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Tsuneki H, Honda K, Sekine Y, Yahata K, Yasue M, Fujishima M, Takeda R, Wada T, Sasaoka T. C-terminal peptide of preproorexin enhances brain-derived neurotrophic factor expression in rat cerebrocortical cells and recognition memory in mice. Eur J Pharmacol 2024; 964:176306. [PMID: 38145647 DOI: 10.1016/j.ejphar.2023.176306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/08/2023] [Accepted: 12/21/2023] [Indexed: 12/27/2023]
Abstract
During the production of orexin A and B from preproorexin, a common precursor protein, in hypothalamic orexin neurons, C-terminal peptide (herein called preproorexin C-peptide) is concomitantly produced via post-translational processing. The predicted three-dimensional structure of preproorexin C-peptide is similar among mammalian species, suggestive of a conserved function in the mammalian brain. However, C-peptide has long been regarded as a non-functional peptide. We herein examined the effects of rat and/or mouse preproorexin C-peptide on gene expression and cell viability in cultured rat cerebrocortical cells and on memory behavior in C57BL/6J mice. Rat and mouse C-peptides both increased brain-derived neurotrophic factor (Bdnf) mRNA levels. Moreover, C-peptide enhanced high K+-, glutamate-, and BDNF-induced increases in Bdnf mRNA levels without affecting forskolin-induced Bdnf expression. H-89, a protein kinase A inhibitor, blocked C-peptide-induced Bdnf expression, whereas rolipram, a phosphodiesterase inhibitor, enhanced this effect. Intracellular cyclic AMP concentrations were elevated by C-peptide. These results demonstrate that preproorexin C-peptide promoted Bdnf mRNA expression by a cyclic AMP-dependent mechanism. Eleven amino acids at the N terminus of rat preproorexin C-peptide exerted similar effects on Bdnf expression as full-length preproorexin C-peptide. Preproorexin C-peptide also exerted protective effects against CoCl2-induced neuronal cell death. An intracerebroventricular injection of mouse preproorexin C-peptide induced c-fos and Bdnf expression in the cerebral cortex and hippocampus and enhanced novel object recognition memory in mice. Collectively, the present results show that preproorexin C-peptide is a functional substance, at least in some pharmacological and neuronal settings.
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Affiliation(s)
- Hiroshi Tsuneki
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan; Department of Integrative Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - Kosuke Honda
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Yurika Sekine
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Koji Yahata
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Moeka Yasue
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Masashi Fujishima
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Ryuta Takeda
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Tsutomu Wada
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Toshiyasu Sasaoka
- Department of Clinical Pharmacology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
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Sekine Y, Iwasaki Y, Aoi T, Mikiko E, Hirata M, Kamatani Y, Matsuda K, Kokichi S, Yoshida T, Murakami Y, Fukui T, Akamatsu S, Ogawa O, Nakagawa H, Numakura K, Narita S, Momozawa Y, Habuchi T. Large-scale genomic analysis of renal cell carcinoma using 1,532 Japanese patients and 5,996 controls. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01200-3] [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: 11/26/2022]
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Muto Y, Numakura K, Sekine Y, Kobayashi M, Kashima S, Yamamoto R, Koizumi A, Nara T, Saito M, Narita S, Omori Y, Habuchi T. Cancer-associated adipose-derived mesenchymal stem cells promote migration and invasion in kidney cancer. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01199-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: 11/25/2022]
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Miyazawa Y, Nomura M, Syuto T, Seiji A, Sekine Y, Koike H, Hiroshi M, Suzuki K. The relationship between adherent perinephric fat and sex hormone levels in serum and perinephric fat tissue of patients treated by robotic assisted partial nephrectomy. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00298-6] [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: 11/04/2022]
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Numakura K, Sekine Y, Muto Y, Kobayashi M, Kashima S, Yamamoto R, Koizumi A, Nara T, Saito M, Narita S, Habuchi T. Cortisol regulates adrenaline synthesis via phenylethanolamine N-methyltransferase in surgical specimens of pheochromocytoma. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00708-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Miyazawa Y, Oka D, Nakayama H, Miyao T, Nakamura T, Takezawa Y, Shimizu N, Matsuo Y, Haruyuki O, Takei T, Sekine Y, Arai S, Suzuki K. Prospective study of the relationship between clinical outcomes of enzalutamide and serum androgen levels measured by LC-MS/MS in CRPC patients. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01230-6] [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: 10/20/2022]
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Willems MET, Todaka M, Banic M, Cook MD, Sekine Y. Intake of New Zealand Blackcurrant Powder Affects Skin-Borne Volatile Organic Compounds in Middle-Aged and Older Adults. J Diet Suppl 2021; 19:603-620. [PMID: 33860732 DOI: 10.1080/19390211.2021.1908479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Skin volatile organic compounds (VOCs) can cause body odor or reveal human disease and may result from lipid peroxidation or activity by skin bacteria. We examined the effect of intake of New Zealand blackcurrant (NZBC) powder for 77 skin VOCs in middle-aged and older adults in a crossover design. Fourteen adults (nine males, age: 55 ± 5 yrs) consumed NZBC powder for 7 days (6 g·day-1 with 138.6 mg anthocyanins). Two hours after the last intake, a passive flux sampler with trapping media was applied in the base of the neck for 1 hour. Gas chromatography-mass spectrometry was used for media analysis. Habitual anthocyanin intake was quantified using a food frequency questionnaire. Compared to control (i.e., no intake of NZBC powder), emission of six skin VOCs (i.e., 2-nonenal, acetic acid, 2-hexanone, 6-methyl-5-hepten-2-one, benzaldehyde, allyl methyl sulfide) were lower by more than 25%. Increases were observed for γ-octanolactone (+184%) and γ-decanolactone (+89%). A trend for a decrease for isovaleraldehyde, hexanal, and 2-pentanone, and an increase for heptanoic acid and γ-nonanolactone was observed. There was a significant correlation with daily habitual dietary anthocyanin intake for control values of hexanal and percentage change of γ-octanolactone. NZBC powder can change emanation of some VOCs in human skin. Analysis of skin VOCs following specific polyphenol intake may address the impact of dietary components to affect internal metabolic processes, body odor, and health.
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Affiliation(s)
- M E T Willems
- Institute of Sport, University of Chichester, Chichester, UK
| | - M Todaka
- Graduate School of Science, Tokai University, Hiratsuka City, Japan
| | - M Banic
- Institute of Sport, University of Chichester, Chichester, UK.,Faculty of Health Sciences and Sport, University of Stirling, Stirling, UK
| | - M D Cook
- Institute of Sport and Exercise Science, University of Worchester, Worcester, UK
| | - Y Sekine
- Graduate School of Science, Tokai University, Hiratsuka City, Japan
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Sekine Y, Kotani K, Oka D, Nakayama H, Miyazawa Y, Syuto T, Arai S, Nomura M, Koike H, Matsui H, Shibata Y, Suzuki K. Usefulness of presepsin for detecting sepsis in urinary-tract infections. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33449-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Kikuchi S, Sekine Y, Sugai K, Kawamura T, Yanagihara T, Saeki Y, Kitazawa S, Kobayashi N, Goto Y, Onizuka M, Ichimura H, Sato Y. P2.05-17 Preoperative Identification of the Left Common Pulmonary Vein for Safe Video-Assisted Lobectomy. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1616] [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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Sekine Y, Itoh T, Toyoda T, Kaiho D, Hoshino H, Oheda H, Koh E. P2.16-39 The Application of 3D Medical Image Analyzer and a Fluorescence Guided Surgery for Pulmonary Sublobar Resection. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1514] [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: 12/01/2022]
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Okada S, Manabe R, Inagaki R, Ogo S, Sekine Y. Methane dissociative adsorption in catalytic steam reforming of methane over Pd/CeO2 in an electric field. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.05.079] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [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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Hiroshima K, Wu D, Yusa T, Ozaki D, Koh E, Sekine Y, Haba R, Washimi K, Nabeshima K, Tsujimura T. P2.09-006 FISH Analysis of p16 and BAP1 Immunohistochemistry for the Diagnosis of Mesothelioma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1331] [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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Manabe R, Nakatsubo H, Gondo A, Murakami K, Ogo S, Tsuneki H, Ikeda M, Ishikawa A, Nakai H, Sekine Y. Electrocatalytic synthesis of ammonia by surface proton hopping. Chem Sci 2017; 8:5434-5439. [PMID: 28970922 PMCID: PMC5609515 DOI: 10.1039/c7sc00840f] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/20/2017] [Indexed: 11/30/2022] Open
Abstract
Highly efficient ammonia synthesis at a low temperature is desirable for future energy and material sources. We accomplished efficient electrocatalytic low-temperature ammonia synthesis with the highest yield ever reported. The maximum ammonia synthesis rate was 30 099 μmol gcat-1 h-1 over a 9.9 wt% Cs/5.0 wt% Ru/SrZrO3 catalyst, which is a very high rate. Proton hopping on the surface of the heterogeneous catalyst played an important role in the reaction, revealed by in situ IR measurements. Hopping protons activate N2 even at low temperatures, and they moderate the harsh reaction condition requirements. Application of an electric field to the catalyst resulted in a drastic decrease in the apparent activation energy from 121 kJ mol-1 to 37 kJ mol-1. N2 dissociative adsorption is markedly promoted by the application of the electric field, as evidenced by DFT calculations. The process described herein opens the door for small-scale, on-demand ammonia synthesis.
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Affiliation(s)
- R Manabe
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - H Nakatsubo
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - A Gondo
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - K Murakami
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - S Ogo
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - H Tsuneki
- Nippon Shokubai Co. Ltd. , 5-8, Nishiotabi, Suita , Osaka 564-0034 , Japan
| | - M Ikeda
- Nippon Shokubai Co. Ltd. , 5-8, Nishiotabi, Suita , Osaka 564-0034 , Japan
| | - A Ishikawa
- Department of Chemistry and Biochemistry , Waseda Univ. , Japan
| | - H Nakai
- Department of Chemistry and Biochemistry , Waseda Univ. , Japan
- ESICB , Kyoto University , Kyoto-daigaku-katsura , Kyoto , 615-8520 Japan
| | - Y Sekine
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
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Sato A, Sekine Y, Yano T. Analysis of anticancer mechanism of a vitamin E derivative on malignant mesothelioma cells. Journal of Nutrition & Intermediary Metabolism 2017. [DOI: 10.1016/j.jnim.2017.04.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Parmentier FD, Cazimajou T, Sekine Y, Hibino H, Irie H, Glattli DC, Kumada N, Roulleau P. Quantum Hall effect in epitaxial graphene with permanent magnets. Sci Rep 2016; 6:38393. [PMID: 27922114 PMCID: PMC5138823 DOI: 10.1038/srep38393] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 11/08/2016] [Indexed: 11/09/2022] Open
Abstract
We have observed the well-kown quantum Hall effect (QHE) in epitaxial graphene grown on silicon carbide (SiC) by using, for the first time, only commercial NdFeB permanent magnets at low temperature. The relatively large and homogeneous magnetic field generated by the magnets, together with the high quality of the epitaxial graphene films, enables the formation of well-developed quantum Hall states at Landau level filling factors v = ±2, commonly observed with superconducting electro-magnets. Furthermore, the chirality of the QHE edge channels can be changed by a top gate. These results demonstrate that basic QHE physics are experimentally accessible in graphene for a fraction of the price of conventional setups using superconducting magnets, which greatly increases the potential of the QHE in graphene for research and applications.
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Affiliation(s)
- F D Parmentier
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay 91191 Gif-sur-Yvette cedex, France
| | - T Cazimajou
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay 91191 Gif-sur-Yvette cedex, France
| | - Y Sekine
- NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa, Japan
| | - H Hibino
- NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa, Japan
| | - H Irie
- NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa, Japan
| | - D C Glattli
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay 91191 Gif-sur-Yvette cedex, France
| | - N Kumada
- NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa, Japan
| | - P Roulleau
- SPEC, CEA, CNRS, Université Paris-Saclay, CEA Saclay 91191 Gif-sur-Yvette cedex, France
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Abstract
Catalytic steam reforming of methane for hydrogen production proceeds even at 473 K over 1 wt% Pd/CeO2 catalyst in an electric field, thanks to the surface protonics. Kinetic analyses demonstrated the synergetic effect between catalytic reaction and electric field, revealing strengthened water pressure dependence of the reaction rate when applying an electric field, with one-third the apparent activation energy at the lower reaction temperature range. Operando–IR measurements revealed that proton conduction via adsorbed water on the catalyst surface occurred during electric field application. Methane was activated by proton collision at the Pd–CeO2 interface, based on the inverse kinetic isotope effect. Proton conduction on the catalyst surface plays an important role in methane activation at low temperature. This report is the first describing promotion of the catalytic reaction by surface protonics.
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Affiliation(s)
- R Manabe
- Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - S Okada
- Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - R Inagaki
- Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - K Oshima
- Chemistry and Biochemistry, National Institute of Technology, Numazu College, 3600, Ooka, Numazu, Shizuoka, 410-8501, Japan
| | - S Ogo
- Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo, 169-8555, Japan
| | - Y Sekine
- Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo, 169-8555, Japan
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Fujikawa T, Yamamoto S, Sekine Y, Oshima S, Kasai R, Mochida Y, Ozaki K, Sasaguri S. Operative Results and Clinical Features of Chronic Stanford Type B Aortic Dissection: Examination of 234 Patients Over 6 Years. Eur J Vasc Endovasc Surg 2015; 50:738-43. [PMID: 26427847 DOI: 10.1016/j.ejvs.2015.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 07/08/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE/BACKGROUND Recently, the indications for thoracic endovascular aortic repair (TEVAR) have been expanding, and the applicability of TEVAR for acute type B aortic dissection (TBAD) is proposed with regard to the high mortality of open surgery for chronic TBAD. TEVAR in the acute phase may lead to remodeling of the false lumen (FL), but it is controversial whether it completely resolves the aortic expansion in the chronic phase. In this study, operative results and the relationship between FL status and the time before surgical intervention were retrospectively analyzed. METHODS From January 2008 to September 2013, 234 patients underwent open surgery for chronic TBAD. Most patients were on left heart bypass. By considering Japanese aortic disease treatment guidelines and the smaller physique of Japanese patients, operative indications were aneurysm >50 mm in diameter or rapid aneurysm enlargement of >5 mm in a 6 month period. RESULTS In 180 cases, the FL was patent. The mean interval between onset of TBAD and operation was 61 ± 54 months. There was no significant difference between patients in the patent FL group and those in the thrombosed FL group (p = .44). Mean ratio of FL diameter to maximum aortic diameter (FL/AD) was 0.64 ± 0.21. There was no correlation between FL and AD before the operation (r = .12). Descending thoracic aortic replacement (DTAR) was performed in 127 cases and thoracic ascending aortic replacement (TAAR) in 107 cases (Crawford type I, n = 9; Crawford type II, n = 65; Crawford type III and IV, n = 22, respectively; Safi type V, n = 11). The overall operative mortality was 6.8%: 3.9% (5/127) for DTAR and 10.3% (11/107) for TAAR. The three year survival was 86.7, and the freedom from re-intervention rate was 97.0%. CONCLUSION Enlargement of uncomplicated TBAD in the chronic phase was poorly related to FL status and the results of open repair have improved. However, further prospective study is necessary.
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Affiliation(s)
- T Fujikawa
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan.
| | - S Yamamoto
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - Y Sekine
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - S Oshima
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - R Kasai
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - Y Mochida
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - K Ozaki
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - S Sasaguri
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
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Wang S, Sekine Y, Suzuki S, Maeda F, Hibino H. Photocurrent generation of a single-gate graphene p-n junction fabricated by interfacial modification. Nanotechnology 2015; 26:385203. [PMID: 26334952 DOI: 10.1088/0957-4484/26/38/385203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A back-gate graphene p-n junction was achieved by selective interfacial modification of a chemical vapor deposition (CVD)-grown graphene field effect transistor (FET). Silane self-assembled monolayer (SAM) patterns were used to fabricate uniform p- and n-doped regions and a sharp p-n junction in the graphene FET channel. A gate-dependent photocurrent response was observed at the graphene p-n junction, and exhibited a maximum signal between two Dirac point voltages of SAM-doped graphene regions. A spatial photocurrent map shows that the photocurrent generated at the junction region was much larger than that from graphene/electrode junctions under the same incident laser power. This single-peak characteristic photocurrent in CVD graphene is dominated by the photothermoelectric contribution, and is highly sensitive to the power of incident laser. The SAM interfacial modification method provides a feasible route for the fabrication of efficient graphene-based photodetectors.
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Affiliation(s)
- S Wang
- NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan
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Sato M, Imashimizu K, Kuwata T, Yamanashi K, Misawa K, Kobayashi M, Ikeda M, Koike T, Kitamura A, Kosaka S, Nagayama K, Sekine Y, Hirayama S, Okabe R, Sakai H, Watanabe F, Date H. F-147SAFETY, REPRODUCIBILITY AND BENEFIT OF VIRTUAL-ASSISTED LUNG MAPPING IN THORACOSCOPIC SUBLOBAR LUNG RESECTION: A MULTI-CENTRE STUDY IN JAPAN. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hata A, Sekine Y, Koh E, Yoshino I. F-098IMPACT OF COMBINED PULMONARY FIBROSIS AND EMPHYSEMA ON SURGICAL COMPLICATIONS AND LONG-TERM SURVIVAL OF PATIENTS UNDERGOING SURGERY FOR NON-SMALL-CELL LUNG CANCER. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Halliday M, Radford H, Sekine Y, Moreno J, Verity N, le Quesne J, Ortori CA, Barrett DA, Fromont C, Fischer PM, Harding HP, Ron D, Mallucci GR. Partial restoration of protein synthesis rates by the small molecule ISRIB prevents neurodegeneration without pancreatic toxicity. Cell Death Dis 2015; 6:e1672. [PMID: 25741597 PMCID: PMC4385927 DOI: 10.1038/cddis.2015.49] [Citation(s) in RCA: 222] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 01/19/2015] [Indexed: 01/28/2023]
Abstract
Activation of the PERK branch of the unfolded protein response (UPR) in response to protein misfolding within the endoplasmic reticulum (ER) results in the transient repression of protein synthesis, mediated by the phosphorylation of the alpha subunit of eukaryotic initiation factor 2 (eIF2α). This is part of a wider integrated physiological response to maintain proteostasis in the face of ER stress, the dysregulation of which is increasingly associated with a wide range of diseases, particularly neurodegenerative disorders. In prion-diseased mice, persistently high levels of eIF2α cause sustained translational repression leading to catastrophic reduction of critical proteins, resulting in synaptic failure and neuronal loss. We previously showed that restoration of global protein synthesis using the PERK inhibitor GSK2606414 was profoundly neuroprotective, preventing clinical disease in prion-infected mice. However, this occured at the cost of toxicity to secretory tissue, where UPR activation is essential to healthy functioning. Here we show that pharmacological modulation of eIF2α-P-mediated translational inhibition can be achieved to produce neuroprotection without pancreatic toxicity. We found that treatment with the small molecule ISRIB, which restores translation downstream of eIF2α, conferred neuroprotection in prion-diseased mice without adverse effects on the pancreas. Critically, ISRIB treatment resulted in only partial restoration of global translation rates, as compared with the complete restoration of protein synthesis seen with GSK2606414. ISRIB likely provides sufficient rates of protein synthesis for neuronal survival, while allowing some residual protective UPR function in secretory tissue. Thus, fine-tuning the extent of UPR inhibition and subsequent translational de-repression uncouples neuroprotective effects from pancreatic toxicity. The data support the pursuit of this approach to develop new treatments for a range of neurodegenerative disorders that are currently incurable.
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Affiliation(s)
- M Halliday
- Medical Research Council Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK
| | - H Radford
- Medical Research Council Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK
| | - Y Sekine
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - J Moreno
- Medical Research Council Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK
| | - N Verity
- Medical Research Council Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK
| | - J le Quesne
- 1] Medical Research Council Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK [2] Department of Histopathology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - C A Ortori
- Centre for Analytical Bioscience, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - D A Barrett
- Centre for Analytical Bioscience, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - C Fromont
- Division of Medicinal Chemistry & Structural Biology, School of Pharmacy, Centre for Biomolecular Sciences, University of Nottingham, Nottingham, UK
| | - P M Fischer
- Division of Medicinal Chemistry & Structural Biology, School of Pharmacy, Centre for Biomolecular Sciences, University of Nottingham, Nottingham, UK
| | - H P Harding
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - D Ron
- 1] Cambridge Institute for Medical Research, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK [2] The Wellcome Trust MRC Institute of Metabolic Science and NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | - G R Mallucci
- 1] Medical Research Council Toxicology Unit, Hodgkin Building, University of Leicester, Leicester, UK [2] Department of Clinical Neurosciences, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
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Fujikawa T, Yamamoto S, Sekine Y, Oshima S, Sasaguri S. Conventional total arch replacement in the endovascular era: 575 cases of single centre experience for six years. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2014.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Hasegawa M, Sakai F, Arimura K, Katsura H, Koh E, Sekine Y, Hiroshima K. EGFR Mutation of Adenocarcinoma in Congenital Cystic Adenomatoid Malformation/Congenital Pulmonary Airway Malformation: A Case Report. Jpn J Clin Oncol 2014; 44:278-81. [DOI: 10.1093/jjco/hyt226] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Kimura H, Kanahara N, Komatsu N, Ishige M, Muneoka K, Yoshimura M, Yamanaka H, Suzuki T, Komatsu H, Sekine Y, Watanabe H, Iyo M. [Effectiveness of long-acting injectable risperidone for patients with treatment refractory schizophrenia]. Nihon Shinkei Seishin Yakurigaku Zasshi 2013; 33:85-87. [PMID: 25314746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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25
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Kimura H, Kanahara N, Komatsu N, Ishige M, Muneoka K, Yoshimura M, Yamanaka H, Suzuki T, Komatsu H, Sekine Y, Watanabe H, Iyo M. 2742 – A prospective comparative study of risperidone long-acting injection for treatment-resistant schizophrenia with dopamine supersensitivity psychosis. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)77342-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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26
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Arai S, Shibata Y, Nakamura Y, Kashiwagi B, Uei T, Tomaru Y, Miyashiro Y, Honma S, Hashimoto K, Sekine Y, Ito K, Sasano H, Suzuki K. Development of prostate cancer in a patient with primary hypogonadism: intratumoural steroidogenesis in prostate cancer tissues. Andrology 2012; 1:169-74. [PMID: 23258647 DOI: 10.1111/j.2047-2927.2012.00026.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 09/10/2012] [Accepted: 09/10/2012] [Indexed: 11/29/2022]
Abstract
Intratumoural steroidogenesis may play a significant role in the progression of prostate cancer (PC) in the context of long-term ablation of circulating testosterone (T). To clarify the mechanism accounting for the progression of PC in a 74-year-old man who had undergone bilateral orchiectomy when he was 5 years old, we performed immunohistochemical studies of androgen receptor (AR) and steroidogenic enzymes in the prostate. We also measured steroid hormone levels in the serum and prostate, as well as mRNA levels of genes mediating androgen metabolism in the prostate. Positive nuclear staining of AR was detected in malignant epithelial cells. The levels of androstenedione (Adione), T, and 5-alpha dihydrotestosterone (DHT) in the serum of the patient were similar to those in PC patients receiving neoadjuvant androgen deprivation therapy (ADT), but were higher in the patient's prostate than in PC patients not receiving ADT. The gene expression of CYP17A1 and HSD3B1 was not detected, whereas that of STS, HSD3B2, AKR1C3, SRD5A1, and SRD5A2 was detected. Moreover, cytoplasmic staining of HSD3B2, AKR1C3, SRD5A1, and SRD5A2 was detected in malignant epithelial cells. Hence, in the present case (a man with primary hypogonadism), steroidogenesis in PC tissues from adrenal androgens, especially dehydroepiandrosterone sulphate, was the mechanism accounting for progression of PC. This mechanism might help elucidate the development of castration-resistant PC.
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Affiliation(s)
- S Arai
- Department of Urology, Gunma University Graduate School of Medicine, Maebashi, Japan.
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27
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Sekine Y, Koh E. [Thoracic surgery for patients with deep vein thrombosis]. Kyobu Geka 2012; 65:697-700. [PMID: 22868431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Deep vein thrombosis (DVT) is a main cause of pulmonary thromboembolism (PTE), and therefore both diseases are categorized as a serial pathophysiology of venous thromboembolism (VTE). Treatment goals for DVT include stopping clot propagation and preventing the recurrence of thrombus, the occurrence of PTE, and the development of pulmonary hypertension, which can be a complication of multiple recurrent pulmonary emboli. Clinical guidelines stratify the risk of VTE to 4 levels and recommend the treatment options. In high or extremely high risk patients for VTE, the use of low-dose heparin is recommended. The prevention against VTE, such as elastic compression stockings and intermittent sequential pneumatic leg compression( ISPC), is the most important prophylactic treatment against perioperative PTE by reducing thrombotic risk in low or moderate high risk patients for VET. Since there is no clear evidence that screening all or even selected patients for thrombophilias improves long-term outcomes, the physician's clinical judgment, and consultation with appropriate subspecialists should guide management perioperatively. Once PTE is suspected, immediate and accurate diagnosis and appropriate treatment are mandatory.
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Affiliation(s)
- Y Sekine
- Department of Thoracic Surgery, Tokyo Women's Medical University Yachiyo Medical Center, Japan
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28
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Fukuma Y, Matsui H, Koike H, Sekine Y, Shechter I, Ohtake N, Nakata S, Ito K, Suzuki K. Role of squalene synthase in prostate cancer risk and the biological aggressiveness of human prostate cancer. Prostate Cancer Prostatic Dis 2012; 15:339-45. [PMID: 22546838 DOI: 10.1038/pcan.2012.14] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND We previously conducted a genome-wide linkage analysis of Japanese nuclear families affected with prostate cancer and showed that the susceptibility to prostate cancer was closely linked to D8S550 at 8p23. The role of farnesyl diphosphate farnesyltransferase (FDFT1), which is located under the peak marker D8S550 at 8p23, and squalene synthase, the enzyme encoded by FDFT1, in prostate cancer was studied. METHODS The association among common variants of FDFT1 with prostate cancer risk, the promoter activities of FDFT1 with different genotypes and the effects of inhibition of squalene synthase were studied, and the FDFT1 transcript levels of human prostate samples were quantified. RESULTS The A allele of rs2645429 was significantly associated with prostate cancer risk in a Japanese familial prostate cancer population. Rs2645429 was located in the promoter region of FDFT1, and the AA genotype showed significantly increased promoter activity. The knockdown of FDFT1 mRNA expression or squalene synthase inhibition led to a significant decrease in prostate cancer cell proliferation. Additionally, human prostate cancer specimens expressed significantly higher levels of FDFT1 mRNA compared with noncancerous specimens. Finally, aggressive cancers showed higher transcript levels. CONCLUSIONS FDFT1 and its encoded enzyme, squalene synthase, may play an important role in prostate cancer development and its aggressive phenotypes.
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Affiliation(s)
- Y Fukuma
- Department of Urology, Gunma University Graduate School of Medicine, Maebashi, Japan
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29
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Nomura M, Ito K, Miyakubo M, Sekine Y, Tamura Y, Shimizu N, Aoki S, Suzuki K. Development and external validation of a nomogram for predicting cancer probability at initial prostate biopsy using the life expectancy- and prostate volume-adjusted biopsy scheme. Prostate Cancer Prostatic Dis 2011; 15:202-9. [DOI: 10.1038/pcan.2011.62] [Citation(s) in RCA: 8] [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: 11/09/2022]
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30
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Suzuki H, Sekine Y, Ko E, Sunazawa T, Iida H, Kishi H, Saitoh Y. Permanent cerebral bypass approach for lung cancer resection with aortic arch invasion. Thorac Cardiovasc Surg 2011; 59:378-80. [PMID: 21766279 DOI: 10.1055/s-0031-1280069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We report a case of a 54-year-old man with T4N0M0 non-small cell lung cancer directly invading the thoracic wall and aortic arch. He underwent neoadjuvant chemotherapy followed by en bloc resection of the tumor, lung, chest wall and aortic arch. Perfusion was maintained through femoral-femoral cardiopulmonary bypass, with permanent bypass to the arch vessels to avoid separate extracorporeal cerebral circulation. Total reconstructions of the chest wall and aortic arch were completed without the need for cardiac arrest. The final pathological diagnosis was squamous cell carcinoma, T4N0M0. The patient was discharged without major complications and has been free of disease for 20 months postoperatively.
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Affiliation(s)
- H Suzuki
- Department of Thoracic Surgery, Narita Red-Cross Hospital, Narita, Japan
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Abstract
We report the case of a dumbbell-shaped vertebral hemangioma mimicking a neurogenic tumor. A 73-year-old male was found on chest X-ray to have an abnormal shadow at the apex of the right upper lung field. Chest computed tomography revealed a 4.0-cm mass in the posterior right paravertebral region, adjacent to the T1 and T2 vertebral bodies. Given the location and shape of the tumor, it was suspected to be a neurogenic tumor. Magnetic resonance imaging revealed that the tumor extended into the spinal canal via the second intervertebral foramen. The tumor was resected successfully via hemilaminectomy with costotranversectomy. On pathological examination, the tumor was found to be a benign hemangioma. The patient is free of recurrence at 10 months post-resection. Vertebral hemangioma should be considered in the differential diagnosis of dumbbell-shaped tumors of the upper or posterior mediastinum.
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Affiliation(s)
- H Suzuki
- Department of Thoracic Surgery, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Japan
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32
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Ahn K, Furutake T, Kusuhara T, Nakatsuka D, Sekine Y, Nonaka M, Iwakura A, Yamanaka K. [Emergency operation and hypothermic therapy for Stanford type A acute aortic dissection in the state of coma]. Kyobu Geka 2010; 63:1032-1034. [PMID: 21066842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report of a 77-year-old woman who was admitted to our hospital in coma by emergency. A computed tomography scan revealed acute aortic dissection (Stanford type A). We established selective antegrade cerebral perfusion within 3 hours of the onset and then performed ascending aortic replacement. In the state of hypothermia (35 degrees C), the patient was weaned from cardiopulmonary bypass. The patient was kept hypothermic until the operation was completed. We kept mild hypothermia (34.5 degrees C) in intensive care unit (ICU) for 40 hours. The patient was extubated at 94 hours after the operation. The patient was discharged from the hospital on foot on postoperative day 21.
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Affiliation(s)
- K Ahn
- Department of Cardiovascular Surgery, Tenri Hospital, Tenri, Japan
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33
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Watanabe R, Sekine Y, Takamatsu H, Sakamoto Y, Aramaki S, Matsukata M, Kikuchi E. Pt and/or Pd Supported/Incorporated Catalyst on Perovskite-Type Oxide for Water Gas Shift Reaction. Top Catal 2010. [DOI: 10.1007/s11244-010-9496-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [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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34
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Kadono T, Sakaiya T, Hironaka Y, Otani K, Sano T, Fujiwara T, Mochiyama T, Kurosawa K, Sugita S, Sekine Y, Nishikanbara W, Matsui T, Ohno S, Shiroshita A, Miyanishi K, Ozaki N, Kodama R, Nakamura AM, Arakawa M, Fujioka S, Shigemori K. Impact experiments with a new technique for acceleration of projectiles to velocities higher than Earth's escape velocity of 11.2 km/s. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009je003385] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Okada M, Kita Y, Nakajima T, Kanamaru N, Hashimoto S, Nishida Y, Nakatani H, Takao K, Kishigami C, Nishimatsu S, Sekine Y, Inoue Y, Nagasawa T, Kaneda Y, Yoshida S, Matsumoto M, Paul S, Tan EV, Cruz ECD, N McMurray D, Sakatani M. A Novel Therapeutic and Prophylactic Vaccine (HVJ-Envelope / Hsp65 DNA + IL-12 DNA) against Tuberculosis Using the Cynomolgus Monkey Model. Procedia Vaccinol 2010; 2:34-39. [PMID: 32288910 PMCID: PMC7129898 DOI: 10.1016/j.provac.2010.03.007] [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] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We have developed a novel tuberculosis (TB) vaccine; a combination of the DNA vaccines expressing mycobacterial heat shock protein 65 (HSP65) and interleukin 12 (IL-12) delivered by the hemagglutinating virus of Japan (HVJ)-envelope and -liposome (HSP65 + IL-12/HVJ). An IL-12 expression vector (IL-12DNA) encoding single-chain IL-12 proteins comprised of p40 and p35 subunits were constructed. This vaccine provided remarkable protective efficacy in mouse and guinea pig models compared to the BCG vaccine on the basis of C.F.U of number of TB, survival, an induction of the CD8 positive CTL activity and improvement of the histopathological tuberculosis lesions. This vaccine also provided therapeutic efficacy against multi-drug resistant TB (MDR-TB) and extremely drug resistant TB (XDR-TB) (prolongation of survival time and the decrease in the number of TB in the lung) in murine models. Furthermore, we extended our studies to a cynomolgus monkey model, which is currently the best animal model of human tuberculosis. This novel vaccine provided a higher level of the protective efficacy than BCG based upon the assessment of mortality, the ESR, body weight, chest X-ray findings and immune responses. All monkeys in the control group (saline) died within 8 months, while 50% of monkeys in the HSP65+hIL-12/HVJ group survived more than 14 months post-infection (the termination period of the experiment). Furthermore, the BCG priming and HSP65 + IL-12/HVJ vaccine (booster) by the priming-booster method showed a synergistic effect in the TB-infected cynomolgus monkey (100% survival). In contrast, 33% of monkeys from BCG Tokyo alone group were alive (33% survival). Furthermore, this vaccine exerted therapeutic efficacy (100% survival) and augmentation of immune responses in the TB-infected monkeys. These data indicate that our novel DNA vaccine might be useful against Mycobacterium tuberculosis including XDR-TB and MDR-TB for human therapeutic clinical trials.
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Affiliation(s)
- M Okada
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - Y Kita
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - T Nakajima
- Ikeda Laboratory, GenomIdea Inc.,1-8-31, Midorigaoka, Ikeda, Osaka 530-0043, Japan
| | - N Kanamaru
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - S Hashimoto
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - Y Nishida
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - H Nakatani
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - K Takao
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - C Kishigami
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - S Nishimatsu
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - Y Sekine
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - Y Inoue
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
| | - T Nagasawa
- Ikeda Laboratory, GenomIdea Inc.,1-8-31, Midorigaoka, Ikeda, Osaka 530-0043, Japan
| | - Y Kaneda
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, 2-2, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Yoshida
- Department of Medical Zoology, Jichi-Med.Sch, 3311-1, Yakushiji, Minamikawachi-machi, Tochigi 329-0498, Japan
| | - M Matsumoto
- Otsuka Pharmaceutical Co. Ltd., 463-10 Kagasuno, Kawauchi-cho, Tokushima 771-0192, Japan
| | - Saunderson Paul
- Leonard Wood Memorial, Jagobiao, Mandaue City, Cebu 6000, Philippines
| | - E V Tan
- Leonard Wood Memorial, Jagobiao, Mandaue City, Cebu 6000, Philippines
| | - E C Dela Cruz
- Leonard Wood Memorial, Jagobiao, Mandaue City, Cebu 6000, Philippines
| | - D N McMurray
- Texas A & M University, System Health Science Center, College of Medicine, College Station, TX 77843-1114, USA
| | - M Sakatani
- Clinical Research Center, National Hospital Organization Kinki-chuo Chest Medical Center, 1180 Nagasone, Kitaku, Sakai, Osaka 591-8555, Japan
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Nakajima T, Sekine Y, Yamada Y, Suzuki H, Yasufuku K, Yoshida S, Suzuki M, Shibuya K, Fujisawa T, Yoshino I. Long-term Surgical Outcome in Patients with Lung Cancer and Coexisting Severe COPD. Thorac Cardiovasc Surg 2009; 57:339-42. [DOI: 10.1055/s-0029-1185571] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kotaka T, Ujike H, Morita Y, Kishimoto M, Okahisa Y, Inada T, Harano M, Komiyama T, Hori T, Yamada M, Sekine Y, Iwata N, Iyo M, Sora I, Ozaki N, Kuroda S. Association study between casein kinase 1 epsilon gene and methamphetamine dependence. Ann N Y Acad Sci 2008; 1139:43-8. [PMID: 18991847 DOI: 10.1196/annals.1432.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Casein kinase 1 epsilon (CKIepsilon) is a component of the DARPP-32 in second-messenger pathway. CKIepsilon phosphorylates and activates DARPP-32, a key molecule in various complex signaling pathways, including dopamine and glutamine signaling, which have both been demonstrated to be main pathways in substance dependence. A recent clinical study showed that rs135745, a noncoding single nucleotide polymorphism of the 3'-untranslated region of the CSNK1E gene, was associated with the intensity of the subjective response to an oral amphetamine dose in normal volunteers. Differences in sensitivity to the drug should affect development of dependence to it. Hence, we genotyped rs135745 of the CSNK1E (MIM 600863) gene in 215 patients with methamphetamine dependence and 274 age- and gender-matched normal controls. No significant differences in genotype and allele frequencies were observed between the patients with methamphetamine dependence and controls. There was also no significant association between rs135745 and the clinical characteristics of methamphetamine dependence and co-morbid methamphetamine psychosis (e.g., age of first consumption, latency of psychosis, prognosis of psychosis after therapy, spontaneous relapse of psychotic symptoms, and poly-substance abuse status). The present findings suggest that having a genetic variant of the CSNK1E gene did not affect susceptibility to methamphetamine dependence or psychosis, at least in a Japanese population.
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Affiliation(s)
- T Kotaka
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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39
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Kinoshita Y, Ikeda M, Ujike H, Kitajima T, Yamanouchi Y, Aleksic B, Kishi T, Kawashima K, Ohkouchi T, Ozaki N, Inada T, Harano M, Komiyama T, Hori T, Yamada M, Sekine Y, Iyo M, Sora I, Iwata N. Association Study of the Calcineurin A Gamma Subunit Gene (PPP3CC) and Methamphetamine-Use Disorder in a Japanese Population. Ann N Y Acad Sci 2008; 1139:57-62. [DOI: 10.1196/annals.1432.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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40
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Iwata Y, Tsuchiya KJ, Mikawa S, Nakamura K, Takai Y, Suda S, Sekine Y, Suzuki K, Kawai M, Sugihara G, Matsuzaki H, Hashimoto K, Tsujii M, Sugiyama T, Takei N, Mori N. Serum levels of P-selectin in men with high-functioning autism. Br J Psychiatry 2008; 193:338-9. [PMID: 18827301 DOI: 10.1192/bjp.bp.107.043497] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Immune dysfunction has been proposed as a mechanism for the pathophysiology of autistic-spectrum disorders. The selectin family of adhesion molecules plays a prominent role in immune/inflammatory responses. We determined the serum levels of three types of soluble-form selectin (sP, sL and sE) in 15 men with high-functioning autism and 22 age-matched healthy controls by enzyme-linked immunosorbent assay. Levels of sP-selectin and sL-selectin were significantly lower in patients than in controls. Furthermore, sP-selectin levels were negatively correlated with impaired social development during early childhood.
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Affiliation(s)
- Y Iwata
- Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
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Mohamed S, Yasufuku K, Nakajima T, Hiroshima K, Chiyo M, Yoshida S, Suzuki M, Sekine Y, Shibuya K, Agamy G, El-Shahhat H, Fujisawa T, Yoshino I. Nuclear survivin in pN2 nonsmall cell lung cancer: prognostic and clinical implications. Eur Respir J 2008; 33:127-33. [PMID: 18715879 DOI: 10.1183/09031936.00068708] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Patients with N2 nonsmall cell lung cancer (N2-NSCLC) represent heterogeneous groups. Survivin is a member of the inhibitor of apoptosis family. If N2-NSCLC patients could be stratified, based on survivin expression and/or its relation to cell cycle proteins, into homogeneous subgroups, certain therapies could be selected for those patients. Survivin expression in 78 surgically resected primary pathological N2-NSCLC tumours was evaluated using immunohistochemistry. Relationships of survivin expression to overall survival, clinical features and expression of six cell cycle-related proteins (pRb, cyclin D1, p16(INK4A), p53, p21(Waf1) and Ki-67) were analysed. Nuclear survivin and the number of mediastinal lymph node (LN) stations were independent prognostic factors. The patient group with combined negative survivin/single mediastinal LN station were the most favourable prognostic group, and was related to the clinical nodal factor. Indeed, patients with negative survivin/low Ki-67 labelling indices had the best survival, especially in nonsquamous histopathology. The current authors conclude that nuclear survivin is strongly related to lymph node metastasis and proliferative potentials in pathological N2 nonsmall cell lung cancer patients. Pre-operative N2 nonsmall cell lung cancer patients with combined negative nuclear survivin and a single mediastinal lymph node station, or low proliferative indices, particularly in clinical N0-1 disease and nonsquamous histopathology, respectively, are expected to have a favourable post-operative prognosis and may be candidates for primary resection.
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Affiliation(s)
- S Mohamed
- Department of Thoracic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-Ku, Chiba 260-8670, Japan
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Mohamed S, Yasufuku K, Nakajima T, Hiroshima K, Kubo R, Iyoda A, Yoshida S, Suzuki M, Sekine Y, Shibuya K, Farouk A, Fujisawa T. Analysis of cell cycle-related proteins in mediastinal lymph nodes of patients with N2-NSCLC obtained by EBUS-TBNA: relevance to chemotherapy response. Thorax 2008; 63:642-7. [DOI: 10.1136/thx.2007.090324] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [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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43
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Muromoto R, Sekine Y, Imoto S, Ikeda O, Okayama T, Sato N, Matsuda T. BART is essential for nuclear retention of STAT3. Int Immunol 2008; 20:395-403. [DOI: 10.1093/intimm/dxm154] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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44
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Sekine Y, Kitano M, Akimoto T, Matsuda K. [The saccular coronary aneurysm associated with coronary artery to pulmonary artery fistulae]. Kyobu Geka 2007; 60:1137-1141. [PMID: 18078077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Coronary artery fistulae are relatively rare congenital anomalies. Those associated with saccular coronary artery aneurysms are even rarer. Including the current case, only 65 such cases have been reported in Japan. A 62-year-old female was admitted to our hospital for evaluation of abnormal shadow on the chest X-ray. The enhanced chest computed tomography (CT) scan demonstrated a giant saccular coronary aneurysm on the left side of the pulmonary artery. Multi-detector row CT (MDCT) scan demonstrated the coronary artery aneurysm was connected to the left anterior descending artery. Coronary angiography revealed 2 aneurysms with bilateral coronary artery to pulmonary artery fistulae. The patient underwent aneurysmectomy and ligation of fistulae under cardiopulomonary bypass. The postoperative course was uneventful and postoperative coronary angiography revealed complete resection of the aneurysms and only slight blood flow through the fistulae. She was discharged on the 10th postoperative day.
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Affiliation(s)
- Y Sekine
- Department of Cardiovascular Surgery, Shizuoka General Hospital, Shizuoka, Japan
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45
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Sekine Y, Kitano M, Akimoto T, Matsuda K. [Perioperative coronary spasm in the modified Bentall's operation for localized dissecting aneurysm of Valsalva sinuses]. Kyobu Geka 2007; 60:794-9. [PMID: 17703616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A 55-year-old man had suffered from chest oppression while asleep for 1 to 2 years. Moderate aortic regurgitation and aneurysm of Valsalva sinuses were revealed by echocardiography. It was diagnosed as chronic localized dissecting aneurysm of Valsalva sinuses during the operation, and modified Bentall's operation was performed. The patient was extubated 2 hours after the operation. ST segment depression in leads I, aV(L) and V3-V6, and elevation in leads III and aV(R) suddenly occurred 5 hours after the operation. However, hemodynamics was very stable, and he complained of no chest pain. Cardiac asystole was detected 7 hours after the operation, and percutaneous cardiopulmonary support as well as intraaortic balloon pumping (IABP) was immediately started. Emergency coronary angiography revealed acute myocardial infarction due to severe coronary spasm in the left coronary artery. The patient expired on the 3rd postoperative day.
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Affiliation(s)
- Y Sekine
- Department of Cardiovascular Surgery, Shizuoka General Hospital, Shizuoka, Japan
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46
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Nakajima T, Kimura H, Suzuki M, Wada H, Ando S, Iida T, Sekine Y, Fujisawa T. A prospective phase II study of a new treatment protocol for NSCLC combined with preoperative mediastinoscopy and chemotherapy. Thorac Cardiovasc Surg 2007; 55:317-21. [PMID: 17629863 DOI: 10.1055/s-2006-955961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND We have developed a new multimodal treatment protocol combined with video-assisted mediastinoscopy (VAM) and chemotherapy. METHODS Forty-four pN2 non-small cell lung cancer (NSCLC) cases were selected from the surgically treated groups and the prognoses were compared between October 1998 and December 2004. Patients negative for nodes on examination by VAM (VAM-negative: group 2) underwent thoracotomy, and those positive for nodes (VAM-positive) received induction chemotherapy. After chemotherapy, only patients who met the surgical criteria underwent thoracotomy (group 3), and the remaining cases were allocated to radiotherapy (group 4) or best supportive care. When none of the VAM criteria were met (group 1), thoracotomy was performed without VAM. RESULTS The overall 3- and 5-year survival rates were 42.1 % and 28.0 %. The survival rates in groups 2 and 3 were almost the same ( P = 0.5392), even though there were significantly more patients with multiple N2 stations in group 3 ( P = 0.0088). CONCLUSIONS Preoperative detection of lymph node metastasis by VAM makes use of the benefits of surgical intervention, and adjuvant therapies improve the survival of NSCLC patients with N2 disease.
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Affiliation(s)
- T Nakajima
- Department of Thoracic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
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47
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Sekine Y, Ikeda O, Hayakawa Y, Tsuji S, Imoto S, Aoki N, Sugiyama K, Matsuda T. DUSP22/LMW-DSP2 regulates estrogen receptor-alpha-mediated signaling through dephosphorylation of Ser-118. Oncogene 2007; 26:6038-49. [PMID: 17384676 DOI: 10.1038/sj.onc.1210426] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
In the previous study, we demonstrated the involvement of dual specificity phosphatase 22 (DUSP22/LMW-DSP2) in regulating the leukemia inhibitory factor/interleukin-6/signal transducer and activator of transcription 3-mediated signaling pathway. In this study, we show beta-estradiol (E2)-induced DUSP22 mRNA expression in estrogen receptor alpha (ERalpha)-positive breast cancer cells, whereas E2-induced phosphorylation and activation of ERalpha was suppressed by overexpression of DUSP22 but not catalytically inactive mutants. Furthermore, small-interfering RNA-mediated reduction of DUSP22 expression enhanced ERalpha-mediated transcription and endogenous gene expression. In fact, DUSP22 associated with ERalpha in vivo and both endogenous proteins interacted in ERalpha-positive breast cancer T47D cells. These results strongly suggest that DUSP22 acts as a negative regulator of the ERalpha-mediated signaling pathway.
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Affiliation(s)
- Y Sekine
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo, Japan
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48
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Wong M, Yasufuku K, Nakajima T, Herth FJF, Sekine Y, Shibuya K, Iizasa T, Hiroshima K, Lam WK, Fujisawa T. Endobronchial ultrasound: new insight for the diagnosis of sarcoidosis. Eur Respir J 2007; 29:1182-6. [PMID: 17331972 DOI: 10.1183/09031936.00028706] [Citation(s) in RCA: 157] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A diagnosis of sarcoidosis should be substantiated by pathological means in order to thoroughly exclude other diseases. The role of real-time endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in the diagnosis of sarcoidosis has not been reported. The purpose of the present study is to evaluate the diagnostic yield of EBUS-TBNA in demonstrating the pathological features of sarcoidosis. In total, 65 patients with suspected sarcoidosis, with enlarged hilar or mediastinal lymph nodes on computed tomography, were included in the study. Patients with a suspected or known malignancy or previously established diagnosis of sarcoidosis were excluded. Convex probe endobronchial ultrasonography integrated with a separate working channel was used for EBUS-TBNA. Surgical methods were performed in those in whom no granulomas were detected by EBUS-TBNA. Patients were followed up clinically. EBUS-TBNA was performed on a total of 77 lymph node stations in 65 patients. A final diagnosis of sarcoidosis was made for 61 (93.8%) of the patients. The remaining four patients were diagnosed as having Wegener's granulomatosis (n=1) or indefinite (n=3). In patients with a final diagnosis of sarcoidosis, EBUS-TBNA demonstrated noncaseating epithelioid cell granulomas in 56 (91.8%) of the patients. No complications were reported. Endobronchial ultrasound-guided transbronchial needle aspiration proved to be a safe procedure with a high yield for the diagnoses of sarcoidosis.
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Affiliation(s)
- M Wong
- Department of Thoracic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan, and Queen Mary Hospital, Hong Kong SAR, China
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49
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Ikeda M, Ozaki N, Suzuki T, Kitajima T, Yamanouchi Y, Kinoshita Y, Kishi T, Sekine Y, Iyo M, Harano M, Komiyama T, Yamada M, Sora I, Ujike H, Inada T, Iwata N. Possible association of ?-arrestin 2 gene with methamphetamine use disorder, but not schizophrenia. Genes Brain Behav 2007; 6:107-12. [PMID: 17233643 DOI: 10.1111/j.1601-183x.2006.00237.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recent investigations suggest that the AKT/glycogen synthase kinase 3 (GSK3) signaling cascade may be associated with the pathophysiology of schizophrenia and methamphetamine (METH) use disorder. One important molecule related to this cascade is beta-arrestin 2 (ARRB2). We therefore conducted a genetic case-control association analysis of the gene for ARRB2 with schizophrenia and METH use disorder in a Japanese population (547 people with schizophrenia, 177 with METH use disorder and 546 controls). A possible association of 'tag single nucleotide polymorphisms (SNPs)' was found in METH use disorder (rs1045280: P(genotype) = 0.0118, P(allele) = 0.00351; rs2036657: P(allele) = 0.0431; rs4790694: P(genotype) = 0.0167, P(allele) = 0.0202), but no association was found with schizophrenia. We also evaluated the gene-gene interactions among ARRB2, AKT1, and GSK3B, which we previously reported for each of these diseases. However, no interaction was seen in our samples. This is the first association analysis of ARRB2, and our results indicate that ARRB2 may play a role in the pathophysiology of METH use disorder.
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Affiliation(s)
- M Ikeda
- Department of Psychiatry, Fujita Health University School of Medicine, Aichi, Japan.
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50
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Morio A, Ujike H, Nomura A, Tanaka Y, Morita Y, Otani K, Kishimoto M, Harano M, Inada T, Komiyama T, Yamada M, Sekine Y, Iwata N, Iyo M, Sora I, Ozaki N, Kuroda S. No association between CART (cocaine- and amphetamine-regulated transcript) gene and methamphetamine dependence. Ann N Y Acad Sci 2007; 1074:411-7. [PMID: 17105939 DOI: 10.1196/annals.1369.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Cocaine- and amphetamine-regulated transcript (CART) was originally discovered as a peptide that increased in the rat striatum after injection of a psychostimulant drug, such as cocaine or amphetamine, and is suggested to play potential roles in drug dependence. We tested the genetic association between the CART gene and methamphetamine (METH) dependence and/or psychosis. The subjects were 203 patients with METH dependence and 239 age- and gender-matched healthy controls. Two single nucleotide polymorphisms (SNPs) of the CART gene, -156A>G and IVS1 + 224G>A, were examined . There were no significant differences in genotype and allele distributions of the polymorphisms between patients with METH dependence and/or psychosis and controls. Neither were significant differences in subgroups of clinical phenotypes, for example, age at first consumption of METH, latency to onset of psychotic symptoms after the first consumption of METH, prognosis of psychosis after therapy, complication of spontaneous relapse to a psychotic state, or multisubstance abuse status, observed. The present findings suggest that the CART gene may not play a pivotal role in the development of METH dependence and psychosis, at least in a Japanese population.
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Affiliation(s)
- A Morio
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Okayama 700-8558, Japan
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