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Jingami N, Uemura K, Asada M, Kuzuya A, Takahashi R, Kinoshita A. Two‐point dynamic observation of Alzheimer’s disease cerebrospinal fluid biomarkers in idiopathic normal pressure hydrocephalus. Alzheimers Dement 2020. [DOI: 10.1002/alz.047148] [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: 11/10/2022]
Affiliation(s)
- Naoto Jingami
- Kyoto University Graduate School of Medicine Kyoto Japan
| | - Kengo Uemura
- Kyoto University Graduate School of Medicine Kyoto Japan
| | - Megumi Asada
- Kyoto University Graduate School of Medicine Kyoto Japan
| | - Akira Kuzuya
- Kyoto University Graduate School of Medicine Kyoto Japan
| | | | - Ayae Kinoshita
- Kyoto University Graduate School of Medicine Kyoto Japan
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2
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Shirado K, Wakabayashi H, Maeda K, Nishiyama A, Asada M, Isse H, Saito S, Kakitani C, Momosaki R. Impact of Energy intake at One Week after Hospitalization on Prognosis for Older Adults with Pneumonia. J Nutr Health Aging 2020; 24:119-124. [PMID: 31886818 DOI: 10.1007/s12603-019-1282-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVES This study objectives to investigate the influence of average energy intake at 1 week of hospitalization on prognosis for older adults with pneumonia. DESIGN Retrospective observational cohort study. SETTING The Japan Rehabilitation Nutrition Database comprise those with pneumonia in acute care hospitals. PARTICIPANTS The study included 329 pneumonia patients (aged over 65 years) who entered into the Japan Rehabilitation Nutrition Database (JRND) from November 2015 to March 2018. MEASUREMENTS Logistic regression analysis was performed to confirm the relationship of energy intake with the rate of mortality, discharge home, and pneumonia recurrence during hospitalization. Variables included in the multiple regression analysis model were age, sex, Mini Nutritional Assessment-Short Form score (MNA-SF) at hospitalization, A-DROP, Charlson comorbidity index (CCI), and presence or absence of rehabilitation. RESULTS Of 315 patients with pneumonia (median age 85 years), 63.8% were men. 57.7% were assigned to the lack of energy intake (LEI) at 1 week after admission. Patients in the LEI group were older (p = 0.033), had higher A-DROP score (p < 0.001), and showed higher malnutrition rate in MNA-SF at hospitalization (p < 0.001) than those in the control group. Mortality, pneumonia recurrence (p = 0.001), median body mass index (p = 0.012), and low malnutrition in MNA-SF (p < 0.001) at discharge were significantly higher in the LEI group than in the control group. Logistic regression analysis showed that LEI was an independent risk factor for mortality (Odds ratio: 5.07, p = 0.002), discharge home (Odds ratio: 0.33, p = 0.007), and pneumonia recurrence (Odds ratio: 3.26, p = 0.007). CONCLUSIONS LEI at 1 week after hospitalization in older adults with pneumonia was an independent risk factor for mortality, difficult at-home recovery, and pneumonia recurrence. These findings suggest the importance of adequate energy intake from the early days of hospitalization.
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Affiliation(s)
- K Shirado
- Kengo Shirado, R.P.T. Department of Rehabilitation, Aso Iizuka Hospital, 3-83 Yoshiomachi, Iizuka, Fukuoka 820-8505, Japan; Tel: +81-948-29-8038; Fax: +81-948-25-8018,
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Yoshida H, Asada M, Marusawa H. Gastrointestinal: Glomus tumor: A rare submucosal tumor of the stomach. J Gastroenterol Hepatol 2019; 34:815. [PMID: 30665269 DOI: 10.1111/jgh.14594] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/28/2018] [Indexed: 12/16/2022]
Affiliation(s)
- H Yoshida
- Department of Gastroenterology and Hepatology, Japanese Red Cross Osaka Hospital, Osaka, Japan.,Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - M Asada
- Department of Gastroenterology and Hepatology, Japanese Red Cross Osaka Hospital, Osaka, Japan
| | - H Marusawa
- Department of Gastroenterology and Hepatology, Japanese Red Cross Osaka Hospital, Osaka, Japan
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Jingami N, Uemura K, Asada M, Kuzuya A, Yamada S, Ishikawa M, Kawahara T, Iwasaki T, Atuchi M, Takahashi R, Kinoshita A. Predicting dynamics of cerebrospinal fluid biomarkers by tap test in idiopathic normal pressure hydrocephalus. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Eguchi H, Maeda A, Lo PC, Matsuura R, Esquivel EL, Asada M, Sakai R, Nakahata K, Yamamichi T, Umeda S, Deguchi K, Ueno T, Okuyama H, Miyagawa S. HLA-G1, but Not HLA-G3, Suppresses Human Monocyte/Macrophage-mediated Swine Endothelial Cell Lysis. Transplant Proc 2017; 48:1285-7. [PMID: 27320605 DOI: 10.1016/j.transproceed.2015.10.070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/03/2015] [Indexed: 11/16/2022]
Abstract
The inhibitory function of HLA-G1, a class Ib molecule, on monocyte/macrophage-mediated cytotoxicity was examined. The expression of inhibitory receptors that interact with HLA-G, immunoglobulin-like transcript 2 (ILT2), ILT4, and KIR2DL4 (CD158d) on in vitro-generated macrophages obtained from peripheral blood mononuclear cells and the phorbol 12-myristate 13-acetate (PMA)-activated THP-1 cells were examined by flow cytometry. cDNAs of HLA-G1, HLA-G3, HLA-E, and human β2-microglobulin were prepared, transfected into pig endothelial cells (PECs), and macrophage- and the THP-1 cell-mediated PEC cytolysis was then assessed. In vitro-generated macrophages expressed not only ILT2 and ILT4 but CD158d as well. The transgenic HLA-G1 on PEC indicated a significant suppression in macrophage-mediated cytotoxicity, which was equivalent to that of transgenic HLA-E. HLA-G1 was clearly expressed on the cell surface of PEC, whereas the levels of HLA-G3 were much lower and remained in the intracellular space. On the other hand, the PMA-activated THP-1 cell was less expressed these inhibitory molecules than in vitro-generated macrophages. Therefore, the HLA-G1 on PECs showed a significant but relatively smaller suppression to THP-1 cell-mediated cytotoxicity compared to in vitro-generated macrophages. These results indicate that by generating HLA-G1, but not HLA-G3, transgenic pigs can protect porcine grafts from monocyte/macrophage-mediated cytotoxicity.
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Affiliation(s)
- H Eguchi
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - A Maeda
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - P C Lo
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - R Matsuura
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - E L Esquivel
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Asada
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - R Sakai
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - K Nakahata
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Yamamichi
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - S Umeda
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - K Deguchi
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - T Ueno
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - H Okuyama
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - S Miyagawa
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Kishi H, Kunimitsu Y, Nakashima Y, Imade J, Oshita S, Morishita Y, Asada M. Relationship between the mechanical properties of epoxy/PMMA-b-PnBA-b-PMMA block copolymer blends and their three-dimensional nanostructures. EXPRESS POLYM LETT 2017. [DOI: 10.3144/expresspolymlett.2017.74] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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7
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Asada M, Oshita S, Morishita Y, Nakashima Y, Kunimitsu Y, Kishi H. Effect of miscible PMMA chain length on disordered morphologies in epoxy/PMMA-b-PnBA-b-PMMA blends by in situ simultaneous SAXS/DSC. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.10.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sakai R, Esaki Y, Hasuwa H, Ikawa M, Lo P, Matsuura R, Nakahata K, Zenitani M, Asada M, Maeda A, Eguchi H, Okuyama H, Miyagawa S. Knockout of Cytidine Monophospho-N-Acetylneuraminic Acid (CMP-NeuAc) Hydroxylase From Porcine Endothelial Cells by a CRISPR System. Transplant Proc 2016; 48:1320-2. [PMID: 27320613 DOI: 10.1016/j.transproceed.2015.10.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 10/03/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND We attempted to knock out the expression of Hanganutziu-Deicher (H-D) antigens through the use of a CRISPR (clustered regulatory interspaced short palindromic repeat)/Cas9 system for pig cytidine monophospho-N-acetylneuraminic acid hydroxylase (CMAH). METHODS Plasmids expressing hCas9 and sgRNA for pCMAH were prepared by ligating oligos into the BbsI site of pX330. The N-terminal and C-terminal EGFP coding regions overlapping 482 bp were PCR-amplified and placed under a ubiquitous CAG promoter. The approximately 400-bp genomic fragments containing the sgRNA target sequence of pCMAH were placed into the multi-cloning sites flanked by the EGFP fragments. The pCAG-EGxxFP-target was mixed with pX330 with/without the sgRNA sequences and then introduced into HEK293T cells. RESULTS Four oligos and primers, gSO1, gSO3, gSO4, and gSO8, were nominated from 8 candidates. Among them, gSO1 showed the best efficiency. Pig endothelial cells (PECs) from an α-Gal knockout pig were then used to examine the changes in the expression of the H-D antigen by the knockout of the CMAH genome by the pX330-gS01. CONCLUSIONS Changes in the expression of the H-D antigen in the PECs with the CRISPR (gS01) were clear in comparison with those in the parental cells, on the basis of FACS analysis data. The expression of the H-D antigen can be knocked out by use of the CRISPR system for pCMAH, thus confirming that this system is a very convenient system for producing knockout pigs.
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Affiliation(s)
- R Sakai
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.
| | - Y Esaki
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - H Hasuwa
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - M Ikawa
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - P Lo
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - R Matsuura
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - K Nakahata
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - M Zenitani
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - M Asada
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - A Maeda
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - H Eguchi
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - H Okuyama
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - S Miyagawa
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; and Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
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Eguchi H, Kawamura T, Kashiyama N, Matsuura R, Sakai R, Nakahata K, Lo PC, Asada M, Maeda A, Goto M, Toyoda M, Okuyama H, Miyagawa S. Supplemental Analysis for N-linked Sugars in Adult Pig Islets. Transplant Proc 2016; 48:1302-3. [PMID: 27320609 DOI: 10.1016/j.transproceed.2015.10.071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/03/2015] [Indexed: 10/21/2022]
Abstract
The pig pancreas is considered to be one of the most suitable sources of islets for clinical xenotransplantation. However, after producing α1-3galactosyltransferase knockout pigs, most of the organs of these pigs showed less antigenicity to the human body. Wild-type adult pig islets (APIs) that originally produced negligible levels of α-Gal, different from neonatal porcine islet-like cell clusters, showed a clear antigenicity to human serum. Concerning the so-called non-Gal epitopes, many studies related to glycoproteins and glycolipids are ongoing in efforts to identify them. However, our knowledge of non-Gal glycoantigens remains incomplete. In our previous study, N-glycans were isolated from APIs, and the structures of 28 of the N-glycans were detected. In this study, to identify additional structures, further analyses were performed by liquid chromatography-mass spectrometry (LC-MS). N-glycans were isolated from APIs by the method described by O'Neil et al with minor modifications and LC-MS-based structural analyses were then performed. The detected N-glycan peaks in the LC-MS spectra were selected using the FLexAnalysis software program and the structures of the glycans were predicted using the GlyocoMod Tool. The API preparation contained 11 peaks and 16 structures were then nominated as containing N-linked sugars. Among them, 5 sulfated glycans were estimated, confirming the existence of sulfate structures in N-glycans in API. In addition, these data may supplement several N-glycan structures that contain two deoxyhexose units, such as fucose, to our previous report. The data herein will be helpful for future studies of antigenicity associated with API.
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Affiliation(s)
- H Eguchi
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - T Kawamura
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - N Kashiyama
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - R Matsuura
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - R Sakai
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - K Nakahata
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - P-C Lo
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Asada
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - A Maeda
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Goto
- International Advanced Research and Education Organization, Tohoku University, Miyagi, Japan
| | - M Toyoda
- Research Department, Sumitomo Bakelite Co. Ltd, Japan
| | - H Okuyama
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - S Miyagawa
- Department of Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Watanabe K, Uemura K, Asada M, Maesako M, Akiyama H, Shimohama S, Takahashi R, Kinoshita A. The participation of insulin-like growth factor-binding protein 3 released by astrocytes in the pathology of Alzheimer's disease. Mol Brain 2015; 8:82. [PMID: 26637371 PMCID: PMC4670528 DOI: 10.1186/s13041-015-0174-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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: 07/26/2015] [Accepted: 11/30/2015] [Indexed: 01/02/2023] Open
Abstract
Background Alzheimer’s disease (AD) is characterized by senile plaques, extracellular deposits composed primarily of amyloid–beta (Aβ), and neurofibrillary tangles, which are abnormal intracellular inclusions containing hyperphosphorylated tau. The amyloid cascade hypothesis posits that the deposition of Aβ in the brain parenchyma initiates a sequence of events that leads to dementia. However, the molecular process by which the extracellular accumulation of Aβ peptides promotes intracellular pathologic changes in tau filaments remains unclear. To elucidate this process, we presumed that astrocytes might trigger neuronal reactions, leading to tau phosphorylation. In this study, we examined AD pathology from the perspective of the astrocyte-neuron interaction. Results A cytokine-array analysis revealed that Aβ stimulates astrocytes to release several chemical mediators that are primarily related to inflammation and cell adhesion. Among those mediators, insulin-like growth factor (IGF)-binding protein 3 (IGFBP-3) was highly upregulated. In AD brains, the expression of IGFBP-3 was found to be increased by western blot analysis, and increased expression of IGFBP-3 was observed in astrocytes via fluorescence microscopy. In addition, we reproduced the increase in IGFBP-3 after treatment with Aβ using human astrocytoma cell lines and found that IGFBP-3 was expressed via calcineurin. In AD brains, the activated forms of calcineurin were found to be increased by western blot analysis, and increased expression of calcineurin was observed in astrocytes via fluorescence microscopy. When Ser9 of glycogen synthase kinase-3β (GSK-3β) is phosphorylated, GSK-3β is controlled and tau phosphorylation is suppressed. Aβ suppresses the phosphorylation of GSK-3β, leading to tau phosphorylation. In this study, we found that IGF-Ι suppressed tau phosphorylation induced by Aβ, although IGFBP-3 inhibited this property of IGF-Ι. As a result, IGFBP-3 contributed to tau phosphorylation and cell death induced by Aβ. Conclusions Our study suggested that calcineurin in astrocytes was activated by Aβ, leading to IGFBP-3 release. We further demonstrated that IGFBP-3 produced by astrocytes induced tau phosphorylation in neurons. Our study provides novel insights into the role of astrocytes in the induction of tau phosphorylation and suggests that IGFBP-3 could be an important link between Aβ and tau pathology and an important therapeutic target. Electronic supplementary material The online version of this article (doi:10.1186/s13041-015-0174-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kiwamu Watanabe
- Department of Neurology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Kengo Uemura
- Department of Neurology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Megumi Asada
- Department of Neurology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan. .,School of Human Health Sciences Faculty of Medicine, Kyoto University, Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Masato Maesako
- School of Human Health Sciences Faculty of Medicine, Kyoto University, Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Haruhiko Akiyama
- Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan.
| | - Shun Shimohama
- Department of Neurology, Sapporo Medical University School of Medicine, 16 Minami-1-jyo-Nishi, Chuo-ku, Sapporo, 060-8543, Japan.
| | - Ryosuke Takahashi
- Department of Neurology, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan.
| | - Ayae Kinoshita
- School of Human Health Sciences Faculty of Medicine, Kyoto University, Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
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Kishi H, Kunimitsu Y, Nakashima Y, Abe T, Imade J, Oshita S, Morishita Y, Asada M. Control of nanostructures generated in epoxy matrices blended with PMMA-b-PnBA-b-PMMA triblock copolymers. EXPRESS POLYM LETT 2015. [DOI: 10.3144/expresspolymlett.2015.4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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12
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Noda Y, Asada M, Kubota M, Maesako M, Watanabe K, Uemura M, Kihara T, Shimohama S, Takahashi R, Kinoshita A, Uemura K. Copper enhances APP dimerization and promotes Aβ production. Neurosci Lett 2013; 547:10-5. [PMID: 23669644 DOI: 10.1016/j.neulet.2013.04.057] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Revised: 04/22/2013] [Accepted: 04/27/2013] [Indexed: 12/26/2022]
Abstract
Alzheimer's disease (AD) is characterized by the deposition of amyloid-β (Aβ) plaques, senile plaque. The Aβ peptide is cleaved from amyloid precursor protein (APP) by β-secretase and γ-secretase. Until now, many literatures have documented that the high concentration of copper is present in Aβ plaques and enhances aggregation of. The APP copper binding domain (CuBD) is located in the N-terminal next to the growth factor-like domain that gets involved in APP homodimerization. Importantly, dimerization of APP has profound effect on Aβ production. We investigated whether copper alters the state of APP dimerization and how it affects APP metabolism. Here, we demonstrate that copper enhanced APP dimerization and increased extracellular release of Aβ. Moreover, copper chelator, D-penicillamine, suppressed APP dimerization and decreased extracellular release of Aβ. These results suggest that the action of copper may be profoundly associated with the pathway of Aβ production in AD pathogenesis.
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Affiliation(s)
- Yasuha Noda
- Department of Health Science, Kyoto University Graduate School of Medicine, 53 Shogoinkawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
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Abstract
Immunohistochemical profiles of 23 cases of basal cell carcinoma (BCC) were examined and compared with adjacent normal skin using three keratin antibodies, 34betaB4, 312C8-1 and E3, which recognize keratin 1, 14 and 17, respectively. In normal skin, 34betaB4 was expressed in suprabasal cells of the epidermis, sebaceous duct cells and the outer root sheaths of hair follicles at the level of sebaceous duct insertion. 312C8-1 was seen in basal cells of the epidermis, the outer root sheaths of hair follicles, and the peripheral cells of sebaceous glands. E3 was detected in the outer root sheaths of hair follicles, and the peripheral cells of sebaceous glands, while it was absent in the epidermis. In BCC, 312C8-1 and E3 were homogeneously found in all 23 cases, and 34betaB4 was sporadically expressed in 3. Therefore. the results suggest that the keratin expression of BCC resembles that of the pilosebaceous apparatus.
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Affiliation(s)
- A Tsubura
- KANSAI MED UNIV,DEPT DERMATOL,MORIGUCHI,OSAKA 570,JAPAN. FREE UNIV AMSTERDAM,DEPT OBSTET & GYNECOL,1081 HV AMSTERDAM,NETHERLANDS
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Asada M, Jiang N, Sendogdular L, Gin P, Wang Y, Endoh MK, Koga T, Fukuto M, Schultz D, Lee M, Li X, Wang J, Kikuchi M, Takahara A. Heterogeneous Lamellar Structures Near the Polymer/Substrate Interface. Macromolecules 2012. [DOI: 10.1021/ma301000z] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [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)
- M. Asada
- Department of Materials Science
and Engineering, Stony Brook University, Stony Brook, New York 11794-2275, United States
- Kurashiki Research Center, Kuraray Co., Ltd., 2045-1 Sakazu, Kurashiki, Okayama
710-0801, Japan
| | - N. Jiang
- Department of Materials Science
and Engineering, Stony Brook University, Stony Brook, New York 11794-2275, United States
| | - L. Sendogdular
- Department of Materials Science
and Engineering, Stony Brook University, Stony Brook, New York 11794-2275, United States
| | - P. Gin
- Department of Materials Science
and Engineering, Stony Brook University, Stony Brook, New York 11794-2275, United States
| | - Y. Wang
- Department of Materials Science
and Engineering, Stony Brook University, Stony Brook, New York 11794-2275, United States
| | - M. K. Endoh
- Department of Materials Science
and Engineering, Stony Brook University, Stony Brook, New York 11794-2275, United States
| | - T. Koga
- Department of Materials Science
and Engineering, Stony Brook University, Stony Brook, New York 11794-2275, United States
| | - M. Fukuto
- Condensed
Matter Physics and Materials
Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - D. Schultz
- CARS, University of Chicago, Chicago, Illinois 60637, United States
| | - M. Lee
- CARS, University of Chicago, Chicago, Illinois 60637, United States
| | - X. Li
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439,
United States
| | - J. Wang
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439,
United States
| | - M. Kikuchi
- Japan Science
Technology Agency,
ERATO, Takahara Soft Interfaces, CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - A. Takahara
- Japan Science
Technology Agency,
ERATO, Takahara Soft Interfaces, CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395,
Japan
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Maesako M, Uemura K, Kuzuya A, Sasaki K, Asada M, Watanabe K, Ando K, Kubota M, Akiyama H, Takahashi R, Kihara T, Shimohama S, Kinoshita A. Gain of function by phosphorylation in Presenilin 1-mediated regulation of insulin signaling. J Neurochem 2012; 121:964-73. [DOI: 10.1111/j.1471-4159.2012.07741.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Maesako M, Uemura K, Kubota M, Kuzuya A, Sasaki K, Asada M, Watanabe K, Hayashida N, Ihara M, Ito H, Shimohama S, Kihara T, Kinoshita A. Environmental enrichment ameliorated high-fat diet-induced Aβ deposition and memory deficit in APP transgenic mice. Neurobiol Aging 2011; 33:1011.e11-23. [PMID: 22197104 DOI: 10.1016/j.neurobiolaging.2011.10.028] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2011] [Revised: 08/04/2011] [Accepted: 10/24/2011] [Indexed: 11/29/2022]
Abstract
The pathogenesis of Alzheimer's disease (AD) is tightly associated with metabolic dysfunctions. In particular, a potential link between type 2 diabetes (T2DM) and AD has been suggested epidemiologically, clinically, and experimentally, and some studies have suggested that exercise or dietary intervention reduces risk of cognitive decline. However, there is little solid molecular evidence for the effective intervention of metabolic dysfunctions for prevention of AD. In the present study, we established the AD model mice with diabetic conditions through high-fat diet (HFD) to examine the effect of environmental enrichment (EE) on HFD-induced AD pathophysiology. Here, we demonstrated that HFD markedly deteriorated memory impairment and increased β-amyloid (Aβ) oligomers as well as Aβ deposition in amyloid precursor protein (APP) transgenic mice, which was reversed by exposure to an enriched environment for 10 weeks, despite the continuation of HFD. These studies provide solid evidence that EE is a useful intervention to ameliorate behavioral changes and AD pathology in HFD-induced aggravation of AD symptoms in APP transgenic mice.
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Affiliation(s)
- Masato Maesako
- School of Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Watanabe K, Maesako M, Asada M, Kuzuya A, Uemura K, Akiyama H, Takahashi R, Kinoshita A. Investigating the pathology of Alzheimer's disease related to calcineurin in astrocytes. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.1260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Koga T, Gin P, Yamaguchi H, Endoh M, Asada M, Sendogdular L, Kobayashi M, Takahara A, Akgun B, Satija S, Sumi T. Generality of anomalous expansion of polymer chains in supercritical fluids. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.07.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Suwa A, Kubota M, Tashiro Y, Maesako M, Asada M, Uemura K, Kinoshita A. Analysis of N-cadherin shedding deficient knock-in mice. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Maesako M, Sasaki K, Kuzuya A, Asada M, Kubota M, Ando K, Ihara M, Ito H, Kihara T, Uemura K, Kinoshita A. Environmental Enrichment ameliorates high fat diet induced memory deficit and β-amyloidosis. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.1258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Asada M, Uemura K, Kuzuya A, Maesako M, Kubota M, Watanabe K, Kihara T, Shimohama S, Takahashi R, Berezovska O, Kinoshita A. N-cadherin enhances APP dimerization at the extracellular domain and modulates Aβ production. Neurosci Res 2011. [DOI: 10.1016/j.neures.2011.07.1720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Maesako M, Uemura K, Kuzuya A, Sasaki K, Asada M, Watanabe K, Ando K, Kubota M, Kihara T, Kinoshita A. Presenilin regulates insulin signaling via a gamma-secretase-independent mechanism. J Biol Chem 2011; 286:25309-16. [PMID: 21622565 DOI: 10.1074/jbc.m111.248922] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Presenilin (PS), a causative molecule of familial Alzheimer disease, acts as a crucial component of the γ-secretase complex, which is required to cleave type I transmembrane proteins such as amyloid precursor protein and Notch. However, it also functions through γ-secretase-independent pathways. Recent reports suggested that PS could regulate the expression level of cell surface receptors, including the PDGF and EGF receptors, followed by modulating their downstream pathways via γ-secretase-independent mechanisms. The main purpose of this study was to clarify the effect of PS on expression of the insulin receptor (IR) as well as on insulin signaling. Here, we demonstrate that PS inhibited IR transcription and reduced IR expression, and this was followed by down-regulation of insulin signaling. Moreover, we suggest that neither γ-secretase activity nor Wnt/β-catenin signaling can reduce the expression of IR, but a PS-mediated increase in the intracellular Ca(2+) level can be associated with it. These results clearly indicate that PS can functionally regulate insulin signaling by controlling IR expression.
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Affiliation(s)
- Masato Maesako
- School of Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
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Maesako M, Uemura K, Kubota M, Ando K, Kuzuya A, Asada M, Kihara T, Kinoshita A. Insulin regulates Presenilin 1 localization via PI3K/Akt signaling. Neurosci Lett 2010; 483:157-61. [DOI: 10.1016/j.neulet.2010.07.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 07/20/2010] [Accepted: 07/20/2010] [Indexed: 12/21/2022]
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Ando K, Maesako M, Asada M, Kubota M, Aoyagi N, Kuzuya A, Uemura K, Kawamata J, Takahashi R, Kinoshita A. P2‐305: Analysis of N‐cadherin interacting proteins in Alzheimer's diesase. Alzheimers Dement 2010. [DOI: 10.1016/j.jalz.2010.05.1356] [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: 10/19/2022]
Affiliation(s)
- Koichi Ando
- Department of Neurology Kyoto University Graduate School of MedicineKyoto Japan
| | - Masato Maesako
- School of Health Sciences Kyoto University Faculty of MedicineKyoto Japan
| | - Megumi Asada
- School of Health Sciences Kyoto University Faculty of MedicineKyoto Japan
| | - Masakazu Kubota
- School of Health Sciences Kyoto University Faculty of MedicineKyoto Japan
| | - Nobuhisa Aoyagi
- Department of Neurology Kyoto University Graduate School of MedicineKyoto Japan
| | - Akira Kuzuya
- Department of Neurology Kyoto University Graduate School of MedicineKyoto Japan
| | | | - Jun Kawamata
- Department of Neurology Kyoto University Graduate School of MedicineKyoto Japan
| | - Ryosuke Takahashi
- Department of Neurology Kyoto University Graduate School of MedicineKyoto Japan
| | - Ayae Kinoshita
- School of Health Sciences Kyoto University Faculty of MedicineKyoto Japan
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Ozaki M, Kaji K, Matsuda N, Ochiai K, Asada M, Ohba T, Hosoi E, Tado H, Koizumi T, Suwa G, Takatsuki S. The relationship between food habits, molar wear and life expectancy in wild sika deer populations. J Zool (1987) 2010. [DOI: 10.1111/j.1469-7998.2009.00653.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Maesako M, Uemura K, Kubota M, Ando K, Kuzuya A, Asada M, Yamada N, Akiyama H, Kinoshita A. Effects of presenilin 1 phosphorylation on insulin receptor. Neurosci Res 2010. [DOI: 10.1016/j.neures.2010.07.2407] [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: 10/19/2022]
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27
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Ando K, Watanabe K, Maesako M, Asada M, Kubota M, Aoyagi N, Kuzuya A, Uemura K, Kawamata J, Takahashi R, Kinoshita A. Analysis of N-cadherin interacting proteins in Alzheimer's disease. Neurosci Res 2010. [DOI: 10.1016/j.neures.2010.07.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Asada M, Hosoda K, Kuniyoshi Y, Ishiguro H, Inui T, Yoshikawa Y, Ogino M, Yoshida C. Cognitive Developmental Robotics: A Survey. ACTA ACUST UNITED AC 2009. [DOI: 10.1109/tamd.2009.2021702] [Citation(s) in RCA: 362] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Sone M, Uchida A, Komatsu A, Suzuki E, Ibuki I, Asada M, Shiwaku H, Tamura T, Hoshino M, Okazawa H, Nabeshima YI. Loss of yata, a novel gene regulating the subcellular localization of APPL, induces deterioration of neural tissues and lifespan shortening. PLoS One 2009; 4:e4466. [PMID: 19209226 PMCID: PMC2635962 DOI: 10.1371/journal.pone.0004466] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2008] [Accepted: 01/02/2009] [Indexed: 11/24/2022] Open
Abstract
Background The subcellular localization of membrane and secreted proteins is finely and dynamically regulated through intracellular vesicular trafficking for permitting various biological processes. Drosophila Amyloid precursor protein like (APPL) and Hikaru genki (HIG) are examples of proteins that show differential subcellular localization among several developmental stages. Methodology/Principal Findings During the study of the localization mechanisms of APPL and HIG, we isolated a novel mutant of the gene, CG1973, which we named yata. This molecule interacted genetically with Appl and is structurally similar to mouse NTKL/SCYL1, whose mutation was reported to cause neurodegeneration. yata null mutants showed phenotypes that included developmental abnormalities, progressive eye vacuolization, brain volume reduction, and lifespan shortening. Exogenous expression of Appl or hig in neurons partially rescued the mutant phenotypes of yata. Conversely, the phenotypes were exacerbated in double null mutants for yata and Appl. We also examined the subcellular localization of endogenous APPL and exogenously pulse-induced APPL tagged with FLAG by immunostaining the pupal brain and larval motor neurons in yata mutants. Our data revealed that yata mutants showed impaired subcellular localization of APPL. Finally, yata mutant pupal brains occasionally showed aberrant accumulation of Sec23p, a component of the COPII coat of secretory vesicles traveling from the endoplasmic reticulum (ER) to the Golgi. Conclusion/Significance We identified a novel gene, yata, which is essential for the normal development and survival of tissues. Loss of yata resulted in the progressive deterioration of the nervous system and premature lethality. Our genetic data showed a functional relationship between yata and Appl. As a candidate mechanism of the abnormalities, we found that yata regulates the subcellular localization of APPL and possibly other proteins.
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Affiliation(s)
- Masaki Sone
- Medical Top Track Program, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan.
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Asada M, Uemura K, Kuzuya A, Kubota M, Shimohama S, Takahashi R, Kinoshita A. Effects of N-cadherin on APP homodimerization. Neurosci Res 2009. [DOI: 10.1016/j.neures.2009.09.535] [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: 10/20/2022]
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32
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Ando K, Maesako M, Asada M, Kubota M, Aoyagi N, Kuzuya A, Uemura K, Kawamata J, Takahashi R, Kinosita A. Analysis of N-cadherin interacting proteins in Alzheimer diesase. Neurosci Res 2009. [DOI: 10.1016/j.neures.2009.09.537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Maesako M, Uemura K, Kubota M, Kuzuya A, Ando K, Ikeuchi T, Asada M, Kinoshita A. Functional regulation of Presenilin1 via insulin signaling. Neurosci Res 2009. [DOI: 10.1016/j.neures.2009.09.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Uemura K, Lill CM, Banks M, Asada M, Aoyagi N, Ando K, Kubota M, Kihara T, Nishimoto T, Sugimoto H, Takahashi R, Hyman BT, Shimohama S, Berezovska O, Kinoshita A. N-cadherin-based adhesion enhances Abeta release and decreases Abeta42/40 ratio. J Neurochem 2008; 108:350-60. [PMID: 19046403 DOI: 10.1111/j.1471-4159.2008.05760.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In neurons, Presenilin 1(PS1)/gamma-secretase is located at the synapses, bound to N-cadherin. We have previously reported that N-cadherin-mediated cell-cell contact promotes cell-surface expression of PS1/gamma-secretase. We postulated that N-cadherin-mediated trafficking of PS1 might impact synaptic PS1-amyloid precursor protein interactions and Abeta generation. In the present report, we evaluate the effect of N-cadherin-based contacts on Abeta production. We demonstrate that stable expression of N-cadherin in Chinese hamster ovary cells, expressing the Swedish mutant of human amyloid precursor protein leads to enhanced secretion of Abeta in the medium. Moreover, N-cadherin expression decreased Abeta(42/40) ratio. The effect of N-cadherin expression on Abeta production was accompanied by the enhanced accessibility of PS1/gamma-secretase to amyloid precursor protein as well as a conformational change of PS1, as demonstrated by the fluorescence lifetime imaging technique. These results indicate that N-cadherin-mediated synaptic adhesion may modulate Abeta secretion as well as the Abeta(42/40) ratio via PS1/N-cadherin interactions.
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Affiliation(s)
- Kengo Uemura
- Department of Neurology, Graduate School of Medicine, Kyoto University, 53 Shogoinkawahara-cho, Sakyo-ku, Kyoto, Japan
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Mori A, Urabe S, Asada M, Tanaka Y, Tazaki H, Yamamoto I, Kimura N, Ozawa T, Morris ST, Hickson R, Kenyon PR, Blair H, Choi CB, Arai T. Comparison of Plasma Metabolite Concentrations and Enzyme Activities in Beef Cattle Raised by Different Feeding Systems in Korea, Japan and New Zealand. ACTA ACUST UNITED AC 2007; 54:342-5. [PMID: 17718805 DOI: 10.1111/j.1439-0442.2007.00964.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Concentrations of metabolites and immunoreactive insulin (IRI) and activities of enzymes related to energy metabolism were measured in plasma of Korean and Japanese beef cattle, which were raised by the indoor feeding system programmed to feed larger amount of roughage in their growing periods and larger amount of concentrate diet in their finishing periods (Japanese feeding system), and grazing New Zealand beef cattle. By the Japanese beef grading system, Korean and Japanese beef cattle showed high beef quality score, average grade 3.3 and 3.6, respectively. The plasma free fatty acid and lactate concentrations and lactate dehydrogenase (LDH), malate dehydrogenase (MDH) and aspartate aminotransferase (AST) activities in Korean beef cattle were significantly higher than those in Japanese beef cattle. The plasma lactate concentration in Korean beef cattle was 8.40 mmol/l, which was similar to the values observed in lactic acidosis. The higher activities of plasma LDH, MDH and AST may indicate slight liver damage by slightly acidotic conditions in Korean beef cattle. New Zealand beef cattle fed on pasture which they harvest by grazing showed significantly lower plasma glucose, cholesterol, lactate and IRI concentrations and enzyme activities than those in Korean and Japanese beef cattle fed on larger amount of concentrate diets. Plasma metabolite concentrations and energy metabolism-related enzyme activities may be good indicators for evaluating metabolic conditions of beef cattle raised by different feeding systems.
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Affiliation(s)
- A Mori
- Department of Veterinary Science, School of Veterinary Medicine, Nippon Veterinary and Life Science University, Musashiro, Tokyo 180-8602, Japan
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Yamaya M, Sasaki T, Yasuda H, Inoue D, Suzuki T, Asada M, Yoshida M, Seki T, Iwasaki K, Nishimura H, Nakayama K. Hochu-ekki-to inhibits rhinovirus infection in human tracheal epithelial cells. Br J Pharmacol 2007; 150:702-10. [PMID: 17310142 PMCID: PMC2013869 DOI: 10.1038/sj.bjp.0707135] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND AND PURPOSE A traditional Japanese herbal medicine, hochu-ekki-to, has been used for the symptomatic treatment of the common cold and to reduce the frequency of colds in patients with chronic obstructive pulmonary disease. However, the inhibitory effects of hochu-ekki-to on infection by rhinovirus (RV), the major cause of common colds, have not been studied. EXPERIMENTAL APPROACH Human tracheal epithelial cells in culture were infected with a major group rhinovirus-RV14. Virus output and viral RNA were measured along with interleukin (IL)-1beta, IL-6, IL-8 and tumor necrosis factor (TNF)-alpha), mRNA for intercellular adhesion molecule (ICAM)-1 and acidic endosomes in cells. KEY RESULTS RV14 infection increased virus titers, the content of cytokines in supernatants and RV14 RNA in the cells. Hochu-ekki-to decreased virus output, RV14 RNA in the cells, susceptibility to RV infection and supernatant cytokine concentrations after RV14 infection. Hochu-ekki-to reduced mRNA for ICAM-1, the receptor for RV14, the concentration of the soluble form of ICAM-1 and the number and fluorescence intensity of acidic endosomes in the cells, from which RV RNA enters into the cytoplasm, at RV14 infection. Glycyrrhizin, one of the chemical constituents of hochu-ekki-to, reduced supernatant virus titers dose-dependently. CONCLUSION AND IMPLICATIONS Hochu-ekki-to inhibited RV14 infection by decreasing ICAM-1 and by blocking entry of viral RNA into the cytoplasm from the endosomes, in airway epithelial cells. Glycyrrhizin may be partly responsible for inhibition of RV infection by hochu-ekki-to. Hochu-ekki-to could modulate airway inflammation by reducing production of cytokines in RV infections.
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Affiliation(s)
- M Yamaya
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
- Author for correspondence:
| | - T Sasaki
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - H Yasuda
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - D Inoue
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - T Suzuki
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - M Asada
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - M Yoshida
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - T Seki
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - K Iwasaki
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
| | - H Nishimura
- Clinical Research Division, Virus Research Center, Sendai National Hospital Sendai, Japan
| | - K Nakayama
- Department of Geriatric and Respiratory Medicine, Tohoku University School of Medicine Sendai, Japan
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Hashiyada Y, Takahashi H, Asada M, Sakuta N, Furuyashiki S, Yamaya S, Oike T, Konishi K, Takahashi M. 163 FUNCTIONAL COMPARISON OF BOVINE TROPHOBLASTIC VESICLES DERIVED FROM FRESHLY COLLECTED CONCEPTUSES AND SERIALLY PASSAGED TROPHOBLAST CELLS. Reprod Fertil Dev 2007. [DOI: 10.1071/rdv19n1ab163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The co-transfer of trophoblastic vesicles (TVs), derived from in vivo-recovered conceptuses, is a well-known method for promoting the successful implantation of embryos through the action of bovine interferon-tau (bIFN-τ) on maternal-fetal recognition. However, the preparation of these TVs is a tedious process. Techniques have progressed for obtaining large numbers of TVs consistently from serially passaged trophoblast cells. The aim of the present study was to compare the function of TVs for co-transfer derived from in vitro production with those derived from in vivo-flushed embryos, and without co-transfer. Production of TVs from serially passaged trophoblast cells was carried out according to the method previously described by Takahashi et al. (2000, Cloned animals and placentation, 147–151, Yokendo: Tokyo, Japan). The in vitro TVs (IVP-TVs), 1–2 mm in diameter, were taken from cells passaged 48th to 52th and 96th. In vivo-derived TVs (vivo-TVs) were prepared from recovered elongating blastocysts 7 days after transfer of frozen–thawed embryos on Day 8 of the estrous cycle. Demi-embryos were produced from fresh embryos of flushed Japanese Black cows by bisection using a micromanipulator. Pairs of demi-embryos, without (control) or with 2 to 4 TVs, were transferred into the uterus ipsilateral of 65 Japanese Short Horn recipients to the functional corpus luteum. Pregnancy diagnoses were performed twice, from Day 30 to 70, by ultrasound scanning. BIFN-τ content of culture media was measured by RIA (Takahashi et al. 2005 Theriogenology 63, 1050–1060). Data were analyzed by chi-square test and Fisher's exact test. The pregnancy rate in the IVP-TVs group (20.0%, 5/25) had a tendency to be lower than in the vivo-TVs (46.2%, 6/13), although this did not reach statistical significance (P = 0.09). These pregnant animals were transferred TVs from passaged 48th-52nd (5/19). In the control group 33.3% (9/27) of recipients conceived. Twin pregnancy rate was also lower in the IVP-TVs (0/5) than in the other two groups (3/6 and 5/9, P = 0.09 and P = 0.04, respectively). Fetal losses occurred only in the single pregnancies of IVP-TVs (60.0%, 3/5) and vivo-TVs (16.7%, 1/6) up until Day 70. Reproductive efficiency, based on numbers of delivered offspring, was significantly lower in the IVP-TVs (8%, 2/25) compared with the vivo-TVs (61.5%, 8/13) and control (51.9%, 14/27) groups, respectively (P < 0.01). BIFN-τ levels secreted from the TVs derived from passages 46th and 48th were 0.157 ng/mL-1 and 0.113 ng/mL-1, respectively. In conclusion, compared with the in vivo TVs, those from serially passaged trophoblast cells had a negative effect on pregnancy, although the morphology of the two differently derived TVs was similar.
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Nakayama K, Yasuda H, Watanabe M, Sasaki T, Asada M, Yoshida M, Yanagihara K, Yamaya M. C24. Nitroglycerin treatment may increase response to docetaxel and carboplatin regimen via inhibitions of hypoxia-inducible factor-1 pathway in patients with lung adenocarcinoma. Nitric Oxide 2007. [DOI: 10.1016/j.niox.2007.09.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yasuda H, Nakayama K, Watanabe M, Kaneta T, Asada M, Sasaki T, Yanagihara K, Yamaya M. A24. Nitroglycerin may increase response to anticancer drugs in non-small cell lung cancer via reduction of HIF-1α pathway. Nitric Oxide 2007. [DOI: 10.1016/j.niox.2007.09.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Junji M, Tsuruoka A, Morimoto K, Uenaka T, Yamamoto Y, Watanabe T, Okada M, Abe S, Wakabayashi T, Asada M. 37 POSTER VEGFRs inhibitor E7080 inhibits lymph node metastasis of human breast carcinoma, by preventing murine lymphatic endothelial cells from lymphangiogenesis. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70043-x] [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: 10/23/2022] Open
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Nakayama K, Yasuda H, Sasaki T, Suzuki T, Asada M, Okinaga S, Yamaya M. Arterial blood carboxyhemoglobin as a predictor for response after chemotherapy in patients with lung cancer. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.20029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
20029 Background: It is desirable to predict the response to chemotherapy in patients with lung cancer using a simple and reliable method. Arterial blood carboxyhemoglobin concentration (Hb-CO) is a useful biomarker for severity in inflammatory pulmonary diseases and is associated with cancer tissue volume in operable NSCLC. However, arterial Hb-CO as a predictor for response to chemotherapy in advanced lung cancer has not been reported. Methods: We enrolled 35 patients with SCLC and 66 ones with NSCLC in stage III or stage IV, treated with chemotherapy between October 2000 and December 2002. All patients with SCLC were treated with PE (cisplatin 80 mg/m2, day 1 and etoposide 100 mg/m2, day 1-day 3) every 3 weeks. The patients with NSCLC were treated with either VC (vinorelbine 25 mg/m2, day 1 and 8 plus cisplatin 80 mg/m2, day 1) or DG (gemcitabine 1100 mg/m2, day 1 and day 8 plus docetaxel 60 mg/m2, day 1) every 3 weeks. Arterial Hb-CO were examined before and at during chemotherapy and the response rate were studied. The patients with either a partial response (PR) or a complete response (CR) were categorized as responder, whereas patients with no change (NC) or progressive disease (PD) were as non-responders. According to the analysis in aterial Hb-CO, the patients were divided into two subgroups, patients with high (≥0.3%) or low (<0.3%) maximum changes in the Hb-CO (ΔHb-CO) during chemotherapy. Results: The response rate was 80% in SCLC and 38% in NSCLC. In responder patients with SCLC or NSCLC, the arterial Hb-CO significantly increased and reached maximum at day 4 of the 1st cycle of chemotherapy. In contrast, in non-responder patients, the Hb-CO did not increase during the chemotherapy. The response rate in patients with high ΔHb-CO was significantly higher than that with low ΔHb-CO in SCLC (26/26 vs 2/9, P < .001) and NSCLC (24/24 vs 1/42, P < .001). The high ΔHb-CO at day 4 of the 1st chemotherapy cycle was significantly associated with the response to the chemotherapy in SCLC (Odd ratio, OR = 12.5 [95% CI: 3.13–50, P < .001]) and in NSCLC (OR = 25 [95% CI: 3.23–100, P < .01]) (logistic regression analysis). Conclusions: Increases in arterial Hb-CO at day 4 of the 1st chemotherapy cycle in SCLC and SCLC may be a predictor of response to chemotherapy. No significant financial relationships to disclose.
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Affiliation(s)
| | | | | | | | - M. Asada
- Tohoku University, Sendai, Japan
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Sasaki T, Yasuda H, Nakayama K, Okinaga S, Suzuki T, Asada M, Kanda A, Shindo T, Ohuchi Y, Yamaya M. A randomized phase II trial comparing carboplatin pleurodesis with cisplatin pleurodesis in patients with stage IIIB/IV non-small cell lung cancer (NSCLC) with malignant pleural effusions (MPE). J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.17012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
17012 Background: We previously reported that carboplatin pleurodesis in patients with advanced lung adenocarcinoma with MPE, renal insufficiency, and poor performance status (PS) was an effective palliative therapy. However, the efficacy and toxicity profile of carboplatin pleurodesis in patients with NSCLC with MPE in comparison with those of cisplatin pleurodesis have not been reported. Methods: Thirty patients with stage IIIB/IV NSCLC accompanied with MPE who did not have an indication for systemic chemotherapy because of poor PS more than 2 were randomized to carboplatin pleurodesis (target area under the curve as 5 μg-min/ml using Calvert’s formula) and cisplatin pleurodesis (80 mg/m2) in a single-blind and controlled trial. Enrollment took place between Oct 2004 and Dec 2005. Primary efficacy endpoints were the best confirmed response rate, time to progression (TTP) in controlling MPE and adverse effects. Results: Fifteen of 30 patients were treated by carboplatin pleurodesis, and resting 15 of 30 patients were treated by cisplatin pleurodesis to control MPE. The response rate in carboplatin pleurodesis was not statistically different from that for patients in cisplatin pleurodesis (P = .226). The use of anticancer drugs for pleurodesis was not significantly associated with response rate in logistic regression analysis (relative risk = 14.2, 95% CI: 0.6–320.5, P = .095). Median TTP in carboplatin pleurodesis was not different from that in cisplatin pleurodesis (96 days vs 83 days). The use of carboplatin for pleurodesis (P = .016) and gender (P = .005) were associated with prolongation of TTP in the Cox regression method. Kaplan-Meier analysis showed that the progression free probability curve in carboplatin pleurodesis was not different from that in cisplatin pleurodesis (P = .275). The rate of Grade 3 thrombocytopenia in carboplatin pleurodesis (25%) was higher than that in cisplatin pleurodesis (0%), but there was no statistical significance (P = .096). Conclusions: Carboplatin pleurodesis and cisplatin pleurodesis may be feasible and acceptable toxicity profiles. No significant financial relationships to disclose.
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Affiliation(s)
- T. Sasaki
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - H. Yasuda
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - K. Nakayama
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - S. Okinaga
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - T. Suzuki
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - M. Asada
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - A. Kanda
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - T. Shindo
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - Y. Ohuchi
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
| | - M. Yamaya
- Tohoku University School of Medicine, Sendai, Japan; Kesennuma General Hospital, Kesennuma, Japan; Frukawa City Hospital, Furukawa, Japan; Senboku Kumiai General Hospital, Ohmagari, Japan; Iwai Hospital, Ichinoseki, Japan
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Yasuda H, Okinaga S, Yamaya M, Ohrui T, Higuchi M, Shinkawa M, Itabashi S, Nakayama K, Asada M, Kikuchi A, Shibahara S, Sasaki H. Association of susceptibility to the development of pneumonia in the older Japanese population with haem oxygenase-1 gene promoter polymorphism. J Med Genet 2006; 43:e17. [PMID: 16582079 PMCID: PMC2563217 DOI: 10.1136/jmg.2005.035824] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Oxidative stresses including cigarette smoking are implicated in the pathogenesis of cerebrovascular diseases, which are associated with pneumonia because of frequent aspiration. Haem oxygenase-1 (HO-1) acts in cytoprotection against oxidants, provides anti-inflammatory effects, and inhibits atherogenesis. A (GT)(n) dinucleotide repeat in the human HO-1 promoter modulates HO-1 gene expression and shows length polymorphism, which is grouped into three classes: class S (<27 repeats), class M (> or = 27, <33 repeats), and class L (> or = 33 repeats) alleles. OBJECTIVE To investigate the correlation between the HO-1 gene polymorphism and development of pneumonia in elderly Japanese. METHODS The length of the (GT)n repeats was analysed in 200 elderly patients with pneumonia and 200 control subjects. The association of the HO-1 gene polymorphism with risk of pneumonia was estimated by logistic regression. RESULTS The proportion of allele frequencies in class L, and the proportion of genotypic frequencies in the L-allele carriers (L/L, L/M, and L/S), was significantly higher in patients with pneumonia than in controls (20% v 10% in class L, and 34% v 18% in L-allele carriers). After adjustment for potentially confounding factors, both cerebrovascular disorders and HO-1 gene L-allele carriers were significant and independent risk factors for pneumonia. The adjusted odds ratio for L-allele carriers v non-L-allele carrier was 2.1 (95% confidence interval, 1.2 to 3.6). CONCLUSIONS The large size of a (GT)n repeat in the HO-1 gene promoter may be associated with susceptibility to pneumonia in the older Japanese population.
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Fukui T, Nishio A, Okazaki K, Uza N, Ueno S, Kido M, Inoue S, Kitamura H, Kiriya K, Ohashi S, Asada M, Tamaki H, Matsuura M, Kawasaki K, Suzuki K, Uchida K, Fukui H, Nakase H, Watanabe N, Chiba T. Gastric mucosal hyperplasia via upregulation of gastrin induced by persistent activation of gastric innate immunity in major histocompatibility complex class II deficient mice. Gut 2006; 55:607-15. [PMID: 16322110 PMCID: PMC1856104 DOI: 10.1136/gut.2005.077917] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND AIMS Major histocompatibility complex class II deficient (Aalpha0/0) mice have decreased CD4+ T cells, making them immunologically similar to patients with acquired immunodeficiency syndrome (AIDS). Both patients with AIDS and Aalpha0/0 mice have hypertrophic gastric folds. To clarify the mechanism of gastric mucosal hyperplasia, we investigated the pathophysiology and the role of the innate immunity in the stomach of Aalpha0/0 mice. METHODS Stomachs from 1-6 month old Aalpha0/0 mice, kept under specific pathogen free conditions, were examined at 1 month intervals histologically and immunohistochemically. Gene expression of proinflammatory cytokines, Toll-like receptors (TLRs), cyclooxygenase (COX)-2, and myeloperoxidase (MPO) activity in the gastric mucosa was investigated. Serum gastrin levels and gastric acidity were measured. Bacterial culture of the stomach was performed. To clarify the roles of hypergastrinaemia in the gastric mucosa, a gastrin receptor antagonist (AG041R) was administered. RESULTS Aalpha0/0 mice had a diffusely thick corpus mucosa with infiltration of CD11b+ granulocytes and macrophages. Anti-Ki67 staining demonstrated expansion of the proliferating neck zone. Gene expression of interleukin 1beta, interferon gamma, TLR-2, TLR-4, and COX-2 were upregulated, and MPO activity was increased. Only a small amount of non-pathogenic bacteria was detected in the stomach. Serum gastrin levels and Reg-Ialpha positive cells in the gastric mucosa increased, despite normal gastric acidity. After treatment with AG041R, gastric mucosal thickness was significantly reduced. CONCLUSION Persistent activation of innate immunity in the stomach induced gastric mucosal hyperplasia through upregulation of gastrin synthesis in Aalpha0/0 mice, suggesting a pathophysiology similar to the gastric changes in patients with AIDS.
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Affiliation(s)
- T Fukui
- Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Ito K, Oji Y, Tatsumi N, Shimizu S, Kanai Y, Nakazawa T, Asada M, Jomgeow T, Aoyagi S, Nakano Y, Tamaki H, Sakaguchi N, Shirakata T, Nishida S, Kawakami M, Tsuboi A, Oka Y, Tsujimoto Y, Sugiyama H. Antiapoptotic function of 17AA(+)WT1 (Wilms' tumor gene) isoforms on the intrinsic apoptosis pathway. Oncogene 2006; 25:4217-29. [PMID: 16518414 DOI: 10.1038/sj.onc.1209455] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The WT1 gene is overexpressed in human primary leukemia and a wide variety of solid cancers. The WT1 gene is alternatively spliced at two sites, yielding four isoforms: 17AA(+)KTS(+), 17AA(+)KTS(-), 17AA(-)KTS(+), and 17AA(-)KTS(-). Here, we showed that 17AA(+)WT1-specific siRNA induced apoptosis in three WT1-expressing leukemia cell lines (K562, HL-60, and Kasumi-1), but not in WT1-non-expressing lymphoma cell line (Daudi). 17AA(+)WT1-specific siRNA activated caspase-3 and -9 in the intrinsic apoptosis pathway but not caspase-8 in the extrinsic one. On the other hand, 17AA(-)WT1-specific siRNA did not induce apoptosis in the three WT1-expressing cell lines. The apoptosis was associated with activation of proapoptotic Bax, which was activated upstream of the mitochondria. Constitutive expression of 17AA(+)WT1 isoforms inhibited apoptosis of K562 leukemia cells induced by apoptosis-inducing agents, etoposide and doxorubicin, through the protection of mitochondrial membrane damages, and DNA-binding zinc-finger region of 17AA(+)WT1 isoform was essential for the antiapoptotic functions. We further studied the gene(s) whose expression was altered by the expression of 17AA(+)WT1 isoforms and showed that the expression of proapoptotic Bak was decreased by the expression of 17AA(+)KTS(-)WT1 isoform. Taken together, these results indicated that 17AA(+)WT1 isoforms played antiapoptotic roles at some points upstream of the mitochondria in the intrinsic apoptosis pathway.
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Affiliation(s)
- K Ito
- Department of Functional Diagnostic Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Yasuda H, Yamaya M, Sasaki T, Inoue D, Nakayama K, Yamada M, Asada M, Yoshida M, Suzuki T, Nishimura H, Sasaki H. Carbocisteine inhibits rhinovirus infection in human tracheal epithelial cells. Eur Respir J 2006; 28:51-8. [PMID: 16510461 DOI: 10.1183/09031936.06.00058505] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aim of the study was to examine the effects of a mucolytic drug, carbocisteine, on rhinovirus (RV) infection in the airways. Human tracheal epithelial cells were infected with a major-group RV, RV14. RV14 infection increased virus titres and the cytokine content of supernatants. Carbocisteine reduced supernatant virus titres, the amount of RV14 RNA in cells, cell susceptibility to RV infection and supernatant cytokine concentrations, including interleukin (IL)-6 and IL-8, after RV14 infection. Carbocisteine reduced the expression of mRNA encoding intercellular adhesion molecule (ICAM)-1, the receptor for the major group of RVs. It also reduced the supernatant concentration of a soluble form of ICAM-1, the number and fluorescence intensity of acidic endosomes in the cells before RV infection, and nuclear factor-kappaB activation by RV14. Carbocisteine also reduced the supernatant virus titres of the minor group RV, RV2, although carbocisteine did not reduce the expression of mRNA encoding a low density lipoprotein receptor, the receptor for RV2. These results suggest that carbocisteine inhibits rhinovirus 2 infection by blocking rhinovirus RNA entry into the endosomes, and inhibits rhinovirus 14 infection by the same mechanism as well as by reducing intercellular adhesion molecule-1 levels. Carbocisteine may modulate airway inflammation by reducing the production of cytokines in rhinovirus infection.
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Affiliation(s)
- H Yasuda
- Dept of Geriatric and Respiratory Medicine, Tohoku University School of Medicine, 1-Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan.
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Mayer NM, Masui K, Browne M, Asada M, Ogino M. Using a gyro as a tool for continuously variable lateral stabilisation of dynamic bipeds. Appl Bionics Biomech 2006. [DOI: 10.1533/abbi.2006.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yasuda H, Ebihara S, Yamaya M, Asada M, Sasaki H, Aoki M. Increased arterial carboxyhaemoglobin concentrations in patients with sporadic amyotrophic lateral sclerosis. J Neurol Neurosurg Psychiatry 2004; 75:1076-7. [PMID: 15201381 PMCID: PMC1739118 DOI: 10.1136/jnnp.2003.027532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Hosen N, Yanagihara M, Nakazawa T, Kanato K, Nishida S, Shirakata T, Asada M, Masuda T, Taniguchi Y, Kawakami M, Tsuboi A, Ikegame K, Oka Y, Ogawa H, Kawase I, Oji Y, Sugiyama H. Identification of a gene element essential for leukemia-specific expression of transgenes. Leukemia 2004; 18:415-9. [PMID: 14737070 DOI: 10.1038/sj.leu.2403260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Leukemia-specific promoters and enhancers for gene therapy had never been reported. Since the Wilms' tumor gene WT1 is overexpressed in almost all types of leukemia, WT1 is an ideal target of leukemia-specific therapy. To explore the possibility of gene therapy for leukemia using WT1 promoter and enhancer, their activities in several kinds of cells were analyzed by using the enhanced green fluorescent protein (EGFP) gene as a reporter. First, we identified the best combination (654P/EGFP/int3- enh/3'-enh vector) of the 654-bp WT1 promoter and the two WT1 enhancers located in intron 3 and at the 3' end of the WT1 gene for inducing EGFP expression in K562 cells, which endogenously expressed WT1. When this was transfected into WT1-expressing leukemia cells (K562, HEL), WT1-nonexpressing hematopoietic cells (Daudi, U937), and WT1-expressing nonhematopoietic cells (TYK-nu-CPr, SW480, 293 T), 19.8, 22.9, 1.47, 1.43, 4.50, 4.16, and 1.09 times EGFP expression was induced, respectively, compared to that by the promoter-less EGFP vector. These results showed that the 654P/EGFP/int3-enh/3'-enh vector specifically induced high levels of EGFP expression in WT1-expressing leukemia cells. 654P/int3- enh/3'-enh vector containing transgenes such as suicide genes might become useful tools for leukemia-specific gene therapy.
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Affiliation(s)
- N Hosen
- Department of Molecular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
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Asada M, Hashiyada Y, Konishi K. 335EFFECT OF PATERNAL LINE OF DONOR ON SUPEROVULATORY RESPONSE AND EMBRYO
QUALITY IN JAPANESE BLACK HEIFERS. Reprod Fertil Dev 2004. [DOI: 10.1071/rdv16n1ab335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The objective of this study was to investigate the effect of paternal line of donor on superovulatory response and embryo quality in Japanese Black cattle. Japanese Black cattle have paternal lines that can be classified into the following, according to meat quality and the growth rate: ‘high marbling meat type’, ‘high growth rate type’ and ‘high marbling meat and high growth rate (intermediate type)’. We hypothesized that paternal line of donor may affect superovulatory response. One hundred and forty superstimulations were performed on 56 Japanese Black heifers, and data on superovulatory response and embryo collection were analyzed. Japanese Black donors used in this study were from the following 4 paternal lines: Kedaka (large-framed with high growth rate;; n=9, 30 times), Fujiyoshi (intermediate type;; n=22, 47 times), Shigekane (high marbling meat type;; n=13, 40 times), and Tajiri (high marbling meat type and small-frame with slow growth rate;; n=12, 23 times). Donors were synchronized using a CIDR-B (EAZI-BREED, InterAg, NZ) for 8 to 12 days, and 500μg PGF analog (Resipron-C; Teikoku Zouki, Japan or Clopromate-C; Sumitomo, Japan) administered at CIDR removal. Superstimulation was initiated on Day 10 (Day 0=day of estrus) of the synchronized cycle;; FSH (Antrin R10;; Denka, Japan) was administered twice daily for 4 days with decreasing doses for a total of 28 Armour units FSH. PGF analog was administered in the morning on the last day of FSH treatment. Donors were given 50 or 100μg GnRH analog (Sporunen, Denka, or Conceral, Takeda Schering prau, Japan) at the time of estrus detection, and were inseminated 12h after the onset of estrus. Embryos were recovered on Day 7 after AI. The numbers of CL and follicles were recorded with transrectal ultrasonography immediately after embryo recovery. Embryos were classified according to the IETS Manual. Data were analyzed by Kruskal-Wallis test combined with Scheffe’s multiple comparison test. There were no significant differences in CL numbers among paternal lines: Kedaka (9.5±4.2), Fujiyoshi (8.5±5.1), Shigekane (7.8±5.0) and Tajiri (8.6±4.1). Mean number of recovered ova/embryos per donor was significantly (P<0.05) higher in the Kedaka line (8.4±5.1) than in the Fujiyoshi (4.9±4.1) and Shigekane (5.5±7.0) lines. The percentages of viable embryos was greater (P<0.05) in the Fujiyoshi (73.7%) and Shigekane lines (62.8%) than in the Tajiri line (50.9%), whereas the percentage of unfertilized oocytes was significantly (P<0.05) higher in the Tajiri line (41.5%) than in the Fujiyoshi (17.5%) or Shigekane (26.1%) lines. The percentages of freezeable and transferable embryos were not significantly different among paternal lines. Data suggest that the paternal line had an effect on the superstimulatory response in Japanese Black heifers, and especially the number and percentage of viable embryos per donor.
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