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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Otaki M, Goto H. Electrochromism of Main‐Chain Polyazobenzenes Synthesized in Liquid Crystal Template and Its Orientation Behavior. ChemistrySelect 2022. [DOI: 10.1002/slct.202200041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. Otaki
- Department of Materials Science Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 305-8573 Japan
| | - H. Goto
- Department of Materials Science Faculty of Pure and Applied Sciences University of Tsukuba Tsukuba Ibaraki 305-8573 Japan
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Higuchi A, Wakai E, Tada T, Koiwa J, Adachi Y, Shiromizu T, Goto H, Tanaka T, Nishimura Y. Generation of a Transgenic Zebrafish Line for In Vivo Assessment of Hepatic Apoptosis. Pharmaceuticals (Basel) 2021; 14:ph14111117. [PMID: 34832899 PMCID: PMC8618266 DOI: 10.3390/ph14111117] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 10/29/2021] [Indexed: 01/09/2023] Open
Abstract
Hepatic apoptosis is involved in a variety of pathophysiologic conditions in the liver, including hepatitis, steatosis, and drug-induced liver injury. The development of easy-to-perform and reliable in vivo assays would thus greatly enhance the efforts to understand liver diseases and identify associated genes and potential drugs. In this study, we developed a transgenic zebrafish line that was suitable for the assessment of caspase 3 activity in the liver by using in vivo fluorescence imaging. The larvae of transgenic zebrafish dominantly expressed Casper3GR in the liver under control of the promoter of the phosphoenolpyruvate carboxykinase 1 gene. Casper3GR is composed of two fluorescent proteins, tagGFP and tagRFP, which are connected via a peptide linker that can be cleaved by activated caspase 3. Under tagGFP excitation conditions in zebrafish that were exposed to the well-characterized hepatotoxicant isoniazid, we detected increased and decreased fluorescence associated with tagGFP and tagRFP, respectively. This result suggests that isoniazid activates caspase 3 in the zebrafish liver, which digests the linker between tagGFP and tagRFP, resulting in a reduction in the Förster resonance energy transfer to tagRFP upon tagGFP excitation. We also detected isoniazid-induced inhibition of caspase 3 activity in zebrafish that were treated with the hepatoprotectants ursodeoxycholic acid and obeticholic acid. The transgenic zebrafish that were developed in this study could be a powerful tool for identifying both hepatotoxic and hepatoprotective drugs, as well as for analyzing the effects of the genes of interest to hepatic apoptosis.
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Affiliation(s)
- Aina Higuchi
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan; (A.H.); (E.W.); (J.K.); (Y.A.); (T.S.)
| | - Eri Wakai
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan; (A.H.); (E.W.); (J.K.); (Y.A.); (T.S.)
| | - Tomoko Tada
- Ise Red Cross Hospital, Ise 516-8512, Mie, Japan;
| | - Junko Koiwa
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan; (A.H.); (E.W.); (J.K.); (Y.A.); (T.S.)
| | - Yuka Adachi
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan; (A.H.); (E.W.); (J.K.); (Y.A.); (T.S.)
| | - Takashi Shiromizu
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan; (A.H.); (E.W.); (J.K.); (Y.A.); (T.S.)
| | - Hidemasa Goto
- Department of Histology and Cell Biology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan;
| | - Toshio Tanaka
- Department of Systems Pharmacology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan;
| | - Yuhei Nishimura
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu 514-8507, Mie, Japan; (A.H.); (E.W.); (J.K.); (Y.A.); (T.S.)
- Correspondence:
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Ozaki C, Dantas F, Santana K, Tafuri W, Sotto M, Goto H, Cazita P. Cholesterol ester transfer protein (CETP) expression in mice promotes control of experimental cutaneous leishmaniasis. Atherosclerosis 2021. [DOI: 10.1016/j.atherosclerosis.2021.06.416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Fujiyoshi T, Tajika M, Tanaka T, Ishihara M, Mizuno N, Hara K, Hijioka S, Imaoka H, Yatabe Y, Hirooka Y, Goto H, Yamao K, Niwa Y. Corrigendum to: Comparative evaluation of new and conventional classifications of magnifying endoscopy with narrow band imaging for invasion depth of superficial esophageal squamous cell carcinoma. Dis Esophagus 2020; 33:5827112. [PMID: 32352143 DOI: 10.1093/dote/doaa040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 12/11/2022]
Affiliation(s)
- T Fujiyoshi
- Departments of Gastroenterology.,Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan
| | | | | | | | | | - K Hara
- Departments of Gastroenterology
| | | | | | - Y Yatabe
- Pathology and Molecular Diagnosis, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Y Hirooka
- Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan
| | - H Goto
- Departments of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Yamao
- Departments of Gastroenterology
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Tomida N, Muramatsu N, Niiyama M, Ahn JK, Chang WC, Chen JY, Chu ML, Daté S, Gogami T, Goto H, Hamano H, Hashimoto T, He QH, Hicks K, Hiraiwa T, Honda Y, Hotta T, Ikuno H, Inoue Y, Ishikawa T, Jaegle I, Jo JM, Kasamatsu Y, Katsuragawa H, Kido S, Kon Y, Maruyama T, Masumoto S, Matsumura Y, Miyabe M, Mizutani K, Nagahiro H, Nakamura T, Nakano T, Nam T, Ngan TNT, Nozawa Y, Ohashi Y, Ohnishi H, Ohta T, Ozawa K, Rangacharyulu C, Ryu SY, Sada Y, Sasagawa M, Shibukawa T, Shimizu H, Shirai R, Shiraishi K, Strokovsky EA, Sugaya Y, Sumihama M, Suzuki S, Tanaka S, Tokiyasu A, Tsuchikawa Y, Ueda T, Yamazaki H, Yamazaki R, Yanai Y, Yorita T, Yoshida C, Yosoi M. Search for η^{'} Bound Nuclei in the ^{12}C(γ,p) Reaction with Simultaneous Detection of Decay Products. Phys Rev Lett 2020; 124:202501. [PMID: 32501086 DOI: 10.1103/physrevlett.124.202501] [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] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/11/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
We measured missing mass spectrum of the ^{12}C(γ,p) reaction for the first time in coincidence with potential decay products from η^{'} bound nuclei. We tagged an (η+p) pair associated with the η^{'}N→ηN process in a nucleus. After applying kinematical selections to reduce backgrounds, no signal events were observed in the bound-state region. An upper limit of the signal cross section in the opening angle cosθ_{lab}^{ηp}<-0.9 was obtained to be 2.2 nb/sr at the 90% confidence level. It is compared with theoretical cross sections, whose normalization ambiguity is suppressed by measuring a quasifree η^{'} production rate. Our results indicate a small branching fraction of the η^{'}N→ηN process and/or a shallow η^{'}-nucleus potential.
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Affiliation(s)
- N Tomida
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Muramatsu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Niiyama
- Department of Physics, Kyoto Sangyo University, Kyoto 603-8555, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - W C Chang
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - J Y Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - M L Chu
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - S Daté
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Japan Synchrotron Radiation Research Institute (SPring-8), Sayo, Hyogo 679-5198, Japan
| | - T Gogami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Goto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Hamano
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Hashimoto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Q H He
- Department of Nuclear Science & Engineering, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - K Hicks
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - T Hiraiwa
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Y Honda
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Hotta
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Ikuno
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Inoue
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Ishikawa
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - I Jaegle
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J M Jo
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - Y Kasamatsu
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Katsuragawa
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S Kido
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Kon
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Institute for Radiation Sciences, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Maruyama
- College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa 252-8510, Japan
| | - S Masumoto
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - Y Matsumura
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - M Miyabe
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - K Mizutani
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Nagahiro
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Nara Women's University, Nara 630-8506, Japan
| | - T Nakamura
- Department of Education, Gifu University, Gifu 501-1193, Japan
| | - T Nakano
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Nam
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T N T Ngan
- Nuclear Physics Department, University of Science, Vietnam National University, Ho Chi Minh City 72711, Vietnam
| | - Y Nozawa
- Department of Radiology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Y Ohashi
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Ohnishi
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Ohta
- Department of Radiology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - K Ozawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - C Rangacharyulu
- Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon SK S7N 5E2, Canada
| | - S Y Ryu
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Sada
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Sasagawa
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Shibukawa
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - H Shimizu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - R Shirai
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - K Shiraishi
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - E A Strokovsky
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Laboratory of High Energy Physics, Joint Institute for Nuclear Research, Dubna, Moscow Region 142281, Russia
| | - Y Sugaya
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - M Sumihama
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Education, Gifu University, Gifu 501-1193, Japan
| | - S Suzuki
- Japan Synchrotron Radiation Research Institute (SPring-8), Sayo, Hyogo 679-5198, Japan
| | - S Tanaka
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - A Tokiyasu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Tsuchikawa
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T Ueda
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - H Yamazaki
- Radiation Science Center, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki 319-1195, Japan
| | - R Yamazaki
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Yanai
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Yorita
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - C Yoshida
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Yosoi
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
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Cunha AF, Andrade HM, Souza FN, Fialho Júnior LC, Rosa DLSO, Ramos Sanchez EM, Gidlund M, Goto H, Brito MAVP, Guimarães AS, Lage AP, Reis LC, Della Libera AMMP, Heinemann MB, Cerqueira MMOP. Comparison of antibody repertories against Staphylococcus aureus in healthy and infected dairy cows with a distinct mastitis history and vaccinated with a polyvalent mastitis vaccine. J Dairy Sci 2020; 103:4588-4605. [PMID: 32113759 DOI: 10.3168/jds.2019-17084] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 11/25/2019] [Indexed: 12/22/2022]
Abstract
Staphylococcus aureus is one of the pathogens most frequently isolated from cases of mastitis worldwide. To decrease the effect of S. aureus mastitis in dairy farming, alternative strategies for controlling mastitis are needed that depend on a better knowledge of cow-to-cow variations in S. aureus antibody production. The present study sought to explore the diversity of S. aureus antibodies produced by dairy cows with a distinct mastitis history and vaccinated with a polyvalent mastitis vaccine. We obtained protein extracts from S. aureus isolates derived from persistent subclinical mastitis. Proteins were fractionated using 2-dimensional gel electrophoresis and Western blotting. Then, Western blotting membranes were exposed to sera from 24 dairy cows that had been divided into the following groups: vaccinated dairy cows that were infected with S. aureus, further subdivided according to whether they (a) remained infected by S. aureus or (b) recovered from the intramammary infection; unvaccinated dairy cows infected with S. aureus; and vaccinated healthy dairy cows with no history of S. aureus mastitis. Proteins found to be reactive by Western blot were identified by mass spectrometry (MALDI/TOF-TOF). Our most important finding was that F0F1 ATP synthase subunit α, succinyl-diaminopimelate desuccinylase, and cysteinyl-tRNA synthetase were potential candidate proteins for the prevention of S. aureus mastitis. This study strengthens the notion that variations among animals should not be ignored and shows that the heterogeneity of antibody production against anti-staphylococcal antigens in animals may enable the identification of new immunotherapy targets.
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Affiliation(s)
- A F Cunha
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil; Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil.
| | - H M Andrade
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - F N Souza
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil; Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil; Veterinary Clinical Immunology Research Group, Departamento de Clínica Médica, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo 05508-270, Brazil; Programa de Pós-graduação em Ciência Animal, Universidade Federal da Paraíba, Areia 58397-000, Brazil
| | - L C Fialho Júnior
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - D L S O Rosa
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil; Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil
| | - E M Ramos Sanchez
- Laboratório de Sorologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo 05403-000, Brazil; Departamento de Salud Publica, Facultad de Ciencias de La Salud, Universidad Nacional Toribio Rodriguez de Mendoza de Amazonas, Chachapoyas 01000, Peru
| | - M Gidlund
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo 05508-900, Brazil
| | - H Goto
- Laboratório de Sorologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo 05403-000, Brazil
| | - M A V P Brito
- EMBRAPA-Gado de Leite, Avenida Eugênio do Nascimento, 610, Juiz de Fora 36038-330, Brazil
| | - A S Guimarães
- Departamento de Medicina Veterinária, Universidade Federal de Lavras, Lavras 37200-000, Brazil
| | - A P Lage
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil
| | - L C Reis
- Laboratório de Sorologia e Imunobiologia, Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo 05403-000, Brazil
| | - A M M P Della Libera
- Veterinary Clinical Immunology Research Group, Departamento de Clínica Médica, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo 05508-270, Brazil
| | - M B Heinemann
- Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo 05508-270, Brazil
| | - M M O P Cerqueira
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte 31270-010, Brazil
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9
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Goto H, Tada A, Ibe A, Kitajima Y. 一项使用两种方法检查称为网状编织图案上层皮肤层的研究. Br J Dermatol 2020. [DOI: 10.1111/bjd.18773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Goto H, Tada A, Ibe A, Kitajima Y. A study using two methods to examine a skin layer called the upper basket‐weave pattern layer. Br J Dermatol 2020. [DOI: 10.1111/bjd.18758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Goto H, Takaoka H, Sakai T, Ochi S, Wakabayashi S, Ishikawa K, Kanaeda T, Daimon M, Ueda M, Funabashi N, Sano K, Kobayashi Y. P599Native T1 mapping is useful for detection of myocardial fibrosis in cases with ischemic and non-ischemic myocardial diseases. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Evaluation of myocardial fibrosis (MF) as late gadolinium enhancement (LGE) on MRI is useful for differential diagnosis of various myocardial diseases and prediction of future adverse cardiac events in some specific myocardial diseases. Gadolinium contrast is contraindicated for cases with severe renal dysfunction, therefore non contrast MRI is necessary for detection of MF in cases with both myocardial disease and severe renal dysfunction.
Purpose
We aimed to evaluate diagnostic accuracy of native T1 mapping for detection of MF compared with LGE in cases with various myocardial diseases, including ischemic and non-ischemic myocardial diseases.
Methods
We selected consecutive 40 patients who were suspected of having various myocardial diseases and underwent cardiac MRI, using 1.5T MRI (Ingenia, Philips) in 10 cases (25%) or 3T MRI (Ingenia, Philips) in 30 cases (75%), including native T1 mapping (without contrast) and LGE using contrast media from Jan 2018 to Feb 2019 in our institution. We evaluated diagnostic accuracy for detection of MF in left ventricular myocardium (LVM) of native T1 mapping image compared with LGE as the gold standard, in a patient-based and segment-based analysis. In T1 mapping images, segmental high T1 lesions were defined as MF. In a segment-based analysis, MF was evaluated using 17 LVM segments model in American Heart Association.
Results
MF was detected in 139 LVM segments in 25 (63%) cases. Sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of native T1 mapping for detection of MF were 90%, 89%, 95%, 80% and 90% in a patient-based analysis, and 63%, 96%, 84%, 89% and 88% in a segment-based analysis (left figure). Native T1-values of LVM with MF were significantly higher than LVM without LGE (1351±79 vs 1093±124 in 1.5T and 1562±131 vs 1291±43 in 3T) (p<0.05 and p<0.01). Interobserver agreement of native T1 mapping and LGE were not significantly different (0.88 and 0.89, P=0.70). Overall diagnostic accuracy of native T1 mapping for detection of MF in a patient-based analysis, was not significantly different in between the cases with ischemic (n=18) and non-ischemic (n=22) myocardial disease (90% and 83.3%, P=0.10).
Conclusion
Native T1 mapping (without contrast) is useful for detection of MF in various myocardial diseases and high diagnostic accuracy is expected especially in a patient-based analysis.
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Affiliation(s)
- H Goto
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - H Takaoka
- Chiba University Graduate School of Medicine, Chiba, Japan
| | - T Sakai
- Eastern Chiba Medical Center, Radiology, Togane, Japan
| | - S Ochi
- Eastern Chiba Medical Center, Radiology, Togane, Japan
| | - S Wakabayashi
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - K Ishikawa
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - T Kanaeda
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - M Daimon
- Chiba University Graduate School of Medicine, Chiba, Japan
| | - M Ueda
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - N Funabashi
- Chiba University Graduate School of Medicine, Chiba, Japan
| | - K Sano
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - Y Kobayashi
- Chiba University Graduate School of Medicine, Chiba, Japan
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12
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Goto H, Takaoka H, Sakai T, Ochi S, Wakabayashi S, Ishikawa K, Kanaeda T, Ueda M, Funabashi N, Sano K, Kobayashi Y. P6182Combination of a new iterative reconstruction technique with low tube voltage and high tube current has important role of detection of late enhancement on 320 slice CT. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
New iterative reconstruction tecniques, including Adaptive Iterative Dose Reduction 3D (AIDR 3D) and Forward Projected Model-based Iterative Reconstruction SoluTion (FIRST), have been recently available on new generation 320 slice CT, and they can provide high-quality CT images.
Purpose
The aim of this study was to evaluate the diagnostic performance of detection of abnormal late enhancement (LE) in left ventricular (LV) myocardium (LVM) using 320-slice CT with new iterative reconstruction techiniques, AIDR 3D (Figure A) and FIRST (Figure B).
Methods
A total of 100 patients who were suspected of having various myocardial diseases and underwent late phase acquisition both on cardiac CT and CMR within 3 months were analyzed. The first 50 consecutive patients (Group 1) underwent 320-slice CT with AIDR 3D, 120 Kv tube voltage, 519±71 mA tube current. The next 50 consecutive patients (Group 2) underwent 320-slice CT with FIRST, 80 or 100Kv tube voltage, 803±20 mA tube current. We compared diagnostic accuracy of CT for detection of LE in LVM against that of CMR (the gold standard) in between the 2 groups.
Results
On patient-by-patient analysis, sensitivity, specificity, positive (PPV) and negative predictive values (NPV), and overall accuracy for detection of LE on CT vs CMR were 87, 95, 96, 82, and 90% in Group 1, and 97, 83, 91, 88, and 90% in Group 2. There were no significant difference of diagnostic accuracy on patient-by-patient analysis in between the 2 groups (Figure C). However, on a segment-by-segment analysis (using 17 American Heart Association LV segment model), these values for detection of LE on CT vs CMR were 60, 95, 73, 91, and 88% in Group 1, and 85, 95, 86, 95, and 93% in Group 2. Sensitivity, PPV, NPV and overall accuracy were significantly higher in Group 2 than in Group 1 (all P<0.01) (Figure D).
Conclusions
Diagnostic accuracy of detection of LE in LVM on CT combining low tube voltage and high tube current acquisition on a new generation 320-slice CT with FIRST was superior to 320-slice CT with AIDR 3D.
Acknowledgement/Funding
TSUCHIYA MEMORIAL MEDICAL FOUNDATION
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Affiliation(s)
- H Goto
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - H Takaoka
- Chiba University Graduate School of Medicine, Chiba, Japan
| | - T Sakai
- Eastern Chiba Medical Center, Radiology, Togane, Japan
| | - S Ochi
- Eastern Chiba Medical Center, Radiology, Togane, Japan
| | - S Wakabayashi
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - K Ishikawa
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - T Kanaeda
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - M Ueda
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - N Funabashi
- Chiba University Graduate School of Medicine, Chiba, Japan
| | - K Sano
- Eastern Chiba Medical Center, Cardiology, Togane, Japan
| | - Y Kobayashi
- Chiba University Graduate School of Medicine, Chiba, Japan
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13
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Goto H, Tada A, Ibe A, Kitajima Y. Basket-weave structure in the stratum corneum is an important factor for maintaining the physiological properties of human skin as studied using reconstructed human epidermis and tape stripping of human cheek skin. Br J Dermatol 2019; 182:364-372. [PMID: 31077338 DOI: 10.1111/bjd.18123] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND The normal stratum corneum (SC) has an upper basket-weave (BW) pattern layer and a lower compact layer. The transition from compact to BW SC is well associated with a transition from diffuse to peripheral distributions of corneodesmosomes (CDs). The loss of transition from compact SC to BW SC appears to cause structural and barrier-function impairments. OBJECTIVES To show the involvement of the BW SC in maintaining the physiological properties of the skin. METHODS Reconstructed human epidermis (RHE) with a complete BW structure was created by treatment with prepared emulsion-A, an oil-in-water emulsion. The RHE tissues were subjected to histological analysis, and the distribution of CDs on the SC with or without BW SC was analysed by anti-desmoglein (Dsg)1 antibody immunofluorescence and ultrastructural and Western blotting analyses. Ultrastructural analysis of intercellular lipids was performed. The mechanical properties of the RHE were evaluated. RESULTS Emulsion-A successfully generated the BW SC in the RHE in which the degradation of CDs was promoted. The intercellular space of the BW SC generated by emulsion-A was filled with multilamellar lipid sheets. The softness of the SC with a BW structure formed with emulsion-A was higher than that of the compact SC in RHE. The outermost SC Dsg1 degradation (formation of the BW SC as determined with Dsg1 pixels) was correlated with water-barrier functions and the SC softness of healthy human cheek, which varied widely. CONCLUSIONS Emulsion-A successfully generated the BW SC in RHE for the first time. This method is suggested to be a useful tool for investigating the physiological significance of the BW SC in vitro. Determination of Dsg1 content in the SC obtained by tape stripping from human skin allows study of the effects of external stimulants, such as creams and ointments, including cosmetics, on the completeness of the BW SC in situ without biopsy. What's already known about this topic? The normal stratum corneum (SC) has two layers, an upper basket-weave (BW) pattern layer and a lower compact layer. Epidermal diseases such as ichthyosis vulgaris and X-linked ichthyosis have an incomplete or no BW SC and impaired SC barrier functions, in which corneodesmosome (CD) degradation in a peripheral distribution is impaired. The roles of the BW SC in the physiological properties of human skin have not been clearly elucidated. What does this study add? Reconstructed human epidermis (RHE) with a complete BW structure was generated for the first time by treatment with oil-in-water emulsion-A. The formation of the BW SC was associated with a decrease in Dsg1 content, which represents the CD number in the SC. The intercellular space of the BW SC generated by emulsion-A, but not compact SC, was filled with multilamellar lipid sheets. The softness of the SC with a BW structure formed by emulsion-A treatment was higher than that of the compact SC in RHE. What is the translational message? RHE with a complete BW SC generated by emulsion-A treatment is suggested to be a useful tool for investigating effects on the physiological functions of the BW SC, as in treatments with creams and ointments including cosmetics. Determination of desmoglein 1 content in the SC obtained by tape stripping from human skin can make it possible to study the effects of external stimulants, such as creams and ointments, including cosmetics, on the completeness of the BW SC in situ without biopsy.
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Affiliation(s)
- H Goto
- Product Development Department, POLA Chemical Industries, Inc., 560 Kashio-cho, Totsuka-ku, Yokohama, 244-0812, Japan
| | - A Tada
- Product Development Department, POLA Chemical Industries, Inc., 560 Kashio-cho, Totsuka-ku, Yokohama, 244-0812, Japan
| | - A Ibe
- Frontier Research Center, POLA Chemical Industries, Inc., 560 Kashio-cho, Totsuka-ku, Yokohama, 244-0812, Japan
| | - Y Kitajima
- Department of Dermatology, Kizawa Memorial Hospital, 590 Shimokobi, Kobi, Minokamo, Gifu, 505-8503, Japan
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14
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Goto H, Natsume T, Kanemaki MT, Kaito A, Wang S, Gabazza EC, Inagaki M, Mizoguchi A. Chk1-mediated Cdc25A degradation as a critical mechanism for normal cell cycle progression. J Cell Sci 2019; 132:jcs.223123. [PMID: 30635443 DOI: 10.1242/jcs.223123] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 01/02/2019] [Indexed: 12/13/2022] Open
Abstract
Chk1 (encoded by CHEK1 in mammals) is an evolutionarily conserved protein kinase that transduces checkpoint signals from ATR to Cdc25A during the DNA damage response (DDR). In mammals, Chk1 also controls cellular proliferation even in the absence of exogenous DNA damage. However, little is known about how Chk1 regulates unperturbed cell cycle progression, and how this effect under physiological conditions differs from its regulatory role in DDR. Here, we have established near-diploid HCT116 cell lines containing endogenous Chk1 protein tagged with a minimum auxin-inducible degron (mAID) through CRISPR/Cas9-based gene editing. Establishment of these cells enabled us to induce specific and rapid depletion of the endogenous Chk1 protein, which resulted in aberrant accumulation of DNA damage factors that induced cell cycle arrest at S or G2 phase. Cdc25A was stabilized upon Chk1 depletion before the accumulation of DNA damage factors. Simultaneous depletion of Chk1 and Cdc25A partially suppressed the defects caused by Chk1 single depletion. These results indicate that, similar to its function in DDR, Chk1 controls normal cell cycle progression mainly by inducing Cdc25A degradation.
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Affiliation(s)
- Hidemasa Goto
- Department of Neural Regeneration and Cell Communication, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Toyoaki Natsume
- Department of Chromosome Science, National Institute of Genetics, Research Organization of Information and Systems (ROIS), Mishima, Shizuoka 411-8540, Japan.,Department of Genetics, The Graduate University for Advanced Studies (SOKENDAI), Mishima, Shizuoka 411-8540, Japan
| | - Masato T Kanemaki
- Department of Chromosome Science, National Institute of Genetics, Research Organization of Information and Systems (ROIS), Mishima, Shizuoka 411-8540, Japan.,Department of Genetics, The Graduate University for Advanced Studies (SOKENDAI), Mishima, Shizuoka 411-8540, Japan
| | - Aika Kaito
- Department of Physiology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Shujie Wang
- Department of Neural Regeneration and Cell Communication, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Esteban C Gabazza
- Department of Immunology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Masaki Inagaki
- Department of Physiology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Akira Mizoguchi
- Department of Neural Regeneration and Cell Communication, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
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15
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Tanaka K, Goto H, Nishimura Y, Kasahara K, Mizoguchi A, Inagaki M. Tetraploidy in cancer and its possible link to aging. Cancer Sci 2018; 109:2632-2640. [PMID: 29949679 PMCID: PMC6125447 DOI: 10.1111/cas.13717] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [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: 05/01/2018] [Accepted: 06/26/2018] [Indexed: 12/23/2022] Open
Abstract
Tetraploidy, a condition in which a cell has four homologous sets of chromosomes, is often seen as a natural physiological condition but is also frequently seen in pathophysiological conditions such as cancer. Tetraploidy facilitates chromosomal instability (CIN), which is an elevated level of chromosomal loss and gain that can cause production of a wide variety of aneuploid cells that carry structural and numerical aberrations of chromosomes. The resultant genomic heterogeneity supposedly expedites karyotypic evolution that confers oncogenic potential in spite of the reduced cellular fitness caused by aneuploidy. Recent studies suggest that tetraploidy might also be associated with aging; mice with mutations in an intermediate filament protein have revealed that these tetraploidy‐prone mice exhibit tissue disorders associated with aging. Cellular senescence and its accompanying senescence‐associated secretory phenotype have now emerged as critical factors that link tetraploidy and tetraploidy‐induced CIN with cancer, and possibly with aging. Here, we review recent findings about how tetraploidy is related to cancer and possibly to aging, and discuss underlying mechanisms of the relationship, as well as how we can exploit the properties of cells exhibiting tetraploidy‐induced CIN to control these pathological conditions.
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Affiliation(s)
- Kozo Tanaka
- Department of Molecular Oncology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hidemasa Goto
- Department of Neural Regeneration and Cell Communication, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yuhei Nishimura
- Department of Integrative Pharmacology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Kousuke Kasahara
- Department of Physiology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Akira Mizoguchi
- Department of Neural Regeneration and Cell Communication, Mie University Graduate School of Medicine, Tsu, Japan
| | - Masaki Inagaki
- Department of Physiology, Mie University Graduate School of Medicine, Tsu, Japan
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16
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Kimura R, Sugita K, Goto H, Yamamoto O. A small nodule on the auricle. Clin Exp Dermatol 2018; 44:203-205. [PMID: 29851135 DOI: 10.1111/ced.13636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2018] [Indexed: 11/27/2022]
Affiliation(s)
- R Kimura
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University, Faculty of Medicine, Yonago, Japan
| | - K Sugita
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University, Faculty of Medicine, Yonago, Japan
| | - H Goto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University, Faculty of Medicine, Yonago, Japan
| | - O Yamamoto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Tottori University, Faculty of Medicine, Yonago, Japan
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17
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Imai H, Kamei H, Onishi Y, Ishizu Y, Ishigami M, Goto H, Ogura Y. Diagnostic Usefulness of APRI and FIB-4 for the Prediction of Liver Fibrosis After Liver Transplantation in Patients Infected with Hepatitis C Virus. Transplant Proc 2018; 50:1431-1436. [PMID: 29705278 DOI: 10.1016/j.transproceed.2018.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 03/01/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Aspartate transaminase-to-platelet ratio index (APRI) and fibrosis-4 (FIB-4) are well known as representative indirect serum biomarkers related to liver fibrosis. The usefulness of these markers for the diagnosis of liver fibrosis after liver transplantation (LT) in hepatitis C virus (HCV)-infected patients and the influence of splenectomy were investigated. METHODS From June 2003 to May 2014, 31 HCV-infected patients who underwent LT and postoperative follow-up liver biopsies were included in this study. The association between liver fibrosis and serum biomarkers and the influence of splenectomy on APRI and FIB-4 were also investigated. RESULTS A total of 195 biopsy specimens were collected, and liver fibrosis was identified as: F0, 59.7%; F1, 34.1%; and F2, 6.3%. Both APRI and FIB-4 were significantly higher in patients who showed F1 and F2 in liver biopsy specimen than F0 (P values, .009 and .022, respectively); sensitivity and specificity of APRI were, respectively, 63.4% and 66.7%, and those of FIB-4 were 57.7% and 69.6%. In 11 patients (35.5%) who underwent splenectomy at the time of LT, the cutoff values for APRI and FIB-4 were 0.61 and 1.41, which were significantly lower than the corresponding values (1.00 and 3.64) of patients without splenectomy. CONCLUSIONS APRI and FIB-4 could effectively estimate liver fibrosis after LT for HCV-related liver disease. For LT patients with splenectomy, APRI and FIB-4 were also useful to estimate liver fibrosis, but the standard values should be adjusted lower than those for patients without splenectomy.
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Affiliation(s)
- H Imai
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan
| | - H Kamei
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan
| | - Y Onishi
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan
| | - Y Ishizu
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - M Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - H Goto
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - Y Ogura
- Department of Transplantation Surgery, Nagoya University School of Medicine, Nagoya, Japan.
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18
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Inaba H, Yamakawa D, Tomono Y, Enomoto A, Mii S, Kasahara K, Goto H, Inagaki M. Regulation of keratin 5/14 intermediate filaments by CDK1, Aurora-B, and Rho-kinase. Biochem Biophys Res Commun 2018. [DOI: 10.1016/j.bbrc.2018.03.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Suzuki C, Kiyota N, Imamura Y, Goto H, Suto H, Chayahara N, Toyoda M, Ito Y, Miya A, Miyauchi A, Otsuki N, Nibu K, Minami H. Exploratory Analysis of Prognostic and Predictive Factors of Lenvatinib for Radioiodine-Refractory Differentiated Thyroid Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2017.12.204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Matsuda S, Suzuki S, Morimoto K, Aono A, Nishio K, Asakura T, Sasaki Y, Namkoong H, Nishimura T, Ogata H, Hasegawa N, Kurashima A, Ishii M, Tatsumi K, Mitarai S, Goto H. Mycobacterium triplex pulmonary disease with acquired macrolide resistance in immunocompetent patients. Clin Microbiol Infect 2018; 24:671-672. [PMID: 29309938 DOI: 10.1016/j.cmi.2017.12.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/25/2017] [Accepted: 12/26/2017] [Indexed: 11/26/2022]
Affiliation(s)
- S Matsuda
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - S Suzuki
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - K Morimoto
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan; Division of Clinical Research, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan.
| | - A Aono
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - K Nishio
- Department of Respiratory Medicine, Kawasaki Municipal Ida Hospital, Kanagawa, Japan
| | - T Asakura
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Y Sasaki
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - H Namkoong
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - T Nishimura
- Health Centre, Keio University, Tokyo, Japan
| | - H Ogata
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - N Hasegawa
- Centre for Infectious Diseases and Infection Control, Keio University School of Medicine, Tokyo, Japan
| | - A Kurashima
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - M Ishii
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - K Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S Mitarai
- Department of Mycobacterium Reference and Research, The Research Institute of Tuberculosis, Japan Anti-Tuberculosis Association, Tokyo, Japan
| | - H Goto
- Respiratory Disease Centre, Fukujuji Hospital, Japan Anti-Tuberculosis Association, Tokyo, Japan
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Fujiyoshi T, Tajika M, Tanaka T, Ishihara M, Mizuno N, Hara K, Hijioka S, Imaoka H, Yatabe Y, Hirooka Y, Goto H, Yamao K, Niwa Y. Comparative evaluation of new and conventional classifications of magnifying endoscopy with narrow band imaging for invasion depth of superficial esophageal squamous cell carcinoma. Dis Esophagus 2017; 30:1-8. [PMID: 28881897 DOI: 10.1093/dote/dox037] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Indexed: 12/11/2022]
Abstract
A new classification of magnifying endoscopy with narrow band imaging (ME-NBI) for diagnosing and staging superficial esophageal squamous cell carcinoma (SESCC) was proposed by the Japan Esophageal Society in 2011. This study aimed to compare the new classification with the conventional classifications (Inoue's classification and Arima's classification). This was a prospective analysis of data from a single cancer center involving 151 consecutive patients with 156 SESCCs that were endoscopically or surgically resected. Initially, only ME-NBI images were selected and reviewed independently by three experienced endoscopists. White light imaging (WLI) was then evaluated separately after an interval. The diagnostic performance of each classification and interobserver agreement were assessed, and the WLI findings that affect the diagnosis by the new classification were identified. The specificity for classifying invasive depth as epithelium (EP)/lamina propria mucosae (LPM) confined was higher with the new classification than with Inoue's classification (0.512 vs. 0.349; P = 0.02) and Arima's classification (0.512 vs. 0.279; P < 0.01). However, the sensitivity was lower (0.902 vs. 1.000; P < 0.01) compared with Arima's classification. The concordance rates of three evaluators (κ values) were 0.52 for the new classification, 0.50 for Inoue's classification, and 0.23 for Arima's classification. On multivariate analysis, thickness on WLI independently affected the accuracy of diagnosis with the new classification (OR 3.23; 95%CI, 1.30-8.03). The new classification is superior to conventional classifications with respect to specificity for diagnosing SESCC with depth EP/LPM. Thickness on WLI was a factor negatively affecting the diagnostic performance of the new classification.
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Affiliation(s)
- T Fujiyoshi
- Departments of Gastroenterology.,Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan
| | | | | | | | | | - K Hara
- Departments of Gastroenterology
| | | | | | - Y Yatabe
- Pathology and Molecular Diagnosis, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Y Hirooka
- Department of Endoscopy, Nagoya University Hospital, Nagoya, Japan
| | - H Goto
- Departments of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Yamao
- Departments of Gastroenterology
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22
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Shibayama A, Sugita K, Narukawa K, Fujiwara Y, Goto H, Shiomi T, Yoshida Y, Yamamoto O. Granuloma annulare can occur on a scar, mimicking sarcoidosis. Clin Exp Dermatol 2017; 42:920-921. [PMID: 28929530 DOI: 10.1111/ced.13210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2017] [Indexed: 02/01/2023]
Affiliation(s)
- A Shibayama
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Yonago, Japan
| | - K Sugita
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Yonago, Japan
| | - K Narukawa
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Yonago, Japan
| | - Y Fujiwara
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Yonago, Japan
| | - H Goto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Yonago, Japan
| | - T Shiomi
- Division of Organ Pathology, Department of Pathology, Tottori University Faculty of Medicine, Yonago, Japan
| | - Y Yoshida
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Yonago, Japan
| | - O Yamamoto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Yonago, Japan
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23
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Takamasu T, Wada M, Taguchi M, Goto H, Taniguchi H. MON-P271: Effect of Intervention of Childhood Cancer Nutrition Project Team for Acute Lymphocytic Leukemia. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30818-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Takasugi N, Goto H, Verrier R, Takasugi M, Kuwahara T, Nakashima T, Kubota T, Kawasaki M, Nishigaki K, Minatoguchi S. P5503Effect of beta-blockade on quantitative microvolt T-wave alternans measured in 24-hour continuous 12-lead ECGs in patients with long QT syndrome. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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25
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Goto H, Kariya R, Kudo E, Okuno Y, Ueda K, Katano H, Okada S. Restoring PU.1 induces apoptosis and modulates viral transactivation via interferon-stimulated genes in primary effusion lymphoma. Oncogene 2017; 36:5252-5262. [PMID: 28481873 DOI: 10.1038/onc.2017.138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/22/2017] [Accepted: 03/24/2017] [Indexed: 12/20/2022]
Abstract
Primary effusion lymphoma (PEL), which is an aggressive subgroup of B-cell lymphoma associated with Kaposi sarcoma-associated herpes virus/human herpes virus-8, is refractory to the standard treatment, and exhibits a poor survival. Although PU.1 is downregulated in PEL, the potential role of its reduction remains to be elucidated. In this investigation, we analyzed the DNA methylation of PU.1 cis-regulatory elements in PEL and the effect of restoring PU.1 on PEL cells. The mRNA level of PU.1 was downregulated in PEL cells. The methylated promoter and enhancer regions of the PU.1 gene were detected in PEL cells. Suppression of cell growth and apoptosis were caused by the restoration of PU.1 in PEL cells. A microarray analysis revealed that interferon-stimulated genes (ISGs) including pro-apoptotic ISGs were strongly increased in BCBL-1 cells after the induction of PU.1. Reporter assays showed that PU.1 transactivated pro-apoptotic ISG promoters, such as the XAF1, OAS1 and TRAIL promoters. Mutations at the PU.1 binding sequences suppressed its transactivation. We confirmed the binding of PU.1 to the XAF1, OAS1 and TRAIL promoters in a chromatin immunoprecipitation assay. PU.1 suppressed ORF57 activation by inducing IRF7. The reinduction of PU.1 reduced formation of ascites and lymphoma cell infiltration of distant organs in PEL xenograft model mice. Collectively, PU.1 has a role in tumor suppression in PEL and its down-regulation is associated with PEL development. Restoring PU.1 with demethylation agents may be a novel therapeutic approach for PEL.
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Affiliation(s)
- H Goto
- Division of Hematopoiesis, Center for AIDS Research, Kumamoto University, Honjo, Kumamoto, Japan
| | - R Kariya
- Division of Hematopoiesis, Center for AIDS Research, Kumamoto University, Honjo, Kumamoto, Japan
| | - E Kudo
- Division of Hematopoiesis, Center for AIDS Research, Kumamoto University, Honjo, Kumamoto, Japan
| | - Y Okuno
- Departments of Hematology, Rheumatology, and Infectious Disease, Kumamoto University Graduate School of Medicine, Honjo, Kumamoto, Japan
| | - K Ueda
- Division of Virology, Department of Microbiology and Immunology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - H Katano
- Department of Pathology, National Institute of Infectious Diseases, Toyama, Shinjuku, Tokyo, Japan
| | - S Okada
- Division of Hematopoiesis, Center for AIDS Research, Kumamoto University, Honjo, Kumamoto, Japan
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26
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Otsubo K, Goto H, Nishio M, Kawamura K, Yanagi S, Nishie W, Sasaki T, Maehama T, Nishina H, Mimori K, Nakano T, Shimizu H, Mak TW, Nakao K, Nakanishi Y, Suzuki A. MOB1-YAP1/TAZ-NKX2.1 axis controls bronchioalveolar cell differentiation, adhesion and tumour formation. Oncogene 2017; 36:4201-4211. [PMID: 28346423 DOI: 10.1038/onc.2017.58] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 01/29/2017] [Accepted: 02/04/2017] [Indexed: 12/18/2022]
Abstract
Mps One Binder Kinase Activator (MOB)1A/1B are core components of the Hippo pathway. These proteins, which coactivate LArge Tumour Suppressor homologue kinases, are also tumour suppressors. To investigate MOB1A/B's roles in normal physiology and lung cancer, we generated doxycycline (Dox)-inducible, bronchioalveolar epithelium-specific, null mutations of MOB1A/B in mice (SPC-rtTA/(tetO)7-Cre/Mob1aflox/flox/Mob1b-/-; termed luMob1DKO mice). Most mutants (70%) receiving Dox in utero (luMob1DKO (E6.5-18.5) mice) died of hypoxia within 1 h post-birth. Their alveolar epithelial cells showed increased proliferation, impaired YAP1/TAZ-dependent differentiation and decreased surfactant protein production, all features characteristic of human respiratory distress syndrome. Intriguingly, mutant mice that received Dox postnatally (luMob1DKO (P21-41) mice) did not develop spontaneous lung adenocarcinomas, and urethane treatment-induced lung tumour formation was decreased (rather than increased). Lungs of luMob1DKO (P21-41) mice exhibited increased detachment of bronchiolar epithelial cells and decreased numbers of the bronchioalveolar stem cells thought to initiate lung adenocarcinomas. YAP1/TAZ-NKX2.1-dependent expression of collagen XVII, a key hemidesmosome component, was also reduced. Thus, a MOB1-YAP1/TAZ-NKX2.1 axis is essential for normal lung homeostasis and expression of the collagen XVII protein necessary for alveolar stem cell maintenance in the lung niche.
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Affiliation(s)
- K Otsubo
- Division of Cancer Genetics, Medical Institute of Bioregulation, Fukuoka, Japan.,Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Goto
- Division of Cancer Genetics, Medical Institute of Bioregulation, Fukuoka, Japan
| | - M Nishio
- Division of Cancer Genetics, Medical Institute of Bioregulation, Fukuoka, Japan.,Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - K Kawamura
- Faculty of Science and Engineering, Waseda University, Tokyo, Japan
| | - S Yanagi
- Division of Neurology, Respirology, Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki, Kiyotake, Miyazaki, Japan
| | - W Nishie
- Department of Dermatology, Hokkaido University, Graduate School of Medicine, Sapporo, Japan
| | - T Sasaki
- Department of Medical Biology, Akita University Graduate School of Medicine, Akita, Japan
| | - T Maehama
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Tokyo, Japan
| | - H Nishina
- Department of Developmental and Regenerative Biology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Mimori
- Department of Surgery, Kyushu University, Beppu Hospital, Beppu, Oita, Japan
| | - T Nakano
- Department of Pathology, Medical School and Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka, Japan
| | - H Shimizu
- Department of Dermatology, Hokkaido University, Graduate School of Medicine, Sapporo, Japan
| | - T W Mak
- The Campbell Family Institute for Cancer Research, University Health Network, Toronto, Ontario, Canada
| | - K Nakao
- Medical Innovation Center, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Y Nakanishi
- Research Institute for Diseases of the Chest, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - A Suzuki
- Division of Cancer Genetics, Medical Institute of Bioregulation, Fukuoka, Japan.,Division of Molecular and Cellular Biology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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27
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Tanaka O, Saitake T, Takahashi T, Takayoshi I, Kasahara S, Goto H. Low dose palliative radiotherapy for refractory aggressive lymphoma. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30404-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Tokodai K, Kawagishi N, Miyagi S, Nakanishi C, Hara Y, Fujio A, Kashiwadate T, Maida K, Goto H, Kamei T, Ohuchi N. The Significance of Screening for HLA Antibodies in the Long-Term Follow-up of Pediatric Liver Transplant Recipients. Transplant Proc 2017; 48:1139-41. [PMID: 27320574 DOI: 10.1016/j.transproceed.2015.12.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/07/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Post-transplant donor-specific anti-HLA antibodies (DSA) reportedly have detrimental effects on the outcomes of organ transplantation. However, the prevalence of post-transplant DSA in the long term after pediatric liver transplantation remains unclear, and the significance of post-transplant DSA is unknown. The aim of this cross-sectional study was to determine the prevalence of and characteristics of patients with post-transplant DSA. MATERIALS AND METHODS Of the 84 pediatric liver transplant recipients who were followed up in the outpatient department of our institution, 34 patients with available HLA typing data were included after they or their parent(s) provided informed consent for DSA evaluations. Luminex single-antigen bead assays were performed, and a mean fluorescence intensity of ≥1000 was used as the cut-off for a positive reaction. RESULTS No class I DSA were detected, whereas class II DSA were detected in 11 patients (32%). There were no differences in age at transplantation, immunosuppressive drugs, or follow-up period between the DSA-positive and DSA-negative patients. The rate of positive pre-transplant complement-dependent cytotoxicity crossmatch was higher with class II DSA than without, although the difference was not statistically significant. CONCLUSIONS The utility of screening for class I DSA was insignificant in the long-term follow-up of pediatric liver transplant recipients. The prevalence of class II DSA was relatively high; therefore, screening for class II DSA might be justified, although a follow-up survey of the association between post-transplant class II DSA and the long-term clinical course needs to be conducted.
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Affiliation(s)
- K Tokodai
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan.
| | - N Kawagishi
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - S Miyagi
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - C Nakanishi
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - Y Hara
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - A Fujio
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - T Kashiwadate
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - K Maida
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - H Goto
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - T Kamei
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
| | - N Ohuchi
- Department of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan
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29
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Eguchi N, Kawabata K, Goto H. Synthesis of electro-optically active polymer composite of poly[2,2'-bis(3,4-ethylenedioxythiophene)-alt-fluorene]/hydroxypropyl cellulose showing liquid crystal structure. EXPRESS POLYM LETT 2017. [DOI: 10.3144/expresspolymlett.2017.80] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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30
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Honda T, Ishigami M, Ishizu Y, Kuzuya T, Hayashi K, Ishikawa T, Murakami Y, Iwadate M, Umeyama H, Toyoda H, Kumada T, Katano Y, Goto H, Hirooka Y. Core I97L mutation in conjunction with P79Q is associated with persistent low HBV DNA and HBs antigen clearance in patients with chronic hepatitis B. Clin Microbiol Infect 2016; 23:407.e1-407.e7. [PMID: 27998820 DOI: 10.1016/j.cmi.2016.12.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 11/21/2016] [Accepted: 12/12/2016] [Indexed: 01/04/2023]
Abstract
OBJECTIVES When considering treatment for chronic hepatitis B (CHB), it is important to discriminate between patients with persistent low HBV DNA and patients with active hepatitis, who may proceed to cirrhosis. In this study, we sought to identify mutations in patients expected to have persistent low HBV DNA and ultimately exhibit clearance of hepatitis B surface antigen (HBsAg). METHODS Serum samples were obtained from 33 CHB genotype C patients, divided based on HBV DNA and alanine aminotransferase (ALT) levels following observation for >2 years: Group A (n=10), transient HBV DNA ≥5.0 log copies/mL and ALT ≥120 IU/L; Group B (n=11), persistent HBV DNA <5.0 and ALT <60; and Group C (n=12), persistent HBV DNA <4.0 and ALT <30. Full-length HBV sequences were compared among groups. Subsequently, 82 patients with CHB were evaluated for the I97L mutation and the additional mutation P79Q. We compared cumulative incidences of persistent low HBV DNA and HBsAg clearance in patients with or without I97L and P79Q by the Kaplan-Meier method. RESULTS Incidence of Core mutation I97L differed significantly among groups: A, 30% (3/10); B, 36.4% (4/11); C, 83.3% (10/12) (p = 0.021). Cumulative incidences of persistent low HBV DNA and HBsAg clearance were significantly higher in patients with I97L than in those with wild-type I97 (p = 0.003 and p = 0.016, respectively), and even higher in those with P79Q. CONCLUSIONS In patients with CHB, measurement of I97L and additional mutation P79Q would be useful for predicting persistent low HBV DNA, normal ALT, and HBsAg clearance.
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Affiliation(s)
- T Honda
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - M Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Y Ishizu
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Kuzuya
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Hayashi
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Ishikawa
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Murakami
- Department of Hepatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Iwadate
- Department of Biological Science, Chuo University, Tokyo, Japan
| | - H Umeyama
- Department of Biological Science, Chuo University, Tokyo, Japan
| | - H Toyoda
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Gifu, Japan
| | - T Kumada
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, Gifu, Japan
| | - Y Katano
- Department of Gastroenterology, Banbuntane Hotokukai Hospital, Fujita Health University, School of Medicine, Nagoya, Japan
| | - H Goto
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Hirooka
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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31
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Atagi S, Tamiya A, Fukuda S, Naoki Y, Morimoto M, Ibe T, Okishio K, Goto H, Yoshii A, Kita T, Tomizawa Y, Nogami N, Fujita Y. A phase I / II trial of pemetrexed plus radiation therapy in elderly patients with locally advanced NSCLC. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw382.05] [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: 11/14/2022] Open
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32
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Abstract
The primary cilium is a non-motile and microtubule-enriched protrusion ensheathed by plasma membrane. Primary cilia function as mechano/chemosensors and signaling hubs and their disorders predispose to a wide spectrum of human diseases. Most types of cells assemble their primary cilia in response to cellular quiescence, whereas they start to retract the primary cilia upon cell-cycle reentry. The retardation of ciliary resorption process has been shown to delay cell-cycle progression to the S or M phase after cell-cycle reentry. Apart from this conventional concept of ciliary disassembly linked to cell-cycle reentry, recent studies have led to a novel concept, suggesting that cells can suppress primary cilia assembly during cell proliferation. Accumulating evidence has also demonstrated the importance of Aurora-A (a protein originally identified as one of mitotic kinases) not only in ciliary resorption after cell-cycle reentry but also in the suppression of ciliogenesis in proliferating cells, whereas Aurora-A activators are clearly distinct in both phenomena. Here, we summarize the current knowledge of how cycling cells suppress ciliogenesis and compare it with mechanisms underlying ciliary resorption after cell-cycle reentry. We also discuss a reciprocal relationship between primary cilia and cell proliferation.
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Affiliation(s)
- Hidemasa Goto
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan. .,Department of Cellular Oncology, Graduate School of Medicine, Nagoya University, Nagoya, 466-8550, Japan.
| | - Hironori Inaba
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan
| | - Masaki Inagaki
- Department of Physiology, Mie University School of Medicine, Tsu, Mie, Japan.
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33
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Takeda K, Goto H, Hirooka Y, Itoh A, Hashimoto S, Niwa K, Hayakawa T. Contrast-enhanced transabdominal ultrasonography in the diagnosis of pancreatic mass lesions. Acta Radiol 2016. [DOI: 10.1258/rsmacta.44.1.103] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Purpose: In this study, we evaluated the diagnostic usefulness of contrast-enhanced transabdominal ultrasonography (CE-US) in pancreatic mass lesions that could be detected by US. Material and Methods: CE-US was performed in 37 patients with various pancreatic mass lesions to evaluate the characteristic vascular findings. Results: Pancreatic tubular adenocarcinoma showed negative enhancement pattern in 16 cases and a slight spotty enhancement pattern in 5 cases. Poorly differentiated adenocarcinoma showed slight homogeneous enhancement pattern in 1 case and acinar cell carcinoma was expressed as a heterogeneous enhancement pattern in 3 cases on CE-US. Endocrine cell tumor had a strong homogeneous enhancement pattern in 3 cases, a strong central enhancement in 1 case and a strong peripheral enhancement in 2 cases. Pseudotumorous pancreatitis showed an iso-enhancement pattern in 6 cases. Conclusion: CE-US is useful in evaluating the vascularity of the lesions in various pancreatic mass lesions in real-time images, and may be useful for the differential diagnosis of pancreatic mass lesions.
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Affiliation(s)
- K. Takeda
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - H. Goto
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
- Department of Endoscopy, Nagoya University School of Medicine, Nagoya, Japan
| | - Y. Hirooka
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
- Department of Endoscopy, Nagoya University School of Medicine, Nagoya, Japan
| | - A. Itoh
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - S. Hashimoto
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - K. Niwa
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - T. Hayakawa
- Second Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
- Department of Endoscopy, Nagoya University School of Medicine, Nagoya, Japan
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34
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Makihara H, Inaba H, Enomoto A, Tanaka H, Tomono Y, Ushida K, Goto M, Kurita K, Nishida Y, Kasahara K, Goto H, Inagaki M. Desmin phosphorylation by Cdk1 is required for efficient separation of desmin intermediate filaments in mitosis and detected in murine embryonic/newborn muscle and human rhabdomyosarcoma tissues. Biochem Biophys Res Commun 2016; 478:1323-9. [PMID: 27565725 DOI: 10.1016/j.bbrc.2016.08.122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 08/21/2016] [Indexed: 11/25/2022]
Abstract
Desmin is a type III intermediate filament (IF) component protein expressed specifically in muscular cells. Desmin is phosphorylated by Aurora-B and Rho-kinase specifically at the cleavage furrow from anaphase to telophase. The disturbance of this phosphorylation results in the formation of unusual long bridge-like IF structures (IF-bridge) between two post-mitotic (daughter) cells. Here, we report that desmin also serves as an excellent substrate for the other type of mitotic kinase, Cdk1. Desmin phosphorylation by Cdk1 loses its ability to form IFs in vitro. We have identified Ser6, Ser27, and Ser31 on murine desmin as phosphorylation sites for Cdk1. Using a site- and phosphorylation-state-specific antibody for Ser31 on desmin, we have demonstrated that Cdk1 phosphorylates desmin in entire cytoplasm from prometaphase to metaphase. Desmin mutations at Cdk1 sites exhibit IF-bridge phenotype, the frequency of which is significantly increased by the addition of Aurora-B and Rho-kinase site mutations to Cdk1 site mutations. In addition, Cdk1-induced desmin phosphorylation is detected in mitotic muscular cells of murine embryonic/newborn muscles and human rhabdomyosarcoma specimens. Therefore, Cdk1-induced desmin phosphorylation is required for efficient separation of desmin-IFs and generally detected in muscular mitotic cells in vivo.
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Affiliation(s)
- Hiroyuki Makihara
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan; Department of Oral and Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, 464-8651, Japan
| | - Hironori Inaba
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan
| | - Atsushi Enomoto
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Hiroki Tanaka
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan
| | - Yasuko Tomono
- Division of Molecular and Cell Biology, Shigei Medical Research Institute, Okayama, 701-0202, Japan
| | - Kaori Ushida
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Mitsuo Goto
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, 464-8651, Japan
| | - Kenichi Kurita
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, 464-8651, Japan
| | - Yoshihiro Nishida
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Kousuke Kasahara
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan; Department of Physiology, Mie University School of Medicine, Tsu, Mie, 514-8507, Japan
| | - Hidemasa Goto
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan; Department of Cellular Oncology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan.
| | - Masaki Inagaki
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan; Department of Physiology, Mie University School of Medicine, Tsu, Mie, 514-8507, Japan.
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Affiliation(s)
- M. Kondo
- Department of Dermatology; Yokkaichi Municipal Hospital; 2-37 Shibata Nichoume Yokkaichi Mie 510-8567 Japan
| | - S. Yamamoto
- Department of Dermatology; Yokkaichi Municipal Hospital; 2-37 Shibata Nichoume Yokkaichi Mie 510-8567 Japan
| | - H. Goto
- Department of Dermatology; Yokkaichi Municipal Hospital; 2-37 Shibata Nichoume Yokkaichi Mie 510-8567 Japan
| | - Y. Nara
- Department of Pathology; Yokkaichi Municipal Hospital; 2-37 Shibata Nichoume Yokkaichi Mie 510-8567 Japan
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Inaba H, Goto H, Kasahara K, Kumamoto K, Yonemura S, Inoko A, Yamano S, Wanibuchi H, He D, Goshima N, Kiyono T, Hirotsune S, Inagaki M. Ndel1 suppresses ciliogenesis in proliferating cells by regulating the trichoplein-Aurora A pathway. J Cell Biol 2016; 212:409-23. [PMID: 26880200 PMCID: PMC4754717 DOI: 10.1083/jcb.201507046] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [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: 12/30/2022] Open
Abstract
Ndel1, a protein located at the subdistal appendage of mother centriole, functions as an upstream regulator of the trichoplein–Aurora A pathway that suppresses ciliogenesis in proliferating cells. Primary cilia protrude from the surface of quiescent cells and disassemble at cell cycle reentry. We previously showed that ciliary reassembly is suppressed by trichoplein-mediated Aurora A activation pathway in growing cells. Here, we report that Ndel1, a well-known modulator of dynein activity, localizes at the subdistal appendage of the mother centriole, which nucleates a primary cilium. In the presence of serum, Ndel1 depletion reduces trichoplein at the mother centriole and induces unscheduled primary cilia formation, which is reverted by forced trichoplein expression or coknockdown of KCTD17 (an E3 ligase component protein for trichoplein). Serum starvation induced transient Ndel1 degradation, subsequent to the disappearance of trichoplein at the mother centriole. Forced expression of Ndel1 suppressed trichoplein degradation and axonemal microtubule extension during ciliogenesis, similar to trichoplein induction or KCTD17 knockdown. Most importantly, the proportion of ciliated and quiescent cells was increased in the kidney tubular epithelia of newborn Ndel1-hypomorphic mice. Thus, Ndel1 acts as a novel upstream regulator of the trichoplein–Aurora A pathway to inhibit primary cilia assembly.
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Affiliation(s)
- Hironori Inaba
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya 464-8681, Japan
| | - Hidemasa Goto
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya 464-8681, Japan Department of Cellular Oncology, Graduate School of Medicine, Nagoya University, Nagoya 466-8550, Japan
| | - Kousuke Kasahara
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya 464-8681, Japan Department of Oncology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya 467-8601, Japan
| | - Kanako Kumamoto
- Department of Genetic Disease Research, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Shigenobu Yonemura
- Center for Life Science Technologies (Ultrastructural Research Team), Institute of Physical and Chemical Research, Kobe 650-0047, Japan
| | - Akihito Inoko
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya 464-8681, Japan
| | - Shotaro Yamano
- Department of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Hideki Wanibuchi
- Department of Molecular Pathology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Dongwei He
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya 464-8681, Japan
| | - Naoki Goshima
- Molecular Profiling Research Center for Drug Discovery, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - Tohru Kiyono
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Shinji Hirotsune
- Department of Genetic Disease Research, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | - Masaki Inagaki
- Division of Biochemistry, Aichi Cancer Center Research Institute, Nagoya 464-8681, Japan Department of Cellular Oncology, Graduate School of Medicine, Nagoya University, Nagoya 466-8550, Japan
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Tachi Y, Hirai T, Kojima Y, Miyata A, Ohara K, Ishizu Y, Honda T, Kuzuya T, Hayashi K, Ishigami M, Goto H. Liver stiffness measurement using acoustic radiation force impulse elastography in hepatitis C virus-infected patients with a sustained virological response. Aliment Pharmacol Ther 2016; 44:346-55. [PMID: 27291657 DOI: 10.1111/apt.13695] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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] [Received: 01/10/2016] [Revised: 03/11/2016] [Accepted: 05/21/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Acoustic radiation force impulse (ARFI) elastography is a non-invasive method for measuring liver stiffness. However, there are no reports evaluating the value of ARFI elastography for liver fibrosis in chronic hepatitis C patients with a sustained virological response (SVR). AIM To investigate the diagnostic performance of ARFI elastography for the assessment of liver fibrosis in hepatitis C virus (HCV) infected patients with an SVR. METHODS In this prospective study, we enrolled 336 patients: 121 HCV patients with an SVR (44.6% women) and 215 patients with HCV (47.9% women). ARFI elastography measurements of all patients were performed on the same day of liver biopsy. RESULTS The diagnostic accuracies, expressed as areas under the receiver operating characteristic curves for ARFI elastography, in HCV patients with an SVR and those in patients with HCV were 0.818 and 0.875 for the diagnosis of significant fibrosis (≥F2), 0.909 and 0.888 for the diagnosis of severe fibrosis (≥F3), and 0.981 and 0.890 for the diagnosis of liver cirrhosis (F4), respectively. The optimum cut-off values for ARFI elastography were 1.26 m/s for ≥F2, 1.31 m/s for ≥F3 and 1.49 m/s for F4 in HCV patients with an SVR. The liver stiffness values were lower in patients with SVR compared with those in patients with HCV at the same stage of fibrosis. The liver stiffness values were affected by the necroinflammatory activity and the time after SVR. CONCLUSION Acoustic radiation force impulse elastography is an acceptable method for predicting the severity of fibrosis in patients with hepatitis C virus and a sustained viral response.
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Affiliation(s)
- Y Tachi
- Department of Gastroenterology, Komaki City Hospital, Komaki, Japan
| | - T Hirai
- Department of Gastroenterology, Komaki City Hospital, Komaki, Japan
| | - Y Kojima
- Department of Gastroenterology, Komaki City Hospital, Komaki, Japan
| | - A Miyata
- Department of Gastroenterology, Komaki City Hospital, Komaki, Japan
| | - K Ohara
- Department of Gastroenterology, Komaki City Hospital, Komaki, Japan
| | - Y Ishizu
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - T Honda
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - T Kuzuya
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - K Hayashi
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - M Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
| | - H Goto
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Nagoya, Japan
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Brézin A, Dick A, Jaffe G, Ohno S, Namba K, Goto H, Inomata N, Song A, Kron M, Camez A, Tari S, Nguyen Q. THU0561 Adalimumab in Patients with Active and Inactive, Non-Infectious Uveitis: Visual I and Visual II Trials. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.1738] [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: 11/03/2022]
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Kawaguchi Y, Waguri-Nagaya Y, Ikuta K, Tatematsu N, Kobayashi M, Goto H, Nozaki M, Asai K, Otsuka T. FRI0041 The JAK Inhibitor (Tofacitinib) Inhibits TNF-Induced Gliostatin/thymidine Phosphorylase Expression in Human Fibroblast-like Synoviocytes. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2889] [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: 11/03/2022]
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Miyagi S, Fujio A, Tokodai K, Hara Y, Nakanishi C, Goto H, Kamei T, Kawagishi N, Ohuchi N, Satomi S. Successful Case of Somatostatin Analog Stopping Gastrointestinal Bleeding, One of the Most Frequent Complications After Simultaneous Pancreas-kidney Transplantation: A Case Report. Transplant Proc 2016; 48:985-7. [PMID: 27234785 DOI: 10.1016/j.transproceed.2015.10.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 10/03/2015] [Indexed: 10/21/2022]
Abstract
OBJECT Pancreas transplantation has the highest surgical complication rate of all routinely performed organ transplantation procedures. The complications are not only caused by the pancreas itself but also occur due to issues with the transplant recipient. We report the case of a patient who experienced massive gastrointestinal bleeding after simultaneous pancreas-kidney transplantation (SPK), which was stopped successfully using somatostatin analog. PATIENTS AND METHODS The patient was a 45-year-old woman with diabetes mellitus type 1 who underwent SPK with enteric drainage. She had melena 5 days after SPK. RESULTS At first, we suspected that the melena was caused by the transplanted duodenum because of rejection and ischemic changes. The patient experienced severe bleeding 9 days after SPK. We quickly performed open surgery and inserted an endoscope from the recipient's ileum to investigate the transplanted duodenum. However, no bleeding source was found, including in the transplanted duodenum and the recipient's ileum end. We determined that the bleeding source was the recipient's ascending colon. We attempted to perform endovascular treatment but could not detect the source of the bleeding; therefore, we used somatostatin analog to let the blood vessels shrink and reduce pancreatic output. Thereafter, the function of the transplanted pancreas and kidney gradually recovered, and the recipient was discharged 154 days after SPK. CONCLUSION Gastrointestinal bleeding is a lethal complication and has several different causes, such as mucosal rejection, ischemic changes, and exocrine output of the pancreas graft. Somatostatin analog is one of the most acceptable treatments for patients who have gastrointestinal bleeding after SPK.
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Affiliation(s)
- S Miyagi
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan.
| | - A Fujio
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - K Tokodai
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - Y Hara
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - C Nakanishi
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - H Goto
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - T Kamei
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - N Kawagishi
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - N Ohuchi
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
| | - S Satomi
- Division of Transplantation, Upper Digestive and Vascular Surgery, Tohoku University, Sendai, Japan
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Imamura T, Kiyokawa N, Kato M, Imai C, Okamoto Y, Yano M, Ohki K, Yamashita Y, Kodama Y, Saito A, Mori M, Ishimaru S, Deguchi T, Hashii Y, Shimomura Y, Hori T, Kato K, Goto H, Ogawa C, Koh K, Taki T, Manabe A, Sato A, Kikuta A, Adachi S, Horibe K, Ohara A, Watanabe A, Kawano Y, Ishii E, Shimada H. Characterization of pediatric Philadelphia-negative B-cell precursor acute lymphoblastic leukemia with kinase fusions in Japan. Blood Cancer J 2016; 6:e419. [PMID: 27176795 PMCID: PMC4916297 DOI: 10.1038/bcj.2016.28] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 04/06/2016] [Indexed: 12/11/2022] Open
Abstract
Recent studies revealed that a substantial proportion of patients with high-risk B-cell precursor acute lymphoblastic leukemia (BCP-ALL) harbor fusions involving tyrosine kinase and cytokine receptors, such as ABL1, PDGFRB, JAK2 and CRLF2, which are targeted by tyrosine kinase inhibitors (TKIs). In the present study, transcriptome analysis or multiplex reverse transcriptase–PCR analysis of 373 BCP-ALL patients without recurrent genetic abnormalities identified 29 patients with kinase fusions. Clinically, male predominance (male/female: 22/7), older age at onset (mean age at onset: 8.8 years) and a high white blood cell count at diagnosis (mean: 94 200/μl) reflected the predominance of National Cancer Institute high-risk (NCI-HR) patients (NCI-standard risk/HR: 8/21). Genetic analysis identified three patients with ABL1 rearrangements, eight with PDGFRB rearrangements, two with JAK2 rearrangements, three with IgH-EPOR and one with NCOR1-LYN. Of the 14 patients with CRLF2 rearrangements, two harbored IgH-EPOR and PDGFRB rearrangements. IKZF1 deletion was present in 16 of the 22 patients. The 5-year event-free and overall survival rates were 48.6±9.7% and 73.5±8.6%, respectively. The outcome was not satisfactory without sophisticated minimal residual disease-based stratification. Furthermore, the efficacy of TKIs combined with conventional chemotherapy without allogeneic hematopoietic stem cell transplantation in this cohort should be determined.
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Affiliation(s)
- T Imamura
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - N Kiyokawa
- Department of Pediatric Hematology and Oncology Research, National Research Institute for Child Health and Development, Tokyo, Japan
| | - M Kato
- Department of Pediatrics, The University of Tokyo, Tokyo, Japan
| | - C Imai
- Division of Pediatrics, Department of Homeostatic Regulation and Development, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Y Okamoto
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - M Yano
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
| | - K Ohki
- Department of Hematology/Oncology, Gunma Children's Medical Center, Shibukawa, Japan
| | - Y Yamashita
- National Hospital Organization Nagoya Medical Center, Clinical Research Center, Nagoya, Japan
| | - Y Kodama
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - A Saito
- Department of Hematology and Oncology, Hyogo Prefectural Children's Hospital, Kobe, Japan
| | - M Mori
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - S Ishimaru
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - T Deguchi
- Department of Pediatrics, Mie University, Tsu, Japan
| | - Y Hashii
- Department of Pediatrics, Osaka University, Osaka, Japan
| | - Y Shimomura
- Department of Pediatrics, Aichi Medical University School of Medicine, Nagakute, Japan
| | - T Hori
- Department of Pediatrics, Aichi Medical University School of Medicine, Nagakute, Japan
| | - K Kato
- Division of Pediatric Hematology/Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - H Goto
- Division of Hemato-Oncology and Regenerative Medicine, Kanagawa Children's Medical Center, Yokohama, Japan
| | - C Ogawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - K Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - T Taki
- Department of Molecular Diagnostics and Therapeutics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - A Manabe
- Department of Pediatrics, St Luke's International Hospital, Tokyo, Japan
| | - A Sato
- Department of Hematology and Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - A Kikuta
- Department of Pediatrics, Fukushima Medical School, Fukushima, Japan
| | - S Adachi
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - K Horibe
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - A Ohara
- Department of Pediatrics, Toho University, Tokyo, Japan
| | - A Watanabe
- Department of Pediatrics, Nakadori General Hospital, Akita, Japan
| | - Y Kawano
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - E Ishii
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon, Japan
| | - H Shimada
- Department of Pediatrics, School of Medicine, Keio University School of Medicine, Tokyo, Japan
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Tokodai K, Kawagishi N, Miyagi S, Nakanishi C, Hara Y, Fujio A, Kashiwadate T, Maida K, Goto H, Kamei T, Ohuchi N. Poor Long-Term Outcomes of Adult Liver Transplantation Involving Elderly Living Donors. Transplant Proc 2016; 48:1130-3. [DOI: 10.1016/j.transproceed.2016.01.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/05/2016] [Accepted: 01/21/2016] [Indexed: 12/21/2022]
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Abstract
Primary cilia, microtubule-based sensory structures, orchestrate various critical signals during development and tissue homeostasis. In view of the rising interest into the reciprocal link between ciliogenesis and cell cycle, we discuss here several recent advances to understand the molecular link between the individual step of ciliogenesis and cell cycle control. At the onset of ciliogenesis (the transition from centrosome to basal body), distal appendage proteins have been established as components indispensable for the docking of vesicles at the mother centriole. In the initial step of axonemal extension, CP110, Ofd1, and trichoplein, key negative regulators of ciliogenesis, are found to be removed by a kinase-dependent mechanism, autophagy, and ubiquitin–proteasome system, respectively. Of note, their disposal functions as a restriction point to decide that the axonemal nucleation and extension begin. In the elongation step, Nde1, a negative regulator of ciliary length, is revealed to be ubiquitylated and degraded by CDK5-SCFFbw7 in a cell cycle-dependent manner. With regard to ciliary length control, it has been uncovered in flagellar shortening of Chlamydomonas that cilia itself transmit a ciliary length signal to cytoplasm. At the ciliary resorption step upon cell cycle re-entry, cilia are found to be disassembled not only by Aurora A-HDAC6 pathway but also by Nek2-Kif24 and Plk1-Kif2A pathways through their microtubule-depolymerizing activity. On the other hand, it is becoming evident that the presence of primary cilia itself functions as a structural checkpoint for cell cycle re-entry. These data suggest that ciliogenesis and cell cycle intimately link each other, and further elucidation of these mechanisms will contribute to understanding the pathology of cilia-related disease including cancer and discovering targets of therapeutic interventions.
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Affiliation(s)
- Ichiro Izawa
- Division of Biochemistry, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Japan
| | - Hidemasa Goto
- Division of Biochemistry, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Japan ; Department of Cellular Oncology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
| | - Kousuke Kasahara
- Division of Biochemistry, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Japan ; Department of Oncology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Aichi 467-8603 Japan
| | - Masaki Inagaki
- Division of Biochemistry, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Japan ; Department of Cellular Oncology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550 Japan
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Abstract
Tetherin (BST-2/CD317/HM1.24) is an antiviral membrane protein that prevents the release of enveloped viruses from the cell surface. We found that the growth of human parainfluenza virus type 2 (hPIV-2), but not that of V protein-deficient recombinant hPIV-2, was inhibited by tetherin. V protein immunoprecipitates with tetherin, and this interaction requires its C-terminal Trp residues. The glycosyl phosphatidylinositol attachment signal of tetherin, but not its cytoplasmic tail, was necessary for its binding with V. The distribution of the V protein clearly changed when co-expressed with tetherin in plasmid-transfected cells. hPIV-2 infection of HeLa cells reduced cell surface tetherin without affecting total cellular tetherin. This reduction also occurred in HeLa cells constitutively expressing V, whereas mutated V protein did not affect the cell surface tetherin. Our results suggest that hPIV-2 V protein antagonizes tetherin by binding it and reducing its presence at the cell surface.
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Affiliation(s)
- K Ohta
- Department of Microbiology, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - H Goto
- Department of Microbiology, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - N Yumine
- Department of Microbiology, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - M Nishio
- Department of Microbiology, School of Medicine, Wakayama Medical University, Wakayama, Japan
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Imai H, Kamei H, Onishi Y, Yamada K, Ishizu Y, Ishigami M, Goto H, Ogura Y. Successful Living-Donor Liver Transplantation for Cholestatic Liver Failure Induced by Allopurinol: Case Report. Transplant Proc 2015; 47:2778-81. [DOI: 10.1016/j.transproceed.2015.09.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 09/24/2015] [Indexed: 10/22/2022]
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Tachi T, Yasuda M, Usui K, Umeda M, Nagaya K, Osawa T, Ichihashi A, Noguchi Y, Goto H, Kasahara S, Takahashi T, Goto C, Teramachi H. Risk factors for developing infusion reaction after rituximab administration in patients with B-cell non-Hodgkin's lymphoma. Pharmazie 2015; 70:674-677. [PMID: 26601425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Rituximab (RTX), a monoclonal antibody against CD20, is known to cause fewer side effects than conventional anti-cancer drugs; however, infusion reaction (IR), which is specific to monoclonal antibody therapy, is frequently triggered by RTX. Therefore, we designed this study to identify risk factors based on clinical test values for developing IR after RTX administration. Eighty-nine patients with B-cell non-Hodgkin's lymphoma who had received RTX for the first time between February 2010 and March 2013, at the Gifu Municipal Hospital were enrolled as subjects. Analysis of data was conducted for 87 patients, after excluding patients whose data were missing. Univariate analysis showed significant differences in the number of patients exhibiting a soluble interleukin-2 receptor (sLL-2R) level > 2,000 U/L and hemoglobin (Hb) < lower standard limit (LSL) between the IR and non-IR groups. Multivariate analysis showed significant differences with respect to slL-2R > 2,000 U/L [odds ratio (OR), 4.463; 95% confidence interval (Cl), 1.262-15.779; P = 0.020], Hb < LSL [OR, 3.568; 95% CI, 1.071-11.890; P = 0.038], and steroid administration [OR, 0.284; 95% Cl, 0.094-0.852; P = 0.025]. Our findings show that sIL-2R > 2,000 U/L, Hb < LSL, and a lack of steroid premedication are risk factors for developing IR following RTX treatment.
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Khosroshahi A, Wallace ZS, Crowe JL, Akamizu T, Azumi A, Carruthers MN, Chari ST, Della-Torre E, Frulloni L, Goto H, Hart PA, Kamisawa T, Kawa S, Kawano M, Kim MH, Kodama Y, Kubota K, Lerch MM, Löhr M, Masaki Y, Matsui S, Mimori T, Nakamura S, Nakazawa T, Ohara H, Okazaki K, Ryu JH, Saeki T, Schleinitz N, Shimatsu A, Shimosegawa T, Takahashi H, Takahira M, Tanaka A, Topazian M, Umehara H, Webster GJ, Witzig TE, Yamamoto M, Zhang W, Chiba T, Stone JH. International Consensus Guidance Statement on the Management and Treatment of IgG4-Related Disease. Arthritis Rheumatol 2015; 67:1688-99. [PMID: 25809420 DOI: 10.1002/art.39132] [Citation(s) in RCA: 589] [Impact Index Per Article: 65.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 03/19/2015] [Indexed: 02/06/2023]
Affiliation(s)
- A Khosroshahi
- Emory University School of Medicine, Atlanta, Georgia
| | | | - J L Crowe
- University of Tennessee College of Medicine, Chattanooga
| | - T Akamizu
- Wakayama Medical University, Tokyo, Japan
| | - A Azumi
- Kobe Kaisei Hospital, Kobe, Japan
| | - M N Carruthers
- University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | | | - H Goto
- Tokyo Medical University, Tokyo, Japan
| | - P A Hart
- The Ohio State University Medical College and The Ohio State University Wexner Medical Center, Columbus
| | - T Kamisawa
- Tokyo Metropolitan Komagome Hospital, Tokyo, Japan
| | - S Kawa
- Shinshu University, Matsumoto, Japan
| | - M Kawano
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - M H Kim
- University of Ulsan College of Medicine and Asan Medical Center, Ulsan, Republic of Korea
| | - Y Kodama
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kubota
- Yokohama City University and Yokohama City University Hospital, Yokohama, Japan
| | - M M Lerch
- University of Greifswald Medical School, Greifswald, Germany
| | - M Löhr
- Karolinska Institutet, Stockholm, Sweden
| | - Y Masaki
- Kanazawa Medical University, Kanazawa, Japan
| | - S Matsui
- University of Toyama, Toyama, Japan
| | - T Mimori
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - S Nakamura
- Kyushu University and Kyushu University Dental Hospital, Fukuoka, Japan
| | - T Nakazawa
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - H Ohara
- Nagoya City University Graduate School of Medicine, Nagoya, Japan
| | - K Okazaki
- Kansai Medical University, Hirakata, Japan
| | - J H Ryu
- Mayo Clinic, Rochester, Minnesota
| | - T Saeki
- Nagaoka Red Cross Hospital, Nagaoka, Japan
| | - N Schleinitz
- Aix-Marseille Université, Assistance Publique Hôpitaux de Marseille, Marseille, France
| | - A Shimatsu
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | | | - H Takahashi
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - M Takahira
- Kanazawa University Graduate School of Medical Sciences and Kanazawa University Hospital, Kanazawa, Japan
| | - A Tanaka
- Teikyo University School of Medicine, Tokyo, Japan
| | | | - H Umehara
- Kanazawa Medical University, Kanazawa, Japan
| | - G J Webster
- University College London and University College London Hospitals, London, UK
| | | | - M Yamamoto
- Sapporo Medical University School of Medicine, Sapporo, Japan
| | - W Zhang
- Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China
| | - T Chiba
- Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - J H Stone
- Massachusetts General Hospital, Boston
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- Japanese Ministry of Health, Labor, and Welfare, Amgen, and Genetech
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Oakes V, Wang W, Harrington B, Lee WJ, Beamish H, Chia KM, Pinder A, Goto H, Inagaki M, Pavey S, Gabrielli B. Cyclin A/Cdk2 regulates Cdh1 and claspin during late S/G2 phase of the cell cycle. Cell Cycle 2015; 13:3302-11. [PMID: 25485510 DOI: 10.4161/15384101.2014.949111] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Whereas many components regulating the progression from S phase through G2 phase into mitosis have been identified, the mechanism by which these components control this critical cell cycle progression is still not fully elucidated. Cyclin A/Cdk2 has been shown to regulate the timing of Cyclin B/Cdk1 activation and progression into mitosis although the mechanism by which this occurs is only poorly understood. Here we show that depletion of Cyclin A or inhibition of Cdk2 during late S/early G2 phase maintains the G2 phase arrest by reducing Cdh1 transcript and protein levels, thereby stabilizing Claspin and maintaining elevated levels of activated Chk1 which contributes to the G2 phase observed. Interestingly, the Cyclin A/Cdk2 regulated APC/C(Cdh1) activity is selective for only a subset of Cdh1 targets including Claspin. Thus, a normal role for Cyclin A/Cdk2 during early G2 phase is to increase the level of Cdh1 which destabilises Claspin which in turn down regulates Chk1 activation to allow progression into mitosis. This mechanism links S phase exit with G2 phase transit into mitosis, provides a novel insight into the roles of Cyclin A/Cdk2 in G2 phase progression, and identifies a novel role for APC/C(Cdh1) in late S/G2 phase cell cycle progression.
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Affiliation(s)
- Vanessa Oakes
- a The University of Queensland Diamantina Institute; Translational Research Institute ; Brisbane , Queensland , Australia
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50
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Goto H, Handa N, Minakata K, Myojo T, Osawa H. 1584 Serum albumin level and decision of chemotherapy discontinuation in patients with metastatic non-colorectal and colorectal cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30673-6] [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: 10/22/2022]
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