuma
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - S Takeda
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - T Nakayama
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - T Asanuma
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - S Nakatani
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
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Tanekda S, Asanuma T, Masuda K, Kozuma A, Minami S, Nakayama T, Nakatani S. P1470Myocardial dysfunction index: a novel myocardial strain parameter for diagnosing myocardial ischemia. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and purpose
Peak systolic strain (ε-sys) derived from speckle tracking echocardiography (STE) is a useful parameter for assessing regional contractile dysfunction during acute ischemia. However, low ε-sys does not always indicate myocardial ischemia because of its relatively large variation in segmental normal ranges and intervendor differences. Therefore, comparison of strain before and after an ischemic event and demonstration of a decrease in ε-sys should be necessary to confirm myocardial ischemia, which is not always possible in clinical situations. It is well known that early systolic lengthening (ESL) and post-systolic shortening (PSS) occur during acute ischemia. We hypothesized that ESL and PSS would correlate with the decrease in ε-sys and integrated analysis of ESL and PSS could be useful to diagnose the presence of myocardial ischemia.
Methods
2D short-axis or 3D full-volume images were acquired by Artida at baseline, during flow-limiting stenosis (mean 50±20% flow reduction), and during complete occlusion of the left circumflex coronary artery in 22 dogs (2D-STE = 12, 3D-STE = 10).Circumferential strain was analyzed in the center of risk area, and the absolute value of peak systolic strain (ε-sys), post-systolic strain index (PSI) as a parameter of PSS, and early systolic strain index (ESI) as a parameter of ESL were measured. A new parameter, myocardial dysfunction index (MDI), which was calculated as follows: (ESL amplitude + PSS amplitude)/maximal strain amplitude during the cardiac cycle, was also calculated. The difference in ε-sys between at baseline and during ischemia (Δε-sys) was measured and the diagnostic accuracy for estimating Δε-sys < −3% was assessed by the receiver operating characteristics (ROC) curve analysis.
Results
During ischemia, ε-sys decreased from 19±3 to 12±6% and MDI increased from 2±4 to 27±30%. MDI was significantly correlated with Δε-sys (2D-STE: r=−0.80, 3D-STE: r=−0.83, p<0.01, respectively) (Figure). The area under the curve (AUC) of MDI for estimating Δε-sys < −3% tended to be larger than those of ESI and PSI (MDI: 0.9, ESI: 0.73, PSI: 0.85).
Figure 1
Conclusions
The novel parameter, MDI was correlated with the decrease in ε-sys during acute ischemia. Integrated analysis of ESL and PSS may be useful for diagnosing the presence of myocardial ischemia.
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Affiliation(s)
- S Tanekda
- Osaka University Graduate School of Medicine, Suita, Japan
| | - T Asanuma
- Osaka University Graduate School of Medicine, Suita, Japan
| | - K Masuda
- Osaka University Graduate School of Medicine, Suita, Japan
| | - A Kozuma
- Osaka University Graduate School of Medicine, Suita, Japan
| | - S Minami
- Osaka University Graduate School of Medicine, Suita, Japan
| | - T Nakayama
- Osaka University Graduate School of Medicine, Suita, Japan
| | - S Nakatani
- Osaka University Graduate School of Medicine, Suita, Japan
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Masuda K, Horinouchi H, Tanaka M, Higashiyama R, Shinno Y, Sato J, Yoshida T, Matsumoto Y, Goto Y, Kanda S, Yamamoto N, Ohe Y. MA11.07 Efficacy of Immune-Checkpoint Inhibitors and EGFR-TKIs in NSCLC Patients with High PD-L1 Expression. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sakai Y, Seki N, Hamano K, Ochi H, Abe F, Masuda K, Iino H. Prebiotic effect of two grams of lactulose in healthy Japanese women: a randomised, double-blind, placebo-controlled crossover trial. Benef Microbes 2019; 10:629-639. [DOI: 10.3920/bm2018.0174] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Sixty healthy Japanese women with a defaecation frequency of 2-4 times/week participated in this randomised, double-blind crossover trial. Participants received 2 g/day lactulose for 2 weeks and placebo in a random order, separated by a washout period of 3 weeks. Eight participants were excluded who did not satisfy the conditions, and therefore data from 52 were analysed. The primary outcome was defaecation frequency and the secondary outcomes were the number of defaecation days, faecal consistency, faecal volume, and the number and percentage of Bifidobacterium in faeces. The defaecation frequency (times/week) was significantly higher during lactulose (4.28±0.23) than placebo (3.83±0.23) treatment (delta (Δ) 0.45 [95% confidence interval (CI) 0.10-0.80], P=0.013). The defaecation days (days/week) was significantly higher during lactulose (3.77±0.17) than placebo (3.47±0.17) treatment (Δ0.30 [95% CI 0.04-0.56], P=0.024). Faecal consistency using the Bristol Stool Scale (/defaecation) was significantly higher during lactulose (3.84±0.10) than placebo (3.68±0.10) treatment (Δ0.16 [95% CI 0.00-0.31], P=0.044). Faecal volume (/week) was significantly higher during lactulose (21.73±3.07) than placebo (17.65±3.07) treatment (Δ4.08 [95% CI 0.57-7.60], P=0.024). The number of Bifidobacterium in faeces (log colony forming units/g faeces) was significantly higher during lactulose (9.53±0.06) than placebo (9.16±0.06) treatment (Δ0.37 [95% CI 0.23-0.49], P<0.0001). The percentage of Bifidobacterium in faeces was also significantly higher during lactulose (25.3±1.4) than placebo (18.2±1.4) treatment (Δ7.1 [95% CI 2.9-11.4], P=0.0014). Finally, straining at defaecation (/defaecation) during lactulose (3.62±0.24) treatment was significantly lower than during placebo (3.97±0.24) treatment (Δ0.35 [95% CI -0.69 – -0.02], P=0.037). No significant difference was observed between lactulose and placebo with regard to flatulence. Severe adverse effects did not occur. Thus, oral ingestion of 2 g/day lactulose had a prebiotic effect, increasing the number and percentage of bifidobacteria in faeces, softening the faeces, and increasing defaecation frequency, but without increasing flatulence.
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Affiliation(s)
- Y. Sakai
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - N. Seki
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - K. Hamano
- R&D Management Department, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - H. Ochi
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - F. Abe
- Food Ingredients & Technology Institute, R&D Division, Morinaga Milk Industry Co., Ltd., 5-1-83 Higashihara, Zama, Kanagawa 252-8583, Japan
| | - K. Masuda
- Department of Food Science and Nutrition, Faculty of Life and Environmental Sciences, Showa Women’s University, 1-7 Taishidou, Setagaya-ku, Tokyo 154-8533, Japan
| | - H. Iino
- Life Sciences for Living Systems, Graduate School, Showa Women’s University, 1-7 Taishidou, Setagaya-ku, Tokyo 154-8533, Japan
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Itow Y, Masuda K, Menjo H, Muraki Y, Ohashi K, Sato K, Ueno M, Zhou Q, Sako T, Kasahara K, Suzuki T, Torii S, Tamura T, Sakurai N, Haguenauer M, Turner W, Adriani O, Berti E, Bonechi L, Bongi M, D'Alessandro R, Papini P, Ricciarini S, Tiberio A, Tricomi A, Goto Y, Nakagawa I, Seidl R, Park J, Kim M, Tanida K, Hong B. Recent results from the LHCf and RHICf experiments. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201920805004] [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: 11/15/2022] Open
Abstract
The Large Hadron Collider forward and the Relativistic Heavy Ion Collider forward experiments measured forward particles produced in high-energy hadron collisions at the LHC and RHIC. Using compact calorimeters neutral particles produced in pseudorapidities η >8.4 and η >6.0 are observed by the respective experiments. Because the collision energies ranging from 0.51 TeV to 13 TeV correspond to the cosmic-ray equivalent energies of 1014 to 1017 eV, the measurements are important to understand the hadronic interaction relevant to extensive air shower measurements. This paper reviews recent results of LHCf and initial performance of RHICf that took data in the 2017 RHIC operation.
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Matsuyama T, Ushigome H, Osaka M, Masuda K, Harada S, Nakamura T, Nobori S, Iida T, Yoshimura N. Short- and Long-Term Outcomes of Live Donor Renal Allografts From Older and Younger Donors. Transplant Proc 2018; 50:3228-3231. [PMID: 30577190 DOI: 10.1016/j.transproceed.2018.08.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 08/06/2018] [Accepted: 08/29/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND The rising demand for living renal donors has led to the recruitment of older donors. Findings vary, but these grafts appear to survive as long as grafts from standard criteria deceased and expanded criteria deceased donors. We investigated the effects of donor age ≥65 years and the presence or absence of donor antihypertensive therapy on patient condition 1 year after transplantation, and retrospectively examined 1-year (273 patients), 3-year (217 patients), and 5-year (140 patients) patient and graft survival. METHODS We divided 273 donor-recipient pairs into Group Y (donor age <65 years, n = 224) and Group O (donor age ≥65 years, n = 49). Group O was subdivided into donors receiving treatment for hypertension (subgroup O-1, n = 16) and those not receiving treatment for hypertension (subgroup O-2, n = 33). We compared results of 1 hour post-transplant biopsies and looked at a small number of 1 year post-transplant biopsies. RESULTS Although a significantly larger percentage of recipients from younger donors were undergoing preemptive transplantation, and the incidence of arteriosclerosis was significantly higher in the Group O kidneys, there were no significant differences between the 2 groups in terms of patient or graft survival at 1, 3, or 5 years; serum creatinine levels; or number of episodes of acute rejection. The presence or absence of donor antihypertensive treatment had no effect. CONCLUSIONS We found that donor age ≥65, with or without antihypertensive treatment, had no effect on graft or patient survival.
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Affiliation(s)
- T Matsuyama
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - H Ushigome
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - M Osaka
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Masuda
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Harada
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Nakamura
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Nobori
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Iida
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - N Yoshimura
- Department of Transplant Surgery, University Hospital Kyoto Prefectural University of Medicine, Kyoto, Japan
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Tsuchiya Y, Tsujiuchi T, Iwagaki T, Mochida R, Ishikawa N, Katsuragawa T, Masuda K, Taga T, Kojima T, Ogihara A, Negayama K, Kumano H. Difficulties in Life: Four Years after the Great East Japan Earthquake. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky218.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Tsuchiya
- Waseda University, Tokorozawa-shi, Japan
| | | | - T Iwagaki
- Waseda University, Tokorozawa-shi, Japan
| | - R Mochida
- Waseda University, Tokorozawa-shi, Japan
| | - N Ishikawa
- Waseda University, Tokorozawa-shi, Japan
| | | | - K Masuda
- Waseda University, Tokorozawa-shi, Japan
| | - T Taga
- Waseda University, Tokorozawa-shi, Japan
| | - T Kojima
- Waseda University, Tokorozawa-shi, Japan
| | - A Ogihara
- Waseda University, Tokorozawa-shi, Japan
| | - K Negayama
- Waseda University, Tokorozawa-shi, Japan
| | - H Kumano
- Waseda University, Tokorozawa-shi, Japan
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Ishigaki T, Asanuma T, Yagi N, Izumi H, Shimizu S, Fujisawa Y, Miyahira Y, Kushima R, Masuda K, Nakatani S. 2231Improvement in diagnostic accuracy of single-vessel coronary stenosis by the analysis of post-systolic shortening derived from non-stress speckle tracking echocardiography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.2231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T Ishigaki
- Shiga University of Medical Science, Department of Clinical Laboratory Medicine, Otsu, Japan
| | - T Asanuma
- Osaka University Graduate School of Medicine, Department of Health Sciences, Division of Functional Diagnostics, Suita, Japan
| | - N Yagi
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Otsu, Japan
| | - H Izumi
- Shiga University of Medical Science, Department of Clinical Laboratory Medicine, Otsu, Japan
| | - S Shimizu
- Shiga University of Medical Science, Department of Clinical Laboratory Medicine, Otsu, Japan
| | - Y Fujisawa
- Shiga University of Medical Science, Department of Clinical Laboratory Medicine, Otsu, Japan
| | - Y Miyahira
- Shiga University of Medical Science, Department of Clinical Laboratory Medicine, Otsu, Japan
| | - R Kushima
- Shiga University of Medical Science, Department of Clinical Laboratory Medicine, Otsu, Japan
| | - K Masuda
- Osaka University Graduate School of Medicine, Department of Health Sciences, Division of Functional Diagnostics, Suita, Japan
| | - S Nakatani
- Osaka University Graduate School of Medicine, Department of Health Sciences, Division of Functional Diagnostics, Suita, Japan
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Aalen J, Remme EW, Krogh MR, Andersen OS, Masuda K, Odland HH, Opdahl A, Smiseth OA. P3739Septal rebound stretch is a tug of war between septum and left ventricular lateral wall. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J Aalen
- Dep. of Cardiology and Inst. for Surgical Research, Oslo University Hospital, Oslo, Norway
| | - E W Remme
- Oslo University Hospital, Inst. for Surgical Research, Oslo, Norway
| | - M R Krogh
- Oslo University Hospital, Inst. for Surgical Research, Oslo, Norway
| | - O S Andersen
- Dep. of Cardiology and Inst. for Surgical Research, Oslo University Hospital, Oslo, Norway
| | - K Masuda
- Osaka University Hospital, Osaka, Japan
| | - H H Odland
- Dep. of Cardiology and Inst. for Surgical Research, Oslo University Hospital, Oslo, Norway
| | - A Opdahl
- Oslo University Hospital, Cardiology, Oslo, Norway
| | - O A Smiseth
- Dep. of Cardiology and Inst. for Surgical Research, Oslo University Hospital, Oslo, Norway
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Masuda K, Aalen J, Andersen OS, Krogh M, Odland HH, Stugaard M, Remme EW, Nakatani S, Smiseth OA. P2743Estimation of filling pressure by E/e' in left bundle branch block: why is it so difficult? Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Masuda
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - J Aalen
- Oslo University Hospital, Oslo, Norway
| | | | - M Krogh
- Oslo University Hospital, Oslo, Norway
| | | | - M Stugaard
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
| | - E W Remme
- Oslo University Hospital, Oslo, Norway
| | - S Nakatani
- Osaka University Graduate School of Medicine Division of Functional Diagnostics, Suita, Osaka, Japan
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Abe K, Hiraide K, Ichimura K, Kishimoto Y, Kobayashi K, Kobayashi M, Moriyama S, Nakahata M, Norita T, Ogawa H, Sato K, Sekiya H, Takachio O, Takeda A, Tasaka S, Yamashita M, Yang B, Kim N, Kim Y, Itow Y, Kanzawa K, Kegasa R, Masuda K, Takiya H, Fushimi K, Kanzaki G, Martens K, Suzuki Y, Xu B, Fujita R, Hosokawa K, Miuchi K, Oka N, Takeuchi Y, Kim Y, Lee K, Lee M, Fukuda Y, Miyasaka M, Nishijima K, Nakamura S. Direct dark matter search by annual modulation with 2.7 years of XMASS-I data. Int J Clin Exp Med 2018. [DOI: 10.1103/physrevd.97.102006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Masuda K, Murakami M, Tokunaga N, Kishibe M, Mori H, Utsunomiya R, Tsuda T, Shiraishi K, Tohyama M, Sayama K. 390 The micribome exists in the 'sterile' pustule of palmoplantar pustulosis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mori H, Murakami M, Utsunomiya R, Masuda K, Shiraishi K, Dai X, Tohyama M, Sayama K. 911 New role of exogenous HMGB1 for human keratinocyte under acute inflammatory event. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.923] [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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Koshino K, Ushigome H, Masuda K, Matsuyama T, Harada S, Nakamura T, Nobori S, Iida T, Yoshimura N. Effective Treatment With Daclatasvir and Asunaprevir in Kidney Transplant Patients Infected With Hepatitis C Virus: A Report of Two Cases. Transplant Proc 2018; 49:1053-1055. [PMID: 28583525 DOI: 10.1016/j.transproceed.2017.03.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Hepatitis C virus (HCV) infection is known to affect long-term patient and graft survivals after kidney transplantation (KT). Recently, combination therapy with the use of 2 oral direct-acting antivirals, daclatasvir (DCV) and asunaprevir (ASV) reportedly showed a high rate of HCV eradication. We report the safety and efficacy of DCV and ASV therapy in 2 KT patients. METHODS The safety and viral responses were investigated in a prospective study of KT patients infected with HCV genotype 1. Two patients received 60 mg DCV once daily plus 100 mg ASV twice daily for 24 weeks. RESULTS A 69-year-old woman and a 57-year-old man underwent DCV and ASV therapy for 24 weeks. In both cases, the HCV genotype was 1b. Case 1 had undergone KT twice and had received treatment with pegylated interferon and ribavirin. She received DCV and ASV therapy 12 years after the 2nd KT, and had undetectable virus after only 6 weeks of treatment and at 24 weeks after the end of treatment (SVR24). The post-transplantation immunosuppressive therapy at that time comprised tacrolimus, mycophenolate mofetil, and prednisolone. The other case, after failure of interferon treatment, received DCV and ASV therapy 27 years after his KT and achieved SVR24. His immunosuppressive regimen at that time was mizoribine and prednisolone. DCV and ASV therapy did not affect renal graft function or tacrolimus blood concentrations. CONCLUSIONS DCV and ASV therapy had high antiviral effect and a low rate of adverse events in KT patients.
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Affiliation(s)
- K Koshino
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - H Ushigome
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Masuda
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Matsuyama
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Harada
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Nakamura
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Nobori
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Iida
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - N Yoshimura
- Department of Organ Transplant and Regenerative Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Nakao T, Nakamura T, Masuda K, Matsuyama T, Ushigome H, Ashihara E, Yoshimura N. Dexamethasone Prolongs Cardiac Allograft Survival in a Murine Model Through Myeloid-derived Suppressor Cells. Transplant Proc 2018; 50:299-304. [DOI: 10.1016/j.transproceed.2017.11.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 11/03/2017] [Indexed: 01/21/2023]
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Nakamura N, Tamagawa-Mineoka R, Yasuike R, Masuda K, Matsunaka H, Murakami Y, Yokosawa E, Katoh N. 368 Interleukin-33 expression is elevated in the horny layer of patients with atopic dermatitis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Masuda K, Hattori J, Tamagawa-Mineoka R, Katoh N. 061 Clinical features of urticaria in children. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Mori H, Murakami M, Utsunomiya R, Masuda K, Shiraishi K, Dai X, Tohyama M, Sayama K. 369 Newly discovered function of reduced-HMGB1 as an inflammation suppressor in keratinocytes. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Utsunomiya R, Okazaki H, Dai X, Murakami M, Masuda K, Mori H, Shiraishi K, Tohyama M, Sayama K. 449 Novel function of heparinoid as an anti-inflammatory agent. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Stugaard M, Kamimukai T, Masuda K, Asanuma T, Nakatani S. P4334Characterization of relative pressure profiles in the inflow tract of the normal and ischemic left ventricle. a study by new ultrasonic relative pressure imaging. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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