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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Sato D, Tsunoda S, Namba-Hamano T, Kyo M, Kusumi K, Morishima A, Sakaguchi K, Matsunaga Y, Fujita S, Yamaguchi Y. A Case of Acute Kidney Injury Caused by Myoglobin Cast Nephropathy With Sars-Cov-2 Infection in a Living-Donor Kidney Transplant Recipient. Transplant Proc 2023:S0041-1345(23)00237-3. [PMID: 37208224 DOI: 10.1016/j.transproceed.2023.03.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 03/30/2023] [Indexed: 05/21/2023]
Abstract
When COVID-19 affects patients with risk factors such as chronic kidney disease or on immunosuppressive drugs, they often rapidly become seriously ill. We describe a 50-year-old man who was affected with SARS-CoV-2 and had undergone an ABO-compatible living-donor kidney transplantation from his father 14 years ago because of end-stage renal failure due to hypertensive nephrosclerosis. He had continued on immunosuppressive drugs and completed vaccination twice (9 months ago and 6 months ago) with messenger RNA (mRNA) vaccines against SARS-CoV-2. However, he was temporarily on a mechanical ventilator due to respiratory failure and hemodialysis due to acute kidney injury (AKI). He was finally weaned from the ventilator and hemodialysis by taking steroid and antiviral drugs. Echo-guided renal biopsy revealed myoglobin cast nephropathy. We experienced 14 outpatients after living-donor kidney transplantation infected with SARS-CoV-2, but only this case developed AKI.
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Affiliation(s)
- Daihi Sato
- Department of Kidney Center, Sumitomo Hospital, Osaka, Japan.
| | | | - Tomoko Namba-Hamano
- Department of Nephrology, Osaka University Graduate School of Medicine, Osaka, Japan
| | | | - Kumi Kusumi
- Department of Kidney Center, Sumitomo Hospital, Osaka, Japan
| | | | | | - Yuki Matsunaga
- Department of Pathology, Sumitomo Hospital, Osaka, Japan
| | - Shigeki Fujita
- Department of Pathology, Sumitomo Hospital, Osaka, Japan
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Kawano K, Sakaguchi K, Ninpetch N, Yanagawa Y, Katagiri S. 157 Effects of high temperature within physiological range on the amino acid metabolism of. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Sakaguchi K, Watari T. Primary central nervous system lymphoma in an underdiagnosed HIV case. QJM 2022; 115:476-477. [PMID: 35587160 DOI: 10.1093/qjmed/hcac123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Sakaguchi
- General Medicine Center, Shimane University Hospital, Shimane, Japan
| | - T Watari
- General Medicine Center, Shimane University Hospital, Shimane, Japan and Department of Medicine, University of Michigan Medical School, Ann Arbor, MI, USA.
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Muratsu J, Kamide K, Fujimoto T, Takeya Y, Sugimoto K, Taniyama Y, Morishima A, Sakaguchi K, Rakugi H. Lower body mass index potentiates the association between skipping breakfast and prevalence of proteinuria. Front Endocrinol (Lausanne) 2022; 13:916374. [PMID: 36060962 PMCID: PMC9437953 DOI: 10.3389/fendo.2022.916374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/20/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Proteinuria is an important predictor of cardiovascular disease and mortality. Several studies reported the association between skipping breakfast and the prevalence of proteinuria. Furthermore, skipping breakfast was associated with an increased risk of obesity. Although proteinuria is highly prevalent in obese individuals, the association between the prevalence of proteinuria and low body mass index (BMI) was reported in a previous cross-sectional study in asymptomatic individuals without known kidney diseases. The aim of this cross-sectional study was to assess the clinical impact of BMI on the association between skipping breakfast and the prevalence of proteinuria in normal renal function subjects. METHODS The present study included 26,888 subjects (15,875 males and 11,013 females) with an estimated glomerular filtration rate ≥60 ml/min/1.73 m2 and no history of kidney disease who underwent a health checkup in Sumitomo Hospital. The association between skipping breakfast and the prevalence of proteinuria (defined as dipstick proteinuria of ≥1+) was assessed using logistic regression models adjusted for clinically relevant factors. RESULTS Skipping breakfast was reported in 3,306 males (20.8%) and 1,514 females (13.8%). Multivariable adjusted logistic regression models showed that skipping breakfast was significantly associated with the prevalence of proteinuria above 1+. This association was evident in lower BMI subjects, even after adjusting for clinically relevant factors (adjusted odds ratios of males and females were 1.67 [1.17-2.38] and 1.92 [1.31-2.82], respectively), whereas this association was not evident in higher BMI subjects. CONCLUSION Lower BMI subjects with proteinuria might need to be careful about skipping breakfast.
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Affiliation(s)
- Jun Muratsu
- Department of Nephrology and Hypertension, Sumitomo Hospital, Osaka, Japan
- Department of Nephrology, Rinku General Medical Center, Izumisano City, Japan
- *Correspondence: Jun Muratsu,
| | - Kei Kamide
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takashi Fujimoto
- Department of Nephrology and Hypertension, Sumitomo Hospital, Osaka, Japan
| | - Yasushi Takeya
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ken Sugimoto
- Department of General and Geriatric Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan
| | - Yoshiaki Taniyama
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Atsuyuki Morishima
- Department of Nephrology and Hypertension, Sumitomo Hospital, Osaka, Japan
| | | | - Hiromi Rakugi
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
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Fujiwara D, Tsubaki M, Takeda T, Miura M, Nishida S, Sakaguchi K. Objective evaluation of nutritional status using the prognostic nutritional index during and after chemoradiotherapy in Japanese patients with head and neck cancer: a retrospective study. Eur J Hosp Pharm 2021; 28:266-270. [PMID: 34426479 DOI: 10.1136/ejhpharm-2019-001979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/18/2019] [Accepted: 08/06/2019] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES The incidence of severe mucosal damage due to low nutritional status is high in patients receiving concurrent chemoradiotherapy (CCRT) for head and neck cancer. Objective assessments do not exist for discharge criteria after completion of CCRT. Although the prognostic nutritional index (PNI) is an objective indicator of postoperative outcomes in patients undergoing cancer surgery, the prognostic impact of the PNI in patients with head and neck cancer receiving CCRT is unexplored. We investigated whether the PNI could be an objective criterion for nutritional status and a discharge criterion after completion of CCRT. METHODS We assessed the medical records of 23 patients with head and neck cancer who received triweekly cisplatin +radiotherapy (2 Gy ×35 fractions). We evaluated whether the PNI could be a useful evaluation indicator in patients with head and neck cancer receiving CCRT and determined the cut-off PNI value by receiver operating characteristic (ROC) curve analysis as a criterion for hospital discharge. RESULTS The PNI pre-treatment and post-treatment values were 51.0 and 38.0, respectively (p<0.05). The median length of hospitalisation after therapy was 5 days in patients with grades 1 and 2 and 10 days in patients with grade 3 oral and pharyngeal mucositis (p<0.05). The optimal cut-off PNI value as a criterion for hospital discharge was found to be 40.4 (grades 1 and 2 mucositis) and 38.6 (grade 3 mucositis) by the ROC analysis. CONCLUSIONS The PNI is a simple, objective and temporal indicator which is useful in assessing the nutritional status of patients with head and neck cancer. The PNI could be used as an objective indicator to determine the time of discharge after CCRT completion.
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Affiliation(s)
- Daichiro Fujiwara
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan .,Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Masanobu Tsubaki
- Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Tomoya Takeda
- Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Makoto Miura
- Department of Otolaryngology, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Shozo Nishida
- Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Katsuhiko Sakaguchi
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
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Muratsu J, Hara M, Morishima A, Sakaguchi K, Fujimoto T. MO532WHICH UNHEALTHY LIFE-BEHAVIOR IS THE MOST IMPACT FOR THE PRESENCE OF PROTEINURIA? Nephrol Dial Transplant 2021. [DOI: 10.1093/ndt/gfab087.0052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and Aims
Unhealthy life-behaviors such as dietary habits, lack of exercise, drinking large amount of alcohol and smoking cause obesity, hypertension, diabetes, dyslipidemia, cardiovascular disease (CVD). These are also closely associated with chronic kidney disease (CKD). CKD is characterized by proteinuria and low glomerular filtration rate (GFR). Independent of GFR, proteinuria is an important predictor of ESKD. Few studies have assessed which is the most clinical impact among the unhealthy life-behaviors: skipping breakfast, snacking, late-night dinner, smoking, heavy alcohol intake and lack of exercise habits for proteinuria in normal renal function patients.
Method
This cross-sectional study included 29,780 normal renal function patients: eGFR≥60 mL/min/1.73 m2 and no history of kidney diseases who underwent health checkup at the Physical Checkup Center of Sumitomo Hospital. The endpoint of this investigation is defined as dipstick proteinuria of≥ 1+. To assess the association of life-behaviors and the presence of proteinuria, their odds ratios were calculated in adjusted univariable and multivariable logistic regression model. Multivariable logistic regression model was performed by not selected items, the same with univariable model. We would like to investigate the most impact unhealthy life-behavior for the proteinuria.
Results
Among 29,780 total study subjects (male: 60.3%; mean age: 49±11 years), 1,118 (3.75%) subjects were shown as urinary protein above 1+. The presence of unhealthy dietary life-behaviors: skipping breakfast, snacking and late-night dinner was 5,293 (17.3%), 3,899 (13.1%) and 11,231 (37.7%), respectively. About sleeping duration, the population of <6 hours, 6-8 hours and >8 hours were 12,027 (40.4%), 17,236 (57.9%) and 517 (1.7%). The population of exercise habits: over 3 days/weeks, 1-2 days/weeks and none were 5,138 (17.3%), 9,375 (31.5%) and 15,237 (51.3%), suggesting half of them did not have exercise habits. About smoking habits, the population of current smoking, past smoking and never smoking were shown 6,445 (21.6%), 8,459 (28.4%) and 14,876 (50.0%). In addition, about alcohol amount per day, the population of over 60g, 40-60g, 20-40g and 0-20g were 1,840 (6.18%), 4,504 (15.1%), 6,727 (22.6%) and 16,709 (56.1%).
To investigate the impact of life-behavior for proteinuria, we obtained odds ratio of adjusted multivariable logistic regression model. In multivariable regression, among the life-behavior: skipping breakfast, current smoking, alcohol amount (ethanol over 60 g/day), none of exercise habits and snacking were strongly associated with the prevalence of proteinuria (skipping breakfast, adjusted odds ratio 1.45 [1.26, 1.68]; current smoking, 1.35 [1.14, 1.59]; alcohol amount (ethanol over 60 g/day), 1.35 [1.08, 1.69]; none of exercise habits, 1.29 [1.07, 1.57]; snacking, 1.23 [1.04, 1.46]). In addition, among the history of medical history, diabetes mellitus, hypertension and dyslipidemia were significantly associated with the prevalence of proteinuria (diabetes mellitus, adjusted odds ratio 2.39 [1.93, 2.96]; hypertension, 1.83 [1.53, 2.17]; 1.22 [1.03, 1.45]).
Conclusion
Among the unhealthy life-behaviors, skipping breakfast is the most impact factor for the presence of proteinuria.
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Affiliation(s)
- Jun Muratsu
- Sumitomo Hospital, Department of Nephrology and Hypertension
| | - Masahiko Hara
- Shimane University, Center for Community-based Healthcare Research and Education
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Nozato S, Ito A, Terashima K, Nozato Y, Yoshii Y, Seki K, Yoshimoto R, Morishima A, Sakaguchi K, Kitano M. Successful treatment of COVID-19 with colchicine in a kidney transplant recipient. QJM 2021; 114:197-199. [PMID: 33284977 PMCID: PMC7798490 DOI: 10.1093/qjmed/hcaa323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Indexed: 01/07/2023] Open
Affiliation(s)
- Satoko Nozato
- Division of Immunology and Rheumatology, Sumitomo Hospital, Osaka, Japan
- Corresponding author: Satoko Nozato, MD, PhD, Division of Immunology and Rheumatology, Sumitomo Hospital, Osaka, Japan, 5-3-20 Nakanosima, Kita-ku, Osaka, 530-0005, Japan. Tel +81-6-6443-1261, Fax +81-6-6444-3975,
| | - Akane Ito
- Division of Immunology and Rheumatology, Sumitomo Hospital, Osaka, Japan
| | | | - Yoichi Nozato
- Department of General Internal Medicine, Osaka University Hospital, Osaka, Japan
| | - Yuki Yoshii
- Kidney Center, Sumitomo Hospital, Osaka, Japan
| | - Kaori Seki
- Division of Immunology and Rheumatology, Sumitomo Hospital, Osaka, Japan
| | - Ryota Yoshimoto
- Division of Immunology and Rheumatology, Sumitomo Hospital, Osaka, Japan
| | | | | | - Masayasu Kitano
- Division of Immunology and Rheumatology, Sumitomo Hospital, Osaka, Japan
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Muratsu J, Kamide K, Fujimoto T, Takeya Y, Sugimoto K, Taniyama Y, Morishima A, Sakaguchi K, Matsuzawa Y, Rakugi H. The Combination of High Levels of Adiponectin and Insulin Resistance Are Affected by Aging in Non-Obese Old Peoples. Front Endocrinol (Lausanne) 2021; 12:805244. [PMID: 35069451 PMCID: PMC8777034 DOI: 10.3389/fendo.2021.805244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/15/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Adipokine dysregulation is a key feature of insulin resistance and a metabolic syndrome associated with obesity. Low adiponectin levels are associated with higher risks of cardiovascular diseases (CVD). However, high adiponectin levels have also been associated with increased all-cause and cardiovascular mortality in the elderly. This adiponectin paradox has yet to be clarified, which has hindered our understanding of the biological role of adiponectin. Adipokine dysregulation and insulin resistance are also associated with energy-deprivation conditions, such as frailty in old age. The objective of this study was to investigate the association between plasma adiponectin and insulin resistance using the homeostasis model assessment for insulin resistance (HOMA-IR) classified by age. In particular, we sought to determine the factors of the subjects associated with both high adiponectin levels and HOMA-IR (H-adiponectin/H-HOMA) and high adiponectin levels and low HOMA-IR (H-adiponectin/L-HOMA). METHODS The eligible subjects in this cross-sectional study were 33,216 individuals who had undergone health checkups at the Physical Checkup Center of Sumitomo Hospital between April 2008 and December 2018. After excluding 26,371 individuals who were under 60 years old, 529 who had been taking medications for diabetes mellitus, and 690 with missing data, the present study included 5,673 (3,467 males, 2,206 females) subjects with no missing data. The relationship between serum adiponectin levels and HOMA-IR was assessed using logistic regression models adjusted by clinically relevant factors. RESULTS In the multivariable logistic regression analysis, age and low BMI were shown to positively correlate with the characteristics of H-adiponectin/H-HOMA. In females, systolic blood pressure was also shown to be an associated factor. CONCLUSION In conclusion, this study showed that aging or a low BMI may contribute to high adiponectin levels and insulin resistance.
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Affiliation(s)
- Jun Muratsu
- Department of Nephrology and Hypertension, Sumitomo Hospital, Osaka, Japan
- Department of Nephrology, Rinku General Medical Center, Izumisano City, Japan
- *Correspondence: Jun Muratsu,
| | - Kei Kamide
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takashi Fujimoto
- Department of Nephrology and Hypertension, Sumitomo Hospital, Osaka, Japan
| | - Yasushi Takeya
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Ken Sugimoto
- Department of General and Geriatric Medicine, Kawasaki Medical School General Medical Center, Okayama, Japan
| | - Yoshiaki Taniyama
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Atsuyuki Morishima
- Department of Nephrology and Hypertension, Sumitomo Hospital, Osaka, Japan
| | | | - Yuji Matsuzawa
- Department of Nephrology and Hypertension, Sumitomo Hospital, Osaka, Japan
| | - Hiromi Rakugi
- Department of Geriatric and General Medicine, Osaka University Graduate School of Medicine, Suita, Japan
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Kawano K, Sakaguchi K, Furukawa E, Chelenga M, Yanagawa Y, Katagiri S. 85 The effects of heat exposure on the growth and developmental competence of oocytes derived from early antral follicles in dairy cows. Reprod Fertil Dev 2021. [DOI: 10.1071/rdv33n2ab85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Summer heat stress in dairy cows impairs the developmental competence of oocytes from antral follicles (2–8mm) which are used in conventional IVM and IVF systems. Moreover, summer heat stress is considered to impair the oocyte competence derived from smaller follicles; therefore, the impairment of oocyte competence possibly continues into the cooler autumn season. To investigate the thermosensitivity of early antral follicles (<1mm), we evaluated the effects of heat exposure on the growth and developmental competence of oocytes using invitro culture of oocyte–cumulus-granulosa complexes (OCGCs) derived from early antral follicles. OCGCs (n=315) were collected from early antral follicles (0.5–1mm) and cultured for 12 days. OCGCs in the heat shock group were cultured using a temperature cycle of 38.5°C for 5h, 39.5°C for 5h, 40.5°C for 5h, and 39.5°C for 9h, whereas those in the control group were cultured at a constant temperature of 38.5°C for 24h. The diameters of oocytes were measured before culture. Half of the culture medium was replaced every 4 days. Oestradiol-17β (E2) and progesterone (P4) production during the first, second, and third 4-day periods were measured by enzyme immunoassay; the viability of OCGCs was evaluated based on their morphology. Oocytes that survived after 12 days of culture (n=191) were subjected to IVM (38.5°C, 22h); their diameter and nuclear status were evaluated. Some oocytes (n=71) were subjected to IVF (38.5°C, 18h) and embryo culture (39.0°C, 150h). Cleavage and blastocyst rates were evaluated at 48h and 168h after IVF. Effects of treatment groups and culture periods on E2 and P4 production and diameters of oocytes were evaluated by two-way ANOVA followed by Tukey-Kramer or Student’s t-test. The viability of OCGCs, nuclear maturation, cleavage and blastocyst rates between two groups were compared by the chi-squared or Fisher’s exact test. E2 and P4 production and the viability of OCGCs were not different between the 2 groups. Although mean oocyte diameters before culture did not differ between the 2 groups, the mean diameters after IVM were significantly smaller in the heat shock group (108.0µm, n=56) than in the control group (111.7µm, n=61; P<0.05). The nuclear maturation rate in the heat shock group (36.4%, n=55) was significantly lower than in the control group (60.3%, n=58; P<0.05). Cleavage rates were similar between the control (54.5%, n=33) and heat shock groups (45.7%, n=35). However, no oocytes developed to blastocysts in the heat shock group (0%, n=35), whereas 30.3% (n=33) oocytes developed to blastocysts (cell number±s.d.; 92.4±28.4) in the control group (P<0.05). These findings suggest that summer heat stress in dairy cows impairs the growth, nuclear maturation, and developmental competence of oocytes derived from early antral follicles. This experimental model could be used to explore the mechanisms by which heat stress subsequently impairs oocyte competence during the cooler autumn season.
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Tanaka R, Kakuta Y, Tsutahara K, Nakagawa M, Ichimaru N, Sakaguchi K, Kato T, Imamura R, Nonomura N, Takao T. Successful recovery from coronavirus disease 2019 in a living kidney transplant recipient using low-dose methylprednisolone. IJU Case Rep 2021; 4:22-24. [PMID: 33230502 PMCID: PMC7675346 DOI: 10.1002/iju5.12226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/14/2020] [Indexed: 01/20/2023] Open
Abstract
Introduction The data of immunosuppressive therapy management on solid organ transplant recipients with coronavirus disease 2019 are insufficient. We report a kidney transplant recipient who developed coronavirus disease 2019 pneumonia, with successful management of low-dose mPSL. Case presentation A 36-year-old man, who underwent living kidney transplantation 1.5 year prior, developed fever. After 10 days, he developed dyspnea, and his blood oxygen levels decreased. Computed tomography showed pulmonary ground-glass shadow on both lungs, and the coronavirus disease 2019 real-time polymerase chain reaction test was positive. After reducing the immunosuppressive agents, the C-reactive protein levels continued elevating, and the pulmonary shadow spread. Subsequently, low-dose methylprednisolone (40 mg/day) was administered for 4 days and his C-reactive protein and blood oxygen levels increased and improved, respectively. The coronavirus disease 2019 real-time polymerase chain reaction test was negative and the pulmonary shadow disappeared. Conclusion Low-dose methylprednisolone may prevent the development of severe coronavirus disease 2019.
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Affiliation(s)
- Ryo Tanaka
- Department of UrologyOsaka General Medical CancerOsaka CityOsakaJapan
| | - Yoichi Kakuta
- Department of UrologyOsaka General Medical CancerOsaka CityOsakaJapan
| | - Koichi Tsutahara
- Department of UrologyOsaka General Medical CancerOsaka CityOsakaJapan
| | - Masahiro Nakagawa
- Department of UrologyOsaka General Medical CancerOsaka CityOsakaJapan
| | | | | | - Taigo Kato
- Department of UrologyOsaka University Graduate School of MedicineSuitaOsakaJapan
| | - Ryoichi Imamura
- Department of UrologyOsaka University Graduate School of MedicineSuitaOsakaJapan
| | - Norio Nonomura
- Department of UrologyOsaka University Graduate School of MedicineSuitaOsakaJapan
| | - Tetsuya Takao
- Department of UrologyOsaka General Medical CancerOsaka CityOsakaJapan
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Mashimo K, Fujiwara D, Hoshida T, Morimoto N, Noda A, Takeda T, Tsubaki M, Nishida S, Sakaguchi K. [Three Cases of Augmented Chemotherapy-Induced Peripheral Neuropathy after Changing from mFOLFOX6 to FOLFIRI Therapy in Patients with Colorectal Cancer]. Gan To Kagaku Ryoho 2020; 47:993-995. [PMID: 32541182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We had cases in which peripheral neuropathy was augmented after changing from mFOLFOX6, a chemotherapy for colorectal cancer, to FOLFIRI and comparatively examined disease status and trends. There were no shared points with respect to patient characteristics, timing of peripheral neuropathy augmentation, drug dosage, etc. It appeared that the change in chemotherapy itself had an effect on neuropathic symptoms. Regarding the change in chemotherapy, the therapeutic agent was switched from oxaliplatin to irinotecan; the cause was unknown, but some effects of these two drugs were suggested. Future investigation, including the examination of genetic mutations, is necessary.
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Affiliation(s)
- Keiji Mashimo
- Dept. of Pharmacy, Japanese Red Cross Wakayama Medical Center
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Muratsu J, Taniyama Y, Sanada F, Morishima A, Sakaguchi K, Rakugi H, Morishita R. SO023HEPATOCYTE GROWTH FACTOR (HGF) PRECLUDE HIGH-FAT DIET-INDUCED OBESITY AND IMPROVED INSULIN RESISTANCE IN MICE. Nephrol Dial Transplant 2020. [DOI: 10.1093/ndt/gfaa139.so023] [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: 11/12/2022] Open
Abstract
Abstract
Background and Aims
Obesity and its associated chronic inflammation in adipose tissue initiate insulin resistance, which is related to several pathologies including hypertension and atherosclerosis. Previous reports demonstrated that circulating hepatocyte growth factor (HGF) level was associated with obesity and type 2 diabetes. However, its precise role in obesity and related-pathology is unclear.
Method
In this experiment, cardiac-specific over-expression of human HGF in mice (HGF-Tg mice) which showed 4-5 times higher serum HGF levels than wild-type mice were used. We chose cardiac specific HGF overexpression, as other strain of HGF transgenic mice such as liver and kidney specific HGF overexpression mice develop cancer and cystic diseases, which are rare in the heart. In the present study, using HGF-Tg mice and anti-HGF neutralizing antibody (HGF-Ab), we explored the role of HGF in obese and insulin resistance induced by high fat diet (HFD) for 14 weeks (200 or 400ug/week).
Results
With normal chow diet (ND), there were no significant changes in body weight between WT and HGF-Tg mice. While body weight in wild-type mice fed with HFD for 14 weeks was significantly increased accompanied with insulin resistance, HGF-Tg mice prevented body weight gain and insulin resistance. Insulin resistance in obesity arises from the combination of altered functions of insulin target cells (e.g., liver, skeletal muscle, and adipose tissue) and the accumulation of macrophages that secrete pro-inflammatory mediators in adipose tissue. The accumulation of macrophages and elevated levels of inflammatory mediators in adipose tissue were significantly inhibited in HGF-Tg mice as compared to wild-type mice. In the gWAT, the mRNA levels of the mature macrophage marker F4/80, the chemoattractants, MCP-1 and CXCL2, and the inflammatory cytokines, such as TNF-α and iNOS, were significantly increased in WT mice fed with HFD. However, these levels were markedly reduced in HGF-Tg mice fed with HFD. Additionally, activation of Akt by insulin administration was significantly reduced in the gWAT SM, and liver by HFD; however, this activation was restored in HGF-Tg mice. Moreover, insulin-induced Akt signaling was decreased in HGF-Ab groups as compared to saline group under HFD condition. Importantly, HFD significantly increased the level of HGF mRNA by approximately 2 fold in gWAT, SM, and liver without changing cMet expression. All together, these data indicate that the HGF as one of the systemic gWAT, SM, and liver-derived growth factor plays a role in compensatory mechanism against insulin-resistance through the at least anti-inflammatory effect in adipose tissue. The HFD-induced obesity in wild-type mice treated with HGF-neutralizing antibody showed an exacerbated response to the glucose tolerance test.
Conclusion
HGF suppresses inflammation in adipose tissue induced by a high-fat diet, and as a result improves systemic insulin resistance. These gain-of-function and loss-of-function studies demonstrated that the elevated HGF level induced by HFD have protective role against obesity and insulin resistance.
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Affiliation(s)
- Jun Muratsu
- Osaka University Graduate School of Medicine, Department of Clinical Gene Therapy, Suita, Japan
- Sumitomo Hospital, Department of Nephrology and Hypertension, Osaka, Japan
| | - Yoshiaki Taniyama
- Osaka University Graduate School of Medicine, Department of Clinical Gene Therapy, Suita, Japan
| | - Fumihiro Sanada
- Osaka University Graduate School of Medicine, Department of Clinical Gene Therapy, Suita, Japan
| | - Atsuyuki Morishima
- Sumitomo Hospital, Department of Nephrology and Hypertension, Osaka, Japan
| | | | - Hiromi Rakugi
- Osaka University Graduate School of Medicine, Department of Geriatric Medicine and Nephrology, Suita, Japan
| | - Ryuichi Morishita
- Osaka University Graduate School of Medicine, Department of Clinical Gene Therapy, Suita, Japan
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Komada H, Hirota Y, So A, Nakamura T, Okuno Y, Fukuoka H, Iguchi G, Takahashi Y, Sakaguchi K, Ogawa W. Insulin secretion and sensitivity before and after surgical treatment for aldosterone-producing adenoma. Diabetes Metab 2019; 46:236-242. [PMID: 31676325 DOI: 10.1016/j.diabet.2019.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 09/22/2019] [Accepted: 10/14/2019] [Indexed: 11/16/2022]
Abstract
AIM Primary aldosteronism, which is usually caused by an aldosterone-producing tumour, affects glucose metabolism. The effects of this condition on insulin secretion and insulin sensitivity have remained unclear, however. To gain insight into the influence of primary aldosteronism on glucose tolerance, various parameters related to insulin secretion or insulin sensitivity in patients with an aldosterone-producing tumour were comprehensively analyzed. METHODS To assess 14 patients with an aldosterone-producing tumour, hyperglycaemic and hyperinsulinaemic-euglycaemic clamp tests as well as oral glucose tolerance tests (OGTTs) were performed before and after tumour excision. Time between presurgical analysis and surgery was 27-559 (194±132) days, and 14-142 (51±38) days between surgery and postsurgical analysis. Various parameters related to insulin secretion or sensitivity as determined by OGTT as well as hyperglycaemic and hyperinsulinaemic-euglycaemic clamp analyses were evaluated. RESULTS Surgical treatment of tumours ameliorated hypokalaemia and reduced plasma aldosterone levels. First and second phases of insulin secretion during the hyperglycaemic clamp, as well as the insulinogenic index and total insulin secretion measured during OGTT, were also improved after surgery. In addition, the insulin sensitivity index determined during the hyperinsulinaemic-euglycaemic clamp was reduced after surgery. CONCLUSION Primary aldosteronism impairs insulin secretion.
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Affiliation(s)
- H Komada
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Y Hirota
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan.
| | - A So
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - T Nakamura
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Y Okuno
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - H Fukuoka
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - G Iguchi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - Y Takahashi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - K Sakaguchi
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
| | - W Ogawa
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
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Sakaguchi K, Nakatsukasa K, Koyama H, Matsuda T, Kato M, Ouchi Y, Morita M, Taguchi T. Effect of denosumab on low bone mineral density in postmenopausal Japanese early breast cancer patients receiving aromatase nhibitors: 36-month results. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.031] [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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Tamura Y, Santo M, Araki Y, Matsubayashi H, Takaya Y, Doshida M, Sakaguchi K, Yamaguchi K, Mizuta S, Kim N, Okuno K, Kitaya K, Takeuchi T, Ishikawa T. 29. CHROMOSOMAL COPY NUMBER ANALYSIS OF CHORIONIC VILLUS FROM SPONTANEOUS ABORTION BY NEXT GENERATION SEQUENCING. Reprod Biomed Online 2019. [DOI: 10.1016/j.rbmo.2019.04.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Muratsu J, Taniyama Y, Sanada F, Shibata K, Ohtsu R, Morishima A, Sakaguchi K, Morishita R. FP256Blockade of Periostin Protected from development of inflammation in rhabdomyolysis-induced acute kidney injury. Nephrol Dial Transplant 2019. [DOI: 10.1093/ndt/gfz106.fp256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | - Fumihiro Sanada
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kana Shibata
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Rei Ohtsu
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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Abdel-Ghani MA, Yanagawa Y, Balboula AZ, Sakaguchi K, Kanno C, Katagiri S, Takahashi M, Nagano M. Astaxanthin improves the developmental competence of in vitro-grown oocytes and modifies the steroidogenesis of granulosa cells derived from bovine early antral follicles. Reprod Fertil Dev 2019; 31:272-281. [DOI: 10.1071/rd17527] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 06/29/2018] [Indexed: 12/22/2022] Open
Abstract
In this study we investigated the effect of astaxanthin (Ax), which exhibits strong antioxidant activity, during invitro growth (IVG) on the developmental competence of oocytes and steroidogenesis of granulosa cells derived from early antral follicles. Bovine oocyte–cumulus–granulosa complexes collected from early antral follicles were cultured for 12 days in the presence or absence (control) of 500µM Ax. The viability of oocytes and antrum formation in the granulosa cell layer during IVG culture were greater in the presence than absence of Ax (P<0.05). Regardless of Ax treatment, 17β-oestradiol production increased during IVG culture; however, progesterone production was significantly lower in the presence than absence of Ax (P<0.05). Reactive oxygen species levels were lower in Ax-treated oocytes than in controls after IVG (P<0.05). Although nuclear maturation and cleavage rates did not differ between the Ax-treated and control groups, Ax treatment led to weaker cathepsin B activity in oocytes and better blastocyst rates than in controls (P<0.05). Accordingly, Ax treatment during IVG increased the total number of cells in blastocysts (P<0.05). These results indicate that Ax supplementation of IVG medium improves the quality of bovine oocytes due to its antioxidative effects on growing oocytes and its suppression of the luteinisation of granulosa cells.
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Sakaguchi K, Yanagawa Y, Yoshioka K, Suda T, Kawano K, Katagiri S, Nagano M. 120 Effects of antral follicle count in ovaries on follicular development and endocrine dynamics of follicle-stimulating hormone and steroid hormones in cattle. Reprod Fertil Dev 2019. [DOI: 10.1071/rdv31n1ab120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The antral follicle count (AFC) in mammalian ovaries positively correlates with female fertility. We have reported previously that cumulus-oocyte complexes derived from high-AFC ovaries produce more oestradiol-17β (E2) and have higher developmental competence than those from low-AFC ovaries in in vitro growth (Sakaguchi et al. WCRB2017, Okinawa, Japan; 1-15). We also indicated that follicular growth was different between high- and low-AFC cows, and that follicular deviation occurred earlier in high-AFC cows (Nagai et al. 2015 Anim. Reprod. Sci. 163, 172-178). To clarify the causes of the higher E2 production and earlier follicular deviation in high-AFC cows, we investigated circulating steroid hormones and FSH during the oestrous cycle, as well as steroidogenesis in follicles at different phases of the oestrous cycle. Four high-AFC cows (>40 follicles) and 3 low-AFC cows (<20 follicles) based on the peak AFC were used. We ablated their follicles 8 days after oestrus and administered prostaglandin F2α on Day 12. After 40h of prostaglandin F2α injection, follicular fluid of a dominant follicle (preovulatory phase) was collected and subordinate follicles were ablated. Gonadotropin-releasing hormone was then injected to induce LH surge. Seven days after gonadotropin-releasing hormone, follicular fluids were collected from dominant follicles (luteal phase) and all follicles were ablated. Four days later, follicular fluids were again collected from the largest follicles (selection phase). Steroid hormones in follicular fluids were measured by enzyme immunoassay. Throughout the study, we daily examined ovaries by ultrasonography and collected blood for hormone measurements. We analysed data using two-way ANOVA followed by Tukey-Kramer or Student’s t test. The number of small follicles (<4mm) was greater in high-AFC than low-AFC groups (low v. high=7.6v. 46.9; P<0.05), whereas that of large follicles (>8mm) was similar between groups (0.8v. 0.8) at any time. Although the number of medium-sized follicles (4-8mm) was not affected in the low-AFC group (4.2-6.7) after follicle ablation, the number increased from 1 to 4 days (10.5 to 17.8) then decreased 6 days after follicle ablation (11.5) in the high-AFC group, which means that degradation of follicles occurs at selection phase in high-AFC cows. Peripheral FSH concentration was higher (low v. high: 4.7v. 2.1 ng/mL), but E2 concentration was lower in the low-AFC (2.4 pg/mL) than high-AFC group (3.3 pg/mL) during the selection phase (P<0.05). Although follicular diameter was similar in both groups at any phase, E2 (low v. high=333.8v. 1127.4 ng/mL; P<0.05) and testosterone (low v. high=16.7v. 35.0 ng/mL; P=0.07), but not progesterone, concentrations were higher in the high-AFC than low-AFC group in the preovulatory phase. These findings suggest that a lower response to FSH causes low E2 production in the low-AFC group, resulting in high FSH concentration and a consistent development of medium-sized follicles. Conversely, higher E2 concentration suppresses FSH secretion, resulting in obvious degradation of follicles in the high-AFC group at the selection phase.
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Mashimo K, Tsubaki M, Takeda T, Asano R, Jinushi M, Imano M, Satou T, Sakaguchi K, Nishida S. RANKL-induced c-Src activation contributes to conventional anti-cancer drug resistance and dasatinib overcomes this resistance in RANK-expressing multiple myeloma cells. Clin Exp Med 2018; 19:133-141. [DOI: 10.1007/s10238-018-0531-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 09/27/2018] [Indexed: 12/23/2022]
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Sakaguchi K, Nakatsukasa K, Taguchi T. Phase II clinical trial of first-line eribulin plus trastuzumab for advanced or recurrent HER2-positive breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy272.302] [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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Takeuchi T, Saito C, Mizuta S, Yamaguchi K, Takaya Y, Doshida M, Sakaguchi K, Kitaya K, Matsubayashi H, Ishikawa T. How many attempts should we undergo ICSI with ejaculated sperm in virtual azoospermic patients? Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Horie T, Yamazaki S, Hanada S, Kobayashi S, Tsukamoto T, Haruna T, Sakaguchi K, Sakai K, Obara H, Morishita K, Saigo K, Shintani Y, Kubo K, Hoshino J, Oda T, Kaneko E, Nishikido M, Ioji T, Kaneda H, Fukushima M. Outcome From a Randomized Controlled Clinical Trial - Improvement of Peripheral Arterial Disease by Granulocyte Colony-Stimulating Factor-Mobilized Autologous Peripheral-Blood-Mononuclear Cell Transplantation (IMPACT). Circ J 2018; 82:2165-2174. [PMID: 29877199 DOI: 10.1253/circj.cj-17-1220] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND The clinical usefulness of peripheral blood (PB) mononuclear cell (MNC) transplantation in patients with peripheral arterial disease (PAD), especially in those with mild-to-moderate severity, has not been fully clarified.Methods and Results:A randomized clinical trial was conducted to evaluate the efficacy and safety of granulocyte colony-stimulating factor (G-CSF)-mobilized PBMNC transplantation in patients with PAD (Fontaine stage II-IV and Rutherford category 1-5) caused by arteriosclerosis obliterans or Buerger's disease. The primary endpoint was progression-free survival (PFS). In total, 107 subjects were enrolled. At baseline, Fontaine stage was II/III in 82 patients and IV in 21, and 54 patients were on hemodialysis. A total of 50 patients had intramuscular transplantation of PBMNC combined with standard of care (SOC) (cell therapy group), and 53 received SOC only (control group). PFS tended to be improved in the cell therapy group than in the control group (P=0.07). PFS in Fontaine stage II/III subgroup was significantly better in the cell therapy group than in the control group. Cell therapy-related adverse events were transient and not serious. CONCLUSIONS In this first randomized, large-scale clinical trial of G-CSF-mobilized PBMNC transplantation, the cell therapy was tolerated by a variety of PAD patients. The PBMNC therapy was significantly effective for inhibiting disease progression in mild-to-moderate PAD.
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Affiliation(s)
| | - Seiji Yamazaki
- Cardiovascular Center, Sapporo Higashi Tokushukai Hospital
| | | | - Shuzo Kobayashi
- Department of Kidney Disease and Transplant Center, Shonan Kamakura General Hospital
| | - Tatsuo Tsukamoto
- Nephrology and Dialysis, The Tazuke Kofukai Medical Research Institute, Kitano Hospital
| | - Tetsuya Haruna
- Cardiovascular Center, The Tazuke Kofukai Medical Research Institute, Kitano Hospital
| | | | - Ken Sakai
- Department of Nephrology, Toho University Faculty of Medicine
| | - Hideaki Obara
- Department of Surgery, Keio University School of Medicine
| | | | - Kenichi Saigo
- Division of Surgery, NHO Chiba-East National Hospital
| | | | - Kohmei Kubo
- Department of Hematology, Aomori Prefectural Central Hospital
| | | | - Teiji Oda
- Department of Thoracic and Cardiovascular Surgery, Shimane University Faculty of Medicine
| | - Eiji Kaneko
- Institute of Education, Tokyo Medical and Dental University
| | | | - Tetsuya Ioji
- Translational Research Informatics Center, Foundation for Biomedical Research and Innovation
| | - Hideaki Kaneda
- Translational Research Informatics Center, Foundation for Biomedical Research and Innovation
| | - Masanori Fukushima
- Translational Research Informatics Center, Foundation for Biomedical Research and Innovation
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Usuba A, Miyazawa M, Motoki R, Sakaguchi K, Suzuki K, Kamitani T, Takahashi A. Oxygen Transport Capacity and Hemodynamic Effect of Newly Developed Artificial Blood “Neo Red Cells (NRC)”. Int J Artif Organs 2018. [DOI: 10.1177/039139889301600709] [Citation(s) in RCA: 12] [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: 10/17/2022]
Abstract
The purpose of this study was to evaluate liposome-encapsulated hemoglobin, named Neo Red Cells (NRC), on hemodynamics and oxygen-transport capacity in a blood exchange experiment. The experiment was carried out in nine mongrel dogs. Depending on the percentage of blood exchange with NRC, the animals were divided into two groups; Group I (4 animals with an exchange rate less than 88%), and Group II (5 animals with an exchange rate over 88%). After blood exchange, total peripheral vascular resistance index (TPRI) decreased and cardiac index (CI) increased. These changes were more marked in Group II than in Group I, thus showing that NRC relieved the burden on the heart, probably due to the fact that the viscosity of NRC is 2 cp which is less than 1/3 that of whole blood. The oxygen binding capacity per 1g hemoglobin in NRC was 2-4 times as much as red blood cells. Thus, NRC was superior to natural red blood cells in terms of oxygen transport capacity and its effects on the circulatory system.
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Affiliation(s)
- A. Usuba
- First Department of Surgery, Fukushima Medical College, Fukushima City
| | - M. Miyazawa
- First Department of Surgery, Fukushima Medical College, Fukushima City
| | - R. Motoki
- First Department of Surgery, Fukushima Medical College, Fukushima City
| | - K. Sakaguchi
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
| | - K. Suzuki
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
| | - T. Kamitani
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
| | - A. Takahashi
- Technical R & D Division, Terumo Corp, Kanagawa - Japan
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26
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Tsubaki M, Takeda T, Tomonari Y, Mashimo K, Koumoto YI, Hoshida S, Itoh T, Imano M, Satou T, Sakaguchi K, Nishida S. The MIP-1α autocrine loop contributes to decreased sensitivity to anticancer drugs. J Cell Physiol 2017; 233:4258-4271. [PMID: 29057477 DOI: 10.1002/jcp.26245] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 10/18/2017] [Indexed: 01/04/2023]
Abstract
Several autocrine soluble factors, including macrophage inflammatory protein-1α (MIP-1α), tumor necrosis factor-α, and hepatocyte growth factor, promote cell survival and growth in multiple myeloma (MM) cells. We hypothesized that inhibition of the MIP-1α autocrine loop may enhance the cytotoxic effect of anticancer drugs in MM cell lines. In the present study, an MIP-1α neutralizing antibody suppressed cell proliferation and enhanced the cytotoxic effect of melphalan or bortezomib on MM cells. In addition, melphalan resistance cells (RPMI8226/L-PAM and HS-sultan/L-PAM cells) secreted MIP-1α and neutralizing antibody of MIP-1α partially overcame melphalan resistance. Moreover, combination treatment with MIP-1α neutralizing antibody and melphalan or bortezomib inhibited extracellular signal regulated kinase 1/2 (ERK1/2), Akt, and mammalian target of rapamycin (mTOR) activation, Bcl-2, Bcl-xL, and Survivin expression, and upregulated the expression of Bim and cleaved Poly (ADP-ribose) polymerase (PARP). Treatment of IM9 cells with MIP-1α siRNA suppressed the activation of ERK1/2, Akt, and mTOR, and enhanced the cytotoxic effect of melphalan and bortezomib. These results indicate that MIP-1α neutralizing antibodies or MIP-1α siRNA enhance the cytotoxic effect of melphalan and bortezomib by suppressing the chemokine receptor/ERK and chemokine receptor/Akt/mTOR pathways. The inhibition of MIP-1α may thus provide a new therapeutic approach to control tumor progression and bone destruction in patients with MM.
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Affiliation(s)
- Masanobu Tsubaki
- Faculty of Pharmacy, Division of Pharmacotherapy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Tomoya Takeda
- Faculty of Pharmacy, Division of Pharmacotherapy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Yoshika Tomonari
- Faculty of Pharmacy, Division of Pharmacotherapy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Kenji Mashimo
- Faculty of Pharmacy, Division of Pharmacotherapy, Kindai University, Kowakae, Higashi-Osaka, Japan.,Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Yu-Ichi Koumoto
- Faculty of Pharmacy, Division of Pharmacotherapy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Sachi Hoshida
- Faculty of Pharmacy, Division of Pharmacotherapy, Kindai University, Kowakae, Higashi-Osaka, Japan
| | - Tatsuki Itoh
- Faculty of Agriculture, Department of Food Science and Nutrition, Kindai University, Nara, Nara, Japan
| | - Motohiro Imano
- Faculty of Medicine, Department of Surgery, Kindai University, Osakasayama, Osaka, Japan
| | - Takao Satou
- Faculty of Medicine, Department of Pathology, Kindai University, Osakasayama, Osaka, Japan
| | - Katsuhiko Sakaguchi
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Shozo Nishida
- Faculty of Pharmacy, Division of Pharmacotherapy, Kindai University, Kowakae, Higashi-Osaka, Japan
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27
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Oki R, Kondoh C, Miura Y, Ozaki Y, Tanabe Y, Sakaguchi K, Kurosawa K, Urakami S, Okaneya T, Takano T. S-1 plus cisplatin combination therapy in patients with urachal carcinoma: A retrospective study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx661.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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28
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Fujiwara D, Tsubaki M, Takeda T, Tomonari Y, Koumoto YI, Sakaguchi K, Nishida S. Statins induce apoptosis through inhibition of Ras signaling pathways and enhancement of Bim and p27 expression in human hematopoietic tumor cells. Tumour Biol 2017; 39:1010428317734947. [PMID: 28990465 DOI: 10.1177/1010428317734947] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Recently, statins have been demonstrated to improve cancer-related mortality or prognosis in patients of various cancers. However, the details of the apoptosis-inducing mechanisms remain unknown. This study showed that the induction of apoptosis by statins in hematopoietic tumor cells is mediated by mitochondrial apoptotic signaling pathways, which are activated by the suppression of mevalonate or geranylgeranyl pyrophosphate biosynthesis. In addition, statins decreased the levels of phosphorylated extracellular signal-regulated kinase 1/2 and mammalian target of rapamycin through suppressing Ras prenylation. Furthermore, inhibition of extracellular signal-regulated kinase 1/2 and mammalian target of rapamycin by statins induced Bim expression via inhibition of Bim phosphorylation and ubiquitination and cell-cycle arrest at G1 phase via enhancement of p27 expression. Moreover, combined treatment of U0126, a mitogen-activated protein kinase kinase 1/2 inhibitor, and rapamycin, a mammalian target of rapamycin inhibitor, induced Bim and p27 expressions. The present results suggested that statins induce apoptosis by decreasing the mitochondrial transmembrane potential, increasing the activation of caspase-9 and caspase-3, enhancing Bim expression, and inducing cell-cycle arrest at G1 phase through inhibition of Ras/extracellular signal-regulated kinase and Ras/mammalian target of rapamycin pathways. Therefore, our findings support the use of statins as potential anticancer agents or concomitant drugs of adjuvant therapy.
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Affiliation(s)
- Daichiro Fujiwara
- 1 Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan.,2 Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Masanobu Tsubaki
- 1 Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Tomoya Takeda
- 1 Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Yoshika Tomonari
- 1 Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Yu-Ichi Koumoto
- 1 Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
| | - Katsuhiko Sakaguchi
- 2 Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Shozo Nishida
- 1 Division of Pharmacotherapy, School of Pharmacy, Kindai University, Higashi-Osaka, Japan
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29
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Villasante A, Sakaguchi K, Kim J, Cheung N, Nakayama M, Parsa H, Okano T, Shimizu T, Vunjak-Novakovic G. Vascularized Tissue-Engineered Model for Studying Drug Resistance in Neuroblastoma. Am J Cancer Res 2017; 7:4099-4117. [PMID: 29158813 PMCID: PMC5695000 DOI: 10.7150/thno.20730] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/11/2017] [Indexed: 01/26/2023] Open
Abstract
Neuroblastoma is a vascularized pediatric tumor derived from neural crest stem cells that displays vasculogenic mimicry and can express a number of stemness markers, such as SOX2 and NANOG. Tumor relapse is the major cause of succumbing to this disease, and properties attributed to cancer stem-like cells (CSLC), such as drug-resistance and cell plasticity, seem to be the key mechanisms. However, the lack of controllable models that recapitulate the features of human neuroblastoma limits our understanding of the process and impedes the development of new therapies. In response to these limitations, we engineered a perfusable, vascularized in vitro model of three-dimensional human neuroblastoma to study the effects of retinoid therapy on tumor vasculature and drug-resistance. METHODS The in vitro model of neuroblastoma was generated using cell-sheet engineering and cultured in a perfusion bioreactor. Firstly, we stacked three cell sheets containing SKNBE(2) neuroblastoma cells and HUVEC. Then, a vascular bed made of fibrin, collagen I and HUVEC cells was placed onto a collagen-gel base with 8 microchannels. After gelling, the stacked cell sheets were placed on the vascular bed and cultured in the perfusion bioreactor (perfusion rate: 0.5 mL/min) for 4 days. Neuroblastoma models were treated with 10μM isotretionin in single daily doses for 5 days. RESULTS The bioengineered model recapitulated vasculogenic mimicry (vessel-like structure formation and tumor-derived endothelial cells-TECs), and contained CSLC expressing SOX2 and NANOG. Treatment with Isotretinoin destabilized vascular networks but failed to target vasculogenic mimicry and augmented populations of CSLCs expressing high levels of SOX2. Our results suggest that CSLCs can transdifferentiate into drug resistant CD31+-TECs, and reveal the presence of an intermediate state STEC (stem tumor-derived endothelial cell) expressing both SOX2 and CD31. CONCLUSION Our results reveal some roles of SOX2 in drug resistance and tumor relapse, and suggest that SOX2 could be a therapeutic target in neuroblastoma.
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30
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Tsubaki M, Fujiwara D, Takeda T, Kino T, Tomonari Y, Itoh T, Imano M, Satou T, Sakaguchi K, Nishida S. The sensitivity of head and neck carcinoma cells to statins is related to the expression of their Ras expression status, and statin-induced apoptosis is mediated via suppression of the Ras/ERK and Ras/mTOR pathways. Clin Exp Pharmacol Physiol 2017; 44:222-234. [PMID: 27805296 DOI: 10.1111/1440-1681.12690] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [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: 02/29/2016] [Revised: 10/25/2016] [Accepted: 10/27/2016] [Indexed: 12/30/2022]
Abstract
Statins induce apoptosis of tumour cells by inhibiting the prenylation of small G-proteins. However, the details of the apoptosis-inducing mechanisms remain poorly understood. The present study showed that the induction of apoptosis by statins in four different human head and neck squamous cell carcinoma (HNSCC) cell lines, HSC-3, HEp-2, Ca9-22, and SAS cells was mediated by increased caspase-3 activity. Statins induced apoptosis by the suppression of geranylgeranyl pyrophosphate biosynthesis. Furthermore, statins decreased the levels of phosphorylated ERK and mTOR by inhibiting the membrane localization of Ras and enhancing Bim expression in HSC-3 and HEp-2 cells. We also found that in all the cell types analyzed, the IC50 values for fluvastatin and simvastatin were highest in HEp-2 cells. In addition, HSC-3, Ca9-22, and SAS cells had higher Ras expression and membrane localization, higher activation of ERK1/2 and mTOR, and lower levels of Bim expression than HEp-2 cells. Our results indicate that statins induce apoptosis by increasing the activation of caspase-3 and by enhancing Bim expression through inhibition of the Ras/ERK and Ras/mTOR pathways. Furthermore, the sensitivity of HNSCC cells to statin treatment was closely related to Ras expression and prenylation levels, indicating that statins may act more effectively against tumours with high Ras expression and Ras-variability. Therefore, our findings support the use of statins as potential anticancer agents.
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Affiliation(s)
- Masanobu Tsubaki
- Division of Pharmacotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, Japan
| | - Daichiro Fujiwara
- Division of Pharmacotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, Japan.,Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Tomoya Takeda
- Division of Pharmacotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, Japan
| | - Toshiki Kino
- Division of Pharmacotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, Japan
| | - Yoshika Tomonari
- Division of Pharmacotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, Japan
| | - Tatsuki Itoh
- Department of Food Science and Nutrition, Kindai University School of Agriculture, Nara, Nara, Japan
| | - Motohiro Imano
- Department of Surgery, Kindai University School of Medicine, Osakasayama, Osaka, Japan
| | - Takao Satou
- Department of Pathology, Kindai University School of Medicine, Osakasayama, Osaka, Japan
| | - Katsuhiko Sakaguchi
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Shozo Nishida
- Division of Pharmacotherapy, Kindai University School of Pharmacy, Kowakae, Higashi-Osaka, Japan
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31
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Takahashi H, Inoue J, Sakaguchi K, Takagi M, Mizutani S, Inazawa J. Autophagy is required for cell survival under L-asparaginase-induced metabolic stress in acute lymphoblastic leukemia cells. Oncogene 2017; 36:4267-4276. [PMID: 28346428 PMCID: PMC5537607 DOI: 10.1038/onc.2017.59] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 01/31/2017] [Accepted: 02/07/2017] [Indexed: 12/18/2022]
Abstract
L-asparaginase has been used for more than three decades in acute lymphoblastic leukemia (ALL) patients and remains an essential drug in the treatment of ALL. Poor response to L-asparaginase is associated with increased risk of therapeutic failure in ALL. However, both the metabolic perturbation and molecular context of L-asparaginase-treated ALL cells has not been fully elucidated. Here we identify that treatment with L-asparaginase results in metabolic shutdown via the reduction of both glycolysis and oxidative phosphorylation, accompanied by mitochondrial damage and activation of autophagy. The autophagy is involved in reducing reactive oxygen species (ROS) level by eliminating injured mitochondria. Inhibition of autophagy enhances L-asparaginase-induced cytotoxicity and overcomes the acquired resistance to L-asparaginase in ALL cells. The ROS-p53-positive feedback loop is an essential mechanism of this synergistic cytotoxicity. Thus, our findings provide the rationale for the future development of combined treatment of L-asparaginase and anti-autophagy drug in ALL patients.
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Affiliation(s)
- H Takahashi
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Pediatrics, Hamamatsu University School of Medicine, Shizuoka, Japan.,Bioresource Research Center, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - J Inoue
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - K Sakaguchi
- Department of Pediatrics, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - M Takagi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - S Mizutani
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - J Inazawa
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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32
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Fujiwara D, Mashimo K, Kimura K, Noda A, Taki K, Yoshibayashi H, Takeda T, Tsubaki M, Nishida S, Sakaguchi K. [Influence of Next-Day Administration of Pegfilgrastim after FEC100 Chemotherapy in Japanese with Breast Cancer on Neutrophil Count]. Gan To Kagaku Ryoho 2017; 44:149-152. [PMID: 28223672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Febrile neutropenia(FN)is one of the serious treatment-related toxicities after FEC100(5-fluorouracil 500mg/m2, epiru- bicin 100mg/m2, cyclophosphamide 500 mg/m2)chemotherapy for breast cancer. Granulocyte-colony stimulating factor(GCSF) is used as a support therapy for FN. Thus, we evaluated retrospectively the safety of administering pegfilgrastim the day after FEC100 chemotherapy in Japanese patients with breast cancer as compared with lenograstim. Grade 3 or 4 neutropenia was observed in 91.7% patients after pegfilgrastim administration and in 63.2% after lenograstim. The incidence rate of FN was 7.0%after pegfilgrastim administration and 9.7%after lenograstim, a difference that was not significantly different(p= 0.741). The mean relative dose intensity was good at 0.98 for pegfilgrastim and 0.97 for lenograstim. In conclusion, pegfilgrastim is not inferior to lenograstim in the incidence of FN. However, we do not recommend administering pegfilgrastim on the day after FEC100 therapy because it causes more severe neutropenia and has a high risk of FN. The timing of administration of pegfilgrastim in FEC100 therapy requires further study.
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Affiliation(s)
- Daichiro Fujiwara
- Dept. of Pharmacy, Japanese Red Cross Society Wakayama Medical Center
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33
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Sakaguchi K, Nevarez JG, Del Piero F. Salmonella Enterica Serovar Pomona Infection in Farmed Juvenile American Alligators (Alligator Mississippiensis). Vet Pathol 2016; 54:316-319. [DOI: 10.1177/0300985816677149] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A fatal epizootic of salmonellosis occurred in farmed juvenile American alligators in Louisiana. Six animals were examined. Gross lesions included severe fibrinonecrotizing enterocolitis, necrotizing splenitis, coelomic effusion, and perivisceral and pulmonary edema. Microscopic examination revealed severe necrotizing enterocolitis and splenitis with intralesional bacteria and pneumocyte necrosis with fibrin thrombi. Salmonella enterica serovar Pomona was isolated from intestine and lung. Clinical salmonellosis is a rare finding in reptiles and salmonellosis caused by S. Pomona is not previously reported in American alligators. Since S. Pomona is a commonly isolated Salmonella serotype from patients with reptile-associated salmonellosis in the United States, and since alligator meat is consumed and the skin is exported to numerous countries, risk of human and animal infection should be considered.
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Affiliation(s)
- K. Sakaguchi
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
| | - J. G. Nevarez
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
| | - F. Del Piero
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA
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34
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Tsubaki M, Mashimo K, Takeda T, Kino T, Fujita A, Itoh T, Imano M, Sakaguchi K, Satou T, Nishida S. Statins inhibited the MIP-1α expression via inhibition of Ras/ERK and Ras/Akt pathways in myeloma cells. Biomed Pharmacother 2016; 78:23-29. [DOI: 10.1016/j.biopha.2015.12.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 12/15/2015] [Indexed: 11/28/2022] Open
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35
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Tsubaki M, Takeda T, Kino T, Obata N, Itoh T, Imano M, Mashimo K, Fujiwara D, Sakaguchi K, Satou T, Nishida S. Statins improve survival by inhibiting spontaneous metastasis and tumor growth in a mouse melanoma model. Am J Cancer Res 2015; 5:3186-3197. [PMID: 26693069 PMCID: PMC4656740] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 09/10/2015] [Indexed: 06/05/2023] Open
Abstract
Metastatic melanoma is a life-threatening disease for which no effective treatment is currently available. In melanoma cells, Rho overexpression promotes invasion and metastasis. However, the effect of statins on spontaneous metastasis and tumor growth remains unclear. In the present study, we investigated the mechanism of statin-mediated tumor growth and metastasis inhibition in an in vivo model. We found that statins significantly inhibited spontaneous metastasis and tumor growth. Statins inhibited the mRNA expression and enzymatic activities of matrix metalloproteinases (MMPs) in vivo and also suppressed the mRNA and protein expression of very late antigens (VLAs). Moreover, statins inhibited the prenylation of Rho as well as the phosphorylation of LIM kinase, serum response factor (SRF), and c-Fos downstream of the Rho signaling pathway. In addition, statins enhanced p53, p21, and p27 expression and reduced phosphorylation of cyclin-dependent kinase and expression of cyclin D1 and E2. These results indicate that statins suppress Rho signaling pathways, thereby inhibiting tumor metastasis and growth. Furthermore, statins markedly improved the survival rate in a metastasis model, suggesting that statins have potential clinical applications for the treatment of metastatic cancers.
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Affiliation(s)
- Masanobu Tsubaki
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Tomoya Takeda
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Toshiki Kino
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Naoya Obata
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Tatsuki Itoh
- Department of Food Science and Nutrition, Kinki University School of AgricultureNara, Japan
| | - Motohiro Imano
- Department of Surgery, Kinki University School of MedicineOsakasayama, Osaka, Japan
| | - Kenji Mashimo
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical CenterWakayama, Japan
| | - Daichiro Fujiwara
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical CenterWakayama, Japan
| | - Katsuhiko Sakaguchi
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical CenterWakayama, Japan
| | - Takao Satou
- Department of Pathology, Kinki University School of MedicineOsakasayama, Osaka, Japan
| | - Shozo Nishida
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
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36
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Iguchi T, Inoue D, Tatsukawa M, Yabushita K, Sakaguchi K, Kanazawa S. Transpulmonary radiofrequency ablation of hepatocellular carcinoma contiguous to the heart. Diagn Interv Imaging 2015; 96:1207-9. [PMID: 26277644 DOI: 10.1016/j.diii.2015.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 06/13/2015] [Accepted: 06/15/2015] [Indexed: 11/16/2022]
Affiliation(s)
- T Iguchi
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan; Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
| | - D Inoue
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - M Tatsukawa
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - K Yabushita
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - K Sakaguchi
- Department of Internal Medicine, Fukuyama City Hospital, 5-23-1 Zao-cho, Fukuyama 721-8511, Japan.
| | - S Kanazawa
- Department of Radiology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
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37
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Sugiyama T, Yoshioka H, Sakaguchi K, Kim YT, Oda H. An evidence-based perspective on vitamin D and the growing skeleton. Osteoporos Int 2015; 26:1447-8. [PMID: 25448838 DOI: 10.1007/s00198-014-2975-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 11/19/2014] [Indexed: 10/24/2022]
Affiliation(s)
- T Sugiyama
- Department of Orthopaedic Surgery, Saitama Medical University, 38 Morohongo, Moroyama, Saitama, 350-0495, Japan,
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38
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Tsubaki M, Takeda T, Sakamoto K, Shimaoka H, Fujita A, Itoh T, Imano M, Mashimo K, Fujiwara D, Sakaguchi K, Satou T, Nishida S. Bisphosphonates and statins inhibit expression and secretion of MIP-1α via suppression of Ras/MEK/ERK/AML-1A and Ras/PI3K/Akt/AML-1A pathways. Am J Cancer Res 2014; 5:168-179. [PMID: 25628928 PMCID: PMC4300689] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 11/28/2014] [Indexed: 06/04/2023] Open
Abstract
Osteolytic bone disease in multiple myeloma (MM) is associated with upregulated osteoclast activity. Macrophage inflammatory protein-1α (MIP-1α) is crucially involved in the development of osteolytic bone lesions in MM. We previously reported that minodronate inhibited lipopolysaccharide-induced MIP-1α secretion in mouse myeloma cells. However, it remains unknown whether bisphosphonates and statins inhibit MIP-1α secretion by human MM cells. In present study, we investigated whether bisphosphonates and statins had any inhibitory effect on MIP-1α secretion by human myeloma cells and the mechanism underlying this effect. In this study, we found that bisphosphonates and statins inhibited MIP-1α mRNA and MIP-1α secretion and suppressed extracellular signal-regulated kinase 1/2 (ERK1/2) and Akt phosphorylation by inhibiting Ras prenylation. Moreover, bisphosphonates and statins suppressed the expression of acute myeloid leukemia-1A (AML-1A) mRNA, a MIP-1α transcription factor. These results indicate that bisphosphonates and statins suppress the Ras/mitogen-activated protein kinase kinase/ERK/AML-1A and Ras/phosphatidylinositol-3 kinase/Akt/AML-1A pathways, thereby inhibiting MIP-1α secretion by MM cells. Therefore, use of MIP-1α expression inhibitors such as bisphosphonates and statins may provide a new therapeutic approach to inhibiting tumour progression and bone destruction in MM patients.
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Affiliation(s)
- Masanobu Tsubaki
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Tomoya Takeda
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Kotaro Sakamoto
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Hirotaka Shimaoka
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Arisa Fujita
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
| | - Tatsuki Itoh
- Department of Food Science and Nutrition, Kinki University School of AgricultureNara, Nara, Japan
| | - Motohiro Imano
- Department of Surgery, Kinki University School of MedicineOsakasayama, Osaka, Japan
| | - Kenji Mashimo
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical CenterWakayama, Japan
| | - Daiichiro Fujiwara
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical CenterWakayama, Japan
| | - Katsuhiko Sakaguchi
- Department of Pharmacy, Japanese Red Cross Society Wakayama Medical CenterWakayama, Japan
| | - Takao Satou
- Department of Pathology, Kinki University School of MedicineOsakasayama, Osaka, Japan
| | - Shozo Nishida
- Division of Pharmacotherapy, Kinki University School of PharmacyKowakae, Higashi-Osaka, Japan
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Tsubaki M, Komai M, Itoh T, Imano M, Sakamoto K, Shimaoka H, Takeda T, Ogawa N, Mashimo K, Fujiwara D, Mukai J, Sakaguchi K, Satou T, Nishida S. Nitrogen-containing bisphosphonates inhibit RANKL- and M-CSF-induced osteoclast formation through the inhibition of ERK1/2 and Akt activation. J Biomed Sci 2014; 21:10. [PMID: 24490900 PMCID: PMC3996180 DOI: 10.1186/1423-0127-21-10] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [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: 09/18/2013] [Accepted: 01/20/2014] [Indexed: 11/12/2022] Open
Abstract
Background Bisphosphonates are an important class of antiresorptive drugs used in the treatment of metabolic bone diseases. Recent studies have shown that nitrogen-containing bisphosphonates induced apoptosis in rabbit osteoclasts and prevented prenylated small GTPase. However, whether bisphosphonates inhibit osteoclast formation has not been determined. In the present study, we investigated the inhibitory effect of minodronate and alendronate on the osteoclast formation and clarified the mechanism involved in a mouse macrophage-like cell lines C7 and RAW264.7. Results It was found that minodronate and alendronate inhibited the osteoclast formation of C7 cells induced by receptor activator of NF-κB ligand and macrophage colony stimulating factor, which are inhibited by the suppression of geranylgeranyl pyrophosphate (GGPP) biosynthesis. It was also found that minodronate and alendronate inhibited the osteoclast formation of RAW264.7 cells induced by receptor activator of NF-κB ligand. Furthermore, minodronate and alendornate decreased phosphorylated extracellular signal-regulated kinase 1/2 (ERK1/2) and Akt; similarly, U0126, a mitogen protein kinase kinase 1/2 (MEK1/2) inhibitor, and LY294002, a phosphatidylinositol 3-kinase (PI3K) inhibitor, inhibited osteoclast formation. Conclusions This indicates that minodronate and alendronate inhibit GGPP biosynthesis in the mevalonate pathway and then signal transduction in the MEK/ERK and PI3K/Akt pathways, thereby inhibiting osteoclast formation. These results suggest a novel effect of bisphosphonates that could be effective in the treatment of bone metabolic diseases, such as osteoporosis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Shozo Nishida
- Division of Pharmacotherapy, Kinki University School of Pharmacy, Kowakae, Higashi-Osaka 577-8502, Japan.
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Tsubaki M, Komai M, Fujimoto SI, Itoh T, Imano M, Sakamoto K, Shimaoka H, Takeda T, Ogawa N, Mashimo K, Fujiwara D, Mukai J, Sakaguchi K, Satou T, Nishida S. Activation of NF-κB by the RANKL/RANK system up-regulates snail and twist expressions and induces epithelial-to-mesenchymal transition in mammary tumor cell lines. J Exp Clin Cancer Res 2013; 32:62. [PMID: 24011086 PMCID: PMC3847095 DOI: 10.1186/1756-9966-32-62] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 09/03/2013] [Indexed: 01/11/2023]
Abstract
Background Increased motility and invasiveness of cancer cells are reminiscent of the epithelial-mesenchymal transition (EMT), which occurs during cancer progression and metastasis. Recent studies have indicated the expression of receptor activator of nuclear factor-κB (RANK) in various solid tumors, including breast cancer. Although activation of the RANK ligand (RANKL)/RANK system promotes cell migration, metastasis, and anchorage-independent growth of tumor-initiating cells, it remains to be investigated if RANKL induces EMT in breast cancer cells. In this study, we investigated whether RANKL induces EMT in normal breast mammary epithelial cells and breast cancer cells, and the mechanism underlying such induction. Methods Expression levels of vimentin, N-cadherin, E-cadherin, Snail, Slug, and Twist were examined by real-time polymerase chain reaction. Cell migration and invasion were assessed using Boyden chamber and invasion assays, respectively. The effects of RANKL on signal transduction molecules were determined by western blot analyses. Results We found that stimulation by RANKL altered the cell morphology to the mesenchymal phenotype in normal breast epithelial and breast cancer cells. In addition, RANKL increased the expression levels of vimentin, N-cadherin, Snail, and Twist and decreased the expression of E-cadherin. We also found that RANKL activated nuclear factor-κB (NF-κB), but not extracellular signal-regulated kinase 1/2, Akt, mammalian target of rapamycin, c-Jun N-terminal kinase, and signal transducer and activator of transcription 3. Moreover, dimethyl fumarate, a NF-κB inhibitor, inhibited RANKL-induced EMT, cell migration, and invasion, and upregulated the expressions of Snail, Twist, vimentin, and N-cadherin. Conclusions The results indicate that RANKL induces EMT by activating the NF-κB pathway and enhancing Snail and Twist expression. These findings suggest that the RANKL/RANK system promotes tumor cell migration, invasion, and metastasis via the induction of EMT.
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Affiliation(s)
- Masanobu Tsubaki
- Division of Pharmacotherapy, Kinki University School of Pharmacy, Kowakae, Higashi-Osaka 577-8502, Japan.
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41
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Tsubaki M, Komai M, Itoh T, Imano M, Sakamoto K, Shimaoka H, Ogawa N, Mashimo K, Fujiwara D, Takeda T, Mukai J, Sakaguchi K, Satou T, Nishida S. Inhibition of the tumour necrosis factor-alpha autocrine loop enhances the sensitivity of multiple myeloma cells to anticancer drugs. Eur J Cancer 2013; 49:3708-17. [PMID: 23932230 DOI: 10.1016/j.ejca.2013.07.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [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: 04/29/2013] [Revised: 06/25/2013] [Accepted: 07/15/2013] [Indexed: 01/11/2023]
Abstract
Several autocrine soluble factors, including macrophage inflammatory protein-1α and tumour necrosis factor-alpha (TNF-α), promote the survival and growth of multiple myeloma (MM) cells. We hypothesised that inhibition of the TNF-α autocrine loop may enhance the cytotoxic effect of anticancer drugs in MM cell lines. In the present study, a TNF-α-neutralizing antibody suppressed cell proliferation and enhanced the cytotoxic effect of anticancer drugs on MM cells. In addition, combination treatment with the TNF-α-neutralizing antibody and the chemotherapy agent melphalan inhibited nuclear factor κB (NF-κB) p65 nuclear translocation and mammalian target of rapamycin (mTOR) activation and upregulated the expression of Bax and Bim. Treatment of ARH-77 cells with the NF-κB inhibitor dimethyl fumarate or the mTOR inhibitor rapamycin suppressed NF-κB p65 nuclear translocation and enhanced the cytotoxic effect of melphalan. Furthermore, infliximab, a monoclonal antibody against TNF-α, also enhanced the cytotoxic effect of anticancer drugs in ARH-77 cells. These results indicated that TNF-α-neutralizing antibodies or infliximab enhanced the cytotoxic effect of anticancer drugs by suppressing the TNF receptor/mTOR/NF-κB pathways. The inhibition of TNF-α may thus provide a new therapeutic approach to control tumour progression and bone destruction in MM patients.
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Affiliation(s)
- Masanobu Tsubaki
- Division of Pharmacotherapy, Kinki University School of Pharmacy, Kowakae, Higashi-Osaka, Japan
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Kuroda M, Shinke T, Sakaguchi K, Otake H, Hirota Y, Hariki H, Nakagawa M, Inoue T, Osue T, Hirata K. Daily glucose profile has an impact on coronary plaque character in patients with coronary artery disease. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4292] [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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Sakaguchi K, Yokota H, Miyasho T, Maeda N, Nakamura K, Onaga T, Koiwa M, Matsuda K, Okamoto M, Hirayama K, Taniyama H. Polymeric immunoglobulin receptor expression and local immunoglobulin A production in bovine sublingual, submandibular and parotid salivary glands. Vet J 2013; 197:291-6. [PMID: 23395346 DOI: 10.1016/j.tvjl.2012.12.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 09/18/2012] [Revised: 11/12/2012] [Accepted: 12/21/2012] [Indexed: 01/23/2023]
Abstract
The submandibular and parotid glands are the main sources of immunoglobulins A (IgAs) in human and rat saliva. These glands express the polymeric immunoglobulin receptor (pIgR), which transports IgAs into saliva. The main source of IgAs in saliva and pIgR expression in salivary glands has not been well documented in cattle. Expressions of pIgR were determined in the major bovine salivary glands (sublingual, submandibular, and parotid) by RT-PCR for mRNA and by Western blot analysis and immunohistochemistry (IHC) using an anti-human pIgR antibody for protein. The protein detected with the antibody was identified by nano-liquid chromatography-quadrupole time of flight mass spectrometry. Additionally, the distribution of Ig-producing plasma cells was analyzed by IHC. RT-PCR showed that pIgR was expressed in the sublingual and submandibular glands, but not in the parotid gland. Higher protein levels were observed in sublingual glands than in submandibular glands by Western blot. By IHC, pIgR was mainly located on the apical side of the cytoplasmic membrane in the sublingual gland, whereas it was observed only on the basal side in the submandibular gland. The highest density of plasma cells expressing IgAs was observed in the sublingual gland. These results suggest that the sublingual gland plays an important role in first-line defence of the oral cavity in cattle in contrast to humans and rats.
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Affiliation(s)
- K Sakaguchi
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-8501, Japan
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Baden MY, Yamada Y, Takahi Y, Obata Y, Saisho K, Tamba S, Yamamoto K, Umeda M, Furubayashi A, Tsukamoto Y, Sakaguchi K, Matsuzawa Y. Association of adiponectin with blood pressure in healthy people. Clin Endocrinol (Oxf) 2013; 78:226-31. [PMID: 22356115 DOI: 10.1111/j.1365-2265.2012.04370.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 01/31/2012] [Accepted: 02/16/2012] [Indexed: 12/26/2022]
Abstract
OBJECTIVE With the increasing prevalence of diseases related to obesity, metabolic syndrome and its key player adiponectin are now attracting considerable attention. Hypoadiponectinaemia is reported to be a risk factor for hypertension and associated with endothelial dysfunction, which is closely related to complications of obesity such as hypertension. As there is limited information regarding serum adiponectin levels in normotensive people, we undertook the large-scale study to determine the association of adiponectin with blood pressure (BP) in mainly normotensive people. DESIGN, PATIENTS AND MEASUREMENTS In 21 100 Japanese adults (12 363 men and 8737 women) who had no apparent diseases, we examined the relationship between the serum adiponectin concentration and BP by performing a questionnaire survey, physical measurements and measurement of laboratory parameters including the serum adiponectin level. RESULTS Subjects with hypoadiponectinaemia had higher systolic and diastolic BPs as already reported. And interestingly, subjects with higher adiponectin had lower systolic and diastolic BP. According to linear regression analysis, adiponectin showed a significant negative correlation with systolic and diastolic BP independently of the other variables. Analysis of covariance according to adiponectin quintiles showed that systolic and diastolic BP in highest adiponectin quintile was significantly lower than in other quintiles. CONCLUSIONS This study revealed that there were significant trends toward lower systolic and diastolic BP with higher adiponectin not only in hypertensive people but also in normotensive people.
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Affiliation(s)
- Megu Y Baden
- Department of Endocrinology and Metabolism, Sumitomo Hospital, Osaka, Japan.
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Ando M, Sakaguchi K, Yasuda M, Uesaka T, Kim HT, Kawahara A. Atrium contributes to osmoregulation in eels acclimated to sea water. Zoolog Sci 2012; 17:301-6. [PMID: 18494582 DOI: 10.2108/jsz.17.301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/1999] [Accepted: 10/14/1999] [Indexed: 11/17/2022]
Abstract
Since highly concentrated NaCl is suspected to enter into the heart of the seawater eels, effects of high NaCl concentration on the atrial beating was examined, and plasma ion concentrations and osmolality were measured simultaneously in the blood collected from the bulbus arteriosus and from the caudal vessels. When 100 mmole l(-1) NaCl was added to the incubation medium, atrial contraction was enhanced significantly. Similar enhancement in the atrial contractility was also observed after addition of NaCH3SO4 (100 mmole l(-1)) or Tris HCl (100 mmole l(-1)), indicating that Na(+) and Cl(-) are not indispensable for the positive inotropic effect. Furthermore, an addition of sucrose (200 mmole l(-1)) also enhanced the contraction. Inversely, hypoosmotic solution reduced the atrial contraction. These results indicate that the eel atrium is sensitive to environmental osmolarity. The eel atrium responses even at 20 mmole l(-1) sucrose. Such an inotropic effect of sucrose was not depressed after blocking adrenoceptor with betaxolol, a beta1-adrenoceptor antagonist, indicating that the effect is not due to adrenaline release from nerve endings. Plasma osmolality and Na(+) concentration were higher in bulbus arteriosus than in caudal vessels, indicating that the eel heart is really exposed to hyperosmotic blood in sea water. The osmotically enhanced atrial contraction may increase the cardiac outflow into the gill. Such property of the atrium would have clear advantages for seawater teleosts, since the concentrated NaCl from the esophagus can be excreted immediately through the gill, without circulating their body, and blood homeostasis can be maintained efficiently.
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Shimizu T, Okamoto I, Kurata T, Fujisaka Y, Tsurutani J, Nomura M, Minami T, Sakaguchi K, Ohnishi R, Chang J, Hase Y, Nakagawa K. Required Capabilities and Infrastructure for Japanese Phase I Institutes: From the Experience of Early Phase Drug Development Operation at Phase I Centers in United States. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32137-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Sakaguchi K, Nagatsuma T, Ogawa T, Obara T, Troshichev OA. Ionospheric Pc5 plasma oscillations observed by the King Salmon HF radar and their comparison with geomagnetic pulsations on the ground and in geostationary orbit. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011ja016923] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gomi T, Nakajima M, Fujiwara H, Takeda T, Saito K, Umeda T, Sakaguchi K. Comparison between chest digital tomosynthesis and CT as a screening method to detect artificial pulmonary nodules: a phantom study. Br J Radiol 2012; 85:e622-9. [PMID: 22422390 DOI: 10.1259/bjr/12643098] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The objective of this study was to evaluate the imaging capabilities of chest digital tomosynthesis (DT) as a screening method for the detection of artificial pulmonary nodules, and to compare its efficiency with that of CT. METHODS DT and CT were used to detect artificial pulmonary nodules (5 mm and 8 mm in diameter, ground-glass opacities) placed in a chest phantom. Using a three-dimensional filtered back-projection algorithm at acquisition angles of 8°, 20°, 30° and 40°, DT images of the desired layer thicknesses were reconstructed from the image data acquired during a single tomographic scan. Both standard and sharp CT reconstruction kernels were used, and the detectability index (DI) valves computed for both the DT scan acquisition angles and CT reconstruction kernel types were considered. For the observer study, we examined 50 samples of artificial pulmonary nodules using both DT and CT imaging. On the basis of evaluations made by five thoracic radiologists, a jackknife free-response receiver operating characteristic (JAFROC) study was performed to compare and assess the differences in detection accuracy between CT and DT imaging. RESULTS For each increased acquisition angle, DI obtained by DT imaging was similar to that obtained by CT imaging. The difference in the observer-averaged JAFROC figure of merit for the five readings was 0.0363 (95% confidence interval: -0.18, 0.26; F=0.101; p=0.75). CONCLUSION With the advantages of a decreased radiation dose and the practical accessibility of examination, DT may be a useful alternative to CT for the detection of artificial pulmonary nodules.
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Affiliation(s)
- T Gomi
- School of Allied Health Sciences, Kitasato University, Sagamihara, Kanagawa, Japan.
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Iguchi T, Inoue D, Yabushita K, Sakaguchi K, Tatsukawa M, Sasaki H, Kanazawa S. Effect of CT fluoroscopy-guided transpulmonary radiofrequency ablation of liver tumours on the lung. Br J Radiol 2012; 85:e373-7. [PMID: 22374277 DOI: 10.1259/bjr/34646739] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE We retrospectively evaluated the effect of transpulmonary radiofrequency ablation (RFA) of liver tumours on the lung. METHODS 16 patients (10 males and 6 females; mean age, 65.2 years) with 16 liver tumours (mean diameter 1.5 cm) underwent transpulmonary RFA under CT fluoroscopic guidance. The tumours were either hepatocellular carcinoma (n=14) or liver metastasis (n=12). All 16 liver tumours were undetectable with ultrasonography. The pulmonary function values at 3 months after transpulmonary RFA were compared with baseline (i.e. values before RFA). RESULTS In 8 of 16 sessions, minor pulmonary complications occurred, including small pneumothorax (n=8) and small pleural effusion (n=1). In two sessions, major pulmonary complications occurred, including pneumothorax requiring a chest tube (n=2). These chest tubes were removed at 4 and 6 days, and these patients were discharged 7 and 10 days after RFA, respectively, without any sequelae. The pulmonary function values we evaluated were forced expiratory volume in 1 s (FEV1.0) and vital capacity (VC). The mean values of FEV1.0 before and 3 months after RFA were 2.55 l and 2.59 l, respectively; the mean values of VC before and 3 months after RFA were 3.20 l and 3.27 l, respectively. These pulmonary values did not show any significant worsening (p=0.393 and 0.255 for FEV1.0 and VC, respectively). CONCLUSION There was no significant lung injury causing a fatal or intractable complication after transpulmonary RFA of liver tumours.
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Affiliation(s)
- T Iguchi
- Department of Diagnostic and Interventional Radiology, Fukuyama City Hospital, Fukuyama, Japan.
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Lavigne O, Takeda Y, Shoji T, Sakaguchi K. Water irradiation by high-frequency ultrasonic wave: effects on properties of passive film formed on stainless steel. Ultrason Sonochem 2011; 18:1287-94. [PMID: 21555231 DOI: 10.1016/j.ultsonch.2011.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 04/05/2011] [Accepted: 04/15/2011] [Indexed: 05/12/2023]
Abstract
In this paper an aqueous solution was irradiated with a 1.63MHz ultrasonic wave. It is shown that if stainless steel can passivate under dynamic polarization in this medium, under static polarization, the latter does not show any repassivation behaviour with time. This is attributed to a diminution of the diffusion layer thickness that is developed at the electrode/electrolyte interface, which is associated with a production of H(2) species by sonolysis and which maintains reductive conditions at the interface. The oxide film formed under ultrasonic irradiation for 1h at a passive potential of+0.2V(SCE) shows an early stage of passivation and an increased disordered state, which implies a considerable decrease in the corrosion resistance behaviour of the sample. The polarization resistance of the stainless steel R(p) is divided by a value of 4.5 under ultrasonic conditions.
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Affiliation(s)
- O Lavigne
- Fracture and Reliability Research Institute, Faculty of Engineering, Tohoku University, Aramaki Aoba 6-6-11-717, Aoba-ku, Sendai 980-8579, Japan.
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