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Matsuzawa M, Ando T, Fukase S, Kimura M, Kume Y, Ide T, Izawa K, Kaitani A, Hara M, Nakamura E, Kamei A, Matsuda A, Nakano N, Maeda K, Tada N, Ogawa H, Okumura K, Murakami A, Ebihara N, Kitaura J. The protective role of conjunctival goblet cell mucin sialylation. Nat Commun 2023; 14:1417. [PMID: 36932081 PMCID: PMC10023771 DOI: 10.1038/s41467-023-37101-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 02/27/2023] [Indexed: 03/19/2023] Open
Abstract
Gel-forming mucins secreted by conjunctival goblet cells have been implicated in the clearance of allergens, pathogens, and debris. However, their roles remain incompletely understood. Here we show that human and mouse conjunctival goblet cell mucins have Alcian blue-detectable sialic acids, but not sulfates in the steady state. Interestingly, Balb/c mouse strain lacks this sialylation due to a point mutation in a sialyltransferase gene, St6galnac1, which is responsible for sialyl-Tn synthesis. Introduction of intact St6galnac1 to Balb/c restores the sialylation of conjunctival goblet cell mucus. Sialylated mucus efficiently captures and encapsulates the allergen particles in an impenetrable layer, leading to the protection of mice from the development of allergic conjunctivitis. Expression of ST6GALNAC1 and sialyl-Tn is upregulated in humans under conditions with chronic stimuli. These results indicate that the sialylated glycans on the ocular mucins play an essential role in maintaining the conjunctival mucosa by protecting from the incoming foreign bodies such as allergen particles.
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Affiliation(s)
- Moe Matsuzawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Tomoaki Ando
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
| | - Saaya Fukase
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Meiko Kimura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Yasuharu Kume
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Takuma Ide
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Otorhinolaryngology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Kumi Izawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Ayako Kaitani
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Mutsuko Hara
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Laboratory of Molecular and Biochemical Research, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Eri Nakamura
- Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Anna Kamei
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Akira Matsuda
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Nobuhiro Nakano
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Keiko Maeda
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Immunological Diagnosis, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Norihiro Tada
- Center for Biomedical Research Resources, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Hideoki Ogawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Ko Okumura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Akira Murakami
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Nobuyuki Ebihara
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Jiro Kitaura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
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2
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Kawakami R, Usui S, Tada N, Itoh A. Late-stage diversification strategy for synthesizing ynamides through copper-catalyzed diynylation and azide-alkyne cycloaddition. Chem Commun (Camb) 2023; 59:450-453. [PMID: 36519388 DOI: 10.1039/d2cc05575a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A late-stage diversification strategy for synthesizing ynamides has been developed. This strategy was enabled by the copper-catalyzed direct electrophilic diynylation of sulfonamides with a novel triisopropylsilyl diynyl benziodoxolone, deprotection, and the late-stage chemoselective copper-catalyzed azide-alkyne cycloaddition sequence, which yields various complex molecule-derived ynamides with pyrene, amino acid, nucleoside, and N-acetylglucosamine as substituents.
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Affiliation(s)
- Ryohei Kawakami
- Laboratory of Pharmaceutical Synthetic Chemistry, Faculty of Pharmaceutical Science, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan.
| | - Suguru Usui
- Laboratory of Pharmaceutical Synthetic Chemistry, Faculty of Pharmaceutical Science, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan.
| | - Norihiro Tada
- Laboratory of Pharmaceutical Synthetic Chemistry, Faculty of Pharmaceutical Science, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan.
| | - Akichika Itoh
- Laboratory of Pharmaceutical Synthetic Chemistry, Faculty of Pharmaceutical Science, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu, 501-1196, Japan.
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3
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Itoh A, Tanemura T, Tada N, Yamaguchi E. Development of a fully automated continuous, integrated production system for all reaction processes of ibuprofen. REACT CHEM ENG 2023. [DOI: 10.1039/d3re00045a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
We developed a continuous, integrated production system for all reaction processes targeting ibuprofen. We succeeded in obtaining pure ibuprofen at 38% for all steps, and a production efficiency of 47...
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Fujiwara N, Miyahara K, Nakazawa-Tanaka N, Oishi Y, Akazawa C, Tada N, Yamataka A. Differentiation of enteric neural crest cells transplanted from SOX10-Venus mouse embryonic stem cells into the gut of the endothelin receptor B null mouse model. Pediatr Surg Int 2022; 39:18. [PMID: 36449105 DOI: 10.1007/s00383-022-05318-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/23/2022] [Indexed: 12/05/2022]
Abstract
PURPOSE Failure of enteric neural crest-derived cells (ENCCs) to correctly colonize the embryonic gut results in Hirschsprung's disease (HD). Embryonic stem cells (ESCs) have the potential to differentiate into all tissue-specific cells and lineages, including ENCCs. We investigated the cellular differentiation of ESCs from Sox10-Venus + mice into both control and endothelin receptor-B knockout (Ednrb KO) mouse gut to assess each region. METHODS We established ESCs from Sox10-Venus + mice. These cells were cultured for 2 days, then selected and co-cultured with either a dissociated control or Sox10-Venus - Ednrb KO mouse gut (both small intestine and colon) on embryonic day (E) 13.5. Four days later, cells were immunolabeled for Tuj1 and visualized using confocal microscopy. RESULTS Confocal microscopy revealed that transplanted Sox10-Venu + cells from ESCs migrated extensively within the host gut. Moreover, Tuj1-positive neurites were detected in the transplanted ESCs. Tuj1 expression was significantly decreased in aganglionic HD colon compared to controls (p < 0.05) and the HD small intestine (p < 0.05). CONCLUSIONS This study demonstrated that an appropriate host environment is crucial for normal and complete colonization of the gut. Further investigations are required to confirm whether modifying this environment can improve the results of this model.
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Affiliation(s)
- Naho Fujiwara
- Department of Pediatric General and Urogenital Surgery, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Katsumi Miyahara
- Department of Pediatric General and Urogenital Surgery, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Nana Nakazawa-Tanaka
- Department of Pediatric General and Urogenital Surgery, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
- Department of Pediatric Surgery, Juntendo Nerima Hospital, Nerima-ku, Tokyo, Japan
| | - Yoshie Oishi
- Medical Technology Innovation Center, Juntendo University Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Chihiro Akazawa
- Intractable Disease Research Center, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Norihiro Tada
- Atopy Research Center, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Atsuyuki Yamataka
- Department of Pediatric General and Urogenital Surgery, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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5
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Shimizu A, Shibata A, Kano T, Kumai Y, Kawakami R, Esaki H, Fukushima K, Tada N, Itoh A. Synthesis of 4-Imidazolidinones from Diamides and Ethynyl Benziodoxolones via Double Michael-Type Addition: Ethynyl Benziodoxolones as Electrophilic Ynol Synthons. Org Lett 2022; 24:8859-8863. [DOI: 10.1021/acs.orglett.2c03648] [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: 11/29/2022]
Affiliation(s)
- Ayaka Shimizu
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Atsushi Shibata
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Takashi Kano
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Yuuichi Kumai
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Ryouhei Kawakami
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Hiroyoshi Esaki
- Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
| | - Kazuaki Fukushima
- Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
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6
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Suzuki A, Iwaya C, Ogata K, Yoshioka H, Shim J, Tanida I, Komatsu M, Tada N, Iwata J. Impaired GATE16-mediated exocytosis in exocrine tissues causes Sjögren's syndrome-like exocrinopathy. Cell Mol Life Sci 2022; 79:307. [PMID: 35593968 DOI: 10.1007/s00018-022-04334-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 11/03/2022]
Abstract
Sjögren's syndrome (SjS) is a chronic autoimmune disease characterized by immune cell infiltration of the exocrine glands, mainly the salivary and lacrimal glands. Despite recent advances in the clinical and mechanistic characterization of the disease, its etiology remains largely unknown. Here, we report that mice with a deficiency for either Atg7 or Atg3, which are enzymes involved in the ubiquitin modification pathway, in the salivary glands exhibit a SjS-like phenotype, characterized by immune cell infiltration with autoantibody detection, acinar cell death, and dry mouth. Prior to the onset of the SjS-like phenotype in these null mice, we detected an accumulation of secretory vesicles in the acinar cells of the salivary glands and found that GATE16, an uncharacterized autophagy-related molecule activated by ATG7 (E1-like enzyme) and ATG3 (E2-like enzyme), was highly expressed in these cells. Notably, GATE16 was activated by isoproterenol, an exocytosis inducer, and localized on the secretory vesicles in the acinar cells of the salivary glands. Failure to activate GATE16 was correlated with exocytosis defects in the acinar cells of the salivary glands in Atg7 and Atg3 cKO mice. Taken together, our results show that GATE16 activation regulated by the autophagic machinery is crucial for exocytosis and that defects in this pathway cause SjS.
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Affiliation(s)
- Akiko Suzuki
- Department of Diagnostic & Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA.,Center for Craniofacial Research, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA
| | - Chihiro Iwaya
- Department of Diagnostic & Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA.,Center for Craniofacial Research, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA
| | - Kenichi Ogata
- Department of Diagnostic & Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA.,Center for Craniofacial Research, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA
| | - Hiroki Yoshioka
- Department of Diagnostic & Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA.,Center for Craniofacial Research, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA
| | - Junbo Shim
- Department of Diagnostic & Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA.,Center for Craniofacial Research, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA
| | - Isei Tanida
- Department of Cell Biology and Neuroscience, Juntendo University Graduate School of Medicine, Tokyo, 113-8431, Japan
| | - Masaaki Komatsu
- Department of Organ and Cell Physiology, Juntendo University Graduate School of Medicine, Tokyo, 113-8431, Japan
| | - Norihiro Tada
- Division of Genome Research, Research Institute for Diseases of Old Ages, Juntendo University School of Medicine, Tokyo, 113-8431, Japan
| | - Junichi Iwata
- Department of Diagnostic & Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA. .,Center for Craniofacial Research, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, 77054, USA. .,Pediatric Research Center, School of Medicine, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA. .,MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, 77030, USA.
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7
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Koga T, Sasaki F, Saeki K, Tsuchiya S, Okuno T, Ohba M, Ichiki T, Iwamoto S, Uzawa H, Kitajima K, Meno C, Nakamura E, Tada N, Fukui Y, Kikuta J, Ishii M, Sugimoto Y, Nakao M, Yokomizo T. Expression of leukotriene B 4 receptor 1 defines functionally distinct DCs that control allergic skin inflammation. Cell Mol Immunol 2021; 18:1437-1449. [PMID: 33037399 PMCID: PMC8167169 DOI: 10.1038/s41423-020-00559-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 11/25/2022] Open
Abstract
Leukotriene B4 (LTB4) receptor 1 (BLT1) is a chemotactic G protein-coupled receptor expressed by leukocytes, such as granulocytes, macrophages, and activated T cells. Although there is growing evidence that BLT1 plays crucial roles in immune responses, its role in dendritic cells remains largely unknown. Here, we identified novel DC subsets defined by the expression of BLT1, namely, BLT1hi and BLT1lo DCs. We also found that BLT1hi and BLT1lo DCs differentially migrated toward LTB4 and CCL21, a lymph node-homing chemoattractant, respectively. By generating LTB4-producing enzyme LTA4H knockout mice and CD11c promoter-driven Cre recombinase-expressing BLT1 conditional knockout (BLT1 cKO) mice, we showed that the migration of BLT1hi DCs exacerbated allergic contact dermatitis. Comprehensive transcriptome analysis revealed that BLT1hi DCs preferentially induced Th1 differentiation by upregulating IL-12p35 expression, whereas BLT1lo DCs accelerated T cell proliferation by producing IL-2. Collectively, the data reveal an unexpected role for BLT1 as a novel DC subset marker and provide novel insights into the role of the LTB4-BLT1 axis in the spatiotemporal regulation of distinct DC subsets.
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Affiliation(s)
- Tomoaki Koga
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Fumiyuki Sasaki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Soken Tsuchiya
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Mai Ohba
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Takako Ichiki
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Satoshi Iwamoto
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Hirotsugu Uzawa
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Keiko Kitajima
- Department of Developmental Biology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Chikara Meno
- Department of Developmental Biology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Eri Nakamura
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Norihiro Tada
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Yoshinori Fukui
- Division of Immunogenetics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, Fukuoka, 812-8582, Japan
| | - Junichi Kikuta
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, 565-0871, Japan
| | - Masaru Ishii
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, 565-0871, Japan
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Mitsuyoshi Nakao
- Department of Medical Cell Biology, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, 860-0811, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
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8
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Hayashi Y, Lee-Okada HC, Nakamura E, Tada N, Yokomizo T, Fujiwara Y, Ichi I. Ablation of fatty acid desaturase 2 (FADS2) exacerbates hepatic triacylglycerol and cholesterol accumulation in polyunsaturated fatty acid-depleted mice. FEBS Lett 2021; 595:1920-1932. [PMID: 34008174 DOI: 10.1002/1873-3468.14134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/22/2021] [Accepted: 05/10/2021] [Indexed: 12/14/2022]
Abstract
Deficiency of polyunsaturated fatty acids (PUFAs) is known to induce hepatic steatosis. However, it is not clearly understood which type of PUFA is responsible for the worsening of steatosis. This study observed a marked accumulation of hepatic triacylglycerol and cholesterol in fatty acid desaturase 2 knockout (FADS2-/- ) mice lacking both C18 and ≥ C20 PUFAs that were fed a PUFA-depleted diet. Hepatic triacylglycerol accumulation was associated with enhanced sterol regulatory element-binding protein (SREBP)-1-dependent lipogenesis and decreased triacylglycerol secretion into the plasma via very-low-density lipoprotein (VLDL). Furthermore, upregulation of cholesterol synthesis contributed to increased hepatic cholesterol content in FADS2-/- mice. These results suggest that ≥ C20 PUFAs synthesized by FADS2 are important in regulating hepatic triacylglycerol and cholesterol accumulation during PUFA deficiency.
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Affiliation(s)
- Yuri Hayashi
- Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo, Japan
| | - Hyeon-Cheol Lee-Okada
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Eri Nakamura
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Norihiro Tada
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoko Fujiwara
- Institute for Human Life Innovation, Ochanomizu University, Tokyo, Japan.,Natural Science Division, Faculty of Core Research, Ochanomizu University, Tokyo, Japan
| | - Ikuyo Ichi
- Institute for Human Life Innovation, Ochanomizu University, Tokyo, Japan.,Natural Science Division, Faculty of Core Research, Ochanomizu University, Tokyo, Japan
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9
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Nishina T, Deguchi Y, Ohshima D, Takeda W, Ohtsuka M, Shichino S, Ueha S, Yamazaki S, Kawauchi M, Nakamura E, Nishiyama C, Kojima Y, Adachi-Akahane S, Hasegawa M, Nakayama M, Oshima M, Yagita H, Shibuya K, Mikami T, Inohara N, Matsushima K, Tada N, Nakano H. Interleukin-11-expressing fibroblasts have a unique gene signature correlated with poor prognosis of colorectal cancer. Nat Commun 2021; 12:2281. [PMID: 33863879 PMCID: PMC8052408 DOI: 10.1038/s41467-021-22450-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/15/2021] [Indexed: 02/07/2023] Open
Abstract
Interleukin (IL)-11 is a member of the IL-6 family of cytokines and is involved in multiple cellular responses, including tumor development. However, the origin and functions of IL-11-producing (IL-11+) cells are not fully understood. To characterize IL-11+ cells in vivo, we generate Il11 reporter mice. IL-11+ cells appear in the colon in murine tumor and acute colitis models. Il11ra1 or Il11 deletion attenuates the development of colitis-associated colorectal cancer. IL-11+ cells express fibroblast markers and genes associated with cell proliferation and tissue repair. IL-11 induces the activation of colonic fibroblasts and epithelial cells through phosphorylation of STAT3. Human cancer database analysis reveals that the expression of genes enriched in IL-11+ fibroblasts is elevated in human colorectal cancer and correlated with reduced recurrence-free survival. IL-11+ fibroblasts activate both tumor cells and fibroblasts via secretion of IL-11, thereby constituting a feed-forward loop between tumor cells and fibroblasts in the tumor microenvironment. The stromal fibroblast population in the colon is composed of heterogeneous and distinct cell subtypes that play a crucial role in the development of colitis and colon cancer. Here the authors generate IL-11 reporter mice and characterize the origin and phenotype of inflammatory IL-11+ fibroblasts in colitis and colon cancer preclinical models.
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Affiliation(s)
- Takashi Nishina
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan.
| | - Yutaka Deguchi
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan
| | - Daisuke Ohshima
- Department of Physiology, Toho University School of Medicine, Tokyo, Japan
| | - Wakami Takeda
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan.,Laboratory of Molecular Biology and Immunology, Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Masato Ohtsuka
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, Isehara, Kanagawa, Japan.,The Institute of Medical Sciences, Tokai University, Isehara, Kanagawa, Japan
| | - Shigeyuki Shichino
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Satoshi Ueha
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Soh Yamazaki
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan
| | - Mika Kawauchi
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan
| | - Eri Nakamura
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, Japan
| | - Chiharu Nishiyama
- Laboratory of Molecular Biology and Immunology, Department of Biological Science and Technology, Faculty of Industrial Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Yuko Kojima
- Laboratory of Morphology and Image Analysis, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | | | - Mizuho Hasegawa
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Mizuho Nakayama
- WPI Nano Life Science Institute (WPI-Nano LSI), Division of Genetics, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Masanobu Oshima
- WPI Nano Life Science Institute (WPI-Nano LSI), Division of Genetics, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa, Japan
| | - Hideo Yagita
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kazutoshi Shibuya
- Department of Surgical Pathology, Toho University School of Medicine, Tokyo, Japan
| | - Tetuo Mikami
- Department of Pathology, Toho University School of Medicine, Tokyo, Japan
| | - Naohiro Inohara
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Kouji Matsushima
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
| | - Norihiro Tada
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, Japan
| | - Hiroyasu Nakano
- Department of Biochemistry, Toho University School of Medicine, Tokyo, Japan. .,Host Defense Research Center, Toho University School of Medicine, Tokyo, Japan.
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10
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Shimbo D, Maruyama T, Tada N, Itoh A. N-Alkenylation of hydroxamic acid derivatives with ethynyl benziodoxolone to synthesize cis-enamides through vinyl benziodoxolones. Org Biomol Chem 2021; 19:2442-2447. [PMID: 33666207 DOI: 10.1039/d1ob00055a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The stereoselective synthesis of cis-β-N-alkoxyamidevinyl benziodoxolones (cis-β-N-RO-amide-VBXs) from O-alkyl hydroxamic acids in the presence of an ethynyl benziodoxolone-acetonitrile complex (EBX-MeCN) is reported herein. The reaction was performed under mild conditions including an aqueous solvent, a mild base, and room temperature. The reaction tolerated various O-alkyl hydroxamic acids derived from carboxylic acids, such as amino acids, pharmaceuticals, and natural products. Vinyl dideuterated cis-β-N-MeO-amide-VBXs were also synthesized using deuterium oxide as the deuterium source. Valine-derived cis-β-N-MeO-amide-VBX was stereospecifically derivatized to hydroxamic acid-derived cis-enamides without the loss of stereoselectivity or reduction in the deuterium/hydrogen ratio.
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Affiliation(s)
- Daisuke Shimbo
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan.
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11
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Takai R, Shimbo D, Tada N, Itoh A. Ligand-Enabled Copper-Catalyzed N-Alkynylation of Sulfonamide with Alkynyl Benziodoxolone: Synthesis of Amino Acid-Derived Ynamide. J Org Chem 2021; 86:4699-4713. [PMID: 33719425 DOI: 10.1021/acs.joc.1c00101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ynamides are versatile building blocks in organic synthesis. However, the synthesis of amino acid-derived ynamides is difficult but in high demand. Herein, we disclose the copper-catalyzed Csp-N coupling of sulfonamide, including amino acid and peptide derivatives, to give ynamides by using alkynyl benziodoxolones with broad functional group tolerance under mild reaction conditions. The electron-rich bipyridine as a ligand and ethanol as solvent were used for the success of this reaction. The usefulness of the obtained amino acid-derived ynamide as building block was showcased by further derivatization to unique amino acid derivatives. A control experiment to elucidate the mechanistic insight was also described.
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Affiliation(s)
- Ryogo Takai
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Daisuke Shimbo
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
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12
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Sato S, Noda S, Torii S, Amo T, Ikeda A, Funayama M, Yamaguchi J, Fukuda T, Kondo H, Tada N, Arakawa S, Watanabe M, Uchiyama Y, Shimizu S, Hattori N. Homeostatic p62 levels and inclusion body formation in CHCHD2 knockout mice. Hum Mol Genet 2021; 30:443-453. [PMID: 33631794 DOI: 10.1093/hmg/ddab057] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/20/2021] [Accepted: 02/16/2021] [Indexed: 01/20/2023] Open
Abstract
Inactivation of constitutive autophagy results in the formation of cytoplasmic inclusions in neurones, but the relationship between impaired autophagy and Lewy bodies (LBs) remains unknown. α-Synuclein and p62, components of LBs, are the defining characteristic of Parkinson's disease (PD). Until now, we have analyzed mice models and demonstrated p62 aggregates derived from an autophagic defect might serve as 'seeds' and can potentially be a cause of LB formation. P62 may be the key molecule for aggregate formation. To understand the mechanisms of LBs, we analyzed p62 homeostasis and inclusion formation using PD model mice. In PARK22-linked PD, intrinsically disordered mutant CHCHD2 initiates Lewy pathology. To determine the function of CHCHD2 for inclusions formation, we generated Chchd2-knockout (KO) mice and characterized the age-related pathological and motor phenotypes. Chchd2 KO mice exhibited p62 inclusion formation and dopaminergic neuronal loss in an age-dependent manner. These changes were associated with a reduction in mitochondria complex activity and abrogation of inner mitochondria structure. In particular, the OPA1 proteins, which regulate fusion of mitochondrial inner membranes, were immature in the mitochondria of CHCHD2-deficient mice. CHCHD2 regulates mitochondrial morphology and p62 homeostasis by controlling the level of OPA1. Our findings highlight the unexpected role of the homeostatic level of p62, which is regulated by a non-autophagic system, in controlling intracellular inclusion body formation, and indicate that the pathologic processes associated with the mitochondrial proteolytic system are crucial for loss of DA neurones.
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Affiliation(s)
- Shigeto Sato
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Sachiko Noda
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Satoru Torii
- Department of Pathological Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Taku Amo
- Department of Applied Chemistry, National Defense Academy, Yokosuka 239-8686, Japan
| | - Aya Ikeda
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Manabu Funayama
- Research Institute for Diseases of Old Age, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan
| | - Junji Yamaguchi
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.,Laboratory of Morphology and Image Analysis, Research Support Center, Juntendo University Graduate School of Medicine, 113-8421, Japan
| | - Takahiro Fukuda
- Division of Neuropathology, Department of Neuropathology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Hiromi Kondo
- Histology Center, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan
| | - Norihiro Tada
- Atopy Research Center, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Satoko Arakawa
- Department of Pathological Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Masahiko Watanabe
- Department of Anatomy, Faculty of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Yasuo Uchiyama
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Shigeomi Shimizu
- Department of Pathological Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo 113-8510, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
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13
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Sakamoto K, Nakajima M, Kawamura K, Nakamura E, Tada N, Kondo A, Arai H, Miyajima M. Ependymal ciliary motion and their role in congenital hydrocephalus. Childs Nerv Syst 2021; 37:3355-3364. [PMID: 33999288 PMCID: PMC8578171 DOI: 10.1007/s00381-021-05194-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 04/27/2021] [Indexed: 11/01/2022]
Abstract
PURPOSE Since a case of hydrocephalus in humans considered to be caused by ciliary dysfunction was first reported by Greenstone et al. in 1984, numerous papers on the correlation between ciliary function and hydrocephalus have been published. METHODS We reviewed the published literature on primary ciliary dyskinesia in humans causing hydrocephalus, focusing on articles specifically examining the relation between ciliary function and hydrocephalus and its treatment. In addition, the authors' experience is briefly discussed. RESULTS Full texts of 16 articles reporting cases of human hydrocephalus (including ventriculomegaly) due to defects in ependymal ciliary function or primary ciliary dyskinesia observed in clinical practice were extracted. In recent years, studies on animal models, especially employing knockout mice, have revealed genetic mutations that cause hydrocephalus via ciliary dysfunction. However, a few reports on the onset of hydrocephalus in human patients with primary ciliary dyskinesia have confirmed that the incidence of this condition was extremely low compared to that in animal models. CONCLUSION In humans, it is rare for hydrocephalus to develop solely because of abnormalities in the cilia, and it is highly likely that other factors are also involved along with ciliary dysfunction.
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Affiliation(s)
- Koichiro Sakamoto
- grid.258269.20000 0004 1762 2738Department of Neurosurgery, Juntendo University, 2-1-1, Hongo Bunkyo-ku, Tokyo, 113-8421 Japan
| | - Madoka Nakajima
- Department of Neurosurgery, Juntendo University, 2-1-1, Hongo Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Kaito Kawamura
- grid.258269.20000 0004 1762 2738Department of Neurosurgery, Juntendo University, 2-1-1, Hongo Bunkyo-ku, Tokyo, 113-8421 Japan
| | - Eri Nakamura
- grid.258269.20000 0004 1762 2738Laboratory of Disease Model Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Norihiro Tada
- grid.258269.20000 0004 1762 2738Laboratory of Disease Model Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihide Kondo
- grid.258269.20000 0004 1762 2738Department of Neurosurgery, Juntendo University, 2-1-1, Hongo Bunkyo-ku, Tokyo, 113-8421 Japan
| | - Hajime Arai
- grid.258269.20000 0004 1762 2738Department of Neurosurgery, Juntendo University, 2-1-1, Hongo Bunkyo-ku, Tokyo, 113-8421 Japan
| | - Masakazu Miyajima
- Department of Neurosurgery, Juntendo Tokyo Koto Geriatric Medical Centre, Shinsuna Koto-ku, Tokyo, 136-0075 Japan
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14
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Ura T, Shimbo D, Yudasaka M, Tada N, Itoh A. Synthesis of Phenol-Derived cis-Vinyl Ethers Using Ethynyl Benziodoxolone. Chem Asian J 2020; 15:4000-4004. [PMID: 33058543 DOI: 10.1002/asia.202001102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/07/2020] [Indexed: 12/19/2022]
Abstract
The stereoselective synthesis of cis-β-phenoxyvinyl benziodoxolones (cis-β-phenol-VBXs) from an ethynyl benziodoxolone-acetonitrile complex (EBX-MeCN) and various phenols is reported herein. The reaction tolerates different phenol derivatives, including complex natural products, and can be conducted under mild conditions. The synthesis was performed in an aqueous solvent in the absence and presence of a catalytic amount of a base. Selectively mono- and di-deuterated cis-β-phenol-VBXs were also prepared. cis-β-Phenol-VBXs were stereospecifically derivatized to cis-alkynylvinyl ethers and cis-iodovinyl ethers without loss of stereoselectivity or reduction in the deuterium/hydrogen ratio.
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Affiliation(s)
- Tomoki Ura
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Daisuke Shimbo
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Masaharu Yudasaka
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Norihiro Tada
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Akichika Itoh
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
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15
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Oliva Trejo JA, Tanida I, Suzuki C, Kakuta S, Tada N, Uchiyama Y. Characterization of starvation-induced autophagy in cerebellar Purkinje cells of pHluorin-mKate2-human LC3B transgenic mice. Sci Rep 2020; 10:9643. [PMID: 32541814 PMCID: PMC7295967 DOI: 10.1038/s41598-020-66370-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 05/19/2020] [Indexed: 12/25/2022] Open
Abstract
We generated a new transgenic mouse model that expresses a pHluorin-mKate2 fluorescent protein fused with human LC3B (PK-LC3 mice) for monitoring autophagy activity in neurons of the central nervous system. Histological analysis revealed fluorescent puncta in neurons of the cerebral cortex, hippocampus, cerebellar Purkinje cells, and anterior spinal regions. Using CLEM analysis, we confirmed that PK-LC3-positive puncta in the perikarya of Purkinje cells correspond to autophagic structures. To validate the usability of PK-LC3 mice, we quantified PK-LC3 puncta in Purkinje cells of mice kept in normal feeding conditions and of mice starved for 24 hours. Our results showed a significant increase in autophagosome number and in individual puncta areal size following starvation. To confirm these results, we used morphometry at the electron microscopic level to analyze the volume densities of autophagosomes and lysosomes/autolysosomes in Purkinje cells of PK-LC3 mice. The results revealed that the volume densities of autophagic structures increase significantly after starvation. Together, our data show that PK-LC3 mice are suitable for monitoring autophagy flux in Purkinje cells of the cerebellum, and potentially other areas in the central nervous system.
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Affiliation(s)
- Juan Alejandro Oliva Trejo
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Isei Tanida
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan.
| | - Chigure Suzuki
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Soichiro Kakuta
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Norihiro Tada
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Bunkyo-Ku, Tokyo, Japan
| | - Yasuo Uchiyama
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Bunkyo-Ku, Tokyo, Japan.
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16
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Maruyama H, Taguchi A, Mikame M, Lu H, Tada N, Ishijima M, Kaneko H, Kawai M, Goto S, Saito A, Ohashi R, Nishikawa Y, Ishii S. Low bone mineral density due to secondary hyperparathyroidism in the GlatmTg(CAG-A4GALT) mouse model of Fabry disease. FASEB Bioadv 2020; 2:365-381. [PMID: 32617522 PMCID: PMC7325589 DOI: 10.1096/fba.2019-00080] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 09/23/2019] [Accepted: 04/27/2020] [Indexed: 01/08/2023] Open
Abstract
Low bone mineral density (BMD)—diagnosed as osteoporosis or osteopenia—has been reported as a new characteristic feature of Fabry disease; however, the mechanism underlying the development of low BMD is unknown. We previously revealed that a mouse model of Fabry disease [GlatmTg(CAG‐A4GALT)] exhibits impaired functioning of medullary thick ascending limb (mTAL), leading to insufficient Ca2+ reabsorption and hypercalciuria. Here, we investigated bone metabolism in GlatmTg(CAG‐A4GALT) mice without marked glomerular or proximal tubular damage. Low BMD was detected by 20 weeks of age via micro‐X‐ray‐computed tomography. Bone histomorphometry revealed that low BMD results by accelerated bone resorption and osteomalacia. Plasma parathyroid hormone levels increased in response to low blood Ca2+—not plasma fibroblast growth factor 23 (FGF‐23) elevation—by 5 weeks of age and showed progressively increased phosphaturic action. Secondary hyperparathyroidism developed by 20 weeks of age and caused hyperphosphatemia, which increased plasma FGF‐23 levels with phosphaturic action. The expression of 1α‐hydroxylase [synthesis of 1α,25(OH)2D3] in the kidney did not decrease, but that of 24‐hydroxylase [degradation of 1α,25(OH)2D3] decreased. Vitamin D deficiency was ruled out as the cause of osteomalacia, as plasma 1α,25(OH)2D3 and 25(OH)D3 levels were maintained. Results demonstrate that secondary hyperparathyroidism due to mTAL impairment causes accelerated bone resorption and osteomalacia due to hyperphosphaturia and hypercalciuria, leading to low BMD in Fabry model mice.
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Affiliation(s)
- Hiroki Maruyama
- Department of Clinical Nephroscience Niigata University Graduate School of Medical and Dental Sciences Niigata Niigata Japan
| | - Atsumi Taguchi
- Department of Clinical Nephroscience Niigata University Graduate School of Medical and Dental Sciences Niigata Niigata Japan
| | - Mariko Mikame
- Department of Clinical Nephroscience Niigata University Graduate School of Medical and Dental Sciences Niigata Niigata Japan
| | - Hongmei Lu
- Laboratory of Genome Research Research Institute for Diseases of Old Age Juntendo University Graduate School of Medicine Bunkyo-ku Tokyo Japan
| | - Norihiro Tada
- Laboratory of Genome Research Research Institute for Diseases of Old Age Juntendo University Graduate School of Medicine Bunkyo-ku Tokyo Japan
| | - Muneaki Ishijima
- Department of Medicine for Orthopaedics and Motor Organ Juntendo University Graduate School of Medicine Bunkyo-ku Tokyo Japan
| | - Haruka Kaneko
- Department of Medicine for Orthopaedics and Motor Organ Juntendo University Graduate School of Medicine Bunkyo-ku Tokyo Japan
| | - Mariko Kawai
- Department of Pharmacology Osaka Dental University Hirakata Osaka Japan
| | - Sawako Goto
- Department of Applied Molecular Medicine Niigata University Graduate School of Medical and Dental Sciences Niigata Niigata Japan
| | - Akihiko Saito
- Department of Applied Molecular Medicine Niigata University Graduate School of Medical and Dental Sciences Niigata Niigata Japan
| | - Riuko Ohashi
- Histopathology Core Facility Faculty of Medicine Niigata University Niigata Niigata Japan
| | - Yuji Nishikawa
- Division of Tumor Pathology Department of Pathology Asahikawa Medical University Asahikawa Hokkaido Japan
| | - Satoshi Ishii
- Department of Matrix Medicine Faculty of Medicine Oita University Yufu Oita Japan.,Biochemical Laboratory GlycoPharma Corporation Oita Oita Japan
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17
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Noda S, Sato S, Fukuda T, Tada N, Hattori N. Aging-related motor function and dopaminergic neuronal loss in C57BL/6 mice. Mol Brain 2020; 13:46. [PMID: 32293495 PMCID: PMC7092461 DOI: 10.1186/s13041-020-00585-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/10/2020] [Indexed: 01/07/2023] Open
Abstract
Aging-related dopaminergic neuronal loss and its motor phenotypes are well known. Excessive loss of dopaminergic neurons leads to Parkinson's disease (PD), the most common neurodegenerative disorder characterized by the loss of nigrostriatal dopamine-producing neurons. In mice, however, aging-related dopaminergic neuronal loss and its consequences for motor function are poorly understood. We observed the phenotype of wild-type C57BL/6 mice over an extended period of time. C57BL/6 mice exhibited age-dependent locomotor impairments, including hindlimb defects and the number of dopaminergic neurons decreased in aged mice, contributing to locomotor dysfunction. We observed a reduction in striatal dopamine levels in aged mice using high-performance liquid chromatography (HPLC). Thus, dopamine levels are affected by the loss of dopaminergic neurons. Furthermore, fragmented mitochondria were observed in dopaminergic neurons of aged mice but not in those of young mice. Aging-related dopaminergic neuronal loss and accumulation of damaged mitochondria may underlie the pathophysiology of aging.
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Affiliation(s)
- Sachiko Noda
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Shigeto Sato
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Takahiro Fukuda
- Division of Neuropathology, Department of Neuropathology, The Jikei University, School of Medicine, Tokyo, 105-8461, Japan
| | - Norihiro Tada
- Atopy Research Center, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
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18
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Noda S, Sato S, Fukuda T, Tada N, Uchiyama Y, Tanaka K, Hattori N. Loss of Parkin contributes to mitochondrial turnover and dopaminergic neuronal loss in aged mice. Neurobiol Dis 2019; 136:104717. [PMID: 31846738 DOI: 10.1016/j.nbd.2019.104717] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [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: 08/16/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 11/18/2022] Open
Abstract
Parkinson's disease (PD), the second most common neurodegenerative disorder, is characterized by the loss of nigrostriatal dopamine neurons. PARK2 mutations cause early-onset Parkinson's disease (EO-PD). PARK2 encodes an E3 ubiquitin ligase, Parkin. Extensive in vitro studies and cell line characterization have shown that Parkin is required for mitophagy, but the physiological pathology and context of the pathway remain unknown. In general, monogenic Parkin knockout mice do not accurately reflect human PD symptoms and exhibit no signs of dopaminergic (DA) neurodegeneration. To assess the critical role of Parkin-mediated mitophagy in DA neurons, we characterized Parkin knockout mice over a long period of time. At the age of 110 weeks, Parkin knockout mice exhibited locomotor impairments, including hindlimb defects and neuronal loss. In their DA neurons, fragmented mitochondria with abnormal internal structures accumulated. The age-related motor dysfunction and damaged mitochondria pathology in Parkin-deficient mice suggest that impairment of mitochondrial clearance may underlie the pathology of PD.
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Affiliation(s)
- Sachiko Noda
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Shigeto Sato
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Takahiro Fukuda
- Division of Neuropathology, Department of Neuropathology, The Jikei University, School of Medicine, Tokyo 105-8461, Japan
| | - Norihiro Tada
- Atopy Research Center, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Yasuo Uchiyama
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan
| | - Keiji Tanaka
- Laboratory of Protein Metabolism, Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
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19
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Shimbo D, Shibata A, Yudasaka M, Maruyama T, Tada N, Uno B, Itoh A. Synthesis of cis-β-Amidevinyl Benziodoxolones from the Ethynyl Benziodoxolone-Chloroform Complex and Sulfonamides. Org Lett 2019; 21:9769-9773. [PMID: 31742414 DOI: 10.1021/acs.orglett.9b03990] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis of cis-β-amidevinyl benziodoxolones from the ethynyl benziodoxolone-chloroform complex and sulfonamides is reported. Evidence indicates that highly reactive unsubstituted ethynyl benziodoxolone undergoes Michael addition of sulfonamides, including sterically demanding acyclic amino acid derivatives. The synthesis of selectively deuterated cis-β-amidevinyl benziodoxolones and investigation of ethynyl-λ3-iodane reactivity are also described.
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Affiliation(s)
- Daisuke Shimbo
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi , Gifu 501-1196 , Japan
| | - Atsushi Shibata
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi , Gifu 501-1196 , Japan
| | - Masaharu Yudasaka
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi , Gifu 501-1196 , Japan
| | - Toshifumi Maruyama
- Department of Chemistry and Biomolecular Science, Faculty of Engineering , Gifu University , Yanagido 1-1 , Gifu 501-1193 , Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi , Gifu 501-1196 , Japan
| | - Bunji Uno
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi , Gifu 501-1196 , Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi , Gifu 501-1196 , Japan
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20
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Hara-Yokoyama M, Kurihara H, Ichinose S, Matsuda H, Ichinose S, Kurosawa M, Tada N, Iwahara C, Terasawa K, Podyma-Inoue KA, Furukawa K, Iwabuchi K. KIF11 as a Potential Marker of Spermatogenesis Within Mouse Seminiferous Tubule Cross-sections. J Histochem Cytochem 2019; 67:813-824. [PMID: 31424977 DOI: 10.1369/0022155419871027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The arrangement of immature germ cells changes regularly and periodically along the axis of the seminiferous tubule, and is used to describe the progression of spermatogenesis. This description is based primarily on the changes in the acrosome and the nuclear morphology of haploid spermatids. However, such criteria cannot be applied under pathological conditions with arrested spermatid differentiation. In such settings, the changes associated with the differentiation of premeiotic germ cells must be analyzed. Here, we found that the unique bipolar motor protein, KIF11 (kinesin-5/Eg5), which functions in spindle formation during mitosis and meiosis in oocytes and early embryos, is expressed in premeiotic germ cells (spermatogonia and spermatocytes). Thus, we aimed to investigate whether KIF11 could be used to describe the progression of incomplete spermatogenesis. Interestingly, KIF11 expression was barely observed in haploid spermatids and Sertoli cells. The KIF11 staining allowed us to evaluate the progression of meiotic processes, by providing the time axis of spindle formation in both normal and spermatogenesis-arrested mutant mice. Accordingly, KIF11 has the potential to serve as an excellent marker to describe spermatogenesis, even in the absence of spermatid development.
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Affiliation(s)
- Miki Hara-Yokoyama
- Department of Biochemistry, Graduate School of Medical and Dental Sciences,Tokyo Medical and Dental University, Tokyo, Japan
| | - Hidetake Kurihara
- Department of Anatomy and Life Structure, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Faculty of Health Science, Aino University, Osaka, Japan
| | - Shozo Ichinose
- Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan
| | - Hironori Matsuda
- Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan
| | - Shizuko Ichinose
- Plastic Reconstructive & Regenerative Surgery, Nippon Medical School, Tokyo, Japan
| | - Masaru Kurosawa
- Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan
| | - Norihiro Tada
- Atopy Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Chihiro Iwahara
- Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan
| | - Kazue Terasawa
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Katarzyna A Podyma-Inoue
- Department of Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Koichi Furukawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Biomedical Sciences, Chubu University, Aichi, Japan
| | - Kazuhisa Iwabuchi
- Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, Japan
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21
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Usami K, Yamaguchi E, Tada N, Itoh A. Transition-Metal-Free Synthesis of Phenanthridinones through Visible-Light-Driven Oxidative C-H Amidation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900536] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kaoru Usami
- Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
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22
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Yokomizo T, Watanabe N, Umemoto T, Matsuo J, Harai R, Kihara Y, Nakamura E, Tada N, Sato T, Takaku T, Shimono A, Takizawa H, Nakagata N, Mori S, Kurokawa M, Tenen DG, Osato M, Suda T, Komatsu N. Hlf marks the developmental pathway for hematopoietic stem cells but not for erythro-myeloid progenitors. J Exp Med 2019; 216:1599-1614. [PMID: 31076455 PMCID: PMC6605751 DOI: 10.1084/jem.20181399] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/21/2018] [Accepted: 04/19/2019] [Indexed: 12/26/2022] Open
Abstract
Hematopoietic stem cells (HSCs) and HSC-independent progenitors are generated from hemogenic endothelium. Yokomizo et al. show that Hlf expression distinguishes nascent HSCs from HSC-independent progenitors. HSC specification, regulated by the Evi-1/Hlf axis, is activated only within Hlf+ nascent hematopoietic clusters. Before the emergence of hematopoietic stem cells (HSCs), lineage-restricted progenitors, such as erythro-myeloid progenitors (EMPs), are detected in the embryo or in pluripotent stem cell cultures in vitro. Although both HSCs and EMPs are derived from hemogenic endothelium, it remains unclear how and when these two developmental programs are segregated during ontogeny. Here, we show that hepatic leukemia factor (Hlf) expression specifically marks a developmental continuum between HSC precursors and HSCs. Using the Hlf-tdTomato reporter mouse, we found that Hlf is expressed in intra-aortic hematopoietic clusters and fetal liver HSCs. In contrast, EMPs and yolk sac hematopoietic clusters before embryonic day 9.5 do not express Hlf. HSC specification, regulated by the Evi-1/Hlf axis, is activated only within Hlf+ nascent hematopoietic clusters. These results strongly suggest that HSCs and EMPs are generated from distinct cohorts of hemogenic endothelium. Selective induction of the Hlf+ lineage pathway may lead to the in vitro generation of HSCs from pluripotent stem cells.
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Affiliation(s)
- Tomomasa Yokomizo
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan .,Department of Hematology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Naoki Watanabe
- Department of Hematology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Terumasa Umemoto
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Junichi Matsuo
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Ryota Harai
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoshihiko Kihara
- Department of Hematology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Leading Center for the Development and Research of Cancer Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Eri Nakamura
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Norihiro Tada
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tomohiko Sato
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomoiku Takaku
- Department of Hematology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihiko Shimono
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Hitoshi Takizawa
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Naomi Nakagata
- Division of Reproductive Engineering, Center for Animal Resources and Development, Kumamoto University, Kumamoto, Japan
| | - Seiichi Mori
- Division of Cancer Genomics, Cancer Institute of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daniel G Tenen
- Cancer Science Institute of Singapore, National University of Singapore, Singapore.,Harvard Stem Cell Institute, Boston, MA
| | - Motomi Osato
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan.,Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Toshio Suda
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan .,Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Norio Komatsu
- Department of Hematology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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23
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Yudasaka M, Shimbo D, Maruyama T, Tada N, Itoh A. Synthesis, Characterization, and Reactivity of an Ethynyl Benziodoxolone (EBX)-Acetonitrile Complex. Org Lett 2019; 21:1098-1102. [PMID: 30707031 DOI: 10.1021/acs.orglett.9b00005] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of a crystalline ethynyl-1,2-benziodoxol-3(1 H)-one (EBX)-acetonitrile complex is described. EBX has been widely used as an active species for a variety of reactions; however, its high instability has so far prevented its isolation. The EBX-acetonitrile is self-assembled into a double-layered honeycomb structure through weak hypervalent iodine secondary interactions and hydrogen bonding. The N-ethynylation of a variety of sulfonamides using the EBX-acetonitrile complex as a substrate under mild conditions is also described.
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Affiliation(s)
- Masaharu Yudasaka
- Gifu Pharmaceutical University1-25-4 , Daigaku-nishi , Gifu 501-1196 , Japan
| | - Daisuke Shimbo
- Gifu Pharmaceutical University1-25-4 , Daigaku-nishi , Gifu 501-1196 , Japan
| | - Toshifumi Maruyama
- Department of Chemistry and Biomolecular Science, Faculty of Engineering , Gifu University , Yanagido 1-1 , Gifu 501-1193 , Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University1-25-4 , Daigaku-nishi , Gifu 501-1196 , Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University1-25-4 , Daigaku-nishi , Gifu 501-1196 , Japan
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24
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Nishihara K, Shiga T, Nakamura E, Akiyama T, Sasaki T, Suzuki S, Ko MSH, Tada N, Okano H, Akamatsu W. Induced Pluripotent Stem Cells Reprogrammed with Three Inhibitors Show Accelerated Differentiation Potentials with High Levels of 2-Cell Stage Marker Expression. Stem Cell Reports 2019; 12:305-318. [PMID: 30713040 PMCID: PMC6373546 DOI: 10.1016/j.stemcr.2018.12.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 12/29/2018] [Accepted: 12/30/2018] [Indexed: 02/06/2023] Open
Abstract
Although pluripotent stem cells can generate various types of differentiated cells, it is unclear why lineage-committed stem/progenitor cells derived from pluripotent stem cells are decelerated and why the differentiation-resistant propensity of embryonic stem cell (ESC)/induced pluripotent stem cell (iPSC)-derived cells is predominant compared with the in vivo equivalents derived from embryonic/adult tissues. In this study, we demonstrated that iPSCs reprogrammed and maintained with three chemical inhibitors of the fibroblast growth factor 4-mitogen-activated protein kinase cascade and GSK3β (3i) could be differentiated into all three germ layers more efficiently than the iPSCs reprogrammed without the 3i chemicals, even though they were maintained with 3i chemicals once they were reprogrammed. Although the iPSCs reprogrammed with 3i had increased numbers of Zscan4-positive cells, the Zscan4-positive cells among iPSCs that were reprogrammed without 3i did not have an accelerated differentiation ability. These observations suggest that 3i exposure during the reprogramming period determines the accelerated differentiation/maturation potentials of iPSCs that are stably maintained at the distinct state.
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Affiliation(s)
- Koji Nishihara
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Takahiro Shiga
- Center for Genomic and Regenerative Medicine, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Eri Nakamura
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Tomohiko Akiyama
- Department of Systems Medicine, Sakaguchi Laboratory, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Takashi Sasaki
- Center for Supercentenarian Medical Research, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Sadafumi Suzuki
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Minoru S H Ko
- Department of Systems Medicine, Sakaguchi Laboratory, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Norihiro Tada
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
| | - Wado Akamatsu
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Center for Genomic and Regenerative Medicine, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
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25
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Lin Q, Ohtsuji M, Amano H, Tsurui H, Tada N, Sato R, Fukuyama H, Nishimura H, Verbeek JS, Hirose S. FcγRIIb on B Cells and Myeloid Cells Modulates B Cell Activation and Autoantibody Responses via Different but Synergistic Pathways in Lupus-Prone Yaa Mice. J Immunol 2018; 201:3199-3210. [PMID: 30373853 DOI: 10.4049/jimmunol.1701487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 09/22/2018] [Indexed: 11/19/2022]
Abstract
C57BL/6 (B6).FcγRIIb-/- Yaa mice spontaneously develop lethal lupus nephritis. To define the cell type-specific role of FcγRIIb in Yaa-associated lupus, we established B cell- (CD19Cre Yaa), myeloid cell- (C/EBPαCre Yaa), and dendritic cell- (DC) (CD11cCre Yaa) specific FcγRIIb-deficient B6.Yaa mouse strains. CD19Cre Yaa mice developed milder lupus than B6.FcγRIIb-/- Yaa mice, indicating that FcγRIIb deficiency on B cells is not sufficient for the development of severe disease. Surprisingly, C/EBPαCre Yaa mice also showed autoantibody production and mild lupus similar to that in CD19Cre Yaa mice, whereas CD11cCre Yaa mice stayed disease free. These observations indicate that FcγRIIb deficiency in B cells and myeloid cells, but not DCs, contributes to the severe disease in B6.FcγRIIb-/- Yaa mice. Flow cytometric analysis showed that the frequency of peripheral Gr-1- but not Gr-1+ monocyte was increased in B6.FcγRIIb-/- Yaa and C/EBPαCre Yaa but not CD19Cre Yaa mice, suggesting a link between FcγRIIb deficiency on myeloid cells and the high frequency of Gr-1- monocytes. RNA sequencing revealed that compared with Gr-1+ monocytes, Gr-1- monocytes expressed higher levels of the B cell-stimulating cytokines BSF-3, IL-10, and IL-1β, the DC markers CD11c, CD83, and Adamdec1, and the antiapoptotic factors Bcl2 and Bcl6. In conclusion, in Yaa-associated lupus nephritis, FcγRIIb on B cells and myeloid cells modulates B cell activation via different but synergistic pathways. Gr-1- monocytes are the most likely candidate myeloid cells involved.
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Affiliation(s)
- Qingshun Lin
- Department of Pathology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Mareki Ohtsuji
- Toin Human Science and Technology Center, Department of Biomedical Engineering, Toin University of Yokohama, Yokohama 225-8502, Japan
| | - Hirofumi Amano
- Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Hiromichi Tsurui
- Department of Pathology, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Norihiro Tada
- Atopy Research Center, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Ryota Sato
- Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan; and
| | - Hidehiro Fukuyama
- Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences, Yokohama 230-0045, Japan; and
| | - Hiroyuki Nishimura
- Toin Human Science and Technology Center, Department of Biomedical Engineering, Toin University of Yokohama, Yokohama 225-8502, Japan
| | - J Sjef Verbeek
- Department of Human Genetics, Leiden University Medical Center, 2333ZA Leiden, the Netherlands
| | - Sachiko Hirose
- Department of Pathology, Juntendo University School of Medicine, Tokyo 113-8421, Japan;
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26
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Usami K, Yamaguchi E, Tada N, Itoh A. Visible-Light-Mediated Iminyl Radical Generation from Benzyl Oxime Ether: Synthesis of Pyrroline via Hydroimination Cyclization. Org Lett 2018; 20:5714-5717. [DOI: 10.1021/acs.orglett.8b02429] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kaoru Usami
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
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27
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Fujiya A, Yamaguchi E, Tada N, Itoh A. A Radical Reaction for the Synthesis of 3-Substituted Dihydrothiopyrans under Photosensitized Conditions. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Akitoshi Fujiya
- Graduate School of Pharmaceutical Science; Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Eiji Yamaguchi
- Graduate School of Pharmaceutical Science; Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Norihiro Tada
- Graduate School of Pharmaceutical Science; Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Akichika Itoh
- Graduate School of Pharmaceutical Science; Gifu Pharmaceutical University; 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
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28
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Deguchi M, Fujiya A, Yamaguchi E, Tada N, Uno B, Itoh A. Organic dye-catalyzed radical ring expansion reaction. RSC Adv 2018; 8:15825-15830. [PMID: 35539500 PMCID: PMC9080073 DOI: 10.1039/c8ra02383b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 04/23/2018] [Indexed: 12/03/2022] Open
Abstract
Herein, we reported an attractive method for synthesizing medium-sized rings that are catalyzed by erythrosine B under fluorescent light irradiation. This synthetic approach featured mild conditions, a facile procedure, a broad substrate scope, and moderate-to-good yields. Herein, we reported an attractive method for synthesizing medium-sized rings that are catalyzed by erythrosine B under fluorescent light irradiation.![]()
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Affiliation(s)
- Masato Deguchi
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Akitoshi Fujiya
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Bunji Uno
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
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29
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Yudasaka M, Maruyama T, Yamaguchi E, Tada N, Itoh A. Synthesis, Characterization, and Reaction of a Both Inter- and Intramolecularly Coordinated Pseudocyclic Iodosylbenzene-Trifluoroacetic Acid Complexes. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701521] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Masaharu Yudasaka
- Gifu Pharmaceutical University 1-25-4; Daigaku-nishi 501-1196 Gifu Japan
| | - Toshifumi Maruyama
- Department of Chemistry and Biomolecular Science; Faculty of Engineering; Gifu University; Yanagido 501-1193 Gifu Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University 1-25-4; Daigaku-nishi 501-1196 Gifu Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University 1-25-4; Daigaku-nishi 501-1196 Gifu Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University 1-25-4; Daigaku-nishi 501-1196 Gifu Japan
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30
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Kawaai K, Yamaguchi T, Yamaguchi E, Endo S, Tada N, Ikari A, Itoh A. Photoinduced Generation of Acyl Radicals from Simple Aldehydes, Access to 3-Acyl-4-arylcoumarin Derivatives, and Evaluation of Their Antiandrogenic Activities. J Org Chem 2018; 83:1988-1996. [DOI: 10.1021/acs.joc.7b02933] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Kazuki Kawaai
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Tomoaki Yamaguchi
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Eiji Yamaguchi
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Satoshi Endo
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Norihiro Tada
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akira Ikari
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Laboratory
of Pharmaceutical Synthetic Chemistry and ‡Laboratory of Biochemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
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31
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Akiba C, Nakajima M, Miyajima M, Ogino I, Miura M, Inoue R, Nakamura E, Kanai F, Tada N, Kunichika M, Yoshida M, Nishimura K, Kondo A, Sugano H, Arai H. Leucine-rich α2-glycoprotein overexpression in the brain contributes to memory impairment. Neurobiol Aging 2017; 60:11-19. [PMID: 28917663 DOI: 10.1016/j.neurobiolaging.2017.08.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/28/2017] [Accepted: 08/15/2017] [Indexed: 12/19/2022]
Abstract
We previously reported increase in leucine-rich α2-glycoprotein (LRG) concentration in cerebrospinal fluid is associated with cognitive decline in humans. To investigate relationship between LRG expression in the brain and memory impairment, we analyzed transgenic mice overexpressing LRG in the brain (LRG-Tg) focusing on hippocampus. Immunostaining and Western blotting revealed age-related increase in LRG expression in hippocampal neurons in 8-, 24-, and 48-week-old controls and LRG-Tg. Y-maze and Morris water maze tests indicated retained spatial memory in 8- and 24-week-old LRG-Tg, while deteriorated in 48-week-old LRG-Tg compared with age-matched controls. Field excitatory postsynaptic potentials declined with age in LRG-Tg compared with controls at 8, 24, and 48 weeks. Paired-pulse ratio decreased with age in LRG-Tg, while increased in controls. As a result, long-term potentiation was retained in 8- and 24-week-old LRG-Tg, whereas diminished in 48-week-old LRG-Tg compared with age-matched controls. Electron microscopy observations revealed fewer synaptic vesicles and junctions in LRG-Tg compared with age-matched controls, which became significant with age. Hippocampal LRG overexpression contributes to synaptic dysfunction, which leads to memory impairment with advance of age.
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Affiliation(s)
- Chihiro Akiba
- Department of Neurosurgery, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Madoka Nakajima
- Department of Neurosurgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Masakazu Miyajima
- Department of Neurosurgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ikuko Ogino
- Department of Neurosurgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Masami Miura
- Neurophysiology Research Group, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Ritsuko Inoue
- Neurophysiology Research Group, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Eri Nakamura
- Laboratory of Disease Model Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Fumio Kanai
- Laboratory of Disease Model Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Norihiro Tada
- Laboratory of Disease Model Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Miyuki Kunichika
- Laboratory of Morpheme Analysis Imaging Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Mitsutaka Yoshida
- Laboratory of Morpheme Analysis Imaging Research, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kinya Nishimura
- Neurophysiology Research Group, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan; Department of Anesthesiology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihide Kondo
- Department of Neurosurgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hidenori Sugano
- Department of Neurosurgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hajime Arai
- Department of Neurosurgery, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Horie K, Tada N, Isawa T, Matsumoto T, Honda T, Otomo T, Inoue N. P4671Transradial diagnostic and therapeutic coronary catheterization of patients with non-st-segment elevation ACS using one sheath and one sheathless guide catheter via one puncture site: the 1-1-1 strate. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Horie K, Tada N, Isawa T, Matsumoto T, Honda T, Otomo T, Inoue N. P3311A randomized comparison of frequency of radial artery occlusion and radial artery spasm associated with TRI Using 6.5-Fr Sheathless Guide Catheter vs. 6.0-Fr Glidesheath Slender. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Brand M, Stefanidis A, Morbach C, Fan YT, Elremisy DRA, Kuznetsov VA, Carrero C, Almodares Q, Abdulrahim H, Galli E, Galli E, Moreno J, Lerena Saenz P, Ikonomidis I, Galuszka OM, Bonapace S, Clerc OF, Kuznetsov VA, Tadic S, Kataoka A, Abdul Rahman E, Calin A, Antonini-Canterin F, Schwartzenberg SS, Christ M, Roeing J, Amirie S, Grett M, Beko M, Breker I, Wennemann R, Trappe HJ, Lagoudakou S, Vintzilaios K, Mokadem N, Vlachou J, Komatanou E, Korlou P, Kakkavas A, Komninos K, Kranidis A, Gelbrich G, Simon J, Cramer M, Knobeloch F, Tiffe T, Wagner M, Heuschmann PU, Stoerk S, Yang D, Wang X, Chan AK, Cheung SH, Lee AP, Salim FF, Bakhoum SW, Ashour ZA, Soldatova AM, Krinochkin DV, Enina TN, Altamirano C, Pipkin M, Constantin I, Fava A, Diaz Babio G, Masson Juarez G, San Miguel J, Vera Janavel G, Stutzbach P, Wallentin Guron C, Thurin A, Fu M, Kontogeorgos S, Thunstrom E, Johansson MC, Da Silva C, Venkateshvaran A, Nagy AI, Lund LH, Manouras A, Leclercq C, Fournet M, Bernard A, Mabo P, Samset E, Hernandez A, Donal E, Leclercq C, Fournet M, Bernard A, Mabo P, Samset E, Hernandez A, Donal E, Martinez Lugo CML, Zuniga Sedano JZD, Alexanderson EAR, Camilletti JC, Ahmed Abdelrahman M, Raslan H, Ruisanchez Villar C, Cuesta Cosgalla JM, Zarauza Navarro J, Veiga Fernandez G, Rifaie O, Omar AMS, Vlastos D, Frogoudaki A, Vrettou AR, Vlachos S, Varoudi M, Triantafyllidi H, Parissis J, Tsivgoulis G, Lekakis J, Steffens D, Friebel J, Rauch-Krohnert U, Landmesser U, Kasner M, Adamo E, Valbusa F, Ciccio' C, Rossi A, Lanzoni L, Chiampan A, Cecchetto A, Canali G, Barbieri E, Fuchs TA, Stehli J, Benz DC, Graeni C, Buechel RR, Kaufmann PA, Gaemperli O, Yaroslavskaya EI, Krinochkin DV, Kolunin GV, Gorbatenko EA, Dyachkov SM, Jung R, Ilic A, Stojsic-Milosavljevic A, Dejanovic J, Stefanovic M, Stojsic S, Sladojevic M, Watanabe Y, Kozuma K, Yamamoto M, Takagi K, Araki M, Tada N, Shirai S, Tamanaka F, Hayashida K, Ewe SH, Fadzil MA, Najme Khir R, Ismail JR, Lim CW, Chua N, Ibrahim ZO, Kasim SS, Ding ZP, Mateescu AD, Beladan CC, Rosca M, Enache R, Calin C, Cosei I, Botezatu S, Simion M, Ginghina C, Popescu BA, Di Nora C, Poli S, Vriz O, Zito C, Carerj S, Pavan D, Vaturi M, Kazum S, Monakier D, Sagie A, Kornowski R, Shapira Y. Poster Session 2The imaging examination and quality assessmentP520Benefit of early basic transthoracic echocardiography (TTE) in emergency patients performed by physicians with low to intermediate TTE experienceP521Appropriateness criteria in echocardiography. A contemporary necessity in clinical practiceP522Interobserver variability in 2d transthoracic echocardiography impact of scanning and reading on total variability results from the STAAB cohort study quality controlP5233D printing for personalised planning of catheter-based left atrial appendage occlusionP524Central obesity: an independent role or synergistic effect to metabolic syndrome on right atrial structure?P525Dynamics of left ventricular volumes and mortality in patients with early and late effect of cardiac resynchronization therapyP526Variability of thoracic aortic diameters according to gender, age and body surface area. Time to forget absolute cut-off values?P527The association of left ventricular outflow tract velocity time integral to all-cause mortality in elderly patients with heart failureP528Left ventricular myocardial performance and atrioventricular coupling in patients with primary arterial hypertensionP529Interest of a combinatory approach based on traditional left ventricular dyssynchrony parameters and cardiac work estimated by pressure-strain loop curves for the prediction of cardiac resynchronizatP530The evaluation of cardiac performance by pressure-strain loops: a useful tool for the identification of cardiac resynchronization therapy respondersP531Left ventricle cardiac function by 2D-speckle tracking echocardiography in diabetes mellitus population: sub-clinical systolic disfunction studyP532Biphasic tissue doppler mitral annular isovolumic contraction velocities are associated with left ventricular function, isovolumic relaxation, and pulmonary wedge pressure in heart failure patientsP533Abnormal left atrial volumes and strains are associated with increased arterial stiffnes in patients with cryptogenic stroke: a novel pathophysiological pathP534Detection of coronary microvascular disease using two-dimensional speckle-tracking echocardiographyP535Predictive value of a bi-dimensional transthoracic echocardiographic sign of " binary image" to identify the anomalous origin of the left circumflex coronary artery from the right coronary sinusP536Systematic review and meta-analysis of screening for coronary artery disease in asymptomatic diabetic patientsP537Noninvasive screening test for diagnosis of nonobstructive coronary artery disease using echocardiographic criteriaP538Early echocardiography after primary angioplasty, important role in predicting left ventricular remodelingP539Prognostic impact of low-flow severe aortic stenosis in Japanese patients undergoing transcatheter aortic valve implantation: the ocean-tavi registryP540Left ventricular outflow tract geometry and its impact on aortic valve area calculations in aortic stenosis using 3D transoesophageal echocardiography and 2D transthoracic echocardiographyP541Impaired left atrial myocardial deformation predicts postoperative atrial fibrillation after aortic valve replacement in patients with aortic stenosisP542Ejection fraction-velocity ratio in predicting symptoms in severe aortic stenosisP543Incremental value of transesophageal echocardiography in conjunction with transthoracic echocardiography in the assessment of aortic stenosis severity. Eur Heart J Cardiovasc Imaging 2016. [DOI: 10.1093/ehjci/jew248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Yamaguchi T, Sugiura Y, Yamaguchi E, Tada N, Itoh A. Synthetic Method for the Preparation of Quinazolines by the Oxidation of Amines Using Singlet Oxygen. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600431] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Tomoaki Yamaguchi
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Yukina Sugiura
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Eiji Yamaguchi
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Norihiro Tada
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
| | - Akichika Itoh
- Laboratory of Pharmaceutical Synthetic ChemistryGifu Pharmaceutical University 1-25-4, Daigaku-nishi Gifu 501-1196 Japan
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Yamaguchi E, Sudo Y, Tada N, Itoh A. Rare Metal-Free Photo-Aerobic Intramolecular Dehydrogenative Cyclization Reaction towards Polycyclic Heteroarenes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600291] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Eiji Yamaguchi
- Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Yusuke Sudo
- Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
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Itoh A, Omura R, Fujiya A, Yamaguchi E, Tada N, Miura T. One-Pot Aerobic Photooxidative Darzens Reaction from Styrene and Benzyl Alcohol via Phenacyl Iodide and Benzaldehyde by Using Iodine. SYNTHESIS-STUTTGART 2016. [DOI: 10.1055/s-0035-1562455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Tada N, Kanai F, Nakamura E, Lu H, Sato M. Syngenic grafting of a whole juvenile male gonadal tissue into the adult testes confers successful spermatogenesis in mice. Asian Pacific Journal of Reproduction 2016. [DOI: 10.1016/j.apjr.2016.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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39
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Tada N, Jansen D, Mower MP, Blewett MM, Umotoy JC, Cravatt B, Wolan DW, Shenvi RA. Synthesis and Sulfur Electrophilicity of the Nuphar Thiaspirane Pharmacophore. ACS Cent Sci 2016; 2:401-408. [PMID: 27413784 PMCID: PMC4919772 DOI: 10.1021/acscentsci.6b00113] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Indexed: 06/06/2023]
Abstract
We describe a general method to synthesize the iminium tetrahydrothiophene embedded in the dimeric Nuphar alkaloids. In contrast to prior studies, the sulfur atom of the thiaspirane pharmacophore is shown to be electrophilic. This α-thioether reacts with thiophenol or glutathione at ambient temperature to cleave the C-S bond and form a disulfide. Rates of conversion are proportional to the corresponding ammonium ion pK a and exhibit half-lives less than 5 h at a 5 mM concentration of thiol. A simple thiophane analogue of the Nuphar dimers causes apoptosis at single-digit micromolar concentration and labels reactive cysteines at similar levels as the unsaturated iminium "warhead". Our experiments combined with prior observations suggest the sulfur of the Nuphar dimers can react as an electrophile in cellular environments and that sulfur-triggered retrodimerization can occur in the cell.
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Fujiya A, Tanaka M, Yamaguchi E, Tada N, Itoh A. Sequential Photo-oxidative [3 + 2] Cycloaddition/Oxidative Aromatization Reactions for the Synthesis of Pyrrolo[2,1-a]isoquinolines Using Molecular Oxygen as the Terminal Oxidant. J Org Chem 2016; 81:7262-70. [DOI: 10.1021/acs.joc.6b00439] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akitoshi Fujiya
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Masanori Tanaka
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
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Miyamoto K, Iwasaki S, Doi R, Ota T, Kawano Y, Yamashita J, Sakai Y, Tada N, Ochiai M, Hayashi S, Nakanishi W, Uchiyama M. Mechanistic Studies on the Generation and Properties of Superelectrophilic Singlet Carbenes from Bis(perfluoroalkanesulfonyl)bromonium Ylides. J Org Chem 2016; 81:3188-98. [DOI: 10.1021/acs.joc.6b00142] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazunori Miyamoto
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo
Bunkyo-ku, Tokyo 113-0033, Japan
| | - Susumu Iwasaki
- Graduate
School of Pharmaceutical Sciences, The University of Tokushima, 30-8 Shomachi, Tokushima 770-8505, Japan
| | - Ryusuke Doi
- Graduate
School of Pharmaceutical Sciences, The University of Tokushima, 30-8 Shomachi, Tokushima 770-8505, Japan
| | - Taiga Ota
- Graduate
School of Pharmaceutical Sciences, The University of Tokushima, 30-8 Shomachi, Tokushima 770-8505, Japan
| | - Yufuko Kawano
- Graduate
School of Pharmaceutical Sciences, The University of Tokushima, 30-8 Shomachi, Tokushima 770-8505, Japan
| | - Junpei Yamashita
- Graduate
School of Pharmaceutical Sciences, The University of Tokushima, 30-8 Shomachi, Tokushima 770-8505, Japan
| | - Yuuta Sakai
- Graduate
School of Pharmaceutical Sciences, The University of Tokushima, 30-8 Shomachi, Tokushima 770-8505, Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Masahito Ochiai
- Graduate
School of Pharmaceutical Sciences, The University of Tokushima, 30-8 Shomachi, Tokushima 770-8505, Japan
| | - Satoko Hayashi
- Department
of Materials Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan
| | - Waro Nakanishi
- Department
of Materials Science and Chemistry, Faculty of Systems Engineering, Wakayama University, 930 Sakaedani, Wakayama 640-8510, Japan
| | - Masanobu Uchiyama
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo
Bunkyo-ku, Tokyo 113-0033, Japan
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Yamamoto-Nonaka K, Koike M, Asanuma K, Takagi M, Oliva Trejo JA, Seki T, Hidaka T, Ichimura K, Sakai T, Tada N, Ueno T, Uchiyama Y, Tomino Y. Cathepsin D in Podocytes Is Important in the Pathogenesis of Proteinuria and CKD. J Am Soc Nephrol 2016; 27:2685-700. [PMID: 26823550 DOI: 10.1681/asn.2015040366] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 11/30/2015] [Indexed: 12/24/2022] Open
Abstract
Studies have revealed many analogies between podocytes and neurons, and these analogies may be key to elucidating the pathogenesis of podocyte injury. Cathepsin D (CD) is a representative aspartic proteinase in lysosomes. Central nervous system neurons in CD-deficient mice exhibit a form of lysosomal storage disease with a phenotype resembling neuronal ceroid lipofuscinoses. In the kidney, the role of CD in podocytes has not been fully explored. Herein, we generated podocyte-specific CD-knockout mice that developed proteinuria at 5 months of age and ESRD by 20-22 months of age. Immunohistochemical analysis of these mice showed apoptotic podocyte death followed by proteinuria and glomerulosclerosis with aging. Using electron microscopy, we identified, in podocytes, granular osmiophilic deposits (GRODs), autophagosome/autolysosome-like bodies, and fingerprint profiles, typical hallmarks of CD-deficient neurons. CD deficiency in podocytes also led to the cessation of autolysosomal degradation and accumulation of proteins indicative of autophagy impairment and the mitochondrial ATP synthase subunit c accumulation in the GRODs, again similar to changes reported in CD-deficient neurons. Furthermore, both podocin and nephrin, two essential components of the slit diaphragm, translocated to Rab7- and lysosome-associated membrane glycoprotein 1-positive amphisomes/autolysosomes that accumulated in podocyte cell bodies in podocyte-specific CD-knockout mice. We hypothesize that defective lysosomal activity resulting in foot process effacement caused this accumulation of podocin and nephrin. Overall, our results suggest that loss of CD in podocytes causes autophagy impairment, triggering the accumulation of toxic subunit c-positive lipofuscins as well as slit diaphragm proteins followed by apoptotic cell death.
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Affiliation(s)
- Kanae Yamamoto-Nonaka
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | | | - Katsuhiko Asanuma
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan; TMK Project, Medical Innovation Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Miyuki Takagi
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | | | - Takuto Seki
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Teruo Hidaka
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | | | | | - Norihiro Tada
- Division of Genome Research, Research Institute for Diseases of Old Ages
| | - Takashi Ueno
- Laboratory of Proteomics and Biomolecular Science, Research Support Center
| | - Yasuo Uchiyama
- Department of Cellular and Molecular Neuropathology, Juntendo University Graduate School of Medicine, Tokyo, Japan; and
| | - Yasuhiko Tomino
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan;
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Nagasawa Y, Tachikawa Y, Yamaguchi E, Tada N, Miura T, Itoh A. Catalytic Aerobic Photo‐oxidation of a Methyl Group on a Heterocycle to Produce an Aldehyde
via
Homolytic CI Bond Cleavage caused by Irradiation with Visible Light. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500811] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Y. Nagasawa
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - Y. Tachikawa
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - E. Yamaguchi
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - N. Tada
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
| | - T. Miura
- Tokyo University of Pharmacy and Life Sciences, 1432‐1 Horinouchi, Hachioji, Tokyo 192‐0392, Japan, Fax: (+81)‐042‐676‐4469; phone: (+81)‐042‐676‐4469
| | - A. Itoh
- Gifu Pharmaceutical University 1‐25‐4, Daigaku‐nishi, Gifu 501‐1196, Japan, Fax: (+81)‐058‐230‐8108; phone: (+81)‐058‐230‐8100
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Yamaguchi T, Sakairi K, Yamaguchi E, Tada N, Itoh A. Magnesium iodide-catalyzed synthesis of 2-substituted quinazolines using molecular oxygen and visible light. RSC Adv 2016. [DOI: 10.1039/c6ra04073j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
We disclose a novel and efficient synthesis of 2-substituted quinazolines by aerobic photooxidative reaction catalyzed by magnesium iodide.
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Affiliation(s)
- T. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - K. Sakairi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - E. Yamaguchi
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - N. Tada
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
| | - A. Itoh
- Gifu Pharmaceutical University
- Gifu 501-1196
- Japan
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Okada A, Nagasawa Y, Yamaguchi T, Yamaguchi E, Tada N, Miura T, Itoh A. Synthesis of 2-hydroxymalonic acid derivatives via tandem oxidation and rearrangement by photo organic catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra07084a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This report describes a mild method for the direct transformation of β-oxoesters to the corresponding tartronic esters using singlet oxygen produced by a catalytic amount of methylene blue and visible light irradiation using fluorescent lamps.
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Affiliation(s)
- Akifumi Okada
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | | | | | | | - Norihiro Tada
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
| | - Tsuyoshi Miura
- Tokyo University of Pharmacy and Life Sciences
- Tokyo 192-0392
- Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University 1-25-4
- Gifu 501-1196
- Japan
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Usami K, Nagasawa Y, Yamaguchi E, Tada N, Itoh A. Intermolecular Cyclopropanation of Styrenes Using Iodine and Visible Light via Carbon–Iodine Bond Cleavage. Org Lett 2015; 18:8-11. [DOI: 10.1021/acs.orglett.5b02957] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kaoru Usami
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Yoshitomo Nagasawa
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
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Kawano H, Ito Y, Kanai F, Nakamura E, Tada N, Takai S, Horie S, Kobayashi T, Hino O. Aberrant differentiation of Tsc2-deficient teratomas associated with activation of the mTORC1-TFE3 pathway. Oncol Rep 2015; 34:2251-8. [PMID: 26352760 PMCID: PMC4583534 DOI: 10.3892/or.2015.4254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 07/21/2015] [Indexed: 12/17/2022] Open
Abstract
The model animal of renal cell carcinoma (RCC), the Eker rat, has a germline mutation in the tuberous sclerosis 2 (Tsc2) gene. Heterozygous mutants develop RCCs by second hit in the wild-type Tsc2 allele, whereas homozygous mutants are embryonic lethal. In the present study, a new cell differentiation model was developed to study the mechanism of Tsc2 mutation-associated pathogenesis by generating Tsc2-deficient embryonic stem cells (ESCs) from Eker rats. Tsc2+/+, Tsc2+/− and Tsc2−/− ESCs were all capable of generating three germ layers: mesoderm, ectoderm, and endoderm. Interestingly, epithelial tumor-like abnormal ductal structures were reproducibly observed in Tsc2−/− teratomas from different ESC lines. Immunohistochemical analysis revealed that mammalian target of rapamycin complex 1 (mTORC1) signaling was activated in abnormal ducts of Tsc2−/− teratomas, on the basis of positive staining for p-S6 and p-4EBP1. In these abnormal ducts, expression levels of epithelial markers (i.e., megalin and cubilin) and the cytoplasmic localization of E-cadherin and β-catenin were similar to those in Eker rat RCCs. Moreover, a transcription factor regulated by mTORC1, named TFE3, was located in the nuclei of abnormal ducts and Eker rat RCCs. As a negative regulator of ESC differentiation, TFE3 may result in tissue-specific differentiation defects related to tumorigenesis in Eker rats and Tsc2−/− teratomas. The present study suggests that ESCs derived from Eker rats constitute a novel experimental tool with which to analyze differentiation defects and cell-type specific pathogenesis associated with Tsc2 deficiency.
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Affiliation(s)
- Haruna Kawano
- Department of Urology, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Yoshitaka Ito
- Department of Molecular Pathogenesis, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Fumio Kanai
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Eri Nakamura
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Norihiro Tada
- Laboratory of Genome Research, Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Setsuo Takai
- Department of Clinical Radiology, Faculty of Health Sciences, Hiroshima International University, Hiroshima 724-0695, Japan
| | - Shigeo Horie
- Department of Urology, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Toshiyuki Kobayashi
- Department of Molecular Pathogenesis, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
| | - Okio Hino
- Department of Molecular Pathogenesis, Juntendo University Graduate School of Medicine, Tokyo 113-8431, Japan
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Liu C, Kanamaru Y, Watanabe T, Tada N, Horikoshi S, Suzuki Y, Liu Z, Tomino Y. Targeted IgA Fc receptor I (FcαRI) therapy in the early intervention and treatment of pristane-induced lupus nephritis in mice. Clin Exp Immunol 2015; 181:407-16. [PMID: 25907714 DOI: 10.1111/cei.12647] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2015] [Indexed: 11/24/2022] Open
Abstract
The Fc receptor I for IgA (FcαRI) down-regulates humoral immune responses and modulates the risk of autoimmunity. This study aimed to investigate whether FcαRI targeting can affect progression of pristine-induced lupus nephritis. In the first experiment (early intervention), four groups of animals were evaluated: untreated FcαRI/FcRγ transgenic (Tg) mice and Tg mice administered control antibody (Ctr Fab), saline and anti-FcαRI Fab [macrophage inflammatory protein (MIP)-8a], respectively, three times a week for 29 weeks, after being injected once intraperitoneally with 0·5 ml pristane. In the second experiment, antibody injection started after the onset of nephritis and was carried out for 2 months, with similar groups as described above. MIP-8a improved proteinuria, decreased the amounts of glomerular injury markers, serum interleukin (IL)-6, IL-1 and monocyte chemoattractant protein (MCP)-1, and F4/80 macrophages in the interstitium and glomeruli, in both experiments. When MIP-8a was used as early intervention, a decrease in mouse serum anti-nuclear antibody (ANA) titres and reduced deposition of immunoglobulins in glomeruli were observed. This effect was associated with reduced serum titres of immunoglobulin (Ig)G2a but not IgG1, IgG2b and IgG3. Furthermore, pathological analysis showed lower glomerular activity index and less fibronectin in MIP-8a treated mice. This study suggests that FcαRI targeting could halt disease progression and lupus activation by selective inhibition of cytokine production, leucocyte recruitment and renal inflammation. Our findings provide a basis for the use of FcαRI as a molecular target for the treatment of lupus.
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Affiliation(s)
- C Liu
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.,National Clinical Research Center of Kidney Disease, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Y Kanamaru
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - T Watanabe
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - N Tada
- Research Institute for Diseases of Old Age, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - S Horikoshi
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Y Suzuki
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Z Liu
- National Clinical Research Center of Kidney Disease, Jinling Hospital, Nanjing University School of Medicine, Nanjing, China
| | - Y Tomino
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
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Itoh A, Okada A, Yuasa H, Fujiya A, Tada N, Miura T. Aerobic Photooxidative Synthesis of Secondary Aldimines from Benzylamines by Using Methylene Blue. Synlett 2015. [DOI: 10.1055/s-0034-1379923] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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