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Sakai C, Matsuyama M, Nakajima M, Matsumura S, Nonaka M, Arai N, Kuramoto K, Yoshida K, Morishima Y, Muratani M, Hizawa N. Blood eosinophil phenotype during treatment with mepolizumab in patients with severe eosinophilic asthma. Allergol Int 2024:S1323-8930(24)00043-1. [PMID: 38582716 DOI: 10.1016/j.alit.2024.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/19/2024] [Accepted: 02/27/2024] [Indexed: 04/08/2024] Open
Affiliation(s)
- Chio Sakai
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masashi Matsuyama
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.
| | - Masayuki Nakajima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Sosuke Matsumura
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Mizu Nonaka
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Naoki Arai
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Kenya Kuramoto
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Kazufumi Yoshida
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yuko Morishima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masafumi Muratani
- Department of Genome Biology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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Weiss MA, Herbst A, Schlegel J, Dannegger T, Evers M, Donges A, Nakajima M, Leitenstorfer A, Goennenwein STB, Nowak U, Kurihara T. Discovery of ultrafast spontaneous spin switching in an antiferromagnet by femtosecond noise correlation spectroscopy. Nat Commun 2023; 14:7651. [PMID: 38030606 PMCID: PMC10687256 DOI: 10.1038/s41467-023-43318-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 11/06/2023] [Indexed: 12/01/2023] Open
Abstract
Owing to their high magnon frequencies, antiferromagnets are key materials for future high-speed spintronics. Picosecond switching of antiferromagnetic spin systems has been viewed a milestone for decades and pursued only by using ultrafast external perturbations. Here, we show that picosecond spin switching occurs spontaneously due to thermal fluctuations in the antiferromagnetic orthoferrite Sm0.7Er0.3FeO3. By analysing the correlation between the pulse-to-pulse polarisation fluctuations of two femtosecond optical probes, we extract the autocorrelation of incoherent magnon fluctuations. We observe a strong enhancement of the magnon fluctuation amplitude and the coherence time around the critical temperature of the spin reorientation transition. The spectrum shows two distinct features, one corresponding to the quasi-ferromagnetic mode and another one which has not been previously reported in pump-probe experiments. Comparison to a stochastic spin dynamics simulation reveals this new mode as smoking gun of ultrafast spontaneous spin switching within the double-well anisotropy potential.
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Affiliation(s)
- M A Weiss
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - A Herbst
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - J Schlegel
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - T Dannegger
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - M Evers
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - A Donges
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - M Nakajima
- Institute of Laser Engineering, Osaka University, 565-0871, Osaka, Japan
| | - A Leitenstorfer
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - S T B Goennenwein
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - U Nowak
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany
| | - T Kurihara
- Department of Physics, University of Konstanz, D-78457, Konstanz, Germany.
- The Institute for Solid State Physics, The University of Tokyo, 277-8581, Kashiwa, Japan.
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Harada H, Suefuji H, Mori K, Ishikawa H, Nakamura M, Tokumaru S, Murakami M, Ogino T, Iwata H, Tatebe H, Kubo N, Waki T, Yoshida D, Nakamura M, Aoyama H, Araya M, Nakajima M, Nakayama H, Satouchi M, Shioyama Y. Proton and Carbon Ion Radiotherapy for Operable Early-Stage Lung Cancer: 3-Year Results of a Prospective Nationwide Registry. Int J Radiat Oncol Biol Phys 2023; 117:e23. [PMID: 37784924 DOI: 10.1016/j.ijrobp.2023.06.698] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The purpose of this analysis was to report subset analysis as to progression-free survival (PFS) and overall survival (OS) of particle-beam radiation therapy for operable early-stage lung cancer. MATERIALS/METHODS Patients of early-stage lung cancer (T1-T2aN0) who were eligible for radical surgery but did not wish to undergo surgery were treated by proton-ion (PT) or carbon-ion (CT) radiation therapy and enrolled in Japanese prospective registry. In this analysis, PFS and OS by clinical stage, tumor location, pathological confirmation and particle-ion type were evaluated. RESULTS A total of 274 patients were enrolled and included in efficacy and safety analyses. Most tumors were adenocarcinoma (44%), and 105 (38%) were not histologically confirmed and diagnosed clinically. 250 (91%) of 274 patients had tumors that were peripherally situated. 138 (50%) and 136 (50%) patients were treated by PT and CT, respectively. The median follow-up time for all censored patients was 42.8 months (IQR 36.7 - 49.0). No grade 3 or severe treatment-related toxicity was observed. 3-year PFS was 81% (95% CI;76-86) and OS was 93% (95% CI;89-96), respectively. As to particle-ion type, 3-year PFS were 79.0% and 81.9% in PT and CT (p = 0.19), and 3-year OS were 93.9% and 91.1% in PT and CT (P = 0.72), respectively. For PFS, pathological confirmation, clinical stage was significant factors but there were no significant differences by tumor location or particle-ion type; for OS, clinical stage was significant factor but there was no significant difference on pathological confirmation, tumor location or particle-ion type (Table1). Table 1. 3-year PFS and OS CONCLUSION: Particle therapy for operable early-stage lung cancer resulted in excellent 3-year OS and PFS on each subset.
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Affiliation(s)
- H Harada
- Radiation and Proton Therapy Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - H Suefuji
- Ion Beam Therapy Center, SAGA HIMAT Foundation, Tosu, Japan
| | - K Mori
- Shizuoka Cancer Center, Nagaizumi, Japan
| | - H Ishikawa
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - M Nakamura
- Department of Radiation Oncology, National Cancer Center Hospital East, Chiba, Japan
| | - S Tokumaru
- Department of Radiology, Hyogo Ion Beam Medical Center, Tatsuno, Hyogo, Japan
| | - M Murakami
- Department of Radiation Oncology, Southern TOHOKU Proton Therapy Center, Koriyama, Japan
| | - T Ogino
- Medipolis Proton Therapy and Research Center, Ibusuki, Japan
| | - H Iwata
- Department of Radiation Oncology, Nagoya Proton Therapy Center, Nagoya City University West Medical Center, Nagoya, Japan
| | - H Tatebe
- Fukui Prefectural Hospital Proton Therapy Center, Fukui, Japan
| | - N Kubo
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - T Waki
- Tsuyama Chuo Hospital, Tsuyama, Japan
| | - D Yoshida
- Kanagawa Cancer Center, Yokohama, Japan
| | - M Nakamura
- University of Tsukuba, Tsukuba City 305-8575, Japan
| | - H Aoyama
- Department of Radiation oncology, Faculty and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - M Araya
- Proton Therapy Center, Aizawa Hospital, Matsumoto, Japan
| | - M Nakajima
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - H Nakayama
- Kanagawa Prefectural Hospital Organization, Yokohama, Japan
| | | | - Y Shioyama
- Ion Beam Therapy Center, SAGA HIMAT Foundation, Tosu, Japan
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Wakatsuki M, Makishima H, Mori Y, Kaneko T, Yasuda S, Okada N, Nakajima M, Murata K, Okonogi N, Aoki S, Ishikawa H, Yamada S. Clinical Outcomes of Carbon-Ion Radiotherapy for Large-Sized (≥4cm) Hepatocellular Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e348. [PMID: 37785207 DOI: 10.1016/j.ijrobp.2023.06.2418] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Radical treatment options for bulky unresectable locally advanced hepatocellular carcinoma (HCC) are limited. The purpose of this study is to evaluate the safety and efficacy of carbon-ion radiotherapy (C-ion RT) for bulky (≥4cm) locally advanced HCC. MATERIALS/METHODS We performed a retrospective cohort study of patients with bulky (≥4cm) locally advanced HCC treated by C-ion RT between April 2000 and March 2020 in our institution. The eligibility criteria for this study were: (1) the treatment protocols of 45.0-48.0 Gy/2 fractions or 52.8-60.0 Gy/4 fractions, which proven the safety and efficacy in the past clinical trials; (2) Tumors within 3 intrahepatic lesions and with a maximum tumor diameter of 4 cm or greater; (3) N0M0 status; (4) an Eastern Cooperative Oncology Group performance status of 0 to 2; (5) controllable ascites; (6) Child-Pugh grade was A or B. Overall survival (OS), progression-free survival (PFS), and local control rate (LC) were calculated by the Kaplan-Meier method, and Cox regression analysis was used for multivariate analysis. Adverse events were evaluated by CTCAE ver. 5.0. JMP® 12 (SAS Institute Inc., Cary, NC, USA) was used for all analyses. We defined p < 0.05 as statistically significant. RESULTS A total of 187 patients met the criteria and were evaluated. The median patient age was 73 years (range, 37-90), and 139 of 187 patients were male. Child-Pugh grade was A in 163 patients and B in 24. Modified albumin-bilirubin (mALBI) grade was 1 in 96 patients, 2a in 50, and 2b in 41. The number of HCV-related HCC cases was in 80, HBV in 32 and non-B and non-C in 75. In 51 patients, identification of vascular invasion to the first-order branch of the portal vein and/or major hepatic vein was confirmed. The median maximum tumor diameter was 5.1 cm (4.0-13.5 cm). In 76 patients, C-ion RT were treated for recurrence. With a median follow-up period of 25.9 months (range, 1.1-215.1), 2-year overall survival, progression-free survival and local control rates were 68.3% (95% confidence interval [CI], 64.7-72.0%), 39.0% (95% CI, 35.2 - 42.8%) and 86.7% (95% CI, 84.7 - 89.7%), respectively. Late adverse events were observed in 3 patients (1.6%) with Grade 3 liver dysfunction and in 3 patients (1.6%) with Grade 3 skin disorders, but there were no cases of Grade 4 or higher. Multivariate analysis of prognostic factors for overall survival revealed that mALBI grade in 2b(HR:3.13, 1.97-4.78, p<0.0001), tumor status in recurrent treatment (HR:1.50, 1.02-2.21, p = 0.039), the number of tumors in 2 or more (HR:2.16, 1.01-2.17, p = 0.045), and maximum tumor diameter in larger than 6 cm (HR:2.34, 1.50-3.61, p = 0.0001) were the predominant prognostic factors, while age, presence of vascular invasion, AFP and DCP were not. CONCLUSION The safety and efficacy of C-ion RT for bulky (≥4cm) locally advanced HCC was demonstrated. These results suggested that C-ion RT may be a new treatment option for locally advanced bulky HCC with no curative treatment options.
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Affiliation(s)
- M Wakatsuki
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - H Makishima
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan; Departement of Radiation Oncology and Proton Medical Research Center, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Y Mori
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - T Kaneko
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan; Department of Radiation Oncology, Yamagata University Faculty of Medicine, Yamagata, Japan
| | - S Yasuda
- Department of Radiation Oncology, Chiba Rosai Hospital, Chiba, Japan
| | | | - M Nakajima
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - K Murata
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - N Okonogi
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - S Aoki
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - H Ishikawa
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - S Yamada
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
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5
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Mori Y, Wakatsuki M, Makishima H, Takashi K, Ishikawa H, Yasuda S, Okada N, Nakajima M, Murata K, Okonogi N, Aoki S, Yamada S. Long-Term Clinical Outcome of Carbon Ion Radio Therapy for Hepatocellular Carcinoma in the Caudate Lobe. Int J Radiat Oncol Biol Phys 2023; 117:e326-e327. [PMID: 37785158 DOI: 10.1016/j.ijrobp.2023.06.2373] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Surgical resection is the first-line treatment for hepatocellular carcinoma in the caudate lobe (caudate HCC), but it is often difficult due to the tumor's location. In addition, radiofrequency ablation and transcatheter arterial chemoembolization are also difficult for the same reason. This study aimed to evaluate the safety and efficacy of carbon-ion radiation therapy (C-ion RT) for caudate HCC. MATERIALS/METHODS We performed a retrospective cohort study of patients with hepatocellular carcinoma treated by C-ion RT between April 2000 and March 2020 in our institution. The eligibility criteria for this study were: (1) located mainly in the caudate lobe (2) the treatment protocols of 45.0-48.0 Gy/2 fractions or 52.8-60.0 Gy/4 fractions, which proved the safety and efficacy in the past clinical trials; (3) N0M0 status; (4) an Eastern Cooperative Oncology Group performance status (PS) of 0 to 2; (5) controllable ascites. The prescribed dose (Gy) used in this study is relative biological effectiveness (RBE) weighted dose. Overall survival (OS), progression-free survival (PFS), and local control rate (LC) were calculated by the Kaplan-Meier method. Adverse events were evaluated by NCI-CTCAE ver. 5.0. SPSS software version 27.0 (IBM Inc.) was used for all analyses. We defined p-value < 0.05 as statistically significant. RESULTS A total of 25 patients met the criteria and were evaluated. The median patient age was 73 years (range 58-89), and 21 of 25 patients were male. The number of patients with PS 0 was 22, PS 1 was 1, and PS 2 was 2. The number of HBV-related HCC cases was in 8, HCV-related HCC cases was in 11, and non-B and non-C cases was in 6. The median maximum tumor diameter was 3.0 cm (1.1-4.8 cm). In 6 patients, identification of vascular invasion to the main trunk of the portal vein and/or major hepatic vein was confirmed. The Child-Pugh (CP) grade was A in 21 patients and B in 4. The modified albumin-bilirubin (mALBI) grade 1 is in 17 patients, 2a in 4, 2b in 4. Prescribed doses were 45 Gy / 2 fr in 3 cases, 48 Gy / 2 fr in 12 cases, 52.8 Gy / 4 fr in 7 cases, and 60 Gy / 4 fr in 3 cases. With a median follow-up period of 43.6 months (range 0.3-85.0), 3-year OS, PFS, and LC were 74% (95% confidence interval [CI], 54.8-93.8%), 32% (95% CI, 11.8-51.4%), and 93% (95% CI, 79.4-106%), respectively. All patients had no Grade 2 or higher adverse events during the observation period. CONCLUSION The safety and efficacy of C-ion RT for caudate HCC were demonstrated. These results suggested that C-ion RT may be a promising treatment option for patients with caudate HCC.
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Affiliation(s)
- Y Mori
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - M Wakatsuki
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - H Makishima
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - K Takashi
- Yamagata university hospital, Yamagata, Japan
| | - H Ishikawa
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - S Yasuda
- Department of Radiation Oncology, Chiba Rosai Hospital, Chiba, Japan
| | | | - M Nakajima
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - K Murata
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - N Okonogi
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - S Aoki
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - S Yamada
- QST Hospital, National Institutes for Quantum Science and Technology, Chiba, Japan
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Nakajima M, Morishima Y, Mori K, Yoshida K, Kuramoto K, Matsuyama M, Kiwamoto T, Matsuno Y, Hizawa N. Hereditary Hemorrhagic Telangiectasia with Diffuse Bronchopulmonary Arteriovenous Malformations. Am J Respir Crit Care Med 2023; 208:726-727. [PMID: 37315322 DOI: 10.1164/rccm.202301-0062im] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 06/14/2023] [Indexed: 06/16/2023] Open
Affiliation(s)
| | | | - Kensaku Mori
- Department of Radiology, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Watanabe K, Tichy A, Kamoi K, Hiasa M, Yonekura K, Tanaka E, Nakajima M, Hosaka K. Restoration of a Microdont Using the Resin Composite Injection Technique With a Fully Digital Workflow: A Flexible 3D-printed Index With a Stabilization Holder. Oper Dent 2023; 48:483-489. [PMID: 37503684 DOI: 10.2341/23-007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2023] [Indexed: 07/29/2023]
Abstract
Direct composite restorations are accepted as a treatment option for microdontia, which is a relatively prevalent condition that poses esthetic concerns. While free-hand composite placement is technique-sensitive and time-consuming, the resin composite injection technique is more straightforward and predictable. A fully digital workflow has been recently introduced, but the 3D-printed resin index is rigid and challenged by undercuts, as opposed to the silicone index. This case report presents a flexible 3D-printed resin index, which can accurately transfer the digitally simulated functional and esthetic form to the final restoration. In addition, a rigid stabilization holder was designed to stabilize the flexible index.
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Affiliation(s)
- K Watanabe
- Keiichiro Watanabe, DDS, PhD, Department of Orthodontics and Dentofacial Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - A Tichy
- Antonin Tichy, DDS, PhD, Institute of Dental Medicine, First Faculty of Medicine of the Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - K Kamoi
- Kohei Kamoi, RDT, Department of Dental Laboratory, Tokushima University Hospital, Tokushima, Japan
| | - M Hiasa
- Masahiro Hiasa, DDS, PhD, Department of Orthodontics and Dentofacial Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - K Yonekura
- Kazuhide Yonekura, DDS, PhD, Department of Regenerative Dental Medicine, Tokushima University Graduate School of Biomedical Sciences, and Institute of Post-LED Photonics, Tokushima University, Tokushima, Japan
| | - E Tanaka
- Eiji Tanaka, DDS, PhD, Department of Orthodontics and Dentofacial Orthopedics, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - M Nakajima
- Masatoshi Nakajima, DDS, PhD, Department of Regenerative Dental Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - K Hosaka
- *Keiichi Hosaka, DDS, PhD, Department of Regenerataive Dental Medicine Tokushima University Graduate School of Biomedical Sciences, and Institute of Post-LED Photonics, Tokushima University, Tokushima, Japan
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8
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Sakae Y, Takada H, Ichinose S, Nakajima M, Sakai A, Ogawa R. Treatment with YIGSR peptide ameliorates mouse tail lymphedema by 67 kDa laminin receptor (67LR)-dependent cell-cell adhesion. Biochem Biophys Rep 2023; 35:101514. [PMID: 37521371 PMCID: PMC10372372 DOI: 10.1016/j.bbrep.2023.101514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 08/01/2023] Open
Abstract
Impaired microcirculation can cause lymphatic leakage which leads to a chronic swelling in the tissues of the body. However, no successful treatment gives any protection against lymphedema due to the lack of well-revealed pathophysiology of secondary lymphedema. Binary image of laminin immunohistochemical expression revealed that distribution of laminin expression localized during surgically induced lymphedema. 67 kDa laminin receptor (67LR) mRNA expression showed a peak at during lymphedema exacerbation. Since the response of 67LR molecules may affect the prevention of inflammation and edema, here we have hypothesized that 67LR ligand of YIGSR peptide could permit reconstructive environment for amelioration of lymphedema and evaluated the effect of YIGSR in a mouse tail model of lymphedema. Indeed, intra-abdominal injections of YIGSR for the first 3 days after inducing lymphedema in the mouse tail model reduced the tail lymphedema on day 14 by 27% (P = 0.035). Histology showed that YIGSR treatment protected lymphedema impairment in epidermis and dermis, and it also inhibited the expansion of intercellular spaces and enhanced especially cell adhesion in the basement membrane as revealed by transmission electron microscopy. Interestingly, the treatment also reduced the local expression of transforming growth factor (TGF)β. Further elucidation of the mechanisms of 67LR-facilitated lymphangiogenesis contributes to find potential targets for the treatment of lymphedema.
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Affiliation(s)
- Y. Sakae
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Japan
| | - H. Takada
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Japan
- Department of Anti-Aging and Preventive Medicine, Nippon Medical School, Japan
| | - S. Ichinose
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Japan
| | - M. Nakajima
- Department of Pharmacology, Nippon Medical School, Japan
| | - A. Sakai
- Department of Pharmacology, Nippon Medical School, Japan
| | - R. Ogawa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Japan
- Department of Anti-Aging and Preventive Medicine, Nippon Medical School, Japan
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9
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Arai N, Nakajima M, Matsuyama M, Matsumura S, Yazaki K, Sakai C, Nonaka M, Yanai H, Numata T, Yamamoto Y, Akatsu Y, Iijima H, Morishima Y, Matsuno Y, Endo T, Muratani M, Ishii Y, Saito T, Hizawa N. Variations in S100A8/ A12 Gene Expression Are Associated with the Efficacy of Nintedanib and Acute Exacerbation Development in Idiopathic Pulmonary Fibrosis Patients. Am J Respir Cell Mol Biol 2023; 69:242-246. [PMID: 37526393 DOI: 10.1165/rcmb.2023-0054le] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023] Open
Affiliation(s)
- Naoki Arai
- University of Tsukuba Ibaraki, Japan
- National Hospital Organization Ibaraki Higashi National Hospital Ibaraki, Japan
| | | | | | | | | | | | - Mizu Nonaka
- University of Tsukuba Ibaraki, Japan
- National Hospital Organization Ibaraki Higashi National Hospital Ibaraki, Japan
| | - Hidetoshi Yanai
- National Hospital Organization Mito Medical Center Ibaraki, Japan
| | - Takeshi Numata
- National Hospital Organization Mito Medical Center Ibaraki, Japan
| | | | | | | | | | | | - Takeo Endo
- National Hospital Organization Mito Medical Center Ibaraki, Japan
| | | | - Yukio Ishii
- National Hospital Organization Ibaraki Higashi National Hospital Ibaraki, Japan
| | - Takefumi Saito
- National Hospital Organization Ibaraki Higashi National Hospital Ibaraki, Japan
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10
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Nonaka M, Matsuyama M, Sakai C, Matsumura S, Arai N, Nakajima M, Saito T, Hizawa N. Risk factors for clinical progression in patients with pulmonary Mycobacterium avium complex disease without culture-positive sputum: a single-center, retrospective study. Eur J Med Res 2023; 28:186. [PMID: 37291649 DOI: 10.1186/s40001-023-01152-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 05/31/2023] [Indexed: 06/10/2023] Open
Abstract
OBJECTIVES Limited data are available on the progression of pulmonary Mycobacterium avium complex (MAC) disease without culture-positive sputum. The aim of this study was to identify the risk factors associated with clinical progression of pulmonary MAC disease diagnosed by bronchoscopy. METHODS A single-center, retrospective, observational study was conducted. Pulmonary MAC patients diagnosed by bronchoscopy without culture-positive sputum from January 1, 2013, to December 31, 2017 were analyzed. Clinical progression after diagnosis was defined as having culture-positive sputum at least once or initiation of guideline-based therapy. Then, clinical characteristics were compared between clinically progressed patients and stable patients. RESULTS Ninety-three pulmonary MAC patients diagnosed by bronchoscopy were included in the analysis. During the 4-year period after diagnosis, 38 patients (40.9%) started treatment, and 35 patients (37.6%) had new culture-positive sputum. Consequently, 52 patients (55.9%) were classified into the progressed group, and 41 patients (44.1%) were classified into the stable group. There were no significant differences between the progressed and the stable groups in age, body mass index, smoking status, comorbidities, symptoms, or species isolated from bronchoscopy. On multivariate analysis, male sex, monocyte to lymphocyte ratio (MLR) ≥ 0.17, and the presence of combined lesions in the middle (lingula) and lower lobes were risk factors for clinical progression. CONCLUSIONS Some patients with pulmonary MAC disease without culture-positive sputum progress within 4 years. Therefore, pulmonary MAC patients, especially male patients, having higher MLR or lesions in the middle (lingula) and lower lobes might need careful follow-up for a longer time.
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Affiliation(s)
- Mizu Nonaka
- Department of Respiratory Medicine, National Hospital Organization Ibarakihigashi National Hospital, Ibaraki, Japan
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masashi Matsuyama
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Ibaraki, Tsukuba, 305-8575, Japan.
| | - Chio Sakai
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Sosuke Matsumura
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Naoki Arai
- Department of Respiratory Medicine, National Hospital Organization Ibarakihigashi National Hospital, Ibaraki, Japan
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masayuki Nakajima
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Takefumi Saito
- Department of Respiratory Medicine, National Hospital Organization Ibarakihigashi National Hospital, Ibaraki, Japan
| | - Nobuyuki Hizawa
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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Matsuyama M, Matsumura S, Nonaka M, Nakajima M, Sakai C, Arai N, Ueda K, Hizawa N. Pathophysiology of pulmonary nontuberculous mycobacterial (NTM) disease. Respir Investig 2023; 61:135-148. [PMID: 36640546 DOI: 10.1016/j.resinv.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/25/2022] [Accepted: 12/08/2022] [Indexed: 01/15/2023]
Abstract
In recent years, the incidence and prevalence of pulmonary nontuberculous mycobacterial (NTM) disease have increased worldwide. Although the reasons for this increase are unclear, dealing with this disease is essential. Pulmonary NTM disease is a chronic pulmonary infection caused by NTM bacteria, which are ubiquitous in various environments. In Japan, Mycobacterium avium-intracellulare complex (MAC) accounts for approximately 90% of the causative organisms of pulmonary NTM disease, which is also called pulmonary MAC disease or pulmonary MAI disease. It is important to elucidate the pathophysiology of this disease, which occurs frequently in postmenopausal women despite the absence of obvious immunodeficiency. The pathophysiology of this disease has not been fully elucidated; however, it can largely be divided into bacterial (environmental) and host-side problems. The host factors can be further divided into immune and airway problems. The authors suggest that the triangular relationship between bacteria, immunity, and the airway is important in the pathophysiology of this disease. The latest findings on the pathophysiology of pulmonary NTM disease are reviewed.
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Affiliation(s)
- Masashi Matsuyama
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan.
| | - Sosuke Matsumura
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan
| | - Mizu Nonaka
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan
| | - Masayuki Nakajima
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan
| | - Chio Sakai
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan
| | - Naoki Arai
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan
| | - Kodai Ueda
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan
| | - Nobuyuki Hizawa
- Department of Respiratory Medicine, Institute of Medicine, University of Tsukuba, Japan
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12
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Yoshida K, Morishima Y, Ano S, Sakurai H, Kuramoto K, Tsunoda Y, Yazaki K, Nakajima M, Sherpa MT, Matsuyama M, Kiwamoto T, Matsuno Y, Ishii Y, Hayashi A, Matsuzaka T, Shimano H, Hizawa N. ELOVL6 deficiency aggravates allergic airway inflammation through the ceramide-S1P pathway in mice. J Allergy Clin Immunol 2022; 151:1067-1080.e9. [PMID: 36592705 DOI: 10.1016/j.jaci.2022.12.808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Elongation of very-long-chain fatty acids protein 6 (ELOVL6), an enzyme regulating elongation of saturated and monounsaturated fatty acids with C12 to C16 to those with C18, has been recently indicated to affect various immune and inflammatory responses; however, the precise process by which ELOVL6-related lipid dysregulation affects allergic airway inflammation is unclear. OBJECTIVES This study sought to evaluate the biological roles of ELOVL6 in allergic airway responses and investigate whether regulating lipid composition in the airways could be an alternative treatment for asthma. METHODS Expressions of ELOVL6 and other isoforms were examined in the airways of patients who are severely asthmatic and in mouse models of asthma. Wild-type and ELOVL6-deficient (Elovl6-/-) mice were analyzed for ovalbumin-induced, and also for house dust mite-induced, allergic airway inflammation by cell biological and biochemical approaches. RESULTS ELOVL6 expression was downregulated in the bronchial epithelium of patients who are severely asthmatic compared with controls. In asthmatic mice, ELOVL6 deficiency led to enhanced airway inflammation in which lymphocyte egress from lymph nodes was increased, and both type 2 and non-type 2 immune responses were upregulated. Lipidomic profiling revealed that the levels of palmitic acid, ceramides, and sphingosine-1-phosphate were higher in the lungs of ovalbumin-immunized Elovl6-/- mice compared with those of wild-type mice, while the aggravated airway inflammation was ameliorated by treatment with fumonisin B1 or DL-threo-dihydrosphingosine, inhibitors of ceramide synthase and sphingosine kinase, respectively. CONCLUSIONS This study illustrates a crucial role for ELOVL6 in controlling allergic airway inflammation via regulation of fatty acid composition and ceramide-sphingosine-1-phosphate biosynthesis and indicates that ELOVL6 may be a novel therapeutic target for asthma.
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Affiliation(s)
- Kazufumi Yoshida
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuko Morishima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.
| | - Satoshi Ano
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; Department of Respiratory Medicine, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Ibaraki, Japan
| | - Hirofumi Sakurai
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kenya Kuramoto
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshiya Tsunoda
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kai Yazaki
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masayuki Nakajima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Mingma Thering Sherpa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masashi Matsuyama
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takumi Kiwamoto
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yosuke Matsuno
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yukio Ishii
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Akio Hayashi
- Exploratory Research Laboratories, Minase Research Institute, Ono Pharmaceutical Co Ltd, Mishima, Osaka, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Chiyoda, Tokyo, Japan
| | - Takashi Matsuzaka
- Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Chiyoda, Tokyo, Japan
| | - Hitoshi Shimano
- Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; AMED-CREST, Japan Agency for Medical Research and Development (AMED), Chiyoda, Tokyo, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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13
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Yamagishi T, Matsuyama M, Watanabe R, Sakai C, Matsumura S, Nakajima M, Kikuchi S, Sakamoto N, Sato Y, Hizawa N. A case of secondary pneumothorax due to multiple pulmonary metastases of granulosa cell tumor. Multidiscip Respir Med 2022; 17:884. [PMID: 36589027 PMCID: PMC9796701 DOI: 10.4081/mrm.2022.884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction Ovarian granulosa cell tumor is a relatively rare tumor that accounts for 2-5% of malignant ovarian tumors. This tumor progresses slowly and may recur late in life. Case presentation A 70-year-old woman was admitted to our hospital with a left secondary pneumothorax due to metastatic lung tumors of granulosa cell tumor. Reports of secondary pneumothorax due to granulosa cell tumor are rare. Thoracoscopic suturing and pleurodesis using talc were effective in the treatment of this pneumothorax. Conclusions We experienced a rare case of secondary pneumothorax due to multiple pulmonary metastases of granulosa cell tumor. It should be noted that pulmonary metastasis of granulosa cell tumor can lead to secondary pneumothorax.
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Affiliation(s)
| | - Masashi Matsuyama
- Department of Respiratory Medicine,Department of Respiratory Medicine, University of Tsukuba 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan. +81.29.853-3144.
| | | | | | | | | | | | - Noriaki Sakamoto
- Department of Diagnostic Pathology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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14
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Sherpa MT, Kiwamoto T, Matsuyama M, Tsunoda Y, Yazaki K, Yoshida K, Nakajima M, Matsuno Y, Morishima Y, Ishii Y, Hizawa N. Has2 Regulates the Development of Ovalbumin-Induced Airway Remodeling and Steroid Insensitivity in Mice. Front Immunol 2022; 12:770305. [PMID: 35069543 PMCID: PMC8777110 DOI: 10.3389/fimmu.2021.770305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/14/2021] [Indexed: 12/23/2022] Open
Abstract
HAS2 is a member of the gene family encoding the hyaluronan synthase 2, which can generate high-molecular-weight hyaluronan (HMW-HA). Our previous study identified HAS2 as a candidate gene for increased susceptibility to adult asthma. However, whether HAS2 dysfunction affects airway remodeling and steroid insensitivity is still limited. Therefore, this study aimed to clarify the Has2 dysfunction, triggering severe airway remodeling and steroid insensitivity in a murine model of asthma. Has2 heterozygous-deficient (Has2+/−) mice and their wild-type littermates have been evaluated in a model of chronic ovalbumin (OVA) sensitization and challenge. Mice present a higher sensitivity to OVA and higher IL-17 release as well as eosinophilic infiltration. RNA sequencing demonstrated the downregulation of EIF2 signaling pathways, TGF-β signaling pathways, and heat shock proteins with Th17 bias in Has2+/−-OVA mice. The combined treatment with anti-IL-17A antibody and dexamethasone reduces steroid insensitivity in Has2+/−-OVA mice. Has2 attenuation worsens eosinophilic airway inflammation, airway remodeling, and steroid insensitivity. These data highlight that HAS2 and HMW-HA are important for controlling intractable eosinophilic airway inflammation and remodeling and could potentially be exploited for their therapeutic benefits in patients with asthma.
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Affiliation(s)
- Mingma Thsering Sherpa
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takumi Kiwamoto
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masashi Matsuyama
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yoshiya Tsunoda
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kai Yazaki
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kazufumi Yoshida
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masayuki Nakajima
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yosuke Matsuno
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuko Morishima
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yukio Ishii
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Nobuyuki Hizawa
- Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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15
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Yabuuchi Y, Matsuyama M, Matsumura S, Nakajima M, Kiyasu Y, Takeuchi Y, Murata Y, Matsuoka R, Noguchi M, Hizawa N. A case of Pneumocystis jirovecii pneumonia in a patient with acquired immune deficiency syndrome who showed eosinophilia and an increased serum TARC/CCL17 level. Multidiscip Respir Med 2022; 17:802. [PMID: 35127079 PMCID: PMC8764545 DOI: 10.4081/mrm.2022.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 11/22/2021] [Indexed: 11/23/2022] Open
Abstract
Pneumocystis jirovecii pneumonia (PCP) in patients with acquired immune deficiency syndrome (AIDS) shows eosinophilic pneumonia like condition. The detailed mechanisms how AIDS-associated PCP causes eosinophilic pneumonia has not been elucidated, but it has been suggested that beta-D-glucan, a major component of Pneumocystis jirovecii, and T helper type 2 immunity may be involved in the mechanism of eosinophilia in the lung. We experienced the case who developed an eosinophilic pneumonia-like condition in a patient with AIDS-associated PCP, whose clinical course indicated the importance of TARC/CCL17 but not IL-4 and IL-5 as involved in eosinophilia caused by HIV and Pneumocystis jirovecii infection.
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16
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Sanon K, Hatayam T, Hosaka K, Nakajima M. Effect of Zinc Chloride on HOCl-Smear Layer Deproteinization. Dent Mater 2022. [DOI: 10.1016/j.dental.2021.12.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Sato T, Nakajima M, Takeishi Y, Nakajima K, Egawa K, Watanabe E, Hasegawa M. Effect of brown rice intake on obese people with exercise habits. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.441] [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: 10/19/2022]
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18
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Ishii Y, Aiba N, Ando M, Asakura N, Bierwage A, Cara P, Dzitko H, Edao Y, Gex D, Hasegawa K, Hayashi T, Hiwatari R, Hoshino T, Ikeda Y, Ishida S, Isobe K, Iwai Y, Jokinen A, Kasugai A, Kawamura Y, Kim JH, Kondo K, Kwon S, Lorenzo SC, Masuda K, Matsuyama A, Miyato N, Morishita K, Nakajima M, Nakajima N, Nakamichi M, Nozawa T, Ochiai K, Ohta M, Oyaidzu M, Ozeki T, Sakamoto K, Sakamoto Y, Sato S, Seto H, Shiroto T, Someya Y, Sugimoto M, Tanigawa H, Tokunaga S, Utoh H, Wang W, Watanabe Y, Yagi M. R&D Activities for Fusion DEMO in the QST Rokkasho Fusion Institute. Fusion Science and Technology 2021. [DOI: 10.1080/15361055.2021.1925030] [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] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Y. Ishii
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Aiba
- National Institutes for Quantum and Radiological Science and Technology, Naka Fusion Institute, Naka City, Japan
| | - M. Ando
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Asakura
- National Institutes for Quantum and Radiological Science and Technology, Naka Fusion Institute, Naka City, Japan
| | - A. Bierwage
- National Institutes for Quantum and Radiological Science and Technology, Naka Fusion Institute, Naka City, Japan
| | - P. Cara
- IFMIF/EVEDA Project Team, Rokkasho-Vill., Japan
| | - H. Dzitko
- Fusion for Energy, Broader Approach, Garching, Germany
| | | | - D. Gex
- Fusion for Energy, Broader Approach, Garching, Germany
| | - K. Hasegawa
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Hayashi
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - R. Hiwatari
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Hoshino
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Ikeda
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Ishida
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Isobe
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Iwai
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - A. Jokinen
- IFMIF/EVEDA Project Team, Rokkasho-Vill., Japan
| | - A. Kasugai
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Kawamura
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - J. H. Kim
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Kondo
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Kwon
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. C. Lorenzo
- Fusion for Energy, Broader Approach, Barcelona, Spain
| | - K. Masuda
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - A. Matsuyama
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Miyato
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Morishita
- Kyoto University, Institute of Advanced Energy, Uji, Japan
| | - M. Nakajima
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - N. Nakajima
- National Institute for Fusion Science, Department of Helical Plasma Research Rokkasho Research Center, Rokkasho-Vill., Japan
| | - M. Nakamichi
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Nozawa
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - K. Ochiai
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Ohta
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Oyaidzu
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Ozeki
- NAT Corporation, Tohoku Branch Office, Rokkasho-Vill., Japan
| | - K. Sakamoto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Sakamoto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Sato
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - H. Seto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - T. Shiroto
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Someya
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Sugimoto
- NAT Corporation, Tohoku Branch Office, Rokkasho-Vill., Japan
| | - H. Tanigawa
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - S. Tokunaga
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - H. Utoh
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - W. Wang
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - Y. Watanabe
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
| | - M. Yagi
- National Institutes for Quantum and Radiological Science and Technology, Rokkasho Fusion Institute, Rokkasho-Vill., Japan
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Yazaki K, Matsuno Y, Yoshida K, Sherpa M, Nakajima M, Matsuyama M, Kiwamoto T, Morishima Y, Ishii Y, Hizawa N. ROS-Nrf2 pathway mediates the development of TGF-β1-induced epithelial-mesenchymal transition through the activation of Notch signaling. Eur J Cell Biol 2021; 100:151181. [PMID: 34763128 DOI: 10.1016/j.ejcb.2021.151181] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/05/2021] [Accepted: 11/02/2021] [Indexed: 01/06/2023] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a cellular process by which epithelial cells transform to acquire mesenchymal phenotypes. Accumulating evidence indicate the involvement of EMT in the progression of malignant diseases. Notch signaling mediates TGF-β1-induced EMT through direct transcriptional activation of Snai1. The molecular mechanism how TGF-β1 activates Notch signaling, however, remains unknown. In this study, we show a pivotal role for reactive oxygen species (ROS)-Nrf2 pathway in TGF-β1-induced Notch signaling activation and EMT development. TGF-β1 induces Nrf2 activation through ROS production. Inhibiting Nrf2 activation either by reducing ROS levels by N-acetylcysteine or by knocking down of Nrf2 by small interfering RNA attenuated both Notch signaling activation and EMT development. TGF-β1 induced the transcription of Notch4 via Nrf2-dependent promoter activation. In conclusion, our study indicates the ROS-Nrf2 pathway mediates the development of TGF-β1-induced EMT through the activation of Notch signaling.
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Affiliation(s)
- Kai Yazaki
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yosuke Matsuno
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan.
| | - Kazufumi Yoshida
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Mingma Sherpa
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Masayuki Nakajima
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Masashi Matsuyama
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Takumi Kiwamoto
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yuko Morishima
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Yukio Ishii
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Nobuyuki Hizawa
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
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20
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Okuma A, Nakajima M, Ito H, Sonoo T, Nakamura K, Goto T. 287 Association Between Comorbid Mental Illness and Preceding Emergency Department Visits in Unplanned Admissions. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Shimojima T, Motoyui Y, Taniuchi T, Bareille C, Onari S, Kontani H, Nakajima M, Kasahara S, Shibauchi T, Matsuda Y, Shin S. Discovery of mesoscopic nematicity wave in iron-based superconductors. Science 2021; 373:1122-1125. [PMID: 34516833 DOI: 10.1126/science.abd6701] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- T Shimojima
- RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan
| | - Y Motoyui
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa 277-8581, Japan
| | - T Taniuchi
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa 277-8581, Japan.,Material Innovation Research Center (MIRC), The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - C Bareille
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa 277-8581, Japan.,Material Innovation Research Center (MIRC), The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
| | - S Onari
- Department of Physics, Nagoya University, Furo-cho, Nagoya 464-8602, Japan
| | - H Kontani
- Department of Physics, Nagoya University, Furo-cho, Nagoya 464-8602, Japan
| | - M Nakajima
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - S Kasahara
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Shibauchi
- Department of Advanced Materials Science, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Y Matsuda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - S Shin
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwa 277-8581, Japan.,Material Innovation Research Center (MIRC), The University of Tokyo, Kashiwa, Chiba 277-8561, Japan.,Office of University Professor, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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22
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Iizumi T, Okumura T, Maruo K, Baba K, Murakami M, Shimizu S, Saito T, Nakajima M, Makishima H, Numajiri H, Mizumoto M, Nakai K, Sakurai H. 943P Long-term outcome of the oldest-old patients (85 years or older) underwent proton beam therapy for hepatocellular carcinoma. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.163] [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] Open
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23
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Kuramoto K, Matsuyama M, Nonaka M, Takeishi T, Oshima H, Matsumura S, Nakajima M, Sakai C, Shiozawa T, Kiwamoto T, Tsukahara Y, Takayashiki N, Ogawa R, Morishima Y, Noguchi M, Hizawa N. Negative-pressure pulmonary Hemorrhaging Due to Severe Obstructive Sleep Apnea. Intern Med 2021; 60:2291-2296. [PMID: 33612674 PMCID: PMC8355386 DOI: 10.2169/internalmedicine.6206-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 24-year-old man with a history of bloody sputum for 6 months was referred to our hospital with suspected alveolar hemorrhaging due to vasculitis. Chest computed tomography showed ground-glass opacities in both lungs, and an examination of his bronchoalveolar lavage fluid showed alveolar hemorrhaging. However, no evidence of vasculitis was found, and subsequent polysomnographic testing confirmed that he had severe obstructive sleep apnea (OSA). Since the alveolar hemorrhaging improved after the initiation of continuous positive airway pressure treatment, the diagnosis was negative-pressure alveolar hemorrhaging due to severe OSA.
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Affiliation(s)
- Kenya Kuramoto
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Masashi Matsuyama
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Mizu Nonaka
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Takahiro Takeishi
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Hisayuki Oshima
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Sosuke Matsumura
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Masayuki Nakajima
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Chio Sakai
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Toshihiro Shiozawa
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Takumi Kiwamoto
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | | | - Norio Takayashiki
- Department of Pathology, Faculty of Medicine, University of Tsukuba, Japan
| | - Ryoko Ogawa
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Yuko Morishima
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
| | - Masayuki Noguchi
- Department of Pathology, Faculty of Medicine, University of Tsukuba, Japan
| | - Nobuyuki Hizawa
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Japan
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24
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Ano S, Kikuchi N, Matsuyama M, Nakajima M, Kondo Y, Masuda M, Osawa H, Ishii Y, Hizawa N. Transcriptome genetic differences between responders and non-responders before bronchial thermoplasty. J Asthma 2021; 59:1641-1651. [PMID: 34143700 DOI: 10.1080/02770903.2021.1945088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bronchial thermoplasty (BT) is an endoscopic therapy used for the treatment of refractory asthma. Some predictive factors, for example the number of activations and severity of disease at baseline, have been used to determine the effectiveness of BT in treating patients with asthma. The aim of the present study was to comprehensively analyze RNA samples from the airway bronchial tissues of patients with severe asthma treated by BT, and to characterize each patient as a BT responder or non-responder. METHODS Eight patients with severe asthma scheduled to undergo BT and bronchus biopsies were recruited before the procedures were conducted. Extracted RNA samples from bronchial tissues were sequenced and differential gene expression analysis was carried out.Results/discussion: Subjects with Asthma Quality of Life Questionnaire score changes ≥0.5 for a period of 12 months were considered BT responders. Non-responders had score changes <0.5 for 12 months. Histopathology findings were similar to those reported previously, and no significant differences in the expression of α-smooth muscle actin and protein gene product 9.5 were observed between responders and non-responders. Transcriptome analysis at baseline identified 67 genes that were differentially expressed between responders and non-responders, including SLPI, MMP3, and MUC19, which were upregulated in responders. Although the differentially expressed gene products may have conflicting effects, genes in the airway epithelium and extracellular matrix of patients with severe asthma may determine the BT response. Our results identified possible transcriptomic changes that could be used to identify BT responders.
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Affiliation(s)
- Satoshi Ano
- The Department of Respiratory Medicine, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Japan
| | - Norihiro Kikuchi
- The Department of Respiratory Medicine, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Japan
| | - Masashi Matsuyama
- The Department of Respiratory Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masayuki Nakajima
- The Department of Respiratory Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuzuru Kondo
- The Department of Diagnostic Pathology, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Japan
| | - Michiko Masuda
- The Department of Respiratory Medicine, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Japan
| | - Hajime Osawa
- The Department of Respiratory Medicine, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Japan.,The Department of Respiratory Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yukio Ishii
- The Department of Respiratory Medicine, National Hospital Organization Kasumigaura Medical Center, Tsuchiura, Japan.,The Department of Respiratory Medicine, University of Tsukuba, Tsukuba, Japan
| | - Nobuyuki Hizawa
- The Department of Respiratory Medicine, University of Tsukuba, Tsukuba, Japan
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25
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Yamada H, Nakajima M, Matsuyama M, Morishima Y, Arai N, Hida N, Nakaizumi T, Masuko H, Yatagai Y, Saito T, Hizawa N. Identification of distinct phenotypes related to benralizumab responsiveness in patients with severe eosinophilic asthma. PLoS One 2021; 16:e0248305. [PMID: 33705484 PMCID: PMC7951858 DOI: 10.1371/journal.pone.0248305] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/23/2021] [Indexed: 11/26/2022] Open
Abstract
Purpose To characterize the clinical phenotypes of severe eosinophilic asthma based on early responsiveness to benralizumab in terms of forced expiratory volume in 1 second (FEV1) improvement. Patients and methods Sixty-four participants diagnosed with severe eosinophilic asthma and who had completed 4 months of benralizumab treatment were included in this analysis. Pre-treatment clinical factors were compared between responders and non-responders according to improvements in ACT or FEV1. Correlations between the sums of increased Type 2-related inflammatory parameters and changes of ACT or FEV1 were also evaluated before and after the 4-month treatment. A two-step cluster analysis was performed to identify distinct phenotypes related to benralizumab responsiveness in terms of FEV1. Results At the 4-month timepoint, all parameters, except for FeNO, were significantly improved after benralizumab treatment. FEV1 responders were associated with higher levels of Type 2-related inflammatory parameters. An improvement in FEV1 but not in ACT was clearly associated with increases in the sums of increased type 2-related inflammation parameters (p = 0.0001). The cluster analysis identified 5 distinct phenotypes of severe eosinophilic asthma according to the variable FEV1 responsiveness to benralizumab. The greatest response was found in the distinct phenotype of severe eosinophilic asthma, which was characterized by modest increase in total IgE and FeNO relative to blood eosinophils with least exposure to smoking. Conclusion This study, to the best of our knowledge, is the first cluster analysis to report distinct phenotypes related to clinical benralizumab response in a real-world population with severe eosinophilic asthma. These results may help to predict responsiveness to benralizumab in patients with severe eosinophilic asthma.
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Affiliation(s)
- Hideyasu Yamada
- Faculty of Medicine, Department of Pulmonary Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Division of Respiratory Medicine, Hitachi Ltd, Hitachinaka General Hospital, Hitachinaka, Ibaraki, Japan
- * E-mail:
| | - Masayuki Nakajima
- Faculty of Medicine, Department of Pulmonary Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masashi Matsuyama
- Faculty of Medicine, Department of Pulmonary Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuko Morishima
- Faculty of Medicine, Department of Pulmonary Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Naoki Arai
- Department of Respiratory Medicine, National Hospital Organization, Ibarakihigashi National Hospital, Tokaimura, Ibaraki, Japan
| | - Norihito Hida
- Division of Respiratory Medicine, Hitachi Ltd, Hitachinaka General Hospital, Hitachinaka, Ibaraki, Japan
| | - Taisuke Nakaizumi
- Division of Respiratory Medicine, Hitachi Ltd, Hitachinaka General Hospital, Hitachinaka, Ibaraki, Japan
| | - Hironori Masuko
- Faculty of Medicine, Department of Pulmonary Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yohei Yatagai
- Division of Respiratory Medicine, Tsukuba Gakuen Hospital, Tsukuba, Ibaraki, Japan
| | - Takefumi Saito
- Department of Respiratory Medicine, National Hospital Organization, Ibarakihigashi National Hospital, Tokaimura, Ibaraki, Japan
| | - Nobuyuki Hizawa
- Faculty of Medicine, Department of Pulmonary Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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26
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Ono T, Yamamoto N, Nomoto A, Nakajima M, Yamada S, Tsuji H. P05.07 Single-Fraction Carbon ion Radiotherapy for Patients with Early-Stage Lung Cancer with or without Interstitial Pneumonitis. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Hirai K, Nagai K, Ono T, Nakajima M, Hayakawa T, Sakata Y, Nakamura Y. Recovery from severe metabolic alkalosis with acute kidney injury due to gastric cancer: a case report. J Rural Med 2021; 16:47-51. [PMID: 33442435 PMCID: PMC7788306 DOI: 10.2185/jrm.2020-025] [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: 05/12/2020] [Accepted: 07/18/2020] [Indexed: 11/27/2022] Open
Abstract
Objective: Most cases of severe metabolic alkalosis have many causes that may result in renal failure and death. Therefore, these should be treated promptly for successful recovery. Patient: A 61-year-old man was hospitalized due to an acute kidney injury (creatinine level of 4.36 mg/dL) after a 3-month history of anorexia and recurrent vomiting. He had been treated for tuberculosis in the past. Results: Blood gas analysis revealed severe metabolic alkalosis with pH=7.66, HCO3=94 mmol/L, and pCO2=82.0 mmHg. Routine biochemical examination revealed severe hypokalemia (K 2.9 mEq/L) that was associated with prolonged QTc interval (0.52 seconds) on the electrocardiogram. Gastrofiberscopic examination also revealed severe stenosis and ulcerated scarring of the gastric pylorus and severe esophagitis. Intravenous hydration and correction of hypokalemia improved renal function and resolved metabolic alkalosis. An investigation that was repeated after 6 days revealed a creatinine level of 1.58 mg/dL, pH=7.47, HCO3=23.4 mmol/L, K=3.6 mEq/L, and QTc of 0.45 seconds. The patient underwent gastrectomy and adenocarcinoma was observed. Conclusion: We described a resolved case of severe metabolic alkalosis and acute kidney injury in a rural medical setting following conservative management.
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28
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Tsukamoto T, Nakajima N, Sakurai A, Nakajima M, Sakurai E, Sato Y, Takahashi K, Kanno T, Kataoka M, Katano H, Iwata M, Doi Y, Suzuki T. Lung Pathology of Mutually Exclusive Co-infection with SARS-CoV-2 and Streptococcus pneumoniae. Emerg Infect Dis 2021; 27:919-923. [PMID: 33443011 PMCID: PMC7920656 DOI: 10.3201/eid2703.204024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Postmortem lung pathology of a patient in Japan with severe acute respiratory syndrome coronavirus 2 infection showed diffuse alveolar damage as well as bronchopneumonia caused by Streptococcus pneumoniae infection. The distribution of each pathogen and the accompanying histopathology suggested the infections progressed in a mutually exclusive manner within the lung, resulting in fatal respiratory failure.
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29
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Nakajima M, Taguchi R, Yabuuchi A, Kinomura A. Reduction of background radiation effects for positron lifetime measurements in the slow positron beamline at the Kyoto University Research Reactor. Rev Sci Instrum 2020; 91:125109. [PMID: 33379944 DOI: 10.1063/5.0013891] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 11/10/2020] [Indexed: 06/12/2023]
Abstract
Positron annihilation lifetime spectroscopy (PALS), which is recognized as one of the major analytical methods of positron annihilation spectroscopy, can directly detect information related to the size of vacancy-type defects from lifetime values. PALS measurements performed under high background radiation have been previously reported. It is well known that coincidence techniques such as age-momentum correlation (AMOC) measurements are effective for the background reduction, but count rates decline significantly. In this study, a preliminary experiment was performed to reduce the influence of the background radiation without the coincidence technique in the pulsing system of the Kyoto University research Reactor (KUR) slow positron beamline. This experiment involved the introduction of a gate circuit for the background radiation discrimination using a dynode signal from a single scintillation detector (photomultiplier). After introducing the gate circuit, the time resolution and the lifetime value of Kapton were 308 ps and 388 ± 3 ps, respectively, with count rates of ∼400 counts/s at a KUR 5 MW operation. In the AMOC measurement, the time resolution and the lifetime value of Kapton were 297 ps and 380 ± 7 ps, respectively, with count rates of ∼40 counts/s at a KUR 5 MW operation. When the single detector with the gate circuit was used, the count rate was ∼1 order of magnitude higher than those of the AMOC measurements, while the time resolutions of the two methods were comparable.
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Affiliation(s)
- M Nakajima
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori-cho, Osaka 590-0494, Japan
| | - R Taguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori-cho, Osaka 590-0494, Japan
| | - A Yabuuchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori-cho, Osaka 590-0494, Japan
| | - A Kinomura
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori-cho, Osaka 590-0494, Japan
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30
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Sato T, Nakajima M, Takeishi Y, Nakajima K, Hasegawa M. Effect of brown rice on the blood exam in Japanese sumo wrestling. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Nakajima M, Rauramaa T, Mäkinen PM, Hiltunen M, Herukka SK, Kokki M, Musialowicz T, Jyrkkänen HK, Danner N, Junkkari A, Koivisto AM, Jääskeläinen JE, Miyajima M, Ogino I, Furuta A, Akiba C, Kawamura K, Kamohara C, Sugano H, Tange Y, Karagiozov K, Leinonen V, Arai H. Protein tyrosine phosphatase receptor type Q in cerebrospinal fluid reflects ependymal cell dysfunction and is a potential biomarker for adult chronic hydrocephalus. Eur J Neurol 2020; 28:389-400. [PMID: 33035386 PMCID: PMC7821334 DOI: 10.1111/ene.14575] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/30/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND PURPOSE Protein tyrosine phosphatase receptor type Q (PTPRQ) was extracted from the cerebrospinal fluid (CSF) of patients with probable idiopathic normal-pressure hydrocephalus (iNPH) by proteome analysis. We aimed to assess the feasibility of using CSF PTPRQ concentrations for the additional diagnostic criterion of iNPH in Japanese and Finnish populations. METHODS We compared PTPRQ concentrations among patients with probable iNPH and neurologically healthy individuals (normal control [NC] group), patients with normal-pressure hydrocephalus (NPH) of acquired and congenital/developmental aetiologies, patients with Alzheimer's disease and patients with Parkinson's disease in a Japanese analysis cohort. A corresponding iNPH group and NC group in a Finnish cohort was used for validation. Patients in the Finnish cohort who underwent biopsy were classified into two groups based on amyloid and/or tau deposition. We measured PTPRQ expression levels in autopsied brain specimens of iNPH patients and the NC group. RESULTS Cerebrospinal fluid PTPRQ concentrations in the patients with NPH of idiopathic, acquired and congenital/developmental aetiologies were significantly higher than those in the NC group and those with Parkinson's disease, but iNPH showed no significant differences when compared with those in the Alzheimer's disease group. For the patients with iNPH, the area under the receiver-operating characteristic curve was 0.860 in the Japanese iNPH and 0.849 in the Finnish iNPH cohorts. Immunostaining and in situ hybridization revealed PTPRQ expression in the ependymal cells and choroid plexus. It is highly possible that the elevated PTPRQ levels in the CSF are related to ependymal dysfunction from ventricular expansion. CONCLUSIONS Cerebrospinal fluid PTPRQ levels indicated the validity of this assay for auxiliary diagnosis of adult chronic hydrocephalus.
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Affiliation(s)
- M Nakajima
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - T Rauramaa
- Institute of Clinical Medicine-Pathology, University of Eastern, Finland.,Department of Pathology, Kuopio University Hospital, Kuopio, Finland
| | - P M Mäkinen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - M Hiltunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - S-K Herukka
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, Kuopio, Finland.,Neurocentre, Neurology, Kuopio University Hospital, Kuopio, Finland
| | - M Kokki
- Department of Anaesthesiology and Intensive Care, Kuopio University Hospital, Kuopio, Finland
| | - T Musialowicz
- Department of Anaesthesiology and Intensive Care, Kuopio University Hospital, Kuopio, Finland
| | - H-K Jyrkkänen
- Institute of Clinical Medicine-Neurosurgery, University of Eastern, Finland.,Neurocentre, Neurosurgery, Kuopio University Hospital, Kuopio, Finland
| | - N Danner
- Institute of Clinical Medicine-Neurosurgery, University of Eastern, Finland.,Neurocentre, Neurosurgery, Kuopio University Hospital, Kuopio, Finland
| | - A Junkkari
- Institute of Clinical Medicine-Neurosurgery, University of Eastern, Finland.,Neurocentre, Neurosurgery, Kuopio University Hospital, Kuopio, Finland
| | - A M Koivisto
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, Kuopio, Finland.,Neurocentre, Neurology, Kuopio University Hospital, Kuopio, Finland
| | - J E Jääskeläinen
- Institute of Clinical Medicine-Neurosurgery, University of Eastern, Finland.,Neurocentre, Neurosurgery, Kuopio University Hospital, Kuopio, Finland
| | - M Miyajima
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - I Ogino
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - A Furuta
- Department of Psychiatry and Behavioural Science, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - C Akiba
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - K Kawamura
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - C Kamohara
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - H Sugano
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Y Tange
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - K Karagiozov
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - V Leinonen
- Institute of Clinical Medicine-Neurosurgery, University of Eastern, Finland.,Neurocentre, Neurosurgery, Kuopio University Hospital, Kuopio, Finland.,Unit of Clinical Neuroscience, Neurosurgery, University of Oulu and Medical Research Centre, Oulu University Hospital, Oulu, Finland
| | - H Arai
- Department of Neurosurgery, Juntendo University Faculty of Medicine, Tokyo, Japan
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32
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Nagai K, Niisaka M, Nakajima M, Sakata Y, Nakamura Y. Mizoribine treatment in an elderly diabetic patient with antisynthetase-associated interstitial lung disease. J Rural Med 2020; 15:225-229. [PMID: 33033547 PMCID: PMC7530592 DOI: 10.2185/jrm.2020-018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/18/2020] [Indexed: 11/27/2022] Open
Abstract
Objective: Immunosuppressive therapy for interstitial lung disease (ILD) is
often necessary, but the standard regimen for antisynthetase-associated ILD has not been
established. Patient: An 80-year-old man was hospitalized for severely progressive
dyspnea. Bilateral interstitial shadows occurred 1 month before the event. Serological
findings showed that he had antisynthetase-associated ILD, as identified by strong
positivity for anti-aminoacyl-transfer RNA synthetase (ARS) antibody, despite no evidence
of myositis. He was treated transiently with noninvasive positive pressure ventilation and
steroid-pulse therapy followed by 60 mg/day of oral prednisolone. However, his diabetes
mellitus was aggravated by corticosteroid therapy; thus, a combination of low-dose steroid
and mizoribine (MZB), which has a low risk of aggravating glucose intolerance, was
used. Results: The patient’s clinical symptoms and daily life activities have been
well persevered as an outpatient and well maintained with 200 mg of MZB and 10 mg of
prednisolone for several months without obvious clinical recurrence and without any
remarkable steroid- and MZB-related side effects. Conclusion: The use of MZB appeared to suppress the pathophysiology of
anti-ARS antibody-associated ILD.
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33
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Miyaki T, Kida T, Oosuka S, Fukumoto M, Sato T, Nakajima M, Ikeda T. Valsalva retinopathy induced by handstand: a case report. BMC Ophthalmol 2020; 20:368. [PMID: 32928156 PMCID: PMC7491093 DOI: 10.1186/s12886-020-01638-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 09/08/2020] [Indexed: 11/15/2022] Open
Abstract
Background Valsalva retinopathy is known to occur as a sudden preretinal or sub-internal limiting membrane hemorrhage induced by a rapid rise in venous pressure following increased intrathoracic or intraabdominal pressure. Here we report a case of Valsalva retinopathy that was probably induced by straining that occurred due to following a handstand. Case presentation A 15-year-old boy became aware of decreased visual acuity in his left eye immediately after doing a handstand for approximately 10 s during physical education class, and subsequently visited a local clinic on the same day. Upon examination, a vitreous hemorrhage (VH) in the posterior pole of the fundus was found in his left eye, and he was subsequently referred to our department 7 days later. Upon examination, the VH around the optic nerve head of the left eye appeared to be resolved, and an oval-shaped sub-internal limiting membrane (sub-ILM) hemorrhage was found in the superonasal side of the optic nerve head. No abnormalities were observed in the macular area. Four months later, the sub-ILM hemorrhage was found to have spontaneously resolved. Subsequent fluorescein angiography examinations revealed no abnormal findings at the lesion site. Conclusions In this patient, we hypothesize that the Valsalva retinopathy was induced by straining that occurred due to a handstand, and that the resultant sub-ILM hemorrhage progressed to VH.
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Affiliation(s)
- Toshiya Miyaki
- Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki City, Osaka, 569-8686, Japan
| | - Teruyo Kida
- Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki City, Osaka, 569-8686, Japan
| | - Shou Oosuka
- Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki City, Osaka, 569-8686, Japan
| | - Masanori Fukumoto
- Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki City, Osaka, 569-8686, Japan
| | - Takaki Sato
- Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki City, Osaka, 569-8686, Japan
| | | | - Tsunehiko Ikeda
- Department of Ophthalmology, Osaka Medical College, 2-7 Daigaku-machi, Takatsuki City, Osaka, 569-8686, Japan.
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Nakajima M, Matsuyama M, Arai N, Yamada H, Hyodo K, Nonaka M, Kitazawa H, Yoshida K, Shigemasa R, Morishima Y, Kiwamoto T, Masuko H, Ishii Y, Muratani M, Saito T, Hizawa N. Identification of whole blood gene expressions correlated with responsiveness to benralizumab. J Allergy Clin Immunol 2020; 147:772-775. [PMID: 32795588 DOI: 10.1016/j.jaci.2020.08.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 01/01/2023]
Affiliation(s)
- Masayuki Nakajima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masashi Matsuyama
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.
| | - Naoki Arai
- National Hospital Organization Ibarakihigashi National Hospital, Naka-gun, Ibaraki, Japan
| | - Hideyasu Yamada
- Division of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan; Division of Respiratory Medicine, Hitachi Hitachinaka General Hospital, Tsukuba, Ibaraki, Japan
| | - Kentaro Hyodo
- National Hospital Organization Ibarakihigashi National Hospital, Naka-gun, Ibaraki, Japan
| | - Mizu Nonaka
- National Hospital Organization Ibarakihigashi National Hospital, Naka-gun, Ibaraki, Japan
| | - Haruna Kitazawa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kazufumi Yoshida
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Rie Shigemasa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yuko Morishima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takumi Kiwamoto
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hironori Masuko
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yukio Ishii
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Masafumi Muratani
- Department of Genome Biology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Takefumi Saito
- National Hospital Organization Ibarakihigashi National Hospital, Naka-gun, Ibaraki, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Tichy A, Hosaka K, Abdou A, Nakajima M, Tagami J. Degree of Conversion Contributes to Dentin Bonding Durability of Contemporary Universal Adhesives. Oper Dent 2020; 45:556-566. [DOI: 10.2341/19-165-l] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2019] [Indexed: 11/23/2022]
Abstract
Clinical Relevance
The degree of conversion of contemporary universal adhesives positively correlates with the bond strength to dentin. The correlation is more marked after thermocycling, suggesting that a high degree of conversion is required for long-term dentin bonding durability.
SUMMARY
Purpose: The objectives of this study were to evaluate the micro-tensile bond strength (μTBS) of five contemporary universal adhesives to dentin after 24 hours and thermocycling (TC), to measure their degrees of conversion (DC) and to test the correlation between μTBS and DC.
Methods and Materials: Four commercially available universal adhesives, Prime&Bond universal (PBU), Ecosite Bond (EB), G-Premio Bond (GPB), and Clearfil Universal Bond Quick (UBQ), and one experimental adhesive, UBQ without an amide monomer (UBQ-A), were used in this study. For the μTBS test, midcoronal dentin of 50 human molars was exposed, ground using 600-grit SiC paper, and the adhesives were applied according to the manufacturers’ instructions. After resin-composite buildup and 24-hour water storage, one-half of the specimens were subjected to 15,000 thermal cycles. The specimens were sectioned into beams and stressed in tension at a crosshead speed of 1 mm/min until failure. The DC of adhesives applied to dentin was evaluated using attenuated total reflectance Fourier-transform infrared spectroscopy immediately after light-curing. All data were statistically analyzed at a significance level of 0.05.
Results: The highest μTBSs were obtained with UBQ, UBQ-A, and PBU, which were not significantly different from each other both after 24 hours and TC. The μTBS of GPB was lower compared with the aforementioned adhesives, but significantly only after TC, and the lowest μTBSs were obtained with EB. TC did not affect the μTBSs of UBQ, UBQ-A, and PBU significantly, but a significant decrease was observed with GPB and EB. The highest DC was obtained with PBU and UBQ, followed by 2-hydroxyethyl methacrylate–rich adhesives UBQ-A and EB, which exhibited significantly lower DCs. The DC of GPB could not be determined because the reference peak at 1608 cm−1 was not detected in its spectra. A significant positive correlation was shown between μTBS and DC after 24 hours (r=0.716) and TC (r=0.856).
Conclusion: μTBS and DC were positively correlated, more markedly after TC, which suggests that DC may be an important factor for bond durability.
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Vargas EA, dos Santos EA, Pittet A, Corrêa TBS, da Rocha APP, Diaz GJ, Gorni R, Koch P, Lombaert GA, MacDonald S, Mallmann CA, Meier P, Nakajima M, Neil RJ, Patel S, Petracco M, Prado G, Sabino M, Steiner W, Stroka J, Taniwaki MH, Wee SM. Determination of Ochratoxin A in Green Coffee by Immunoaffinity Column Cleanup and Liquid Chomatography: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/88.3.773] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A collaborative study was conducted to evaluate a method using immunoaffinity column cleanup with liquid chromatography (LC) for the determination of ochratoxin A (OTA) in green coffee at levels that could be included in possible future regulations of the European Union. The test portion was extracted with methanol–3% aqueous sodium hydrogen carbonate solution (50 + 50, v/v). The extract was filtered, and the filtrate was diluted with phosphate-buffered saline and applied to an immunoaffinity column containing antibodies specific for OTA. After washing, the toxin was eluted from the column with methanol and quantified by LC with fluorescence detection. Pairs of 4 homogeneous noncontaminated and naturally contaminated materials (mean levels of <0.12, 2.44, 5.15, and 13.46 ng/g) and blank samples (<0.12 ng/g) for spiking were sent to 20 participant laboratories from 8 countries. The materials were analyzed according to the method description and all difficulties encountered in the analysis were reported. Statistical analysis was carried out according to the Harmonized Protocol of the International Union of Pure and Applied Chemistry. The relative standard deviation for repeatability (RSDr) ranged from 7.42 to 20.94%, and the relative standard deviation for reproducibility (RSDR) ranged from 16.34 to 29.17%. The method showed acceptable within-laboratory and between-laboratories precision for green coffee materials, as evidenced by HorRat values of ≤0.85, at the studied range, for spiked and naturally contaminated materials. The mean recovery was 92.8% for green coffee material spiked with OTA at a level of 4.82 ng/g.
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Affiliation(s)
- Eugênia Azevedo Vargas
- Ministério da Agricultura, Pecuária e Abastecimento, Laboratório de Controle de Qualidade e Segurança Alimentar, Av. Raja Gabaglia, 245, Cidade Jardim, Belo Horizonte, MG, CEP:30380-090, Brazil
| | - Eliene Alves dos Santos
- Ministério da Agricultura, Pecuária e Abastecimento, Laboratório de Controle de Qualidade e Segurança Alimentar, Av. Raja Gabaglia, 245, Cidade Jardim, Belo Horizonte, MG, CEP:30380-090, Brazil
| | - Alain Pittet
- Nestlé Research Center, Vers-chez-les-Blanc, PO Box 44, CH-1000 Lausanne 26, Switzerland
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Deguchi T, Hashizume H, Nakajima M, Teraguchi M, Akune T, Yamada H, Tanaka S, Yoshimura N, Nojima M, Yoshida M, Ikegawa S. A population-based study identifies an association of THBS2 with intervertebral disc degeneration. Osteoarthritis Cartilage 2019; 27:1501-1507. [PMID: 31233787 DOI: 10.1016/j.joca.2019.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 05/26/2019] [Accepted: 06/03/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To clarify the genetic mechanisms underlying intervertebral disc degeneration (IDD), we examined the associations between single-nucleotide polymorphisms (SNPs) and indicated as coefficient of interaction term (IDD) in a general population in Japan. METHODS This was a cross-sectional study. In 1,605 participants, C2-3 to L5/S1 in the total spine magnetic resonance imaging (MRI) were evaluated using the Pfirrmann's scoring system. Disc scores of 4 and 5 were defined as IDD. Eight SNPs in eight genes associated with IDD were examined at each disc level, considering the non-genetic risk factors of age, sex, and body mass index (BMI). RESULTS The highest odds ratio was found for rs9406328 in the THBS2 gene at disc level T12-L1 (OR 1.27, 95%CI 1.05 to 1.53), and this association was strengthened after adjustment for age using logistic regression (OR 1.37, 95%CI 1.12 to 1.67). Among participants aged <50 years and 50-59, the average IDD score in those with 2 risk alleles of rs9406328 was markedly higher than in those with 0 or 1 risk allele, and the difference is much wider than the elderly participants. It indicates the genetic effect of rs9406328 is stronger in the younger age groups. Finally, multiple linear regression analyses of the association between rs9406328 and IDD, adjusted for age, sex, and BMI at each disc level, showed a statistical interaction between age and the number of risk alleles at C7-T1, T3-4 and T4-T5 as well as T12-L1. CONCLUSION CONCLUSION: The association between rs9406328 in THBS2 and IDD was replicated. The contributions of genetic and environmental factors to IDD differed by disc level.
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Affiliation(s)
- T Deguchi
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - H Hashizume
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan.
| | - M Nakajima
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan
| | - M Teraguchi
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - T Akune
- Rehabilitation Services Bureau, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Japan
| | - H Yamada
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - S Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - N Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Nojima
- Biostatistics & Data Management, Center for Translational Research, The Institute of Medical Science Hospital, The University of Tokyo, Tokyo, Japan
| | - M Yoshida
- Department of Orthopaedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - S Ikegawa
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan.
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Sato T, Nakajima M, Takeishi Y. MON-PO582: Effect of High Intensity Practice on the Body Composition to High-Carbohydrate Diet in Japanese Sumo Wrestling. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32415-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Takeishi Y, Nakajima M, Sato T. MON-PO583: Analysis of Relationship Between Blood Examination and Body Composition in Over 35 of BMI. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32416-1] [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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40
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Sakurai H, Morishima Y, Ishii Y, Yoshida K, Nakajima M, Tsunoda Y, Hayashi SY, Kiwamoto T, Matsuno Y, Kawaguchi M, Yamamoto M, Hizawa N. Sulforaphane ameliorates steroid insensitivity through an Nrf2-dependent pathway in cigarette smoke-exposed asthmatic mice. Free Radic Biol Med 2018; 129:473-485. [PMID: 30312763 DOI: 10.1016/j.freeradbiomed.2018.10.400] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/28/2018] [Accepted: 10/02/2018] [Indexed: 12/17/2022]
Abstract
Oxidative stress induced by cigarette smoke and other environmental pollutants contributes to refractory asthma. To better understand the role of smoking in asthma, we investigated the effects of cigarette smoke on allergic airway responses in mice and examined expression of nuclear factor-E2-related factor-2 (Nrf2) and its downstream factors, because Nrf2 is known to play a pivotal role in antioxidant responses. OVA-sensitized and challenged BALB/c mice were exposed to cigarette smoke and then treated with dexamethasone, sulforaphane (an activator of Nrf2), or their combination. Upon exposure to cigarette smoke, Nrf2 and associated transcripts were upregulated in response to oxidative stress, and asthmatic responses were steroid resistant. In OVA-sensitized and challenged mice exposed to cigarette smoke and treated with sulforaphane, Nrf2-mediated antioxidant responses were upregulated to a greater extent, and steroid sensitivity of asthmatic responses was restored. Moreover, the expression and activity of histone deacetylase 2 (HDAC2), a key regulator of steroid responsiveness, was reduced in mice exposed to cigarette smoke, but restored by sulforaphane treatment. No effects of sulforaphane were observed in Nrf2-deficient mice. These findings indicate that cigarette smoke induces steroid unresponsiveness in asthmatic airways, and that sulforaphane restores steroid sensitivity via upregulation of Nrf2 and enhancement of HDAC2 expression and activity. Thus, Nrf2 may serve as a potential molecular target for cigarette smoke-related refractory asthma resistant to steroid therapy.
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Affiliation(s)
- Hirofumi Sakurai
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yuko Morishima
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan.
| | - Yukio Ishii
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Kazufumi Yoshida
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Masayuki Nakajima
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yoshiya Tsunoda
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Shih-Yuan Hayashi
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Takumi Kiwamoto
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yosuke Matsuno
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Mio Kawaguchi
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, 2-1 Seiryo-cho, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
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Nakajima M, Sato T, Takeishi Y. Effect of short term and high intensity exercise on metabolic function. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1929] [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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Sato T, Nakajima M. Effect of body composition intake nano high-fiber in rats. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1945] [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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Qiu HS, Kato K, Hirota K, Sarukura N, Yoshimura M, Nakajima M. Layer thickness dependence of the terahertz emission based on spin current in ferromagnetic heterostructures. Opt Express 2018; 26:15247-15254. [PMID: 30114774 DOI: 10.1364/oe.26.015247] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 05/27/2018] [Indexed: 06/08/2023]
Abstract
The emission with a bandwidth of 1.5 terahertz based on the spin current in the ferromagnetic heterostructure Co/Pt is demonstrated. The spin transient launched by the NIR femtosecond laser pulse in the Co/Pt is converted into the in-plane charge current due to the inverse spin Hall effect, which gives rise to the terahertz emission towards free space. The dependence of the terahertz emission on the Pt-layer thickness is investigated. To optimize the geometry structure of the new type of emitter, we developed the theoretical model by carefully analyzing the spin transport. Our model reveals the importance to take into account the interfacial spin loss. It can be used to analyze more complex heterostructures.
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Nakajima M, Kawaguchi M, Matsuyama M, Ota K, Fujita J, Matsukura S, Huang SK, Morishima Y, Ishii Y, Satoh H, Sakamoto T, Hizawa N. Transcription Elongation Factor P-TEFb Is Involved in IL-17F Signaling in Airway Smooth Muscle Cells. Int Arch Allergy Immunol 2018; 176:83-90. [PMID: 29649811 DOI: 10.1159/000488154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/06/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND IL-17F is involved in the pathogenesis of several inflammatory diseases, including asthma and COPD. However, the effects of steroids on the function of IL-17F signaling mechanisms are largely unknown. One of the transcription elongation factors, positive transcription elongation factor b (P-TEFb) composed of cyclin T1 and cyclin-dependent kinase 9 (CDK9), is known as a novel checkpoint regulator of gene expression via bromodomain-containing protein 4 (Brd4). METHODS Human airway smooth muscle cells were stimulated with IL-17F and the expression of IL-8 was evaluated by real-time PCR and ELISA. Next, the phosphorylation of CDK9 was determined by Western blotting. The CDK9 inhibitor and short interfering RNAs (siRNAs) targeting Brd4, cyclin T1, and CDK9 were used to identify the effect on IL-17F-induced IL-8 expression. Finally, the effect of steroids and its signaling were evaluated. RESULTS IL-17F markedly induced the transcription of the IL-8 gene and the expression of the protein. Pretreatment of CDK9 inhibitor and transfection of siRNAs targeting CDK9 markedly abrogated IL-17F-induced IL-8 production. Transfection of siRNAs targeting Brd4 and cyclin T1 diminished IL-17F-induced phosphorylation of CDK9 and IL-8 production. Moreover, budesonide decreased CDK9 phosphorylation and markedly inhibited IL-17F-induced IL-8 production. CONCLUSIONS This is the first report that P-TEFb is involved in IL-17F-induced IL-8 expression and that steroids diminish it via the inhibition of CDK9 phosphorylation. IL-17F and P-TEFb might be novel therapeutic targets for airway inflammatory diseases.
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Affiliation(s)
- Masayuki Nakajima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Mio Kawaguchi
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masashi Matsuyama
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Kyoko Ota
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Junichi Fujita
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Satoshi Matsukura
- Respiratory Disease Center, Showa University Northern Yokohama Hospital, Kanagawa, Japan
| | - Shau-Ku Huang
- Johns Hopkins University, Asthma and Allergy Center, Baltimore, Maryland, USA.,National Health Research Institutes, Taiwan, Taiwan
| | - Yuko Morishima
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yukio Ishii
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Hiroaki Satoh
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Tohru Sakamoto
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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Tabeta K, Hosojima M, Nakajima M, Miyauchi S, Miyazawa H, Takahashi N, Matsuda Y, Sugita N, Komatsu Y, Sato K, Ishikawa T, Akiishi K, Yamazaki K, Kato K, Saito A, Yoshie H. Increased serum PCSK9, a potential biomarker to screen for periodontitis, and decreased total bilirubin associated with probing depth in a Japanese community survey. J Periodontal Res 2018. [DOI: 10.1111/jre.12533] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- K. Tabeta
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - M. Hosojima
- Department of Clinical Nutrition Science; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - M. Nakajima
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - S. Miyauchi
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - H. Miyazawa
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - N. Takahashi
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - Y. Matsuda
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - N. Sugita
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - Y. Komatsu
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - K. Sato
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
| | - T. Ishikawa
- Division of Clinical Nephrology and Rheumatology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - K. Akiishi
- Reagent R&D Department; Denka Seiken Co., Ltd.; Niigata Japan
| | - K. Yamazaki
- Laboratory of Periodontology and Immunology; Department of Oral Health and Welfare; Faculty of Dentistry; Niigata University; Niigata Japan
| | - K. Kato
- Department of Laboratory Medicine and Clinical Epidemiology for Prevention of Noncommunicable Diseases; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - A. Saito
- Department of Applied Molecular Medicine; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
| | - H. Yoshie
- Division of Periodontology; Department of Oral Biological Science; Niigata University Graduate School of Medical and Dental Science; Niigata Japan
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Nagahashi M, Yamada A, Aoyagi T, Huang WC, Terracina KP, Hait N, Allegood JC, Tsuchida J, Nakajima M, Katsuta E, Milstien S, Wakai T, Spiegel S, Takabe K. Abstract P1-01-06: Targeting the SphK1/S1P/S1PR1 axis that connects obesity, chronic inflammation, and breast cancer metastasis. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p1-01-06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Obesity with associated inflammation is now recognized as a risk factor for breast cancer and increased incidence of distant metastases. However, the link between obesity and breast cancer progression remains poorly understood. There is growing evidence that sphingosine-1-phosphate (S1P), a pleiotropic bioactive sphingolipid metabolite enriched both in blood and lymphatic fluid is involved in inflammation, obesity, and breast cancer progression. Our hypothesis is that obesity increases levels of S1P in both tumor and its microenvironment, which play a role in obesity-induced inflammation and breast cancer metastasis. The aim of this study is to test this hypothesis in in vitro and in vivo as well as patient settings.
Methods: Levels of sphingolipids including S1P in serum from breast cancer patients were quantified. Orthotopically-implanted E0771 syngeneic breast cancer and MMTV-PyMT transgenic breast cancer mouse models were used. Mice were fed with normal or high-fat diet (HFD). FTY720 was administered orally (1 mg/kg/day). To examine pre-metastatic niche formation, a mouse model utilizing tail vein injection of E0771 cells was used. In this model, mice were treated with conditioned media from E0771 breast cancer cells overexpressing SphK1 (K1-CM) or that from E0771 cells cultured with the vector control (CT-CM), prior to tail vein injections of naive E0771 cells. S1P levels were determined by electrospray ionization-tandem mass spectrometry.
Results: We found that obesity significantly increased S1P levels in serum from breast cancer patients. In animal breast cancer models, HFD upregulated expression of sphingosine kinase 1 (SphK1), the enzyme that produces S1P, and its receptor S1PR1 in syngeneic and spontaneous breast tumors. HFD also significantly increased S1P in breast tumors and in the tumor interstitial fluid, which is a component of the tumor microenvironment and bathes cancer cells in the tumor. Targeting the SphK1/S1P/S1PR1 axis with FTY720/fingolimod attenuated obesity-induced key pro-inflammatory cytokines, macrophage infiltration, and tumor progression. In addition, S1P produced by tumor SphK1 primed lung pre-metastatic niches, increased macrophage recruitment into the lung, and induced IL-6 and signaling pathways important for lung metastatic colonization. FTY720 suppressed HFD-induced lung IL-6 and macrophage infiltration as well as S1P-mediated signaling pathways and dramatically reduced formation of metastatic foci. In tumor bearing mice, FTY720 also suppressed obesity-related inflammation, S1P signaling, pulmonary metastasis, and prolonged survival.
Conclusion: Our results highlight a critical role for circulating S1P produced by tumor and the SphK1/S1P/S1PR1 axis in obesity-related inflammation, metastatic niche formation and breast cancer metastasis and suggest that targeting the SphK1/S1P/S1PR1 axis would be a useful therapeutic for obesity promoted metastatic breast cancer.
Citation Format: Nagahashi M, Yamada A, Aoyagi T, Huang W-C, Terracina KP, Hait N, Allegood JC, Tsuchida J, Nakajima M, Katsuta E, Milstien S, Wakai T, Spiegel S, Takabe K. Targeting the SphK1/S1P/S1PR1 axis that connects obesity, chronic inflammation, and breast cancer metastasis [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-01-06.
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Affiliation(s)
- M Nagahashi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - A Yamada
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - T Aoyagi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - W-C Huang
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - KP Terracina
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - N Hait
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - JC Allegood
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - J Tsuchida
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - M Nakajima
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - E Katsuta
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - S Milstien
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - T Wakai
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - S Spiegel
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
| | - K Takabe
- Niigata University Graduate School of Medical and Dental Sciences, Niigata City, Japan; Virginia Commonwealth University School of Medicine, Richmond, VA; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Baffalo, NY
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Tsuchida J, Nagahashi M, Nakajima M, Takabe K, Wakai T. Abstract P1-01-21: The levels of sphingosine-1-phosphate and its related gene expressions in breast cancer patients. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p1-01-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The bioactive lipid mediator sphingosine-1-phosphate (S1P) has emerged as a key regulatory molecule in cancer progression. We previously demonstrated that S1P is a crucial mediator of breast cancer-induced angiogenesis and lymphangiogenesis, and promote metastasis. Although increasing number of in vitro and in vivo experiments have revealed the importance of S1P in cancer progression, the data on the roles of S1P in human patients are very limited. The aim of this study is to reveal the clinical relevance of S1P in the interaction between cancer and the tumor microenvironment by examining the levels of the sphingolipids in patient breast cancer tissue samples.
Material and Method: Breast cancer tissue, peri-tumor tissue, and normal breast tissue were collected from 20 breast cancer patients immediately after surgery that were conducted from November 2015 to February 2016 at Niigata University Medical and Dental Hospital. Sphingolipids were quantified by liquid chromatography–electrospray ionization tandem mass spectrometry. The expression level of each enzyme-encoding gene involved in S1P production was evaluated by retrieving RNA sequencing and gene expression quantification data from breast cancer tissues (n = 112) and paired normal breast tissues (n = 112) using the Genomics Data Commons (GDC) data portal of the The Cancer Genome Atlas (TCGA) cohort. Gene expression levels were derived using normalization methods provided in the DESeq2 package.
Result: The levels of the sphingolipids sphingosine (Sph), dihydro-sphingosine (DHSph), S1P, and dihydro-S1P (DHS1P) were successfully determined in breast cancer, peri-tumor, and normal breast tissues from all of the 20 patients. As expected, a one-way ANOVA revealed that S1P levels were significantly different depending on the location (F(2,57) = 7.029, P = 0.002). The Tukey post hoc test revealed that S1P levels in tumors were significantly higher than those in normal breast tissue and peri-tumor tissue (P < 0.05). Similarly, Sph and DHSph levels in tumors were significantly higher than in normal breast tissue and peri-tumor tissue. Both SPHK1 and SPHK2 gene expression levels in breast cancer tissue were higher than those in normal breast tissue. Interestingly, expression of some of the S1P-related genes; S1PR3, ABCC1, SGPL1, and ORMDL2, were significantly increased in the breast cancer tissue compared to normal breast tissue. On the other hand, there was significantly decreased expression of the S1P-related genes S1PR1, S1PR2, ABCG2, SPNS2, SGPP1 and ORMDL3, in breast cancer tissue compared to normal breast tissue.
Conclusion: We demonstrated that the major source of S1P is the tumor tissue, and not the peri-tumor tissue despite the fact that angiogenesis and lymphangiogenesis are occurring more in the peri-tumor area, which implicate that S1P may have further role inside the tumor. Our results indicated the complexity of S1P signaling in human cancer than expected based on the results in vivo experiments.
Citation Format: Tsuchida J, Nagahashi M, Nakajima M, Takabe K, Wakai T. The levels of sphingosine-1-phosphate and its related gene expressions in breast cancer patients [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-01-21.
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Affiliation(s)
- J Tsuchida
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Buffalo, NY
| | - M Nagahashi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Buffalo, NY
| | - M Nakajima
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Buffalo, NY
| | - K Takabe
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Buffalo, NY
| | - T Wakai
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan; Roswell Park Cancer Institute, Buffalo, NY; University at Buffalo the State University of New York, Buffalo, NY
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Sonobe T, Shimojima T, Nakamura A, Nakajima M, Uchida S, Kihou K, Lee CH, Iyo A, Eisaki H, Ohgushi K, Ishizaka K. Orbital-anisotropic electronic structure in the nonmagnetic state of BaFe 2(As 1-xP x ) 2 superconductors. Sci Rep 2018; 8:2169. [PMID: 29391431 PMCID: PMC5794914 DOI: 10.1038/s41598-018-20332-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 10/26/2017] [Accepted: 01/16/2018] [Indexed: 12/02/2022] Open
Abstract
High-temperature superconductivity in iron-pnictides/chalcogenides arises in balance with several electronic and lattice instabilities. Beside the antiferromagnetic order, the orbital anisotropy between Fe 3d xz and 3d yz occurs near the orthorhombic structural transition in several parent compounds. However, the extent of the survival of orbital anisotropy against the ion-substitution remains to be established. Here we report the composition (x) and temperature (T) dependences of the orbital anisotropy in the electronic structure of a BaFe2(As1-xP x )2 system by using angle-resolved photoemission spectroscopy. In the low-x regime, the orbital anisotropy starts to evolve on cooling from high temperatures above both antiferromagnetic and orthorhombic transitions. By increasing x, it is gradually suppressed and survives in the optimally doped regime. We find that the in-plane orbital anisotropy persists in a large area of the nonmagnetic phase, including the superconducting dome. These results suggest that the rotational symmetry-broken electronic state acts as the stage for superconductivity in BaFe2(As1-xP x )2.
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Affiliation(s)
- T Sonobe
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan
| | - T Shimojima
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan.
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan.
| | - A Nakamura
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan
| | - M Nakajima
- Department of Physics, Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - S Uchida
- Department of Physics, The University of Tokyo, Bunkyo, Tokyo, 113-0033, Japan
| | - K Kihou
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - C H Lee
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - A Iyo
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - H Eisaki
- National Institute of Advanced Industrial Science and Technology, Tsukuba, 305-8568, Japan
| | - K Ohgushi
- Department of Physics, Tohoku University, Sendai, Miyagi, 980-8578, Japan
| | - K Ishizaka
- Quantum-Phase Electronics Center (QPEC) and Department of Applied Physics, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako, 351-0198, Japan
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Kimihira L, Takahashi Y, Sato H, Iseki C, Suzuki K, Kazui H, Nakajima M, Miyajima M, Arai H, Kuriyama N, Kato T. A hospital-based prospective study on the frequency of developing iNPH among those with asymptomatic ventriculomegaly with features of iNPH on MRI (AVIM). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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