1
|
Nomura M, Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. Thiourea fused γ-amino alcohol organocatalysts for asymmetric Mannich reaction of β-keto active methylene compounds with imines. RSC Adv 2023; 13:3715-3722. [PMID: 36756606 PMCID: PMC9891089 DOI: 10.1039/d2ra08317e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/18/2023] [Indexed: 01/27/2023] Open
Abstract
Catalytic functionality of new optically active thiourea fused γ-amino alcohols was examined in the asymmetric Mannich reaction of β-keto active methylene compounds with imines to afford chiral Mannich products, β-amino keto compounds, with continuous chiral centers, that are versatile synthetic intermediates for deriving various biologically active compounds. In particular, the thiourea fused γ-amino alcohols showed satisfactory catalytic activity in this reaction and afforded chiral Mannich products in excellent chemical yield (up to 88%) and stereoselectivities (up to syn : anti/93 : 7 dr, up to 99% ee).
Collapse
Affiliation(s)
- Miku Nomura
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Yuko Okuyama
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan .,Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba-Ku Sendai 981-8558 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku Medical and Pharmaceutical University4-4-1 Komatsushima, Aoba-KuSendai 981-8558Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| | - Michio Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | - Suguru Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585 Japan
| |
Collapse
|
2
|
Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. New boro amino amide organocatalysts for asymmetric cross aldol reaction of ketones with carbonyl compounds. RSC Adv 2023; 13:888-894. [PMID: 36686933 PMCID: PMC9811241 DOI: 10.1039/d2ra06272k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/20/2022] [Indexed: 01/05/2023] Open
Abstract
Distinct types of new boron fused primary amino amide organocatalysts were designed and synthesized from commercially available amino acids. Their catalytic activities were investigated in asymmetric crossed aldol reaction of ketones with aromatic aldehydes to afford the corresponding chiral anti-aldol adducts with good chemical yields, moderate diastereoselectivity and good to excellent enantioselectivities (up to 94% yields, up to 90 : 10 dr, up to 94% ee).
Collapse
Affiliation(s)
- Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University4-4-1 Komatsushima, Aoba-KuSendai 981-8558Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University6-3 Aoba, Aramaki, Aoba-KuSendai 980-8578Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Michio Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | - Suguru Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| |
Collapse
|
3
|
Sato A, Azuma M, Nagai H, Imai W, Kawaguchi K, Morita M, Okuyama Y, Ishii N, So T. OX40 Ligand-Mannose-Binding Lectin Fusion Protein Induces Potent OX40 Cosignaling in CD4 + T Cells. Biol Pharm Bull 2022; 45:1798-1804. [PMID: 36450532 DOI: 10.1248/bpb.b22-00493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
OX40, a member of the tumor necrosis factor (TNF) receptor superfamily, is induced on activated T cells. Membrane-bound OX40 ligand (OX40L) expressed by activated antigen-presenting cells induces OX40 signaling, which promotes T cell immunity. OX40 agonism would be a potential target for immunotherapy, however, it remains unclear how the activity of OX40 can be successfully controlled by a designer OX40L protein. We prepared a soluble OX40L protein possessing a PA-peptide tag and a collagenous trimerization domain from mannose-binding lectin (MBL), and tested whether PA-MBL-OX40L fusion protein worked as an agonist for OX40. We found that the majority of recombinant PA-MBL-OX40L protein purified from culture supernatants displayed a trimer structure and bound to cell surface OX40 or OX40-Fc fusion protein in a dose-dependent manner. Upon stimulation of CD4+ T cells with TCR/CD3 without CD28, PA-MBL-OX40L displayed significantly increased proliferative and cytokine responses when compared with a benchmark agonistic monoclonal antibody for OX40. Both soluble and immobilized forms of PA-MBL-OX40L induced potent OX40 signaling in CD4+ T cells. Mice administered with PA-MBL-OX40L displayed significantly augmented T cell-mediated delayed-type hypersensitivity responses. Our results suggest that activity of OX40L could be engineered to elicit better T cell responses by rational design of its assembly and architecture.
Collapse
Affiliation(s)
- Ayaka Sato
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Mitsuki Azuma
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Hodaka Nagai
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Wakana Imai
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Kosuke Kawaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Masashi Morita
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University
| | - Takanori So
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama.,Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University
| |
Collapse
|
4
|
Fukuyama M, Horie M, Kato K, Ozawa T, Fujii Y, Okuyama Y, Makiyama T, Ohno S, Nakagawa Y. Calmodulinopathy is a common cause of critical cardiac phenotypes in fetus and infancy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.667] [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
Cardiac calmodulinopathy is a life-threatening arrhythmia syndrome which presents several phenotypes of inherited primary arrhythmia syndrome (IPAS), and caused by mutations in calmodulin-encoded genes (CALM1–3). We aimed clarify the frequency and their clinical characteristics of calmodulinopathy in our IPAS cohort.
Methods
By using next generation sequencing, we screened arrhythmia related genes including calmodulin-encoding genes in 322 unrelated symptomatic children (0–12 years) who were suspected as IPAS; they included 40 cases with lethal arrhythmic attacks (LAE) under 6-year-old. After gene screening, we investigated their physiological and clinical characteristics about mutation carriers.
Results
Among 322 children, we identified 6 mutations of calmodulin-encoded genes in 9 probands (2.8%); one CALM1 in 2 probands (N98S), and 5 CALM2 in 7 probands (E46K, D96V, D96G, N98S, E141K). Their clinical diagnoses were long QT syndrome (LQTS, n=4), catecholaminergic polymorphic ventricular tachycardia (CPVT, n=3) and both (n=2). Their age of diagnosis ranges at 0–9 with the median of 5 years. There were three major clinical phenotypes; 1) CALM2-D96V, and E141K: two infants with advanced atrio-ventricular block, significant QTc prolongation, severe heart failure from their fetal period – both of them deceased within 1.5-year-old. Their clinical phenotypes resembled classical Timothy syndrome caused by CACNA1C mutations. 2) CALM1-N98S (n=2), CALM2-N98S (n=2), and CALM2-D96G: four preschoolers with LAEs and one syncope: all of them were 3–5 years old. In addition, a T wave morphology of CALM2-D96G carrier was very similar to LQT1. 3) CALM2-E46K (n=2): two were first diagnosed with neurological and developmental disorders, and showed phenotype of CPVT: their cardiac phenotypes were milder compared with that of 1) or 2). Overall, these phenotypes seemed to be mutation specific (indicated in figure). Their cardiac features were severer, and the onset of LAEs was earlier compared with other genotypes of LQTS/CPVT. As the treatment, β-blocker was effective for control of LAEs.
Conclusion
Cardiac calmodulinopathy presented serious and potentially lethal phenotypes in fetus or infancy. To prevent cardiac death in them, we must correctly diagnose and start the treatment as earlier as possible.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): MEXT KAKENHI from the Ministry of Education, Culture, Sports, Science, and Technology of Japan
Collapse
Affiliation(s)
- M Fukuyama
- Shiga University of Medical Science, Department of Cardiovascular Medicine , Otsu , Japan
| | - M Horie
- Shiga University of Medical Science, Department of Cardiovascular Medicine , Otsu , Japan
| | - K Kato
- Shiga University of Medical Science, Department of Cardiovascular Medicine , Otsu , Japan
| | - T Ozawa
- Shiga University of Medical Science, Department of Cardiovascular Medicine , Otsu , Japan
| | - Y Fujii
- Shiga University of Medical Science, Department of Cardiovascular Medicine , Otsu , Japan
| | - Y Okuyama
- Shiga University of Medical Science, Department of Cardiovascular Medicine , Otsu , Japan
| | - T Makiyama
- Kyoto University Graduate School of Medicine, Department of Cardiovascular Medicine , Kyoto , Japan
| | - S Ohno
- National Cerebral and Cardiovascular Center, Department of Bioscience and Genetics , Osaka , Japan
| | - Y Nakagawa
- Shiga University of Medical Science, Department of Cardiovascular Medicine , Otsu , Japan
| |
Collapse
|
5
|
Kawahara E, Azuma M, Nagashima H, Omori K, Akiyama S, Fujimori Y, Oishi M, Shibui N, Kawaguchi K, Morita M, Okuyama Y, Ishii N, So T. TNF Receptor-Associated Factor 5 Limits IL-27 Receptor Signaling in CD4 + T Lymphocytes. J Immunol 2022; 208:642-650. [PMID: 34996840 DOI: 10.4049/jimmunol.2001358] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 11/26/2021] [Indexed: 06/14/2023]
Abstract
TNF receptor-associated factor 5 (TRAF5) restrains early signaling activity of the IL-6 receptor in naive CD4+ T cells by interacting with the shared gp130 chain, although TRAF5 was initially discovered as a cytoplasmic adaptor protein to activate signaling mediated by TNF receptor family molecules. This leads to the question of whether TRAF5 limits signaling via the receptor for IL-27, which is composed of gp130 and WSX-1. The aim of this study is to clarify the role of TRAF5 in IL-27 receptor signaling and to understand the differential role of TRAF5 on cytokine receptor signaling. We found that Traf5 -/- CD4+ T cells displayed significantly higher levels of phosphorylated STAT1 and STAT-regulated genes Socs3 and Tbx21, as early as 1 h after IL-27 exposure when compared with Traf5 +/+ CD4+ T cells. Upon IL-27 and TCR signals, the Traf5 deficiency significantly increased the induction of IL-10 and promoted the proliferation of CD4+ T cells. Traf5 -/- mice injected with IL-27 displayed significantly enhanced delayed-type hypersensitivity responses, demonstrating that TRAF5 works as a negative regulator for IL-27 receptor signaling. In contrast, IL-2 and proliferation mediated by glucocorticoid-induced TNF receptor-related protein (GITR) and TCR signals were significantly decreased in Traf5 -/- CD4+ T cells, confirming that TRAF5 works as a positive regulator for cosignaling via GITR. Collectively, our results demonstrate that TRAF5 reciprocally controls signals mediated by the IL-27 receptor and GITR in CD4+ T cells and suggest that the regulatory activity of TRAF5 in gp130 is distinct from that in TNF receptor family molecules in a T cell.
Collapse
Affiliation(s)
- Eigo Kawahara
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Mitsuki Azuma
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Hiroyuki Nagashima
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Koki Omori
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Sho Akiyama
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Yuka Fujimori
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Mayu Oishi
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Nagito Shibui
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Kosuke Kawaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Masashi Morita
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Takanori So
- Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan; and
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Tohoku University, Sendai, Japan
| |
Collapse
|
6
|
Nakano H, Ganesan D, Parasuraman P, Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Thiyagarajan R. New Sugar Based γ-Amino Silyl Ether Organocatalysts for Asymmetric Michael Addition of β-Keto Esters with Nitroolefins. HETEROCYCLES 2022. [DOI: 10.3987/com-21-s(r)2] [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: 11/19/2022]
|
7
|
Tashiro R, Niizuma K, Kasamatsu J, Okuyama Y, Rashad S, Kikuchi A, Fujimura M, Kure S, Ishii N, Tominaga T. Dysregulation of Rnf 213 gene contributes to T cell response via antigen uptake, processing, and presentation. J Cell Physiol 2021; 236:7554-7564. [PMID: 33973242 DOI: 10.1002/jcp.30396] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 04/02/2021] [Accepted: 04/07/2021] [Indexed: 01/16/2023]
Abstract
Growing evidence suggest the association between Moyamoya disease (MMD) and immune systems, such as antigen presenting cells in particular. Rnf213 gene, a susceptibility gene for MMD, is highly expressed in immune tissues, however, its function remains unclear. In addition, the physiological role of RNF213 gene polymorphism c.14576G > A (rs112735431), susceptibility variant for MMD, is also poorly understood. By studying Rnf213-knockout (Rnf213-KO) mice with deletion of largest exon32 and Rnf213-knockin (Rnf213-KI) mice with insertion of single-nucleotide polymorphism corresponding to c.14576G > A mutation in MMD patients, we aimed to investigate the role of RNF213 in dendritic cell development, and antigen processing and presentation. First, we found a high level of Rnf213 gene expression in conventional DCs and monocytes. Second, flow cytometric and confocal microscopic analysis revealed ovalbumin protein-pulsed Rnf213-KO and Rnf213-KI DCs showed impaired antigen uptake, proteolysis and reduced numbers of endosomes and lysosomes, and thereby failed to activate and proliferate antigen-specific T cells efficiently. In addition, Rnf213-KI DCs showed a similar phenotype to that of Rnf213-KO BMDCs. In conclusion, our findings suggest the critical role of RNF213 in antigen uptake, processing and presentation.
Collapse
Affiliation(s)
- Ryosuke Tashiro
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kuniyasu Niizuma
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Neurosurgical Engineering and Translational Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Neurosurgical Engineering and Translational Neuroscience, Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | - Jun Kasamatsu
- Department of Intelligent Network for Infection Control, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Sherif Rashad
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Neurosurgical Engineering and Translational Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsuo Kikuchi
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Miki Fujimura
- Department of Neurosurgery, Kohnan Hospital, Sendai, Japan
- Division of Advanced Cerebrovascular Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shigeo Kure
- Department of Pediatrics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
8
|
Matsubara M, Sonoda S, Watanabe M, Okuyama Y, Okazaki H, Okamoto S, Mizuno S. ADL Outcome of Stroke by Stroke Type and Time from Onset to Admission to a Comprehensive Inpatient Rehabilitation Ward. J Stroke Cerebrovasc Dis 2021; 30:106110. [PMID: 34587577 DOI: 10.1016/j.jstrokecerebrovasdis.2021.106110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVE To examine the effect of onset to admission interval (OAI) and stroke type on activities of daily living (ADL) outcome. MATERIALS AND METHODS Stroke patients (n=3112) admitted to and discharged from comprehensive inpatient rehabilitation wards at Nanakuri Memorial Hospital were classified into 8 OAI segments and by stroke type [intracerebral hemorrhage (ICH) and cerebral infarction (CI)]. Motor subscore of the Functional Independence Measure (FIM-M) on admission, FIM-M at discharge, FIM-M gain, length of stay (LOS), and FIM-M efficiency in the ICH and CI group matched by OAI segment were compared using the Wilcoxon test. Multiple comparisons using the Steel-Dwass test of FIM-M on admission, FIM-M at discharge, FIM-M gain, LOS, and FIM-M efficiency by OAI segments were performed. RESULTS FIM-M on admission was lower in the ICH group than the CI group in matched OAI segments. However, FIM-M improvement was greater in the ICH group than the CI group, resulting in no difference in FIM-M between groups at discharge. In both groups, the longer the OAI, the lower the FIM-M on admission and at discharge. The distribution pattern of significant differences among OAI segments differed between the groups. LOS tended to be longer and FIM-M efficiency tended to be higher in the ICH group than in the CI group. CONCLUSIONS The brain mass effect at the time of admission was larger and took longer to decrease in the ICH group than in the CI group. These results may improve prediction of outcomes in comprehensive inpatient rehabilitation wards.
Collapse
Affiliation(s)
| | - Shigeru Sonoda
- Fujita Health University Nanakuri Memorial Hospital, Tsu, Mie, Japan
| | - Makoto Watanabe
- Fujita Health University Nanakuri Memorial Hospital, Tsu, Mie, Japan
| | - Yuko Okuyama
- Fujita Health University Nanakuri Memorial Hospital, Tsu, Mie, Japan
| | - Hideto Okazaki
- Fujita Health University Nanakuri Memorial Hospital, Tsu, Mie, Japan
| | - Sayaka Okamoto
- Fujita Health University Nanakuri Memorial Hospital, Tsu, Mie, Japan
| | - Shiho Mizuno
- Fujita Health University Nanakuri Memorial Hospital, Tsu, Mie, Japan
| |
Collapse
|
9
|
Parasuraman P, Ganesan D, Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. Simple amino silyl ether organocatalyst for asymmetric hetero Diels-Alder reaction of isatins with enones. Chirality 2021; 33:454-464. [PMID: 33987900 DOI: 10.1002/chir.23319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/19/2021] [Accepted: 04/28/2021] [Indexed: 11/08/2022]
Abstract
New two catalysts component system comprising of a primary β-amino silyl ethers as an organocatalyst and N-protected amino acids as a co-catalyst put together worked as an efficient organocatalyst system in the hetero Diels-Alder reaction of isatins with enones affording the chiral spirooxindole-tetrahydropyranones in good chemical yields and stereoselectivities (up to 94%, up to dr 78:22., up to 85% ee).
Collapse
Affiliation(s)
| | - Divakar Ganesan
- Graduate School of Engineering, Muroran Institute of Technology, Muroran, Japan
| | - Zubeda Begum
- Graduate School of Engineering, Muroran Institute of Technology, Muroran, Japan
| | - Chigusa Seki
- Graduate School of Engineering, Muroran Institute of Technology, Muroran, Japan
| | - Yuko Okuyama
- Department of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University, Sendai, Japan
| | - Koji Uwai
- Graduate School of Engineering, Muroran Institute of Technology, Muroran, Japan
| | | | | | | | - Hiroto Nakano
- Graduate School of Engineering, Muroran Institute of Technology, Muroran, Japan
| |
Collapse
|
10
|
Thiyagarajan R, Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. New small γ-turn type N-primary amino terminal tripeptide organocatalyst for solvent-free asymmetric aldol reaction of various ketones with aldehydes. RSC Adv 2021; 11:38925-38932. [PMID: 35493209 PMCID: PMC9044195 DOI: 10.1039/d1ra08635a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 01/18/2023] Open
Abstract
New small γ-turn type N-primary amino terminal tripeptides were synthesized and their functionality as an organocatalyst was examined in the asymmetric aldol reaction of various ketones with different aromatic aldehydes under solvent-free neat conditions to afford the desired chiral anti-aldol products in good to excellent chemical yields, diastereoselectivities and enantioselectivities (up to 99%, up to syn : anti/13 : 87 dr, up to 99% ee). New small γ-turn type N-primary amino terminal tripeptides were applied for the asymmetric aldol reaction of ketones with aldehydes under neat conditions to afford the chiral aldol products (up to 99%, up to syn : anti/13 : 87 dr, up to 99% ee).![]()
Collapse
Affiliation(s)
- Rajkumar Thiyagarajan
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-Ku, Sendai 981-8558, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences,Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-Ku, Sendai 981-8558, Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Michio Tokiwa
- Tokiwakai Group, 62 Numajiri Tsuduri-Chou Uchigo, Iwaki 973-8053, Japan
| | - Suguru Tokiwa
- Tokiwakai Group, 62 Numajiri Tsuduri-Chou Uchigo, Iwaki 973-8053, Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| |
Collapse
|
11
|
Begum Z, Sannabe H, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. Simple primary β-amino alcohols as organocatalysts for the asymmetric Michael addition of β-keto esters to nitroalkenes. RSC Adv 2020; 11:203-209. [PMID: 35423042 PMCID: PMC8690173 DOI: 10.1039/d0ra09041g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/03/2020] [Indexed: 11/21/2022] Open
Abstract
Simple primary β-amino alcohols act as an efficient organocatalysts in the asymmetric Michael addition of β-keto esters with nitroalkenes affording highly pure chiral Michael adducts. Also, both enantiomers of the adducts were obtained, depending on the specific catalyst used and reaction temperature.
Collapse
Affiliation(s)
- Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Haruka Sannabe
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba-Ku Sendai 981-8558 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University 6-3 Aoba, Aramaki, Aoba-Ku Sendai 980-8578 Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Michio Tokiwa
- Tokiwakai Group 62 Numajiri Tsuduri-Chou Uchigo Iwaki 973-8053 Japan
| | - Suguru Tokiwa
- Tokiwakai Group 62 Numajiri Tsuduri-Chou Uchigo Iwaki 973-8053 Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| |
Collapse
|
12
|
Niitsuma S, Kudo H, Kikuchi A, Hayashi T, Kumakura S, Kobayashi S, Okuyama Y, Kumagai N, Niihori T, Aoki Y, So T, Funayama R, Nakayama K, Shirota M, Kondo S, Kagami S, Tsukaguchi H, Iijima K, Kure S, Ishii N. Biallelic variants/mutations of IL1RAP in patients with steroid-sensitive nephrotic syndrome. Int Immunol 2020; 32:283-292. [PMID: 31954058 DOI: 10.1093/intimm/dxz081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 12/19/2019] [Indexed: 12/11/2022] Open
Abstract
Nephrotic syndrome (NS) is a renal disease characterized by severe proteinuria and hypoproteinemia. Although several single-gene mutations have been associated with steroid-resistant NS, causative genes for steroid-sensitive NS (SSNS) have not been clarified. While seeking to identify causative genes associated with SSNS by whole-exome sequencing, we found compound heterozygous variants/mutations (c.524T>C; p.I175T and c.662G>A; p.R221H) of the interleukin-1 receptor accessory protein (IL1RAP) gene in two siblings with SSNS. The siblings' parents are healthy, and each parent carries a different heterozygous IL1RAP variant/mutation. Since IL1RAP is a critical subunit of the functional interleukin-1 receptor (IL-1R), we investigated the effect of these variants on IL-1R subunit function. When stimulated with IL-1β, peripheral blood mononuclear cells from the siblings with SSNS produced markedly lower levels of cytokines compared with cells from healthy family members. Moreover, IL-1R with a variant IL1RAP subunit, reconstituted on a hematopoietic cell line, had impaired binding ability and low reactivity to IL-1β. Thus, the amino acid substitutions in IL1RAP found in these NS patients are dysfunctional variants/mutations. Furthermore, in the kidney of Il1rap-/- mice, the number of myeloid-derived suppressor cells, which require IL-1β for their differentiation, was markedly reduced although these mice did not show significantly increased proteinuria in acute nephrotic injury with lipopolysaccharide treatment. Together, these results identify two IL1RAP variants/mutations in humans for the first time and suggest that IL1RAP might be a causative gene for familial NS.
Collapse
Affiliation(s)
- Sou Niitsuma
- Department of Microbiology and Immunology, Endocrinology and Vascular Medicine, Sendai, Japan.,Department of Pediatrics, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Hiroki Kudo
- Department of Pediatrics, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Atsuo Kikuchi
- Department of Pediatrics, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Takaya Hayashi
- Department of Microbiology and Immunology, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Satoshi Kumakura
- Department of Microbiology and Immunology, Endocrinology and Vascular Medicine, Sendai, Japan.,Department of Nephrology, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Shuhei Kobayashi
- Department of Microbiology and Immunology, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Naonori Kumagai
- Department of Pediatrics, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Tetsuya Niihori
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoko Aoki
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Endocrinology and Vascular Medicine, Sendai, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Ryo Funayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keiko Nakayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Matsuyuki Shirota
- Division of Interdisciplinary Medical Science, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shuji Kondo
- Department of Pediatrics, Tokushima University Graduate School, Tokushima, Japan.,Department of Pediatrics, NHO Shikoku Medical Center for Children and Adults, Zentsuji, Japan
| | - Shoji Kagami
- Department of Pediatrics, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroyasu Tsukaguchi
- Second Department of Internal Medicine, Kansai Medical University, Hirakata, Japan
| | - Kazumoto Iijima
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Shigeo Kure
- Department of Pediatrics, Endocrinology and Vascular Medicine, Sendai, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Endocrinology and Vascular Medicine, Sendai, Japan
| |
Collapse
|
13
|
Sakurai T, Okuyama Y, Kobayashi S, Phung HT, Asao A, Kawabe T, Ndhlovu LC, Riccardi C, Kudo H, Wada M, Nio M, So T, Ishii N. GITR controls intestinal inflammation by suppressing IL-15-dependent NK cell activity. FASEB J 2020; 34:14820-14831. [PMID: 32910505 DOI: 10.1096/fj.202001675r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 01/16/2023]
Abstract
Glucocorticoid-induced TNFR family related gene (GITR) is a member of the TNFR superfamily that is expressed on cells of the immune system. Although the protective and pathogenic roles of GITR in T cell immunity are well characterized, the role of GITR in innate immunity in the intestinal tissues has not been well clarified. In this study, using a dextran sulfate sodium (DSS)-induced colitis model in mice, we found that GITR-deficiency rendered mice more susceptible to acute intestinal inflammation and that a significantly higher number of activated natural killer (NK) cells was accumulated in the colonic lamina propria of Gitr-/- mice as compared to wild-type mice. Additionally, Rag2-/- Gitr-/- mice, which lack T cells but have NK cells, also displayed more severe colonic inflammation than Rag2-/- mice. In contrast, an anti-GITR agonistic antibody significantly alleviated colitis in Rag2-/- mice. Engagement of GITR inhibited IL-15-mediated activating signaling events in NK cells, which include cell activation and proliferation, and production of cytokines and cytotoxic granules. Taken together, our results provide the first evidence that GITR negatively controls intestinal inflammation through NK cell functions.
Collapse
Affiliation(s)
- Tsuyoshi Sakurai
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shuhei Kobayashi
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hai The Phung
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsuko Asao
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takeshi Kawabe
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Lishomwa C Ndhlovu
- Department of Tropical Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Manoa, HI, USA
| | - Carlo Riccardi
- Department of Clinical and Experimental Medicine, Pharmacology Section, Perugia University Medical School, Perugia, Italy
| | - Hironori Kudo
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoshi Wada
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masaki Nio
- Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
14
|
Phung HT, Nagashima H, Kobayashi S, Asano N, Machiyama T, Sakurai T, Tayama S, Asao A, Imatani A, Kawabe T, Okuyama Y, Ishii N, So T. Correction: TRAF5 Deficiency Ameliorates the Severity of Dextran Sulfate Sodium Colitis by Decreasing TRAF2 Expression in Nonhematopoietic Cells. Immunohorizons 2020; 4:216. [PMID: 32327454 DOI: 10.4049/immunohorizons.2000022] [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] Open
|
15
|
Tayama S, Okuyama Y, Phung HT, Asao A, Kobayashi S, Musha T, Machiyama T, Sakurai T, Zhang C, Ushio-Fukai M, Kawabe T, So T, Ishii N. IQ motif-containing GTPase-activating protein 1 is essential for the optimal maintenance of lung ILC2s. Int Immunol 2020; 32:233-241. [PMID: 31819988 DOI: 10.1093/intimm/dxz077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/09/2019] [Indexed: 11/13/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) play critical roles in type 2 immunity and are crucial for pathogenesis of various types of inflammatory disease. IQ motif-containing GTPase-activating protein 1 (IQGAP1) is a ubiquitously expressed scaffold protein that is involved in multiple cellular functions such as cell survival and trafficking. While the roles for IQGAP1 in T and B lymphocytes have been uncovered, the physiological significance of IQGAP1 in innate lymphocytes remains to be elucidated. In the current study, we demonstrate that using bone marrow chimeras, the deficiency of IQGAP1 caused an impaired survival of lung ILC2s in a cell-intrinsic manner and that Iqgap1-/- mice displayed decreased accumulation of ILC2s after administration of papain and thereby reduced the pathology of the disease. Moreover, Iqgap1-/- ILC2s showed a significantly enhanced apoptosis as compared to wild-type ILC2s under both steady-state and inflammatory conditions. Together these results identify for the first time that IQGAP1 is essential for homeostasis of ILC2s in the lung.
Collapse
Affiliation(s)
- Shunichi Tayama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hai The Phung
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsuko Asao
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shuhei Kobayashi
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomomi Musha
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomoaki Machiyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tsuyoshi Sakurai
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Chengming Zhang
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masuko Ushio-Fukai
- Department of Medicine (Cardiology), Augusta University, Augusta, GA, USA
| | - Takeshi Kawabe
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Science, University of Toyama, Toyama, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|
16
|
Phung HT, Nagashima H, Kobayashi S, Asano N, Machiyama T, Sakurai T, Tayama S, Asao A, Imatani A, Kawabe T, Okuyama Y, Ishii N, So T. TRAF5 Deficiency Ameliorates the Severity of Dextran Sulfate Sodium Colitis by Decreasing TRAF2 Expression in Nonhematopoietic Cells. Immunohorizons 2020; 4:129-139. [PMID: 32156688 DOI: 10.4049/immunohorizons.2000007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 02/20/2020] [Indexed: 11/19/2022] Open
Abstract
TNFR-associated factor 5 (TRAF5) is a cytosolic adaptor protein and functions as an inflammatory regulator. However, the in vivo function of TRAF5 remains unclear, and how TRAF5 controls inflammatory responses in the intestine is not well understood. In this study, we found that intestinal epithelial cells from Traf5-/- mice expressed a significantly lower level of NF-κB-regulated proinflammatory genes, such as Tnf, Il6, and Cxcl1, as early as day 3 after dextran sulfate sodium (DSS) exposure when compared with wild-type mice. The intestinal barrier integrity of DSS-treated Traf5-/- mice remained intact at this early time point, and Traf5-/- mice showed decreased body weight loss and longer colon length at later time points. Surprisingly, the protein level of TRAF2, but not TRAF3, was reduced in colon tissues of Traf5-/- mice after DSS, indicating the requirement of TRAF5 for TRAF2 protein stability in the inflamed colon. Experiments with bone marrow chimeras confirmed that TRAF5 deficiency in nonhematopoietic cells caused the attenuated colitis. Our in vitro experiments demonstrated that proinflammatory cytokines significantly promoted the degradation of TRAF2 protein in Traf5-/- nonhematopoietic cells in a proteasome-dependent manner. Collectively, our data suggest a novel regulatory function of TRAF5 in supporting the proinflammatory function of TRAF2 in nonhematopoietic cells, which may be important for acute inflammatory responses in the intestine.
Collapse
Affiliation(s)
- Hai The Phung
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Hiroyuki Nagashima
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Shuhei Kobayashi
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Naoki Asano
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
| | - Tomoaki Machiyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan.,Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan; and
| | - Tsuyoshi Sakurai
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Shunichi Tayama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Atsuko Asao
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Akira Imatani
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
| | - Takeshi Kawabe
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan; .,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama 930-0194, Japan
| |
Collapse
|
17
|
Takeda Y, Okuyama Y, Nakano H, Yaoita Y, Machida K, Ogawa H, Imai K. Antiviral Activities of Hibiscus sabdariffa L. Tea Extract Against Human Influenza A Virus Rely Largely on Acidic pH but Partially on a Low-pH-Independent Mechanism. Food Environ Virol 2020; 12:9-19. [PMID: 31620998 PMCID: PMC7223586 DOI: 10.1007/s12560-019-09408-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/01/2019] [Indexed: 05/28/2023]
Abstract
Influenza A virus (IAV) infection is perennially one of the leading causes of death worldwide. Effective therapy and vaccination are needed to control viral expansion. However, current anti-IAV drugs risk inducing drug-resistant virus emergence. Although intranasal administration of whole inactivated virus vaccine can induce efficient protective immunity, formalin and β-propiolactone are the currently used and harmful inactivating agents. Here, we analyzed the antiviral activity of hibiscus (Hibiscus sabdariffa L.) tea extract against human IAV and evaluated its potential as a novel anti-IAV drug and a safe inactivating agent for whole inactivated vaccine. The in vitro study revealed that the pH of hibiscus tea extract is acidic, and its rapid and potent antiviral activity relied largely on the acidic pH. Furthermore, the mouse study showed that the acidic extract was not effective for either therapeutic or vaccination purposes. However, hibiscus tea extract and protocatechuic acid, one of the major components of the extract, showed not only potent acid-dependent antiviral activity but also weak low-pH-independent activity. The low-pH-independent activity did not affect the conformation of immunodominant hemagglutinin protein. Although this low-pH-independent activity is very limited, it may be suitable for the application to medication and vaccination because this activity is not affected by the neutral blood environment and does not lose antigenicity of hemagglutinin. Further study of the low-pH-independent antiviral mechanism and attempts to enhance the antiviral activity may establish a novel anti-IAV therapy and vaccination strategy.
Collapse
Affiliation(s)
- Yohei Takeda
- Research Center for Global Agromedicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, 981-8558, Japan
| | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, 050-8585, Japan
| | - Yasunori Yaoita
- Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, 981-8558, Japan
| | - Koich Machida
- Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, 981-8558, Japan
| | - Haruko Ogawa
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan.
| | - Kunitoshi Imai
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, 2-11 Inada, Obihiro, Hokkaido, 080-8555, Japan
| |
Collapse
|
18
|
Yagihashi K, Sonoda S, Watanabe M, Okamoto S, Okuyama Y, Okazaki H. Pattern of item score change in Stroke Impairment Assessment Set in comprehensive inpatient rehabilitation wards. Fujita Med J 2020; 6:49-53. [PMID: 35111521 PMCID: PMC8766651 DOI: 10.20407/fmj.2019-010] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/23/2019] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Although numerous studies have examined activities of daily living (ADL) in stroke rehabilitation, there has been little focus on impairment, despite its close relationship to ADL. Therefore, we evaluated the change in impairment from admission to discharge of patients with stroke in comprehensive inpatient rehabilitation wards using the Stroke Impairment Assessment Set (SIAS). METHODS Data from 3279 patients with first stroke who were admitted to comprehensive inpatient rehabilitation wards between 2004 and 2016 were analyzed. A scattergram of the items showing the percentage of the highest score on admission and the percentage of patients whose score improved during hospitalization was plotted. The items of the SIAS were grouped by their location on the scattergram. RESULTS Three clusters could be discriminated on the scattergram. The upper right group, showed an improved score during hospitalization in combination with a high percentage of patients with the highest score on admission. This group consisted of the verticality, unaffected-side quadriceps, visuospatial, and pain items of the SIAS. The upper left group improved during hospitalization, but only contained a small percentage of patients with a high score on admission, and consisted of motor function items. The lower group was characterized by poor improvement during hospitalization and consisted of sensory, tone, range of motion, speech, and grip power items. CONCLUSIONS Understanding the change in impairment during hospitalization using the three groups described above will facilitate design of a plan for stroke rehabilitation on admission.
Collapse
Affiliation(s)
- Kei Yagihashi
- Department of Rehabilitation Medicine II, Fujita Health University, School of
Medicine, Tsu, Mie, Japan,Department of Rehabilitation Medicine I, Fujita Health University, School of
Medicine, Toyoake, Aichi, Japan
| | - Shigeru Sonoda
- Department of Rehabilitation Medicine II, Fujita Health University, School of
Medicine, Tsu, Mie, Japan
| | - Makoto Watanabe
- Division of Rehabilitation, Fujita Health University Nanakuri Memorial
Hospital, Tsu, Mie, Japan
| | - Sayaka Okamoto
- Department of Rehabilitation Medicine II, Fujita Health University, School of
Medicine, Tsu, Mie, Japan
| | - Yuko Okuyama
- Division of Rehabilitation, Fujita Health University Nanakuri Memorial
Hospital, Tsu, Mie, Japan
| | - Hideto Okazaki
- Department of Rehabilitation Medicine II, Fujita Health University, School of
Medicine, Tsu, Mie, Japan
| |
Collapse
|
19
|
Parasuraman P, Begum Z, Chennapuram M, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. Simple organocatalyst component system for asymmetric hetero Diels–Alder reaction of isatins with enones. RSC Adv 2020; 10:17486-17491. [PMID: 35515584 PMCID: PMC9053445 DOI: 10.1039/d0ra03006f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 04/30/2020] [Indexed: 11/21/2022] Open
Abstract
A simple two catalyst component system consisting of primary β-amino alcohols as a catalyst and amino acids as a co-catalyst put together works as an efficient organocatalyst system in the hetero Diels–Alder reaction of isatins with enones to afford the chiral spirooxindole–tetrahydropyranones in good chemical yields and stereoselectivities (up to 86%, up to 85 : 15 dr., up to 95% ee). A simple two catalysts component system of β-amino alcohols (catalyst) and amino acids (co-catalyst) works as an efficient organocatalysts in hetero Diels–Alder reaction of isatins with enones to afford chiral spirooxindole-tetrahydropyranones.![]()
Collapse
Affiliation(s)
- Perumalsamy Parasuraman
- Division of Sustainable and Environmental Engineering
- Graduate School of Engineering
- Muroran Institute of Technology
- Muroran 050-8585
- Japan
| | - Zubeda Begum
- Division of Sustainable and Environmental Engineering
- Graduate School of Engineering
- Muroran Institute of Technology
- Muroran 050-8585
- Japan
| | - Madhu Chennapuram
- Division of Sustainable and Environmental Engineering
- Graduate School of Engineering
- Muroran Institute of Technology
- Muroran 050-8585
- Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering
- Graduate School of Engineering
- Muroran Institute of Technology
- Muroran 050-8585
- Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University
- Sendai 981-8558
- Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules
- Graduate School of Sciences
- Tohoku University
- Sendai 980-8578
- Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering
- Graduate School of Engineering
- Muroran Institute of Technology
- Muroran 050-8585
- Japan
| | | | | | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering
- Graduate School of Engineering
- Muroran Institute of Technology
- Muroran 050-8585
- Japan
| |
Collapse
|
20
|
Okuyama Y, Nagashima H, Ushio-Fukai M, Croft M, Ishii N, So T. IQGAP1 restrains T-cell cosignaling mediated by OX40. FASEB J 2019; 34:540-554. [PMID: 31914585 DOI: 10.1096/fj.201900879rr] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 10/25/2019] [Accepted: 11/01/2019] [Indexed: 12/17/2022]
Abstract
A costimulatory signal from the tumor necrosis factor receptor (TNFR) family molecule OX40 (CD134), which is induced on activated T cells, is important for T-cell immunity. Aberrant OX40 cosignaling has been implicated in autoimmune and inflammatory disorders. However, the molecular mechanism by which the OX40 cosignaling regulates the T-cell response remains obscure. We found that OX40 associated with a scaffold protein, IQ motif-containing GTPase-activating protein 1 (IQGAP1) after ligation by its ligand OX40L. Naïve CD4+ T cells from Iqgap1-/- mice displayed enhanced proliferation and cytokine secretion upon receiving OX40 cosignaling. A C-terminal IQGAP1 region was responsible for its association with OX40, and TNFR-associated factor 2 (TRAF2) bridged these two proteins. The enhanced cytokine response in Iqgap1-/- T cells was restored by the expression of the C-terminal IQGAP1. Thus, the IQGAP1 binding limits the OX40 cosignaling. Disease severity of experimental autoimmune encephalomyelitis (EAE) was significantly exacerbated in Iqgap1-/- mice as compared to wild-type mice. Additionally, recipient mice with Iqgap1-/- donor CD4+ T cells exhibited significantly higher EAE scores than those with their wild-type counterparts, and OX40 blockade led to a significant reduction in the EAE severity. Thus, our study defines an important component of the OX40 cosignaling that restricts inflammation driven by antigen-activated T cells.
Collapse
Affiliation(s)
- Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroyuki Nagashima
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| |
Collapse
|
21
|
Okuyama Y, Ashihara T, Ozawa T, Fujii Y, Kato K, Sugimoto Y, Nakagawa Y. P4764Relationship of the duration of pulmonary vein isolation-refractory non-paroxysmal atrial fibrillation to the middle- to long-term outcome of the ExTRa Mapping-guided ablation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1140] [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
Introduction
It is reported that for patients with non-paroxysmal (persistent or long-standing persistent) atrial fibrillation (Non-PAF), extended ablation to atrial walls in addition to pulmonary vein isolation (PVI) did not improve the long-term outcome. On the other hand, modulation of Non-PAF drivers (or perpetuators) has been proposed as one of the alternative effective ablation strategies for Non-PAF.
Purpose
To clarify whether the rotor ablation under online real-time high-density phase mapping system is effective for PVI-refractory Non-PAF ablation.
Methods
Under such circumstances, our academic group had recently developed the online real-time high-density phase mapping system (ExTRa Mapping™) by industrial alliance. The phase map moving images were based on 41 intra-atrial bipolar signals recorded by a 20-pole spiral-shaped catheter (2.5 cm in diameter) and on in silicorapid prediction of spatio-temporal atrial excitations (artificial intelligence system). Then we applied the ExTRa Mapping to clinical practice in order to directly visualize rotors in patients with Non-PAF, and investigated the middle- to long-term outcome of the ExTRa Mapping-guided rotor ablation (ExTRa-ABL).
Results
Thirty-eight patients (63±8 y/o, 30 males) with Non-PAF demonstrating refractoriness to PVI were enrolled in this study. Ablation for cavo-tricuspid isthmus and/or superior vena cava isolation was additionally performed at physicians' discretion. After these procedures, the ExTRa-ABL was performed in order to modify Non-PAF substrates, causing rotor control. The modification of the rotors was evaluated by re-mapping with the use of the ExTRa Mapping at the end of each ablation session. Patients were followed at 1, 3, 6 months and every year after the procedure. All of them were followed for 21±8 months. During the follow-up period, Non-PAF was recurred in only 8 of 38 (21%). Furthermore, we found if PVI-refractory Non-PAF duration was shorter than 6 years, the non-recurrence rate remained ≥80% (see Figure), which was markedly better outcome comparing with previous reports with regard to Non-PAF ablation.
Figure 1
Conclusion
Comparing with conventional Non-PAF ablation strategies, our novel approach with the use of the online real-time high-density phase mapping system might improve medium- to long-term outcome of PVI-refractory Non-PAF treatment.
Collapse
Affiliation(s)
- Y Okuyama
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Otsu, Japan
| | - T Ashihara
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Department of Medical Informatics and Biomedical Engineering, Otsu, Japan
| | - T Ozawa
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Otsu, Japan
| | - Y Fujii
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Otsu, Japan
| | - K Kato
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Otsu, Japan
| | - Y Sugimoto
- Shiga University of Medical Science, Department of Medical Informatics and Biomedical Engineering, Otsu, Japan
| | - Y Nakagawa
- Shiga University of Medical Science, Department of Cardiovascular Medicine, Department of Medical Informatics and Biomedical Engineering, Otsu, Japan
| |
Collapse
|
22
|
Kimura M, Nagashima H, Okuyama Y, Ishii N, So T. TRAF2 and TRAF5 associated with the signal transducing receptor gp130 limit IL-6-driven transphosphorylation of JAK1 through the inhibition of proximal JAK-JAK interaction. Int Immunol 2019; 30:291-299. [PMID: 29668931 DOI: 10.1093/intimm/dxy029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/10/2018] [Indexed: 02/03/2023] Open
Abstract
Tumor necrosis factor receptor-associated factor 2 (TRAF2) and TRAF5 constitutively bind to glycoprotein 130 kDa (gp130) and inhibit IL-6-driven activation of signal transducer and activator of transcription 3 (STAT3) in CD4+ T cells, which limits the differentiation of pro-inflammatory IL-17-producing helper T cells that require IL-6-receptor (IL-6R) signals for their development. However, it is not known how the interaction between TRAF and gp130 negatively regulates STAT3 activity in the IL-6R complex. We hypothesized that TRAF proteins associated with gp130 might limit the activation of Janus kinase that is needed for the activation of STAT3. To test this, we transfected HEK293T cells to express gp130 and TRAF2 or TRAF5 together with two chimeric JAK1 proteins combined with either the N-terminal or the C-terminal protein fragment of firefly luciferase. Using this luciferase fragment complementation system, we found that the recovery of luciferase enzyme activity was coincident with proximal JAK1-JAK1 interaction and phosphorylation of JAK1 in the IL-6R complex and that the expression of TRAF protein significantly inhibited the recovery of luciferase activity. The binding of TRAF to gp130 via the C-terminal TRAF domain was essential for the inhibition. In accordance with this, upon stimulation of endogenous gp130 with a complex of IL-6 and IL-6R, Traf5-/- CD4+ T cells displayed significantly higher amounts of phosphorylated JAK1 than did their wild-type counterparts. Therefore, our results demonstrate that gp130-associated TRAF2 and TRAF5 inhibit the interaction between two JAK proteins in the IL-6R complex that is essential for initiating the JAK-STAT signaling pathway.
Collapse
Affiliation(s)
- Masanobu Kimura
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Hiroyuki Nagashima
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Sugitani, Toyama, Japan
| |
Collapse
|
23
|
Togashi R, Chennapuram M, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. 2-Azanorbornane-Based Amino Alcohol Organocatalysts for Asymmetric Michael Reaction of β-Keto Esters with Nitroolefins. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Rei Togashi
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Madhu Chennapuram
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yuko Okuyama
- Graduate School of Engineering; Tohoku Medicinal and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8585 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Koji Uwai
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Michio Tokiwa
- Graduate School of Sciences; Tokiwakai Group; 62 Numajiri Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | - Mitsuhiro Takeshita
- Graduate School of Sciences; Tokiwakai Group; 62 Numajiri Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | - Hiroto Nakano
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| |
Collapse
|
24
|
Kamizato K, Sato S, Shil SK, Umaru BA, Kagawa Y, Yamamoto Y, Ogata M, Yasumoto Y, Okuyama Y, Ishii N, Owada Y, Miyazaki H. The role of fatty acid binding protein 7 in spinal cord astrocytes in a mouse model of experimental autoimmune encephalomyelitis. Neuroscience 2019; 409:120-129. [PMID: 31051217 DOI: 10.1016/j.neuroscience.2019.03.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 01/20/2023]
Abstract
Fatty acid binding protein 7 (FABP7) is expressed in astrocytes of the developing and mature central nervous system, and modulates astrocyte function by controlling intracellular fatty acid homeostasis. Astrocytes in the spinal cord have an important role in the process of myelin degeneration and regeneration. In the present study, the authors examined the role of FABP7 in astrocytes in a mouse model of experimental autoimmune encephalomyelitis (EAE), which is an established model of multiple sclerosis (MS). FABP7 was expressed in the white matter astrocytes and increased after EAE onset; particularly strong expression was observed in demyelinating regions. In FABP7-knockout (KO) mice, the onset of EAE symptoms occurred earlier than in wild type (WT) mice, and mRNA expression levels of inflammatory cytokines (IL-17 and TNF-α) were higher in FABP7-KO lumbar spinal cord than in WT lumbar spinal cord at early stage of EAE. Interestingly, however, the clinical score was significantly reduced in FABP7-KO mice compared with WT mice in the late phase of EAE. Moreover, the area exhibiting expression of fibronectin, which is an extracellular matrix protein mainly produced by astrocytes and inhibits remyelination of oligodendrocytes, was significantly decreased in FABP7-KO compared with WT mice. Collectively, FABP7 in astrocyte may have a role to protect from the induction of inflammation leading to demyelination in CNS at early phase of EAE. Moreover, FABP7 may be involved in the regulation of fibronectin production through the modification of astrocyte activation at late phase of EAE.
Collapse
Affiliation(s)
- Kenyu Kamizato
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Sho Sato
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Subrata Kumar Shil
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Banlanjo A Umaru
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoshiteru Kagawa
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yui Yamamoto
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Anatomy, Tohoku medical and Pharmaceutical University, Sendai, Japan
| | - Masaki Ogata
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan; Department of Anatomy, Tohoku medical and Pharmaceutical University, Sendai, Japan
| | - Yuki Yasumoto
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuji Owada
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | - Hirofumi Miyazaki
- Department of Organ Anatomy, Tohoku University Graduate School of Medicine, Sendai, Japan.
| |
Collapse
|
25
|
Owolabi IA, Chennapuram M, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. Amino Amide Organocatalysts for Asymmetric Michael Addition of β-Keto Esters with β-Nitroolefins. BCSJ 2019. [DOI: 10.1246/bcsj.20180302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Isiaka Alade Owolabi
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Madhu Chennapuram
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai, Miyagi 981-8558, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| | - Michio Tokiwa
- Tokiwakai Group, 62 Numajiri, Tsuduri-chou, Uchigo, Iwaki, Fukushima 973-8053, Japan
| | - Mitsuhiro Takeshita
- Tokiwakai Group, 62 Numajiri, Tsuduri-chou, Uchigo, Iwaki, Fukushima 973-8053, Japan
| | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto, Muroran, Hokkaido 050-8585, Japan
| |
Collapse
|
26
|
Nakano H, Ganesan D, Chennapuram M, Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M. Sugar Based γ-Amino Alcohol Organocatalyst for Asymmetric Michael Addition of β-Keto Esters with Nitroolefins. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
27
|
Chennapuram M, Owolabi IA, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. New Hybrid-type Squaramide-Fused Amino Alcohol Organocatalyst for Enantioselective Domino Michael Addition/Cyclization Reaction of Oxoindolines with Cyclic 1,3-Diketones. ACS Omega 2018; 3:11718-11726. [PMID: 31459268 PMCID: PMC6645594 DOI: 10.1021/acsomega.8b01271] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/03/2018] [Indexed: 05/04/2023]
Abstract
The new hybrid-type squaramide-fused amino alcohol containing both a Brønsted basic site and hydrogen-bonding sites in the molecule showed a high catalytic activity as an organocatalyst in the enantioselective domino Michael addition/cyclization reaction of oxoindolines with cyclic 1,3-diketones to afford the chiral spiro-conjugated oxindoles featuring 2-aminopyrans fusing with carbo-heterocyclic ring systems with excellent chemical yields (up to 98%) and enantioselectivities (up to 95% ee). The obtained chiral spiro-conjugated 2-aminopyrans bearing quaternary stereogenic carbon center could be used as synthetic precursors for several natural products that have a broad spectrum of fascinating biological activities.
Collapse
Affiliation(s)
- Madhu Chennapuram
- Division
of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Isiaka Alade Owolabi
- Division
of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Chigusa Seki
- Division
of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Yuko Okuyama
- Tohoku
Medical and Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan
| | - Eunsang Kwon
- Research
and Analytical Centre for Giant Molecules, Graduate School of Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Koji Uwai
- Division
of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
| | - Michio Tokiwa
- Tokiwakai
Group, 62 Numajiri, Tsuduri-chou Uchigo, Iwaki 973-8053, Japan
| | | | - Hiroto Nakano
- Division
of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan
- E-mail: . http://www3.muroran-it.ac.jp/hnakano/
| |
Collapse
|
28
|
Okuyama Y, Tanaka Y, Jiang JJ, Kamimura D, Nakamura A, Ota M, Ohki T, Higo D, Ogura H, Ishii N, Atsumi T, Murakami M. Bmi1 Regulates IκBα Degradation via Association with the SCF Complex. J Immunol 2018; 201:2264-2272. [PMID: 30209188 DOI: 10.4049/jimmunol.1701223] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 08/20/2018] [Indexed: 12/22/2022]
Abstract
Bmi1 is a polycomb group protein and regulator that stabilizes the ubiquitination complex PRC1 in the nucleus with no evidently direct link to the NF-κB pathway. In this study, we report a novel function of Bmi1: its regulation of IκBα ubiquitination in the cytoplasm. A deficiency of Bmi1 inhibited NF-κB-mediated gene expression in vitro and a NF-κB-mediated mouse model of arthritis in vivo. Mechanistic analysis showed that Bmi1 associated with the SCF ubiquitination complex via its N terminus and with phosphorylation by an IKKα/β-dependent pathway, leading to the ubiquitination of IκBα. These effects on NF-κB-related inflammation suggest Bmi1 in the SCF complex is a potential therapeutic target for various diseases and disorders, including autoimmune diseases.
Collapse
Affiliation(s)
- Yuko Okuyama
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan.,Laboratory of Developmental Immunology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Yuki Tanaka
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Jing-Jing Jiang
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan.,Laboratory of Developmental Immunology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan.,Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Daisuke Kamimura
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan; .,Laboratory of Developmental Immunology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan.,Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Akihiro Nakamura
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan.,Laboratory of Developmental Immunology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Mitsutoshi Ota
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Takuto Ohki
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Daisuke Higo
- Thermo Fisher Scientific, Tokyo 140-0002, Japan; and
| | - Hideki Ogura
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan.,Laboratory of Developmental Immunology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan.,Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Toru Atsumi
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan.,Laboratory of Developmental Immunology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan.,Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| | - Masaaki Murakami
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan; .,Laboratory of Developmental Immunology, Graduate School of Medicine, Osaka University, Osaka 565-0871, Japan.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan.,Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Hokkaido University, Sapporo 060-0815, Japan.,Division of Molecular Psychoimmunology, Graduate School of Medicine, Hokkaido University, Sapporo 060-0815, Japan
| |
Collapse
|
29
|
Owolabi IA, Subba Reddy U, Chennapuram M, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. A new type of amino amide organocatalyzed enantioselective crossed aldol reaction of ketones with aromatic aldehydes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
30
|
Yoshioka N, Kurata K, Takahashi T, Ariizumi M, Mori T, Fujisawa H, Kameyama N, Okuyama Y. Body odour aldehyde reduction by acetic acid bacterial extract including enzymes: alcohol dehydrogenase and aldehyde dehydrogenase. Int J Cosmet Sci 2018; 40:425-428. [PMID: 29897105 DOI: 10.1111/ics.12473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 06/11/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The major causes of unpleasant human body odour are aldehydes produced by axillary-resident bacteria. There are many methods of body odour prevention; however, they all carry risks of destroying indigenous dermal bacteria that are necessary for the maintenance of the normal physical function of the skin. Furthermore, some methods cannot directly reduce the concentrations of substances that cause body odour. Therefore, a novel method of reducing body odour more safely and effectively is required. We focused on acetic acid bacterial enzymes, which can convert aldehydes into carboxylic acids, and investigated their effect on aldehydes and body odour. METHODS Subjects with strong body odour were recruited using screening questionnaires. Acetic acid bacterial extract including enzymes was applied to subjects' skin, and their effects were evaluated by trained panellists and by quantitative aldehyde analysis using thermal detector gas chromatography/mass spectrometry. RESULTS Acetic acid bacterial extract including enzymes decreased the ratio of dilution to threshold and the concentration of body odour-producing aldehydes dropped by up to 98.7%. CONCLUSION These results indicate that simply applying acetic acid bacterial enzymes on the skin can reduce the concentration of aldehydes that cause unpleasant body odour by directly converting them into carboxylic acids. Therefore, acetic acid bacterial enzymes can potentially be developed into new products that do not destroy indigenous bacteria and yet can effectively reduce unpleasant body odour.
Collapse
Affiliation(s)
- N Yoshioka
- Kewpie Co., 2-5-7 Sengawa-cho, Chofu-shi, Tokyo, 182-0002, Japan
| | - K Kurata
- Kewpie Co., 2-5-7 Sengawa-cho, Chofu-shi, Tokyo, 182-0002, Japan
| | - T Takahashi
- Kewpie Co., 2-5-7 Sengawa-cho, Chofu-shi, Tokyo, 182-0002, Japan
| | - M Ariizumi
- Kewpie Co., 2-5-7 Sengawa-cho, Chofu-shi, Tokyo, 182-0002, Japan
| | - T Mori
- Environmental Control Center Co., Ltd., 3-7-23 Sandamachi, Hachioji-shi, Tokyo, 193-0832, Japan
| | - H Fujisawa
- Environmental Control Center Co., Ltd., 3-7-23 Sandamachi, Hachioji-shi, Tokyo, 193-0832, Japan
| | - N Kameyama
- Environmental Control Center Co., Ltd., 3-7-23 Sandamachi, Hachioji-shi, Tokyo, 193-0832, Japan
| | - Y Okuyama
- Kewpie Co., 2-5-7 Sengawa-cho, Chofu-shi, Tokyo, 182-0002, Japan
| |
Collapse
|
31
|
Machiyama T, So T, Okuyama Y, Kobayashi S, Phung HT, Asao A, Harigae H, Ishii N. TNF receptor associated factor 5 controls oncostatin M-mediated lung inflammation. Biochem Biophys Res Commun 2018; 499:544-550. [DOI: 10.1016/j.bbrc.2018.03.186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 03/25/2018] [Indexed: 10/17/2022]
|
32
|
Nagashima H, Okuyama Y, Fujita T, Takeda T, Motomura Y, Moro K, Hidaka T, Omori K, Sakurai T, Machiyama T, Ndhlovu LC, Riccardi C, So T, Ishii N. GITR cosignal in ILC2s controls allergic lung inflammation. J Allergy Clin Immunol 2018; 141:1939-1943.e8. [PMID: 29427641 DOI: 10.1016/j.jaci.2018.01.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 12/29/2017] [Accepted: 01/29/2018] [Indexed: 10/18/2022]
Affiliation(s)
- Hiroyuki Nagashima
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tsuyoshi Fujita
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takeo Takeda
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yasutaka Motomura
- Laboratory for Innate Immune Systems, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Kazuyo Moro
- Laboratory for Innate Immune Systems, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Takanori Hidaka
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Koki Omori
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tsuyoshi Sakurai
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tomoaki Machiyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Lishomwa C Ndhlovu
- Department of Tropical Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Carlo Riccardi
- Section of Pharmacology, Department of Medicine, University of Perugia, Perugia, Italy
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan; Laboratory of Molecular Cell Biology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan.
| |
Collapse
|
33
|
Nakano H, Alade Owolabi I, Chennapuram M, Okuyama Y, Kwon E, Seki C, Tokiwa M, Takeshita M. β-Amino Alcohol Organocatalysts for Asymmetric Additions. HETEROCYCLES 2018. [DOI: 10.3987/rev-18-sr(t)3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
34
|
Atsumi T, Suzuki H, Jiang JJ, Okuyama Y, Nakagawa I, Ota M, Tanaka Y, Ohki T, Katsunuma K, Nakajima K, Hasegawa Y, Ohara O, Ogura H, Arima Y, Kamimura D, Murakami M. Rbm10 regulates inflammation development via alternative splicing of Dnmt3b. Int Immunol 2017; 29:581-591. [PMID: 29309623 DOI: 10.1093/intimm/dxx067] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 11/22/2017] [Indexed: 12/17/2023] Open
Abstract
RNA-binding motif 10 (Rbm10) is an RNA-binding protein that regulates alternative splicing, but its role in inflammation is not well defined. Here, we show that Rbm10 controls appropriate splicing of DNA (cytosine-5)-methyltransferase 3b (Dnmt3b), a DNA methyltransferase, to regulate the activity of NF-κB-responsive promoters and consequently inflammation development. Rbm10 deficiency suppressed NF-κB-mediated responses in vivo and in vitro. Mechanistic analysis showed that Rbm10 deficiency decreased promoter recruitment of NF-κB, with increased DNA methylation of the promoter regions in NF-κB-responsive genes. Consistently, Rbm10 deficiency increased the expression level of Dnmt3b2, which has enzyme activity, while it decreased the splicing isoform Dnmt3b3, which does not. These two isoforms associated with NF-κB efficiently, and overexpression of enzymatically active Dnmt3b2 suppressed the expression of NF-κB targets, indicating that Rbm10-mediated Dnmt3b2 regulation is important for the induction of NF-κB-mediated transcription. Therefore, Rbm10-dependent Dnmt3b regulation is a possible therapeutic target for various inflammatory diseases.
Collapse
Affiliation(s)
- Toru Atsumi
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hironao Suzuki
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Jing-Jing Jiang
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuko Okuyama
- Laboratory of Developmental Immunology, Graduate School of Frontier Biosciences, Graduate School of Medicine, and WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Ikuma Nakagawa
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Mitsutoshi Ota
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuki Tanaka
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Takuto Ohki
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kokichi Katsunuma
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Koichi Nakajima
- Department of Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yoshinori Hasegawa
- Department of Research & Development, Kazusa DNA Research Institute, Chiba, Japan
| | - Osamu Ohara
- Department of Research & Development, Kazusa DNA Research Institute, Chiba, Japan
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Kanagawa, Japan
| | - Hideki Ogura
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yasunobu Arima
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Daisuke Kamimura
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masaaki Murakami
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| |
Collapse
|
35
|
Chennapuram M, Subba Reddy UV, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. Hybrid-Type Squaramide-Fused Amino Alcohol Organocatalysts for Enantioselective Diels-Alder Reactions of 3-Hydroxy-2-Pyridones with Maleimides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700830] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Madhu Chennapuram
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - U. V. Subba Reddy
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Centre for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri, Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto-cho 050-8585 Muroran Japan
| |
Collapse
|
36
|
Sakata K, Ozawa T, Okuyama Y, Haraguchi R, Tsuchiya T, Horie M, Ashihara T. P2649Not all non-paroxysmal atrial fibrillation drivers are included in complex fractionated electrogram area or low-voltage area: ExTRa Mapping project. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2649] [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: 11/13/2022] Open
|
37
|
Sakata K, Okuyama Y, Ozawa T, Haraguchi R, Horie M, Ashihara T. P3979Using large-tip ablation catheter markedly decreases bipolar signal amplitude near spiral wave center but this is not the case with using multi-electrode mapping catheter: A simulation study. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3979] [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
|
38
|
Sakata K, Ozawa T, Okuyama Y, Haraguchi R, Tsuchiya T, Horie M, Ashihara T. P1718Non-paroxysmal atrial fibrillation wave dynamics were determined by age rather than echocardiographic measurements and BNP: A clinical study using the ExTRa Mapping system. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1718] [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
|
39
|
Subba Reddy UV, Chennapuram M, Seki K, Seki C, Anusha B, Kwon E, Okuyama Y, Uwai K, Tokiwa M, Takeshita M, Nakano H. A Diamino Alcohol Catalyzed Enantioselective Crossed Aldol Reaction of Acetaldehyde with Isatins - A Concise Total Synthesis of Antitumor Agents. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700399] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ummareddy Venkata Subba Reddy
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Madhu Chennapuram
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Kento Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Bheemreddy Anusha
- Department of Chemistry; KVR Degree College (Women); -518001 Kurnool Andhra Pradesh India
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri Tsuduri-chou, Uchigo 973-8053 Iwaki Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| |
Collapse
|
40
|
Ito N, Watanabe S, Morita K, Morita K, Okuyama Y, Takizawa T, Suzuki K, Iida Y. THE EFFECT OF EXPIRATORY MUSCLE STRENGTH TRAINING ON THE SWALLOWING FUNCTIONS OF THE ELDERLY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.857] [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: 11/15/2022] Open
Affiliation(s)
- N. Ito
- Nihon Institute of Medical Science, Saitama, Japan,
- Graduate School of Gerontology J. F. Oberlin University, Tokyo, Japan,
| | - S. Watanabe
- Graduate School of Gerontology J. F. Oberlin University, Tokyo, Japan,
| | - K. Morita
- Mizuho-no-Sato Geriatric Health Services Facility, Saitama, Japan
| | - K. Morita
- Nihon Institute of Medical Science, Saitama, Japan,
- Graduate School of Gerontology J. F. Oberlin University, Tokyo, Japan,
| | - Y. Okuyama
- Nihon Institute of Medical Science, Saitama, Japan,
| | - T. Takizawa
- Nihon Institute of Medical Science, Saitama, Japan,
| | - K. Suzuki
- Nihon Institute of Medical Science, Saitama, Japan,
| | - Y. Iida
- Nihon Institute of Medical Science, Saitama, Japan,
| |
Collapse
|
41
|
Chennapuram M, Subba Reddy UV, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. Hybrid-Type Squaramide-Fused Amino Alcohol Organocatalysts for Enantioselective Nitro-Aldol Reaction of Nitromethane with Isatins. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700138] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Madhu Chennapuram
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - U. V. Subba Reddy
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri, Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| |
Collapse
|
42
|
Meng J, Jiang JJ, Atsumi T, Bando H, Okuyama Y, Sabharwal L, Nakagawa I, Higuchi H, Ota M, Okawara M, Ishitani R, Nureki O, Higo D, Arima Y, Ogura H, Kamimura D, Murakami M. Correction: Breakpoint Cluster Region-Mediated Inflammation Is Dependent on Casein Kinase II. J Immunol 2017; 198:971. [PMID: 28069757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
|
43
|
Meng J, Jiang JJ, Atsumi T, Bando H, Okuyama Y, Sabharwal L, Nakagawa I, Higuchi H, Ota M, Okawara M, Ishitani R, Nureki O, Higo D, Arima Y, Ogura H, Kamimura D, Murakami M. Breakpoint Cluster Region–Mediated Inflammation Is Dependent on Casein Kinase II. J I 2016; 197:3111-3119. [DOI: 10.4049/jimmunol.1601082] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 08/14/2016] [Indexed: 12/25/2022]
|
44
|
Kono N, Ohashi K, Okuyama Y, Mori S, Hiruma K, Akiyama H, Fukui T, Osumi K, Sakamaki H. Treatment of Relapsing Ph+ Acute Lymphoblastic Leukemia with Donor Leukocyte Infusion Followed by Quantitative Monitoring of Residual Disease. ACTA ACUST UNITED AC 2016; 6:261-5. [PMID: 27414845 DOI: 10.1080/10245332.2001.11746579] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The case of a 34-year-old man with relapsing Ph+ acute lymphoblastic leukemia (ALL), which occurred five months after allogeneic bone marrow transplantation, is described. He was originally treated with aggressive chemotherapy, which put him in hematological remission, and he subsequently received donor leukocyte infusion (DLI) form the original donor. To assess the efficacy of this adoptive immunotherapy, we monitored minor-BCR/ABL (m-BCR/ABL) mRNA levels using the recently established real-time quantitative RT-PCR (RQ-PCR) assay. The results were compared with those obtained using conventional qualitative RT-PCR assays run in parallel. RQ-PCR, but not RT-PCR-based, minimum residual disease (MRD) detection showed a good correlation with the rapid changes documented during the post-DLI clinical course. Currently, six months after DLI, the patient continues to be in remission, which is consistent with the undetectable levels of m-BCR/ABL mRNA in the leukemic clone using RQ-PCR found in this study. Thus, monitoring of m-bcr/abl transcripts using RQ-PCR provides more useful information on a clinical assessment of MRD.
Collapse
Affiliation(s)
- N Kono
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - K Ohashi
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - Y Okuyama
- b Blood Transfusion Service , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - S Mori
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - K Hiruma
- b Blood Transfusion Service , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - H Akiyama
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| | - T Fukui
- c Otsuka Assay Laboratories , Otsuka Pharmaceutical Company Limited , Tokyo , Japan
| | - K Osumi
- c Otsuka Assay Laboratories , Otsuka Pharmaceutical Company Limited , Tokyo , Japan
| | - H Sakamaki
- a Hematology Division , Tokyo Metropolitan Komagome Hospital , 3-18-22 Honkomagome, Bunkyo-ku, Tokyo 113-8677 , Japan
| |
Collapse
|
45
|
Kimura J, Subba Reddy UV, Kohari Y, Seki C, Mawatari Y, Uwai K, Okuyama Y, Kwon E, Tokiwa M, Takeshita M, Iwasa T, Nakano H. Simple Primary Amino Amide Organocatalyst for Enantioselective Aldol Reactions of Isatins with Ketones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600414] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jo Kimura
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Ummareddy Venkata Subba Reddy
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yoshihito Kohari
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yasuteru Mawatari
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Koji Uwai
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yuko Okuyama
- Tohoku Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8585 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | | | - Tatsuo Iwasa
- Division of Engineering for Composite Functions; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Hiroto Nakano
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| |
Collapse
|
46
|
Okuyama Y, Doi Y, Matsuyama N, Uchino M, Yamamoto T. A novel sol particle immunoassay for fecal calprotectin in inflammatory bowel disease patients. Clin Chim Acta 2016; 456:1-6. [PMID: 26908083 DOI: 10.1016/j.cca.2016.02.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 02/15/2016] [Accepted: 02/17/2016] [Indexed: 01/14/2023]
Abstract
BACKGROUND We introduce a new assay method to measure the concentration of fecal calprotectin that can be applied in exclusive analyzers. The assay method uses gold colloidal reagents. In addition, we report performance evaluation results for the new method and the results of comparisons with enzyme-linked immunosorbent assay (ELISA) methods. METHODS We evaluated the new method by linearity tests and within-run tests. In addition, we collected specimens from patients with a definitive diagnosis of inflammatory bowel disease (n=566) and examined them using the new method. The results were compared with those from 2 commercially available ELISA kits. RESULTS In the linearity tests, the correlation coefficients between the measured values and the theoretical values were 0.9980-0.9990. In the within-run tests, the CVs were 3.4-4.3%. The correlation coefficients for our method and the 2 ELISA kits showed high correlations of 0.945 and 0.942. CONCLUSIONS Our assay is capable of measuring calprotectin concentrations in feces, and has a similar performance to commercially available ELISA methods. Our method is an automated assay system, which is an easier, cheaper, and quicker measurement method than conventional ELISA kits. Therefore, our assay is suitable for daily clinical use.
Collapse
Affiliation(s)
- Yuko Okuyama
- Diagnostic R&D, Alfresa Pharma Corporation, Osaka, Japan.
| | - Yosuke Doi
- Diagnostic R&D, Alfresa Pharma Corporation, Osaka, Japan
| | | | - Michiyo Uchino
- Department of Clinical Laboratory, Yokkaichi Hazu Medical Center, Yokkaichi, Japan
| | - Takayuki Yamamoto
- Inflammatory Bowel Disease Center, Yokkaichi Hazu Medical Center, Yokkaichi, Japan
| |
Collapse
|
47
|
Reddy UVS, Chennapuram M, Seki C, Kwon E, Okuyama Y, Nakano H. Catalytic Efficiency of Primary β-Amino Alcohols and Their Derivatives in Organocatalysis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600164] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ummareddy Venkata Subba Reddy
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Madhu Chennapuram
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Yuko Okuyama
- Tohoku Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Hiroto Nakano
- Synthetic Organic Chemistry Lab; Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| |
Collapse
|
48
|
Nagashima H, Okuyama Y, Hayashi T, Ishii N, So T. TNFR-Associated Factors 2 and 5 Differentially Regulate the Instructive IL-6 Receptor Signaling Required for Th17 Development. J I 2016; 196:4082-9. [DOI: 10.4049/jimmunol.1501610] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 03/08/2016] [Indexed: 12/22/2022]
|
49
|
Kawakami K, Tanino G, Tomida K, Kato Y, Watanabe M, Okuyama Y, Sonoda S. Influence of increased amount of exercise on improvements in walking ability of convalescent patients with post-stroke hemiplegia. J Phys Ther Sci 2016; 28:602-6. [PMID: 27065551 PMCID: PMC4793018 DOI: 10.1589/jpts.28.602] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 11/17/2015] [Indexed: 01/19/2023] Open
Abstract
[Purpose] This study aimed to determine the effects of increased amount of physical
therapy exercise on improvements in the walking ability of patients with stroke. [Subjects
and Methods] The subjects were selected from patients with stroke who were hospitalized in
the convalescent rehabilitation ward, and included 91 patients who received physical
therapy for 2.5–3 exercise sessions per day during 2005–2006 (PT3unit group), and 86
patients who received physical therapy for 4.5–6 exercise sessions per day during
2010–2015 (PT6unit group). The functional independence measure (FIM) score evaluates the
walking ability of patients during hospital admission, 2 and 4 weeks after admission, and
at discharge. The FIM score was stratified according to the degree of lower limb motor
paralysis and subsequently compared between groups. [Results] Among the patients with
complete paralysis and severe paralysis, the FIM-Walking scores at 4 weeks after admission
and at discharge were significantly higher in the PT6unit group than in the PT3unit group.
No significant differences were found between the PT6unit and PT3unit groups for patients
with mild and moderate paralysis. [Conclusion] Higher amounts of physical therapy exercise
contributed to improvements in the walking ability of patients with complete and severe
lower limb paralysis.
Collapse
Affiliation(s)
| | - Genichi Tanino
- Fujita Health University Nanakuri Sanatorium, Japan; Division of Rehabilitation, Fujita Memorial Nanakuri Institute, Fujita Health University, Japan
| | - Ken Tomida
- Fujita Health University Nanakuri Sanatorium, Japan
| | - Yohei Kato
- Fujita Health University Nanakuri Sanatorium, Japan
| | | | - Yuko Okuyama
- Fujita Health University Nanakuri Sanatorium, Japan
| | - Shigeru Sonoda
- Fujita Health University Nanakuri Sanatorium, Japan; Division of Rehabilitation, Fujita Memorial Nanakuri Institute, Fujita Health University, Japan
| |
Collapse
|
50
|
Kawabe T, Suzuki N, Yamaki S, Sun SL, Asao A, Okuyama Y, So T, Iwakura Y, Ishii N. Mesenteric lymph nodes contribute to proinflammatory Th17-cell generation during inflammation of the small intestine in mice. Eur J Immunol 2016; 46:1119-31. [PMID: 26887964 DOI: 10.1002/eji.201545907] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 12/27/2015] [Accepted: 02/10/2016] [Indexed: 12/14/2022]
Abstract
T cells of the small intestine, including Th17 cells, are critically involved in host protection from microbial infection, and also contribute to the pathogenesis of small bowel inflammatory disorders. Accumulating evidence suggests that mesenteric lymph nodes (MLNs) play important roles in gut-tropic T-cell generation, although it is still unclear if MLNs are involved in the pathogenesis of small intestine inflammation. To address this issue, we analyzed the roles of both MLNs and Peyer's patches (PPs) by evaluating MLN- or PP-deficient mice in an experimental model of small intestine inflammation, induced by CD3-specific mAb injection. Interestingly, MLNs, but not PPs, were essential for the pathogenesis of intestinal inflammation, in particular the accumulation and infiltration of CD4(+) T-cell populations, including Th17 cells, from the blood. In addition, CD4(+) T-cell accumulation was dependent on the function of the α4 β7 integrin. Furthermore, MLN removal led to a significantly reduced number of peripheral α4 β7 (+) CD4(+) effector memory T cells under normal conditions, suggesting that MLNs may play a role in maintaining the number of gut-tropic CD4(+) effector memory T cells circulating in the blood. Taken together, the present study highlights the important role of MLNs in contributing to the pathogenesis of small intestine inflammation.
Collapse
Affiliation(s)
- Takeshi Kawabe
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Community Medical Supports, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Nobu Suzuki
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Satoshi Yamaki
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Shu-Lan Sun
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsuko Asao
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yuko Okuyama
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takanori So
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoichiro Iwakura
- Division of Experimental Animal Immunology, Research Institute for Biological Sciences, Tokyo University of Science, Chiba, Japan
| | - Naoto Ishii
- Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine, Sendai, Japan
| |
Collapse
|