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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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Asai-Nishishita A, Kawahara M, Tatsumi G, Iwasa M, Fujishiro A, Nishimura R, Minamiguchi H, Kito K, Murata M, Andoh A. FUS-ERG induces late-onset azacitidine resistance in acute myeloid leukaemia cells. Sci Rep 2023; 13:14454. [PMID: 37660196 PMCID: PMC10475016 DOI: 10.1038/s41598-023-41230-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 08/23/2023] [Indexed: 09/04/2023] Open
Abstract
FUS-ERG is a chimeric gene with a poor prognosis, found in myelodysplastic syndromes (MDS) and acute myeloid leukaemia (AML). It remains unclear whether DNA hypomethylating agents, including azacitidine (Aza), are effective in FUS-ERG-harbouring AML and how FUS-ERG induces chemoresistance. Stable Ba/F3 transfectants with FUS-ERG were repeatedly exposed to Aza for 7 days of treatment and at 21-day intervals to investigate Aza sensitivity. Stable FUS-ERG transfectants acquired resistance acquired resistance after three courses of Aza exposure. RNA sequencing (RNA-seq) was performed when Aza susceptibility began to change; genes with altered expression or transcript variants were identified. Molecular signatures of these genes were analysed using gene ontology. RNA-seq analyses identified 74 upregulated and 320 downregulated genes involved in cell motility, cytokine production, and kinase activity. Additionally, 1321 genes with altered transcript variants were identified, revealing their involvement in chromatin organisation. In a clinical case of AML with FUS-ERG, we compared whole-genome alterations between the initial MDS diagnosis and AML recurrence after Aza treatment. Genes with non-synonymous or near mutations in transcription regulatory areas (TRAs), additionally detected in AML recurrence, were collated with the gene list from RNA-seq to identify genes involved in acquiring Aza resistance in the presence of FUS-ERG. Whole-genome sequencing of clinical specimens identified 29 genes with non-synonymous mutations, including BCOR, and 48 genes located within 20 kb of 54 TRA mutations in AML recurrence. These genes were involved in chromatin organisation and included NCOR2 as an overlapping gene with RNA-seq data. Transcription regulators involved in mutated TRAs were skewed and included RCOR1 in AML recurrence. We tested the efficacy of BH3 mimetics, including venetoclax and S63845, in primary Aza-resistant AML cells treated with FUS-ERG. Primary FUS-ERG-harbouring AML cells acquiring Aza resistance affected the myeloid cell leukaemia-1 (MCL1) inhibitor S63845 but not while using venetoclax, despite no mutations in BCL2. FUS-ERG promoted Aza resistance after several treatments. The disturbance of chromatin organisation might induce this by co-repressors, including BCOR, NCOR2, and RCOR1. MCL1 inhibition could partially overcome Aza resistance in FUS-ERG-harbouring AML cells.
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Affiliation(s)
- Ai Asai-Nishishita
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan
| | - Masahiro Kawahara
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan.
| | - Goichi Tatsumi
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8397, Japan
| | - Masaki Iwasa
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan
| | - Aya Fujishiro
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan
| | - Rie Nishimura
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan
| | - Hitoshi Minamiguchi
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan
| | - Katsuyuki Kito
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan
| | - Makoto Murata
- Division of Hematology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan
| | - Akira Andoh
- Division of Gastroenterology, Department of Medicine, Shiga University of Medical Science, Seta-Tsukinowa, Otsu, Shiga, 520-2192, Japan.
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Fujimoto N, Fuse M, Kobayashi Y, Kabuto M, Iwasa M, Minamiguchi H. Intravascular large B-cell lymphoma diagnosed by skin biopsy of a cellulitis-like skin lesion: Case report and review of literature. DERMATOL SIN 2022. [DOI: 10.4103/ds.ds_9_22] [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: 11/04/2022] Open
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5
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Yokota Y, Inatomi O, Nakagawa M, Kakuda K, Hiroe K, Sakai S, Osaki R, Iwasa M, Kawahara M, Kito K, Andoh A, Bamba H. Acquired Coagulation Factor V Inhibitor That Was Successfully Treated with Oral Corticosteroid Therapy. Intern Med 2021; 60:2663-2666. [PMID: 34121013 PMCID: PMC8429299 DOI: 10.2169/internalmedicine.7453-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Acquired coagulation factor V (FV) inhibitors are rare disorders in which antibodies against FV develop under various conditions. We herein report the case of a 71-year-old woman with FV inhibitor during radiochemotherapy for pancreatic cancer. Multiple purpuras suddenly appeared on her bilateral upper limbs with prolonged coagulation data (APTT 97.3 seconds). The FV activity was less than 3% and the FV inhibitor was positive (1.7 B.U./mL). Oral prednisolone induced a rapid normalization of the coagulation data and FV activity and a rapid disappearance of FV inhibitor within 7 days. Early diagnosis and treatment may therefore be important in cases of FV inhibitor.
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Affiliation(s)
- Yoshihiro Yokota
- Department of Gastroenterology, Nagahama Red Cross Hospital, Japan
| | - Osamu Inatomi
- Department of Medicine, Shiga University of Medical Science, Japan
| | - Minami Nakagawa
- Department of Clinical Laboratory Medicine, Nagahama Red Cross Hospital, Japan
| | - Kazuki Kakuda
- Department of Gastroenterology, Nagahama Red Cross Hospital, Japan
| | - Kousuke Hiroe
- Department of Gastroenterology, Nagahama Red Cross Hospital, Japan
| | - Shigeki Sakai
- Department of Gastroenterology, Nagahama Red Cross Hospital, Japan
| | - Rie Osaki
- Department of Gastroenterology, Nagahama Red Cross Hospital, Japan
| | - Masaki Iwasa
- Department of Medicine, Shiga University of Medical Science, Japan
| | | | - Katsuyuki Kito
- Department of Medicine, Shiga University of Medical Science, Japan
| | - Akira Andoh
- Department of Medicine, Shiga University of Medical Science, Japan
| | - Hiromichi Bamba
- Department of Gastroenterology, Nagahama Red Cross Hospital, Japan
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Takaoka H, Fukuda M, Otsuka Y, Iwasa M. A male black fly of Simulium (Simulium) iwatense (Shiraki) (Diptera: Simuliidae) with genitalia-like appendages on abdominal segment 8. Trop Biomed 2021; 38:68-71. [PMID: 33973575 DOI: 10.47665/tb.38.2.040] [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: 11/21/2022]
Abstract
A rare non-sex mosaic abnormality represented by genitalia-like appendages on the ventral surface of abdominal segment 8 of a male black fly collected in Hokkaido, Japan, is reported. The appendages consist of a pair of style-like projections each arising from a coxite-like base, inverted-Y shaped ventral plate-like structure, and isolated round structure. This male was morphologically and molecularly identified as an abnormal form of S. (S.) iwatense (Shiraki), the only species in the Simulium (Simulium) ornatum species-group in Japan, although certain morphological characteristics of this male including the reduced number of uppereye (large) facets and elongate cerci are different from those of S. (S.) iwatense.
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Affiliation(s)
- H Takaoka
- Tropical Infectious Diseases Research and Education Centre (TIDREC), Higher Institution Centre of Excellence (HICoE), Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - M Fukuda
- Institute for Research Promotion, Oita University, Idaigaoka 1-1, Hasama, Yufu, Oita 879-5593, Japan
| | - Y Otsuka
- Research Center for the Pacific Islands, Kagoshima University, Korimoto 1-21-24, Kagoshima, Kagoshima 890-8580, Japan
| | - M Iwasa
- Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
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Saika W, Kawahara M, Tashiro H, Teramoto Y, Nagai S, Kumode M, Iwasa M, Asai A, Fujishiro A, Nishimura R, Minamiguchi H, Moritani S, Kito K, Andoh A. [Immunohistochemical evaluation of BCL-2 expression in acute myeloid leukemia, myeloid sarcoma, and blastic plasmacytoid dendritic cell neoplasm]. Rinsho Ketsueki 2021; 61:1647-1653. [PMID: 33441515 DOI: 10.11406/rinketsu.61.1647] [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] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Venetoclax, a selective BCL-2 inhibitor, is prescribed clinically for acute myeloid leukemia (AML) treatment. However, it is unclear if known chromosomal or genetic abnormalities associated with AML also influence BCL-2 expression. Few studies have examined BCL-2 expression in AML-related precursor neoplasms such as primary myeloid sarcoma (MS) and blastic plasmacytoid dendritic cell neoplasm (BPDCN). In this study, we examined BCL-2 expression using immunohistochemistry in 7 patients with AML, who also carried genetic and chromosomal abnormalities typical to AML including t (8;21), t (15;17), FLT3-ITD mutation, and complex karyotype, along with 1 patient with primary MS and 3 patients with BPDCN. As a result, expression of BCL-2 was observed in all patients with AML and 1 patient with primary MS. In the patients with BPDCN, BCL-2 was highly expressed in all regions with evidence of tumor cell infiltration, such as skin, bone marrow, and lymph node. These results could be used as evidence in the support of administering venetoclax to adverse-risk patients with AML, MS, or BPDCN.
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Affiliation(s)
- Wataru Saika
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Masahiro Kawahara
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Haruka Tashiro
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Yukako Teramoto
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Shiho Nagai
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Mina Kumode
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Masaki Iwasa
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Ai Asai
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Aya Fujishiro
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Rie Nishimura
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Hitoshi Minamiguchi
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Suzuko Moritani
- Department of Clinical Laboratory Medicine and Diagnostic Pathology, Shiga University of Medical Science
| | - Katsuyuki Kito
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Akira Andoh
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
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Iwasa M, Fujii S, Fujishiro A, Maekawa T, Andoh A, Takaori-Kondo A, Ichinohe T, Miura Y. Impact of 2 Gy γ-irradiation on the hallmark characteristics of human bone marrow-derived MSCs. Int J Hematol 2021; 113:703-711. [PMID: 33386593 DOI: 10.1007/s12185-020-03072-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 11/24/2022]
Abstract
Two gray γ-irradiation is a widely employed basic module for total body irradiation (TBI) in allogeneic hematopoietic cell transplantation (HCT). The effects of γ-irradiation on hematopoietic and immune cells have been well investigated, but its effects on the bone marrow microenvironment (BMM) are unknown. Given the crucial contribution of mesenchymal/stromal stem cells (MSCs) in the BMM to hematopoiesis and osteogenesis, we investigated whether γ-irradiation affects the hallmark characteristics of human bone marrow-derived MSCs (BM-MSCs). Expansion of 2 Gy γ-irradiated BM-MSCs was delayed but eventually recovered. Colony formation and osteogenic, adipogenic, and chondrogenic differentiation capabilities of these cells were extensively suppressed. Irradiation of BM-MSCs did not affect the expansion of CD34 + hematopoietic stem and progenitor cells or production of CD11b + mature myeloid cells in co-cultures. However, it reduced production of CD19 + B-cells, as well as expression of CXCL12 and interleukin-7, which are essential for B-cell lymphopoiesis, in 2 Gy γ-irradiated BM-MSCs. Collectively, colony formation, osteogenic differentiation, and B-cell lymphopoiesis-supportive capabilities of γ-irradiated BM-MSCs were reduced. These effects may predispose survivors receiving HCT with TBI to defective bone formation and a perturbed humoral immune response.
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Affiliation(s)
- Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
- Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan.
| | - Sumie Fujii
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Department of Hematology/Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Aya Fujishiro
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Akira Andoh
- Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan
| | - Akifumi Takaori-Kondo
- Department of Hematology/Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Tatsuo Ichinohe
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, 734-8553, Japan
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Department of Hematology/Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, 734-8553, Japan
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9
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Fujishiro A, Iwasa M, Fujii S, Maekawa T, Andoh A, Tohyama K, Takaori-Kondo A, Miura Y. Correction to: Menatetrenone facilitates hematopoietic cell generation in a manner that is dependent on human bone marrow mesenchymal stromal/stem cells. Int J Hematol 2020; 112:599-602. [PMID: 32930953 DOI: 10.1007/s12185-020-02993-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In the original publication of the article, the Figs. 4 C, F and 5 B, C were published with unexpected appearance of dots.
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Affiliation(s)
- Aya Fujishiro
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan. .,Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan.
| | - Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.,Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan
| | - Sumie Fujii
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.,Department of Hematology and Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Akira Andoh
- Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan
| | - Kaoru Tohyama
- Department of Laboratory Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan
| | - Akifumi Takaori-Kondo
- Department of Hematology and Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.,Department of Hematology and Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
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Fujishiro A, Iwasa M, Fujii S, Maekawa T, Andoh A, Tohyama K, Takaori-Kondo A, Miura Y. Menatetrenone facilitates hematopoietic cell generation in a manner that is dependent on human bone marrow mesenchymal stromal/stem cells. Int J Hematol 2020; 112:316-330. [PMID: 32572826 DOI: 10.1007/s12185-020-02916-8] [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: 01/28/2020] [Revised: 06/06/2020] [Accepted: 06/11/2020] [Indexed: 12/24/2022]
Abstract
Vitamin K2 in the form of menatetrenone has clinical benefits for osteoporosis and cytopenia. Given the dominant role of mesenchymal-osteolineage cells in the regulation of hematopoiesis, we investigated whether menatetrenone alters the hematopoiesis-supportive capability of human bone marrow mesenchymal stromal/stem cells (BM-MSCs). Menatetrenone up-regulated fibronectin protein expression in BM-MSCs without affecting their proliferation and differentiation capabilities. In addition, menatetrenone treatment of BM-MSCs enhanced generation of the CD34+ cell population in co-cultures through acceleration of the cell cycle. This effect was associated with cell-cell interactions mediated by VLA-4 and fibronectin. This proposal was supported by cytokine array and quantitative real-time PCR analyses, in which there were no significant differences between the expression levels of hematopoiesis-associated soluble factors in naïve and menatetrenone-treated BM-MSCs. Profiling of hematopoietic cells in co-cultures with menatetrenone-treated BM-MSCs demonstrated that they included significantly more CD34+CD38+ hematopoietic progenitor cells and cells skewed toward myeloid and megakaryocytic lineages than those in co-cultures with untreated BM-MSCs. Notably, myelodysplastic syndrome-derived cells were induced to undergo apoptosis when co-cultured with BM-MSCs, and this effect was enhanced by menatetrenone. Overall, our findings indicate that pharmacological treatment with menatetrenone bestows a unique hematopoiesis-supportive capability on BM-MSCs, which may contribute to the clinical improvement of cytopenia.
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Affiliation(s)
- Aya Fujishiro
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan. .,Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan.
| | - Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.,Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan
| | - Sumie Fujii
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.,Department of Hematology and Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Akira Andoh
- Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga, 520-2192, Japan
| | - Kaoru Tohyama
- Department of Laboratory Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan
| | - Akifumi Takaori-Kondo
- Department of Hematology and Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.,Department of Hematology and Oncology, Kyoto University Graduate School for Medicine, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
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11
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Ishikawa I, Iwasa M. Toxicological effect of ivermectin on the survival, reproduction, and feeding activity of four species of dung beetles (Coleoptera: Scarabaeidae and Geotrupidae) in Japan. Bull Entomol Res 2020; 110:106-114. [PMID: 31190655 DOI: 10.1017/s0007485319000385] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We investigated the effects of the antiparasitic drug ivermectin on the dung beetles Copris acutidens Motschulsky, Onthophagus bivertex Heyden, O. lenzii Harold and Phelotrupes auratus auratus Motschulsky in Japan. Ivermectin was detected in cattle dung from 1 to 3 or 7 days post-treatment, with a peak at 3 days post-treatment in two pour-on administrations (500 µg kg-1). In C. acutidens, adult survivals and numbers of brood balls were significantly reduced in dung collected at 3 and 7 days post-treatment, and adult emergence rates were significantly decreased in dung collected at 7 and 14 days post-treatment. Feeding activity of C. acutidens was inhibited in dung collected at 3 days post-treatment, but was not significantly different from that seen in control dung at 7 and 14 days post-treatment. In O. bivertex and O. lenzii, there were no effects of ivermectin on adult survival or feeding activities, but the numbers of brood balls of O. bivertex constructed in dung collected at 3 and 7 days post-treatment were significantly lower than observed with control dung. The adult emergence rates of O. bivertex and O. lenzii were significantly reduced in dung collected at 1 to 3 and 1 to 7 days post-treatment, respectively. In P. auratus, there were no effects of ivermectin on adult survival, oviposition, feeding activity, or larval survival (until the third instar) in dung at 3 days post-treatment. The environmental risks affecting the populations of dung beetles in Japan are discussed.
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Affiliation(s)
- I Ishikawa
- Laboratory of Entomology, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - M Iwasa
- Laboratory of Entomology, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
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Ishikawa I, Iwasa M. Effects of eprinomectin on the survival, reproduction and feeding activity of the dung beetles, Onthophagus lenzii Harold, and rare species, Copris ochus Motschulsky (Coleoptera: Scarabaeidae) - CORRIGENDUM. Bull Entomol Res 2019; 109:199. [PMID: 30950364 DOI: 10.1017/s0007485318000652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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13
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Ishikawa I, Iwasa M. Effects of eprinomectin on the survival, reproduction and feeding activity of the dung beetles, Onthophagus lenzii Harold, and rare species, Copris ochus Motschulsky (Coleoptera: Scarabaeidae). Bull Entomol Res 2019; 109:191-198. [PMID: 29784064 DOI: 10.1017/s0007485318000317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Effects of the antiparasitic drug eprinomectin were studied on the dung beetles, Onthophagus lenzii Harold and the rare species, Copris ochus Motschulsky by pour-on administrations (500 µg kg-1) in Japan. Eprinomectin was detected in cattle dung from 1 to 7 or 14 days after treatment, with a peak at 1 day after treatment in two experiments. In O. lenzii, adult survivals and numbers of brood balls constructed were significantly reduced in dung from eprinomectin-treated cattle at 1 and 3 days post-treatment in experiment 1, and adult emergence rates were extremely reduced in dung at 1, 3, and 7 days post-treatment. In C. ochus, adult survivals were significantly reduced in dung at 3 days post-treatment (experiment 1), and equivalent levels to the control were restored in dung at 7 and 14 days post-treatment (experiment 2). Numbers of brood balls of C. ochus were nil in dung at 3 days (experiment 1), and significantly reduced in dung at 7 days (experiment 2) post-treatment compared with control. Adult emergence rates of C. ochus were 100 and 71.6% in dung from control cattle in experiments 1 and 2, respectively. However, no oviposition was observed in dung at 3 days post-treatment, and all offspring died at egg or the first instar larval stage in dung from 7 and 14 days post-treatment. Feeding activities of O. lenzii and C. ochus were significantly inhibited in dung from treated cattle at 1-3 days and 3 days post-treatment, respectively, returning to levels of the control at 7 days post-treatment.
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Affiliation(s)
- I Ishikawa
- Laboratory of Entomology,Obihiro University of Agriculture and Veterinary Medicine,Inada-cho, Obihiro, Hokkaido 080-8555,Japan
| | - M Iwasa
- Laboratory of Entomology,Obihiro University of Agriculture and Veterinary Medicine,Inada-cho, Obihiro, Hokkaido 080-8555,Japan
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14
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Nakamura S, Miki H, Okamoto Y, Sogabe K, Oura M, Takahashi M, Iwasa M, Harada T, Fujii S, Kagawa K, Abe M. Alteration of muscle mass after chemotherapy in patients with newly diagnosed multiple myeloma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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15
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Hosoba S, Kito K, Teramoto Y, Adachi K, Nakanishi R, Asai A, Iwasa M, Nishimura R, Moritani S, Kawahara M, Minamiguchi H, Nanba E, Kushima R, Andoh A. A novel mutation causing type 1 Gaucher disease found in a Japanese patient with gastric cancer: A case report. Medicine (Baltimore) 2018; 97:e11361. [PMID: 29979419 PMCID: PMC6076040 DOI: 10.1097/md.0000000000011361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Gaucher disease (GD) is an autosomal recessive disorder that leads to multiorgan complications caused by β-glucocerebrosidase deficiency due to mutations in the β-glucocerebrosidase-encoding gene (GBA). GD morbidity in Japan is quite rare and clinical phenotype and gene mutation patterns of patients with GD in Japan and Western countries differ considerably. Of Japanese patients with GD, 57% develop types 2 or 3 GD with neurologic manifestations and younger onset, whereas only 6% of patients with GD develop those manifestations in Western countries. Thus, it is relatively difficult to find and diagnose GD in Japan. PATIENT CONCERNS A 69-year-old Japanese female with mild anemia and thrombocytopenia but without neurologic symptoms was initially referred for gastric cancer. Preoperative F-deoxyglucose positron emission tomography/computed tomography (FDG PET/CT) showed accumulation in the bone marrow and paraabdominal lymph nodes. Following bone marrow aspiration found, abnormal foamy macrophages in the bone marrow and electron microscopy revealed that the macrophages were filled with tubular-form structures. Adding to these signs suggestive of a lysosomal disease, serum β-glucocerebrosidase activity test found decreased. Sequencing of the patient's GBA gene revealed a RecNciI recombinant mutation and the novel mutation K157R (c.587A>G). DIAGNOSES On the basis of these findings and clinical manifestations, the final diagnosis of type 1 GD was made. INTERVENTIONS Enzyme replacement therapy (ERT) with velaglucerase α was started after the diagnosis of type 1 GD. OUTCOMES The patient's β-glucocerebrosidase activity as well as hemoglobin and platelet levels were restored by ERT without any side effects. Bone marrow aspirations 10 months after the start of the treatment with velaglucerase α showed reduction of Gaucher cells in bone marrow to 2% from 4% of total cellularity. LESSONS This is the first report of F-FDG PET/CT application providing a clue for GD diagnosis. A novel mutation in GBA is described, which implies a potential pool of patients with GD with this mutation in Japan.
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Affiliation(s)
- Sakura Hosoba
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Katsuyuki Kito
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Yukako Teramoto
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Kaori Adachi
- Division of Functional Genomics, Research Center for Bioscience and Technology, Tottori University, Yonago
| | - Ryota Nakanishi
- Department of Clinical Laboratory Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Ai Asai
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Masaki Iwasa
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Rie Nishimura
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Suzuko Moritani
- Department of Clinical Laboratory Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Masahiro Kawahara
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Hitoshi Minamiguchi
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
| | - Eiji Nanba
- Division of Functional Genomics, Research Center for Bioscience and Technology, Tottori University, Yonago
| | - Ryoji Kushima
- Department of Clinical Laboratory Medicine, Shiga University of Medical Science, Shiga, Japan
| | - Akira Andoh
- Division of Hematology, Department of Internal Medicine, Shiga University of Medical Science, Otsu
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16
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Wakakura M, Yamagami A, Iwasa M. Blepharospasm in Japan: A Clinical Observational Study From a Large Referral Hospital in Tokyo. Neuroophthalmology 2018; 42:275-283. [PMID: 30258472 DOI: 10.1080/01658107.2017.1409770] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/13/2017] [Accepted: 11/22/2017] [Indexed: 10/18/2022] Open
Abstract
Focal dystonia is regarded as a characteristic feature of blepharospasm. However, patients do not always present with motor symptoms. To clarify the clinical features of blepharospasm in Japan, we conducted a retrospective observational study involving a large population of patients from a single institution. Common symptoms included difficulty opening the eyes, photophobia, and ocular pain/irritation. Initial symptoms often occurred following the long-term use of psychotropics such as etizoram, benzodiazepines, and zolpidem (32% of patients). Our findings demonstrated that the clinical presentation of blepharospasm is heterogenous, and that understanding regarding sensory-dominant forms of the disease may be poor among practitioners in Japan.
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Affiliation(s)
- M Wakakura
- Division of Neuro-ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - A Yamagami
- Division of Neuro-ophthalmology, Inouye Eye Hospital, Tokyo, Japan
| | - M Iwasa
- Division of Neuro-ophthalmology, Inouye Eye Hospital, Tokyo, Japan
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Kawahara M, Teramoto Y, Asai A, Nagai S, Iwasa M, Fujishiro A, Nishimura R, Minamiguchi H, Tsuji A, Kito K, Andoh A. [Significance of monitoring cerebrospinal fluid leukocyte counts in managing central nervous system disease of acute myeloid leukemia in patients presenting with intracerebral hemorrhage upon initial examination]. Rinsho Ketsueki 2018; 59:2578-2582. [PMID: 30626792 DOI: 10.11406/rinketsu.59.2578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A 17-year-old woman was urgently transported to our hospital due to consciousness disturbance. A blood examination revealed intracerebral hemorrhage, WBC 233,800/l, blasts 93%, and disseminated intravascular coagulation. The results of bone-marrow aspiration indicated acute myeloid leukemia (M2 in FAB classification) with t (7;11) (p15;p15) and the resulting chimeric gene NUP98-HOXA9 and with FLT3-ITD. Following hematoma evacuation, induction therapy was initiated and the leukocytes in the cerebrospinal fluid observed in the spinal drainage were monitored. Because they increased on days 5 and 9 after the completion of induction therapy, intrathecal chemotherapy (IT) was performed; this finally contributed to controlling AML in the central nervous system (CNS), together with the restoration of normal hematopoiesis. Subsequently, after complete molecular remission with consolidation therapies containing high-dose cytarabine, a bone-marrow transplantation with a myeloablative regimen was conducted from a 1-allele mismatched sibling donor. Finally, the patient was discharged without major sequela on day 228 after the first visit. The management of CNS disease in AML with intracerebral hemorrhage remains unclear. Our case suggests that IT at the appropriate time based on the monitored number of cerebrospinal fluid leukocytes could be useful in controlling AML in the CNS after intracerebral hemorrhage.
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Affiliation(s)
- Masahiro Kawahara
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Yukako Teramoto
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Ai Asai
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Shiho Nagai
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Masaki Iwasa
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Aya Fujishiro
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Rie Nishimura
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Hitoshi Minamiguchi
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Atsushi Tsuji
- Department of Neurosurgery, Shiga University of Medical Science
| | - Katsuyuki Kito
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
| | - Akira Andoh
- Department of Medicine (Division of Hematology), Shiga University of Medical Science
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18
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Fujishiro A, Miura Y, Iwasa M, Fujii S, Sugino N, Andoh A, Hirai H, Maekawa T, Ichinohe T. Effects of acute exposure to low-dose radiation on the characteristics of human bone marrow mesenchymal stromal/stem cells. Inflamm Regen 2017; 37:19. [PMID: 29259718 PMCID: PMC5725824 DOI: 10.1186/s41232-017-0049-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 07/10/2017] [Indexed: 12/26/2022] Open
Abstract
Background In recent years, increasing attention has been paid to the effects of low-dose irradiation on human health. We examined whether low-dose irradiation affected the functions of mesenchymal stromal/stem cells (MSCs), which are tissue/organ-supportive stem cells, derived from bone marrow (BM). Methods Normal human BM-MSCs from five healthy individuals were used in this study. Culture-expanded BM-MSCs were exposed to 0.1 gray (Gy) of γ-radiation (Cesium-137) at a rate of 0.8 Gy/min (Ir-MSCs), and their expansion, multi-differentiation, and hematopoiesis-supportive capabilities were investigated. Results The expansion of BM-MSCs was transiently delayed after low-dose γ-irradiation compared with that of non-irradiated BM-MSCs (non-Ir-MSCs) in two out of five lots. Adipogenic and osteogenic differentiation capabilities were not significantly affected by low-dose irradiation, although one lot of BM-MSCs tended to have transiently reduced differentiation. When human BM hematopoietic stem/progenitor cells (HPCs) were co-cultured with Ir-MSCs, the generation of CD34+CD38+ cells from HPCs was enhanced compared with that in co-cultures with non-Ir-MSCs in two out of five lots. The mRNA expression level of interleukin (IL)-6 was increased and those of stem cell factor (SCF) and fms-related tyrosine kinase 3 ligand (Flt3L) were decreased in the affected lots of Ir-MSCs. In the other three lots of BM-MSCs, a cell growth delay, enhanced generation of CD34+CD38+ cells from HPCs in co-culture, and a combination of increased expression of IL-6 and decreased expression of SCF and Flt3L were not observed. Of note, the characteristics of these affected Ir-MSCs recovered to a similar level as those of non-Ir-MSCs following culture for 3 weeks. Conclusions Our results suggest that acute exposure to low-dose (0.1 Gy) radiation can transiently affect the functional characteristics of human BM-MSCs.
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Affiliation(s)
- Aya Fujishiro
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan.,Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga 520-2192 Japan
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan.,Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, 734-8553 Japan
| | - Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan.,Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga 520-2192 Japan
| | - Sumie Fujii
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan.,Department of Hematology/Oncology, Graduate School for Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan
| | - Noriko Sugino
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan.,Department of Hematology/Oncology, Graduate School for Medicine, Kyoto University, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan
| | - Akira Andoh
- Division of Gastroenterology and Hematology, Department of Medicine, Shiga University of Medical Science, Setatsukinowacho, Otsu, Shiga 520-2192 Japan
| | - Hideyo Hirai
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, 54 Kawaharacho, Shogoin, Sakyo-ku, Kyoto, 606-8507 Japan
| | - Tatsuo Ichinohe
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minamiku, Hiroshima, 734-8553 Japan
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19
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Nakashima T, Kubota T, Kawaguchi T, Nawa T, Hayakawa Y, Watanabe T, Tanaka T, Takasugi N, Iwasa M, Yamada Y, Kanamori H, Ushikoshi H, Kawasaki M, Nishigaki K, Minatoguchi S. P6140Impact of the pulmonary vein orifice area assessed by intracardiac echocardiography on the outcome of pulmonary vein isolation for atrial fibrillation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6140] [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: 11/13/2022] Open
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20
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Fujii S, Miura Y, Iwasa M, Yoshioka S, Fujishiro A, Sugino N, Kaneko H, Nakagawa Y, Hirai H, Takaori-Kondo A, Ichinohe T, Maekawa T. Isolation of mesenchymal stromal/stem cells from cryopreserved umbilical cord blood cells. J Clin Exp Hematop 2017; 57:1-8. [PMID: 28420812 DOI: 10.3960/jslrt.16019] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Umbilical cord blood (UCB) has advantages over other tissues because it can be obtained without an invasive procedure and complex processing. We explored the availability of cryopreserved UCB cells as a source of mesenchymal stromal/stem cells (MSCs). MSCs were successfully isolated from six of 30 UCB units (median volume, 34.0 mL; median nucleated cell number, 4.4×108) that were processed and cryopreserved using CP-1/human serum albumin. This isolation rate was lower than that (57%) from non-cryopreserved UCB cells. The number of nucleated cells before and after hydroxyethyl starch separation, UCB unit volume, and cell viability after thawing did not significantly differ between UCB units from which MSCs were successfully isolated and those from which they were not. When CryoSure-DEX40 was used as a cryoprotectant, MSCs were isolated from two of ten UCB units. Logistic regression analysis demonstrated that the cryopreservation method was not significantly associated with the success of MSC isolation. The isolated MSCs had a similar morphology and surface marker expression profile as bone marrow-derived MSCs and were able to differentiate into osteogenic, adipogenic, and chondrogenic cells. In summary, MSCs can be isolated from cryopreserved UCB cells. However, the cryopreservation process reduces the isolation rate; therefore, freshly donated UCB cells are preferable for the isolation of MSCs.
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Affiliation(s)
- Sumie Fujii
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital.,Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital
| | - Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital.,Division of Gastroenterology and Hematology, Shiga University of Medical Science
| | - Satoshi Yoshioka
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital
| | - Aya Fujishiro
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital.,Division of Gastroenterology and Hematology, Shiga University of Medical Science
| | - Noriko Sugino
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital.,Department of Hematology/Oncology, Graduate School of Medicine, Kyoto University
| | | | - Yoko Nakagawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital
| | - Hideyo Hirai
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital
| | | | - Tatsuo Ichinohe
- Department of Hematology and Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital
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Iwasa M, Miura Y, Fujishiro A, Fujii S, Sugino N, Yoshioka S, Yokota A, Hishita T, Hirai H, Andoh A, Ichinohe T, Maekawa T. Bortezomib interferes with adhesion of B cell precursor acute lymphoblastic leukemia cells through SPARC up-regulation in human bone marrow mesenchymal stromal/stem cells. Int J Hematol 2017; 105:587-597. [DOI: 10.1007/s12185-016-2169-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 12/21/2016] [Accepted: 12/21/2016] [Indexed: 12/20/2022]
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Sugino N, Miura Y, Yao H, Iwasa M, Fujishiro A, Fujii S, Hirai H, Takaori-Kondo A, Ichinohe T, Maekawa T. Early osteoinductive human bone marrow mesenchymal stromal/stem cells support an enhanced hematopoietic cell expansion with altered chemotaxis- and adhesion-related gene expression profiles. Biochem Biophys Res Commun 2016; 469:823-9. [DOI: 10.1016/j.bbrc.2015.12.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 12/15/2015] [Indexed: 11/28/2022]
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23
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Uchiyama T, Kawabata H, Miura Y, Yoshioka S, Iwasa M, Yao H, Sakamoto S, Fujimoto M, Haga H, Kadowaki N, Maekawa T, Takaori-Kondo A. The role of growth differentiation factor 15 in the pathogenesis of primary myelofibrosis. Cancer Med 2015; 4:1558-72. [PMID: 26276681 PMCID: PMC4618626 DOI: 10.1002/cam4.502] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 07/02/2015] [Accepted: 07/03/2015] [Indexed: 11/23/2022] Open
Abstract
Growth differentiation factor 15 (GDF15) is a pleiotropic cytokine that belongs to the transforming growth factor-β superfamily. Elevated serum concentrations of this cytokine have been reported in patients with various malignancies. To assess the potential roles of GDF15 in hematologic malignancies, we measured its serum levels in patients with these diseases. We found that serum GDF15 levels were elevated in almost all these patients, particularly in patients with primary myelofibrosis (PMF). Immunohistochemical staining of bone marrow (BM) specimens revealed that GDF15 was strongly expressed by megakaryocytes, which may be sources of increased serum GDF15 in PMF patients. Therefore, we further assessed the contribution of GDF15 to the pathogenesis of PMF. Recombinant human (rh) GDF15 enhanced the growth of human BM mesenchymal stromal cells (BM-MSCs), and it enhanced the potential of these cells to support human hematopoietic progenitor cell growth in a co-culture system. rhGDF15 enhanced the growth of human primary fibroblasts, but it did not affect their expression of profibrotic genes. rhGDF15 induced osteoblastic differentiation of BM-MSCs in vitro, and pretreatment of BM-MSCs with rGDF15 enhanced the induction of bone formation in a xenograft mouse model. These results suggest that serum levels of GDF15 in PMF are elevated, that megakaryocytes are sources of this cytokine in BM, and that GDF15 may modulate the pathogenesis of PMF by enhancing proliferation and promoting osteogenic differentiation of BM-MSCs.
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Affiliation(s)
- Tatsuki Uchiyama
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Kawabata
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Satoshi Yoshioka
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan.,Division of Gastroenterology and Hematology, Shiga University of Medical Science, Otsu, Japan
| | - Hisayuki Yao
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Soichiro Sakamoto
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masakazu Fujimoto
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Hironori Haga
- Department of Diagnostic Pathology, Kyoto University Hospital, Kyoto, Japan
| | - Norimitsu Kadowaki
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Akifumi Takaori-Kondo
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Tamura A, Hirai H, Yokota A, Sato A, Shoji T, Kashiwagi T, Iwasa M, Fujishiro A, Miura Y, Maekawa T. Accelerated apoptosis of peripheral blood monocytes in Cebpb-deficient mice. Biochem Biophys Res Commun 2015; 464:654-8. [PMID: 26168729 DOI: 10.1016/j.bbrc.2015.07.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 07/08/2015] [Indexed: 12/20/2022]
Abstract
The CCAAT/enhancer-binding protein β (C/EBPβ) transcription factor is required for granulopoiesis under stress conditions. However, little is known about its roles in steady state hematopoiesis. Here, we analyzed the peripheral blood and bone marrow of Cebpb(-/-) mice at steady state by flow cytometry and unexpectedly found that the number of peripheral blood monocytes was severely reduced, while the number of bone marrow monocytes was maintained. The ability of Cebpb(-/-) bone marrow cells to give rise to macrophages/monocytes in vitro was comparable to that of wild-type bone marrow cells. Apoptosis of monocytes was enhanced in the peripheral blood, but not in the bone marrow of Cebpb(-/-) mice. These results indicate that C/EBPβ is required for the survival of monocytes in peripheral blood.
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Affiliation(s)
- Akihiro Tamura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Hideyo Hirai
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan.
| | - Asumi Yokota
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Atsushi Sato
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Tsukimi Shoji
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Takahiro Kashiwagi
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan; Division of Gastroenterology and Hematology, Shiga University of Medical Science, Otsu, Japan
| | - Aya Fujishiro
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan; Division of Gastroenterology and Hematology, Shiga University of Medical Science, Otsu, Japan
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy, Kyoto University Hospital, Kyoto, Japan
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25
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Yoshioka S, Miura Y, Iwasa M, Fujishiro A, Yao H, Miura M, Fukuoka M, Nakagawa Y, Yokota A, Hirai H, Ichinohe T, Takaori-Kondo A, Maekawa T. Isolation of mesenchymal stromal/stem cells from small-volume umbilical cord blood units that do not qualify for the banking system. Int J Hematol 2015; 102:218-29. [PMID: 26121953 DOI: 10.1007/s12185-015-1828-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 06/09/2015] [Accepted: 06/10/2015] [Indexed: 12/21/2022]
Abstract
The clinical application of mesenchymal stromal/stem cells (MSCs) has been extensively explored. In this study, we examined the availability of freshly donated umbilical cord blood (UCB) units that do not qualify for the Japanese banking system for transplantation because of their small volume as a source of MSCs. Forty-five UCB units were used. The median volume of each UCB unit and number of nucleated cells per unit were 40 mL and 5.39 × 10(8), respectively. MSCs were successfully isolated from 18 of 45 units (40 %). The MSC isolation rate was not affected by cell processing method or the interval between delivery and cell processing. The volume of the UCB unit and the mononuclear cell count were predictive factors of the MSC isolation rate. MSCs were effectively isolated by selecting UCB units with a volume of ≥54 mL and containing ≥1.28 × 10(8) mononuclear cells, yielding a MSC isolation rate of >70 %. UCB-derived MSCs were similar to bone marrow-derived MSCs in terms of their morphology, surface marker expression, and differentiation potential, apart from adipogenesis. Our data indicate that UCB units that are currently discarded due to inadequate volume should be reconsidered as a source of MSCs using the well-established UCB banking system.
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Affiliation(s)
- Satoshi Yoshioka
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, 650-0046, Japan
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26
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Ishiwata R, Iwasa M. Extracellular and intracellular factors regulating the migration direction of a chemotactic cell in traveling-wave chemotaxis. Phys Biol 2015; 12:026004. [PMID: 25787170 DOI: 10.1088/1478-3975/12/2/026004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This report presents a simple model that describes the motion of a single Dictyostelium discoideum cell exposed to a traveling wave of cyclic adenosine monophosphate (cAMP). The model incorporates two types of responses to stimulation by cAMP: the changes in the polarity and motility of the cell. The periodic change in motility is assumed to be induced by periodic cAMP stimulation on the basis of previous experimental studies. Consequently, the net migration of the cell occurs in a particular direction with respect to wave propagation, which explains the migration of D. discoideum cells in aggregation. The wave period and the difference between the two response times are important parameters that determine the direction of migration. The theoretical prediction compared with experiments presented in another study. The transition from the single-cell state of the population of D. discoideum cells to the aggregation state is understood to be a specific example of spontaneous breakage of symmetry in biology.
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Affiliation(s)
- R Ishiwata
- Department of Complex Systems Science, Graduate School of Information Science, Nagoya University, Nagoya 4648601, Japan
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27
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Kirinoki M, Hitosugi M, Kato-Hayashi N, Iwasa M, Chigusa Y. Discovery of Liopiophila varipes and Protopiophila contecta (Diptera: Piophilidae) from human cadavers. Forensic Sci Int 2015; 248:e8-12. [DOI: 10.1016/j.forsciint.2014.12.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 11/23/2014] [Accepted: 12/24/2014] [Indexed: 10/24/2022]
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28
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Chelakkot-Govindalayathil AL, Mifuji-Moroka R, D'Alessandro-Gabazza CN, Toda M, Matsuda Y, Gil-Bernabe P, Roeen Z, Yasuma T, Yano Y, Gabazza EC, Iwasa M, Takei Y. Protein S exacerbates alcoholic hepatitis by stimulating liver natural killer T cells. J Thromb Haemost 2015; 13:142-54. [PMID: 25399514 DOI: 10.1111/jth.12789] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 11/05/2014] [Indexed: 12/15/2022]
Abstract
BACKGROUND Alcohol consumption is a major cause of liver injury but the mechanisms are not completely understood. Protein S (PS) is an anticoagulant glycoprotein with multiple functions. The role of PS in liver injury is unknown. OBJECTIVES This study investigated the role of PS in acute alcoholic hepatitis. METHODS A mouse overexpressing human PS (hPS-TG) was generated in which acute hepatitis was induced by intraperitoneal injection of ethanol. RESULTS The levels of serum liver enzymes and liver tissue inflammatory cytokines and the degree of hepatic steatosis were significantly increased in hPS-TG mice treated with ethanol compared with ethanol-treated wild type (WT) mice. Cell expansion, activation and inhibition of apoptosis were significantly augmented in natural killer T (NKT) cells from hPS-TG mice compared with WT mice. Liver mononuclear cells from hPS-TG mice express higher levels of inflammatory cytokines than those from WT mice after stimulation with a specific stimulant of NKT cells in vitro. In a co-culture system of hepatocytes and NKT cells, the effects of PS on ethanol-mediated cell injury were suppressed by a CD1d neutralizing antibody. Alcoholic liver injury was significantly improved in mice pre-treated with PS siRNA and anti-protein S antibody compared with control mice. Patients with alcoholic hepatitis showed significantly increased plasma PS levels and enhanced liver expression of PS and CD1d compared with controls. CONCLUSIONS The results of this study suggest that PS exacerbates acute alcoholic hepatitis by inhibiting apoptosis of activated NKT cells.
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MESH Headings
- Animals
- Antibodies, Neutralizing/pharmacology
- Antigens, CD1d/immunology
- Antigens, CD1d/metabolism
- Apoptosis
- Blood Proteins/genetics
- Blood Proteins/metabolism
- Case-Control Studies
- Cells, Cultured
- Coculture Techniques
- Disease Models, Animal
- Ethanol
- Fatty Liver, Alcoholic/immunology
- Fatty Liver, Alcoholic/metabolism
- Fatty Liver, Alcoholic/pathology
- Hepatitis, Alcoholic/genetics
- Hepatitis, Alcoholic/immunology
- Hepatitis, Alcoholic/metabolism
- Hepatitis, Alcoholic/pathology
- Hepatitis, Alcoholic/prevention & control
- Hepatocytes/immunology
- Hepatocytes/metabolism
- Hepatocytes/pathology
- Humans
- Inflammation Mediators/immunology
- Inflammation Mediators/metabolism
- Liver/immunology
- Liver/metabolism
- Liver/pathology
- Lymphocyte Activation
- Male
- Mice, Inbred C57BL
- Mice, Transgenic
- Natural Killer T-Cells/immunology
- Natural Killer T-Cells/metabolism
- Protein S/genetics
- Protein S/metabolism
- RNAi Therapeutics
- Severity of Illness Index
- Signal Transduction
- Up-Regulation
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29
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Yao H, Miura Y, Yoshioka S, Miura M, Hayashi Y, Tamura A, Iwasa M, Sato A, Hishita T, Higashi Y, Kaneko H, Ashihara E, Ichinohe T, Hirai H, Maekawa T. Parathyroid Hormone Enhances Hematopoietic Expansion Via Upregulation of Cadherin-11 in Bone Marrow Mesenchymal Stromal Cells. Stem Cells 2014; 32:2245-55. [DOI: 10.1002/stem.1701] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 02/05/2014] [Accepted: 02/20/2014] [Indexed: 02/03/2023]
Affiliation(s)
- Hisayuki Yao
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
| | - Yasuo Miura
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
| | - Satoshi Yoshioka
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
- Department of Hematology/Oncology; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - Masako Miura
- Department of Medicine and Clinical Science; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - Yoshihiro Hayashi
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
- Division of Gastroenterology and Hematology; Shiga University of Medical Science; Ōtsu Shiga Japan
| | - Akihiro Tamura
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
| | - Masaki Iwasa
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
- Division of Gastroenterology and Hematology; Shiga University of Medical Science; Ōtsu Shiga Japan
| | - Atsushi Sato
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
| | - Terutoshi Hishita
- Department of Hematology; National Hospital Organization Himeji Medical Center; Himeji Hyogo Japan
| | - Yayoi Higashi
- Department of Gynecology and Obstetrics; Japanese Red Cross Kyoto Daini Hospital; Kyoto Japan
| | - Hitomi Kaneko
- Department of Hematology; Osaka Red Cross Hospital; Osaka Japan
| | - Eishi Ashihara
- Department of Clinical and Translational Physiology; Kyoto Pharmaceutical University; Kyoto Japan
| | - Tatsuo Ichinohe
- Department of Hematology and Oncology; Research Institute for Radiation Biology and Medicine, Hiroshima University; Hiroshima Japan
| | - Hideyo Hirai
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
| | - Taira Maekawa
- Department of Transfusion Medicine and Cell Therapy; Kyoto University Hospital; Kyoto Japan
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30
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Yoshimoto N, Nishiyama T, Yamashita H, Takahashi S, Shiraki N, Sugiura H, Endo Y, Iwasa M, Asano T, Hato Y, Fujii Y, Toyama T. Abstract P5-13-07: Genetic polymorphism of estrogen metabolizing enzyme CYP17A1 rs743572 impacts on serum testosterone level in Japanese premenopausal women. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p5-13-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The incidence of breast cancer in Japanese women has doubled in all age groups over the past two decades. We recently demonstrated that this marked increase is mostly due to an increase in the estrogen receptor (ER)-positive subtype, and we created risk prediction models for ER-positive breast cancer in both pre- and post- menopausal women using genetic factors (single nucleotide polymorphism (SNP)), environmental risk factors, serum hormones and growth factors by logistic regression analysis. Serum level of testosterone, which is the precursor of estradiol in estradiol synthesis, was found to be a risk predictor in both pre- and post- menopausal women. On the other hand, it has been reported that some SNPs, including those of estrogen-related genes such as ESR1 and CYP17A1, are correlated with breast cancer risk by genome-wide association studies. To acquire some insights into this mechanism, we analyzed genetic factors (14 SNPs), serum hormones and growth factors (estradiol, testosterone, prolactin, insulin-like growth factor 1 (IGF1) and IGF binding protein 3 (IGFBP3)) in 913 women with breast cancer and 278 disease-free controls for correlation between them.
Serum testosterone and prolactin levels were significantly higher in ER-positive breast cancer patients than in disease-free controls in both pre- (p<0.0001, p<0.0001) and post- (p<0.0001, p = 0.007) menopausal women, and serum estradiol level was significantly higher in ER-positive breast cancer patients than in disease-free controls only in premenopausal women (p = 0.0005). There were significant differences in serum hormone levels among the women with each SNP genotype (homozygotes of major allele, heterozygotes and homozygotes of minor allele), including testosterone among rs743572 genotype (p = 0.014), estradiol among rs827421 genotype (p = 0.016), IGF-1 among rs6905370 genotype (p = 0.032), and prolactin among rs1042522 genotype (p = 0.035) in premenopausal women, as well as estradiol among rs3803662 genotype (p = 0.027) and IGFBP3 among rs6905370 genotype (p = 0.036) in postmenopausal women. In particular, serum testosterone level was significantly different among the rs743572, which is one of the enzymes that convert testosterone to estradiol, of genotypes (AA: 0.308 +/- 0.180 ng/ml, AG: 0.319 +/- 0.193 ng/ml and GG: 0.380 +/- 0.187 ng/ml, p = 0.014). On the other hand, the rs743572 heterozygotes of CYP17A1 have been reported to have increased breast cancer risk than homozygotes of both the major allele and minor allele in premenopausal women. Further studies are required to clarify this mechanism.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P5-13-07.
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Affiliation(s)
- N Yoshimoto
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - T Nishiyama
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - H Yamashita
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - S Takahashi
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - N Shiraki
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - H Sugiura
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - Y Endo
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - M Iwasa
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - T Asano
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - Y Hato
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - Y Fujii
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - T Toyama
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan; Nagoya City West Medical Center, Nagoya, Aichi, Japan
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31
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Yamada Y, Kobayashi H, Iwasa M, Higashi K, Baba S, Ushikoshi H, Aoyama T, Nishigaki K, Takemura G, Minatoguchi S. Post-infarct administration of erythropoietin-encapsulated liposomes with Sialyl Lewis X (SLX) but not without SLX repairs infarcted myocardium in rabbits. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4189] [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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32
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Yoshimoto N, Nishiyama T, Toyama T, Takahashi S, Shiraki N, Sugiura H, Endo Y, Iwasa M, Asano T, Fujii Y, Yamashita H. Abstract P4-12-06: A mammographic density prediction model using environmental factors, endogenous hormones and growth factors in Japanese women. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p4-12-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The incidence of breast cancer in Japanese women has doubled in all age groups over the past two decades, making it important to evaluate breast cancer risk factors in Japanese women. It is well known that mammographic density is positively associated with breast cancer risk in Western countries, and mammographic density is known to be affected by some environmental factors, serum hormones, and growth factors. We performed stepwise variable selection in a multiple regression model with fifteen independent variables as described below, based on the Akaike information criteria (AIC) to build a mammographic density prediction model using a dataset of 1191 women (913 women with breast cancer and 278 disease-free controls). The variables included were: environmental risk factors (body-mass index (BMI), age at menarche, pregnancy, age at first birth, breastfeeding, family history of breast cancer, age at menopause, use of hormone replacement therapy, alcohol intake and smoking), serum hormones and growth factors (estradiol, testosterone, prolactin, insulin-like growth factor 1 (IGF1) and IGF binding protein 3 (IGFBP3)) and mammographic density. The resulting prediction model is:
Mammographic density = + 0.000476 (IGF1) −0.0605 (testosterone) − 0.0508 (IGFBP3) − 0.00683 (age) − 0.0175 (BMI) + 0.00883 (age at menarche) − 0.0153 (breast feeding), (R2 = 0.336).
In this model, IGF1, testosterone, IGFBP3, age, BMI, age at menarche, and breastfeeding were considered to be important factors. IGF1 and age at menarche were positively associated with mammographic density, while on the other hand testosterone, IGFBP3, age, BMI, and breast feeding were negatively associated with mammographic density. Further studies are required to build a modified model incorporating serial measurements of serum hormones and growth factors to take into account time-dependent changes of serum hormones and growth factors, and to assess its accuracy.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P4-12-06.
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Affiliation(s)
- N Yoshimoto
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - T Nishiyama
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - T Toyama
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - S Takahashi
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - N Shiraki
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - H Sugiura
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Y Endo
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - M Iwasa
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - T Asano
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Y Fujii
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - H Yamashita
- Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
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33
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Mifuji-Moroka R, Iwasa M, Sugimoto R, Katsurahara M, Fujita N, Kobayashi Y, Takei Y. Education and imaging. Hepatobiliary and pancreatic: Liver abscess associated with lipoma of duodenum. J Gastroenterol Hepatol 2012; 27:1129. [PMID: 22621459 DOI: 10.1111/j.1440-1746.2012.07139.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- R Mifuji-Moroka
- Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Tsu, Japan
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34
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Yoshimoto N, Nishiyama T, Toyama T, Takahashi S, Shiraki N, Sugiura H, Endo Y, Iwasa M, Fujii Y, Yamashita H. P4-10-11: Genetic and Environmental Predictors, Endogenous Hormones and Growth Factors and Risk of Estrogen Receptor-Positive Breast Cancer in Japanese Women. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p4-10-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The incidence of breast cancer in Japanese women has doubled in all age groups over the past two decades. We have recently demonstrated that this marked increase is mostly due to an increase in the estrogen receptor (ER)-positive subtype. It is necessary to establish risk factors capable of predicting the risk of ER-positive breast cancer which will enable the efficient selection of candidates for preventive chemotherapy. We analyzed genetic factors, including 14 single nucleotide polymorphisms (SNPs), environmental risk factors (body-mass index (BMI), age at menarche, pregnancy, age at first birth, breastfeeding, family history of breast cancer, age at menopause, use of hormone replacement therapy, alcohol intake and smoking), serum hormones and growth factors (estradiol, testosterone, prolactin, insulin-like growth factor 1 (IGF1) and IGF binding protein 3 (IGFBP3)) and mammographic density in 913 women with breast cancer and 278 disease-free controls. To identify important risk factors, risk prediction models for ER-positive breast cancer in both pre- and postmenopausal women were created by logistic regression analysis. In premenopausal women, 1 SNP (CYP19A1-rs10046), age, pregnancy, breastfeeding, alcohol intake, serum levels of prolactin, testosterone and IGFBP3 were considered to be risk predictors. In postmenopausal women, 1 SNP (TP53-rs1042522), age, BMI, age at menopause, serum levels of testosterone and IGF1 were identified as risk predictors. Risk factors may differ between women of different menopausal status, and inclusion of common genetic variants and serum hormone measurements as well as environmental factors might improve risk assessment models. Further validation studies will clarify appropriate risk groups for preventive chemotherapy.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P4-10-11.
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Affiliation(s)
- N Yoshimoto
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - T Nishiyama
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - T Toyama
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - S Takahashi
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - N Shiraki
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - H Sugiura
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Y Endo
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - M Iwasa
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Y Fujii
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - H Yamashita
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
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Toyama T, Kondo N, Endo Y, Sugiura H, Yoshimoto N, Iwasa M, Takahashi S, Iwase H, Fujii Y, Yamashita H. P3-03-01: Low Expression of microRNA-210 Is an Independent Good Prognostic Factor in Japanese Triple-Negative Breast Cancer Patients. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-03-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: microRNAs (miRNAs) have emerged as a new class of non-coding genes involved in regulating cell proliferation, differentiation, and viability. Recent studies have identified miR-210 among a set of hypoxia-regulated miRNAs and demonstrated a direct regulatory role of hypoxia-inducible factor-1 alpha (HIF-1 a) in its transcription. High expression of miR-210 has been reported to be a poor prognostic factor in several types of cancers including breast.
Materials and Methods: TaqMan MicroRNA assays for miR-210 expression were performed in 219 breast cancers (58 triple-negative (TNBCs), and 161 ER-positive and HER2−negative). Correlations between miR-210 expression and clinicopathological factors were analyzed. The effects of several variables on survival were tested by Cox proportional hazards regression analysis.
Results: miR-210 expression in TNBCs was significantly higher than in ER-positive and HER2−negative breast cancers (p<0.001). Patients whose TNBCs had low miR-210 expression experienced significantly better disease-free and overall survival compared with high miR-210 expressors (p=0.02 and p=0.05, respectively). Notably, among 40 node-negative TNBCs, 5-year disease-free survival was approximately 60% in patients whose tumors had high or intermediate miR-210 expression (n=26), while no patients with low miR-210 expression (n=14) suffered recurrent disease. Cox univariate and multivariate analyses demonstrated that low expression of miR-210 was an independent good prognostic factor in TNBCs.
Discussion: Although prognosis of patients with TNBCs is poor, those whose tumors expressed low levels of miR-210 had a more favorable prognosis. Thus, the degree of miR-210 expression might be a clinically useful prognostic factor for decision-making regarding treatment in the adjuvant setting, especially in node-negative TNBC patients.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-03-01.
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Affiliation(s)
- T Toyama
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - N Kondo
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Y Endo
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - H Sugiura
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - N Yoshimoto
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - M Iwasa
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - S Takahashi
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - H Iwase
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Y Fujii
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - H Yamashita
- 1Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan; Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
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Iwasa M, Hara N, Miyachi H, Tanaka H, Takeo M, Fujita N, Kobayashi Y, Kojima Y, Kaito M, Takei Y. Patients achieving clearance of HCV with interferon therapy recover from decreased retinol-binding protein 4 levels. J Viral Hepat 2009; 16:716-23. [PMID: 19302338 DOI: 10.1111/j.1365-2893.2009.01119.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Retinol-binding protein 4 (RBP4) is a recently identified adipokine that is elevated in the blood in several insulin-resistant states. We investigated the association between plasma RBP4 and histological and biochemical characteristics of chronic hepatitis C (CHC), as well as changes in RBP4 levels following interferon therapy. Eighty-one patients with CHC infected with genotype 1 received treatment with peginterferon plus ribavirin. Histological data were available for 41 out of 81 patients before treatment, and the degree of fibrosis, inflammation and steatosis was assessed. Plasma levels of RBP4 were determined in serial samples (before, at the end of treatment, and at 6 months post-treatment). RBP4 levels were lower in CHC patients than in control subjects (34.6 +/- 12.3 microg/mL vs 46.2 +/- 10.5 microg/mL; P <or= 0.001). Higher RBP4 levels were linked to lower alanine aminotransferase (ALT) (P < 0.01), higher cholinesterase (P < 0.01), hyperlipidaemia (P < 0.01), hyperglycaemia (P < 0.05), and higher platelet (P < 0.01) count in CHC patients. Plasma RBP4 levels tended to decrease concomitantly with the grade of histological fibrosis, activity, and steatosis. RBP4 levels at baseline were not a predictor of the response to antiviral therapy in CHC patients. After peginterferon plus ribavirin therapy, only patients who had achieved clearance of hepatitis C virus had higher post-treatment RBP4 levels. This study suggests that an association between RBP4 levels and abnormal metabolic features, and that liver function may determine RBP4 levels in CHC patents. This is further supported by the observation that RBP4 levels increased significantly after treatment only in sustained virological response (SVR) patients and reached levels comparable to those of healthy subjects.
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Affiliation(s)
- M Iwasa
- Department of Gastroenterology and Hepatology, Division of Clinical Medicine and Biomedical Sciences, Institute of Medical Science, Mie University Graduate School of Medicine, Tsu, Japan.
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Fujita N, Sugimoto R, Ma N, Tanaka H, Iwasa M, Kobayashi Y, Kawanishi S, Watanabe S, Kaito M, Takei Y. Comparison of hepatic oxidative DNA damage in patients with chronic hepatitis B and C. J Viral Hepat 2008; 15:498-507. [PMID: 18331251 DOI: 10.1111/j.1365-2893.2008.00972.x] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
8-Hydroxydeoxyguanosine (8-OHdG) is a promutagenic DNA lesion produced by hydroxyl radicals and is recognized as a useful marker in estimating DNA damage induced by oxidative stress. The aim of this study was to clarify the clinical significance of hepatic 8-OHdG levels in patients with chronic viral hepatitis. Hepatic 8-OHdG accumulation was investigated in patients with chronic hepatitis C (CH-C) (n = 77) and chronic hepatitis B (CH-B) (n = 34) by immunohistochemical staining of liver biopsy samples. 8-OHdG positive hepatocytes were significantly higher in patients with CH-C compared to CH-B (median 55.0 vs 18.8 cells/10(5) mum(2), P < 0.0001). The number of positive hepatocytes significantly increased with the elevation of serum aminotransferase levels, especially in CH-C patients (8-OHdG vs alanine aminotransferase (ALT)/aspartate aminotrasferase (AST) were r = 0.738/0.720 in CH-C and 0.506/0.515 in CH-B). 8-OHdG reactivity was strongly correlated with body and hepatic iron storage markers in CH-C (vs serum ferritin, r = 0.615; vs hepatic total iron score, r = 0.520; vs hepatic hepcidin mRNA levels, r = 0.571), although it was related to serum HBV-DNA titers (r = 0.540) and age of patients (r = -0.559) in CH-B. These results indicate that hepatic oxidative DNA damage is common in chronic viral hepatitis, in particular chronic HCV-infected patients, suggesting a possible link between chronic hepatic inflammation and hepatocarcinogenesis. The strong positive correlation between hepatic DNA damage and iron overload suggests that iron content is one of the most likely mediators of hepatic oxidative stress and iron reduction may be beneficial to reduce the incidence of hepatic cancer in CH-C patients.
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Affiliation(s)
- N Fujita
- Department of Gastroenterology and Hepatology, Division of Clinical Medicine and Biomedical Science, Institute of Medical Sciences, Mie University Graduate School of Medicine, Mie, Japan.
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Iwasa M, Maruo T, Ueda M, Yamashita N. Adverse effects of ivermectin on the dung beetles, Caccobius jessoensis Harold, and rare species, Copris ochus Motschulsky and Copris acutidens Motschulsky (Coleoptera: Scarabaeidae), in Japan. Bull Entomol Res 2007; 97:619-625. [PMID: 17997876 DOI: 10.1017/s0007485307005329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Effects of the antiparasitic drug, ivermectin, on the dung beetles, Caccobius jessoensis Harold, 1867 and the rare species, Copris ochus Motschulsky, 1860 and Copris acutidens Motschulsky, 1860 were studied in laboratory and field experiments in Hokkaido, Japan. Ivermectin was detected in dung from 1 to 21 or 28 days following treatment, with a peak on the first day after treatment in two pour-on administrations (500 microg kg(-1)), although there were considerable differences between the two peaks. In C. jessoensis, brood balls constructed by the female were not reduced in the dung of treated cattle except for seven days after treatment in experiment 2. Also, there was no significant difference in the mean weight of brood balls between dung from treated and control cattle. However, the emergence rates were significantly reduced in dung 1-3 days after treatment. In the field study, brood balls constructed by C. jessoensis were more abundant in dung from treated cattle in experiment 1, but adult emergence was significantly reduced at one and seven days after treatments. Adult mortality of C. ochus Motschulsky at 90 days after the beginning of rearing was 11.1% in dung from control cattle with 22 brood balls constructed, whereas it was 84% in dung from treated cattle with no brood balls and/or ovipositioning. Also, in C. acutidens Motschulsky, adult mortality at 90 days after the beginning of rearing was 3.6% in dung from control cattle with 13 brood balls constructed, whereas it was 94.1% in dung from treated cattle with no brood balls or ovipositioning. The environmental risk in the use of ivermectin during breeding period of dung beetles in pasture is discussed.
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Affiliation(s)
- M Iwasa
- Laboratory of Entomology, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan.
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Fujita N, Kaito M, Kai M, Sugimoto R, Tanaka H, Horiike S, Konishi M, Iwasa M, Watanabe S, Adachi Y. Effects of bezafibrate in patients with chronic hepatitis C virus infection: combination with interferon and ribavirin. J Viral Hepat 2006; 13:441-8. [PMID: 16792537 DOI: 10.1111/j.1365-2893.2005.00718.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [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] [Indexed: 12/15/2022]
Abstract
An association of hepatitis C virus (HCV) with low-density lipoproteins (LDL) in serum of patients with chronic hepatitis C (CHC) has been suggested. We conducted a prospective study in CHC patients complicated with hyperlipidaemia, to examine whether bezafibrate, which is commonly used for treatment of hyperlipidaemia, reduces serum HCV-RNA titre and improves liver dysfunction. Fifteen patients received daily oral bezafibrate treatment (400 mg/day) for 8 weeks, and its effects on serum lipids, transaminases, HCV-RNA titres, and HCV-RNA titres bound to LDL were evaluated. Fifteen untreated patients with CHC and hyperlipidaemia were used as controls. The mean serum alanine aminotransferase levels and HCV-RNA titres significantly decreased at the end of bezafibrate therapy in the treated group (105 +/- 34 to 80 +/- 32 IU/L, P = 0.02 and 2.23 +/- 2.71 to 1.78 +/- 2.38 x 10(7) copies/mL, P < 0.01 respectively), but no changes were observed in the control group. Serum HCV-RNA titres bound to LDL, as quantified by immunoprecipitation using anti-LDL antibody, also decreased in all 15 treated patients [5.55 +/- 6.59 to 1.07 +/- 1.58 x 10(6) copies/ml, P < 0.01 (mean reduction rate was -78.5 +/- 17.0%)]. Sucrose density-gradient ultracentrifugation study revealed that HCV-RNA-decreased density fractions after the bezafibrate were identical to LDL-density fractions (1.015-1.062 g/mL). Eight CHC patients were treated with bezafibrate, interferon, and ribavirin triple therapy for 32 weeks, and four patients achieved sustained virological response to therapy. This pilot study provides further evidence of an association between HCV and LDL in serum and suggests the potential usefulness of bezafibrate as an anti-HCV reagent for the treatment of CHC patients.
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Affiliation(s)
- N Fujita
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mie University School of Medicine, Mie, Japan.
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Iwasa M, Imamura Y, Noriki S, Nishi Y, Kato H, Fukuda M. Immunohistochemical detection of early-stage carcinogenesis of oral leukoplakia by increased DNA-instability and various malignancy markers. Eur J Histochem 2002; 45:333-46. [PMID: 11846001 DOI: 10.4081/1642] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The degree of DNA instability as determined by immunohistochemical staining with anti-single-stranded DNA antibody after acid hydrolysis (the DNA instability test) was used as a marker of malignancy. The test was applied to tissues of oral leukoplakia assessed histopathologically as hyperplasia (38 cases), mild (12 cases), moderate (11 cases) and severe (8 cases) dysplasia, and invasive squamous cell carcinoma (SCC, 20 cases). Tissues were subjected to immunohistochemical staining for proliferating cell nuclear antigen (PCNA), p53, DNA-fragmentation factor 45 (DFF45), analysis of various AgNORs parameters, and triple immunostaining for vascular endothelial growth factor (VEGF), CD34, and PCNA. The DNA instability test was positive in 20 (100%) SCC cases, 8 (100%) severe dysplasia cases, 8 (72.7%) moderate dysplasia cases, 6 (50.0%) mild dysplasia cases, and 9 (23.7%) hyperplasia cases, indicating malignancy. The proportion of lesions positive for PCNA, p53, DFF45, and values of AgNORs parameters steadily increased from hyperplasia to mild, moderate and severe dysplasia, and SCC, especially in those showing positive DNA instability test, indicative of malignancy. Based on these results, 44.9% of leukoplakia were malignant tissues, namely carcinoma in situ. The proportion of PCNA-positive vascular endothelial cells in the vicinity of VEGF-positive epithelial lesion was significantly higher than that of negative DNA instability lesions, as revealed by immunohistochemical triple staining for VEGF, CD34, and PCNA. Our results suggest that increased DNA instability, enhanced proliferative activity, p53 mutation, and induction of DFF45 and VEGF may allow cancer cell proliferation, enhance their survival by escaping apoptosis, and provide abundant nutrients during early-stage carcinogenesis of oral leukoplakia.
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Affiliation(s)
- M Iwasa
- Department of Pathology, Fukui Medical University, Yoshida-Gun, Japan
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Nakatome M, Matoba R, Ogura Y, Tun Z, Iwasa M, Maeno Y, Koyama H, Nakamura Y, Inoue H. Detection of cardiomyocyte apoptosis in forensic autopsy cases. Int J Legal Med 2002; 116:17-21. [PMID: 11924702 DOI: 10.1007/s004140100249] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The purpose of the present study was to determine reliable parameters for the detection of apoptotic cells for use as a diagnostic marker during the early stage of acute myocardial infarction (AMI) in forensic autopsy cases. Myocardial tissues taken from forensic autopsy cases were examined by immunohistochemical and molecular-biological methods using the terminal deoxynucleotidyl transferase-mediated dUTP biotin nick end-labelling (TUNEL) and the DNA laddering methods. In cases of AMI with a time period between 2 h from onset to death and 20 h post-mortem time, the nuclei of cardiomyocytes were stained positive with the TUNEL method and DNA fragmentation of myocardial cells was detected by agarose gel electrophoresis. Similar findings were obtained in cases of carbon monoxide (CO) intoxication. However, no apoptotic cells were found in other cases such as methamphetamine (MAP) intoxication, tetrodotoxin intoxication, alcohol intoxication, asphyxia, head injury, heart injury or myocarditis. These findings suggested that it would be possible to apply TUNEL-positive cells as a diagnostic marker during the early stages of AMI.
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Affiliation(s)
- M Nakatome
- Department of Legal Medicine, Course of Social Medicine, Osaka University Graduate School of Medicine, Suita City, Japan.
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Cui XL, Iwasa M, Kuge H, Sasaguri S, Ogoshi S. Route of feeding influences the production and expression of tumor necrosis factor alpha in burned rats. Surg Today 2002; 31:615-25. [PMID: 11495157 DOI: 10.1007/s005950170096] [Citation(s) in RCA: 10] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The effect of nutritional route on tumor necrosis factor alpha (TNF-alpha) production in burned rats was examined. Scald burns covering about 30% of the whole body surface area were inflicted on 43 male Wistar rats weighing about 200g. The animals were divided into three groups: CHOW (n = 10), total parenteral nutrition (TPN) (n = 22), and total enteral nutrition (TEN) (n = 11), continuously given a chow diet, TPN solution, or an enteral diet, respectively, for 7 days after the burn injury. The rate of detection of TNF-alpha in plasma on day 7 was significantly higher in the TPN group than in the CHOW or TEN groups. The messenger RNA (mRNA) expression of TNF-alpha was significantly increased in the spleen, lungs, liver, and ileum of the rats receiving TPN compared with the CHOW and TEN rats. On the other hand, the expression of TNF-alpha mRNA was markedly decreased in the thymus of the TPN group compared with the CHOW group. The mortality rate in the TPN group (63.6%) was higher than that in the CHOW (0.0%) or TEN (27.3%) groups on day 7 after burn injury. These data suggest that TPN increases the expression of TNF-alpha mRNA in organ tissues and systemic TNF-alpha production, and reduces the survival rate of rats after thermal injury, but TEN does not.
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Affiliation(s)
- X L Cui
- Department of Surgery II, Kochi Medical School, Okoh, Japan
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Koyama H, Iwasa M, Maeno Y, Tsuchimochi T, Isobe I, Yoshimi SN, Jun MO, Matsumoto T, Horii T, Nagao M. Y-chromosomal STR haplotype in the Japanese population. Forensic Sci Int 2001; 124:221-3. [PMID: 11792515 DOI: 10.1016/s0379-0738(01)00572-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Allele and haplotype frequencies of seven Y-chromosome STR loci from samples of 108 unrelated Japanese males living in Aichi Prefecture.
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Affiliation(s)
- H Koyama
- Department of Legal Medicine, Medical School, Nagoya City University Hospital, Kawasumi Mizuho-ku, Nagoya 467-8601, Japan
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Kimura Y, Iwasa M, Hirota N. Solvent Density and Species Dependence of the Fluorescence Stokes-Shift and Lifetime of Coumarin 152. BCSJ 2001. [DOI: 10.1246/bcsj.74.1863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Iwasa Y, Iwasa M, Ohmori Y, Ogoshi S. [Nucleoside/nucleotide mixture]. Nihon Rinsho 2001; 59 Suppl 5:922-8. [PMID: 11439683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Affiliation(s)
- Y Iwasa
- Department of Surgery II, Kochi Medical School
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Iwasa M, Iwasa Y, Ogoshi S. [Assessment for effects of the nutritional support]. Nihon Rinsho 2001; 59 Suppl 5:147-52. [PMID: 11439512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- M Iwasa
- Department of Surgery II, Kochi Medical School
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Iwasa M, Iwasa Y, Ogoshi S. [Indices for nutritional assessment with multiple parameters]. Nihon Rinsho 2001; 59 Suppl 5:131-5. [PMID: 11439509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- M Iwasa
- Department of Surgery II, Kochi Medical School
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Iwasa M, Iwasa Y, Ogoshi S. [Indications for the nutritional support and route of administration]. Nihon Rinsho 2001; 59 Suppl 5:141-6. [PMID: 11439511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- M Iwasa
- Department of Surgery II, Kochi Medical School
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Iwasa Y, Iwasa M. [Properties of the available formulas for enteral nutrition]. Nihon Rinsho 2001; 59 Suppl 5:281-92. [PMID: 11439539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- Y Iwasa
- Department of Surgery II, Kochi Medical School
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