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Mizutani T, Cheung K, Hakobyan Y, Lane H, Decoster L, Karnakis T, Puts M, Calderon O, Jørgensen T, Boulahssass R, Wedding U, Karampeazis T, Banerjee J, Falci C, van Leeuwen B, Fonseca V, Gironés Sarrió R, Dougoud V, Naeim A, Shahrokni A, Kanesvaran R. An Overview of Geriatric Oncology in Global Clinical Practice: a SIOG National Representatives’ Survey. J Geriatr Oncol 2021. [DOI: 10.1016/s1879-4068(21)00464-1] [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: 10/19/2022]
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Araki T, Okumura T, Mizutani T, Kimura Y, Kazama S, Shibata N, Oishi H, Kuwayama T, Hiraiwa H, Kondo T, Morimoto R, Takefuji M, Murohara T. Serum autotaxin level predicts future cardiac events in patients with dilated cardiomyopathy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Autotaxin (ATX) has been reported to promote myocardial inflammation and subsequent cardiac remodeling through lysophosphatidic acid (LPA) production. However, the prognostic impact of ATX has not been clarified in dilated cardiomyopathy (DCM).
Purpose
We aimed to investigate the prognostic impact of ATX in patients with DCM.
Methods
We enrolled 104 DCM patients (49.8 years, 76 males). The subjects underwent blood sampling, echocardiography, cardiac catheterization, and endomyocardial biopsy. Gender differences in serum ATX levels have been reported, thus we divided the subjects into two groups using median serum ATX levels for men and women: High-ATX group and Low-ATX group. All patients were followed up by expert cardiologists. The cardiac event was defined as a composite of cardiac death and hospitalization for worsening heart failure.
Results
Eighty-nine percent of the subjects were classified as New York Heart Association functional class I or II. Female patients had higher serum ATX levels than male patients, with median values of 257.0 ng/mL and 203.5 ng/mL, respectively (Figure A). The average left ventricular ejection fraction and brain natriuretic peptide levels were 30.6% and 122.5 pg/mL. In survival analysis, cumulative event-free probability was significantly lower in High ATX group (p=0.007, Figure B). In Cox proportional hazards analysis, High-ATX was one of the independent predictors of composite cardiac events (Hazards Ratio, 2.575; p=0.043). On the other hand, high sensitive C-reactive protein and collagen volume fraction in myocardial samples were not significant predictors.
Conclusion
High serum ATX level was associated with poor prognosis in patients with DCM.
Funding Acknowledgement
Type of funding sources: None. Gender difference in autotaxin levelsSurvival analysis of cardiac events
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Affiliation(s)
- T Araki
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Okumura
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Mizutani
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - Y Kimura
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - N Shibata
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - H Oishi
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Kuwayama
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - H Hiraiwa
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - R Morimoto
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - M Takefuji
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Graduate School of Medicine, Cardiology, Nagoya, Japan
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Hiraiwa H, Okumura T, Sawamura A, Kondo T, Araki T, Mizutani T, Kazama S, Kimura Y, Shibata N, Oishi H, Kuwayama T, Furusawa K, Morimoto R, Murohara T. Clinical significance of spleen size in patients with heart failure. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The spleen is an important organ that stores blood, releases erythrocytes or monocytes, and destroys no-longer-needed platelets. It can reserve 20–30% of the total blood volume, and its size is reduced in hypovolemic shock. However, the clinical significance of the spleen size in patients with heart failure (HF) remains unclear.
Purpose
The purpose of this study was to investigate the relationship between spleen size, hemodynamic parameters, and prognosis in patients with HF.
Methods
A total of 219 patients with clinically stable HF were enrolled. All patients underwent right heart catheterisation and computed tomography. The spleen size was measured using computed tomography volumetry. In addition, spleen volume was assessed using the spleen volume index (SVI), corrected for body surface area. Cardiac events were composite endpoints of cardiac death, hospitalisation for worsening HF, fatal arrhythmias, implantation of cardiac devices, implantation of left ventricular assist devices, and unexpected percutaneous coronary intervention or cardiac surgery. Spearman's rank correlation coefficient was used to examine the relationship between spleen volume and hemodynamic parameters. Multivariate Cox hazard regression models were used to investigate whether SVI was an independent determinant of cardiac events.
Results
Of the 219 patients (median age, 54 [interquartile range] 46–64 years), 145 (66%) were males. The median (interquartile range) spleen volume and SVI was 118.0 (91.5–156.0) mL and 67.8 (54.9–87.2) mL/m2, respectively. SVI was positively correlated with cardiac output (r=0.269, P<0.001), and negatively correlated with systemic vascular resistance (r=−0.302, P<0.001) (Figure 1). A total of 70 cardiac events were observed, and the optimal cut-off value of SVI for cardiac events was 68.9 mL/m2 in the receiver operating characteristic analysis. Patients were divided into two groups: low-SVI (n=107, <68.9 mL/m2) and high-SVI groups (n=112, ≥68.9 mL/m2). Blood adrenaline concentration was higher in the low-SVI group than in the high-SVI group (0.039 [0.020–0.057] ng/mL vs 0.026 [0.014–0.044] ng/mL, P=0.004). The low-SVI group had more cardiac events than the high-SVI group (log-rank test, P<0.001) (Figure 2). In the multivariate Cox proportional hazard model, the low-SVI group was an independent predictor of cardiac events, even when adjusted for the conventional validated HF risk score, blood catecholamine levels, and hemodynamic parameters.
Conclusion
The spleen size may affect the prognosis in patients with HF, reflecting haemodynamics, including systemic circulating blood volume status and sympathetic nerve activity.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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Affiliation(s)
- H Hiraiwa
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Okumura
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - A Sawamura
- Ichinomiya municipal hospital, Department of Cardiology, Ichinomiya, Japan
| | - T Kondo
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Araki
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Mizutani
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - Y Kimura
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - N Shibata
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - H Oishi
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Kuwayama
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - K Furusawa
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - R Morimoto
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Graduate School of Medicine, Department of Cardiology, Nagoya, Japan
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Shibata N, Hiraiwa H, Kazama S, Kimura Y, Araki T, Mizutani T, Oishi H, Kuwayama T, Kondo T, Morimoto R, Okumura T, Murohara T. Clinical impact of pulmonary artery to aorta diameter ratio on left ventricular reverse remodeling in patients with dilated cardiomyopathy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Left ventricular reverse remodeling (LVRR) is an important predictor for a good prognosis in patients with dilated cardiomyopathy (DCM). Previous reports indicated the pulmonary artery diameter (PAD) to ascending aortic diameter (AoD) ratio as a predictor of adverse outcomes in heart failure patients. However, the impact of the PAD/AoD ratio for predicting LVRR in patients with DCM is unknown.
Aim
The aim of this study is to investigate the association between PAD/AoD ratio and LVRR in patients with DCM.
Methods
From a prospective study, clinically stable DCM patients who were investigated the LVRR on echocardiography and underwent CT at baseline were enrolled. LVRR is defined as left ventricular (LV) ejection fraction increase of 10% and a decrease in indexed LV end-diastolic diameter of 10% compared to those at baseline. PAD and AoD data was collected with nonenhanced computed tomography images at baseline.
Results
In sixty-nine patients (mean age 50.0±13.3 years), the mean LV ejection fraction was 29.8%, and mean LV end-diastolic dimension was 64.5mm, and both of which data was no significant difference between patients with or without LVRR. LVRR was observed in 23 (33.3%) patients. The PAD/AoD ratio was significantly lower in patients with LVRR than without LVRR (81.4% vs. 92.4%, p=0.003). By ROC analysis, the best cut-off for the detection of LVRR was found for a PAD/AoD ratio of 0.9. From multivariate analyses, PAD/AoD ratio was identified as a significant predictor of LVRR. After a median follow-up duration of 2.5 years, the DCM patients with PAD/AoD≥0.9 revealed a significant higher cardiac event than those with PAD/AoD<0.9 (log-rank, p=0.007)
Conclusions
The PAD/AoD ratio is useful for predicting LVRR in patients with DCM. The DCM patients with high PAD/AoD ratio had a poor long-term outcome.
Funding Acknowledgement
Type of funding sources: None. ROC curve for LVRR predictionKaplan-Meier survival curves
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Affiliation(s)
- N Shibata
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - H Hiraiwa
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - S Kazama
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - Y Kimura
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Araki
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Mizutani
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - H Oishi
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Kuwayama
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Kondo
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - R Morimoto
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Okumura
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
| | - T Murohara
- Nagoya University Hospital, Department of cardiology, Nagoya, Japan
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Takei H, Kunitoh H, Wakabayashi M, Kataoka T, Mizutani T, Tsuboi M, Ikeda N, Asamura H, Okada M, Takahama M, Ohde Y, Okami J, Shiono S, Aokage K, Watanabe S. FP01.04 Prospective Observational Study of Activities of Daily Livings in Elderly Patients After Lung Cancer Surgery (JCOG1710A). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.207] [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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6
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Kubo M, Mizutani T, Shimizu K, Matsumoto M, Iizuka K. New methods for determination of the keyhole position in the lateral suboccipital approach to avoid transverse-sigmoid sinus injury: Proposition of the groove line as a new surgical landmark. Neurochirurgie 2021; 67:325-329. [PMID: 33450265 DOI: 10.1016/j.neuchi.2020.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 11/15/2020] [Accepted: 12/25/2020] [Indexed: 11/18/2022]
Abstract
PURPOSE The asterion is frequently used as an anatomical landmark to determine the location of a keyhole in the lateral suboccipital approach used in craniotomies. However, the asterion may not be ideal because of large individual differences among patients. We examined a simple and safe method for determining an optimal keyhole position (KP) using the digastric groove as a new landmark in the lateral suboccipital approach. METHODS Thirty-three patients with trigeminal neuralgia who underwent surgery in our institute between April 2014 and December 2018 were included. The groove line (GL) was designed accurately, extending the digastric groove on the surface of the occipital bone, as the x-axis. The y-axis was depicted from the posterior edge of the digastric groove (the groove point: GP) vertical to the GL. The x-y coordinates represented the distances from GP on each axis. The x-y coordinates of median edge of the transverse-sigmoid sinus (TSJ point), asterion, and the intersection of the GL and transverse sinus (the transverse point: TP) were investigated, based on intraoperative findings and recorded videos. RESULTS The x-y coordinated of the TSJ point were (23.9±3.9, 7.2±3.6). In all patients, the TSJ point was located superior to the GL. The x-y coordinates of the asterion were (27.3±6.0, 8.9±4.1), and in 28 of the 33 patients, their coordinates exceeded the TSJ points. The x-coordinate of the TP was 29.5±4.5, and was located behind the TSJ point on the GL in all patients. The shortest distance between the TSJ points and TP was approximately 3mm. According to these measurements, we decided that the optimal KP would be at 20mm from the GP, subjacent to the GL. CONCLUSIONS Our methods of using the GL as a new surgical landmark for setting the optimal KP is simple, safe, and useful.
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Affiliation(s)
- M Kubo
- Department of neurosurgery, Showa university school of medicine, 1-5-8 Hatanodai, 142-8555 Tokyo, Shinagawa, Japan.
| | - T Mizutani
- Department of neurosurgery, Showa university school of medicine, 1-5-8 Hatanodai, 142-8555 Tokyo, Shinagawa, Japan
| | - K Shimizu
- Department of neurosurgery, Showa university school of medicine, 1-5-8 Hatanodai, 142-8555 Tokyo, Shinagawa, Japan
| | - M Matsumoto
- Department of neurosurgery, Showa university school of medicine, 1-5-8 Hatanodai, 142-8555 Tokyo, Shinagawa, Japan
| | - K Iizuka
- Department of neurosurgery, Showa university school of medicine, 1-5-8 Hatanodai, 142-8555 Tokyo, Shinagawa, Japan
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Kunitoh H, Tsuboi M, Wakabayashi M, Okada M, Suzuki K, Watanabe SI, Asamura H, Fukuda H, Shibata T, Kazato T, Mizutani T, Eba J. A phase III study of adjuvant chemotherapy in patients with completely resected, node-negative non–small cell lung cancer (JCOG 0707). JTCVS Open 2020; 4:90-102. [PMID: 36004301 PMCID: PMC9390442 DOI: 10.1016/j.xjon.2020.08.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 08/16/2020] [Accepted: 08/18/2020] [Indexed: 01/16/2023]
Abstract
Objective To evaluate efficacy of S-1 (tegafur/gimeracil/oteracil), an active novel fluoropyrimidine, as compared to UFT (tegafur/uracil) as a postoperative adjuvant therapy in patients with node-negative non–small cell lung cancer (NSCLC). Methods Eligible patients had undergone complete resection of p-stage I (T1 with tumor diameter >2 cm or T2-N0M0 by 5th edition Union for International Cancer Control TNM) NSCLC, and were randomized to receive oral UFT 250 mg/m2/day for 2 years (Arm A) or oral S-1 80 mg/m2/day for 2 weeks with a 1-week rest period, for 1 year (Arm B). The primary end point was relapse-free survival (RFS), with 80% power and a one-sided type I error of 0.05. Results From November 2008 to December 2013, 963 patients were enrolled (Arm A: 482, Arm B: 481). Toxicities (hematologic/nonhematologic) of grade 3 or more were observed in 15.9 (1.5/14.7)% in Arm A, and in 14.9 (3.6/12.1)% in Arm B, respectively. At data cut-off in December 2018, the hazard ratio for RFS was 1.06 (95% confidence interval, 0.82-1.36), showing no superiority of S-1 over UFT. The hazard ratio of overall survival (OS) was 1.10 (95% confidence interval, 0.81-1.50). The 5-year RFS/OS were 79.4%/88.8% in Arm A and 79.5%/89.7% in Arm B, respectively. The original NSCLC accounted for 58%/53%, respectively, of the Arm A/Arm B OS events. Secondary malignancies were observed in 85 (17.8%) and 84 (17.8%) individuals in Arm A and Arm B, respectively. Conclusions S-1 was not superior to UFT as postoperative adjuvant therapy in node-negative NSCLC. Future investigation should incorporate identification of high-risk populations for recurrence.
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Homma T, Mochizuki Y, Hara M, Kamei S, Mizutani T, Takubo H, Isozaki E, Takahashi M, Komori T, Hao H. Gradient subthalamic neurodegeneration and tau pathology in the hypoglossal nucleus as essential pathological markers of progressive supranuclear palsy - Richardson syndrome. Rev Neurol (Paris) 2020; 176:353-360. [PMID: 32247606 DOI: 10.1016/j.neurol.2019.09.010] [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: 06/03/2019] [Revised: 08/07/2019] [Accepted: 09/12/2019] [Indexed: 10/24/2022]
Abstract
Progressive supranuclear palsy - Richardson syndrome (PSP-RS) was first described in 1964 by Steele et al. Tau pathology has not been reported in the hypoglossal nuclei of PSP-RS patients, whereas Steele et al. described gliosis with no remarkable neuronal losses in the hypoglossal nucleus. This study aimed to investigate the distribution and degree of tau pathology-associated neurodegeneration, with an emphasis on the hypoglossal nucleus, in patients with PSP-RS. Six clinicopathologically proven PSP-RS cases were included in this study. All patients were clinicopathologically and immunohistochemically re-evaluated. This study confirmed the following neuropathological characteristics of PSP-RS: (1) neurodegeneration usually affects the striatonigral system and cerebellar dentate nucleus; (2) the cerebellar afferent system in PSP-RS is affected by absent-to-mild neurodegeneration; and (3) the extent of tau distribution throughout the central nervous system is greater than the extent of neurodegeneration. Furthermore, we found that subthalamic neurodegeneration was more prominent in the ventromedial region than in the dorsolateral region. Nevertheless, the tau pathology showed no remarkable differences between these two sites. Interestingly, the tau pathology was frequently observed in the hypoglossal nuclei of PSP-RS patients. Gradient neurodegeneration of the subthalamus and tau pathology in the hypoglossal nucleus could be regarded as essential pathological features of PSP-RS.
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Affiliation(s)
- T Homma
- Division of Human Pathology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan; Department of Pathology, Ebara Hospital, Tokyo Metropolitan Health and Medical Treatment Corporation, Tokyo, Japan; Department of Neuropathology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan.
| | - Y Mochizuki
- Division of Human Pathology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan; Department of Neurology, Tokyo Metropolitan Kita Medical and Rehabilitation Center for the Disabled, Tokyo, Japan
| | - M Hara
- Department of Neurology, Nihon University School of Medicine, Tokyo, Japan
| | - S Kamei
- Department of Neurology, Nihon University School of Medicine, Tokyo, Japan
| | | | - H Takubo
- Department of Neurology, Ebara Hospital, Tokyo Metropolitan Health and Medical Treatment Corporation, Tokyo, Japan; Cyofu Keijinkai Clinic, Tokyo, Japan
| | - E Isozaki
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - M Takahashi
- Department of Pathology, Ebara Hospital, Tokyo Metropolitan Health and Medical Treatment Corporation, Tokyo, Japan
| | - T Komori
- Department of Neuropathology, Tokyo Metropolitan Neurological Hospital, Tokyo, Japan
| | - H Hao
- Division of Human Pathology, Department of Pathology and Microbiology, Nihon University School of Medicine, Tokyo, Japan
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Ochiai H, Tamukai K, Akabane Y, Oba M, Omatsu T, Okumura A, Mizutani T, Madarame H. An African pygmy hedgehog adenovirus 1 (AhAdV-1) outbreak in an African pygmy hedgehog ( Atelerix albiventris) colony in Japan. Vet Anim Sci 2019; 9:100083. [PMID: 32734101 PMCID: PMC7386706 DOI: 10.1016/j.vas.2019.100083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 08/03/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 11/19/2022] Open
Abstract
A novel adenovirus outbreak occurred in a colony of African pygmy hedgehogs (APHs). An African pygmy hedgehog adenovirus 1 (AhAdV-1) infection was confirmed in 13 APHs. AhAdV-1 was isolated from one APH. Five APHs died during the outbreak and AhAdV-1 can cause fatal pneumonia in a case. AhAdV-1 should be monitored as a potential cause of emerging infections in APHs.
An African pygmy hedgehog adenovirus 1 (AhAdV-1) outbreak in a colony of 24 African pygmy hedgehogs (APHs) with a case of fatal pneumonia occurred in Japan. Thirteen out of a colony of 15 APHs with respiratory symptoms were diagnosed with AhAdV-1 infection based on the detection of AhAdV-1 genome in throat/nasal swabs and further one APH was diagnosed on isolation of the virus. Five infected APHs died during the outbreak and AhAdV-1 caused severe pneumonia and death in one case. After the outbreak, persistent AhAdV-1 infection was suggested in one surviving APH. AhAdV-1 is a novel adenovirus and is suspected to be an emerging pathogen.
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Affiliation(s)
- H Ochiai
- Research Institute of Biosciences, Azabu University, Sagamihara, Kanagawa, 252-5201 Japan
| | - K Tamukai
- Den-en-chofu Animal Hospital, Denenchofu, Ota-ku, Tokyo 145-0071, Japan
| | - Y Akabane
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8538, Japan
| | - M Oba
- Centre for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, United States
| | - T Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8538, Japan
| | - A Okumura
- Centre for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY 10032, United States
| | - T Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8538, Japan
| | - H Madarame
- Veterinary Teaching Hospital, Azabu University, Sagamihara, Kanagawa 252-5201, Japan
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10
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Matsuoka A, Tsubata Y, Mizutani T, Takahashi M, Shimodaira H, Hamamoto Y, Nagashima F, Ando Y. DEVELOPMENT AND DISTRIBUTION OF THE JAPANESE EDITION OF SIOG EDUCATIONAL MATERIALS. J Geriatr Oncol 2019. [DOI: 10.1016/s1879-4068(19)31310-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Arimoto T, Takahiro K, Toita T, Kobayashi H, Machida R, Mizutani T, Onda T, Mizuno M, Yokota H, Kamiura S, Takehara K, Takano H, Saito T, Mandai M, Satoh T, Yamaguchi S, Nakamura T, Ushijima K, Aoki D, Yaegashi N. Spread of tumour and adverse events after modified radical hysterectomy for FIGO Stage IB1 cervical cancer patients with tumour diameter preoperatively estimated 2 cm or less: Japan Clinical Oncology Group trial (JCOG1101); exploratory analysis before primary analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz250.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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12
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Masaki H, Kikuchi N, Mizutani T, Okano Y. 322 The Role of carbonylated proteins in corneocytes on skin barrier function. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.398] [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: 11/16/2022]
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13
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Morita S, Ando T, Maeno A, Mizutani T, Mase M, Shigenobu S, Niimi T. Precise staging of beetle horn formation in Trypoxylus dichotomus reveals the pleiotropic roles of doublesex depending on the spatiotemporal developmental contexts. PLoS Genet 2019; 15:e1008063. [PMID: 30969957 PMCID: PMC6457530 DOI: 10.1371/journal.pgen.1008063] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 03/03/2019] [Indexed: 11/19/2022] Open
Abstract
Many scarab beetles have sexually dimorphic exaggerated horns that are an evolutionary novelty. Since the shape, number, size, and location of horns are highly diverged within Scarabaeidae, beetle horns are an attractive model for studying the evolution of sexually dimorphic and novel traits. In beetles including the Japanese rhinoceros beetle Trypoxylus dichotomus, the sex differentiation gene doublesex (dsx) plays a crucial role in sexually dimorphic horn formation during larval-pupal development. However, knowledge of when and how dsx drives the gene regulatory network (GRN) for horn formation to form sexually dimorphic horns during development remains elusive. To address this issue, we identified a Trypoxylus-ortholog of the sex determination gene, transformer (tra), that regulates sex-specific splicing of the dsx pre-mRNA, and whose loss of function results in sex transformation. By knocking down tra function at multiple developmental timepoints during larval-pupal development, we estimated the onset when the sex-specific GRN for horn formation is driven. In addition, we also revealed that dsx regulates different aspects of morphogenetic activities during the prepupal and pupal developmental stages to form appropriate morphologies of pupal head and thoracic horn primordia as well as those of adult horns. Based on these findings, we discuss the evolutionary developmental background of sexually dimorphic trait growth in horned beetles. Beetles in the family Scarabaeidae have various types of horns on their heads and thoraces, and the shape, size, number, and location of these horns are highly diversified within the group. In addition, many scarab beetle horns are sexually dimorphic. The acquisition of these evolutionarily novel horns, and the mechanisms for the diversification of these structures is an interesting question. To address this question, we focused on the rhinoceros beetle Tripoxylus dichotomus. Here we identified the exact developmental timepoints during which the morphological sexual dimorphism of horn primordia appears, estimated the onset of the developmental program for sexually dimorphic horn formation driven by doublesex, and revealed that doublesex regulates different aspects of cell activities during horn formation depending on particular spatiotemporal developmental contexts. Our study provides insights into regulatory shifts in these mechanisms during the evolution of sexually dimorphic traits in horned beetles.
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Affiliation(s)
- Shinichi Morita
- Division of Evolutionary Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Japan
| | - Toshiya Ando
- Division of Evolutionary Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 38 Nishigonaka, Myodaiji, Okazaki, Japan
| | - Akiteru Maeno
- Mammalian Genetics Laboratory, Genetic Strains Research Center, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Takeshi Mizutani
- Division of Evolutionary Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Japan
| | - Mutsuki Mase
- Division of Evolutionary Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Japan
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
| | - Shuji Shigenobu
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 38 Nishigonaka, Myodaiji, Okazaki, Japan
- NIBB Core Research Facilities, National Institute for Basic Biology, 38 Nishigonaka Myodaiji, Okazaki, Japan
| | - Teruyuki Niimi
- Division of Evolutionary Developmental Biology, National Institute for Basic Biology, 38 Nishigonaka, Myodaiji, Okazaki, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), 38 Nishigonaka, Myodaiji, Okazaki, Japan
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, Japan
- * E-mail:
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Hojo T, Masuda N, Shibata T, Mizutani T, Shien T, Kinoshita T, Iwatani T, Kanbayashi C, Kitagawa D, Tsuneizumi M, Iwata H. Abstract OT2-01-05: A randomized controlled trial comparing post-operative intensive follow-up with standard follow-up in high-risk breast cancer patients (JCOG1204: INSPIRE). Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-ot2-01-05] [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 standard follow-up after surgery for breast cancer includes periodic interviews, clinical examinations, and mammography, but many institutions are conducting intensive follow-up including periodic computed tomography(CT), magnetic resonance imaging(MRI), and bone scintigraphy in the world, despite the lack of evidence to support this approach. While intensive follow-up may contribute to prolonged survival through earlier diagnosis and treatment of relapse, it has the disadvantages of high effort and costs placed on patients(pts) and healthcare workers, radiation exposure for imaging examinations, and overtreatment owing to false-positive results. Although past two randomized trials could not show significant difference in overall survival (OS), as imaging methods have remarkably improved, leading to the earlier detection of relapse, and medical therapies have remarkably improved in recent years, randomized controlled trials are needed to confirm whether intensive follow-up can really prolong survival sufficiently to offset these disadvantages in high-risk breast cancer pts.
Trial design: This study is a multi-institutional two-arm open label randomized controlled phase III trial being conducted with the participation of 42 hospitals belonging to the Breast Cancer Study Group of Japan Clinical Oncology Group. Eligible pts are randomized either to the intensive follow-up group or to the standard follow-up group; the former will undergo physical examination, bone scintigraphy, chest and abdominal CT, brain MRI/CT and frequent tumor markers, whereas the latter will undergo physical examination at the same frequency and tumor markers will be evaluated once a year. Mammography once a year is planned for both groups. This trial has been registered at the UMIN Clinical Trials Registry as UMIN000012429.
Eligibility criteria: High-risk breast cancer pts, who are expected to have recurrence rates of over 30% within 5 years after surgery. The main inclusion criteria are as follows: four or more axillary nodal metastases in the estrogen receptor (ER) positive pts without neoadjuvant chemotherapy(NC)., axillary node metastases in ER-negative pts without NC, axillary nodal metastases in ER-positive pts with NC, histologically proven residual invasive cancer in the breast or axilla in ER-negative with NC.
Specific Aims: The primary endpoint is OS, and secondary endpoints are disease-free survival, relapse-free survival, distant metastasis–free survival, OS in intrinsic subtypes, actual number of implemented examinations, compliance with pre-specified examinations, and adverse events.
Statistical methods: The primary endpoint will require a total of 538 events to be assessed in order to obtain a statistical power of 80% with a one-sided significance level of 0.05. Thus, the planned sample size to compare the two survival curves is set at 1500 pts, assuming an accrual time of 6 years and a follow-up time of 7 years according to the Schoenfeld and Richter's method.
Present accrual and target accrual: The trial was activated in November 2013. 773 pts have been enrolled by the end of June 2018.
Contact: Principal investigator Takashi Hojo MD tahojo@east.ncc.go.jp
Citation Format: Hojo T, Masuda N, Shibata T, Mizutani T, Shien T, Kinoshita T, Iwatani T, Kanbayashi C, Kitagawa D, Tsuneizumi M, Iwata H. A randomized controlled trial comparing post-operative intensive follow-up with standard follow-up in high-risk breast cancer patients (JCOG1204: INSPIRE) [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr OT2-01-05.
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Affiliation(s)
- T Hojo
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - N Masuda
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Shibata
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Mizutani
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Shien
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Kinoshita
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - T Iwatani
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - C Kanbayashi
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - D Kitagawa
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - M Tsuneizumi
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
| | - H Iwata
- National Cancer Center Hospital East, Chiba, Japan; NHO Osaka National Hospital, Osaka, Japan; National Cancer Center Hospital, Tokyo, Japan; Okayama University Hospital, Okayama, Japan; St. Marianna University School of Medicine, Kanagawa, Japan; Niigata Cancer Center, Niigata, Japan; Cancer Institute Hospital, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Aichi Cancer Center Hospital, Nagoya, Japan
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Strasser P, Abe M, Aoki M, Choi S, Fukao Y, Higashi Y, Higuchi T, Iinuma H, Ikedo Y, Ishida K, Ito T, Ito TU, Iwasaki M, Kadono R, Kamigaito O, Kanda S, Kawagoe K, Kawall D, Kawamura N, Kitaguchi M, Koda A, Kojima KM, Kubo K, Matama M, Matsuda Y, Matsudate Y, Mibe T, Miyake Y, Mizutani T, Nagamine K, Nishimura S, Ogitsu T, Saito N, Sasaki K, Seo S, Shimizu HM, Shimomura K, Suehara T, Tajima M, Tanaka KS, Tanaka T, Tojo J, Tomono D, Torii HA, Torikai E, Toyoda A, Tsutsumi Y, Ueno K, Ueno Y, Yagi D, Yamamoto A, Yamanaka T, Yamazaki T, Yasuda H, Yoshida M, Yoshioka T. New precise measurements of muonium hyperfine structure at J-PARC MUSE. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201919800003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
High precision measurements of the ground state hyperfine structure (HFS) of muonium is a stringent tool for testing bound-state quantum electrodynamics (QED) theory, determining fundamental constants of the muon magnetic moment and mass, and searches for new physics. Muonium is the most suitable system to test QED because both theoretical and experimental values can be precisely determined. Previous measurements were performed decades ago at LAMPF with uncertainties mostly dominated by statistical errors. At the J-PARC Muon Science Facility (MUSE), the MuSEUM collaboration is planning complementary measurements of muonium HFS both at zero and high magnetic field. The new high-intensity muon beam that will soon be available at H-Line will provide an opportunity to improve the precision of these measurements by one order of magnitude. An overview of the different aspects of these new muonium HFS measurements, the current status of the preparation for high-field measurements, and the latest results at zero field are presented.
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Urakawa H, Nishida Y, Mitsuma A, Maeda O, Sugishita M, Shimokata T, Mizutani T, Arai E, Ikuta K, Hamada S, Ota T, Ishiguro N, Ando Y. Outpatient chemotherapy for patients with unresectable or metastatic bone sarcomas. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy374.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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17
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Shimomura A, Tamura K, Mizutani T, Shibata T, Hara F, Fujisawa T, Niikura N, Hojo T, Kambayashi C, Saji S, Masuda N, Sawaki M, Yamamoto N, Nagashima F, Shien T, Iwata H. A phase III study comparing trastuzumab emtansine with trastuzumab, pertuzumab, and docetaxel in elderly patients with advanced stage HER2-positive breast cancer (JCOG1607 HERB TEA study). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy272.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Kawamura M, Hirano Y, Yoshida M, Mizutani T, Sugitani K, Yasukawa T, Ogura Y. Six-month results of intravitreal ranibizumab for macular edema after branch retinal vein occlusion in a single-center prospective study: visual outcomes and microaneurysm formation. Clin Ophthalmol 2018; 12:1487-1494. [PMID: 30154646 PMCID: PMC6108404 DOI: 10.2147/opth.s170698] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Purpose The aim of this study is to report the 6-month results after one intravitreal ranibizumab (IVR) injection followed by pro re nata dosing for macular edema (ME) after branch retinal vein occlusion. Patients and methods The inclusion criteria included a minimal patient age of 18 years, 20 letters or more best-corrected visual acuity (BCVA) (Early Treatment Diabetic Retinopathy Study [ETDRS] score, 77 letters or less), and central retinal thickness (CRT) of 250 microns or more. The primary outcome measure was the mean BCVA change from baseline at month 6; the secondary outcomes were mean changes in CRT, residual ME, and microaneurysm formation. Results Twenty patients were enrolled from March 2014 through October 2016 at Nagoya City University Hospital. The baseline mean ETDRS letters and CRT were 63.1 and 500 microns, respectively; mean time from symptom onset to initial therapy was 1.80 months; and mean ETDRS gain and CRT reduction were 15.2 letters and 230 microns, respectively. The percentages of patients with Snellen equivalent BCVAs of 20/40 (70 ETDRS letters) or better and 20/20 (85 ETDRS letters) were 90% and 15%, respectively. Residual ME and microaneurysms were observed in 85% and 35% of patients. Microaneurysm formation was associated with delayed initial therapy. Conclusion Prompt initiation of IVR injection provided a better visual prognosis at month 6 and suppressed the microaneurysm formation.
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Affiliation(s)
- Mihoko Kawamura
- Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan,
| | - Yoshio Hirano
- Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan,
| | - Munenori Yoshida
- Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan,
| | - Takeshi Mizutani
- Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan,
| | - Kazuhiko Sugitani
- Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan,
| | - Tsutomu Yasukawa
- Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan,
| | - Yuichiro Ogura
- Department of Ophthalmology & Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan,
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Mizutani T, Umemoto N, Taniguchi T, Ishii H, Murohara T, Shimizu K. P4664Lactate clearance is one of the most powerful prognostic indicators in extracorporeal cardiopulmonary resuscitation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T Mizutani
- ichinomiya municipal hospital, department of cardiology, ichinomiya, Japan
| | - N Umemoto
- ichinomiya municipal hospital, department of cardiology, ichinomiya, Japan
| | - T Taniguchi
- ichinomiya municipal hospital, department of cardiology, ichinomiya, Japan
| | - H Ishii
- Nagoya University Hospital, Nagoya, Japan
| | - T Murohara
- Nagoya University Hospital, Nagoya, Japan
| | - K Shimizu
- ichinomiya municipal hospital, department of cardiology, ichinomiya, Japan
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Madarame H, Saito M, Ogihara K, Ochiai H, Oba M, Omatsu T, Tsuyuki Y, Mizutani T. Mycobacterium avium Subsup. hominissuis Meningoencephalitis in a Cat. J Comp Pathol 2018. [DOI: 10.1016/j.jcpa.2017.10.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mekata H, Yamamoto M, Hamabe S, Tanaka H, Omatsu T, Mizutani T, Hause BM, Okabayashi T. Molecular epidemiological survey and phylogenetic analysis of bovine influenza D virus in Japan. Transbound Emerg Dis 2017; 65:e355-e360. [PMID: 29143492 DOI: 10.1111/tbed.12765] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Indexed: 12/15/2022]
Abstract
The influenza D virus, a new member of the Orthomyxoviridae family, is predominantly found in cattle. Although viral pathology and clinical disease in cattle appear mild, this virus plays an important role as a trigger of bovine respiratory disease (BRD). BRD is a costly illness worldwide. Thus, epidemiological surveys of the influenza D virus are necessary. Here, we conducted a molecular epidemiological survey for the influenza D virus in healthy and respiratory-diseased cattle in Japan. We found that 2.1% (8/377) of the cattle were infected with influenza D. The cattle with and without respiratory symptoms had approximately equal amounts of the virus. A full-genome sequence analysis revealed that the influenza D virus that was isolated in Japan formed an individual cluster that was distinct from the strains found in other countries. These results suggest that this virus might have evolved uniquely in Japan over a long period of time and that the viral pathology of Japanese strains might be different from the strains found in other countries. Continuous surveillance is required to determine the importance of this virus and to characterize its evolution.
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Affiliation(s)
- H Mekata
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki, Japan.,Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - M Yamamoto
- Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki, Japan
| | - S Hamabe
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - H Tanaka
- Center for the Promotion of Institutional Research, University of Miyazaki, Miyazaki, Japan
| | - T Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - T Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - B M Hause
- Department of Diagnostic Medicine and Pathobiology, Kansas State University, Manhattan, KS, USA
| | - T Okabayashi
- Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
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Maeda O, Yokoyama Y, Yamaguchi J, Ota A, Matsuoka A, Morita S, Inoue M, Mizutani T, Shimokata T, Urakawa H, Mitsuma A, Nagino M, Ando Y. Real-world experience with FOLFIRINOX and gemcitabine plus nab-paclitaxel in the treatment of pancreatic cancer in Japan. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx660.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mizutani T, Magome T, Igaki H, Haga A, Nawa K, Sekiya N, Nakagawa K. Survival Time Prediction after Radiotherapy for Malignant Glioma Patients Based on Clinical and DVH Features Using Support Vector Machine. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Oikawa J, Niwano S, Fukaya H, Horiguchi A, Nishinarita R, Muramatsu Y, Nakamura H, Satoh A, Kishihara J, Mizutani T, Takeuchi I, Asari Y, Ako J. P2759A novel scoring system for neurological outcomes in patients receiving thrapeutic hypothermia cardiopulmonary arrest. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Ozone D, Mizutani T, Nozaki M, Ohbayashi M, Hasegawa N, Kato A, Yasukawa T, Ogura Y. Tissue Plasminogen Activator as an Antiangiogenic Agent in Experimental Laser-Induced Choroidal Neovascularization in Mice. Invest Ophthalmol Vis Sci 2017; 57:5348-5354. [PMID: 27727399 DOI: 10.1167/iovs.16-19617] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose We investigate the antiangiogenic efficacy of tissue plasminogen activator (tPA) on experimental laser-induced choroidal neovascularization (CNV) in mice. Methods After CNV was induced by laser photocoagulation in 92 C57BL/6J wild-type mice, tPA (4 or 40 international units [IU]/μl) or PBS was injected intravitreally immediately after laser injury. Fluorescein angiography was performed on day 7 to grade CNV leakage. The CNV volume was measured by confocal microscopy in eyes enucleated 7 days after laser injury. Immunohistochemical studies were performed 3 days after laser injury to evaluate fibrin/fibrinogen and CD31 expression. The possible adverse effects of tPA were assessed by electroretinography (ERG) and histology on day 7. Results Intravitreal administration of tPA significantly suppressed CNV leakage and CNV volume in a dose-dependent manner (P < 0.01). Intravitreal injection of tPA suppressed fibrin/fibrinogen and CD31 expression in laser-induced lesions. Histologic examination and ERG showed no evidence of retinal toxicity in eyes injected with tPA. Conclusions Intravitreal injection of tPA suppressed fibrin/fibrinogen expression and laser-induced CNV. The current results suggested that tPA may be a potential therapeutic adjuvant for treating CNV.
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Affiliation(s)
- Daisuke Ozone
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takeshi Mizutani
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Miho Nozaki
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Masaharu Ohbayashi
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Norio Hasegawa
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Aki Kato
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Tsutomu Yasukawa
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuichiro Ogura
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Yoshikawa K, Toku H, Masuda K, Mizutani T, Nagafuchi A, Imoto M, Takamatsu T, Nagasaki K. Magnetron Discharge Characteristics for Improvement of an Inertial Electrostatic Confinement Neutron/Proton Source. Fusion Science and Technology 2017. [DOI: 10.13182/fst03-a391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Yoshikawa
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3440
| | - H. Toku
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3442
| | - K. Masuda
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3442
| | - T. Mizutani
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3443
| | - A. Nagafuchi
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3443
| | - M. Imoto
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3443
| | - T. Takamatsu
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3443
| | - K. Nagasaki
- Institute of Advanced Energy Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan +81-774-38-3441
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Muraoka H, Yoshimura C, Tsuji S, Hashimoto A, Mizutani T, Ohkubo S, Matsuo K, Utsugi T, Iwasawa Y. TAS4464, a novel highly potent NEDD8 activating enzyme inhibitor, demonstrates anti-tumor efficacy in rituximab-resistant double-hit lymphoma models. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)33052-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Suzuki A, Watanabe H, Mizutani T, Sato T, Ohta Y, Iguchi T. Global Gene Expression in Mouse Vaginae Exposed to Diethylstilbestrol at Different Ages. Exp Biol Med (Maywood) 2016; 231:632-40. [PMID: 16636312 DOI: 10.1177/153537020623100518] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Estrogens regulate proliferation and differentiation of cells in target organs such as the female reproductive tract. In mature mice, estrogens stimulate cell proliferation, whereas ovariectomy results in atrophy of the female reproductive tract. In contrast, perinatal exposure to estrogens, including diethylstilbestrol (DES), induces persistent, ovary-independent vaginal stratification and cervico-vaginal tumors later in life. These effects are due to altered cell fate following DES exposure during a critical developmental period. The detailed mechanisms underlying the reversible and irreversible cell proliferation in vaginae induced by DES at different ages has not been clarified. Therefore, we examined differences in gene expression pattern using DNA microarray analysis in mouse vaginae 6 hrs after a single injection of 2 μg DES per gram of body weight, and proliferation of vaginal epithelial and stromal cells 24 hrs after the injection at postnatal days (PNDs) 0, 5, 20, and 70. After DES stimulation, vaginal epithelial and stromal cells showed cell proliferation at PNDs 20 and 70, and at PNDs 0 and 5, respectively. DNA microarray analysis exhibited 54 DES-induced genes and 9 DES-repressed genes in vaginae at PND 0, whereas more than 200 DES-induced genes were found in vaginae at PNDs 5 and 20, and 350 genes at PND 70. Clustering analysis of DES-induced genes in the vaginae at different ages revealed that genes induced by DES at PND 5 were closer to the adult type than that of PND 0. Genes related to keratinocyte differentiation, such as Gadd45α, p21, 14–3–3 sigma, small proline-rich protein 2f (Sprr2f), and Krupple-like factor 4 (Klf4), were induced by DES. The number of DES-induced genes during the critical period, PND 0, was smaller than those found after the critical period. These results give insight toward understanding the molecular mechanisms underlying the critical period in mouse vaginae.
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Affiliation(s)
- Atsuko Suzuki
- The United Graduate School of Veterinary Science, Yamaguchi University, 1677-1, Yoshida, Yamaguchi, 753-8515, Japan
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Yatsu R, Katsu Y, Kohno S, Mizutani T, Ogino Y, Ohta Y, Myburgh J, van Wyk JH, Guillette LJ, Miyagawa S, Iguchi T. Characterization of evolutionary trend in squamate estrogen receptor sensitivity. Gen Comp Endocrinol 2016; 238:88-95. [PMID: 27072832 DOI: 10.1016/j.ygcen.2016.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 04/08/2016] [Indexed: 11/29/2022]
Abstract
Steroid hormones are a key regulator of reproductive biology in vertebrates, and are largely regulated via nuclear receptor families. Estrogen signaling is regulated by two estrogen receptor (ER) subtypes alpha and beta in the nucleus. In order to understand the role of estrogen in vertebrates, these ER from various species have been isolated and were functionally analyzed using luciferase reporter gene assays. Interestingly, species difference in estrogen sensitivity has been noted in the past, and it was reported that snake ER displayed highest estrogen sensitivity. Here, we isolated additional ER from three lizards: chameleon (Bradypodion pumilum), skink (Plestiodon finitimus), and gecko (Gekko japonicus). We have performed functional characterization of these ERs using reporter gene assay system, and found high estrogen sensitivity in all three species. Furthermore, comparison with results from other tetrapod ER revealed a seemingly uniform gradual pattern of ligand sensitivity evolution. In silico 3D homology modeling of the ligand-binding domain revealed structural variation at three sites, helix 2, and juncture between helices 8 and 9, and caudal region of helix 10/11. Docking simulations indicated that predicted ligand-receptor interaction also correlated with the reporter assay results, and overall squamates displayed highest stabilized interactions. The assay system and homology modeling system provides tool for in-depth comparative analysis of estrogen function, and provides insight toward the evolution of ER among vertebrates.
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Affiliation(s)
- Ryohei Yatsu
- Department of Basic Biology, Faculty of Life Science, SOKENDAI (Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan.
| | - Yoshinao Katsu
- Graduate School of Life Science and Department of Biological Sciences, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.
| | - Satomi Kohno
- Department of Obstetrics and Gynecology, Medical University of South Carolina, and Marine Biomedicine and Environmental Science Center, Hollings Marine Laboratory, Charleston, SC 29412, USA.
| | - Takeshi Mizutani
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan.
| | - Yukiko Ogino
- Department of Basic Biology, Faculty of Life Science, SOKENDAI (Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan; Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan.
| | - Yasuhiko Ohta
- Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, Koyama, Tottori 680-8553, Japan.
| | - Jan Myburgh
- Department of Paraclinical Sciences, University of Pretoria, Private Bag 04, Onderstepoort 0110, South Africa.
| | - Johannes H van Wyk
- Department of Botany & Zoology, University of Stellenbosch, Stellenbosch 7600, South Africa.
| | - Louis J Guillette
- Department of Obstetrics and Gynecology, Medical University of South Carolina, and Marine Biomedicine and Environmental Science Center, Hollings Marine Laboratory, Charleston, SC 29412, USA
| | - Shinichi Miyagawa
- Department of Basic Biology, Faculty of Life Science, SOKENDAI (Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan; Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan.
| | - Taisen Iguchi
- Department of Basic Biology, Faculty of Life Science, SOKENDAI (Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan; Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan.
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Mizutani T, Yamashita M, Okubo N, Tanaka M, Naito H. Efficacy of Whole Bowel Irrigation Using Solutions with or without Adsorbent in the Removal of Paraquat in Dogs. Hum Exp Toxicol 2016; 11:495-504. [PMID: 1361139 DOI: 10.1177/096032719201100610] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
1 The efficacy of whole bowel irrigation with a solution containing either polyethylene glycol (PEG) with electrolyte or an adsorbent (Kayexalate™) with a cathartic (sorbitol) was investigated in 18 dogs who had been given 250 mg kg -1 paraquat dichloride via a jejunal tube to eliminate the influence of gastric absorption. 2 Plasma paraquat concentrations 2 and 3 h after the initiation of bowel irrigation and at the end of the study (5 h later) were significantly lower in the bowel irrigation groups than in the control (no bowel irrigation) group. 3 The total body clearances of paraquat in the bowel irrigation groups were significantly greater than in the control group. 4 There were no significant differences between the two different irrigation solution groups in plasma paraquat concentration, the area under the plasma concentration time curve and the total body clearance. 5 In the PEG with electrolyte group, about 70% of the administered dose of paraquat was removed by means of bowel irrigation (n=4). 6 The adjunction of the adsorbent had no beneficial effects. 7 Haemodynamic changes associated with whole bowel irrigation were unremarkable except that right atrial and pulmonary arterial pressures were elevated in the latter part of the study.
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Affiliation(s)
- T Mizutani
- Department of Critical Care Medicine, University of Tsukuba, Ibaraki, Japan
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Mitomo S, Omatsu T, Tsuchiaka S, Nagai M, Furuya T, Mizutani T. Activation of c-Jun N-terminal kinase by Akabane virus is required for apoptosis. Res Vet Sci 2016; 107:147-151. [PMID: 27473988 PMCID: PMC7111864 DOI: 10.1016/j.rvsc.2016.06.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 05/02/2016] [Accepted: 06/12/2016] [Indexed: 12/13/2022]
Abstract
Akabane virus (AKAV) belongs to the Simbu serogroup of the genus Orthobunyavirus in the family Bunyaviridae. It has been shown that AKAV induces apoptosis in mammalian cells. It is necessary to understand the signaling pathways involved in AKAV-induced apoptosis to further elucidate the molecular virology of AKAV. c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinase (MAPK) are mediators of apoptosis; therefore, we investigated the roles of JNK and p38 MAPK cascades in AKAV-infected cells. We found that JNK and p38 MAPK as well as their downstream substrates, c-Jun and heat shock protein 27 (HSP27), were phosphorylated in response to AKAV infection. A JNK inhibitor (SP600125) inhibited AKAV-mediated apoptosis whereas a p38 MAPK inhibitor (SB203580) did not. We conclude that AKAV infection activates the JNK and p38 MAPK signaling pathways, and the JNK cascade plays a crucial role in AKAV-induced apoptosis in vitro. JNK and p38 MAPK were phosphorylated in response to Akabane virus infection. Downstream substrates, c-Jun and heat shock protein 27, were also phosphorylated by viral infection. JNK inhibitor (SP600125) inhibited AKAV-mediated apoptosis whereas a p38 MAPK inhibitor (SB203580) did not.
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Affiliation(s)
- S Mitomo
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Saiwai, Fuchu, Tokyo 183-8509, Japan
| | - T Omatsu
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Saiwai, Fuchu, Tokyo 183-8509, Japan
| | - S Tsuchiaka
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Saiwai, Fuchu, Tokyo 183-8509, Japan
| | - M Nagai
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Saiwai, Fuchu, Tokyo 183-8509, Japan
| | - T Furuya
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Saiwai, Fuchu, Tokyo 183-8509, Japan
| | - T Mizutani
- Research and Education Center for Prevention of Global Infectious Disease of Animal, Tokyo University of Agriculture and Technology, Saiwai, Fuchu, Tokyo 183-8509, Japan.
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Tohyama S, Miyagawa S, Lange A, Ogino Y, Mizutani T, Ihara M, Tanaka H, Tatarazako N, Kobayashi T, Tyler CR, Iguchi T. Evolution of estrogen receptors in ray-finned fish and their comparative responses to estrogenic substances. J Steroid Biochem Mol Biol 2016; 158:189-197. [PMID: 26707410 DOI: 10.1016/j.jsbmb.2015.12.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 08/23/2015] [Revised: 12/02/2015] [Accepted: 12/10/2015] [Indexed: 11/23/2022]
Abstract
In vertebrates, estrogens play fundamental roles in regulating reproductive activities through estrogen receptors (ESRs), and disruption of estrogen signaling is now of global concern for both wildlife and human health. To date, ESRs of only a limited number of species have been characterized. We investigated the functional diversity and molecular basis or ligand sensitivity of ESRs among ray-finned fish species (Actinopterygii), the most variable group within vertebrates. We cloned and characterized ESRs from several key species in the evolution of ray-finned fish including bichir (Polypteriformes, ESR1 and ESR2) at the basal lineage of ray-finned fish, and arowana (Osteoglossiformes, ESR1 and ESR2b) and eel (Anguilliformes, ESR1, ESR2a and ESR2b) both belonging to ancient early-branching lineages of teleosts, and suggest that ESR2a and ESR2b emerged through teleost-specific whole genome duplication, but an ESR1 paralogue has been lost in the early lineage of euteleost fish species. All cloned ESR isoforms showed similar responses to endogenous and synthetic steroidal estrogens, but they responded differently to non-steroidal estrogenic endocrine disrupting chemicals (EDCs) (e.g., ESR2a exhibits a weaker reporter activity compared with ESR2b). We show that variation in ligand sensitivity of ESRs can be attributed to phylogeny among species of different taxonomic groups in ray-finned fish. The molecular information provided contributes both to understanding of the comparative role of ESRs in the reproductive biology of fish and their comparative responses to EDCs.
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Affiliation(s)
- Saki Tohyama
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka 422-8526, Japan; Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | - Shinichi Miyagawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan.
| | - Anke Lange
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, United Kingdom
| | - Yukiko Ogino
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | - Takeshi Mizutani
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | - Masaru Ihara
- Research Center for Environmental Quality Management, Kyoto University, Otsu, Shiga 520-0811, Japan
| | - Hiroaki Tanaka
- Research Center for Environmental Quality Management, Kyoto University, Otsu, Shiga 520-0811, Japan
| | - Norihisa Tatarazako
- Center for Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan
| | - Tohru Kobayashi
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | - Charles R Tyler
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, United Kingdom
| | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan.
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Mizutani T, Fowler BJ, Kim Y, Yasuma R, Krueger LA, Gelfand BD, Ambati J. Nucleoside Reverse Transcriptase Inhibitors Suppress Laser-Induced Choroidal Neovascularization in Mice. Invest Ophthalmol Vis Sci 2016; 56:7122-9. [PMID: 26529046 DOI: 10.1167/iovs.15-17440] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
PURPOSE To evaluate the efficacy of nucleoside reverse transcriptase inhibitors (NRTIs) in the laser-induced mouse model of choroidal neovascularization (CNV). METHODS We evaluated the NRTIs lamivudine (3TC), zidovudine (AZT), and abacavir (ABC) and the P2X7 antagonist A438079. Choroidal neovascularization was induced by laser injury in C57BL/6J wild-type, Nlrp3-/-, and P2rx7-/- mice, and CNV volume was measured after 7 days by confocal microscopy. Drugs were administered by intravitreous injection immediately after the laser injury. Vascular endothelial growth factor-A in RPE-choroid lysates was measured 3 days after laser injury by ELISA. HEK293 cells expressing human and mouse P2X7 were exposed to the selective P2X7 receptor agonist 2', 3'-(benzoyl-4-benzoyl)-ATP (Bz-ATP) with or without 3TC, and VEGF-A levels in media were measured by ELISA. RESULTS Intravitreous injection of 3TC, AZT, and ABC significantly suppressed laser-induced CNV in C57BL/6J wild-type and Nlrp3-/- mice (P < 0.05) but not in P2rx7-/- mice. Intravitreous injection of A438079 also suppressed the laser-induced CNV (P < 0.05). The NRTIs 3TC, AZT, and ABC blocked VEGF-A levels in the RPE/choroid after laser injury in wild-type (P < 0.05) but not P2rx7-/- mice. Moreover, there was no additive effect of 3TC on CNV inhibition when coadministered with a neutralizing VEGF-A antibody. Stimulation of human and mouse P2X7-expressing HEK293 cells with Bz-ATP increased VEGF secretion (P < 0.001), which was abrogated by 3TC (P < 0.001). Stimulation of primary human RPE cells with Bz-ATP increased VEGFA and IL6 mRNA levels, which were abrogated by 3TC. CONCLUSIONS Multiple clinically relevant NRTIs suppressed laser-induced CNV and downregulated VEGF-A, via P2X7.
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Affiliation(s)
- Takeshi Mizutani
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, United States
| | - Benjamin J Fowler
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, United States
| | - Younghee Kim
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, United States
| | - Reo Yasuma
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, United States
| | - Laura A Krueger
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, United States
| | - Bradley D Gelfand
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, United States 2Department of Biomedical Engineering, University of Kentucky, Lexington, Kentucky, United States 3Department of Microbiology, Immunology, and Mole
| | - Jayakrishna Ambati
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, United States 4Department of Physiology, University of Kentucky, Lexington, Kentucky, United States
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Bogdanovich S, Kim Y, Mizutani T, Yasuma R, Tudisco L, Cicatiello V, Bastos-Carvalho A, Kerur N, Hirano Y, Baffi JZ, Tarallo V, Li S, Yasuma T, Arpitha P, Fowler BJ, Wright CB, Apicella I, Greco A, Brunetti A, Ruvo M, Sandomenico A, Nozaki M, Ijima R, Kaneko H, Ogura Y, Terasaki H, Ambati BK, Leusen JH, Langdon WY, Clark MR, Armour KL, Bruhns P, Verbeek JS, Gelfand BD, De Falco S, Ambati J. Human IgG1 antibodies suppress angiogenesis in a target-independent manner. Signal Transduct Target Ther 2016; 1. [PMID: 26918197 PMCID: PMC4763941 DOI: 10.1038/sigtrans.2015.1] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aberrant angiogenesis is implicated in diseases affecting nearly 10% of the world’s population. The most widely used anti-angiogenic drug is bevacizumab, a humanized IgG1 monoclonal antibody that targets human VEGFA. Although bevacizumab does not recognize mouse Vegfa, it inhibits angiogenesis in mice. Here we show bevacizumab suppressed angiogenesis in three mouse models not via Vegfa blockade but rather Fc-mediated signaling through FcγRI (CD64) and c-Cbl, impairing macrophage migration. Other approved humanized or human IgG1 antibodies without mouse targets (adalimumab, alemtuzumab, ofatumumab, omalizumab, palivizumab and tocilizumab), mouse IgG2a, and overexpression of human IgG1-Fc or mouse IgG2a-Fc, also inhibited angiogenesis in wild-type and FcγR humanized mice. This anti-angiogenic effect was abolished by Fcgr1 ablation or knockdown, Fc cleavage, IgG-Fc inhibition, disruption of Fc-FcγR interaction, or elimination of FcRγ-initated signaling. Furthermore, bevacizumab’s Fc region potentiated its anti-angiogenic activity in humanized VEGFA mice. Finally, mice deficient in FcγRI exhibited increased developmental and pathological angiogenesis. These findings reveal an unexpected anti-angiogenic function for FcγRI and a potentially concerning off-target effect of hIgG1 therapies.
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Affiliation(s)
- Sasha Bogdanovich
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Younghee Kim
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Takeshi Mizutani
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA; Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Reo Yasuma
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA; Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Laura Tudisco
- Angiogenesis Lab, Institute of Genetics and Biophysics-CNR, Naples, Italy
| | - Valeria Cicatiello
- Angiogenesis Lab, Institute of Genetics and Biophysics-CNR, Naples, Italy; Bio-Ker, MultiMedica Group, Naples, Italy
| | - Ana Bastos-Carvalho
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Nagaraj Kerur
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Yoshio Hirano
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Judit Z Baffi
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Valeria Tarallo
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA; Angiogenesis Lab, Institute of Genetics and Biophysics-CNR, Naples, Italy
| | - Shengjian Li
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Tetsuhiro Yasuma
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Parthasarathy Arpitha
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Benjamin J Fowler
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Charles B Wright
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA
| | - Ivana Apicella
- Angiogenesis Lab, Institute of Genetics and Biophysics-CNR, Naples, Italy
| | - Adelaide Greco
- Department of Advanced Biomedical Sciences, University of Naples 'Federico II', Naples, Italy; CEINGE-Biotecnologie Avanzate, s.c.a.r.l., Naples, Italy
| | - Arturo Brunetti
- Department of Advanced Biomedical Sciences, University of Naples 'Federico II', Naples, Italy; CEINGE-Biotecnologie Avanzate, s.c.a.r.l., Naples, Italy
| | - Menotti Ruvo
- Istituto di Biostrutture e Bioimmagini, CNR, Naples, Italy
| | | | - Miho Nozaki
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Ryo Ijima
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroki Kaneko
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuichiro Ogura
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroko Terasaki
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Balamurali K Ambati
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, Salt Lake City, UT, USA; Department of Ophthalmology, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, UT, USA
| | - Jeanette Hw Leusen
- Immunotherapy Laboratory, Laboratory for Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Wallace Y Langdon
- School of Pathology and Laboratory Medicine, University of Western Australia, Crawley, WA, Australia
| | - Michael R Clark
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, UK
| | - Kathryn L Armour
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge, UK
| | - Pierre Bruhns
- Department of Immunology, Unit of Antibodies in Therapy and Pathology, Institut Pasteur, Paris, France; Institut National de la Santé et de la Recherche Médicale (INSERM) U1222, Paris, France
| | - J Sjef Verbeek
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Bradley D Gelfand
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA; Department of Biomedical Engineering, University of Kentucky, Lexington, KY, USA; Department of Microbiology, Immunology, and Molecular Genetics, University of Kentucky, Lexington, KY, USA
| | - Sandro De Falco
- Angiogenesis Lab, Institute of Genetics and Biophysics-CNR, Naples, Italy; IRCCS MultiMedica, Milano, Italy
| | - Jayakrishna Ambati
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY, USA; Department of Physiology, University of Kentucky, Lexington, KY, USA
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Lange A, Sebire M, Rostkowski P, Mizutani T, Miyagawa S, Iguchi T, Hill EM, Tyler CR. Environmental chemicals active as human antiandrogens do not activate a stickleback androgen receptor but enhance a feminising effect of oestrogen in roach. Aquat Toxicol 2015; 168:48-59. [PMID: 26440146 DOI: 10.1016/j.aquatox.2015.09.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/16/2015] [Accepted: 09/22/2015] [Indexed: 05/22/2023]
Abstract
Sexual disruption is reported in wild fish populations living in freshwaters receiving discharges of wastewater treatment works (WwTW) effluents and is associated primarily with the feminisation of males by exposure to oestrogenic chemicals. Antiandrogens could also contribute to the feminisation of male fish, but there are far less data supporting this hypothesis and almost nothing is known for the effects of oestrogens in combination with antiandrogens in fish. We conducted a series of in vivo exposures in two fish species to investigate the potency on reproductive-relevant endpoints of the antiandrogenic antimicrobials triclosan (TCS), chlorophene (CP) and dichlorophene (DCP) and the resin, abietic acid (AbA), all found widely in WwTW effluents. We also undertook exposures with a mixture of antiandrogens and a mixture of antiandrogens in combination with the oestrogen 17α-ethinyloestradiol (EE2). In stickleback (Gasterosteus aculeatus), DCP showed a tendency to reduce spiggin induction in females androgenised by dihydrotestosterone (DHT), but these findings were not conclusive. In roach (Rutilus rutilus), exposures to DCP (178 days), or a mixture of TCS, CP and AbA (185 days), or to the model antiandrogen flutamide (FL, 178 days) had no effect on gonadal sex ratio or on the development of the reproductive ducts. Exposure to EE2 (1.5ng/L, 185 days) induced feminisation of the ducts in 17% of the males and in the mixture of antiandrogens (TCS, CP, AbA) in combination with EE2, almost all (96%) of the males had a feminised reproductive ducts. In stickleback androgen receptor (ARα and ARβ) transactivation assays, the model antiandrogens, FL and procymidone inhibited 11-ketotestosterone (11-KT) induced receptor activation, but none of the human antiandrogens, TCS, CP, DCP and AbA had an effect. These data indicate that antimicrobial antiandrogens in combination can contribute to the feminisation process in exposed males, but they do not appear to act through the androgen receptor in fish.
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Affiliation(s)
- Anke Lange
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, United Kingdom.
| | - Marion Sebire
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, United Kingdom; Cefas Weymouth Laboratory, Barrack Road, The Nothe, Weymouth, Dorset DT4 8UB, United Kingdom
| | - Pawel Rostkowski
- University of Sussex, School of Life Sciences, Brighton BN1 9QJ, United Kingdom
| | - Takeshi Mizutani
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - Shinichi Miyagawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology, School of Life Science, SOKENDAI (Graduate University for Advanced Studies), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
| | - Elizabeth M Hill
- University of Sussex, School of Life Sciences, Brighton BN1 9QJ, United Kingdom
| | - Charles R Tyler
- University of Exeter, Biosciences, College of Life & Environmental Sciences, Exeter EX4 4QD, United Kingdom.
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36
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Nukuda A, Sasaki C, Ishihara S, Mizutani T, Nakamura K, Ayabe T, Kawabata K, Haga H. Stiff substrates increase YAP-signaling-mediated matrix metalloproteinase-7 expression. Oncogenesis 2015; 4:e165. [PMID: 26344692 PMCID: PMC4767936 DOI: 10.1038/oncsis.2015.24] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [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: 04/02/2015] [Revised: 06/17/2015] [Accepted: 07/25/2015] [Indexed: 02/07/2023] Open
Abstract
Abnormally stiff substrates have been shown to trigger cancer progression. However, the detailed molecular mechanisms underlying this trigger are not clear. In this study, we cultured T84 human colorectal cancer cells on plastic dishes to create a stiff substrate or on collagen-I gel to create a soft substrate. The stiff substrate enhanced the expression of matrix metalloproteinase-7 (MMP-7), an indicator of poor prognosis. In addition, we used polyacrylamide gels (2, 67 and 126 kPa) so that the MMP-7 expression on the 126-kPa gel was higher compared with that on the 2-kPa gel. Next, we investigated whether yes-associated protein (YAP) affected the MMP-7 expression. YAP knockdown decreased MMP-7 expression. Treatment with inhibitors of epidermal growth factor receptor (EGFR) and myosin regulatory light chain (MRLC) and integrin-α2 or integrin-β1 knockdown downregulated MMP-7 expression. Finally, we demonstrated that YAP, EGFR, integrin-α2β1 and MRLC produced a positive feedback loop that enhanced MMP-7 expression. These findings suggest that stiff substrates enhanced colorectal cancer cell viability by upregulating MMP-7 expression through a positive feedback loop.
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Affiliation(s)
- A Nukuda
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - C Sasaki
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - S Ishihara
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan.,Research Center for Cooperative Projects, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - T Mizutani
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - K Nakamura
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - T Ayabe
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - K Kawabata
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - H Haga
- Transdisciplinary Life Science Course, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan.,Research Center for Cooperative Projects, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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37
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Okazaki S, Manabe H, Omatsu T, Tsuchiaka S, Yamamoto T, Chow S, Shibuno T, Watanabe K, Ono S, Kuwada H, Mizutani T. Detection of Japanese eel endothelial cells-infecting virus (JEECV) in the Japanese eel Anguilla japonica (Temminck & Schlegel), living in natural habitats. J Fish Dis 2015; 38:849-852. [PMID: 25117695 DOI: 10.1111/jfd.12294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/23/2014] [Accepted: 06/30/2014] [Indexed: 06/03/2023]
Affiliation(s)
- S Okazaki
- The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - H Manabe
- National Research Institute of Aquaculture, Fisheries Research Agency, Kanagawa, Japan
| | - T Omatsu
- The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - S Tsuchiaka
- The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - T Yamamoto
- National Research Institute of Aquaculture, Fisheries Research Agency, Kanagawa, Japan
| | - S Chow
- National Research Institute of Fisheries Science, Fisheries Research Agency, Kanagawa, Japan
| | - T Shibuno
- National Research Institute of Aquaculture, Fisheries Research Agency, Kanagawa, Japan
| | - K Watanabe
- National Research Institute of Aquaculture, Fisheries Research Agency, Kanagawa, Japan
| | - S Ono
- School of Marine Science and Technology, Tokai University, Shizuoka, Japan
| | - H Kuwada
- National Research Institute of Aquaculture, Fisheries Research Agency, Kanagawa, Japan
| | - T Mizutani
- The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, Tokyo, Japan
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Tohyama S, Miyagawa S, Lange A, Ogino Y, Mizutani T, Tatarazako N, Katsu Y, Ihara M, Tanaka H, Ishibashi H, Kobayashi T, Tyler CR, Iguchi T. Understanding the molecular basis for differences in responses of fish estrogen receptor subtypes to environmental estrogens. Environ Sci Technol 2015; 49:7439-7447. [PMID: 26032098 DOI: 10.1021/acs.est.5b00704] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Exposure to endocrine disrupting chemicals (EDCs) can elicit adverse effects on development, sexual differentiation, and reproduction in fish. Teleost species exhibit at least three subtypes of estrogen receptor (ESR), ESR1, ESR2a, and ESR2b; thus, estrogenic signaling pathways are complex. We applied in vitro reporter gene assays for ESRs in five fish species to investigate the ESR subtype-specificity for better understanding the signaling pathway of estrogenic EDCs. Responses to bisphenol A, 4-nonylphenol, and o,p'-DDT varied among ESR subtypes, and the response pattern of ESRs was basically common among the different fish species. Using a computational in silico docking model and through assays quantifying transactivation of the LBD (using GAL-LBD fusion proteins and chimera proteins for the ESR2s), we found that the LBD of the different ESR subtypes generally plays a key role in conferring responsiveness of the ESR subtypes to EDCs. These results also indicate that responses of ESR2s to EDCs cannot necessarily be predicted from the LBD sequence alone, and an additional region is required for full transactivation of these receptors. Our data thus provide advancing understanding on receptor functioning for both basic and applied research.
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Affiliation(s)
- Saki Tohyama
- †Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
- ‡Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | - Shinichi Miyagawa
- ‡Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | | | - Yukiko Ogino
- ‡Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | - Takeshi Mizutani
- ‡Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | - Norihisa Tatarazako
- ∥Center for Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan
| | - Yoshinao Katsu
- ⊥Department of Biological Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaru Ihara
- #Research Center for Environmental Quality Management, Kyoto University, Otsu, Shiga 520-0811, Japan
| | - Hiroaki Tanaka
- #Research Center for Environmental Quality Management, Kyoto University, Otsu, Shiga 520-0811, Japan
| | - Hiroshi Ishibashi
- ∇Department of Life Environmental Conservation, Faculty of Agriculture, Ehime University, Matsuyama, Ehime 790-8566, Japan
| | - Tohru Kobayashi
- †Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka 422-8526, Japan
| | | | - Taisen Iguchi
- ‡Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8787, Japan
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Hirano Y, Yasuma T, Mizutani T, Fowler BJ, Tarallo V, Yasuma R, Kim Y, Bastos-Carvalho A, Kerur N, Gelfand BD, Bogdanovich S, He S, Zhang X, Nozaki M, Ijima R, Kaneko H, Ogura Y, Terasaki H, Nagai H, Haro I, Núñez G, Ambati BK, Hinton DR, Ambati J. IL-18 is not therapeutic for neovascular age-related macular degeneration. Nat Med 2015; 20:1372-5. [PMID: 25473914 DOI: 10.1038/nm.3671] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yoshio Hirano
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Tetsuhiro Yasuma
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Takeshi Mizutani
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Benjamin J Fowler
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Valeria Tarallo
- 1] Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA. [2] Institute of Genetics and Biophysics Adriano Buzzati-Traverso, Consiglio Nazionale delle Ricerche (CNR), Naples, Italy
| | - Reo Yasuma
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Younghee Kim
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Ana Bastos-Carvalho
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Nagaraj Kerur
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Bradley D Gelfand
- 1] Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA. [2] Department of Biomedical Engineering, University of Kentucky, Lexington, Kentucky, USA. [3] Department of Microbiology, Immunology and Human Genetics, University of Kentucky, Lexington, Kentucky, USA
| | - Sasha Bogdanovich
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Shikun He
- 1] Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA. [2] Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Xiaohui Zhang
- Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Miho Nozaki
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Ryo Ijima
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroki Kaneko
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuichiro Ogura
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroko Terasaki
- Department of Ophthalmology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Nagai
- Division of Dermatology, Kobe University School of Medicine, Chuo-ku, Kobe, Japan
| | - Isao Haro
- Department of Urology, Wakayama Medical University, Wakayama, Japan
| | - Gabriel Núñez
- Department of Pathology and Comprehensive Cancer Center, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Balamurali K Ambati
- 1] Department of Ophthalmology and Visual Sciences, Moran Eye Center, University of Utah School of Medicine, Salt Lake City, Utah, USA. [2] Department of Ophthalmology, Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, Utah, USA
| | - David R Hinton
- 1] Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA. [2] Department of Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Jayakrishna Ambati
- 1] Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, Kentucky, USA. [2] Department of Physiology, University of Kentucky, Lexington, Kentucky, USA
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40
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Madarame H, Ogihara K, Kimura M, Nagai M, Omatsu T, Ochiai H, Mizutani T. Detection of pneumonia virus of mice in an african hedgehog (aterelix arbiventris) with suspected ‘wobbly hedgehog syndrome’. J Comp Pathol 2015. [DOI: 10.1016/j.jcpa.2014.10.192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Fowler BJ, Gelfand BD, Kim Y, Kerur N, Tarallo V, Hirano Y, Amarnath S, Fowler DH, Radwan M, Young MT, Pittman K, Kubes P, Agarwal HK, Parang K, Hinton DR, Bastos-Carvalho A, Li S, Yasuma T, Mizutani T, Yasuma R, Wright C, Ambati J. Nucleoside reverse transcriptase inhibitors possess intrinsic anti-inflammatory activity. Science 2014; 346:1000-3. [PMID: 25414314 DOI: 10.1126/science.1261754] [Citation(s) in RCA: 163] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Nucleoside reverse transcriptase inhibitors (NRTIs) are mainstay therapeutics for HIV that block retrovirus replication. Alu (an endogenous retroelement that also requires reverse transcriptase for its life cycle)-derived RNAs activate P2X7 and the NLRP3 inflammasome to cause cell death of the retinal pigment epithelium in geographic atrophy, a type of age-related macular degeneration. We found that NRTIs inhibit P2X7-mediated NLRP3 inflammasome activation independent of reverse transcriptase inhibition. Multiple approved and clinically relevant NRTIs prevented caspase-1 activation, the effector of the NLRP3 inflammasome, induced by Alu RNA. NRTIs were efficacious in mouse models of geographic atrophy, choroidal neovascularization, graft-versus-host disease, and sterile liver inflammation. Our findings suggest that NRTIs are ripe for drug repurposing in P2X7-driven diseases.
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Affiliation(s)
- Benjamin J Fowler
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA. Department of Physiology, University of Kentucky, Lexington, KY 40536, USA
| | - Bradley D Gelfand
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA. Department of Microbiology, Immunology, and Human Genetics, University of Kentucky, Lexington, KY 40536, USA. Department of Biomedical Engineering, University of Kentucky, Lexington, KY 40536, USA
| | - Younghee Kim
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Nagaraj Kerur
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Valeria Tarallo
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA. Angiogenesis Lab, Institute of Genetics and Biophysics, CNR, Naples, Italy
| | - Yoshio Hirano
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Shoba Amarnath
- Experimental Transplantation and Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Daniel H Fowler
- Experimental Transplantation and Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Marta Radwan
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Mark T Young
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, UK
| | - Keir Pittman
- Immunology Research Group, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Paul Kubes
- Immunology Research Group, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Hitesh K Agarwal
- Chapman University School of Pharmacy, 9401 Jeronimo Road, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - Keykavous Parang
- Chapman University School of Pharmacy, 9401 Jeronimo Road, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - David R Hinton
- Departments of Pathology and Ophthalmology, Keck School of Medicine of the University of Southern California, Los Angeles, CA 90033, USA
| | - Ana Bastos-Carvalho
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Shengjian Li
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Tetsuhiro Yasuma
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Takeshi Mizutani
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Reo Yasuma
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Charles Wright
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA
| | - Jayakrishna Ambati
- Department of Ophthalmology and Visual Sciences, University of Kentucky, Lexington, KY 40536, USA. Department of Physiology, University of Kentucky, Lexington, KY 40536, USA.
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Tokuwaka J, Satsumae T, Mizutani T, Yamada K, Inomata S, Tanaka M. The relationship between age and minimum alveolar concentration of sevoflurane for maintaining bispectral index below 50 in children. Anaesthesia 2014; 70:318-22. [DOI: 10.1111/anae.12890] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2014] [Indexed: 11/27/2022]
Affiliation(s)
- J. Tokuwaka
- Department of Anaesthesiology; University of Tsukuba; Tsukuba-city Japan
| | - T. Satsumae
- Department of Anaesthesiology; University of Tsukuba; Tsukuba-city Japan
| | - T. Mizutani
- Department of Emergency and Critical Care Medicine; University of Tsukuba; Tsukuba-city Japan
| | - K. Yamada
- Department of Anaesthesiology; University of Tsukuba; Tsukuba-city Japan
| | - S. Inomata
- Department of Anaesthesiology; University of Tsukuba; Tsukuba-city Japan
| | - M. Tanaka
- Department of Anaesthesiology; University of Tsukuba; Tsukuba-city Japan
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43
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Miyagawa S, Lange A, Tohyama S, Ogino Y, Mizutani T, Kobayashi T, Tatarazako N, Tyler CR, Iguchi T. Characterization ofOryzias latipesglucocorticoid receptors and their unique response to progestins. J Appl Toxicol 2014; 35:302-9. [DOI: 10.1002/jat.3020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/21/2014] [Accepted: 03/21/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Shinichi Miyagawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology; The Graduate University for Advanced Studies (SOKENDAI); Okazaki Aichi 444-8787 Japan
| | - Anke Lange
- Biosciences, College of Life and Environmental Sciences; University of Exeter; Stocker Road Exeter EX4 4QD UK
| | - Saki Tohyama
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology; The Graduate University for Advanced Studies (SOKENDAI); Okazaki Aichi 444-8787 Japan
- Graduate School of Nutritional and Environmental Sciences; University of Shizuoka; Shizuoka 422-8526 Japan
| | - Yukiko Ogino
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology; The Graduate University for Advanced Studies (SOKENDAI); Okazaki Aichi 444-8787 Japan
| | - Takeshi Mizutani
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology; The Graduate University for Advanced Studies (SOKENDAI); Okazaki Aichi 444-8787 Japan
| | - Tohru Kobayashi
- Graduate School of Nutritional and Environmental Sciences; University of Shizuoka; Shizuoka 422-8526 Japan
| | - Norihisa Tatarazako
- Environmental Quality Measurement Section, Research Center for Environmental Risk; National Institute for Environmental Studies; 16-2 Onogawa Tsukuba Ibaraki 305-8506 Japan
| | - Charles R. Tyler
- Biosciences, College of Life and Environmental Sciences; University of Exeter; Stocker Road Exeter EX4 4QD UK
| | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology; The Graduate University for Advanced Studies (SOKENDAI); Okazaki Aichi 444-8787 Japan
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Miyagawa S, Lange A, Hirakawa I, Tohyama S, Ogino Y, Mizutani T, Kagami Y, Kusano T, Ihara M, Tanaka H, Tatarazako N, Ohta Y, Katsu Y, Tyler CR, Iguchi T. Differing species responsiveness of estrogenic contaminants in fish is conferred by the ligand binding domain of the estrogen receptor. Environ Sci Technol 2014; 48:5254-63. [PMID: 24689804 DOI: 10.1021/es5002659] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Exposure to estrogenic endocrine disrupting chemicals (EDCs) induces a range of adverse effects, notably on reproduction and reproductive development. These responses are mediated via estrogen receptors (ERs). Different species of fish may show differences in their responsiveness to environmental estrogens but there is very limited understanding on the underlying mechanisms accounting for these differences. We used custom developed in vitro ERα reporter gene assays for nine fish species to analyze the ligand- and species-specificity for 12 environmental estrogens. Transcriptonal activities mediated by estradiol-17β (E2) were similar to only a 3-fold difference in ERα sensitivity between species. Diethylstilbestrol was the most potent estrogen (∼ 10-fold that of E2) in transactivating the fish ERαs, whereas equilin was about 1 order of magnitude less potent in all species compared to E2. Responses of the different fish ERαs to weaker environmental estrogens varied, and for some considerably. Medaka, stickleback, bluegill and guppy showed higher sensitivities to nonylphenol, octylphenol, bisphenol A and the DDT-metabolites compared with cyprinid ERαs. Triclosan had little or no transactivation of the fish ERαs. By constructing ERα chimeras in which the AF-containing domains were swapped between various fish species with contrasting responsiveness and subsequent exposure to different environmental estrogens. Our in vitro data indicate that the LBD plays a significant role in accounting for ligand sensitivity of ERα in different species. The differences seen in responsiveness to different estrogenic chemicals between species indicate environmental risk assessment for estrogens cannot necessarily be predicted for all fish by simply examining receptor activation for a few model fish species.
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Affiliation(s)
- Shinichi Miyagawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology, The Graduate School for Advanced Studies (SOKENDAI) , Okazaki, Aichi 444-8787, Japan
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Hirano Y, Yasukawa T, Mizutani T, Yoshida M, Ogura Y. Recovery of retinal pigment epithelium correlating with restoration of retinal sensitivity in eyes with a retinal pigment epithelial tear. Acta Ophthalmol 2014; 92:94-7. [PMID: 22989199 DOI: 10.1111/j.1755-3768.2012.02561.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoshio Hirano
- Department of Ophthalmology, Nagoya City University Medical School, Nagoya, Japan
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Toyota K, Kato Y, Miyakawa H, Yatsu R, Mizutani T, Ogino Y, Miyagawa S, Watanabe H, Nishide H, Uchiyama I, Tatarazako N, Iguchi T. Molecular impact of juvenile hormone agonists on neonatalDaphnia magna. J Appl Toxicol 2013; 34:537-44. [DOI: 10.1002/jat.2922] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 07/27/2013] [Accepted: 07/28/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Kenji Toyota
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
- Department of Basic Biology, Faculty of Life Science; Graduate University for Advanced Studies (SOKENDAI); 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
| | - Yasuhiko Kato
- Department of Biotechnology; Graduate School of Engineering, Osaka University; 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Hitoshi Miyakawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
| | - Ryohei Yatsu
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
- Department of Basic Biology, Faculty of Life Science; Graduate University for Advanced Studies (SOKENDAI); 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
| | - Takeshi Mizutani
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
| | - Yukiko Ogino
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
- Department of Basic Biology, Faculty of Life Science; Graduate University for Advanced Studies (SOKENDAI); 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
| | - Shinichi Miyagawa
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
- Department of Basic Biology, Faculty of Life Science; Graduate University for Advanced Studies (SOKENDAI); 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
| | - Hajime Watanabe
- Department of Biotechnology; Graduate School of Engineering, Osaka University; 2-1 Yamadaoka, Suita Osaka 565-0871 Japan
| | - Hiroyo Nishide
- Data Integration and Analysis Facility; National Institute for Basic Biology; 38 Nishigonaka, Myodaiji Okazaki Aichi 444-8585 Japan
| | - Ikuo Uchiyama
- Data Integration and Analysis Facility; National Institute for Basic Biology; 38 Nishigonaka, Myodaiji Okazaki Aichi 444-8585 Japan
| | - Norihisa Tatarazako
- Environmental Quality Measurement Section, Research Center for Environmental Risk; National Institute for Environmental Studies; 16-2 Onogawa Tsukuba Ibaraki 305-8506 Japan
| | - Taisen Iguchi
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences; 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
- Department of Basic Biology, Faculty of Life Science; Graduate University for Advanced Studies (SOKENDAI); 5-1 Higashiyama, Myodaiji Okazaki Aichi 444-8787 Japan
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Toyota K, Kato Y, Sato M, Sugiura N, Miyagawa S, Miyakawa H, Watanabe H, Oda S, Ogino Y, Hiruta C, Mizutani T, Tatarazako N, Paland S, Jackson C, Colbourne JK, Iguchi T. Molecular cloning of doublesex genes of four cladocera (water flea) species. BMC Genomics 2013; 14:239. [PMID: 23575357 PMCID: PMC3637828 DOI: 10.1186/1471-2164-14-239] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [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: 09/29/2012] [Accepted: 03/26/2013] [Indexed: 11/10/2022] Open
Abstract
Background The gene doublesex (dsx) is known as a key factor regulating genetic sex determination in many organisms. We previously identified two dsx genes (DapmaDsx1 and DapmaDsx2) from a freshwater branchiopod crustacean, Daphnia magna, which are expressed in males but not in females. D. magna produces males by parthenogenesis in response to environmental cues (environmental sex determination) and we showed that DapmaDsx1 expression during embryonic stages is responsible for the male trait development. The D. magna dsx genes are thought to have arisen by a cladoceran-specific duplication; therefore, to investigate evolutionary conservation of sex specific expression of dsx genes and to further assess their functions in the environmental sex determination, we searched for dsx homologs in four closely related cladoceran species. Results We identified homologs of both dsx genes from, D. pulex, D. galeata, and Ceriodaphnia dubia, yet only a single dsx gene was found from Moina macrocopa. The deduced amino acid sequences of all 9 dsx homologs contained the DM and oligomerization domains, which are characteristic for all arthropod DSX family members. Molecular phylogenetic analysis suggested that the dsx gene duplication likely occurred prior to the divergence of these cladoceran species, because that of the giant tiger prawn Penaeus monodon is rooted ancestrally to both DSX1 and DSX2 of cladocerans. Therefore, this result also suggested that M. macrocopa lost dsx2 gene secondarily. Furthermore, all dsx genes identified in this study showed male-biased expression levels, yet only half of the putative 5’ upstream regulatory elements are preserved in D. magna and D. pulex. Conclusions The all dsx genes of five cladoceran species examined had similar amino acid structure containing highly conserved DM and oligomerization domains, and exhibited sexually dimorphic expression patterns, suggesting that these genes may have similar functions for environmental sex determination in cladocerans.
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Affiliation(s)
- Kenji Toyota
- Okazaki Institute for Integrative Bioscience, National Institute for Basic Biology, National Institutes of Natural Sciences, and Department of Basic Biology, Faculty of Life Science, Graduate University for Advanced Studies (SOKENDAI), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi, Japan
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Mizutani T, Ashikari M, Tokoro M, Nozaki M, Ogura Y. Suppression of laser-induced choroidal neovascularization by a CCR3 antagonist. Invest Ophthalmol Vis Sci 2013; 54:1564-72. [PMID: 23404125 DOI: 10.1167/iovs.11-9095] [Citation(s) in RCA: 22] [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: 11/24/2022] Open
Abstract
PURPOSE To evaluate the efficacy of a novel CCR3 antagonist for laser injury-induced choroidal neovascularization (CNV) in mice. METHODS We evaluated YM-344031, a novel and selective small-molecule CCR3 antagonist. CNV was induced by laser injury in C57BL/6J mice, and its volume was measured after 7 days by confocal microscopy. Leakage from the CNV was also measured after 7 days by fluorescein angiography. The CCR3 antagonist was administered by gavage at 1 hour before and 1 day after the laser injury, or intravitreous injection immediately after the laser injury. After the laser injury, ELISA, Western blot analysis, and real-time RT-PCR for VEGF-A expression in the RPE/choroid, and immunohistochemistry for CCR3, CCL11, Ki67, and Rac1 was performed. RESULTS Both oral administration and intravitreous injection of YM-344031 significantly suppressed the CNV volume (P < 0.0001 and P < 0.01, respectively). Pathologically significant leakage was significantly less common in YM-344031-injected mice (P < 0.0001). The mean VEGF protein level was significantly increased in vehicle-injected eyes after the laser injury (P < 0.05). Although the YM-344031-injected eyes did not show VEGF-A suppression after the laser injury, VEGF164 mRNA upregulation was significantly suppressed in YM-344031-injected mice (P < 0.05), and intravitreous injection of YM-344031 appeared to suppress CCR3, CCL11 (eotaxin), Ki67, and Rac1 expression after the laser injury. CONCLUSIONS The present data suggest that the CCR3 antagonist YM-344031 can suppress CNV, via suppression of the upregulation of VEGF164 mRNA in VEGF isoform after the laser injury. Although our findings may warrant further investigation, YM-344031 may have potential as a new therapy for age-related macular degeneration.
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Affiliation(s)
- Takeshi Mizutani
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Yoshimura C, Kitade M, Oshiumi H, Uno T, Chong-Takata K, Kawai Y, Yamashita S, Mizutani T, Ohkubo S, Utsugi T. 292 Evolution of Highly Selective HSP90a/β Inhibitors with Unique Binding Mode. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72090-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Morise M, Mizutani T, Oguri T, Imai N, Hase T, Shindo Y, Inukai Y, Ito S, Hashimoto N, Sato M, Kondo M, Hasegawa Y. Prognostic Factors in Recurrent Small-Cell Lung Carcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32396-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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