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Ikemoto S, Sakurai F, Tokuoka S, Yamashita T, Takayama K, Hoshi K, Okabe T, Sumiyoshi I, Togo S, Takahashi K, Tachibana M, Mizuguchi H. Novel conditionally replicating adenovirus-mediated efficient detection of circulating tumor cells in lung cancer patients. PLoS One 2023; 18:e0286323. [PMID: 37856461 PMCID: PMC10586684 DOI: 10.1371/journal.pone.0286323] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/15/2023] [Indexed: 10/21/2023] Open
Abstract
Circulating tumor cells (CTCs) are present in the blood of cancer patients from the early stage of cancer development, and their presence has been correlated with patient prognosis and treatment responses. Accordingly, CTCs have been attracting attention as a novel biomarker for early detection of cancer and monitoring of treatment responses. However, since patients typically have only a few CTCs per milliliter of blood, development of an accurate and highly sensitive CTC detection method is crucial. We previously developed a CTC detection method using a novel conditionally replicating adenovirus (Ad) that expresses green fluorescence protein (GFP) in a tumor cell-specific manner by expressing the E1 gene using a tumor-specific human telomerase reverse transcriptase (hTERT) promoter (rAdF35-142T-GFP). CTCs were efficiently detected using rAdF35-142T-GFP, but GFP expression levels in the CTCs and production efficiencies of rAdF35-142T-GFP were relatively low. In this study, in order to overcome these problems, we developed four types of novel GFP-expressing conditionally replicating Ads and examined their ability to visualize CTCs in the blood samples of lung cancer patients. Among the four types of novel recombinant Ads, the novel conditionally replicating Ad containing the 2A peptide and the GFP gene downstream of the E1A gene and the adenovirus death protein (ADP) gene in the E3 region (rAdF35-E1-2A-GFP-ADP) mediated the highest number of GFP-positive cells in the human cultured tumor cell lines. Titers of rAdF35-E1-2A-GFP-ADP were significantly higher (about 4-fold) than those of rAdF35-142T-GFP. rAdF35-E1-2A-GFP-ADP and rAdF35-142T-GFP efficiently detected CTCs in the blood of lung cancer patients at similar levels. GFP+/CD45- cells (CTCs) were found in 10 of 17 patients (58.8%) for both types of recombinant Ads.
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Affiliation(s)
- Sena Ikemoto
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Fuminori Sakurai
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Sora Tokuoka
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Tomoki Yamashita
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Kosuke Takayama
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Kazuaki Hoshi
- Department of Minimally Invasive Next-generation Cancer Diagnosis by TelomeScan, Tokyo, Japan
- Leading Center for the Development and Research of Cancer Medicine, Juntendo University, Tokyo, Japan
| | - Takahiro Okabe
- Leading Center for the Development and Research of Cancer Medicine, Juntendo University, Tokyo, Japan
| | - Issei Sumiyoshi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Shinsaku Togo
- Department of Minimally Invasive Next-generation Cancer Diagnosis by TelomeScan, Tokyo, Japan
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Kazuhisa Takahashi
- Department of Minimally Invasive Next-generation Cancer Diagnosis by TelomeScan, Tokyo, Japan
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Masashi Tachibana
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
- The Center for Advanced Medical Engineering and Informatics, Osaka University, Osaka, Japan
| | - Hiroyuki Mizuguchi
- Laboratory of Biochemistry and Molecular Biology, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
- The Center for Advanced Medical Engineering and Informatics, Osaka University, Osaka, Japan
- Center for Infectious Disease Education and Research (CiDER), Osaka University, Osaka, Japan
- Laboratory of Functional Organoid for Drug Discovery, Center for Drug Discovery Resources Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka, Japan
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Brownstein J, Scarfone S, Miller E, Thomas E, Weldon M, Okabe T, Williams T, Afzal M. A Single Institution's Experience with Cardiac Radioablation Utilizing the 17-Segment Model for Target Localization. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1604] [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: 10/31/2022]
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Hazama D, Uemura T, Kenmotsu H, Meano K, Wakuda K, Teraoka S, Kobe H, Azuma K, Yamaguchi T, Masuda T, Yokoyama T, Otsubo K, Haratani K, Hayakawa D, Oki M, Takemoto S, Ozaki T, Okabe T, Hata A, Hashimoto H, Yamamoto N, Nakagawa K. EP16.02-005 Liquid Biopsy Detects Genomic Drivers in Non-small Cell Lung Cancer without EGFR Mutations by Single-plex Testing: WJOG13620L. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1036] [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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Iwai M, Tulafu M, Togo S, Kawaji H, Kadoya K, Namba Y, Jin J, Watanabe J, Okabe T, Hidayat M, Sumiyoshi I, Itoh M, Koyama Y, Ito Y, Orimo A, Takamochi K, Oh S, Suzuki K, Hayashizaki Y, Yoshida K, Takahashi K. Cancer-associated fibroblast migration in non-small cell lung cancers is modulated by increased integrin α11 expression. Mol Oncol 2021; 15:1507-1527. [PMID: 33682233 PMCID: PMC8096795 DOI: 10.1002/1878-0261.12937] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/04/2021] [Indexed: 12/13/2022] Open
Abstract
Cancer‐associated fibroblasts (CAFs) regulate cancer progression through the modulation of extracellular matrix (ECM) and cancer cell adhesion. While undergoing a series of phenotypic changes, CAFs control cancer–stroma interactions through integrin receptor signaling. Here, we isolated CAFs from patients with non‐small‐cell lung cancer (NSCLC) and examined their gene expression profiles. We identified collagen type XI α1 (COL11A1), integrin α11 (ITGA11), and the ITGA11 major ligand collagen type I α1 (COL1A1) among the 390 genes that were significantly enriched in NSCLC‐associated CAFs. Increased ITGA11 expression in cancer stroma was correlated with a poor clinical outcome in patients with NSCLC. Increased expression of fibronectin and collagen type I induced ITGA11 expression in CAFs. The cellular migration of CAFs toward collagen type I and fibronectin was promoted via ERK1/2 signaling, independently of the fibronectin receptor integrin α5β1. Additionally, ERK1/2 signaling induced ITGA11 and COL11A1 expression in cancer stroma. We, therefore, propose that targeting ITGA11 and COL11A1 expressing CAFs to block cancer–stroma interactions may serve as a novel, promising anti‐tumor strategy.
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Affiliation(s)
- Moe Iwai
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Miniwan Tulafu
- Leading Center for the Development and Research of Cancer Medicine, Juntendo University, Tokyo, Japan
| | - Shinsaku Togo
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Hideya Kawaji
- Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Japan.,Preventive Medicine and Applied Genomics Unit, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan.,RIKEN Preventive Medicine and Diagnosis Innovation Program, Saitama, Japan
| | - Kotaro Kadoya
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Yukiko Namba
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Jin Jin
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Department of Respiratory and Critical Care Medicine, National Center of Gerontology, Beijing Hospital, China
| | - Junko Watanabe
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Takahiro Okabe
- Leading Center for the Development and Research of Cancer Medicine, Juntendo University, Tokyo, Japan
| | - Moulid Hidayat
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Department of Pulmonology and Respiratory Medicine, Universitas Indonesia Faculty of Medicine, Jakarta, Indonesia
| | - Issei Sumiyoshi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Masayoshi Itoh
- RIKEN Preventive Medicine and Diagnosis Innovation Program, Saitama, Japan
| | - Yu Koyama
- Departments of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan.,Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, Japan
| | - Yasuhiko Ito
- Departments of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Akira Orimo
- Departments of Molecular Pathogenesis, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kazuya Takamochi
- Department of General Thoracic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Shiaki Oh
- Department of General Thoracic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | - Kenji Suzuki
- Department of General Thoracic Surgery, Juntendo University School of Medicine, Tokyo, Japan
| | | | - Koji Yoshida
- Faculty of Biology-Oriented Science and Technology, Kindai University, Wakayama, Japan
| | - Kazuhisa Takahashi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
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Sumiyoshi I, Okabe T, Togo S, Takagi H, Motomura H, Ochi Y, Shimada N, Haraguchi M, Shibayama R, Fujimoto Y, Watanabe J, Iwai M, Kadoya K, Iwakami SI, Takahashi K. High lymphocyte population-related predictive factors for a long-term response in non-small cell lung cancer patients treated with pemetrexed: a retrospective observational study. J Transl Med 2021; 19:92. [PMID: 33639962 PMCID: PMC7916269 DOI: 10.1186/s12967-021-02761-1] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/19/2021] [Indexed: 12/12/2022] Open
Abstract
Background Regimens combining pemetrexed (PEM) and immune checkpoint inhibitors (ICIs) targeting programmed cell death-1 (PD-1) or programmed death-ligand 1 (PD-L1) are widely used for the treatment of advanced non-squamous non-small-cell lung cancer (NSq-NSCLC). Recently, PEM was shown to induce immunogenic cell death (ICD) and to enhance immune-regulatory genes. Some patients demonstrate an extremely long-term response to PEM. It is possible that the continued response in these patients is dependent on not only the pharmacological induction of cytotoxic cell death but also antitumor immunity. However, factors that can predict outcomes associated with long-term PEM administration using blood test results have not yet been elucidated. We investigated the clinical characteristics and predictive factors in patients with advanced NSq-NSCLC who underwent long-term PEM maintenance therapy. Methods In total, 504 patients with advanced NSq-NSCLC who received PEM combination therapy/monotherapy (n = 414) or paclitaxel (PTX) combination therapy (n = 90) between January 2010 and November 2019 were recruited; 381 patients were retained for the final analysis. Patients treated with PEM (n = 301) were divided into subgroups according to the total cycles of PEM (≥ 17 [n = 25] for the long-term administration group and ≤ 16 [n = 276] for the intermediate/short-term group) and compared with another population (n = 80) treated with PTX combination regimen. We investigated clinical features and predictive biomarkers, focusing on immune-regulatory factors, absolute lymphocyte count (ALC), neutrophil-to-lymphocyte ratio (NLR), and PD-1 and PD-L1 expression, to predict long-term response to PEM. Results The long-term PEM administration group exhibited a higher ALC and a lower NLR than the shorter-term group did. Both these markers displayed greater association with progression-free survival and overall survival in the PEM combination therapy group than in the PTX combination therapy group. Increased PD-1 lymphocytes were associated with the long-term PEM response group, as PD-L1 expression in tumors was associated with a high incidence of immune-related adverse effects following ICI administration. Conclusions ALC, NLR, and PD-1 expression are PEM-mediated predictive biomarkers that are indirectly related to tumor immunity and can provide useful predictive information on the long-term response to PEM in patients with NSq-NSCLC. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-02761-1.
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Affiliation(s)
- Issei Sumiyoshi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takahiro Okabe
- Leading Center for the Development and Research of Cancer Medicine, Juntendo University, Tokyo, Japan
| | - Shinsaku Togo
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Haruhi Takagi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hiroaki Motomura
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yusuke Ochi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Naoko Shimada
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Mizuki Haraguchi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Rina Shibayama
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yuichi Fujimoto
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Junko Watanabe
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Moe Iwai
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Kotaro Kadoya
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Shin-Ichiro Iwakami
- Division of Respiratory Medicine, Juntendo University Shizuoka Hospital, Shizuoka, Japan
| | - Kazuhisa Takahashi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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Okabe T, Togo S, Fujimoto Y, Watanabe J, Sumiyoshi I, Orimo A, Takahashi K. Mesenchymal Characteristics and Predictive Biomarkers on Circulating Tumor Cells for Therapeutic Strategy. Cancers (Basel) 2020; 12:E3588. [PMID: 33266262 PMCID: PMC7761066 DOI: 10.3390/cancers12123588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 12/22/2022] Open
Abstract
Metastasis-related events are the primary cause of cancer-related deaths, and circulating tumor cells (CTCs) have a pivotal role in metastatic relapse. CTCs include a variety of subtypes with different functional characteristics. Interestingly, the epithelial-mesenchymal transition (EMT) markers expressed in CTCs are strongly associated with poor clinical outcome and related to the acquisition of circulating tumor stem cell (CTSC) features. Recent studies have revealed the existence of CTC clusters, also called circulating tumor microemboli (CTM), which have a high metastatic potential. In this review, we present current opinions regarding the clinical significance of CTCs and CTM with a mesenchymal phenotype as clinical surrogate markers, and we summarize the therapeutic strategy according to phenotype characterization of CTCs in various types of cancers for future precision medicine.
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Affiliation(s)
- Takahiro Okabe
- Leading Center for the Development and Research of Cancer Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan;
| | - Shinsaku Togo
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan; (Y.F.); (J.W.); (I.S.); (K.T.)
- Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Yuichi Fujimoto
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan; (Y.F.); (J.W.); (I.S.); (K.T.)
- Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Junko Watanabe
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan; (Y.F.); (J.W.); (I.S.); (K.T.)
- Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Issei Sumiyoshi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan; (Y.F.); (J.W.); (I.S.); (K.T.)
- Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Akira Orimo
- Departments of Pathology and Oncology, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan;
| | - Kazuhisa Takahashi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan; (Y.F.); (J.W.); (I.S.); (K.T.)
- Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
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Takei S, Ihara H, Togo S, Nakamura A, Fujimoto Y, Watanabe J, Kurokawa K, Shibayama K, Sumiyoshi I, Ochi Y, Iwai M, Okabe T, Chonan M, Misawa S, Ohsaka A, Takahashi K. The synergetic effect of Imipenem-clarithromycin combination in the Mycobacteroides abscessus complex. BMC Microbiol 2020; 20:316. [PMID: 33076820 PMCID: PMC7574464 DOI: 10.1186/s12866-020-02000-5] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 10/09/2020] [Indexed: 12/05/2022] Open
Abstract
Background Nontuberculous mycobacteria (NTM) are ubiquitous organisms and the incidence of NTM infections has been increasing in recent years. Mycobacteroides abscessus (M. abscessus) is one of the most antimicrobial-resistant NTM; however, no reliable antibiotic regimen can be officially advocated. We evaluated the efficacy of clarithromycin in combination with various antimicrobial agents against the M. abscessus complex. Results Twenty-nine clinical strains of M. abscessus were isolated from various clinical samples. Of the isolates, 10 (34.5%) were of M. abscessus subsp. abscessus, 18 (62.1%) of M. abscessus subsp. massiliense, and 1 (3.4%) of M. abscessus subsp. bolletii. MICs of three antimicrobial agents (amikacin, imipenem, and moxifloxacin) were measured with or without clarithromycin. The imipenem-clarithromycin combination significantly reduced MICs compared to clarithromycin and imipenem monotherapies, including against resistant strains. The association between susceptibility of the M. abscessus complex and each combination of agents was significant (p = 0.001). Adjusted residuals indicated that the imipenem-clarithromycin combination had the synergistic effect (adjusted residual = 3.1) and suppressed the antagonistic effect (adjusted residual = − 3.1). In subspecies of M. abscessus complex, the association with susceptibility of M. abscessus subsp. massiliense was similarly statistically significant (p = 0.036: adjusted residuals of synergistic and antagonistic effect respectively: 2.6 and − 2.6). The association with susceptibility of M. abscessus subsp. abscessus also showed a similar trend but did not reach statistical significance. Conclusion Our data suggest that the imipenem-clarithromycin combination could be the recommended therapeutic choice for the treatment of M. abscessus complex owing to its ability to restore antimicrobial susceptibility.
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Affiliation(s)
- Satomi Takei
- Department of Clinical Laboratory, Juntendo University, Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Hiroaki Ihara
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan. .,Koto Hospital, Tokyo, Japan.
| | - Shinsaku Togo
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan. .,Research Institute for Diseases of Old Ages, Juntendo University, Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.
| | - Ayako Nakamura
- Juntendo Tokyo Koto Geriatric Medical Center, Tokyo, Japan
| | - Yuichi Fujimoto
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
| | - Junko Watanabe
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
| | - Kana Kurokawa
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
| | - Kohei Shibayama
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
| | - Issei Sumiyoshi
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
| | - Yusuke Ochi
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
| | - Moe Iwai
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University, Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Takahiro Okabe
- Leading Center for the Development and Research of Cancer Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Masayoshi Chonan
- Department of Clinical Laboratory, Juntendo University, Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Shigeki Misawa
- Department of Clinical Laboratory, Juntendo University, Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Akimichi Ohsaka
- Department of Transfusion Medicine and Stem Cell Regulation, Juntendo University, Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan
| | - Kazuhisa Takahashi
- Department of Respiratory Medicine, Juntendo University, Faculty of Medicine & Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo, 113-8421, Japan
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Matsukawa T, Okabe T, Suzuki E, Sato Y. Hierarchical Gaussian Descriptors with Application to Person Re-Identification. IEEE Trans Pattern Anal Mach Intell 2020; 42:2179-2194. [PMID: 31059427 DOI: 10.1109/tpami.2019.2914686] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Describing the color and textural information of a person image is one of the most crucial aspects of person re-identification (re-id). Although a covariance descriptor has been successfully applied to person re-id, it loses the local structure of a region and mean information of pixel features, both of which tend to be the major discriminative information for person re-id. In this paper, we present novel meta-descriptors based on a hierarchical Gaussian distribution of pixel features, in which both mean and covariance information are included in patch and region level descriptions. More specifically, the region is modeled as a set of multiple Gaussian distributions, each of which represents the appearance of a local patch. The characteristics of the set of Gaussian distributions are again described by another Gaussian distribution. Because the space of Gaussian distribution is not a linear space, we embed the parameters of the distribution into a point of Symmetric Positive Definite (SPD) matrix manifold in both steps. We show, for the first time, that normalizing the scale of the SPD matrix enhances the hierarchical feature representation on this manifold. Additionally, we develop feature norm normalization methods with the ability to alleviate the biased trends that exist on the SPD matrix descriptors. The experimental results conducted on five public datasets indicate the effectiveness of the proposed descriptors and the two types of normalizations.
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Okabe T, Okajima J, Fujimura T, Aiba S, Maruyama S. Numerical Simulation of Effects of Bioheat Transfer Characteristics of Malignant Melanoma on Thermal Conductivity Measurements. Crit Rev Biomed Eng 2020; 48:95-109. [PMID: 33389898 DOI: 10.1615/critrevbiomedeng.2020033900] [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: 11/13/2022]
Abstract
In our previous study, we successfully detected a difference in the effective thermal conductivity between an invasive melanoma lesion and healthy skin, through clinical experiments conducted on melanoma patients. We found that the effective thermal conductivity of the lesions correlated with the tumor thickness, suggesting that it may be correlated with the prognostic risk of melanoma. However, the bioheat transfer mechanisms of the correlation remained unknown. The aim of this study was to numerically investigate the effects of the bioheat transfer characteristics of malignant melanoma on thermal conductivity measurements and explore the cause of the difference in the effective thermal conductivity between lesions and healthy skin. We used two different bioheat transfer models, the Pennes model and local thermal nonequilibrium model, and investigated the cause of the aforementioned differences by varying the bioheat transfer parameters associated with the thermophysical properties and blood flow of a tumor. The calculation results indicated that the contribution of the blood flow can be dominant in a measurement comprising the use of a guard-heated thermistor probe. Therefore, we found that it is necessary to take into consideration the contribution of the convective term to the effective thermal conductivity of the lesion in order to explain the clinical data of a Stage IV invasive melanoma.
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Affiliation(s)
- Takahiro Okabe
- Graduate School of Science and Technology, Hirosaki University, Japan
| | - Junnosuke Okajima
- Institute of Fluid Science, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Taku Fujimura
- Graduate School of Medicine, Tohoku University, Japan
| | - Setsuya Aiba
- Graduate School of Medicine, Tohoku University, Japan
| | - Shigenao Maruyama
- National Institute of Technology, Hachinohe College, Hachinohe, Aomori 039-1192, Japan
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10
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Ogihara K, Kikuchi E, Okabe T, Hattori S, Yamashita R, Yoshimine S, Shirotake S, Matsumoto K, Mizuno R, Hara S, Oyama M, Niwakawa M, Oya M. Neutrophil-to-lymphocyte ratio is a useful biomarker for predicting worse clinical outcome in chemo-resistant urothelial carcinoma patients treated with pembrolizumab. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz425.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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11
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Noguchi E, Akiyama M, Yagami A, Hirota T, Okada Y, Kato Z, Kishikawa R, Fukutomi Y, Hide M, Morita E, Aihara M, Hiragun M, Chinuki Y, Okabe T, Ito A, Adachi A, Fukunaga A, Kubota Y, Aoki T, Aoki Y, Nishioka K, Adachi T, Kanazawa N, Miyazawa H, Sakai H, Kozuka T, Kitamura H, Hashizume H, Kanegane C, Masuda K, Sugiyama K, Tokuda R, Furuta J, Higashimoto I, Kato A, Seishima M, Tajiri A, Tomura A, Taniguchi H, Kojima H, Tanaka H, Sakai A, Morii W, Nakamura M, Kamatani Y, Takahashi A, Kubo M, Tamari M, Saito H, Matsunaga K. HLA-DQ and RBFOX1 as susceptibility genes for an outbreak of hydrolyzed wheat allergy. J Allergy Clin Immunol 2019; 144:1354-1363. [DOI: 10.1016/j.jaci.2019.06.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 05/30/2019] [Accepted: 06/27/2019] [Indexed: 12/28/2022]
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12
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Ota T, Fukui T, Nakahara Y, Takeda T, Uchino J, Mouri T, Kudo K, Nakajima S, Suzumura T, Okabe T, Hayashi H, Miyatake N, Nakano Y, Terashima M, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. P1.04-40 Serum Perforin Levels During the First Cycle of Anti-PD-1 Antibody Therapies in Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Fujimura T, Okabe T, Tanita K, Sato Y, Lyu C, Kambayashi Y, Maruyama S, Aiba S. A novel technique to diagnose non‐melanoma skin cancer by thermal conductivity measurements: Correlations with cancer stromal factors. Exp Dermatol 2019; 28:1029-1035. [DOI: 10.1111/exd.13997] [Citation(s) in RCA: 4] [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: 03/09/2019] [Revised: 06/04/2019] [Accepted: 06/26/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Taku Fujimura
- Graduate School of Medicine Tohoku University Sendai Japan
| | - Takahiro Okabe
- Graduate School of Science and Technology Hirosaki University Hirosaki Japan
| | - Kayo Tanita
- Graduate School of Medicine Tohoku University Sendai Japan
| | - Yota Sato
- Graduate School of Medicine Tohoku University Sendai Japan
| | - Chunbing Lyu
- Graduate School of Medicine Tohoku University Sendai Japan
| | | | | | - Setsuya Aiba
- Graduate School of Medicine Tohoku University Sendai Japan
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14
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Jin J, Togo S, Kadoya K, Tulafu M, Namba Y, Iwai M, Watanabe J, Nagahama K, Okabe T, Hidayat M, Kodama Y, Kitamura H, Ogura T, Kitamura N, Ikeo K, Sasaki S, Tominaga S, Takahashi K. Pirfenidone attenuates lung fibrotic fibroblast responses to transforming growth factor-β1. Respir Res 2019; 20:119. [PMID: 31185973 PMCID: PMC6558902 DOI: 10.1186/s12931-019-1093-z] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [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: 02/27/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pirfenidone, an antifibrotic agent used for the treatment of idiopathic pulmonary fibrosis (IPF), functions by inhibiting myofibroblast differentiation, which is involved in transforming growth factor (TGF)-β1-induced IPF pathogenesis. However, unlike normal lung fibroblasts, the relationship between pirfenidone responses of TGF-β1-induced human fibrotic lung fibroblasts and lung fibrosis has not been elucidated. METHODS The effects of pirfenidone were evaluated in lung fibroblasts isolated from fibrotic human lung tissues after TGF-β1 exposure. The ability of two new pharmacological targets of pirfenidone, collagen triple helix repeat containing protein 1(CTHRC1) and four-and-a-half LIM domain protein 2 (FHL2), to mediate contraction of collagen gels and migration toward fibronectin were assessed in vitro. RESULTS Compared to control lung fibroblasts, pirfenidone significantly restored TGF-β1-stimulated fibroblast-mediated collagen gel contraction, migration, and CTHRC1 release in lung fibrotic fibroblasts. Furthermore, pirfenidone attenuated TGF-β1- and CTHRC1-induced fibroblast activity, upregulation of bone morphogenic protein-4(BMP-4)/Gremlin1, and downregulation of α-smooth muscle actin, fibronectin, and FHL2, similar to that observed post-CTHRC1 inhibition. In contrast, FHL2 inhibition suppressed migration and fibronectin expression, but did not downregulate CTHRC1. CONCLUSIONS Overall, pirfenidone suppressed fibrotic fibroblast-mediated fibrotic processes via inverse regulation of CTHRC1-induced lung fibroblast activity. Thus, CTHRC1 can be used for predicting pirfenidone response and developing new therapeutic targets for lung fibrosis.
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Affiliation(s)
- Jin Jin
- Department of Respiratory and Critical Care Medicine, Beijing Hospital, National Center of Gerontology, Beijing, 100730, People's Republic of China.,Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Shinsaku Togo
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan. .,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan. .,Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Kotaro Kadoya
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Miniwan Tulafu
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yukiko Namba
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Department of Respiratory Medicine Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomiokahigashi, Kanazawa-ku, Yokohama, Kanagawa, 236-0051, Japan
| | - Moe Iwai
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Junko Watanabe
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Kumi Nagahama
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Takahiro Okabe
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Moulid Hidayat
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Yuzo Kodama
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Hideya Kitamura
- Department of Respiratory Medicine Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomiokahigashi, Kanazawa-ku, Yokohama, Kanagawa, 236-0051, Japan
| | - Takashi Ogura
- Department of Respiratory Medicine Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomiokahigashi, Kanazawa-ku, Yokohama, Kanagawa, 236-0051, Japan
| | - Norikazu Kitamura
- Center for Information Biology, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Kazuho Ikeo
- Center for Information Biology, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan.,Department of Genetics, SOKENDAI, 1111 Yata, Mishima, Shizuoka, 411-8540, Japan
| | - Shinichi Sasaki
- Department of Respiratory Medicine, Juntendo University Urayasu Hospital, Chiba, 279-0001, Japan
| | - Shigeru Tominaga
- Department of Respiratory Medicine, Juntendo University Urayasu Hospital, Chiba, 279-0001, Japan
| | - Kazuhisa Takahashi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Research Institute for Diseases of Old Ages, Juntendo University Graduate School of Medicine, 2-1 -1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
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15
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Kadoya K, Togo S, Tulafu M, Namba Y, Iwai M, Watanabe J, Okabe T, Jin J, Kodama Y, Kitamura H, Ogura T, Kitamura N, Ikeo K, Takeda T, Kondo N, Takahashi K. Specific Features of Fibrotic Lung Fibroblasts Highly Sensitive to Fibrotic Processes Mediated via TGF-β-ERK5 Interaction. Cell Physiol Biochem 2019; 52:822-837. [PMID: 30946557 DOI: 10.33594/000000057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 04/02/2019] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS Lung fibrosis is associated with lung tissue contraction due to abnormal accumulation of myofibroblasts, which aggressively promote the fibrotic process. Transforming growth factor (TGF)-β signaling in fibroblasts promotes extracellular matrix (ECM) synthesis and fibroblast migration and differentiation into myofibroblasts. Inhibition of extracellular signal-regulated kinase (ERK)5 blocks lung fibroblast activation by suppressing TGF-β signaling. Here, we examined the effects of an ERK5 inhibitor on TGF-β1-induced fibrosis in lung fibroblasts. METHODS The effects of ERK5 inhibition following TGF-β1 exposure were evaluated in lung fibroblasts isolated from fibrotic human lung tissues. Fibroblast-mediated collagen gel contraction and fibroblast migration towards fibronectin were assessed. Phenotypic differences in fibrotic fibroblasts were examined using the cap analysis gene expression method for genome-wide quantification of promoter activity. RESULTS TGF-β1stimulated contraction of collagen gels, fibroblast migration, and α-smooth muscle actin and fibronectin expression, and Smad3 phosphorylation were increased in fibrotic fibroblasts as compared to normal lung fibroblasts. Treatment with the ERK5 inhibitor blocked these responses to a greater extent in fibroblasts from patients with usual interstitial pneumonia as compared to nonspecific interstitial pneumonia, independent of bone morphogenetic protein/Smad1 regulation. Moreover, 223 genes including fibulin-5 -which is involved in the TGF-β1-ERK5 signaling network- were upregulated in fibrotic fibroblasts, and ECM regulation was found to be enriched in the Reactome analysis. CONCLUSION ERK5 inhibition attenuated the high sensitivity of fibrotic fibroblasts to TGF-β1/Smad3 signaling. Thus, the ERK5 pathway components and fibulin-5 are potential therapeutic targets to prevent lung fibrosis progression.
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Affiliation(s)
- Kotaro Kadoya
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shinsaku Togo
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan,
| | - Miniwan Tulafu
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yukiko Namba
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Moe Iwai
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Junko Watanabe
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Takahiro Okabe
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Jin Jin
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Respiratory and Critical Care Medicine, Beijing Hospital, National Center of Gerontology, Beijing, China
| | - Yuzo Kodama
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hideya Kitamura
- Department of Respiratory Medicine Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Takashi Ogura
- Department of Respiratory Medicine Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Norikazu Kitamura
- Center for Information Biology, National Institute of Genetics, Mishima, Japan
| | - Kazuho Ikeo
- Center for Information Biology, National Institute of Genetics, Mishima, Japan.,Department of Genetics, SOKENDAI, Mishima, Japan
| | | | - Naoto Kondo
- RIKEN Center for Life Science Technologies, Yokohama, Japan
| | - Kazuhisa Takahashi
- Division of Respiratory Medicine, Juntendo University Faculty of Medicine & Graduate School of Medicine, Tokyo, Japan.,Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, Japan
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16
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Okabe T, Fujimura T, Okajima J, Kambayashi Y, Aiba S, Maruyama S. First-in-human clinical study of novel technique to diagnose malignant melanoma via thermal conductivity measurements. Sci Rep 2019; 9:3853. [PMID: 30846837 PMCID: PMC6405870 DOI: 10.1038/s41598-019-40444-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 02/14/2019] [Indexed: 11/21/2022] Open
Abstract
Melanoma is an aggressive skin cancer that originates from melanocytes and, especially in the case of early-stage melanoma, is distributed adjacent to the epidermis and superficial dermis. Although early-stage melanoma can be distinguished from benign nevus via a dermoscopy, it is difficult to distinguish invasive melanoma in its early stages from in situ melanoma. Because invasive melanoma must undergo a sentinel lymph node biopsy to be diagnosed, a non-invasive method to detect the micro-invasion of early-stage melanoma is needed for dermato-oncologists. This paper proposes a novel quantitative melanoma identification method based on accurate measurements of thermal conductivity using a pen-shaped device. This method requires skin temperature data for one minute to determine the effective thermal conductivity of the skin, allowing it to distinguish melanoma lesions from healthy skin. Results suggest that effective thermal conductivity was negative for in situ melanoma. However, in accordance with tumour progression, effective thermal conductivity was larger in invasive melanoma. The proposed thermal conductivity measurement is a novel tool that detects the micro-invasion of melanoma.
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Affiliation(s)
- Takahiro Okabe
- Graduate School of Science and Technology, Hirosaki University, Hirosaki, Japan.
| | - Taku Fujimura
- Graduate School of Medicine, Tohoku University, Sendai, Japan.
| | | | - Yumi Kambayashi
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Setsuya Aiba
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shigenao Maruyama
- National Institute of Technology, Hachinohe College, Hachinohe, Japan
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17
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Ota T, Takeda T, Fukui T, Nakahara Y, Kudo K, Okabe T, Hayashi H, Otani S, Hiyoshi Y, Yonesaka K, Sugiura T, Suzumura T, Terashima M, Nakano Y, Hasegawa Y, Tsukuda H, Matsui K, Masuda N, Fukuoka M. Serum biomarkers during the first cycle of anti-PD-1 antibody therapies in non-small cell lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy288.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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18
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Amin A, Gold MR, Burke MC, Knight BP, Kalbfleisch SJ, Okabe T, Duffy E, Stahl WK, Husby M, Tyler J, Houmsse M, Daoud EG, Hummel JD, Augostini RS, Weiss R. P2930Subcutaneous implantable cardioverter defibrillator position determines success. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2930] [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: 11/13/2022] Open
Affiliation(s)
- A Amin
- OhioHealth Heart and Vascular, Cardiac Electrophysiology, Columbus, United States of America
| | - M R Gold
- Medical University of South Carolina, Charleston, United States of America
| | - M C Burke
- CorVita Science Foundation, Chicago, United States of America
| | - B P Knight
- Northwestern University, Chicago, United States of America
| | - S J Kalbfleisch
- The Ohio State University, Columbus, United States of America
| | - T Okabe
- The Ohio State University, Columbus, United States of America
| | - E Duffy
- Boston Scientific, Saint Paul, United States of America
| | - W K Stahl
- Boston Scientific, Saint Paul, United States of America
| | - M Husby
- Boston Scientific, Saint Paul, United States of America
| | - J Tyler
- The Ohio State University, Columbus, United States of America
| | - M Houmsse
- The Ohio State University, Columbus, United States of America
| | - E G Daoud
- The Ohio State University, Columbus, United States of America
| | - J D Hummel
- The Ohio State University, Columbus, United States of America
| | - R S Augostini
- The Ohio State University, Columbus, United States of America
| | - R Weiss
- The Ohio State University, Columbus, United States of America
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19
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Matsuura K, Katsuta T, Hirokawa J, Okabe T, Kagemoto M. Efficacy of Escalating the Dose to 54 Gy on Accelerated Hyperfractionated Thoracic Radiation Therapy for Limited-stage Small-cell Lung Cancer: The 6-year Outcomes at a Single Institution. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1750] [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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20
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Okabe T, Terashima H, Sakamoto A. A comparison of gastric emptying of soluble solid meals and clear fluids matched for volume and energy content: a pilot crossover study. Anaesthesia 2017; 72:1344-1350. [DOI: 10.1111/anae.14026] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2017] [Indexed: 12/15/2022]
Affiliation(s)
- T. Okabe
- Department of Anaesthesiology; Hitachi Ltd., Hitachinaka General Hospital; Hitachinaka-shi Japan
| | - H. Terashima
- Hitachinaka Medical Education and Research Center; University of Tsukuba Hospital; Hitachinaka-shi Japan
| | - A. Sakamoto
- Department of Anaesthesiology; Nippon Medical School; Tokyo Japan
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21
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Haddad D, Patel D, Afzal M, Godara H, Badin A, Hummel J, Kalbfleisch S, Houmsse M, Tyler J, Liu Z, Weiss R, Augostini R, Daoud E, Okabe T. P985Clinical decision making for pacemaker implantation following TAVR: lessons from a large single-institution cohort. Europace 2017. [DOI: 10.1093/ehjci/eux151.166] [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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22
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Ueda S, Nishikawa D, Yane K, Akashi Y, Sakiyama T, Terashima M, Okabe T, Yamaguchi M, Matuura T, Okajima K. 393TiP A phase II trial of nedaplatin, 5-fluorouracil and docetaxel for induction chemotherapy with local advanced squamous cell carcinoma of the head and neck. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw587.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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23
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Ueda S, Nishikawa D, Yane K, Akashi Y, Sakiyama T, Terashima M, Okabe T, Yamaguchi M, Matuura T, Okajima K. 393TiP A phase II trial of nedaplatin, 5-fluorouracil and docetaxel for induction chemotherapy with local advanced squamous cell carcinoma of the head and neck. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00551-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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24
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Fu Y, Lam A, Sato I, Okabe T, Sato Y. Reflectance and Fluorescence Spectral Recovery via Actively Lit RGB Images. IEEE Trans Pattern Anal Mach Intell 2016; 38:1313-1326. [PMID: 27295456 DOI: 10.1109/tpami.2015.2439270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In recent years, fluorescence analysis of scenes has received attention in computer vision. Fluorescence can provide additional information about scenes, and has been used in applications such as camera spectral sensitivity estimation, 3D reconstruction, and color relighting. In particular, hyperspectral images of reflective-fluorescent scenes provide a rich amount of data. However, due to the complex nature of fluorescence, hyperspectral imaging methods rely on specialized equipment such as hyperspectral cameras and specialized illuminants. In this paper, we propose a more practical approach to hyperspectral imaging of reflective-fluorescent scenes using only a conventional RGB camera and varied colored illuminants. The key idea of our approach is to exploit a unique property of fluorescence: the chromaticity of fluorescent emissions are invariant under different illuminants. This allows us to robustly estimate spectral reflectance and fluorescent emission chromaticity. We then show that given the spectral reflectance and fluorescent chromaticity, the fluorescence absorption and emission spectra can also be estimated. We demonstrate in results that all scene spectra can be accurately estimated from RGB images. Finally, we show that our method can be used to accurately relight scenes under novel lighting.
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25
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Sato-Tomita A, Shibayama N, Happo N, Kimura K, Okabe T, Matsushita T, Park SY, Sasaki YC, Hayashi K. Development of an X-ray fluorescence holographic measurement system for protein crystals. Rev Sci Instrum 2016; 87:063707. [PMID: 27370459 DOI: 10.1063/1.4953453] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Experimental procedure and setup for obtaining X-ray fluorescence hologram of crystalline metalloprotein samples are described. Human hemoglobin, an α2β2 tetrameric metalloprotein containing the Fe(II) heme active-site in each chain, was chosen for this study because of its wealth of crystallographic data. A cold gas flow system was introduced to reduce X-ray radiation damage of protein crystals that are usually fragile and susceptible to damage. A χ-stage was installed to rotate the sample while avoiding intersection between the X-ray beam and the sample loop or holder, which is needed for supporting fragile protein crystals. Huge hemoglobin crystals (with a maximum size of 8 × 6 × 3 mm(3)) were prepared and used to keep the footprint of the incident X-ray beam smaller than the sample size during the entire course of the measurement with the incident angle of 0°-70°. Under these experimental and data acquisition conditions, we achieved the first observation of the X-ray fluorescence hologram pattern from the protein crystals with minimal radiation damage, opening up a new and potential method for investigating the stereochemistry of the metal active-sites in biomacromolecules.
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Affiliation(s)
- Ayana Sato-Tomita
- Division of Biophysics, Department of Physiology, Jichi Medical University, Yakushiji, Shimotsuke 329-0498, Japan
| | - Naoya Shibayama
- Division of Biophysics, Department of Physiology, Jichi Medical University, Yakushiji, Shimotsuke 329-0498, Japan
| | - Naohisa Happo
- Department of Computer and Network Engineering, Graduate School of Information Sciences, Hiroshima City University, Asa-Minami-Ku, Hiroshima 731-3194, Japan
| | - Koji Kimura
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Takahiro Okabe
- Division of Biophysics, Department of Physiology, Jichi Medical University, Yakushiji, Shimotsuke 329-0498, Japan
| | - Tomohiro Matsushita
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, Sayo, Hyogo 679-5198, Japan
| | - Sam-Yong Park
- Drug Design Laboratory, Department of Medical Life Science, Yokohama City University, Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yuji C Sasaki
- Department of Advanced Material Science, Graduate School of Frontier Science, The University of Tokyo, Kashiwanoha, Kashiwa 277-8561, Japan
| | - Kouichi Hayashi
- Department of Physical Science and Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
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Yamada K, Terai H, Matsumoto T, Okabe T, Suzuki A, Toyoda H, Nakamura H. Effect of Spinal Fixation in Rabbits With Metastatic Tumor Using a Novel Spinal Fusion Model. Clin Spine Surg 2016; 29:E215-21. [PMID: 22820281 DOI: 10.1097/bsd.0b013e3182693f56] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
STUDY DESIGN An experimental assessment of the impact of spinal stabilization on metastasis growth using a rabbit model. OBJECTIVE To investigate the influence of spinal stabilization on the growth of metastatic spinal tumors in rabbits using a novel method of spinal fusion. SUMMARY OF BACKGROUND DATA For spinal metastasis patients, gait disturbances caused by back pain or paraplegia correlates with their prognosis. Palliative surgeries are good options for some patients; however, the appropriate timing and method of spinal surgery remains controversial. METHODS The biomechanical properties of a novel spinal fixation model with a locking plating system were first examined on the L2-L4 fixed vertebrae of 18 Japanese white rabbits. Biomechanical and radiographic examinations were performed at 0, 4, and 8 weeks as compared with controls. After this, another 31 rabbits were then inoculated with VX2 carcinoma cells into the L3 vertebral body and divided into fixation (N=16) and sham (N=15) groups to assess the impact of spinal stabilization on tumor growth. The time to paraplegia, and tumor cell growth and proliferation were evaluated by rabbit behavior, computed tomography, myelogram, and cell proliferation marker (MIB-1 index). RESULTS In the biomechanical loading test, fixed segments showed one eighth of the range of motion and 15 times bending stiffness as compared with controls at each timepoint. No pathologic fractures were observed in the rabbits inoculated with VX2 carcinoma cells before paraplegia, and there was no difference in the time to paraplegia between the fixation and sham groups (26.7 and 28 d, respectively). Similarly, no differences were observed in osteolytic area expansion or tumor cell proliferation (MIB-1 index; 38.1% and 38.0%, respectively). CONCLUSIONS Our locking plate fixation of rabbit spines exhibited sufficient biomechanical properties. Spinal fixation had little influence on the growth of the aggressive carcinoma and the time to paraplegia. However, further investigation is needed to determine the influence of spinal stabilization on slow-growing tumors.
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Affiliation(s)
- Kentaro Yamada
- *Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Abeno-ku, Osaka City, Osaka†Department of Orthopaedic Surgery, National Hospital Organization Shinshu Ueda Medical Center, Nagano, Japan
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Fu Y, Lam A, Sato I, Okabe T, Sato Y. Separating Reflective and Fluorescent Components Using High Frequency Illumination in the Spectral Domain. IEEE Trans Pattern Anal Mach Intell 2016; 38:965-978. [PMID: 26336113 DOI: 10.1109/tpami.2015.2473839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Hyperspectral imaging is beneficial to many applications but most traditional methods do not consider fluorescent effects which are present in everyday items ranging from paper to even our food. Furthermore, everyday fluorescent items exhibit a mix of reflection and fluorescence so proper separation of these components is necessary for analyzing them. In recent years, effective imaging methods have been proposed but most require capturing the scene under multiple illuminants. In this paper, we demonstrate efficient separation and recovery of reflectance and fluorescence emission spectra through the use of two high frequency illuminations in the spectral domain. With the obtained fluorescence emission spectra from our high frequency illuminants, we then describe how to estimate the fluorescence absorption spectrum of a material given its emission spectrum. In addition, we provide an in depth analysis of our method and also show that filters can be used in conjunction with standard light sources to generate the required high frequency illuminants. We also test our method under ambient light and demonstrate an application of our method to synthetic relighting of real scenes.
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Okabe T, Terashima H, Sakamoto A. Underlying principle of liquid gastric emptying. Br J Anaesth 2016; 116:141. [DOI: 10.1093/bja/aev421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Tsuchida H, Nakamura R, Kinashi K, Sakai W, Tsutsumi N, Ozaki M, Okabe T. Radiation-induced colour changes in a spiropyran/BaFCl:Eu2+/polystyrene composite film and nonwoven fabric. NEW J CHEM 2016. [DOI: 10.1039/c6nj01661h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A spiropyran dye and BaFCl:Eu2+ containing polystyrene (PS) film and nonwoven fabric successfully detects X-ray exposure doses in the order of milligray (mGy).
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Affiliation(s)
- Hayato Tsuchida
- Master's Program of Innovative Materials
- Graduate School of Science and Technology
- Kyoto Institute of Technology
- Sakyo
- Japan
| | - Ryotaro Nakamura
- Doctoral Program of Materials and Life Science
- Graduate School of Science and Technology
- Kyoto Institute of Technology
- Sakyo
- Japan
| | - Kenji Kinashi
- Faculty of Materials Science and Engineering
- Kyoto Institute of Technology
- Sakyo
- Japan
| | - Wataru Sakai
- Faculty of Materials Science and Engineering
- Kyoto Institute of Technology
- Sakyo
- Japan
| | - Naoto Tsutsumi
- Faculty of Materials Science and Engineering
- Kyoto Institute of Technology
- Sakyo
- Japan
| | - Makoto Ozaki
- Advanced Technology Center
- Kyoto Institute of Technology
- Sakyo
- Japan
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Murakami Y, Kawabata H, Takeuchi Y, Doi Y, Okabe T, Kenjo M, Kimura T, Nagata Y. Incidence and Clinical Features of Metachronous Esophageal Cancer After Definitive Radiation Therapy for Esophageal Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Lu F, Sugano Y, Okabe T, Sato Y. Gaze Estimation From Eye Appearance: A Head Pose-Free Method via Eye Image Synthesis. IEEE Trans Image Process 2015; 24:3680-3693. [PMID: 26080385 DOI: 10.1109/tip.2015.2445295] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, we address the problem of free head motion in appearance-based gaze estimation. This problem remains challenging because head motion changes eye appearance significantly, and thus, training images captured for an original head pose cannot handle test images captured for other head poses. To overcome this difficulty, we propose a novel gaze estimation method that handles free head motion via eye image synthesis based on a single camera. Compared with conventional fixed head pose methods with original training images, our method only captures four additional eye images under four reference head poses, and then, precisely synthesizes new training images for other unseen head poses in estimation. To this end, we propose a single-directional (SD) flow model to efficiently handle eye image variations due to head motion. We show how to estimate SD flows for reference head poses first, and then use them to produce new SD flows for training image synthesis. Finally, with synthetic training images, joint optimization is applied that simultaneously solves an eye image alignment and a gaze estimation. Evaluation of the method was conducted through experiments to assess its performance and demonstrate its effectiveness.
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Kubo K, Kimura T, Sakaguchi H, Imano N, Kawabata H, Takeuchi Y, Doi Y, Okabe T, Kenjo M, Ozawa S, Murakami Y, Nagata Y. Computed Tomographic Appearance of Radiation Injuries in Lung After Two Prescribed Dose of 48Gy With Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Imano N, Kimura T, Nishibuchi I, Nakashima T, Kubo K, Sakaguchi H, Kawabata H, Takeuchi Y, Doi Y, Okabe T, Kenjo M, Ozawa S, Murakami Y, Nagata Y. A Quantitative Index for Phase Selection in Planning of Respiratory Gating Radiation Therapy for Lung Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Takeuchi Y, Murakami Y, Kubo K, Sakaguchi H, Imano N, Kawabata H, Doi Y, Okabe T, Kenjo M, Kimura T, Nagata Y, Fujita M, Konishi M. Interstitial Brachytherapy for Early-Stage Tongue Cancer: Analysis of the Long-term Treatment Results for Survival and Complications. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1303] [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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35
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Lu F, Matsushita Y, Sato I, Okabe T, Sato Y. From Intensity Profile to Surface Normal: Photometric Stereo for Unknown Light Sources and Isotropic Reflectances. IEEE Trans Pattern Anal Mach Intell 2015; 37:1999-2012. [PMID: 26353183 DOI: 10.1109/tpami.2015.2389841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We propose an uncalibrated photometric stereo method that works with general and unknown isotropic reflectances. Our method uses a pixel intensity profile, which is a sequence of radiance intensities recorded at a pixel under unknown varying directional illumination. We show that for general isotropic materials and uniformly distributed light directions, the geodesic distance between intensity profiles is linearly related to the angular difference of their corresponding surface normals, and that the intensity distribution of the intensity profile reveals reflectance properties. Based on these observations, we develop two methods for surface normal estimation; one for a general setting that uses only the recorded intensity profiles, the other for the case where a BRDF database is available while the exact BRDF of the target scene is still unknown. Quantitative and qualitative evaluations are conducted using both synthetic and real-world scenes, which show the state-of-the-art accuracy of smaller than 10 degree without using reference data and 5 degree with reference data for all 100 materials in MERL database.
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Ohta Y, Okabe T, Larmour C, Di Rocco A, Maijenburg M, Phillips A, Speck NA, Wakitani S, Nakamura T, Yamada Y, Enomoto-Iwamoto M, Pacifici M, Iwamoto M. Articular cartilage endurance and resistance to osteoarthritic changes require transcription factor Erg. Arthritis Rheumatol 2015; 67:2679-90. [PMID: 26097038 PMCID: PMC5568074 DOI: 10.1002/art.39243] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 10/05/2014] [Accepted: 06/09/2015] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To determine whether and how the transcription factor Erg participates in the genesis, establishment, and maintenance of articular cartilage. METHODS Floxed Erg mice were mated with Gdf5-Cre mice to generate conditional mutants lacking Erg in their joints. Joints of mutant and control mice were subjected to morphologic and molecular characterization and also to experimental surgically induced osteoarthritis (OA). Gene expression, promoter reporter assays, and gain- and loss-of-function in vitro tests were used to characterize molecular mechanisms of Erg action. RESULTS Conditional Erg ablation did not elicit obvious changes in limb joint development and overall phenotype in juvenile mice. However, as mice aged, joints of mutant mice degenerated spontaneously and exhibited clear OA-like phenotypic defects. Joints in juvenile mutant mice were more sensitive to surgically induced OA and became defective sooner than operated joints in control mice. Global gene expression data and other studies identified parathyroid hormone-related protein (PTHrP) and lubricin as possible downstream effectors and mediators of Erg action in articular chondrocytes. Reporter assays using control and mutated promoter-enhancer constructs indicated that Erg acted on Ets DNA binding sites to stimulate PTHrP expression. Erg was up-regulated in severely affected areas in human OA articular cartilage but remained barely appreciable in areas of less affected cartilage. CONCLUSION The study shows for the first time that Erg is a critical molecular regulator of the endurance of articular cartilage during postnatal life and that Erg can mitigate spontaneous and experimental OA. Erg appears to do this through regulating expression of PTHrP and lubricin, factors known for their protective roles in joints.
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Affiliation(s)
- Yoichi Ohta
- Translational Research Program in Pediatric Orthopaedics, The Children's Hospital of Philadelphia Division of Orthopaedic Surgery, Philadelphia, PA 19104
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka 565-0871, Japan
| | - Takahiro Okabe
- Department of Orthopedics, Itabashi Chuo General Hospital, Tokyo 173-8606, Japan
| | - Colleen Larmour
- Translational Research Program in Pediatric Orthopaedics, The Children's Hospital of Philadelphia Division of Orthopaedic Surgery, Philadelphia, PA 19104
| | - Agnese Di Rocco
- Translational Research Program in Pediatric Orthopaedics, The Children's Hospital of Philadelphia Division of Orthopaedic Surgery, Philadelphia, PA 19104
| | - Marijke Maijenburg
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Amanda Phillips
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Nancy A. Speck
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Shigeyuki Wakitani
- Department of Artificial Joint and Biomaterials, Hiroshima University Graduate School of Biomedical Sciences, Hiroshima 734-8551, Japan
| | - Takashi Nakamura
- Oral Health and Development Science, Tohoku University Graduate school of Dentistry, Sendai 980-0826, Japan
| | - Yoshihiko Yamada
- National Institute of Dental and Craniofacial Research, NIH, MD 20892
| | - Motomi Enomoto-Iwamoto
- Translational Research Program in Pediatric Orthopaedics, The Children's Hospital of Philadelphia Division of Orthopaedic Surgery, Philadelphia, PA 19104
| | - Maurizio Pacifici
- Translational Research Program in Pediatric Orthopaedics, The Children's Hospital of Philadelphia Division of Orthopaedic Surgery, Philadelphia, PA 19104
| | - Masahiro Iwamoto
- Translational Research Program in Pediatric Orthopaedics, The Children's Hospital of Philadelphia Division of Orthopaedic Surgery, Philadelphia, PA 19104
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Kinashi K, Miyamae Y, Nakamura R, Sakai W, Tsutsumi N, Yamane H, Hatsukano G, Ozaki M, Jimbo K, Okabe T. A spiropyran-based X-ray sensitive fiber. Chem Commun (Camb) 2015; 51:11170-3. [PMID: 26066026 DOI: 10.1039/c5cc03977k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study attempted to visualize reversible X-ray radiation by using a poly-(l-lactic acid) (PLLA) composite fiber with an average diameter of 150 μm. The fiber contains photostimulable phosphor (PSP) BaFCl:Eu(2+) particles that are subsequently dyed with the photochromic spiropyran dye (1,3,3-trimethylindolino-6'-nitrobenzopyrylospiran) (6-nitro BIPS).
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Affiliation(s)
- Kenji Kinashi
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo, Kyoto 606-8585, Japan.
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Takimoto K, Chikamori T, Takebayashi H, Okuda T, Miyamoto S, Takuma Y, Inoue Y, Okabe T, Miyamoto K. Usefulness of the Walking Stroop Carpet in evaluating fall risks among the community-dwelling elderly. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1455] [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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Yakushiji T, Ono M, Igawa W, Takehiko K, Ebara S, Okabe T, Yamashita K, Yamamoto M, Hoshimoto K, Saito S, Amemiya K, Isomura N, Araki H, Ochiai M. Anti-inflammatory effect of colchicine in Japanese patients with stable coronary artery disease: A pilot study. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Okabe T, Terashima H, Sakamoto A. Determinants of liquid gastric emptying: comparisons between milk and isocalorically adjusted clear fluids. Br J Anaesth 2015; 114:77-82. [DOI: 10.1093/bja/aeu338] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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41
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Sugano Y, Okabe T, Sato Y. Adaptive Linear Regression for Appearance-Based Gaze Estimation. IEEE Trans Pattern Anal Mach Intell 2014; 36:2033-2046. [PMID: 26352633 DOI: 10.1109/tpami.2014.2313123] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We investigate the appearance-based gaze estimation problem, with respect to its essential difficulty in reducing the number of required training samples, and other practical issues such as slight head motion, image resolution variation, and eye blinking. We cast the problem as mapping high-dimensional eye image features to low-dimensional gaze positions, and propose an adaptive linear regression (ALR) method as the key to our solution. The ALR method adaptively selects an optimal set of sparsest training samples for the gaze estimation via ℓ(1)-optimization. In this sense, the number of required training samples is significantly reduced for high accuracy estimation. In addition, by adopting the basic ALR objective function, we integrate the gaze estimation, subpixel alignment and blink detection into a unified optimization framework. By solving these problems simultaneously, we successfully handle slight head motion, image resolution variation and eye blinking in appearance-based gaze estimation. We evaluated the proposed method by conducting experiments with multiple users and variant conditions to verify its effectiveness.
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Doi Y, Murakami Y, Katsuta T, Imano N, Okabe T, Kenjo M, Kimura T, Kaneyasu Y, Nagata Y. Four-Dimensional Assessment of the Internal Motion of Esophagus in Early-Stage Esophageal Cancer Patients Using Metal Markers. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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43
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Kenjo M, Kubo T, Shimose S, Fujimori J, Nakashima T, Doi Y, Okabe T, Murakami Y, Kimura T, Kaneyasu Y, Nagata Y. Long-Term Results of Postoperative 3-Dimensional High-Dose-Rate Brachytherapy for Soft-Tissue Sarcomas. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Nishibuchi I, Wadasaki K, Murakami Y, Imano N, Katsuta T, Doi Y, Okabe T, Kenjyo M, Kaneyasu Y, Tomoki K, Ozawa S, Nagata Y. Tolerability and Outcome of Definitive Chemoradiation Therapy for Elderly Patients With Esophageal Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1130] [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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Takeuchi Y, Matsuura K, Katsuta T, Okabe T, Kagemoto M. 45 Gy Versus 54 Gy of Accelerated Hyperfractionated Radiation Therapy for Patients With Limited-Stage Small Cell Lung Cancer: A Retrospective Analysis of a 7-Year Experience. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1859] [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: 10/24/2022]
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Kimura T, Nakashima T, Doi Y, Imano N, Katsuta T, Okabe T, Kenjo M, Ozawa S, Murakami Y, Nagata Y. A Prospective Study of Functional Image Guided Radiation Therapy Planning in Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Okabe T, Miyajima T, Nakagawa K, Tsukamoto S, Fujiwara K, Ikeguchi M. Effect of non-native helix destabilization on the folding of equine β-lactoglobulin. J Biochem 2014; 156:291-7. [DOI: 10.1093/jb/mvu043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Okabe T, Tsukamoto S, Fujiwara K, Shibayama N, Ikeguchi M. Delineation of solution burst-phase protein folding events by encapsulating the proteins in silica gels. Biochemistry 2014; 53:3858-66. [PMID: 24867232 DOI: 10.1021/bi5003647] [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: 11/29/2022]
Abstract
Many studies have shown that during the early stages of the folding of a protein, chain collapse and secondary structure formation lead to a partially folded intermediate. Thus, direct observation of these early folding events is crucial if we are to understand protein-folding mechanisms. Notably, these events usually manifest as the initial unresolvable signals, denoted the burst phase, when monitored during conventional mixing experiments. However, folding events can be substantially slowed by first trapping a protein within a silica gel with a large water content, in which the trapped native state retains its solution conformation. In this study, we monitored the early folding events involving secondary structure formation of five globular proteins, horse heart cytochrome c, equine β-lactoglobulin, human tear lipocalin, bovine α-lactalbumin, and hen egg lysozyme, in silica gels containing 80% (w/w) water by CD spectroscopy. The folding rates decreased for each of the proteins, which allowed for direct observation of the initial folding transitions, equivalent to the solution burst phase. The formation of each initial intermediate state exhibited single exponential kinetics and Arrhenius activation energies of 14-31 kJ/mol.
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Affiliation(s)
- Takahiro Okabe
- Department of Bioinformatics, Soka University , 1-236 Tangi-machi, Hachioji, Tokyo 192-8577, Japan
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Okano T, Mera H, Itokazu M, Okabe T, Koike T, Nakamura H, Wakitani S. Systemic Administration of Granulocyte Colony-Stimulating Factor for Osteochondral Defect Repair in a Rat Experimental Model. Cartilage 2014; 5:107-13. [PMID: 26069690 PMCID: PMC4297080 DOI: 10.1177/1947603514520628] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE The objective of this study was to assess the effect of granulocyte colony-stimulating factor (G-CSF) on osteochondral defect repair in the rat knee. DESIGN Twenty-six 12-week-old male Lewis rats were randomly divided into 2 groups. From day 0 to day 4, the G-CSF group received glycosylated G-CSF, and the control group received phosphate-buffered saline. A 1.5-mm diameter and 1.0-mm deep osteochondral defect was introduced in the patellar groove of the bilateral femur in all rats on day 4. The peripheral blood nucleated cells were counted for 14 days from the first day of injection, the appearance of the cartilage repair was observed histologically and macroscopically for 2, 4, 8, 12, and 24 weeks after surgery. RESULTS The number of peripheral blood leukocytes increased 3 days and returned to normal levels 7 days after the first injection. Compared with the control group, the G-CSF group had more fibrous and/or bony tissue at earlier points in time. The tissue repair rate, which is defined as the percentage of repaired osteochondral defects, was significantly higher in the G-CSF group 4 weeks after surgery. However, there were no significant differences in the cartilage repair rate and the modified Wakitani score between the 2 groups at each time point. CONCLUSIONS The defect filling was significantly better in the G-CSF group in the early phases. Our findings suggest that G-CSF may promote the repair of osteochondral defects by mediating an increase in the number of peripheral blood nucleated cells.
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Affiliation(s)
- Tadashi Okano
- Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Hisashi Mera
- Department of Health and Sports Sciences, Mukogawa Women’s University, Hyogo, Japan
| | - Maki Itokazu
- Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan,Department of Health and Sports Sciences, Mukogawa Women’s University, Hyogo, Japan
| | - Takahiro Okabe
- Department of Orthopedic Surgery, Itabashi Chuo Medical Center, Tokyo, Japan
| | - Tatsuya Koike
- Center for Senile Degenerative Disorders (CSDD), Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Hiroaki Nakamura
- Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Shigeyuki Wakitani
- Department of Health and Sports Sciences, Mukogawa Women’s University, Hyogo, Japan
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Nakagawa K, Yamada Y, Matsumura Y, Tsukamoto S, Yamamoto-Ohtomo M, Ohtomo H, Okabe T, Fujiwara K, Ikeguchi M. Relationship between chain collapse and secondary structure formation in a partially folded protein. Biopolymers 2014; 101:651-8. [DOI: 10.1002/bip.22433] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 08/13/2013] [Accepted: 10/28/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Kanako Nakagawa
- Department of Bioinformatics; Soka University; 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
| | - Yoshiteru Yamada
- Japan Synchrotron Radiation Research Institute; Sayo Hyogo 679-5198 Japan
| | - Yoshitaka Matsumura
- Department of Physics; Kansai Medical University; 18-89 Uyama-Higashi Hirakata 573-1136 Japan
| | - Seiichi Tsukamoto
- Department of Bioinformatics; Soka University; 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
| | - Mio Yamamoto-Ohtomo
- Department of Bioinformatics; Soka University; 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
| | - Hideaki Ohtomo
- Department of Bioinformatics; Soka University; 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
| | - Takahiro Okabe
- Department of Bioinformatics; Soka University; 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
| | - Kazuo Fujiwara
- Department of Bioinformatics; Soka University; 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
| | - Masamichi Ikeguchi
- Department of Bioinformatics; Soka University; 1-236 Tangi-cho Hachioji Tokyo 192-8577 Japan
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