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Higuchi Y, Ogata T, Nakanishi N, Nishi M, Tsuji Y, Tomita S, Conway SJ, Matoba S. Cavin-2 promotes fibroblast-to-myofibroblast trans-differentiation and aggravates cardiac fibrosis. ESC Heart Fail 2024; 11:167-178. [PMID: 37872863 PMCID: PMC10804157 DOI: 10.1002/ehf2.14571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 09/22/2023] [Accepted: 10/08/2023] [Indexed: 10/25/2023] Open
Abstract
AIMS Transforming growth factor β (TGF-β) signalling is one of the critical pathways in fibroblast activation, and several drugs targeting the TGF-β/Smad signalling pathway in heart failure with cardiac fibrosis are being tested in clinical trials. Some caveolins and cavins, which are components of caveolae on the plasma membrane, are known for their association with the regulation of TGF-β signalling. Cavin-2 is particularly abundant in fibroblasts; however, the detailed association between Cavin-2 and cardiac fibrosis is still unclear. We tried to clarify the involvement and role of Cavin-2 in fibroblasts and cardiac fibrosis. METHODS AND RESULTS To clarify the role of Cavin-2 in cardiac fibrosis, we performed transverse aortic constriction (TAC) operations on four types of mice: wild-type (WT), Cavin-2 null (Cavin-2 KO), Cavin-2flox/flox , and activated fibroblast-specific Cavin-2 conditional knockout (Postn-Cre/Cavin-2flox/flox , Cavin-2 cKO) mice. We collected mouse embryonic fibroblasts (MEFs) from WT and Cavin-2 KO mice and investigated the effect of Cavin-2 in fibroblast trans-differentiation into myofibroblasts and associated TGF-β signalling. Four weeks after TAC, cardiac fibrotic areas in both the Cavin-2 KO and the Cavin-2 cKO mice were significantly decreased compared with each control group (WT 8.04 ± 1.58% vs. Cavin-2 KO 0.40 ± 0.03%, P < 0.01; Cavin-2flox/flox , 7.19 ± 0.50% vs. Cavin-2 cKO 0.88 ± 0.44%, P < 0.01). Fibrosis-associated mRNA expression (Col1a1, Ctgf, and Col3) was significantly attenuated in the Cavin-2 KO mice after TAC. α1 type I collagen deposition and non-vascular αSMA-positive cells (WT 43.5 ± 2.4% vs. Cavin-2 KO 25.4 ± 3.2%, P < 0.01) were reduced in the heart of the Cavin-2 cKO mice after TAC operation. The levels of αSMA protein (0.36-fold, P < 0.05) and fibrosis-associated mRNA expression (Col1a1, 0.69-fold, P < 0.01; Ctgf, 0.27-fold, P < 0.01; Col3, 0.60-fold, P < 0.01) were decreased in the Cavin-2 KO MEFs compared with the WT MEFs. On the other hand, αSMA protein levels were higher in the Cavin-2 overexpressed MEFs compared with the control MEFs (2.40-fold, P < 0.01). TGF-β1-induced Smad2 phosphorylation was attenuated in the Cavin-2 KO MEFs compared with WT MEFs (0.60-fold, P < 0.01). Heat shock protein 90 protein levels were significantly reduced in the Cavin-2 KO MEFs compared with the WT MEFs (0.69-fold, P < 0.01). CONCLUSIONS Cavin-2 loss suppressed fibroblast trans-differentiation into myofibroblasts through the TGF-β/Smad signalling. The loss of Cavin-2 in cardiac fibroblasts suppresses cardiac fibrosis and may maintain cardiac function.
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Affiliation(s)
- Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - Takehiro Ogata
- Department of Cardiovascular Medicine, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
- Department of Pathology and Cell Regulation, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - Naohiko Nakanishi
- Department of Cardiovascular Medicine, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - Masahiro Nishi
- Department of Cardiovascular Medicine, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - Yumika Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - Shinya Tomita
- Department of Cardiovascular Medicine, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
| | - Simon J. Conway
- Herman B. Wells Center for Pediatric Research, Department of PediatricsIndiana University School of MedicineIndianapolisINUSA
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical ScienceKyoto Prefectural University of MedicineKyotoJapan
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2
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Tomita S, Nakanishi N, Ogata T, Higuchi Y, Sakamoto A, Tsuji Y, Suga T, Matoba S. The Cavin-1/Caveolin-1 interaction attenuates BMP/Smad signaling in pulmonary hypertension by interfering with BMPR2/Caveolin-1 binding. Commun Biol 2024; 7:40. [PMID: 38182755 PMCID: PMC10770141 DOI: 10.1038/s42003-023-05693-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 12/11/2023] [Indexed: 01/07/2024] Open
Abstract
Caveolin-1 (CAV1) and Cavin-1 are components of caveolae, both of which interact with and influence the composition and stabilization of caveolae. CAV1 is associated with pulmonary arterial hypertension (PAH). Bone morphogenetic protein (BMP) type 2 receptor (BMPR2) is localized in caveolae associated with CAV1 and is commonly mutated in PAH. Here, we show that BMP/Smad signaling is suppressed in pulmonary microvascular endothelial cells of CAV1 knockout mice. Moreover, hypoxia enhances the CAV1/Cavin-1 interaction but attenuates the CAV1/BMPR2 interaction and BMPR2 membrane localization in pulmonary artery endothelial cells (PAECs). Both Cavin-1 and BMPR2 are associated with the CAV1 scaffolding domain. Cavin-1 decreases BMPR2 membrane localization by inhibiting the interaction of BMPR2 with CAV1 and reduces Smad signal transduction in PAECs. Furthermore, Cavin-1 knockdown is resistant to CAV1-induced pulmonary hypertension in vivo. We demonstrate that the Cavin-1/Caveolin-1 interaction attenuates BMP/Smad signaling and is a promising target for the treatment of PAH.
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Affiliation(s)
- Shinya Tomita
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Naohiko Nakanishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan.
| | - Takehiro Ogata
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
- Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Akira Sakamoto
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Yumika Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Takaomi Suga
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
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3
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Kasahara T, Ogata T, Nakanishi N, Tomita S, Higuchi Y, Maruyama N, Hamaoka T, Matoba S. Cavin-2 loss exacerbates hypoxia-induced pulmonary hypertension with excessive eNOS phosphorylation and protein nitration. Heliyon 2023; 9:e17193. [PMID: 37360100 PMCID: PMC10285171 DOI: 10.1016/j.heliyon.2023.e17193] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/28/2023] Open
Abstract
Pulmonary hypertension (PH) is associated with a poor prognosis even in recent years. Caveolin-1 (CAV1), a caveolae-associated protein, is a causal gene in PH. Cavin-2, one of the other caveolae-associated proteins, forms protein complexes with CAV1 and influences each other's functions. However, the role of Cavin-2 in PH has not been thoroughly investigated. To clarify the role of Cavin-2 in PH, we exposed Cavin-2-deficient (Cavin-2 KO) mice to hypoxia. A part of the analyses was confirmed in human pulmonary endothelial cells (HPAECs). After 4-week 10% O2 hypoxic exposure, we performed physiological, histological, and immunoblotting analyses. Right ventricular (RV) systolic pressure elevation and RV hypertrophy were exacerbated in Cavin-2 KO mice with hypoxia-induced PH (Cavin-2 KO PH mice). The vascular wall thickness of pulmonary arterioles was aggravated in Cavin-2 KO PH mice. Cavin-2 loss reduced CAV1 and induced sustained endothelial nitric oxide synthase (eNOS) hyperphosphorylation in the Cavin-2 KO PH lungs and HPAECs. NOx production associated with eNOS phosphorylation was also increased in the Cavin-2 KO PH lung and HPAECs. Furthermore, the nitration of proteins, including protein kinase G (PKG), was raised in the Cavin-2 KO PH lungs. In conclusion, we revealed that Cavin-2 loss exacerbated hypoxia-induced PH. Our results suggest that Cavin-2 loss leads to sustained eNOS hyperphosphorylation in pulmonary artery endothelial cells via CAV1 reduction, resulting in Nox overproduction-mediated nitration of proteins, including PKG, in smooth muscle cells.
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Affiliation(s)
- Takeru Kasahara
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Takehiro Ogata
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
- Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Naohiko Nakanishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Shinya Tomita
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Naoki Maruyama
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Tetsuro Hamaoka
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
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4
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Matsukiyo S, Yamazaki R, Morita T, Tomita K, Kuramitsu Y, Sano T, Tanaka SJ, Takezaki T, Isayama S, Higuchi T, Murakami H, Horie Y, Katsuki N, Hatsuyama R, Edamoto M, Nishioka H, Takagi M, Kojima T, Tomita S, Ishizaka N, Kakuchi S, Sei S, Sugiyama K, Aihara K, Kambayashi S, Ota M, Egashira S, Izumi T, Minami T, Nakagawa Y, Sakai K, Iwamoto M, Ozaki N, Sakawa Y. High-power laser experiment on developing supercritical shock propagating in homogeneously magnetized plasma of ambient gas origin. Phys Rev E 2022; 106:025205. [PMID: 36109929 DOI: 10.1103/physreve.106.025205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 07/24/2022] [Indexed: 06/15/2023]
Abstract
A developing supercritical collisionless shock propagating in a homogeneously magnetized plasma of ambient gas origin having higher uniformity than the previous experiments is formed by using high-power laser experiment. The ambient plasma is not contaminated by the plasma produced in the early time after the laser shot. While the observed developing shock does not have stationary downstream structure, it possesses some characteristics of a magnetized supercritical shock, which are supported by a one-dimensional full particle-in-cell simulation taking the effect of finite time of laser-target interaction into account.
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Affiliation(s)
- S Matsukiyo
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- International Research Center for Space and Planetary Environmental Science, Kyushu University, Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - R Yamazaki
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Morita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - K Tomita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Division of Quantum Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Sano
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S J Tanaka
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Takezaki
- Faculty of Engineering, University of Toyama, 3190, Gofuku, Toyama 930-8555, Japan
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College, 5-20-1 Shii, Kokuraminamiku, Kitakyushu, Fukuoka 802-0985, Japan
| | - S Isayama
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- International Research Center for Space and Planetary Environmental Science, Kyushu University, Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
| | - T Higuchi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - H Murakami
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Y Horie
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - N Katsuki
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - R Hatsuyama
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - M Edamoto
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - H Nishioka
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - M Takagi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - T Kojima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S Tomita
- Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - N Ishizaka
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kakuchi
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Sei
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Sugiyama
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Aihara
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kambayashi
- Department of Physical Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Ota
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - S Egashira
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Izumi
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Nakagawa
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - K Sakai
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - M Iwamoto
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - N Ozaki
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
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5
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Yamazaki R, Matsukiyo S, Morita T, Tanaka SJ, Umeda T, Aihara K, Edamoto M, Egashira S, Hatsuyama R, Higuchi T, Hihara T, Horie Y, Hoshino M, Ishii A, Ishizaka N, Itadani Y, Izumi T, Kambayashi S, Kakuchi S, Katsuki N, Kawamura R, Kawamura Y, Kisaka S, Kojima T, Konuma A, Kumar R, Minami T, Miyata I, Moritaka T, Murakami Y, Nagashima K, Nakagawa Y, Nishimoto T, Nishioka Y, Ohira Y, Ohnishi N, Ota M, Ozaki N, Sano T, Sakai K, Sei S, Shiota J, Shoji Y, Sugiyama K, Suzuki D, Takagi M, Toda H, Tomita S, Tomiya S, Yoneda H, Takezaki T, Tomita K, Kuramitsu Y, Sakawa Y. High-power laser experiment forming a supercritical collisionless shock in a magnetized uniform plasma at rest. Phys Rev E 2022; 105:025203. [PMID: 35291161 DOI: 10.1103/physreve.105.025203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
We present an experimental method to generate quasiperpendicular supercritical magnetized collisionless shocks. In our experiment, ambient nitrogen (N) plasma is at rest and well magnetized, and it has uniform mass density. The plasma is pushed by laser-driven ablation aluminum (Al) plasma. Streaked optical pyrometry and spatially resolved laser collective Thomson scattering clarify structures of plasma density and temperatures, which are compared with one-dimensional particle-in-cell simulations. It is indicated that just after the laser irradiation, the Al plasma is magnetized by a self-generated Biermann battery field, and the plasma slaps the incident N plasma. The compressed external field in the N plasma reflects N ions, leading to counterstreaming magnetized N flows. Namely, we identify the edge of the reflected N ions. Such interacting plasmas form a magnetized collisionless shock.
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Affiliation(s)
- R Yamazaki
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Matsukiyo
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - T Morita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S J Tanaka
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - T Umeda
- Institute for Space-Earth Environmental Research, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan
| | - K Aihara
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Edamoto
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - S Egashira
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - R Hatsuyama
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Higuchi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Hihara
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Horie
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - M Hoshino
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - A Ishii
- Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, Potsdam-Golm 14476, Germany
| | - N Ishizaka
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Itadani
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - T Izumi
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - S Kambayashi
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kakuchi
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - N Katsuki
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - R Kawamura
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Kawamura
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Kisaka
- Department of Physical Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - T Kojima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - A Konuma
- Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - R Kumar
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Minami
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - I Miyata
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - T Moritaka
- Fundamental Physics Simulation Research Division, National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
| | - Y Murakami
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - K Nagashima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - Y Nakagawa
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - T Nishimoto
- School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Nishioka
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - Y Ohira
- Department of Earth and Planetary Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - N Ohnishi
- Department of Aerospace Engineering, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba, Sendai, Miyagi 980-8579, Japan
| | - M Ota
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - N Ozaki
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - T Sano
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Sakai
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Sei
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - J Shiota
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Shoji
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Sugiyama
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - D Suzuki
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - M Takagi
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan
| | - H Toda
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - S Tomita
- Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Tomiya
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - H Yoneda
- Institute for Laser Science, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
| | - T Takezaki
- Department of Creative Engineering, National Institute of Technology, Kitakyushu College, 5-20-1 Shii, Kokuraminamiku, Kitakyushu, Fukuoka 802-0985, Japan
- Faculty of Engineering, University of Toyama, 3190, Gofuku, Toyama 930-8555, Japan
| | - K Tomita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- Division of Quantum Science and Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, 2-6, Yamadaoka, Suita, Osaka 565-0871, Japan
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Higuchi Y, Ogata T, Nakanishi N, Nishi M, Sakamoto A, Tsuji Y, Tomita S, Matoba S. Requirement of Cavin-2 for the expression and stability of IRβ in adequate adipocyte differentiation. Mol Metab 2021; 55:101416. [PMID: 34896640 PMCID: PMC8728525 DOI: 10.1016/j.molmet.2021.101416] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/29/2021] [Accepted: 12/07/2021] [Indexed: 12/22/2022] Open
Abstract
Objective Adipogenesis plays an essential role in maintaining energy and hormonal balance. Cavin-2, one of the caveolae-related proteins, is abundant in adipocytes, the leading site of adipogenesis. However, the details of the roles of Cavin-2 in adipogenesis remain unknown. Here, we demonstrate the requirement of Cavin-2 for the expression and stability of IRβ in adequate adipocyte differentiation. Methods Cavin-2 knockout (Cavin-2 KO) and wild-type (WT) mice were fed with a high-fat diet (HFD) for 8 weeks. We evaluated body weight, food intake, and several tissues. Glucose homeostasis was assessed by glucose and insulin tolerance tests. Insulin signaling in epididymal white adipose tissue (eWAT) was determined by Akt phosphorylation. In vitro study, we evaluated adipocyte differentiation, adipogenesis-related genes, and insulin signaling to clarify the relationship between Cavin-2 and adipogenesis under the manipulation of Cavin-2 expression. Results Caveolae structure decreased in eWAT of Cavin-2 KO mice and Cavin-2 knockdown 3T3-L1 cells. Cavin-2 enhanced the stability of insulin receptor (IR) through direct association at the plasma membrane in adipocytes, resulting in accelerated insulin/IR/Akt signaling-induced adipogenic gene expression in insulin-containing solution-stimulated 3T3-L1 adipocytes. IR-mediated Akt activation also enhanced Cavin-2 and IR expression. Cavin-2 knockout mice showed insulin resistance with dyslipidemia and pathological hypertrophic adipocytes after a HFD. Conclusions Cavin-2 enhances IR stability through binding IR and regulates insulin signaling, promoting adequate adipocyte differentiation. Our findings highlight the pivotal role of Cavin-2 in adipogenesis and lipid metabolism, which may help to develop novel therapies for pathological obesity and adipogenic disorders. Cavin-2 expression is increased progressively during adipocyte differentiation. Cavin-2 knockout shows little caveolae in 3T3L-1 adipocytes and eWAT of mice. Cavin-2 positively regulates adipogenesis through IR stabilization. Cavin-2 knockout mice with a high-fat diet show insulin resistance and dyslipidemia.
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Affiliation(s)
- Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Takehiro Ogata
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan; Department of Pathology and Cell Regulation, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan.
| | - Naohiko Nakanishi
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Masahiro Nishi
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Akira Sakamoto
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Yumika Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Shinya Tomita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto 602-8566, Japan
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Nishi M, Ogata T, Kobayakawa K, Kobayakawa R, Matsuo T, Cannistraci CV, Tomita S, Taminishi S, Suga T, Kitani T, Higuchi Y, Sakamoto A, Tsuji Y, Soga T, Matoba S. Energy-sparing by 2-methyl-2-thiazoline protects heart from ischaemia/reperfusion injury. ESC Heart Fail 2021; 9:428-441. [PMID: 34854235 PMCID: PMC8787978 DOI: 10.1002/ehf2.13732] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/13/2021] [Accepted: 11/11/2021] [Indexed: 11/06/2022] Open
Abstract
AIMS Cardiac ischaemia/reperfusion (I/R) injury remains a critical issue in the therapeutic management of ischaemic heart failure. Although mild hypothermia has a protective effect on cardiac I/R injury, more rapid and safe methods that can obtain similar results to hypothermia therapy are required. 2-Methyl-2-thiazoline (2MT), an innate fear inducer, causes mild hypothermia resulting in resistance to critical hypoxia in cutaneous or cerebral I/R injury. The aim of this study is to demonstrate the protective effect of systemically administered 2MT on cardiac I/R injury and to elucidate the mechanism underlying this effect. METHODS AND RESULTS A single subcutaneous injection of 2MT (50 mg/kg) was given prior to reperfusion of the I/R injured 10 week-old male mouse heart and its efficacy was evaluated 24 h after the ligation of the left anterior descending coronary artery. 2MT preserved left ventricular systolic function following I/R injury (ejection fraction, %: control 37.9 ± 6.7, 2MT 54.1 ± 6.4, P < 0.01). 2MT also decreased infarct size (infarct size/ischaemic area at risk, %: control 48.3 ± 12.1, 2MT 25.6 ± 4.2, P < 0.05) and serum cardiac troponin levels (ng/mL: control 8.9 ± 1.1, 2MT 1.9 ± 0.1, P < 0.01) after I/R. Moreover, 2MT reduced the oxidative stress-exposed area within the heart (%: control 25.3 ± 4.7, 2MT 10.8 ± 1.4, P < 0.01). These results were supported by microarray analysis of the mouse hearts. 2MT induced a transient, mild decrease in core body temperature (°C: -2.4 ± 1.4), which gradually recovered over several hours. Metabolome analysis of the mouse hearts suggested that 2MT minimized energy metabolism towards suppressing oxidative stress. Furthermore, 18F-fluorodeoxyglucose-positron emission tomography/computed tomography imaging revealed that 2MT reduced the activity of brown adipose tissue (standardized uptake value: control 24.3 ± 6.4, 2MT 18.4 ± 5.8, P < 0.05). 2MT also inhibited mitochondrial respiration and glycolysis in rat cardiomyoblasts. CONCLUSIONS We identified the cardioprotective effect of systemically administered 2MT on cardiac I/R injury by sparing energy metabolism with reversible hypothermia. Our results highlight the potential of drug-induced hypothermia therapy as an adjunct to coronary intervention in severe ischaemic heart disease.
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Affiliation(s)
- Masahiro Nishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.,Cardiovascular Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Takehiro Ogata
- Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan
| | - Ko Kobayakawa
- Functional Neuroscience Lab, Kansai Medical University, Hirakata, Japan
| | - Reiko Kobayakawa
- Functional Neuroscience Lab, Kansai Medical University, Hirakata, Japan
| | - Tomohiko Matsuo
- Functional Neuroscience Lab, Kansai Medical University, Hirakata, Japan
| | - Carlo Vittorio Cannistraci
- Center for Complex Network Intelligence (CCNI), Tsinghua Laboratory of Brain and Intelligence (THBI), Department of Computer Science, Department of Biomedical Engineering, Tsinghua University, China.,Center for Systems Biology Dresden (CSBD), Dresden, Germany
| | - Shinya Tomita
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shunta Taminishi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takaomi Suga
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoya Kitani
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yusuke Higuchi
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Akira Sakamoto
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yumika Tsuji
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomoyoshi Soga
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Satoaki Matoba
- Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Tomita S, Nakanishi N, Ogata T, Suga T, Tsuji Y, Sakamoto A, Higuchi Y, Matoba S. Cavin-1 modulates BMP/Smad signaling through the interaction of Caveolin-1 with BMPRII in pulmonary artery endothelial cells. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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
Pulmonary hypertension (PH) is a progressive disease associated with poor outcomes. Caveolin-1 (Cav1) and Cavin-1 are components of caveolae, and Cav1 is identified as a related gene of pulmonary arterial hypertension (PAH). Gene mutations of bone morphogenetic protein type II receptor (BMPRII) is the most common cause of PAH. BMPRII is localized in caveolae and associates with Cav1. However, the role of the Caveolin-Cavin system on the BMP/Smad signaling and the PAH progression has not been well-known.
Purpose
Our study aims to investigate the relationship between Caveolin-Cavin system and BMP/Smad signaling pathway in pulmonary artery endothelial cells (PAECs). [Methods] Cav1 knockout mice were used to assess PH, and caveolae in PAECs were observed by electron microscope. After knocking down Cav1 and/or Cavin-1 in human PAECs (hPAECs) using siRNA, we evaluated the phosphorylation of Smad by Western blotting. Apoptosis was explored by flow cytometry. To assess the interaction between Cav1 and BMPRII, and the effect of Cavin-1 for this interaction and BMP/Smad signaling, we performed immunoprecipitation, Co-immunostaining, Proximal Ligation Assay (PLA), GST pulldown assay, and Western blotting.
Results
As in previous reports, Cav1 knockout mice exhibited PH with pulmonary vascular remodeling and right ventricular hypertrophy and PAECs isolated from Cav1 knockout mice showed caveolae disappearance. Cav1 knockdown in hPAECs reduced BMPRII at the plasma membrane and Smad 1/5/9 phosphorylation. Cav1 knockdown also significantly increased hypoxia-induced apoptosis in hPAECs. Co-immunostaining revealed that Cav1 was associated with BMPRII at the membrane of hPAECs. Cavin-1 inhibited the interaction of BMPRII with Cav1 and reduced BMPRII localization on the membrane of hPAECs. GST pulldown assay revealed that Cavin-1 and BMPRII were associated with Cav1 through the scaffolding domain in Cav1. These findings suggest that Cavin-1 and BMPRII are competitively associated with Cav1. Cavin-1 knockdown improved the interaction between Cav1 and BMPRII and inhibited both BMPRII reduction at the plasma membrane and Smad 1/5/9 dephosphorylation.
Conclusions
Cavin-1 affects the interaction of Cav1 with BMPRII at the plasma membrane and modulates BMP/Smad signaling in PAECs. The binding of Cavin-1 to Cav1 enhances the interaction between BMPR2 and Cav1, resulting in stabilization of BMPRII localization at the plasma membrane in PAECs and prevention of BMP/Smad signaling attenuation, which is important for PAH development.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Tomita
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Nakanishi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Ogata
- Kyoto Prefectural University of Medicine, Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto, Japan
| | - T Suga
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Tsuji
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - A Sakamoto
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Higuchi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Jo T, Tomita S, Kohmatsu Y, Osathanunkul M, Ushimaru A, Minamoto T. Seasonal monitoring of Hida salamander Hynobius kimurae using environmental DNA with a genus-specific primer set. ENDANGER SPECIES RES 2020. [DOI: 10.3354/esr01073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The diversity and the abundance of amphibians have dramatically declined globally over the past 30 years, and the monitoring and conservation of their habitats is essential. However, traditional methods such as bait trapping and mark-recapture are costly, and morphological identification usually requires a high level of taxonomic expertise. Here, seasonal surveillances of Hida salamanderHynobius kimuraewere performed by means of environmental DNA (eDNA) analysis withHynobius-specific primers and a species-specific TaqMan probe. Water sampling and visual surveys were conducted seasonally in a stream in Kyoto Prefecture, Japan. Detection rates of eDNA were then calculated by real-time PCR, and eDNA site occupancy probability was estimated by multi-scale occupancy modeling. The eDNA-based detection rate of Hida salamander was 76.7%, whereas the visual survey-based detection rate was 23.3%, and target eDNA was detected at almost all sites where the presence of target species was visually confirmed. Moreover, factors relating to the site- and sample-level occurrence probabilities of the target eDNA differed depending on the developmental stage of the target species. Our findings support previous studies showing that eDNA analysis enables an effective assessment of amphibian distributions without damaging the organisms or their habitat, and we compare for the first time the site occupancy probability of amphibian eDNA throughout the life cycle of an amphibian species. The present study contributes to the development of eDNA analysis as a tool for understanding the distribution and seasonal activity of amphibian species and will thus aid in the planning of conservation measures and habitat restoration for these species.
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Affiliation(s)
- T Jo
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
- Research Fellow of Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - S Tomita
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
| | - Y Kohmatsu
- Ritsumeikan-Global Innovation Research Organization, 56-1, Tojiin-Kitamachi, Kita-ku, Kyoto City, Kyoto 603-8577, Japan
| | - M Osathanunkul
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
- Center of Excellence in Bioresources for Agriculture, Industry and Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - A Ushimaru
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
| | - T Minamoto
- Graduate School of Human Development and Environment, Kobe University, 3-11, Tsurukabuto, Nada-ku, Kobe City, Hyogo 657-8501, Japan
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Takino K, Kameshima M, Asai C, Kawamura I, Tomita S, Hirakawa A, Yamada S. Efficacy of neuromuscular electro stimulation on muscle strength in elderly patients with diabetes mellitus underwent cardiovascular surgery – a multicenter randomized controlled trial. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3096] [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: 11/12/2022] Open
Abstract
Abstract
Introduction
Cardiovascular surgery causes muscle weakness probably due to a postoperative increase in inflammatory cytokine production, and diabetes mellitus (DM) may promote the postoperative muscle weakness because of increased insulin resistance.
Purpose
A multicenter randomized controlled trial was conducted to examine the effects of postoperative neuromuscular electrical stimulation (NMES) on muscle strength for elderly patients with DM after cardiovascular surgery (UMIN000029940).
Methods
Patients underwent cardiovascular surgery were consecutive screened for eligibility (With DM and age ≥65 years) as study subjects. If eligible, patients were randomly assigned either to the NMES or the sham group. Both of group underwent NMES or sham stimulation (60 minutes / 5 times) and usual postoperative early mobilization program until postoperative day (POD) 7. The primary outcome was the percent change in knee extensor isometric muscle strength (%ΔKEIS) between preoperative to POD 7. Secondary outcomes were the percent change in usual (%ΔUsual walking speed) and maximum walking speed (%ΔMaximum walking speed) and grip strength (%ΔGS). Assessors for physical function were blinded to the outcomes. The statistician who was blinded to the allocation analyzed the data using preoperative value adjusted ANCOVA.
Results
Of 1151 consecutive patients screened for eligibility from February 2018 to January 2020, 158 participants (NMES group, n=79; sham group, n=79) were enrolled. NMES group demonstrated significantly lower %ΔKEIS compared with those in the sham group (Table). Among secondary outcomes, NMES group showed significantly lower %ΔMaximum walking speed and tendency of lower %ΔUsual walking speed and %ΔGS (Table).
Conclusion
NMES prevented postoperative muscle weakness in the elderly patients with DM, indicating that NMES along with early mobilization could be implicated as specific intervention to those populations.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Takino
- Nagoya University Graduate School of Medicine, Program in Physical and Occupational Therapy, Nagoya, Japan
| | - M Kameshima
- Nagoya Heart Center, Department of cardiac rehabilitation, Nagoya, Japan
| | - C Asai
- Toyohashi Heart Center, Department of cardiac rehabilitation, Toyohashi, Japan
| | - I Kawamura
- Gifu Heart Center, Department of cardiology, Gifu, Japan
| | - S Tomita
- Gifu Heart Center, Department of cardiovascular surgery, Gifu, Japan
| | - A Hirakawa
- University of Tokyo, Department of Biostatics and Bioinformatics, Tokyo, Japan
| | - S Yamada
- Nagoya University Graduate School of Medicine, Department of Health Sciences, Nagoya, Japan
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Tomita S, Nakanishi N, Ogata T, Tsuji Y, Sakamoto A, Higuchi Y, Matoba S. Cavin-1 regulates BMP/Smad signaling through the interaction of Caveolin-1 with BMPRII in pulmonary artery endothelial cells. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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
Pulmonary hypertension (PH) is a progressive disease associated with poor outcome. Caveolin-1 (Cav1) is a component of caveolae and classified as a related gene of pulmonary arterial hypertension (PAH). Gene mutations of bone morphogenetic protein type II receptor (BMPRII) is a most common cause of PAH. BMPRII is localized in caveolae and associates with Cav1. However, the role of the Caveolin-Cavin system on the BMP/Smad signaling and the PAH progression has not been well-known.
Purpose
The aim of our study is to investigate the relationship between Caveolin-Cavin system and BMP/Smad signaling pathway and explore the mechanism of downstream signal transduction of BMP signaling by the interaction between Caveolin and BMPRII.
Methods
Cav1 knockout mice were used to assess PH and caveolae in pulmonary artery endothelial cells were observed by electron microscope. Cav1 and Cavin-1, which is a component of caveolae and form a complex with Cav1, were knocked-down in human pulmonary artery endothelial cell (hPAEC) using siRNA and phosphorylation of Smad signal was evaluated. Apoptosis of these cells was explored by flow cytometry. We investigated the interaction between Cav1 and BMPRII, and evaluated whether Cavin-1 affects this interaction and signal transduction of BMP signaling.
Results
As previously described, deletion of Cav1 revealed disappearance of caveolae in pulmonary artery endothelial cells (PAECs), and Cav1 knockout mice exhibited PH with pulmonary vascular remodeling and right ventricular hypertrophy. We then examined roles of Cav1 in human PAECs (hPAECs). Cav1 knockdown in hPAECs reduced phosphorylation of Smad 1/5/9. In addition, Cav1 knockdown significantly increased hypoxia-induced apoptosis in hPAEC. Knockdown of Cavin-1 reversed phosphorylation of Smad 1/5/9 decreased by Cav1 knockdown in BMP9 stimulation. Cavin-1 reversed the expression of BMPRII decreased by overexpression of Cav1. Cav1 was associated with Cavin-1 at the plasma membrane in PAECs. Cav1 also associated with BMPRII at the membrane of hPAECs that was inhibited by Cavin-1, and Cavin-1 reduced the localization of BMPRII to the membrane of hPAECs. These results suggest that BMPRII interacts with Cav1 via Cavin-1-associated localization at the plasma membrane in hPAECs, resulting in regulating BMP/Smad signaling pathway and involving in the development of PAH.
Conclusions
Cavin-1 affects the interaction of Cav1 with BMPRII at the membrane of PAECs, and regulates BMP/Smad signaling. These results reveal a previously undescribed function of Cavin-Caveolin system in the development of PAH through regulation of BMP/Smad signaling.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Tomita
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - N Nakanishi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Ogata
- Kyoto Prefectural University of Medicine, Department of Pathology and Cell Regulation, Graduate School of Medical Science, Kyoto, Japan
| | - Y Tsuji
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - A Sakamoto
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Higuchi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Sakamoto A, Ogata T, Nakanishi N, Higuchi Y, Tsuji Y, Tomita S, Matoba S. SDPR/Cavin-2 loss inhibits monocyte adhesion to endothelial cells in abdominal aortic aneurysm via suppressing the expression of adhesion molecules. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3794] [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
Abdominal aortic aneurysm (AAA) is a common and life-threatening vascular disease. The initial phase of AAA progression is vascular inflammation. Inflammation sites present adhesion molecules, such as vascular cell adhesion molecule-1 (VCAM-1) and intracellular cell adhesion molecule-1 (ICAM-1). These molecules play a crucial role in recruiting inflammatory cells to endothelial cells through NF-κB signaling. Endothelial cells express serum deprivation response (SDPR)/Cavin-2 localized in caveolae on the cell membrane. Although Cavin-2 is involved in such as cell proliferation, migration, and signal transduction, the role of Cavin-2 in vascular inflammation in the development of AAA is still unclear.
Purpose
To assess the influence of Cavin-2 deficiency in AAA development and clarify the role of Cavin-2 in the regulation of inflammatory cell adhesion in endothelial cells.
Methods
CaCl2-induced AAAs were induced by the periaortic application of 0.5 M CaCl2 in male SDPR-knockout (KO) and wild-type (WT) mice at 8–10 weeks of age. Angiotensin II (Ang II)-induced AAAs were created by 4-week-subcutaneous drug infusion in male ApoE-KO and ApoE/Cavin-2-double KO (DKO) mice at 24 weeks of age. Inflammatory response and cell adhesion were evaluated using human aortic endothelial cells (HAECs) and human monocytes (THP-1 cells).
Results
Six weeks after CaCl2 treatment, Cavin-2 deficiency significantly attenuated the development of AAAs. Elastin degradation was markedly suppressed and F4/80-positive macrophages infiltration in aortic walls were decreased in Cavin-2-KO mice. Although Ang II infusion for 4 weeks formed AAAs in ApoE KO mice and ApoE/Cavin-2-DKO mice, ApoE/Cavin-2-DKO mice exhibited the suppression of AAA formation independently of blood pressure. Immunohistochemical staining showed VCAM-1 expression on endothelial cells was suppressed in ApoE/Cavin-2-DKO mice. Further, in vitro co-culture experiment, the number of THP-1 cells adhered to TNF-treated SDPR-knockdown HAECs was decreased compared with that to control HAECs. Moreover, mRNA expression of VCAM-1 and ICAM-1 was decreased in TNFα-treated SDPR-knockdown HAECSs. Protein expression of VCAM-1 was also suppressed in TNFα-treated SDPR-knockdown HAECSs. The activity of NF-κB p65, an upstream regulator of VCAM-1 and ICAM-1,tended to be suppressed in TNFα-treated SDPR-knockdown HAECs.
Conclusion
In this study, we revealed that SDPR/Cavin-2 loss attenuated AAA development with the suppression of elastin degradation and macrophage infiltration. Our findings suggest that SDPR/Cavin-2 in the endothelial cells regulates the expression of adhesion molecules via NF-κB signaling and promotes the adhesion and infiltration of inflammatory cells to the aortic wall.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Sakamoto
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - T Ogata
- Kyoto Prefectural University of Medicine, Department of Pathology and Cell Regulation, Kyoto, Japan
| | - N Nakanishi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Higuchi
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - Y Tsuji
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Tomita
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
| | - S Matoba
- Kyoto Prefectural University of Medicine, Department of Cardiovascular Medicine, Kyoto, Japan
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Gill C, Tomita S, Suhner J, D'Andrea M, Umphlett M, Blank S, Tsankova N, Shrivastava R, Fowkes M, Kolev V. Tumor infiltrating lymphocytes in brain metastases from gynecological malignancies. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.439] [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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14
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Tomita S, Suhner J, Bucknor A, Orfanelli T, Carr C, Blank S, Loudon H. Perioperative bundle does not decrease the rate of surgical site infection in patients undergoing hysterectomy. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.483] [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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15
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Higuchi Y, Ogata T, Nakanishi N, Sakamoto A, Tsuji Y, Tomita S, Matoba S. Abstract 301: Cavin-2 Deletion Attenuates Fibroblast Activation and Cardiac Fibrosis via TGF-β Signaling by Interacting With Hsp90. Circ Res 2020. [DOI: 10.1161/res.127.suppl_1.301] [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: 11/16/2022]
Abstract
Introduction:
Heart failure (HF) is a progressive disease associated with high morbidity and mortality. A major cause of HF is the adverse tissue remodeling with interstitial fibrosis. Excessive extracellular matrix (ECM) accumulation is involved in the poor outcome. Transformation to myofibroblasts in resident fibroblasts has an important role for cardiac fibrosis on pressure-overload heart failure. TGF-β signaling is one of the critical pathways in fibroblast activation. Caveolae are major plasma membrane domain defined as 50-100 nm vesicular structures. Caveolins and cavins are known as caveolar-related proteins. TGF-β signaling is tightly connected with caveolae. A previous report shows that induction of Cav-1 expression leads to suppression of TGF-β signaling and an improvement of fibrosis. Although cavin-2/Serum deprivation response protein (SDPR) is also abundant in fibroblasts, the role of cavin-2 in cardiac fibrosis and function remains unknown.
Methods and Results:
To clarify the role of cavin-2 in cardiac fibroblasts in the pressure-overloaded heart, we performed TAC operation on cavin-2
flox/flox
mice and fibroblast-specific cavin-2 knockout (Postin
Cre
; SDPR
flox/flox
) mice (cavin-2 cKO). Four weeks after TAC, left ventricular fractional shortening (LVFS) was preserved with a significant reduction of cardiac fibrosis in cavin-2 cKO mice. Fibrosis-associated mRNA expression (
Col1a1, Ctgf, Col3
) and α1 type I collagen deposition were reduced in the hearts of cavin-2-cKO mice after TAC. Transdifferentiation of fibroblasts into activated myofibroblasts is a defining feature of fibrosis. Myofibroblasts express αSMA and secrete ECM proteins via Smad signaling. αSMA-positive cells without showing vascular structure were reduced in cavin-2 cKO after TAC. In mouse embryonic fibroblasts (MEFs), cavin-2 deficiency reduced TGF-β1-induced αSMA production and fibrosis-associated mRNA expression. On the other hand, adenovirus-mediated cavin-2 overexpression significantly increased αSMA production and the fibrosis-associated mRNA expressions. Furthermore, TGF-β1-induced Smad2/3 phosphorylation was attenuated in cavin-2 KO MEFs compared to wild-type (WT) MEFs. A protein-Protein interaction screening using a promiscuous biotin ligase, called BioID, revealed that cavin-2 interacted with Hsp90ab1 and Hsp90b1 which modulate collagen synthesis through regulation of SMA and SMAD pathway. The protein expression level of Hsp90 in cavin-2 KO MEFs significantly decreased compared with that in WT MEFs.
Conclusions:
Our observations suggest that cavin-2 contributes to the development of cardiac fibrosis through the differentiation from fibroblasts into myofibroblasts via TGF-β/Smad signaling. cavin-2 may be a novel therapeutic target for cardiac fibrosis.
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16
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Suhner J, Tomita S, Kolev V. Retroperitoneal Lymph Nodes: Cytoreduction in a Patient with Ovarian Cancer. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.527] [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: 10/25/2022]
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17
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Matsuda N, Fukuda N, Yamauchi M, Tsunoyama Y, Tomita S, Kita M. HIGH BACKGROUND AREA FOR RADIATION EDUCATION. Radiat Prot Dosimetry 2019; 184:294-297. [PMID: 31330016 DOI: 10.1093/rpd/ncz084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 06/10/2023]
Abstract
This paper describes our trial experience of the use of high radiation area for radiation education. We used environmental samples collected from the high radiation area in Fukushima prefecture and India, for the practice of radiation measurement and health risk assessment in Nagasaki University Medical School. We also carried out the field monitoring seminar for students in the existing exposure areas in Tottori prefecture and the Yamakiya observatory in Fukushima. Although the evaluation of educational effectiveness is still underway, both types of education appeared attractive for the students mostly due to the exposure from natural environment in our real life which was not achieved by using an artificial radiation source in a classroom.
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Affiliation(s)
- N Matsuda
- Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - N Fukuda
- Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - M Yamauchi
- Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, Japan
| | - Y Tsunoyama
- Radioisotope Research Center, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, Japan
| | - S Tomita
- Radiation Research and Management Center, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Japan
| | - M Kita
- Organization for Research Initiative and Promotion, Tottori University, 4-101 Koyama-cho Minami, Tottori, Japan
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18
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Kawamura I, Yoshizane T, Tanaka R, Minatoguchi S, Nagaya M, Ono K, Iwama M, Okumura N, Tsuchiya A, Tomita S, Matsuo H, Noda T, Suzuki T, Minatoguchi S, Kawasaki M. P6510Noninvasive evaluation of left ventricular relaxation and stiffness as diastolic function using speckle tracking echocardiography: validation study by cardiac catheterization. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6510] [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] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - T Yoshizane
- Gifu Prefectural General Medical Center, Gifu, Japan
| | - R Tanaka
- Murakami Memorial Hospital, Gifu, Japan
| | | | - M Nagaya
- Gifu Prefectural General Medical Center, Gifu, Japan
| | - K Ono
- Gifu Prefectural General Medical Center, Gifu, Japan
| | - M Iwama
- Gifu Prefectural General Medical Center, Gifu, Japan
| | | | | | | | | | - T Noda
- Gifu Prefectural General Medical Center, Gifu, Japan
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19
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Goto W, Kashiwagi S, Asano Y, Takada K, Takahashi K, Hatano T, Takashima T, Tomita S, Motomura H, Ohsawa M, Hirakawa K, Ohira M. Correction to: Circulating tumor cell clusters-associated gene plakoglobin is a significant prognostic predictor in patients with breast cancer. Biomark Res 2018. [PMID: 29541473 PMCID: PMC5842620 DOI: 10.1186/s40364-018-0124-0] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- W Goto
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - S Kashiwagi
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - Y Asano
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - K Takada
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - K Takahashi
- 2Department of Pharmacology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - T Hatano
- 3Department of Plastic and Reconstructive Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - T Takashima
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - S Tomita
- 2Department of Pharmacology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - H Motomura
- 3Department of Plastic and Reconstructive Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - M Ohsawa
- 4Department of Diagnostic Pathology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - K Hirakawa
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
| | - M Ohira
- 1Department of Surgical Oncology, Osaka City University Graduate School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585 Japan
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20
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Nogi H, Tomita S, Kamio M, Shioya H, Toriumi Y, Takeyama H. Abstract P4-13-16: Impact of immediate breast reconstruction after mastectomy on the outcome of patients receiving neoadjuvant chemotherapy. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-13-16] [Citation(s) in RCA: 1] [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: 11/16/2022]
Abstract
Abstract
Background and purpose
In breast cancer patients receiving neoadjuvant chemotherapy (NAC), immediate breast reconstruction (IBR) is controversial. IBR might favor recurrences and metastases due to delayed adjuvant radiation therapy.
We retrospectively investigated whether IBR after mastectomy influenced the outcome of patients receiving neoadjuvant chemotherapy.
Patients and methods
Between 2006 and 2016, 243 breast cancer patients received total mastectomy after NAC, 48 of whom underwent IBR. Patients receiving IBR (IBR group) were compared to patients who did not receive IBR (no-IBR group) over a prolonged median follow-up time (72.3 moths).
The regimen was 4 cycles of epirubicin (100 or 75 mg/m2), 5-fluorouracil (500 mg/m2), and cyclophosphamide (500 mg/m2) followed by 4 cycles of docetaxel (75 mg/m2). Post-mastectomy radiation was applied in cases treated by IBR following the same selection criteria as for standard mastectomy regardless of the reconstruction approach.
Results
Patients in the IBR group were on average younger than patients in no-IBR
group (p<0.001). The percentage of patients with clinical T1/2 tumor was 81.2% in the IBR group and 58.4% in no-IBR group (p=0.0042). 2 patients (4.2%) in the IBR group and 9 patients (4.6%) in no-IBR group showed the locoregional recurrences. 2 patients (4.2%) in the IBR group and 20 patients (10.3%) showed distant metastases. There were no significant differences.
Conclusions
IBR after total mastectomy was not associated with worse rate of locoregional recurrences in patients receiving NAC.
Citation Format: Nogi H, Tomita S, Kamio M, Shioya H, Toriumi Y, Takeyama H. Impact of immediate breast reconstruction after mastectomy on the outcome of patients receiving neoadjuvant chemotherapy [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-13-16.
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Affiliation(s)
- H Nogi
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - S Tomita
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - M Kamio
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - H Shioya
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - Y Toriumi
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
| | - H Takeyama
- Jikei University School of Medicinec, Minato-ku, Tokyo, Japan
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21
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Oguma J, Ozawa S, Kazuno A, Nitta M, Ninomiya Y, Tomita S. Clinicopahological features of superficial basaloid squamous cell carcinoma of the esophagus. Dis Esophagus 2017; 30:1-5. [PMID: 28881881 DOI: 10.1093/dote/dox076] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Indexed: 12/11/2022]
Abstract
Basaloid squamous cell carcinoma (BSC) of the esophagus is classified as an epithelial malignant tumor and is a rare variant of squamous cell carcinoma (SCC). Most previous reports have suggested that advanced BSC has a poorer prognosis than typical SCC because of its high biological malignancy, but the biological activity of superficial BSC remains unclear. Twenty cases of superficial BSC, which underwent surgical resection in Tokai University Hospital between January 2004 and December 2013, were analyzed retrospectively. Among these cases, 19 cases with a T1 depth of invasion (BSC group) were compared with 180 cases of SCC that were resected during the same period and were pathologically diagnosed as T1 (SCC group). The frequency of lymph node metastasis in the T1 BSC group was significantly lower (2 patients, 11%) than that in the SCC group (84 patients, 47%) (P = 0.005). The frequency of lymphatic invasion in the BSC group was also lower (9 patients, 47%) than that in the SCC group (131 patients, 73%) (P = 0.021). The pathological type of the metastatic lymph node was BSC in all the superficial BSC cases with lymph node metastasis. This study demonstrated that lymph node metastasis was less likely to occur in cases with superficial BSC than in cases with superficial SCC.
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Affiliation(s)
- J Oguma
- Departments of Gastroenterological Surgery
| | - S Ozawa
- Departments of Gastroenterological Surgery
| | - A Kazuno
- Departments of Gastroenterological Surgery
| | - M Nitta
- Departments of Gastroenterological Surgery
| | - Y Ninomiya
- Departments of Gastroenterological Surgery
| | - S Tomita
- Pathology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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22
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Goto W, Kashiwagi S, Asano Y, Takada K, Takahashi K, Noda S, Takashima T, Onoda N, Tomita S, Hirakawa K, Ohira M. Predictive value of the improvement in tumor microenvironment for progression in breast cancer patients treated with neoadjuvant chemotherapy. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Sirota I, Tomita S, Borovich A. Intrauterine Device Removal in Early Pregnancy via “See and Treat” Hysteroscopy. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.249] [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: 11/27/2022]
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24
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Park K, Oeda T, Umemura A, Kohsaka M, Tomita S, Sugiyama H, Sawada H. Homeostasis in lipid metabolism is impaired in Parkinson's disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2040] [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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25
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Umemura A, Oeda T, Yamamoto K, Kohsaka M, Tomita S, Park K, Sugiyama H, Sawada H. Dementia in Parkinson’s disease is associated with the lateral cholinergic pathway. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2954] [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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26
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Kitami Y, Mori T, Hayakawa I, Koide A, Ito A, Suzuki H, Tomita S, Warabi Y, Takahashi T, Miyama S. Neuromyelitis optica spectrum disorder (NMOSD) seropositive for AQP4-IGG more than 3 years before NMOSD onset. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3226] [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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27
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Ohara H, Park K, Kosaka M, Umemura A, Tomita S, Tahara M, Yamamoto K, Oeda T, Sugiyama H, Sawada H. Cerebral infarctions with hypereosinophilic syndrome: A report of two cases. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1800] [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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28
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Khan H, Boyden L, Tomita S, Choate K. 463 GJA1 mutations causing erythrokeratodermia variabilis et progressiva display increased connexin hemichannel activity. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.482] [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: 11/16/2022]
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29
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Tsounapi P, Honda M, Dimitriadis F, Shimizu S, Shiomi T, Hikita K, Saito M, Tomita S, Sofikitis N, Takenaka A. Antioxidant treatment ameliorates diabetes-induced dysfunction of the vas deferens in a rat model. Andrologia 2017; 50. [PMID: 28224697 DOI: 10.1111/and.12795] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2016] [Indexed: 12/20/2022] Open
Abstract
Diabetes mellitus (DM) affects the male ejaculatory function. This study was designed to evaluate the role of oxidative stress in the development of diabetes-induced dysfunction of vas deferens (VD) in the rat. DM was induced by streptozotocin in 40 male Wistar rats. Subsequently, the diabetic animals were divided into three groups: DM group, DM + Eda group and DM + Tau group. These groups were administered saline, edaravone and taurine, respectively, daily for 4 weeks. Another group of ten rats served as a control group. DM was diagnosed in the 40 streptozotocin-injected rats. DM significantly reduced the VD weight. Additionally, DM induced in vitro VD hypercontractility, VD histological abnormalities and increased the serum and VD tissue concentration of malondialdehyde. VD immunohistochemistry revealed overexpression of three markers of oxidative stress. DM significantly reduced serum testosterone levels. No live birth was documented in all DM rats in mating experiments. Antioxidants significantly improved all the aforementioned parameters, except the testosterone levels. This study indicates a deleterious impact of DM-induced oxidative stress on VD histological and functional features. Antioxidant treatment may provide an adjunct tool to alleviate ejaculatory disorders for male patients with type 1 diabetes.
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Affiliation(s)
- P Tsounapi
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
| | - M Honda
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
| | - F Dimitriadis
- Department of Urology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - S Shimizu
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - T Shiomi
- Division of Organ Pathology, Department of Pathology, Faculty of Medicine, Tottori University, Yonago, Japan
| | - K Hikita
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
| | - M Saito
- Department of Pharmacology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan
| | - S Tomita
- Department of Pharmacology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - N Sofikitis
- Department of Urology, School of Medicine, University of Ioannina, Ioannina, Greece
| | - A Takenaka
- Division of Urology, Department of Surgery, Faculty of Medicine, Tottori University, Yonago, Japan
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Chumsri S, Lee MJ, Tomita Y, Lee S, Tomita S, Cruickshank S, Ordentlich P, Trepel JB. Abstract P2-11-10: Epigenetic immune modulation by entinostat in breast cancer: Correlative analysis of ENCORE 301 trial. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-11-10] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Entinostat, a class I HDAC inhibitor (HDACi), has shown promising activity in ENCORE 301, a randomized, placebo-controlled, phase II trial of entinostat + exemestane (EE) vs. exemestane + placebo (EP) in advanced hormone receptor-positive breast cancer progressed on nonsteroidal aromatase inhibitors. ENCORE 301 met the primary progression free survival endpoint and showed a median 8.3-month improvement in the overall survival (OS) exploratory endpoint for the EE arm. Emerging preclinical work suggests that entinostat has immunomodulatory effects and can eradicate modestly immunogenic mouse tumors in combination with immune checkpoint blockade agents via reduction of circulating myeloid-derived suppressor cells (MDSC). Based on these data, we conducted an analysis of immune subsets in blood samples from ENCORE 301 breast cancer patients.
Method: Blood was collected from a subset of 49 patients (27 EE and 22 EP) representative of the 130 patients enrolled in ENCORE 301 on cycle 1 day 1 (C1D1; pre-treatment), C1D2, C1D8, and C1D15 for biomarker analysis. Of these, 34 patient samples (20 EE and 14 EP) were analyzed for circulating immune subsets. The percent change in subsets at C1D15 vs. baseline was assessed based on the following surface markers: Lin-MDSC (lin; CD3, CD19, CD56)-HLA-DR-CD11b+CD33+), granulocytic MDSC (CD14-CD11b+CD33+), monocytic MDSC (Lin-HLA-DR-CD11b+CD33+CD14+), immature MDSC (Lin-HLA-DR-CD11b+CD33+CD14-), CD8+ T-cells (CD4-CD8+), Foxp3-CD4+ T-cells (CD8-CD4+Foxp3-), and Tregs (CD4+CD8-CD25hiFoxp3+). Monocytes were analyzed for three populations: CD14+, CD14+HLA-DRhi, and CD14+HLA-DRlow/negative. In addition, PD-1, CTLA-4, and TIM-3 were measured on T-cell subsets, and CD40 was measured on MDSCs.
Results: In line with preclinical data, we observed a significant reduction in granulocytic MDSC (-14.67% vs. +20.56%, p 0.029) and monocytic MDSC (-62.3% vs. +1.97%, p 0.002) in EE. Entinostat did not alter immature MDSC levels (-20.9% vs. -15.0%, p 0.93) suggesting a downstream effect of entinostat on MDSC subsets. Interestingly, CD40, a costimulatory receptor required for MDSC-mediated immune suppression was significantly down-regulated in all MDSC subsets except granulocytic MDSC where a downward trend was observed. Entinostat did not significantly impact the ratio of CD8+ T-cells per CD4+ T-cells or per Tregs or alter expression of CTLA4, PD-1, or TIM3 on T-cell subsets. Reduced expression of HLA-DR on monocytes has been associated with poor prognosis in cancer. Consistent with entinostat-mediated immunomodulatory effects, a significant increase in the number of HLA-DR+ monocytes (34.1% vs. -11.38%, p 0.0004) and level of HLA-DR expression on monocytes (16.3% vs. -4.7%; p 0.015) was observed.
Conclusion: Data with entinostat combined with exemestane in ENCORE 301 provide the first evidence of HDACi-mediated reduction of immunosuppressive MDSCs and increased immunocompetent CD14+HLA-DRhi monocytes in patients. These findings may explain the improved OS seen with EE in ENCORE 301 and provide strong rationale for planned combination studies of entinostat with immune checkpoint blockade agents.
Citation Format: Chumsri S, Lee M-J, Tomita Y, Lee S, Tomita S, Cruickshank S, Ordentlich P, Trepel JB. Epigenetic immune modulation by entinostat in breast cancer: Correlative analysis of ENCORE 301 trial. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-11-10.
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Affiliation(s)
- S Chumsri
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - M-J Lee
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - Y Tomita
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - S Lee
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - S Tomita
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - S Cruickshank
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - P Ordentlich
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
| | - JB Trepel
- Mayo Clinic, Jacksonville, FL; National Cancer Institute, Bethesda, MD; Syndax Pharmaceuticals, Inc., Waltham, MA
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Fujiwara S, Saitoh N, Tomita S, Abdalla MO, Iwase H, Nakao M. Abstract P3-05-10: Non-coding RNAs derived from near the ESR1 gene acts as a transcriptional regulator during estrogen deprivation adaptation of ER positive breast cancer cells. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-05-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Endocrine therapies that blocks estrogen production are effective for estrogen receptor (ER)-positive breast cancer. However, endocrine therapy treated patients eventually experience relapse after a long period of estrogen deprivation. The mechanism underlying acquisition of estrogen independent growth by ER positive breast cancer cells remains unclear.
To understand such molecular mechanism, we used a cell model LTED (long term estrogen deprivation) which MCF7 cells were cultured under estrogen deprivation for 4-10 months. In LTED cells, we found that ER encoded gene ESR1 was up-regulated and ER overproduction was essential for estrogen-independent cell growth. We also revealed that RNA transcriptions of the ESR1 and several neighbor genes were co-induced from both coding and non-coding regions in LTED cells, using RNA-sequence. These highly transcribed regions were corresponded to active histone modifications and transcription factor bindings according to publically available genome-wide analyses data. Fluorescence in situ hybridization (FISH) analyses indicated that RNA from the chromatin domain region nearby ESR1 were co-localized and made foci in nucleus.
We found non-coding regions that are particularly highly transcribed. FISH analyses indicated that RNAs from these regions might interact with the parental ESR1 gene locus. Recent studies have shown that non-coding RNAs are involved in transcriptional regulation and chromatin regulation. To understand the role of the non-coding RNA, we have generated MCF7 cells lines that lack the non-coding site, using CRISPR/CAS9 system. We found that mRNA transcription of multiple genes including ESR1 were impaired by the deletion. These findings suggested that these non-coding RNAs may be involved in chromatin regulation of the chromatin domain nearby ESR1.
In this study, we found non-coding RNAs that control transcription of chromatin domain genes in ER positive breast cancer cells. Such non-coding RNA mediated transcriptional regulation might be critical for endocrine therapy resistance adaptation.
Citation Format: Fujiwara S, Saitoh N, Tomita S, Abdalla MO, Iwase H, Nakao M. Non-coding RNAs derived from near the ESR1 gene acts as a transcriptional regulator during estrogen deprivation adaptation of ER positive breast cancer cells. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-05-10.
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Affiliation(s)
- S Fujiwara
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - N Saitoh
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - S Tomita
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - MO Abdalla
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - H Iwase
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - M Nakao
- Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
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Tsounapi P, Honda M, Dimitriadis F, Shimizu S, Hikita K, Muraoka K, Sejima T, Saito M, Tomita S, Sofikitis N, Takenaka A. Post-fertilization effect of bilateral primary testicular damage induced by unilateral cryptorchidism in the rat model. Andrology 2016; 4:297-305. [DOI: 10.1111/andr.12154] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 11/27/2015] [Accepted: 11/30/2015] [Indexed: 01/16/2023]
Affiliation(s)
- P. Tsounapi
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - M. Honda
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - F. Dimitriadis
- Department of Urology; School of Medicine; University of Ioannina; Ioannina Greece
| | - S. Shimizu
- Department of Pharmacology; Kochi Medical School; Kochi University; Nankoku Kochi Japan
| | - K. Hikita
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - K. Muraoka
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - T. Sejima
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
| | - M. Saito
- Department of Pharmacology; Kochi Medical School; Kochi University; Nankoku Kochi Japan
| | - S. Tomita
- Division of Molecular Pharmacology; Department of Pathophysiological and Therapeutic Science; Tottori University School of Medicine; Yonago Japan
| | - N. Sofikitis
- Department of Urology; School of Medicine; University of Ioannina; Ioannina Greece
| | - A. Takenaka
- Division of Urology; Department of Surgery; Tottori University School of Medicine; Yonago Japan
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Tomita S, Terao Y, Hatano T, Nishimura R. Subtotal glossectomy preserving half the tongue base prevents taste disorder in patients with tongue cancer. Int J Oral Maxillofac Surg 2014; 43:1042-6. [DOI: 10.1016/j.ijom.2014.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 01/06/2014] [Accepted: 02/17/2014] [Indexed: 11/27/2022]
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Kakimoto N, Shimamoto H, Chindasombatjaroen J, Tsujimoto T, Tomita S, Hasegawa Y, Murakami S, Furukawa S. Comparison of the T2 relaxation time of the temporomandibular joint articular disk between patients with temporomandibular disorders and asymptomatic volunteers. AJNR Am J Neuroradiol 2014; 35:1412-7. [PMID: 24742804 DOI: 10.3174/ajnr.a3880] [Citation(s) in RCA: 6] [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] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE T2 relaxation time is a quantitative MR imaging parameter used to detect degenerated cartilage in the knee and lumbar intervertebral disks. We measured the T2 relaxation time of the articular disk of the temporomandibular joint in patients with temporomandibular disorders and asymptomatic volunteers to demonstrate an association between T2 relaxation time and temporomandibular disorder MR imaging findings. MATERIALS AND METHODS One hundred forty-four patients with temporomandibular disorders and 17 volunteers were enrolled in this study. An 8-echo spin-echo sequence for measuring the T2 relaxation times was performed in the closed mouth position, and the T2 relaxation time of the entire articular disk was measured. Patients were classified according to the articular disk location and function, articular disk configuration, presence of joint effusion, osteoarthritis, and bone marrow abnormalities. RESULTS The T2 relaxation time of the entire articular disk was 29.3 ± 3.8 ms in the volunteer group and 30.7 ± 5.1 ms in the patient group (P = .177). When subgroups were analyzed, however, the T2 relaxation times of the entire articular disk in the anterior disk displacement without reduction group, the marked or extensive joint effusion group, the osteoarthritis-positive group, and the bone marrow abnormality-positive group were significantly longer than those in the volunteer group (P < .05). CONCLUSIONS The T2 relaxation times of the articular disk of the temporomandibular joint in patients with progressive temporomandibular disorders were longer than those of healthy volunteers.
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Affiliation(s)
- N Kakimoto
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - H Shimamoto
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - J Chindasombatjaroen
- Department of Oral and Maxillofacial Radiology (J.C.), Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | - T Tsujimoto
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Tomita
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - Y Hasegawa
- Department of Dentistry and Oral Surgery (Y.H.), Hyogo College of Medicine, Hyogo, Japan
| | - S Murakami
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Furukawa
- From the Department of Oral and Maxillofacial Radiology (N.K., H.S., T.T., S.T., S.M., S.F.), Osaka University Graduate School of Dentistry, Osaka, Japan
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Umehara S, Kishimoto T, Nomachi M, Ajimura S, Nakatani N, Matsuoka K, Ichimura K, Saka M, Ishikawa T, Tanaka D, Tanaka M, Yoshida S, Suzuki K, Ito G, Kakubata H, Wang W, Takemoto J, Chan WM, Doihara M, Tamagawa Y, Ogawa I, Ueno T, Maeda S, Yamamoto A, Tomita S, Fujita G, Kawamura A, Harada T, Fushimi K, Hazama R, Ohsumi H, Okada K. CANDLES. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146608008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Shimizu S, Oikawa R, Tsounapi P, Inoue K, Shimizu T, Tanaka K, Martin DT, Honda M, Sejima T, Tomita S, Saito M. Blocking of the ATP sensitive potassium channel ameliorates the ischaemia-reperfusion injury in the rat testis. Andrology 2014; 2:458-65. [PMID: 24604784 DOI: 10.1111/j.2047-2927.2014.00199.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 10/17/2013] [Revised: 01/21/2014] [Accepted: 02/01/2014] [Indexed: 12/17/2022]
Abstract
There is increasing evidence that the effects of administered ATP sensitive potassium (KATP ) channel openers or blockers during ischaemia are still controversial in many organs/tissues. Testicular torsion detorsion which causes ischaemia-reperfusion (IR) injury, cannot be predicted, thus an effective drug should be administered during or after the ischaemia. The aim of this study was to examine whether the administration of KATP channel openers or blockers during ischaemia ameliorates IR injury in the testis. Eight-week-old male Sprague-Dawley rats were subjected to 2 h right testicular ischaemia followed by 24 h reperfusion. The selective mitochondrial (mito) KATP channel blocker, 5-hydroxydecanoate (5-HD) (40 mg/kg), the non-selective KATP channel blocker glibenclamide (5 mg/kg), the selective mito KATP channel opener diazoxide (10 mg/kg) and the non-selective KATP channel opener cromakalim (300 μg/kg) were administered intraperitoneally 15 min prior to the ischaemia or 75 min after the induction of ischaemia. Tissue damage was evaluated by malondialdehyde concentration, myeloperoxidase activity, histological evaluation and TdT-mediated dUTP nick end labelling assay in the testis. There was a significant increase in oxidative stress, neutrophil infiltration, histological damage and apoptosis in the testicular IR model. A significant reduction in the testicular IR injury was observed with the administration of glibenclamide, but not 5-HD, diazoxide or cromakalim during ischaemia. The administration of non-selective KATP channel blocker glibenclamide ameliorated the testicular IR injury. On the other hand, the selective mito KATP channel blocker, 5-HD and KATP channel openers did not reduce the testicular IR injury. These data suggest that blocking of the membrane KATP channel may have a protective effect during the testicular ischaemia. Glibenclamide could be an effective drug to manage the post-ischaemic injury caused by the testicular torsion-detorsion.
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Affiliation(s)
- S Shimizu
- Division of Molecular Pharmacology, Tottori University School of Medicine, Yonago, Japan
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Felix F, Zallis MG, Tomita S, Baptista MM, Ribeiro MG. Evaluation of the presence of the 35delG mutation in patients with severe to profound hearing loss based on ethnicity. Rev Laryngol Otol Rhinol (Bord) 2014; 135:171-174. [PMID: 26521363] [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
INTRODUCTION The 35delG mutation in the connexin 26 gene is the most common mutation that generates deafness, but its frequency in different countries is strongly based on its ethnicity. Brazilians belong to different ethnic groups. OBJECTIVES To report the frequency of homo and heterozygosis 35delG mutation in a population with severe to profound bilateral sensorineural deafness, and separate them by ethnicity. METHODS 100 individuals were studied with severe to profound hearing loss, with no other etiology found, and tested for 35delG mutation. The group presented the following ethnicity distribution: 25% Blacks; 30% Latin Europeans; 26.2% Blacks/Latin Europeans and 2.3% native. RESULTS The 35delG mutation was found in 20% of patients: 15% were heterozygous and 5% homozygous. All homozygous were of Latin European origin. CONCLUSION Ethnicity shows marked determination of the presence of the 35delG mutation, and it was only found in homozygosis in the group of Latin Europeans.
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Yamaguchi T, Ichikawa K, Sano Y, Sano W, Ikumoto T, Iwatate M, Tomita S, Kato H, Fujimori T. Education and Imaging. Gastrointestinal: sessile serrated adenoma/polyps with a minute T1 colorectal carcinoma. J Gastroenterol Hepatol 2014; 29:1. [PMID: 24354988 DOI: 10.1111/jgh.12465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- T Yamaguchi
- Department of Surgery 1, Dokkyo Medical University, Shimotsuga, Tochigi, Japan; Department of Surgical and Molecular Pathology, Dokkyo Medical University, Shimotsuga, Tochigi, Japan
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Tomita S, Terao Y, Hatano T. Evaluation of taste sensation after subtotal glossectomy. Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2013.07.429] [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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Abstract
We performed a randomised, crossover study to investigate the effects of intravenous sedation on grip strength and bite force. Twenty male volunteers received a bolus intravenous injection of midazolam (0.02 mg.kg(-1)) together with a 30-min propofol infusion designed to achieve an effect-site concentration of 1.0 μg.ml(-1). Observed variables included bispectral index, observer's assessment of alertness/sedation, correct answer rate of Stroop colour-word test, grip strength and bite force. Grip strength decreased from a median (IQR [range]) of 483 (443-517 [380-586]) N to 358 (280-405 [108-580]) N (p < 0.001) during sedation and recovered following flumazenil administration, while bite force increased from 818 (593-1026 [405-1406]) N to 1377 (1243-1585 [836-2357]) N (p < 0.001) during sedation. Although bite force gradually returned to baseline following flumazenil administration, it remained increased throughout the experimental period. We conclude that bite force increased during intravenous sedation and that this may have clinical implications.
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Affiliation(s)
- S Tomita
- Department of Dental Anesthesiology, Tokyo Dental College, Chiba, Japan
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Iwase H, Yamamoto Y, Murakami KI, Yamamoto-Ibusuki M, Tomita S, Omoto Y. Abstract P2-14-03: “Ethinylestradiol” is beneficial for postmenopausal advanced breast cancer patients heavily pre-treated with endocrine agents. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p2-14-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose and Methods: Estrogen deprivation therapy using aromatase inhibitors is a standard therapy in postmenopausal hormone-dependent breast cancer. Paradoxically, low-dose estradiol was reported to be beneficial for the postmenopausal patients who have been heavily pre-treated with long-term sequential anti-estrogen therapies. To determine efficacy and safety of ethinylestradiol (3mg/day oral), a phase 2 study has been performed for the postmenopausal patients with advanced or recurrent breast cancer who became resistant to sequential endocrine treatments. The primary endpoint was clinical benefit rate, secondary were safety, objective response rate and time to progression. The interim data will be reported because of the extremely beneficial results.
Results: Eighteen cases with ER-positive tumor which showed resistance to previous sequential-endocrine therapies including SERMs and/or aromatase inhibitors were registered from Oct 2010 to May 2012. Their mean age was 62 years-old and the mean observation time was 9.2 months. Nine cases were evaluated as partial response, 1 case as long NC, 3 cases as stable disease, and another 2 cases as progressive disease. In three cases of all 18 cases, the estradiol administration was withdrawn within 1 week with their early endocrine-related symptoms, such as nausea, general fatigue and fever. Duration of effect in the case of the PR (including the 4 ongoing cases) was more than 24 weeks. All of 9 responders had high ER expression in the primary or metastatic tumor and had a history of long-term endocrine therapies in metastatic setting and had response to previous endocrine therapies. Serum estradiol levels elevated as 30–100pg/mL, and FSH was suppressed below premenopausal levels in 4 weeks later administration. Although the weight gain, irregular vaginal bleeding, or endometrial thickening was observed in patients treated with long-term treatment, there was no severe adverse event, such as deep venous thrombosis or other malignancies in this series.
Discussion: The mechanism of low-dose estrogen treatment can be considered the estrogen-induced apoptosis. The high ER expression and the response to previous endocrine therapies might be recognized as predictive factor of this treatment. This low-dose estrogen therapy may contribute to overturn the common sense of the endocrine therapy for breast cancer.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P2-14-03.
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Affiliation(s)
- H Iwase
- Kumamoto University, Kumamoto, Japan
| | | | | | | | - S Tomita
- Kumamoto University, Kumamoto, Japan
| | - Y Omoto
- Kumamoto University, Kumamoto, Japan
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Yoshioka N, Arakawa A, Tomita S, Nishikawa H. Selective Orbicularis Neuromyectomy for Postparetic Facial Synkinesis. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314313] [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: 10/28/2022]
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Yashiki N, Saito H, Oshima M, Tomita S, Watanabe G. [The problem of cardiac surgery with neoplasm]. Kyobu Geka 2012; 65:397-400. [PMID: 22569499] [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: 05/31/2023]
Abstract
Neoplasm and cardiac diseases are rarely found at the same time. If the standard treatment for both of these diseases is operation, several problems arise;1 stage or 2 stage operation, which operation should be done 1st etc. Especially, if cardiac operation needs cardiopulmonary bypass, neoplasm may grow faster. In such cases, we must decide operative procedure carefully.
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Affiliation(s)
- N Yashiki
- Department of Thoracic Surgery, Koseiren Takaoka Hospital, Japan
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Tomita S, Ozawa H. [From a viewpoint of the medical cooperation]. No To Hattatsu 2012; 44:193-198. [PMID: 22712218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Saito D, Yashiki N, Tomita S, Watanabe G. [One-stage coronary artery bypass grafting and revascularization in a patient with ischemic heart disease and arteriosclerosis obliterans]. Kyobu Geka 2011; 64:383-386. [PMID: 21591439] [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
With the overall increase in ischemic heart disease (IHD), cases combining arteriosclerosis obliterans (ASO) of the lower extremities and IHD are on the rise. Therefore, it is necessary to consider methods and timing of operation. These cases have occasionally large collateral pathways from the internal thoracic artery (ITA) to the femoral artery via the epigastric artery. To prevent irreversible ischemia of the lower limbs after harvesting of ITA, we planned to perform a one-stage operation for ASO-combined IHD. Revascularization of the lower extremities was performed 1st. Subsequently coronary artery bypass grafting with ITA was completed. The operative courses were uneventful.
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Affiliation(s)
- D Saito
- Department of General and Cardiothoracic Surgery, Kanazawa University, Kanazawa, Japan
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Ohtake H, Kimura K, Tomita S, Yamaguchi S, Sanada J, Matsui O, Watanabe G. Neurological deficit after simultaneous open abdominal aortic surgery and thoracic aortic endovascular therapy. INT ANGIOL 2011; 30:88-91. [PMID: 21248678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We examined a total of 12 cases; 8 cases were identified by searching the literature on Pubmed (excluding case reports published prior to 2000) and 4 cases were ones we personally encountered. We examined age, sex, history of smoking, and preoperative risk factors as preoperative factors, the access route and coverage of the descending aorta as perioperative factors, and complications and survival time as postoperative factors. Mean coverage of the thoracic aorta was 90.8 mm. In terms of perioperative deaths, 8.3% (1 patient) were due to coagulopathy. Perioperative complications occurred in 16.7% of cases (coagulopathy in 1 patient and paralysis in another). No patients experienced complications or underwent additional treatment during a mean follow-up of 22.9 months. This study suggested that simultaneous open abdominal aortic repair and thoracic aortic endovascular therapy is feasible and also involves few postoperative complications. Paraplegia and paralysis tended to occur less frequently than with two-stage surgery, but further study is needed to explain why this is true.
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Affiliation(s)
- H Ohtake
- Department of General and Cardiothoracic Surgery, Kanazawa University, Japan.
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Zettergren H, Johansson HAB, Schmidt HT, Jensen J, Hvelplund P, Tomita S, Wang Y, Martín F, Alcamí M, Manil B, Maunoury L, Huber BA, Cederquist H. Magic and hot giant fullerenes formed inside ion irradiated weakly bound C60 clusters. J Chem Phys 2010; 133:104301. [DOI: 10.1063/1.3479584] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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Ohtake H, Kimura K, Kato H, Yamaguchi S, Tomita S, Watanabe G. Effectiveness of a temporary bypass in high-risk abdominal aortic aneurysm surgery. J Cardiovasc Surg (Torino) 2009; 50:819-820. [PMID: 19935616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Abe F, Tomita S, Yaeshima T, Iwatsuki K. Effect of production conditions on the stability of a human bifidobacterial speciesBifidobacterium longumin yogurt. Lett Appl Microbiol 2009; 49:715-20. [DOI: 10.1111/j.1472-765x.2009.02719.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kadhane U, Andersen JU, Bonderup E, Concina B, Hvelplund P, Suhr Kirketerp MB, Liu B, Nielsen SB, Panja S, Rangama J, Støchkel K, Tomita S, Zettergren H, Hansen K, Sundén AEK, Canton SE, Echt O, Forster JS. Near-infrared photoabsorption by C60 dianions in a storage ring. J Chem Phys 2009; 131:014301. [PMID: 19586099 DOI: 10.1063/1.3149775] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
We present a detailed study of the electronic structure and the stability of C(60) dianions in the gas phase. Monoanions were extracted from a plasma source and converted to dianions by electron transfer in a Na vapor cell. The dianions were then stored in an electrostatic ring, and their near-infrared absorption spectrum was measured by observation of laser induced electron detachment. From the time dependence of the detachment after photon absorption, we conclude that the reaction has contributions from both direct electron tunneling to the continuum and vibrationally assisted tunneling after internal conversion. This implies that the height of the Coulomb barrier confining the attached electrons is at least approximately 1.5 eV. For C(60)(2-) ions in solution electron spin resonance measurements have indicated a singlet ground state, and from the similarity of the absorption spectra we conclude that also the ground state of isolated C(60)(2-) ions is singlet. The observed spectrum corresponds to an electronic transition from a t(1u) lowest unoccupied molecular orbital (LUMO) of C(60) to the t(1g) LUMO+1 level. The electronic levels of the dianion are split due to Jahn-Teller coupling to quadrupole deformations of the molecule, and a main absorption band at 10,723 cm(-1) corresponds to a transition between the Jahn-Teller ground states. Also transitions from pseudorotational states with 200 cm(-1) and (probably) 420 cm(-1) excitation are observed. We argue that a very broad absorption band from about 11,500 cm(-1) to 13,500 cm(-1) consists of transitions to so-called cone states, which are Jahn-Teller states on a higher potential-energy surface, stabilized by a pseudorotational angular momentum barrier. A previously observed, high-lying absorption band for C(60)(-) may also be a transition to a cone state.
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Affiliation(s)
- U Kadhane
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
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