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Nakayama M, Ueta E, Yoshida M, Shimizu Y, Tokuda A, Sone Y, Nomi Y, Otsuka Y. Analysis of an antioxidative defence system of hydrogen peroxide-treated pancreatic islet-derived 1.1B4 cells and siRNA targeting NR4A3-treated cells by microarray. Redox Rep 2023; 28:2247150. [PMID: 37581334 PMCID: PMC10435006 DOI: 10.1080/13510002.2023.2247150] [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] [Subscribe] [Scholar Register] [Indexed: 08/16/2023] Open
Abstract
Pancreatic islet β-cells weaken under oxidative stress. In this study, human pancreatic islet-derived 1.1B4 cells were exposed to H2O2 and analysed using a human microarray, which revealed that heme oxygenase 1 (HMOX1), glutamate-cysteine ligase, early growth response 1, nuclear receptor subfamily 4 group A member 3 (NR4A3) and jun B proto-oncogene were upregulated, whereas superoxide dismutase 1 and catalase were not. Expression of NR4A3 rapidly increased after H2O2 addition, and the 1.1B4 cells treated with siRNA targeting NR4A3 became sensitive to H2O2; further, HMOX1 expression was strongly inhibited, suggesting that NR4A3 is an oxidative stress-responsive transcription factor that functions through HMOX1 expression in pancreatic islet β-cells. Expression of cyclin E1 and cyclin-dependent kinase 1 was also inhibited by siRNAs targeting NR4A3.
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Affiliation(s)
- Motoko Nakayama
- Department of Life Science, Graduate School, Ochanomizu University, Tokyo, Japan
| | - Etsuko Ueta
- School of Health Science, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Mitsuru Yoshida
- Department of Life Science, Graduate School, Ochanomizu University, Tokyo, Japan
| | - Yuri Shimizu
- Department of Life Science, Graduate School, Ochanomizu University, Tokyo, Japan
- Department of Food Business, Nihon University, Kanagawa, Japan
| | - Atsuko Tokuda
- Department of Life Science, Graduate School, Ochanomizu University, Tokyo, Japan
| | - Yasuko Sone
- Department of Life Science, Graduate School, Ochanomizu University, Tokyo, Japan
- Department of Health and Nutrition, Takasaki University of Health and Welfare, Gunma, Japan
| | - Yuri Nomi
- Department of Life Science, Graduate School, Ochanomizu University, Tokyo, Japan
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Y. Otsuka
- Department of Life Science, Graduate School, Ochanomizu University, Tokyo, Japan
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Takaoka H, Otsuka Y, Fukuda M, Low VL, Ya'cob Z. Morphological redescription of Simulium takahasii (Rubtsov), the first species of the subgenus Wilhelmia Enderlein (Diptera: Simuliidae) recognized in East Asia. Trop Biomed 2023; 40:266-272. [PMID: 37650416 DOI: 10.47665/tb.40.2.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Simulium takahasii (Rubtsov), which was originally described from Japan, and recorded from Korea and China, is the first among the 19 species of the subgenus Wilhelmia Enderlein recorded from East Asia. It is striking in mating, blood-feeding and ovipositing in captivity and in experimentally transmitting Dirofilaria immitis (Leidy) and Brugia pahangi (Buckley & Edeson), and it is a severe biter of cattle and horses, rarely of humans. Nevertheless, updated information about its morphological characteristics was lacking, making comparisons with related species described from China difficult, since species of the subgenus Wilhelmia are almost indistinguishable from one another, in particular, in their female terminalia, male genitalia and most of larval features. In this study, as many morphological characteristics as possible of S. takahasii based on specimens from Japan are redescribed. New information about many features of this species including the length of the female sensory vesicle against the third palpal segment, number of male upper-eye (large) facets, arrangement of the eight pupal gill filaments, presence or absence of tiny dark setae on the dorsum of the larval abdomen and the number of rows and hooklets of the larval posterior circlet will be useful in evaluating the species status of several Wilhelmia species in China including the species regarded as S. takahasii.
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Affiliation(s)
- H Takaoka
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Y Otsuka
- International Center for Island Studies, Kagoshima University, Korimoto 1-21-24, Kagoshima, 890-8580 Japan
| | - M Fukuda
- Institute for Research Management, Oita University, Idaigaoka 1-1, Hasama, Yufu City, Oita, 879-5593, Japan
| | - V L Low
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Z Ya'cob
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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Takaoka H, Otsuka Y, Fukuda M, Low VL, Ya'cob Z. Morphological and genetic analyses of Simulium (Gomphostilbia) okinawense Takaoka and S. (G.) tokarense Takaoka (Diptera: Simuliidae) from the Nansei Islands, Japan: redescription and transfer from the S. ceylonicum species-group to the S. asakoae species-group. Trop Biomed 2023; 40:88-100. [PMID: 37356008 DOI: 10.47665/tb.40.1.007] [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: 06/27/2023]
Abstract
Simulium (Gomphostilbia) okinawense Takaoka and S. (G.) tokarense Takaoka, both from the Nansei Islands, Japan, were morphologically reexamined and genetically analysed by using the COI gene sequences. The female, male, pupa and mature larva of the two species are redescribed. Morphological reexamination shows that both species are more similar to species in the S. asakoae species-group than to those in the S. ceylonicum species-group, by having a medium-long female sensory vesicle, yellow tuft hairs (S. (G.) okinawense) or yellow tuft hairs mixed with a few to several dark hairs (S. (G.) tokarense) at the base of the radial vein in the female and male, and medium-long larval postgenal cleft. However, the body of the male ventral plate (viewed ventrally) is parallel-sided (S. (G.) okinawense) or parallelsided or slightly narrowed (S. (G.) tokarense) and not emarginated basally, differing from those of most species in the S. asakoae species-group. Our genetic analysis shows that S. (G.) tokarense is in the S. asakoae species-group, and S. (G.) okinawense formed a separate sister clade with other members of the S. asakoae species-group with high bootstrap support. From the results of morphological and genetic analysis combined, S. (G.) okinawense and S. (G.) tokarense are transferred from the S. ceylonicum species-group to the S. asakoae species-group.
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Affiliation(s)
- H Takaoka
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Y Otsuka
- International Center for Island Studies, Kagoshima University, Korimoto 1-21-24, Kagoshima, 890-8580 Japan
| | - M Fukuda
- Institute for Research Management, Oita University, Idaigaoka 1-1, Hasama, Yufu City, Oita, 879-5593, Japan
| | - V L Low
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Z Ya'cob
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
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Otsuka Y, Ishii M, Nakamura T, Tsujita K, Fujita H, Matoba T, Kohro T, Kabutoya T, Kario K, Kiyosue A, Mizuno Y, Nakayama M, Miyamoto Y, Sato H, Nagai R. Impact of BNP level in patients with heart failure on major bleeding events after percutaneous coronary intervention. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Aims
The Academic Research Consortium for High Bleeding Risk (ARC-HBR) presents a bleeding risk assessment in antithrombotic therapy for patients post percutaneous coronary intervention (PCI). In Japanese patients, heart failure (HF), peripheral vascular disease, and frailty are established as bleeding risk factors in addition to ARC-HBR. However, it is unknown whether left ventricular function or severity of HF is associated with HBR. The aim of this study was to investigate the association between the severity of HF measured by BNP and future bleeding events after PCI.
Methods
Clinical Deep Data Accumulation System (CLIDAS), a multicenter database with 7 tertiary medical hospitals in JAPAN, was developed to collect data directly for patient characteristics, medications, laboratory test, physiological test, cardiac catheterization and PCI treatment in electronic medical records using Standardized Structured Medical Information eXchange Extended Storage (SS-MIX). This retrospective analysis using CLIDAS database included 7160 patients who underwent PCI during April 2014 and March 2020 in the participating hospitals and also who have completed 3-year follow-up were divided into two groups: No HF (n=6645) and HF (n=515). HF patients were furthermore divided based on high BNP (≥100 pg/ml) group (n=384) and low BNP (<100 pg/ml) group (n=131). Primary outcome was defined as bleeding events according to the moderate and severe bleeding in the GUSTO classification. In addition, secondary endpoint was major adverse cardiovascular events (MACE) defined as a composite of cardiac death, myocardial infraction and stroke.
Results
Multivariable Cox regression adjusted for age, sex, BMI, acute coronary syndrome, hypertension, diabetes, dyslipidemia, chronic kidney disease, hemodialysis, previous PCI, previous coronary artery bypass grafting, prior myocardial infraction, prior stroke, prior atrial fibrillation, prior PVD, left main trunk disease, multivessel disease, and anticoagulants use showed that HF with high BNP was significantly associated with bleeding events (hazard ratio [HR], 1.66; 95% confidence interval [CI], 1.10–2.50), MACE (HR, 2.16; 95% CI, 1.60–2.90), and all-cause death (HR, 1.74; 95% CI, 1.30–2.33), but not HF with low BNP.
Conclusions
The CLIDAS real-world database revealed that HF with high BNP was associated with future bleeding events, suggesting that bleeding risk might be altered depending on severity of HF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Otsuka
- Kumamoto University Hospital , Kumamoto , Japan
| | - M Ishii
- Kumamoto University Hospital , Kumamoto , Japan
| | - T Nakamura
- Kumamoto University Hospital , Kumamoto , Japan
| | - K Tsujita
- Kumamoto University Hospital , Kumamoto , Japan
| | - H Fujita
- Jichi Medical University , Tochigi , Japan
| | - T Matoba
- Kyushu University , Fukuoka , Japan
| | - T Kohro
- Jichi Medical University , Tochigi , Japan
| | - T Kabutoya
- Jichi Medical University , Tochigi , Japan
| | - K Kario
- Jichi Medical University , Tochigi , Japan
| | | | - Y Mizuno
- University of Tokyo , Tokyo , Japan
| | | | - Y Miyamoto
- National Cerebral and Cardiovascular Center Hospital , Osaka , Japan
| | - H Sato
- Precision K.K. , Tokyo , Japan
| | - R Nagai
- Jichi Medical University , Tochigi , Japan
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Affiliation(s)
- Y Saishoji
- Address correspondence to Dr Y. Saishoji, Department of General Internal Medicine, National Hospital Organization Nagasaki Medical Center, Kubara 1001-1, Nagasaki, Omura 856-8562, Japan.
| | - Y Izumi
- From the Department of General Internal Medicine, National Hospital Organization Nagasaki Medical Center, Kubara 2-1001-1, Omura, Nagasaki 856-8562, Japan
| | - Y Otsuka
- From the Department of General Internal Medicine, National Hospital Organization Nagasaki Medical Center, Kubara 2-1001-1, Omura, Nagasaki 856-8562, Japan
| | - H Yura
- Department of Respiratory disease, National Hospital Organization Nagasaki Medical Center, Kubara 2-1001-1, Omura, Nagasaki 856-8562, Japan
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Nagentrau M, Mohd Tobi AL, Jamian S, Otsuka Y, Hussin R. Delamination-fretting wear failure evaluation at HAp-Ti-6Al-4V interface of uncemented artificial hip implant. J Mech Behav Biomed Mater 2021; 122:104657. [PMID: 34246851 DOI: 10.1016/j.jmbbm.2021.104657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/06/2021] [Accepted: 06/24/2021] [Indexed: 10/20/2022]
Abstract
Present research aims to develop a finite element computational model to examine delamination-fretting wear behaviour that can suitably mimic actual loading conditions at HAp-Ti-6Al-4V interface of uncemented hip implant femoral stem component. A simple finite element contact configuration model based on fretting fatigue experimental arrangement subjected to different mechanical and tribological properties consist of contact pad (bone), HAp coating and Ti-6Al-4V substrate are developed using adaptive wear modelling approach adopting modified Archard wear equation to be examined under static simulation. The developed finite element model is validated and verified with reported literatures. The findings revealed that significant delamination-fretting wear is recorded at contact edge (leading edge) as a result of substantial contact pressure and contact slip driven by stress singularity effect. The delamination-fretting wear behaviour is promoted under higher delamination length, lower normal loading with higher fatigue loading, increased porous (cancellous) and cortical bone elastic modulus with higher cycle number due to significant relative slip amplitude as the result of reduced interface rigidity. Tensile-compressive condition (R=-1) experiences most significant delamination-fretting wear behaviour (8 times higher) compared to stress ratio R=0.1 and R=10.
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Affiliation(s)
- M Nagentrau
- School of Computer Science and Engineering, Faculty of Innovation and Technology, Taylor's University, Taylor's Lakeside Campus, Selangor, Subang Jaya, Malaysia; Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia.
| | - A L Mohd Tobi
- Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia
| | - S Jamian
- Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia
| | - Y Otsuka
- Department of Mechanical Engineering, Nagaoka University of Technology, Japan
| | - R Hussin
- Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia
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Takaoka H, Fukuda M, Otsuka Y, Iwasa M. A male black fly of Simulium (Simulium) iwatense (Shiraki) (Diptera: Simuliidae) with genitalia-like appendages on abdominal segment 8. Trop Biomed 2021; 38:68-71. [PMID: 33973575 DOI: 10.47665/tb.38.2.040] [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: 11/21/2022]
Abstract
A rare non-sex mosaic abnormality represented by genitalia-like appendages on the ventral surface of abdominal segment 8 of a male black fly collected in Hokkaido, Japan, is reported. The appendages consist of a pair of style-like projections each arising from a coxite-like base, inverted-Y shaped ventral plate-like structure, and isolated round structure. This male was morphologically and molecularly identified as an abnormal form of S. (S.) iwatense (Shiraki), the only species in the Simulium (Simulium) ornatum species-group in Japan, although certain morphological characteristics of this male including the reduced number of uppereye (large) facets and elongate cerci are different from those of S. (S.) iwatense.
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Affiliation(s)
- H Takaoka
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Higher Institution Centre of Excellence (HICoE), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - M Fukuda
- Institute for Research Promotion, Oita University, Idaigaoka 1-1, Hasama, Yufu, Oita 879-5593, Japan
| | - Y Otsuka
- Research Center for the Pacific Islands, Kagoshima University, Korimoto 1-21-24, Kagoshima, Kagoshima 890-8580, Japan
| | - M Iwasa
- Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
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Kamata K, Watanabe T, Minaga K, Hara A, Sekai I, Otsuka Y, Yoshikawa T, Park AM, Kudo M. Gut microbiome alterations in type 1 autoimmune pancreatitis after induction of remission by prednisolone. Clin Exp Immunol 2020; 202:308-320. [PMID: 32880930 DOI: 10.1111/cei.13509] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 08/12/2020] [Accepted: 08/23/2020] [Indexed: 12/15/2022] Open
Abstract
Although increasing evidence demonstrates the association between intestinal dysbiosis and pancreatic diseases such as chronic pancreatitis and pancreatic cancer, it remains largely unknown whether intestinal dysbiosis is involved in the immunopathogenesis of autoimmune pancreatitis (AIP). Recently, we found that intestinal dysbiosis mediates experimental AIP via the activation of plasmacytoid dendritic cells (pDCs), which can produce interferon (IFN)-α and interleukin (IL)-33. However, candidate intestinal bacteria, which promote the development of AIP, have not been identified. Fecal samples were obtained from type 1 AIP patients before and after prednisolone (PSL) treatment and subjected to 16S ribosomal RNA sequencing to evaluate the composition of intestinal bacteria. Induction of remission by PSL was associated with the complete disappearance of Klebsiella species from feces in two of the three analyzed patients with type 1 AIP. To assess the pathogenicity of Klebsiella species, mild experimental AIP was induced in MRL/MpJ mice by repeated injections of 10 μg of polyinosinic-polycytidylic acid [poly(I:C)], in combination with oral administration of heat-killed Klebsiella pneumoniae. The AIP pathology score was significantly higher in MRL/MpJ mice that received both oral administration of heat-killed K. pneumoniae and intraperitoneal injections of poly(I:C) than in those administered either agent alone. Pancreatic accumulation of pDCs capable of producing large amounts of IFN-α and IL-33 was also significantly higher in mice that received both treatments. These data suggest that intestinal colonization by K. pneumoniae may play an intensifying role in the development of type 1 AIP.
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Affiliation(s)
- K Kamata
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - T Watanabe
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - K Minaga
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - A Hara
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - I Sekai
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - Y Otsuka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - T Yoshikawa
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - A-M Park
- Department of Microbiology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
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Affiliation(s)
- Y Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - M Yasuda
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - K Tokumasu
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - K Hasegawa
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - F Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
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Kato R, Fukushima H, Kijima T, Yoshida S, Yokoyama M, Ishioka J, Matsuoka Y, Saito K, Otsuka Y, Koga F, Yano M, Tsukamoto T, Masuda H, Okuno T, Yonese J, Nagahama K, Kamata S, Noro A, Kageyama Y, Tsujii T, Morimoto S, Fujii Y. Predictive performance of the qSOFA score for in-hospital mortality of obstructive pyelonephritis patients: A multi-institutional study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33590-4] [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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Kakehi E, Kotani K, Otsuka Y, Fukuyasu Y, Hashimoto Y, Sakurai S, Hirotani A, Simizu K, Fujita R, Shoji K, Adachi S, Matsumura M. Response to: Kimura's disease: effects of age on clinical presentation. QJM 2020; 113:383. [PMID: 32091606 DOI: 10.1093/qjmed/hcaa035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- E Kakehi
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - K Kotani
- Center for Community Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Y Otsuka
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - Y Fukuyasu
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - Y Hashimoto
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - S Sakurai
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - A Hirotani
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - K Simizu
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - R Fujita
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - K Shoji
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - S Adachi
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori 680-8501, Japan
| | - M Matsumura
- Center for Community Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
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Kakehi E, Kotani K, Otsuka Y, Fukuyasu Y, Hashimoto Y, Sakurai S, Hirotani A, Simizu K, Fujita R, Shoji K, Adachi S, Matsumura M. Kimura's disease: effects of age on clinical presentation. QJM 2020; 113:336-345. [PMID: 31800058 DOI: 10.1093/qjmed/hcz312] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 11/11/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Kimura's disease (KD) is known to be dominant among young Asian men, but it can also occur in middle- and advanced-aged people. The clinical characteristics of KD, especially by age, are not well known. AIM This study was performed to investigate the effects of age on the clinical characteristics of KD. DESIGN We conducted a case series study. METHODS All case studies of patients diagnosed with KD were collected via a PubMed search of studies published until August 2018. The data were analyzed by age group. RESULTS In total, 215 studies were reviewed (238 patients; mean age of 36 years). The male:female ratio was 4:1 overall, 17:1 in patients aged <20 years, 4:1 in patients aged 20-39 years and 2:1 in patients aged ≥40 years (P = 0.01). The percentage of patients with pruritus was 15.4% overall, 3.8% in patients aged <20 years, 15.5% in patients aged 20-39 years and 21.7% in patients aged ≥40 years (P = 0.02). The time to diagnosis was 5.3 years overall, 3.2 years in patients aged <20 years, 4.7 years in patients aged 20-39 years and 7.1 years in patients aged ≥40 years (P < 0.01). CONCLUSIONS The proportion of female patients affected the incidence of pruritus, and the time to diagnosis increased as the patients' age increased. There were no significant age-related differences in region/race, complications, multiplicity, laterality, anatomical distribution, maximum size, eosinophil count, immunoglobulin E level, initial treatment, recurrence or outcomes. This may be useful information for the diagnosis of KD.
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Affiliation(s)
- E Kakehi
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - K Kotani
- Center for Community Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Y Otsuka
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - Y Fukuyasu
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - Y Hashimoto
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - S Sakurai
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - A Hirotani
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - K Simizu
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - R Fujita
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - K Shoji
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - S Adachi
- Department of General Medicine, Tottori Municipal Hospital, 1-1 Matoba, Tottori-City, Tottori, Japan
| | - M Matsumura
- Center for Community Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
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Matsumoto J, Takada S, Kinugawa S, Furihata T, Nambu H, Kakutani N, Tsuda M, Fukushima A, Yokota T, Tanaka S, Takahashi H, Watanabe M, Hatakeyama S, Matsumoto M, Nakayama KI, Otsuka Y, Sabe H, Tsutsui H, Anzai T. Brain-Derived Neurotrophic Factor Improves Limited Exercise Capacity in Mice With Heart Failure. Circulation 2019; 138:2064-2066. [PMID: 30372141 DOI: 10.1161/circulationaha.118.035212] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Junichi Matsumoto
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shingo Takada
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.,Cancer Pathology (S. Tanaka), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shintaro Kinugawa
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Takaaki Furihata
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hideo Nambu
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Naoya Kakutani
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masaya Tsuda
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Arata Fukushima
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Takashi Yokota
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | | | | | - Masashi Watanabe
- Biochemistry (M.W., S.H.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Shigetsugu Hatakeyama
- Biochemistry (M.W., S.H.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masaki Matsumoto
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation (M.M., K.I.N.), Kyushu University, Fukuoka, Japan
| | - Keiichi I Nakayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation (M.M., K.I.N.), Kyushu University, Fukuoka, Japan
| | - Yutaro Otsuka
- Molecular Biology (Y.O., H.S.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hisataka Sabe
- Molecular Biology (Y.O., H.S.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroyuki Tsutsui
- Department of Molecular Biology, Yokohama City University Graduate School of Medical Science, Japan (H. Takahashi).,Department of Cardiovascular Medicine, Faculty of Medical Sciences (H. Tsutsui), Kyushu University, Fukuoka, Japan
| | - Toshihisa Anzai
- Departments of Cardiovascular Medicine (J.M., S. Takada, S.K., T.F., H.N., N.K., M.T., A.F., T.Y., T.A.), Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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14
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Affiliation(s)
- Y Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kitaku, Okayama, Japan
| | - K Harada
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kitaku, Okayama, Japan
| | - F Otsuka
- Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kitaku, Okayama, Japan
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15
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Hagiwara A, Otsuka Y, Hori M, Tachibana Y, Yokoyama K, Fujita S, Andica C, Kamagata K, Irie R, Koshino S, Maekawa T, Chougar L, Wada A, Takemura MY, Hattori N, Aoki S. Improving the Quality of Synthetic FLAIR Images with Deep Learning Using a Conditional Generative Adversarial Network for Pixel-by-Pixel Image Translation. AJNR Am J Neuroradiol 2019; 40:224-230. [PMID: 30630834 DOI: 10.3174/ajnr.a5927] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/15/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE Synthetic FLAIR images are of lower quality than conventional FLAIR images. Here, we aimed to improve the synthetic FLAIR image quality using deep learning with pixel-by-pixel translation through conditional generative adversarial network training. MATERIALS AND METHODS Forty patients with MS were prospectively included and scanned (3T) to acquire synthetic MR imaging and conventional FLAIR images. Synthetic FLAIR images were created with the SyMRI software. Acquired data were divided into 30 training and 10 test datasets. A conditional generative adversarial network was trained to generate improved FLAIR images from raw synthetic MR imaging data using conventional FLAIR images as targets. The peak signal-to-noise ratio, normalized root mean square error, and the Dice index of MS lesion maps were calculated for synthetic and deep learning FLAIR images against conventional FLAIR images, respectively. Lesion conspicuity and the existence of artifacts were visually assessed. RESULTS The peak signal-to-noise ratio and normalized root mean square error were significantly higher and lower, respectively, in generated-versus-synthetic FLAIR images in aggregate intracranial tissues and all tissue segments (all P < .001). The Dice index of lesion maps and visual lesion conspicuity were comparable between generated and synthetic FLAIR images (P = 1 and .59, respectively). Generated FLAIR images showed fewer granular artifacts (P = .003) and swelling artifacts (in all cases) than synthetic FLAIR images. CONCLUSIONS Using deep learning, we improved the synthetic FLAIR image quality by generating FLAIR images that have contrast closer to that of conventional FLAIR images and fewer granular and swelling artifacts, while preserving the lesion contrast.
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Affiliation(s)
- A Hagiwara
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.) .,Department of Radiology (A.H., R.I., S.K., T.M.), Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Y Otsuka
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.).,Milliman Inc (Y.O.). Tokyo, Japan
| | - M Hori
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.)
| | - Y Tachibana
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.).,Applied MRI Research (Y.T.), Department of Molecular Imaging and Theranostics, National Institute of Radiological Sciences, Chiba, Japan
| | - K Yokoyama
- Neurology (K.Y., N.H.), Juntendo University School of Medicine, Tokyo, Japan
| | - S Fujita
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.)
| | - C Andica
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.)
| | - K Kamagata
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.)
| | - R Irie
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.).,Department of Radiology (A.H., R.I., S.K., T.M.), Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - S Koshino
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.).,Department of Radiology (A.H., R.I., S.K., T.M.), Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - T Maekawa
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.).,Department of Radiology (A.H., R.I., S.K., T.M.), Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - L Chougar
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.).,Department of Radiology (L.C.), Hopital Saint-Joseph, Paris, France; and Department of Radiological Sciences
| | - A Wada
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.)
| | - M Y Takemura
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.)
| | - N Hattori
- Neurology (K.Y., N.H.), Juntendo University School of Medicine, Tokyo, Japan
| | - S Aoki
- From the Departments of Radiology (A.H., Y.O., M.H., Y.T., S.F., C.A., K.K., R.I., S.K., T.M., L.C., A.W., M.Y.T., S.A.)
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16
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Tenma T, Mitsuyama H, Watanabe M, Kakutani N, Otsuka Y, Mizukami K, Kamada R, Takahashi M, Takada S, Sabe H, Tsutsui H, Yokoshiki H. Small-conductance Ca2+-activated K+ channel activation deteriorates hypoxic ventricular arrhythmias via CaMKII in cardiac hypertrophy. Am J Physiol Heart Circ Physiol 2018; 315:H262-H272. [DOI: 10.1152/ajpheart.00636.2017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The molecular and electrophysiological mechanisms of acute ischemic ventricular arrhythmias in hypertrophied hearts are not well known. We hypothesized that small-conductance Ca2+-activated K+ (SK) channels are activated during hypoxia via the Ca2+/calmodulin-dependent protein kinase II (CaMKII)-dependent pathway. We used normotensive Wistar-Kyoto (WKY) rats and spontaneous hypertensive rats (SHRs) as a model of cardiac hypertrophy. The inhibitory effects of SK channels and ATP-sensitive K+ channels on electrophysiological changes and genesis of arrhythmias during simulated global hypoxia (GH) were evaluated. Hypoxia-induced abbreviation of action potential duration (APD) occurred earlier in ventricles from SHRs versus. WKY rats. Apamin, a SK channel blocker, prevented this abbreviation in SHRs in both the early and delayed phase of GH, whereas in WKY rats only the delayed phase was prevented. In contrast, SHRs were less sensitive to glibenclamide, a ATP-sensitive K+ channel blocker, which inhibited the APD abbreviation in both phases of GH in WKY rats. SK channel blockers (apamin and UCL-1684) reduced the incidence of hypoxia-induced sustained ventricular arrhythmias in SHRs but not in WKY rats. Among three SK channel isoforms, SK2 channels were directly coimmunoprecipitated with CaMKII phosphorylated at Thr286 (p-CaMKII). We conclude that activation of SK channels leads to the APD abbreviation and sustained ventricular arrhythmias during simulated hypoxia, especially in hypertrophied hearts. This mechanism may result from p-CaMKII-bound SK2 channels and reveal new molecular targets to prevent lethal ventricular arrhythmias during acute hypoxia in cardiac hypertrophy. NEW & NOTEWORTHY We now show a new pathophysiological role of small-conductance Ca2+-activated K+ channels, which shorten the action potential duration and induce ventricular arrhythmias during hypoxia. We also demonstrate that small-conductance Ca2+-activated K+ channels interact with phosphorylated Ca2+/calmodulin-dependent protein kinase II at Thr286 in hypertrophied hearts.
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Affiliation(s)
- Taro Tenma
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Hirofumi Mitsuyama
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Masaya Watanabe
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Naoya Kakutani
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Yutaro Otsuka
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kazuya Mizukami
- Department of Cardiovascular Medicine, National Hospital Organization Hokkaido Medical Center, Sapporo, Hokkaido, Japan
| | - Rui Kamada
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Masayuki Takahashi
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Shingo Takada
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyusyu University Graduate School of Medicine, Fukuoka, Kyusyu, Japan
| | - Hisashi Yokoshiki
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
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17
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Affiliation(s)
- A Onishi
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Y Otsuka
- Division of Neurology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - N Morita
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - A Morinobu
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
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18
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Oikawa T, Otsuka Y, Onodera Y, Horikawa M, Handa H, Hashimoto S, Suzuki Y, Sabe H. Necessity of p53-binding to the CDH1 locus for its expression defines two epithelial cell types differing in their integrity. Sci Rep 2018; 8:1595. [PMID: 29371630 PMCID: PMC5785525 DOI: 10.1038/s41598-018-20043-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 01/12/2018] [Indexed: 12/19/2022] Open
Abstract
TP53 mutation (i.e., loss of normal-p53) may evoke epithelial-mesenchymal transition (EMT), which was previously attributed to loss of certain miRNAs. However, not all epithelial cells undergo EMT upon TP53 mutation, and the p53-miRNA axis may not fully explain p53 function in epithelial integrity. We here show two modes of epithelial integrity: one involves p53-binding to a nucleotide region and the other does not. In the former, p53 binds to the CDH1 (encoding E-cadherin) locus to antagonize EZH2-mediated H3K27 trimethylation (H3K27me3) to maintain high levels of acetylation of H3K27 (H3K27ac). In the latter, the same locus is not highly acetylated at H3K27, and does not allow p53-binding, nor needs to antagonize EZH2. We moreover demonstrated that although the CDH1 locus in the p53-independent cells, but not in fibroblasts, becomes high-H3K27ac by butyrate and allows p53-biniding, their CDH1 expression does not become dependent on p53. Our results identified novel modes of the epithelial integrity, in which the same epithelial-specific gene locus exhibits different requirement for p53 with different histone modifications among different epithelial cells to warrant its expression.
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Affiliation(s)
- Tsukasa Oikawa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yutaro Otsuka
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yasuhito Onodera
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Mei Horikawa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Haruka Handa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Shigeru Hashimoto
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yutaka Suzuki
- Laboratory of Functional Genomics, Department of Medical Genome Sciences, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.
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Otsuka Y, Oikawa T, Yoshino H, Hashimoto S, Handa H, Yamamoto H, Hashimoto A, Sabe H. Frequent overexpression of AMAP1, an Arf6 effector in cell invasion, is characteristic of the MMTV-PyMT rather than the MMTV-Neu human breast cancer model. Cell Commun Signal 2018; 16:1. [PMID: 29329590 PMCID: PMC5795291 DOI: 10.1186/s12964-017-0212-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [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: 08/31/2017] [Accepted: 12/28/2017] [Indexed: 01/31/2023] Open
Abstract
Background The small GTPase Arf6 and its downstream effector AMAP1 (also called ASAP1/DDEF1) constitute a signaling pathway promoting cell invasion, in which AMAP1 interacts with several different proteins, including PRKD2, EPB41L5, paxillin, and cortactin. Components of this pathway are often overexpressed in human breast cancer cells, to be correlated with poor prognosis of the patients, whereas overexpression of the Arf6 pathway did not correlate with the four main molecular classes of human breast tumors. In this pathway, receptor tyrosine kinases, including EGFR and Her2, activate Arf6 via GEP100. MMTV-PyMT mice and MMTV-Neu mice are well-established models of human breast cancer, and exhibit the early dissemination and the lung metastasis, by utilizing protein tyrosine phosphorylation for oncogenesis. PyMT-tumors and Neu-tumors are known to have overlapping gene expression profiles, which primarily correspond to the luminal B-type of human mammary tumors, although they differ in the time necessary for tumor onset and metastasis. Given the common usage of protein tyrosine phosphorylation, as well as the frequent use of these animal models for studying breast cancer at the molecular level, we here investigated whether mammary tumors in these mouse models utilize the Arf6-based pathway for invasion. Methods Expression levels of Arf6, AMAP1, and GEP100 were analyzed in PyMT-tumors and Neu-tumors by western blotting. Expression of Arf6 and AMAP1 was also analyzed by immunohistochemistry. The involvement of AMAP1 in invasion, and the possible correlation of its high expression levels with cancer mesenchymal properties were also investigated. Results We found that PyMT-tumors, but not Neu-tumors, frequently overexpress AMAP1 and use it for invasion, whereas both types of tumors expressed Arf6 and GEP100 at different levels. High levels of the AMAP1 expression among PyMT-tumor cells were frequently correlated with loss of the epithelial marker CK8 and also with expression of the mesenchymal marker vimentin both at the primary sites and at sites of the lung metastases. Conclusions PyMT-tumors appear to frequently utilize the Arf6-based invasive machinery, whereas Neu-tumors do not. Our results suggest that MMTV-PyMT mice, rather than MMTV-Neu mice, are useful to study the Arf6-based mammary tumor malignancies, as a representative model of human breast cancer. Electronic supplementary material The online version of this article (10.1186/s12964-017-0212-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yutaro Otsuka
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Tsukasa Oikawa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.
| | - Hinako Yoshino
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Shigeru Hashimoto
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Haruka Handa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Hiroki Yamamoto
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Ari Hashimoto
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.
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Hiraoka K, Otsuka Y, Ishikawa T, Kawai K, Harada T. Effect the sperm selection magnification (400x vs 1,200x) on fertilization results and embryo development in human Piezo-ICSI. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nakamura K, Naito S, Sasaki T, Take Y, Kitagawa Y, Otsuka Y, Motoda H, Yamashita E, Kumagai K, Tomita Y, Koyama K, Oshima S. P903Post-ablation thromboembolisms in patients undergoing balloon-based ablation of atrial fibrillation and receiving direct oral anticoagulants: a comparison between cryoballoon and hotballoon ablation. Europace 2017. [DOI: 10.1093/ehjci/eux151.085] [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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Otsuka Y, Sato H, Oikawa T, Onodera Y, Nam JM, Hashimoto A, Fukunaga K, Hatanaka KC, Hatanaka Y, Matsuno Y, Fukuda S, Sabe H. High expression of EPB41L5, an integral component of the Arf6-driven mesenchymal program, correlates with poor prognosis of squamous cell carcinoma of the tongue. Cell Commun Signal 2016; 14:28. [PMID: 27871329 PMCID: PMC5117685 DOI: 10.1186/s12964-016-0151-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 09/06/2016] [Accepted: 11/15/2016] [Indexed: 01/05/2023] Open
Abstract
Background Squamous cell carcinoma of the tongue (tongue SCC) is a major subtype of head and neck squamous cell carcinoma (HNSCC), which is an intractable cancer under current therapeutics. ARF6 and its effector AMAP1 are often overexpressed in different types of cancers, such as breast cancer and renal cancer, and in these cancers, AMAP1 binds to EPB41L5 to promote invasion, metastasis, and drug resistance. EPB41L5 is a mesenchymal-specific protein, normally induced during epithelial-mesenchymal transition (EMT) to promote focal adhesion dynamics. Similarly to breast cancer and renal cancer, the acquisition of mesenchymal phenotypes is the key process that drives the malignancy of HNSCC. We previously showed that the overexpression of AMAP1 in tongue SCC is statistically correlated with the poor outcome of patients. In this study, we examined whether tongue SCC also expresses EPB41L5 at high levels. Results Immunohistochemical staining of clinical specimens of tongue SCC demonstrated that high expression levels of EPB41L5 statistically correlate with poor disease-free survival and poor overall survival rates of patients. The tongue SCC cell line SCC-9, which overexpress Arf6 and AMAP1, also expressed EPB41L5 at high levels to promote invasiveness, whereas the weakly invasive SCC-25 cells did not express EPB41L5 at notable levels. Among the different EMT-associated transcriptional factors, ZEB1 was previously found to be most crucial in inducing EPB41L5 in breast cancer and renal cancer. In contrast, expression levels of ZEB1 did not correlate with the expression levels of EPB41L5 in tongue SCC, whereas KLF8 and FOXO3 levels showed positive correlations with EPB41L5 levels. Moreover, silencing of EPB41L5 only marginally improved the drug resistance of SCC-9 cells, even when coupled with ionizing radiation. Conclusion Our results indicate that activation of the cancer mesenchymal program in tongue SCC, which leads to EPB41L5 expression, closely correlates with the poor prognosis of patients. However, ZEB1 was not the major inducer of EPB41L5 in tongue SCC, unlike in breast cancer and renal cancer. Thus, processes that trigger the mesenchymal program of tongue SCC, which drives their malignancies, seem to be substantially different from those of other cancers.
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Affiliation(s)
- Yutaro Otsuka
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Hiroki Sato
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan.
| | - Tsukasa Oikawa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yasuhito Onodera
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Jin-Min Nam
- Global Station for Quantum Medical Science and Engineering, Global Institution for Collaborative Research and Education Hokkaido University, Sapporo, Hokkaido, 060-8648, Japan
| | - Ari Hashimoto
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Kiyoshi Fukunaga
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Kanako C Hatanaka
- Department of Surgical Pathology, Hokkaido University Hospital, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yutaka Hatanaka
- Department of Surgical Pathology, Hokkaido University Hospital, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yoshihiro Matsuno
- Department of Surgical Pathology, Hokkaido University Hospital, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Satoshi Fukuda
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, Hokkaido, 060-8638, Japan
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Tanaka N, Kosaka T, Miyazaki Y, Mikami S, Niwa N, Otsuka Y, Minamishima YA, Mizuno R, Kikuchi E, Miyajima A, Sabe H, Okada Y, Uhlén P, Suematsu M, Oya M. Acquired platinum resistance involves epithelial to mesenchymal transition through ubiquitin ligase FBXO32 dysregulation. JCI Insight 2016; 1:e83654. [PMID: 27812537 DOI: 10.1172/jci.insight.83654] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
To identify the molecules involved in epithelial to mesenchymal transition (EMT) in urothelial carcinoma (UC) after acquisition of platinum resistance, here we examined the changes in global gene expression before and after platinum treatment. Four invasive UC cell lines, T24, 5637, and their corresponding sublines T24PR and 5637PR with acquired platinum resistance, were assessed by microarray, and the ubiquitin E3 ligase FBXO32 was newly identified as a negative regulator of EMT in UC tumors after acquisition of platinum resistance. In vitro and in vivo studies showed an intimate relationship between FBXO32 expression and EMT, demonstrating that FBXO32 dysregulation in T24PR cells results in elevated expression of the mesenchymal molecules SNAIL and vimentin and decreased expression of the epithelial molecule E-cadherin. The association between FBXO32 expression and EMT was further validated using clinical samples. Knockdown of MyoD expression, a specific target of FBXO32 polyubiquitination, revealed upregulation of E-cadherin expression and downregulation of SNAIL and vimentin expression in T24PR cells. Comparative genomic hybridization array analysis demonstrated loss of heterozygosity at 8q24.13 in T24PR cells, which harbors FBXO32. Our findings suggest the importance of the association between EMT and ubiquitin-proteasome regulation when tumors develop acquired platinum resistance.
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Affiliation(s)
- Nobuyuki Tanaka
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Takeo Kosaka
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Yasumasa Miyazaki
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Shuji Mikami
- Division of Diagnostic Pathology, Keio University Hospital, Tokyo, Japan
| | - Naoya Niwa
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Yutaro Otsuka
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yoji Andrew Minamishima
- Department of Biochemistry, Keio University School of Medicine, and Japan Agency for Science and Technology (JST), Exploratory Research for Advanced Technology (ERATO), Suematsu Gas Biology Project, Tokyo, Japan
| | - Ryuichi Mizuno
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Eiji Kikuchi
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Akira Miyajima
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yasunori Okada
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Per Uhlén
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, and Japan Agency for Science and Technology (JST), Exploratory Research for Advanced Technology (ERATO), Suematsu Gas Biology Project, Tokyo, Japan
| | - Mototsugu Oya
- Department of Urology, Keio University School of Medicine, Tokyo, Japan
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Hashimoto A, Oikawa T, Hashimoto S, Sugino H, Yoshikawa A, Otsuka Y, Handa H, Onodera Y, Nam JM, Oneyama C, Okada M, Fukuda M, Sabe H. P53- and mevalonate pathway–driven malignancies require Arf6 for metastasis and drug resistance. J Exp Med 2016. [DOI: 10.1084/jem.2135oia33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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26
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Hashimoto A, Oikawa T, Hashimoto S, Sugino H, Yoshikawa A, Otsuka Y, Handa H, Onodera Y, Nam JM, Oneyama C, Okada M, Fukuda M, Sabe H. P53- and mevalonate pathway-driven malignancies require Arf6 for metastasis and drug resistance. J Cell Biol 2016; 213:81-95. [PMID: 27044891 PMCID: PMC4828690 DOI: 10.1083/jcb.201510002] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 03/04/2016] [Indexed: 12/18/2022] Open
Abstract
Drug resistance, metastasis, and a mesenchymal transcriptional program are central features of aggressive breast tumors. The GTPase Arf6, often overexpressed in tumors, is critical to promote epithelial-mesenchymal transition and invasiveness. The metabolic mevalonate pathway (MVP) is associated with tumor invasiveness and known to prenylate proteins, but which prenylated proteins are critical for MVP-driven cancers is unknown. We show here that MVP requires the Arf6-dependent mesenchymal program. The MVP enzyme geranylgeranyl transferase II (GGT-II) and its substrate Rab11b are critical for Arf6 trafficking to the plasma membrane, where it is activated by receptor tyrosine kinases. Consistently, mutant p53, which is known to support tumorigenesis via MVP, promotes Arf6 activation via GGT-II and Rab11b. Inhibition of MVP and GGT-II blocked invasion and metastasis and reduced cancer cell resistance against chemotherapy agents, but only in cells overexpressing Arf6 and components of the mesenchymal program. Overexpression of Arf6 and mesenchymal proteins as well as enhanced MVP activity correlated with poor patient survival. These results provide insights into the molecular basis of MVP-driven malignancy.
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Affiliation(s)
- Ari Hashimoto
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Tsukasa Oikawa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Shigeru Hashimoto
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Hirokazu Sugino
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Ayumu Yoshikawa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Yutaro Otsuka
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Haruka Handa
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Yasuhito Onodera
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
| | - Jin-Min Nam
- Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo 060-8638, Japan
| | - Chitose Oneyama
- Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Masato Okada
- Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Mitsunori Fukuda
- Department of Developmental Biology and Neurosciences, Graduate School of Life Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan
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27
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Ichiyama S, Funasaka Y, Otsuka Y, Takayama R, Kawana S, Saeki H, Kubo A. Effective treatment by glycolic acid peeling for cutaneous manifestation of familial generalized acanthosis nigricans caused by FGFR3 mutation. J Eur Acad Dermatol Venereol 2016; 30:442-5. [PMID: 26818779 DOI: 10.1111/jdv.13580] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/27/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND Acanthosis nigricans (AN) can occur as a cutaneous manifestation of genetic diseases, one of which is associated with activating mutations of the fibroblast growth factor receptor 3 gene (FGFR3). OBJECTIVE We explored familial AN patients with FGFR3 mutations and examined the effectiveness of glycolic acid (GA) peeling in improving their skin manifestations. METHODS Sanger sequencing was performed for the genomic DNA extracted from leucocytes of the family members involving familial AN. GA peeling was carried out for the two patients of familial AN once every 2 weeks. RESULTS Heterozygous c.1949A>C (p.K650T) mutation in FGFR3 was identified for the affected family members examined, whereas the wild-type sequence was found for two unaffected individuals. Hyperpigmentation and coarseness of the skin were improved by GA peeling at regular intervals with few adverse effects. CONCLUSION We diagnosed our cases as familial generalized AN caused by heterozygous c.1949A>C (p.K650T) mutation of FGFR3. We propose that GA peeling is a useful and safe therapeutic option to treat familial AN.
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Affiliation(s)
- S Ichiyama
- Department of Dermatology, Nippon Medical School Hospital, Tokyo, Japan
| | - Y Funasaka
- Department of Dermatology, Nippon Medical School Hospital, Tokyo, Japan
| | - Y Otsuka
- Department of Dermatology, Nippon Medical School Hospital, Tokyo, Japan
| | - R Takayama
- Department of Dermatology, Nippon Medical School Hospital, Tokyo, Japan
| | - S Kawana
- Department of Dermatology, Nippon Medical School Hospital, Tokyo, Japan
| | - H Saeki
- Department of Dermatology, Nippon Medical School Hospital, Tokyo, Japan
| | - A Kubo
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
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28
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Yamazaki N, Uhara H, Fukushima S, Uchi H, Shibagaki N, Kiyohara Y, Tsutsumida A, Namikawa K, Okuyama R, Otsuka Y, Tokudome T. Phase II study of the immune-checkpoint inhibitor ipilimumab plus dacarbazine in Japanese patients with previously untreated, unresectable or metastatic melanoma. Cancer Chemother Pharmacol 2015; 76:969-75. [PMID: 26407818 PMCID: PMC4612320 DOI: 10.1007/s00280-015-2870-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 08/03/2015] [Accepted: 09/06/2015] [Indexed: 11/24/2022]
Abstract
PURPOSE Ipilimumab (IPI), a monoclonal antibody against immune-checkpoint receptor cytotoxic T lymphocyte antigen-4, is designed to enhance antitumor T cell function. IPI 10 mg/kg plus dacarbazine (DTIC) significantly improved overall survival in a phase 3 study involving predominantly Caucasian patients, with an adverse event (AE) profile similar to that of IPI monotherapy. We conducted a single-arm, phase 2 study to evaluate the safety and efficacy of IPI plus DTIC in Japanese patients. METHODS Previously untreated patients with unresectable stage III or IV melanoma received IPI 10 mg/kg plus DTIC 850 mg/m(2) every 3 weeks for four doses (q3w × 4), followed by DTIC q3w × 4 and then IPI every 12 weeks until disease progression or intolerable toxicity. RESULTS All 15 treated patients reported drug-related AEs, the most common of which were increases in alanine aminotransferase (n = 12, 80 %) and aspartate aminotransferase (n = 11, 73 %). Treatment-related serious AEs were reported in 11 (73 %) patients. Nine patients (60 %) discontinued treatment due to drug-related toxicities. Immune-related AEs (irAEs) were reported in 14 patients (93 %). The most frequent irAEs were liver (n = 12, 80 %) and skin (n = 10, 67 %) toxicities. Five deaths were reported; all were caused by progressive disease. Efficacy evaluation showed one complete response, one partial response and four patients with stable disease. Best overall response rate was 13 % (2/15), and the disease control rate was 40 % (6/15). The study was terminated early due to frequent, high-grade liver toxicities. CONCLUSIONS IPI 10 mg/kg plus DTIC 850 mg/m(2) was not considered tolerable in the Japanese patient population. ClinicalTrials.gov identifier: NCT01681212.
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Affiliation(s)
- N Yamazaki
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - H Uhara
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Fukushima
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - H Uchi
- Department of Dermatology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - N Shibagaki
- Department of Dermatology, Yamanashi University Hospital, Yamanashi, Japan
| | - Y Kiyohara
- Dermatology Division, Shizuoka Cancer Center, Shizuoka, Japan
| | - A Tsutsumida
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - K Namikawa
- Department of Dermatologic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - R Okuyama
- Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Otsuka
- Research and Development, Bristol-Myers K.K., 6-5-1, Nishishinjuku, Shinjuku-ku, Tokyo, 163-1328, Japan
| | - T Tokudome
- Research and Development, Bristol-Myers K.K., 6-5-1, Nishishinjuku, Shinjuku-ku, Tokyo, 163-1328, Japan.
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29
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Shimanoe C, Hara M, Nishida Y, Nanri H, Otsuka Y, Nakamura K, Higaki Y, Imaizumi T, Taguchi N, Sakamoto T, Horita M, Shinchi K, Tanaka K. Perceived Stress and Coping Strategies in Relation to Body Mass Index: Cross-Sectional Study of 12,045 Japanese Men and Women. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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30
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Jemat A, Ghazali MJ, Razali M, Otsuka Y. Surface Modifications and Their Effects on Titanium Dental Implants. Biomed Res Int 2015; 2015:791725. [PMID: 26436097 PMCID: PMC4575991 DOI: 10.1155/2015/791725] [Citation(s) in RCA: 250] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 11/25/2022]
Abstract
This review covers several basic methodologies of surface treatment and their effects on titanium (Ti) implants. The importance of each treatment and its effects will be discussed in detail in order to compare their effectiveness in promoting osseointegration. Published literature for the last 18 years was selected with the use of keywords like titanium dental implant, surface roughness, coating, and osseointegration. Significant surface roughness played an important role in providing effective surface for bone implant contact, cell proliferation, and removal torque, despite having good mechanical properties. Overall, published studies indicated that an acid etched surface-modified and a coating application on commercial pure titanium implant was most preferable in producing the good surface roughness. Thus, a combination of a good surface roughness and mechanical properties of titanium could lead to successful dental implants.
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Affiliation(s)
- A. Jemat
- Department of Mechanical & Materials Engineering, Faculty of Engineering and Built Environment, UKM, 43600 Bangi, Selangor Darul Ehsan, Malaysia
| | - M. J. Ghazali
- Department of Mechanical & Materials Engineering, Faculty of Engineering and Built Environment, UKM, 43600 Bangi, Selangor Darul Ehsan, Malaysia
| | - M. Razali
- Department of Peridontology, Faculty of Dentistry, National University of Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Y. Otsuka
- Department of System Safety, Nagaoka University of Technology, 1603-1 Kamitomioka-Cho, Nagaoka-shi, Niigata 940-2188, Japan
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32
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Thongsahuan S, Otsuka Y, Baimai V, Saeung A, Hempolchom C, Taai K, Srisuka W, Dedkhad W, Sor-suwan S, Choochote W. Cytogenetic, crossing and molecular evidence of two cytological forms of Anopheles argyropus and three cytological forms of Anopheles pursati (Diptera: Culicidae) in Thailand. Trop Biomed 2014; 31:641-653. [PMID: 25776589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nine and 11 isolines of Anopheles argyropus and Anopheles pursati, respectively, were established from individual females collected from cow-baited traps, and the characteristics of metaphase chromosomes were investigated in their F1-progenies. As determined by the different amounts of extra heterochromatin on sex chromosomes, 2 types of X (X1, X2) and Y (Y1,Y2), and 2 types of X (X1, X2) and 3 types of Y (Y1, Y2, Y3) chromosomes were obtained from An. argyropus and An. pursati, respectively. These types of sex chromosomes comprised 2 [Forms A (X1, Y1) and B (X1, X2, Y2)] and 3 [Forms A (X1, X2, Y1), B (X1, X2, Y2) and C (X2, Y3)] karyotypic forms of An. argyropus and An. pursati, respectively. All karyotypic forms acquired from An. pursati are new one that were discovered in this study, of which Forms A, B and C were found generally in Chiang Mai Province, while only 1 isoline of Form B was obtained in Ratchaburi Province. Form A was recovered from An. argyropus only in Ubon Ratchathani Province, whereas Form B from that species was found commonly in both Ubon Rathchathani and Nakhon Si Thammarat Provinces. Crossing experiments among the 2 and 3 isolines representing 2 and 3 karyotypic forms of An. argyropus and An. pursati, respectively, indicated genetic compatibility in yielding viable progenies and synaptic salivary gland polytene chromosomes through F2-generations. The conspecific natures of these karyotypic forms in both species were further supported by very low intraspecific sequence variations (average genetic distance: An. argyropus = 0.003-0.007, An. pursati = 0-0.005) of ribosomal DNA (ITS2) and mitochondrial DNA (COI and COII).
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Affiliation(s)
- S Thongsahuan
- Faculty of Veterinary Science (Establishment Project), Prince of Songkla University, Songkhla 90110, Thailand
| | - Y Otsuka
- Research Center for the Pacific Islands, Kagoshima University, Kagoshima 890-8580, Japan
| | - V Baimai
- Department of Biology and Center for Vectors and Vector-Borne Diseases, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - A Saeung
- Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - C Hempolchom
- Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - K Taai
- Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - W Srisuka
- Entomology Section, Queen Sirikit Botanic Garden, P.O. Box 7, Chiang Mai, 50180, Thailand
| | - W Dedkhad
- Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - S Sor-suwan
- Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - W Choochote
- Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
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Abe K, Hieda K, Hiraide K, Hirano S, Kishimoto Y, Ichimura K, Kobayashi K, Moriyama S, Nakagawa K, Nakahata M, Ogawa H, Oka N, Sekiya H, Shinozaki A, Suzuki Y, Takeda A, Takachio O, Umemoto D, Yamashita M, Yang BS, Tasaka S, Liu J, Martens K, Hosokawa K, Miuchi K, Murata A, Onishi Y, Otsuka Y, Takeuchi Y, Kim YH, Lee KB, Lee MK, Lee JS, Fukuda Y, Itow Y, Masuda K, Takiya H, Uchida H, Kim NY, Kim YD, Kusaba F, Nishijima K, Fujii K, Murayama I, Nakamura S. Search for bosonic superweakly interacting massive dark matter particles with the XMASS-I detector. Phys Rev Lett 2014; 113:121301. [PMID: 25279618 DOI: 10.1103/physrevlett.113.121301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Indexed: 06/03/2023]
Abstract
Bosonic superweakly interacting massive particles (super-WIMPs) are a candidate for warm dark matter. With the absorption of such a boson by a xenon atom, these dark matter candidates would deposit an energy equivalent to their rest mass in the detector. This is the first direct detection experiment exploring the vector super-WIMPs in the mass range between 40 and 120 keV. With the use of 165.9 day of data, no significant excess above background was observed in the fiducial mass of 41 kg. The present limit for the vector super-WIMPs excludes the possibility that such particles constitute all of dark matter. The absence of a signal also provides the most stringent direct constraint on the coupling constant of pseudoscalar super-WIMPs to electrons. The unprecedented sensitivity was achieved exploiting the low background at a level 10(-4) kg-1 keVee-1 day-1 in the detector.
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Affiliation(s)
- K Abe
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Hieda
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - K Hiraide
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Hirano
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - Y Kishimoto
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Ichimura
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Kobayashi
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Moriyama
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Nakagawa
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - M Nakahata
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - H Ogawa
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - N Oka
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - H Sekiya
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - A Shinozaki
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - Y Suzuki
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - A Takeda
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - O Takachio
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - D Umemoto
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan
| | - M Yamashita
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - B S Yang
- Kamioka Observatory, Institute for Cosmic Ray Research, the University of Tokyo, Higashi-Mozumi, Kamioka, Hida, Gifu 506-1205, Japan and Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - S Tasaka
- Information and Multimedia Center, Gifu University, Gifu 501-1193, Japan
| | - J Liu
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Martens
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - K Hosokawa
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - K Miuchi
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - A Murata
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Onishi
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Otsuka
- Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y Takeuchi
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), the University of Tokyo, Kashiwa, Chiba 277-8582, Japan and Department of Physics, Kobe University, Kobe, Hyogo 657-8501, Japan
| | - Y H Kim
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - K B Lee
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - M K Lee
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - J S Lee
- Korea Research Institute of Standards and Science, Daejeon 305-340, South Korea
| | - Y Fukuda
- Department of Physics, Miyagi University of Education, Sendai, Miyagi 980-0845, Japan
| | - Y Itow
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan and Kobayashi-Masukawa Institute for the Origin of Particles and the Universe, Nagoya University, Furu-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - K Masuda
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - H Takiya
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - H Uchida
- Solar Terrestrial Environment Laboratory, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - N Y Kim
- Department of Physics, Sejong University, Seoul 143-747, South Korea
| | - Y D Kim
- Department of Physics, Sejong University, Seoul 143-747, South Korea
| | - F Kusaba
- Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - K Nishijima
- Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - K Fujii
- Department of Physics, Faculty of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - I Murayama
- Department of Physics, Faculty of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
| | - S Nakamura
- Department of Physics, Faculty of Engineering, Yokohama National University, Yokohama, Kanagawa 240-8501, Japan
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Takaoka H, Bain O, Uni S, Korenaga M, Kozek WJ, Shirasaka C, Aoki C, Otsuka Y, Fukuda M, Eshita Y, Daa T. Zoonotic onchocerciasis caused by a parasite from wild boar in Oita, Japan. Parasite 2014; 11:285-92. [PMID: 15490753 DOI: 10.1051/parasite/2004113285] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 11/14/2022] Open
Abstract
Histological examination of a nodule removed from the back of the hand of a 58-year-old woman from Oita, Kyushu, Japan showed an Onchocerca female sectioned through the posterior region of the worm (ovaries identifiable) and young (thin cuticle). Six Onchocerca species are enzootic in that area: O. gutturosa and O. lienalis in cattle, O. suzukii in serows (Capricornis crispus), O. skrjabini and an Onchocerca sp. in Cervus nippon nippon, and O. dewittei japonica in wild boar (Sus scrofa leucomystax). Diagnostic characters of female Onchocerca species, such as the cuticle and its ridges, change along the body length. Tables of the histologic morphology of the mid- and posterior body-regions of the local species are presented. In addition, it was observed that transverse ridges arose and thickened during the adult stage (examination of fourth stage and juvenile females of O. volvulus). The specimen described in this report, with its prominent and widely spaced ridges, was identified as O. d. japonica. Four of the 10 zoonotic cases of onchocerciasis reported worldwide were from Oita, three of them being caused by O. d. japonica, the prevalence of which in local wild boar was 22 of 24 (92%).
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Affiliation(s)
- H Takaoka
- Department of Infectious Disease Control, Oita University, Hasama-cho, Oita 879-5593, Japan.
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Sakurai K, Nakata A, Ikeda T, Otsuka Y, Kawahito J. How do employment types and job stressors relate to occupational injury? A cross-sectional investigation of employees in Japan. Public Health 2013; 127:1012-20. [DOI: 10.1016/j.puhe.2013.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 08/10/2013] [Accepted: 08/27/2013] [Indexed: 10/26/2022]
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Mikawa T, Suzuki D, Muranaka K, Yoshihumi U, Tochitani K, Hase R, Hidetaka K, Otsuka Y, Hosokawa N. Bacteremia in Gastric Cancer Patients. -A Demographic Study-. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt460.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Takahashi M, Suzuki K, Kim HK, Otsuka Y, Imaizumi A, Miyashita M, Sakamoto S. Effects of curcumin supplementation on exercise-induced oxidative stress in humans. Int J Sports Med 2013; 35:469-75. [PMID: 24165958 DOI: 10.1055/s-0033-1357185] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The purpose of this study was to investigate the effects of curcumin supplementation on exercise-induced oxidative stress in humans. 10 male participants, ages 26.8±2.0 years (mean±SE), completed 3 trials in a random order: (1) placebo (control), (2) single (only before exercise) and (3) double (before and immediately after exercise) curcumin supplementation trials. Each participant received oral administration of 90 mg of curcumin or the placebo 2h before exercise and immediately after exercise. Each participant walked or ran at 65% of V˙2max on a treadmill for 60min. Blood samples were collected pre-exercise, immediately after exercise and 2h after exercise. The concentrations of serum derivatives of reactive oxygen metabolites measured immediately after exercise were significantly higher than pre-exercise values in the placebo trial (308.8±12.9 U. CARR, P<0.05), but not in the single (259.9±17.1 U. CARR) or double (273.6±19.7 U. CARR) curcumin supplementation trials. Serum biological antioxidant potential concentrations measured immediately after exercise were significantly elevated in the single and double curcumin supplementation trials compared with pre-exercise values (P<0.05). These findings indicate that curcumin supplementation can attenuate exercise-induced oxidative stress by increasing blood antioxidant capacity.
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Affiliation(s)
- M Takahashi
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan
| | - K Suzuki
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan
| | - H K Kim
- Graduate School of Sport Sciences, Waseda University, Tokorozawa, Japan
| | - Y Otsuka
- Science Group, Theravalues Corporation, Chiyoda-ku, Japan
| | - A Imaizumi
- Science Group, Theravalues Corporation, Chiyoda-ku, Japan
| | - M Miyashita
- Faculty of Education, Tokyo Gakugei University, Koganei, Japan
| | - S Sakamoto
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan
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Kinoshita R, Nam JM, Ito YM, Hatanaka KC, Hashimoto A, Handa H, Otsuka Y, Hashimoto S, Onodera Y, Hosoda M, Onodera S, Shimizu S, Tanaka S, Shirato H, Tanino M, Sabe H. Co-overexpression of GEP100 and AMAP1 proteins correlates with rapid local recurrence after breast conservative therapy. PLoS One 2013; 8:e76791. [PMID: 24116160 PMCID: PMC3792161 DOI: 10.1371/journal.pone.0076791] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [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: 05/14/2013] [Accepted: 09/03/2013] [Indexed: 01/25/2023] Open
Abstract
A major problem of current cancer research and therapy is prediction of tumor recurrence after initial treatment, rather than the simple biological characterization of the malignancy and proliferative properties of tumors. Breast conservation therapy (BCT) is a well-approved, standard treatment for patients with early stages of breast cancer, which consists of lumpectomy and whole-breast irradiation. In spite of extensive studies, only 'age' and 'Ki-67 positivity' have been identified to be well correlated with local recurrence after BCT. An Arf6 pathway, activated by GEP100 under receptor tyrosine kinases (RTKs) and employs AMAP1 as its effector, is crucial for invasion and metastasis of some breast cancer cells. This pathway activates β1 integrins and perturbs E-cadherin-based adhesions, hence appears to be integral for epithelial-mesenchymal transdifferentiation (EMT). We here show that expression of the Arf6 pathway components statistically correlates with rapid local recurrence after BCT. We retrospectively analyzed four hundred seventy-nine patients who received BCT in Hokkaido University Hospital, and found 20 patients had local recurrence. We then analyzed pathological samples of patients who experienced local recurrence by use of Kaplan-Meier analysis, Stepwise regression analysis and the t-test, coupled with immunostaining, and found that co-overexpression of GEP100 and AMAP1 correlates with rapidity of the local recurrence. Their margin-status, node-positivity, and estrogen receptor (ER)- or progesterone receptor (PgR)-positivity did not correlated with the rapidity. This study is the first to show that expression of a certain set of proteins correlates with the rapidity of local recurrence. Our results are useful not only for prediction, but highlight the possibility of developing novel strategies to block local recurrence. We also discuss why mRNAs encoding these proteins have not been identified to correlate with local recurrence by previous conventional gene expression profiling analyses.
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Affiliation(s)
- Rumiko Kinoshita
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Jin-Min Nam
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Yoichi M. Ito
- Department of Biostatistics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Kanako C. Hatanaka
- Department of Surgical Pathology, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Ari Hashimoto
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Haruka Handa
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Yutaro Otsuka
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Shigeru Hashimoto
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Yasuhito Onodera
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Mitsuchika Hosoda
- Department of Breast and Endocrine Surgery, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Shunsuke Onodera
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Shinichi Shimizu
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Shinya Tanaka
- Laboratory of Cancer Research, Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Hiroki Shirato
- Department of Radiation Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Mishie Tanino
- Laboratory of Cancer Research, Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan
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Uwamino Y, Hosokawa N, Suzuki D, Mikawa T, Muranaka K, Tochitani K, Hase R, Kitazono H, Otsuka Y. P359 Can Enterobacter bacteremia be treated with third generation cephalosporins? Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70600-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Taai K, Baimai V, Thongsahuan S, Saeung A, Otsuka Y, Srisuka W, Sriwichai P, Somboon P, Jariyapan N, Choochote W. Metaphase karyotypes of Anopheles paraliae (Diptera:Culicidae) in Thailand and evidence to support five cytological races. Trop Biomed 2013; 30:238-249. [PMID: 23959489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Sixteen isoline colonies of Anopheles paraliae were established from wild-caught females collected from cow-baited traps at 4 locations in Thailand. They showed 3 types of X (X1, X2, X3) and 5 types of Y (Y1, Y2, Y3, Y4, Y5) chromosomes based on the number and amount of major block(s) of heterochromatin present in the heterochromatic arm, and were designated as Forms A (X3, Y1), B (X1, X2, X3, Y2), C (X3, Y3), D (X1, X2, X3, Y4) and E (X3, Y5). Form A was found in Songkhla Province, Form B was obtained in Ratchaburi, Nakhon Si Thammarat and Songkhla Provinces, Form C was acquired in Chanthaburi Province, Form D was recovered in Ratchaburi and Songkhla Provinces, and Form E was encountered in Ratchaburi Province. Hybridization experiments among the 7 isoline colonies, which represented the 5 karyotypic forms of An. paraliae, revealed genetic compatibility in providing viable progenies and synaptic salivary gland polytene chromosomes through F2-generations, and thus suggest the conspecific nature of these karyotypic forms. These results were supported by the very low intraspecific sequence divergence (mean genetic distance = 0.000-0.002) of the nucleotide sequences in ribosomal DNA (ITS2) and mitochondrial DNA (COI and COII) of the 5 forms.
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Affiliation(s)
- K Taai
- Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
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Abstract
Studies of blackfly vectors of Onchocerca dewittei japonica Uni, Bain & Takaoka (Spirurida: Onchocercidae), a parasite of wild boar implicated in the aetiology of zoonotic onchocerciasis in Japan, and six other zoonotic Onchocerca species of this country are reviewed. Molecular identification of infective larvae found in wild-caught female blackflies showed that Simulium bidentatum (Shiraki) (Diptera: Simuliidae) is a natural vector of O. dewittei japonica, and also Onchocerca sp. sensu Fukuda et al., another parasite of wild boar. Inoculation experiments demonstrated that Simulium arakawae Matsumura and four other Simulium species are putative vectors. Similarly, S. arakawae, S. bidentatum and Simulium oitanum (Shiraki) are putative vectors of Onchocerca eberhardi Uni & Bain and Onchocerca skrjabini Rukhlyadev, parasites of sika deer. Morphometric studies of infective larvae indicated that Onchocerca lienalis Stiles, a bovine species, is transmitted by S. arakawae, Simulium daisense (Takahasi) and Simulium kyushuense Takaoka, and that Onchocerca sp. sensu Takaoka & Bain, another bovine species, is transmitted by S. arakawae, S. bidentatum, S. daisense and S. oitanum. Prosimulium sp. (Diptera: Simuliidae) and Simulium japonicum Matsumura are suspected vectors of Onchocerca suzukii Yagi, Bain & Shoho and O. skrjabini [Twinnia japonensis Rubtsov (Diptera: Simuliidae) may also transmit the latter], parasites of Japanese serow, following detection of the parasites' DNA genes in wild-caught blackflies.
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Affiliation(s)
- H Takaoka
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
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Takaoka H, Srisuka W, Saeung A, Otsuka Y, Choochote W. Simulium (Nevermannia) chomthongense, a new species of black fly (Diptera: Simuliidae) from Chiang Mai, Thailand. Trop Biomed 2012; 29:381-390. [PMID: 23018501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Simulium (Nevermannia) chomthongense sp. nov. is described from female, male, pupal and larval specimens collected from Doi Inthanon National Park and Doi Phahompok National Park, Chiang Mai, Thailand. This new species, first reported as S. (Eusimulium) sp. A, and later regarded as S. (N.) caudisclerum Takaoka & Davies, described from peninsular Malaysia, is distinguished from S. (N.) caudisclerum in the male by the number of enlarged upper-eye facets and the relative size of the hind basitarsus against the hind tibia and femur, and in the pupa by the relative length of the stalks of paired filaments against the common basal stalk and the color of the dorsal surface of abdominal segments 1- 3 (or 4). Taxonomic and molecular notes are provided to separate this new species from four other known species of the vernum species-group, which share an accessory sclerite on the larval abdomen, a rare characteristic in this species-group.
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Affiliation(s)
- H Takaoka
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia.
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Asai N, Ohkuni Y, Matsunuma R, Nakashima K, Nakashita T, Otsuka Y, Kaneko N, Motojima S, Aoshima M. The predictive rule for the management of hospital-acquired pneumonia in adults by the Japanese Respiratory Society, I-ROAD, could correctly estimate the severity of Pneumcystis Pneumonia without human immunodeficiency virus infection. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Otsuka Y. [Drug approval lag in Japan and drugs for children]. No To Hattatsu 2012; 44:2. [PMID: 22352021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Otsuka Y, Yamauchi H, Sawamoto N, Iseki K, Tomimoto H, Fukuyama H. Diffuse tract damage in the hemispheric deep white matter may correlate with global cognitive impairment and callosal atrophy in patients with extensive leukoaraiosis. AJNR Am J Neuroradiol 2011; 33:726-32. [PMID: 22210709 DOI: 10.3174/ajnr.a2853] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Patients with extensive leukoaraiosis are at high risk for vascular dementia. However, these patients exhibit variable severity of global cognitive impairment correlating with callosal atrophy. We hypothesized that callosal atrophy may reflect the severity of HDWM tract damage, which may explain global cognitive impairment. The purpose of this study was to evaluate HDWM tract damage by DTI and to investigate whether HDWM tract damage is associated with callosal atrophy and global cognitive impairment, in patients with extensive leukoaraiosis. MATERIALS AND METHODS Twenty-four consecutive outpatients with extensive leukoaraiosis were enrolled prospectively. The patients underwent cognitive evaluation and 3T MR imaging. The intercorrelation between cognitive score, DA of the HDWM, callosal DA, and callosal volume was analyzed statistically. The correlation of the cognitive score with DA of the HDWM and the corpus callosum was also evaluated by voxel-based analyses by using TBSS. RESULTS The patients' MMSE scores varied from 10 to 30 (mean, 25.1 ± 6.0). Reduced DA of the HDWM, reduced callosal DA, and callosal atrophy intercorrelated significantly. All of these parameters showed a significant correlation with global cognitive impairment. TBSS analyses showed a significant correlation between MMSE score decline and reduced DA in the diffuse HDWM and the corpus callosum. CONCLUSIONS In patients with extensive leukoaraiosis, atrophy and reduced DA of the corpus callosum may indicate diffuse HDWM tract damage, which may explain global cognitive impairment and development of vascular dementia.
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Affiliation(s)
- Y Otsuka
- Human Brain Research Center, Kyoto University Graduate School of Medicine, Kyoto, Japan.
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Tsuruhara A, Kaneko H, Kanazawa S, Otsuka Y, Shirai N, Yamaguchi MK. Infants' ability to perceive depth produced by vertical disparity. J Vis 2011. [DOI: 10.1167/11.11.421] [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: 11/24/2022] Open
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Kobayashi M, Otsuka Y, Kanazawa S, Yamaguchi MK, Kakigi R. Do infant represent the facial identity in a viewpoint-invariant manner? The neural adaptation study as measured by near-infrared spectroscopy. J Vis 2011. [DOI: 10.1167/11.11.445] [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: 11/24/2022] Open
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Menju T, Hashimoto S, Hashimoto A, Otsuka Y, Handa H, Ogawa E, Toda Y, Wada H, Date H, Sabe H. Engagement of overexpressed Her2 with GEP100 induces autonomous invasive activities and provides a biomarker for metastases of lung adenocarcinoma. PLoS One 2011; 6:e25301. [PMID: 21966491 PMCID: PMC3178645 DOI: 10.1371/journal.pone.0025301] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [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: 04/27/2011] [Accepted: 08/31/2011] [Indexed: 02/04/2023] Open
Abstract
Overexpression of Her2/ErbB2/Neu in cancer is often correlated with recurrent distant metastasis, although the mechanism still remains largely elusive. We have previously shown that EGFR, when tyrosine-phosphorylated, binds to GEP100/BRAG2 to activate Arf6, which induces cancer invasion and metastasis. We now show that overexpressed Her2 in lung adenocarcinoma cells also employs GEP100. Like EGFR-GEP100 binding, this association is primarily mediated by the pleckstrin homology (PH) domain of GEP100 and Tyr1139/Tyr1196 of Her2. Tyr1139/Tyr1196 are autonomously phosphorylated, when Her2 is overexpressed. Accordingly, invasive activities mediated by the Her2-GEP100 pathway are not dependent on external factors. Blocking Her2-GEP100 binding, as well as its signaling pathway all inhibit cancer invasive activities. Moreover, our clinical study indicates that co-overexpression of Her2 with GEP100 in primary lung adenocarcinomas of patients is correlated with the presence of their node-metastasis with a statistical significance. Since the GEP100 PH domain interacts with both Her2 and EGFR, targeting this domain may provide novel cancer therapeutics.
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Affiliation(s)
- Toshi Menju
- Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shigeru Hashimoto
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Ari Hashimoto
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Yutaro Otsuka
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Haruka Handa
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Eiji Ogawa
- Laboratory of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Yoshinobu Toda
- Laboratory of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Hiromi Wada
- Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Date
- Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hisataka Sabe
- Department of Molecular Biology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
- * E-mail:
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Fukuda M, Otsuka Y, Uni S, Boda T, Daisaku H, Hasegawa H, Takaoka H, Bain O. Zoonotic onchocerciasis in Hiroshima, Japan, and molecular analysis of a paraffin section of the agent for a reliable identification. Parasite 2011; 18:185-8. [PMID: 21678795 PMCID: PMC3671418 DOI: 10.1051/parasite/2011182185] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Japan is a country of high specific diversity of Onchocerca with eight species, the adults of two not yet known. Onchocerca dewittei japonica, a common filarial parasite of wild boar, had been proved to be the agent of five zoonotic onchocerciasis in Kyushu island with morphological and molecular studies. The sixth case, at Hiroshima in the main island, was identified to the same Onchocerca species, based on adult characters observed on histological sections. To consolidate the identification, mitochondrial cytochrome c oxidase subunit 1 (CO1) gene analysis was attempted with the formalin-fixed, paraffin-embedded parasite specimen. The sequence (196 bp) of a CO1 gene fragment of the parasite successfully PCR-amplified agreed well with those of O. dewittei japonica registered in GenBank, confirming the morphological identification. Moreover a comparison with the CO1 gene sequences of six other Onchocerca species in GenBank excluded the possibility that Onchocerca sp. from wild boar and Onchocerca sp. type A from cattle in Japan, were the causative agents in this case. Mitochondrial DNA analysis proved to be a valuable tool to support the morphological method for the discrimination of zoonotic Onchocerca species in a histological specimen.
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Affiliation(s)
- M Fukuda
- Research Promotion Project, Oita University, Hasama, Yufu, Oita 879-5593, Japan.
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Otsuka Y, Yamanouchi H. [Clinical trials of intravenous phenobarbital for the establishment of evidence-based standard treatment for status epilepticus in Japan]. No To Hattatsu 2011; 43:128-131. [PMID: 21409834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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