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Masuda Y, Yamazaki S, Honda A, Masamoto Y, Kurokawa M. Isolated massive pleural effusion as a manifestation of chronic graft versus host disease successfully treated with corticosteroid. Ann Hematol 2024; 103:1403-1407. [PMID: 38285080 PMCID: PMC10940441 DOI: 10.1007/s00277-024-05643-w] [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: 12/02/2023] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
Isolated pleural effusion is a rare manifestation of chronic graft versus host disease (cGVHD) after hematopoietic stem cell transplantation (HSCT). We herein report a 58-year-old woman presenting with massive pleural effusion approximately 1 year after allogeneic HSCT, who was successfully treated with corticosteroid. She had discontinued tacrolimus approximately 1 month before she presented with pleural effusion, which was attributed to cGVHD after a thorough exclusion process. This case illustrates a unique manifestation of atypical cGVHD and highlights the need for prompt therapy initiation.
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Affiliation(s)
- Yasutaka Masuda
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Sho Yamazaki
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Akira Honda
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Yosuke Masamoto
- Department of Cell Therapy and Transplantation Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
- Department of Cell Therapy and Transplantation Medicine, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo-Ku, Tokyo, 113-8655, Japan.
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Koh K, Tatsuki O, Sakuraba S, Yamazaki S, Yako H, Omae T. Neuropathies Following an Ultrasound-Guided Axillary Brachial Plexus Block. Local Reg Anesth 2023; 16:123-132. [PMID: 37693952 PMCID: PMC10488563 DOI: 10.2147/lra.s426515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/26/2023] [Indexed: 09/12/2023] Open
Abstract
Purpose Ultrasound-guided brachial plexus block (UGBPB) has interscalene, supraclavicular, infraclavicular, and axillary approaches. The axillary block is considered to be the safest and with fewer adverse events compared to the interscalene (eg, phrenic nerve block, spinal cord or vertebral artery puncture) and supraclavicular (eg, pneumothorax). However, with regard to postoperative neurological symptoms (PONS), it is controversial whether its incidence after an axillary block was higher than that after non-axillary approaches". In this study, we investigated whether the incidence of a neuropathy after an axillary block was higher than that after non-axillary approaches. Patients and Methods This was a single-center, retrospective cohort study. All UGBPBs were performed under general anesthesia between January 2014 and March 2020. The outcomes included the overall incidence of PONS and neuropathies for axillary and non-axillary approaches. The etiology, symptoms, and outcomes of patients were investigated. Results Of the 992 patients, 143 (14%) and 849 (86%) were subjected to axillary and non-axillary approaches, respectively. Among 19 cases (19.2:1000; 95% confidence interval [CI], 18.2-20.1) of PONS, four (4.0:1000; 95% CI, 3.8-4.2) were neuropathies attributed to the UGBPB, three (21.0:1000; 95% CI, 18.1-23.8) to the axillary and one (2.8:1000; 95% CI, 2.6-3.1) to non-axillary approaches. The incidence of neuropathies after an axillary block was significantly higher than that after non-axillary approaches (P = 0.005). Conclusion The incidence of neuropathies after US-guided axillary block under general anesthesia was significantly higher than that after non-axillary approaches.
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Affiliation(s)
- Keito Koh
- Department of Anesthesiology and Pain Medicine, Juntendo University Shizuoka Hospital, Izunokuni, Japan
| | - Onishi Tatsuki
- Department of Anesthesiology and Pain Medicine, Juntendo University Shizuoka Hospital, Izunokuni, Japan
| | - Sonoko Sakuraba
- Department of Anesthesiology and Pain Medicine, Juntendo University Shizuoka Hospital, Izunokuni, Japan
| | - Sho Yamazaki
- Department of Anesthesiology and Pain Medicine, Juntendo University Shizuoka Hospital, Izunokuni, Japan
| | - Hajime Yako
- Department of Anesthesiology and Pain Medicine, Juntendo University Shizuoka Hospital, Izunokuni, Japan
| | - Takeshi Omae
- Department of Anesthesiology and Pain Medicine, Juntendo University Shizuoka Hospital, Izunokuni, Japan
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Furuminato K, Minatoya S, Senoo E, Goto T, Yamazaki S, Sakaguchi M, Toyota K, Iguchi T, Miyagawa S. The role of mesenchymal estrogen receptor 1 in mouse uterus in response to estrogen. Sci Rep 2023; 13:12293. [PMID: 37516793 PMCID: PMC10387046 DOI: 10.1038/s41598-023-39474-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023] Open
Abstract
Estrogens play important roles in uterine growth and homeostasis through estrogen receptors (ESR1 and ESR2). To address the role of ESR1-mediated tissue events in the murine uterus, we analyzed mice with a mesenchymal tissue-specific knockout of Esr1. Isl1-driven Cre expression generated Esr1 deletion in the uterine stroma and endometrium (Isl-Esr1KO). We showed that overall structure of the Isl1-Esr1KO mouse uterus developed normally, but estrogen responsiveness and subsequent growth were defective, suggesting that mesenchymal ESR1 is necessary for both epithelial and mesenchymal cell proliferation. Furthermore, RNA-seq analysis revealed that the majority of estrogen-induced genes were regulated by stromal ESR1. In control mice, E2 administration induced 9476 up-regulated differentially expressed genes (DEGs), whereas only 1801 up-regulated DEGs were induced by E2 in Isl1-Esr1KO mice. We further showed that stromal ESR1-regulated genes in the mouse uterus included several growth factors and cytokines, which are potential factors that regulate epithelial and stromal tissue interaction, and also genes involved in lipid homeostasis. Therefore, we infer that stromal ESR1 expression is indispensable for most estrogen actions in the mouse uterus and the current results provide new insights into estrogen-mediated homeostasis in female reproductive organs.
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Affiliation(s)
- Keita Furuminato
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan
| | - Saki Minatoya
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan
| | - Eriko Senoo
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan
| | - Tatsuki Goto
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan
| | - Sho Yamazaki
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan
| | - Moeka Sakaguchi
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan
| | - Kenji Toyota
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan
- Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Noto, Ishikawa, 927-0552, Japan
| | - Taisen Iguchi
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Kanagawa, 236-0027, Japan
| | - Shinichi Miyagawa
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Niijuku 6-3-1, Katsushika, Tokyo, 125-8585, Japan.
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Yamazaki S, Yamaguchi K, Someya A, Nagaoka I, Hayashida M. Anti-Inflammatory Action of Dexmedetomidine on Human Microglial Cells. Int J Mol Sci 2022; 23:ijms231710096. [PMID: 36077505 PMCID: PMC9455981 DOI: 10.3390/ijms231710096] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/25/2022] [Accepted: 08/31/2022] [Indexed: 12/03/2022] Open
Abstract
Neuroinflammation, where inflammatory cytokines are produced in excess, contributes to the pathogenesis of delirium. Microglial cells play a central role in neuroinflammation by producing and releasing inflammatory cytokines in response to infection, tissue damage and neurodegeneration. Dexmedetomidine (DEX) is a sedative, which reduces the incidence of delirium. Thus, we hypothesized that DEX may alleviate delirium by exhibiting anti-inflammatory action on microglia. In the present study, we investigated the anti-inflammatory action of DEX on human microglial HMC3 cells. The results indicated that DEX partially suppressed the IL-6 and IL-8 production by lipopolysaccharide (LPS)-stimulated HMC3 cells as well as the phosphorylation of p38 MAPK and IκB and the translocation of NF-κB. Furthermore, DEX substantially suppressed IL-6 and IL-8 production by unstimulated HMC3 cells as wells as the phosphorylation of p38 MAPK and IκB and the translocation of NF-κB. These observations suggest that DEX exhibits anti-inflammatory action on not only LPS-stimulated but also unstimulated microglial cells via the suppression of inflammatory signaling and cytokine production.
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Affiliation(s)
- Sho Yamazaki
- Department of Anesthesiology and Pain Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo 113-8421, Japan
| | - Keisuke Yamaguchi
- Department of Anesthesiology and Pain Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo 113-8421, Japan
- Department of Anesthesiology and Pain Medicine, Juntendo Tokyo Koto Geriatric Medical Center, 3-3-20 Shinsuna, Koto-Ku, Tokyo 136-0075, Japan
- Correspondence:
| | - Akimasa Someya
- Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo 113-8421, Japan
| | - Isao Nagaoka
- Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo 113-8421, Japan
- Faculty of Medical Science, Juntendo University, 6-8-1 Hinode, Urayasu 279-0013, Japan
| | - Masakazu Hayashida
- Department of Anesthesiology and Pain Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-Ku, Tokyo 113-8421, Japan
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Takaki S, Shimbo T, Ikegami K, Kitayama T, Yamamoto Y, Yamazaki S, Mori S, Tamai K. Generation of a recessive dystrophic epidermolysis bullosa mouse model with patient-derived compound heterozygous mutations. J Transl Med 2022; 102:574-580. [PMID: 35152273 DOI: 10.1038/s41374-022-00735-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 01/04/2022] [Accepted: 01/04/2022] [Indexed: 11/09/2022] Open
Abstract
Recessive dystrophic epidermolysis bullosa (RDEB) is an intractable genetic disease of the skin caused by mutations in the COL7A1 gene. The majority of patients with RDEB harbor compound heterozygous mutations-two distinct mutations on each chromosome-without any apparent hotspots in the COL7A1 mutation pattern. This situation has made it challenging to establish a reliable RDEB mouse model with mutations that accurately mimic the genomic background of patients. Here, we established an RDEB mouse model harboring patient-type mutations in a compound heterozygous manner, using the CRISPR-based genome-editing technology i-GONAD. We selected two mutations, c.5818delC and E2857X, that have frequently been identified in cohorts of Japanese patients with RDEB. These mutations were introduced into the mouse genome at locations corresponding to those identified in patients. Mice homozygous for the 5818delC mutation developed severe RDEB-like phenotypes and died immediately after birth, whereas E2857X homozygous mice did not have a shortened lifespan compared to wild-type mice. Adult E2857X homozygous mice showed hair abnormalities, syndactyly, and nail dystrophy; these findings indicate that E2857X is indeed pathogenic in mice. Mice with the c.5818delC/E2857X compound heterozygous mutation presented an intermediate phenotype between the c.5818delC and E2857X homozygous mice. Single-cell RNA sequencing further clarified that the intrafollicular keratinocytes in c.5818delC/E2857X compound heterozygous mice exhibited abnormalities in cell cycle regulation. The proposed strategy to produce compound heterozygous mice, in addition to the established mouse line, will facilitate research on RDEB pathogenesis to develop a cure for this devastating disease.
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Affiliation(s)
- Satoshi Takaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan.,StemRIM Inc., Ibaraki, Osaka, Japan
| | - Takashi Shimbo
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan. .,StemRIM Institute of Regeneration-Inducing Medicine, Osaka University, Suita, Japan.
| | | | - Tomomi Kitayama
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan.,StemRIM Inc., Ibaraki, Osaka, Japan
| | | | - Sho Yamazaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan.,StemRIM Inc., Ibaraki, Osaka, Japan
| | - Shiho Mori
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Katsuto Tamai
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan.
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Yamazaki S. T122 Better quality management and greater operating efficiency with GEM® PREMIER™ 5000 with intelligent quality management 2 (IQM®2) at Yokosuka General Hospital, Uwamachi (Kanagawa, Japan). Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Li YT, Yamazaki S, Takaki E, Ouchi Y, Kitayama T, Tamai K. PDGFRα-lineage origin directs monocytes to trafficking proficiency to support peripheral immunity. Eur J Immunol 2021; 52:204-221. [PMID: 34708880 PMCID: PMC9299050 DOI: 10.1002/eji.202149479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/11/2021] [Accepted: 10/25/2021] [Indexed: 12/03/2022]
Abstract
Multiple embryonic precursors give rise to leukocytes in adults while the lineage‐based functional impacts are underappreciated. Mesodermal precursors expressing PDGFRα appear transiently during E7.5‐8.5 descend to a subset of Lin–Sca1+Kit+ hematopoietic progenitors found in adult BM. By analyzing a PDGFRα‐lineage tracing mouse line, we here report that PDGFRα‐lineage BM F4/80+SSClo monocytes/macrophages are solely Ly6C+LFA‐1hiMac‐1hi monocytes enriched on the abluminal sinusoidal endothelium while Ly6C–LFA‐1loMac‐1lo macrophages are mostly from non‐PDGFRα‐lineage in vivo. Monocytes with stronger integrin profiles outcompete macrophages for adhesion on an endothelial monolayer or surfaces coated with ICAM‐1‐Fc or VCAM‐1‐Fc. Egress of PDGFRα‐lineage‐rich monocytes and subsequent differentiation to peripheral macrophages spatially segregates them from non‐PDGFRα‐lineage BM‐resident macrophages and allows functional specialization since macrophages derived from these egressing monocytes differ in morphology, phenotype, and functionality from BM‐resident macrophages in culture. Extravasation preference for blood PDGFRα‐lineage monocytes varies by tissues and governs the local lineage composition of macrophages. More PDGFRα‐lineage classical monocytes infiltrated into skin and colon but not into peritoneum. Accordingly, transcriptomic analytics indicated augmented inflammatory cascades in dermatitis skin of BM‐chimeric mice harbouring only PDGFRα‐lineage leukocytes. Thus, the PDGFRα‐lineage origin biasedly generates monocytes predestined for BM exit to support peripheral immunity following extravasation and macrophage differentiation.
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Affiliation(s)
- Yu-Tung Li
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | | | | | | | | | - Katsuto Tamai
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
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Takayama T, Yamazaki S, Matsuyama Y, Midorikawa Y, Shiina S, Izumi N, Hasegawa K, Kokudo N, Sakamoto M, Kubo S, Kudo M, Murakami T, Nakashima O. Prognostic grade for resecting hepatocellular carcinoma: multicentre retrospective study. Br J Surg 2021; 108:412-418. [PMID: 33793713 DOI: 10.1093/bjs/znaa109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 03/31/2020] [Accepted: 11/03/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Surgical treatment for hepatocellular carcinoma (HCC) is advancing, but a robust prediction model for survival after resection is not available. The aim of this study was to propose a prognostic grading system for resection of HCC. METHODS This was a retrospective, multicentre study of patients who underwent first resection of HCC with curative intent between 2000 and 2007. Patients were divided randomly by a cross-validation method into training and validation sets. Prognostic factors were identified using a Cox proportional hazards model. The predictive model was built by decision-tree analysis to define the resection grades, and subsequently validated. RESULTS A total of 16 931 patients from 795 hospitals were included. In the training set (8465 patients), four surgical grades were classified based on prognosis: grade A1 (1236 patients, 14.6 per cent; single tumour 3 cm or smaller and anatomical R0 resection); grade A2 (3614, 42.7 per cent; single tumour larger than 3 cm, or non-anatomical R0 resection); grade B (2277, 26.9 per cent; multiple tumours, or vascular invasion, and R0 resection); and grade C (1338, 15.8 per cent; multiple tumours with vascular invasion and R0 resection, or R1 resection). Five-year survival rates were 73.9 per cent (hazard ratio (HR) 1.00), 64.7 per cent (HR 1.51, 95 per cent c.i. 1.29 to 1.78), 50.6 per cent (HR 2.53, 2.15 to 2.98), and 34.8 per cent (HR 4.60, 3.90 to 5.42) for grades A1, A2, B, and C respectively. In the validation set (8466 patients), the grades had equivalent reproducibility for both overall and recurrence-free survival (all P < 0.001). CONCLUSION This grade is used to predict prognosis of patients undergoing resection of HCC.
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Affiliation(s)
- T Takayama
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - S Yamazaki
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Y Matsuyama
- Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - Y Midorikawa
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - S Shiina
- Department of Gastroenterology, Juntendo University School of Medicine, Tokyo, Japan
| | - N Izumi
- Department of Gastroenterology, Musashino Red Cross Hospital, Tokyo, Japan
| | - K Hasegawa
- Department of Hepato-biliary-pancreatic Surgery, School of Medicine, University of Tokyo, Tokyo, Japan
| | - N Kokudo
- Department of Hepato-biliary-pancreatic Surgery, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Sakamoto
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - S Kubo
- Department of Hepato-biliary-pancreatic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Kudo
- Department of Gastroenterology and Hepatology, Kinki University School of Medicine, Osaka-Sayama, Japan
| | - T Murakami
- Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - O Nakashima
- Department of Clinical Laboratory Medicine, Kurume University Hospital, Kurume, Japan
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Yamaguchi K, Yamazaki S, Kumakura S, Someya A, Iseki M, Inada E, Nagaoka I. Yokukansan, a Japanese Herbal Medicine, Suppresses Substance PInduced Production of Interleukin-6 and Interleukin-8 by Human U373 MG Glioblastoma Astrocytoma Cells. Endocr Metab Immune Disord Drug Targets 2021; 20:1073-1080. [PMID: 32003704 DOI: 10.2174/1871530320666200131103733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/15/2019] [Accepted: 11/25/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Yokukansan is a traditional Japanese herbal medicine that has an antiallodynic effect in patients with chronic pain. However, the mechanisms by which yokukansan inhibits neuropathic pain are unclear. OBJECTIVE This study aimed to investigate the molecular effects of yokukansan on neuroinflammation in U373 MG glioblastoma astrocytoma cells, which express a functional high-affinity neurokinin 1 receptor (substance P receptor), and produce interleukin (IL)-6 and IL-8 in response to stimulation by substance P (SP). METHODS We assessed the effect of yokukansan on the expression of ERK1/2, P38 MAPK, nuclear factor (NF)-κB, and cyclooxygenase-2 (COX-2) in U373 cells by western blot assay. Levels of IL-6 and IL-8 in conditioned medium obtained after stimulation of cells with SP for 24 h were measured by enzyme-linked immunosorbent assay. All experiments were conducted in triplicate. Results were analyzed by one-way ANOVA, and significance was accepted at p < 0.05. RESULTS Yokukansan suppressed SP-induced production of IL-6 and IL-8 by U373 MG cells, and downregulated SP-induced COX-2 expression. Yokukansan also inhibited phosphorylation of ERK1/2 and p38 MAPK, as well as nuclear translocation of NF-κB, induced by SP stimulation of U373 MG cells. CONCLUSION Yokukansan exhibits anti-inflammatory activity by suppressing SP-induced production of IL-6 and IL-8 and downregulating COX-2 expression in U373 MG cells, possibly via inhibition of the activation of signaling molecules, such as ERK1/2, p38 MAPK, and NF-κB.
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Affiliation(s)
- Keisuke Yamaguchi
- Department of Anesthesiology and Pain Medicine, Juntendo Tokyo Koto Geriatric Medical Center, 3-3-20 Shinsuna, Koto-ku, Tokyo 136-0075, Japan
| | - Sho Yamazaki
- Department of Anesthesiology and Pain Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Seiichiro Kumakura
- Department of Anesthesiology and Pain Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Akimasa Someya
- Department of Host Defense and Biochemical Research, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Masako Iseki
- Department of Anesthesiology and Pain Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Eiichi Inada
- Department of Anesthesiology and Pain Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Isao Nagaoka
- Department of Host Defense and Biochemical Research, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
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Solves P, Lozano M, Zhiburt E, Anguita Velasco J, Maria Pérez-Corral A, Monsalvo-Saornil S, Yamazaki S, Okazaki H, Selleng K, Aurich K, Krüger W, Buser A, Holbro A, Infanti L, Stehle G, Pierelli L, Matteocci A, Rigacci L, De Vooght KMK, Kuball JHE, Fielding KL, Westerman DA, Wood EM, Cohn CS, Johnson A, Koh MBC, Qadir D, Cserti-Gazdewich C, Daguindau E, Angelot-Delettre F, Tiberghien P, Wendel-Neto S, Fachini RM, Morton S, Craddock C, Lumley M, Antoniewicz-Papis J, Hałaburda K, Łętowska M, Dunbar N. International Forum on Transfusion Practices in Haematopoietic Stem-Cell Transplantation: Summary. Vox Sang 2021; 116:609-612. [PMID: 33866564 DOI: 10.1111/vox.13061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/02/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Pilar Solves
- Hematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Nancy Dunbar
- Dartmouth-Hitchcock Medical Center - Pathology, Lebanon, NH, USA
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11
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Solves P, Lozano M, Zhiburt E, Anguita Velasco J, Maria Pérez-Corral A, Monsalvo-Saornil S, Yamazaki S, Okazaki H, Selleng K, Aurich K, Krüger W, Buser A, Holbro A, Infanti L, Stehle G, Pierelli L, Matteocci A, Rigacci L, De Vooght KMK, Kuball JHE, Fielding KL, Westerman DA, Wood EM, Cohn CS, Johnson A, Koh MBC, Qadir D, Cserti-Gazdewich C, Daguindau E, Angelot-Delettre F, Tiberghien P, Wendel-Neto S, Fachini RM, Morton S, Craddock C, Lumley M, Antoniewicz-Papis J, Hałaburda K, Łętowska M, Dunbar N. International Forum on Transfusion Practices in Haematopoietic Stem-Cell Transplantation: Responses. Vox Sang 2021; 116:e25-e43. [PMID: 33866580 DOI: 10.1111/vox.13021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 10/01/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Pilar Solves
- Hematology Department, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | | | - Eugene Zhiburt
- Pirogov National Medical Surgical Center, Moscow, Russia
| | | | | | | | | | | | - Kathleen Selleng
- Institut für Immunologie und Transfusionsmedizin, Greifswald, Germany
| | - Konstanze Aurich
- Institut für Immunologie und Transfusionsmedizin, Greifswald, Germany
| | - William Krüger
- Klinik für Hämatologie und Onkologie, Universitätsmedizin Greifswald, Greifswald, Germany
| | - Andreas Buser
- Regional Blood Transfusion Service, Swiss Red Cross, Basel, Switzerland
| | - Andreas Holbro
- Regional Blood Transfusion Service, Swiss Red Cross, Basel, Switzerland
| | - Laura Infanti
- Regional Blood Transfusion Service, Swiss Red Cross, Basel, Switzerland
| | - Gregor Stehle
- Regional Blood Transfusion Service, Swiss Red Cross, Basel, Switzerland
| | - Luca Pierelli
- Sapienza University, Rome, Italy.,San Camillo Forlanini Hospital, Rome, Italy
| | | | | | | | | | - Katherine L Fielding
- Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Parkville, Vic, Australia
| | | | - Erica M Wood
- Peter MacCallum Cancer Centre, Parkville, Vic, Australia
| | | | | | | | - Dara Qadir
- St George's University Hospital, London, UK
| | | | | | | | | | | | | | | | - Charles Craddock
- University Hospitals Birmingham NHS Foundation Trust, Sutton Coldfield, UK
| | - Matthew Lumley
- University Hospitals Birmingham NHS Foundation Trust, Sutton Coldfield, UK
| | | | | | | | - Nancy Dunbar
- Dartmouth-Hitchcock Medical Center - Pathology, Lebanon, NH, USA
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12
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Iwai S, Okada A, Sasano K, Endo M, Yamazaki S, Wang X, Shimbo T, Tomimatsu T, Kimura T, Tamai K. Controlled induction of immune tolerance by mesenchymal stem cells transferred by maternal microchimerism. Biochem Biophys Res Commun 2021; 539:83-88. [PMID: 33461067 DOI: 10.1016/j.bbrc.2020.12.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 12/11/2020] [Indexed: 12/20/2022]
Abstract
Feto-maternal immune tolerance is established during pregnancy; however, its mechanism and maintenance remain underexplored. Here, we investigated whether mesenchymal stem/stromal cells (MSCs) as non-inherited maternal antigens (NIMAs) transferred by maternal microchimerism could induce immune tolerance. We showed that MSCs had a potential equivalent to hematopoietic stem and progenitor cells (HSPCs) to induce immune tolerance and that MSCs were essential to induce tolerance to MSC-specific antigens. Furthermore, we demonstrated that MSCs as NIMAs transferred by maternal microchimerism could induce robust immune tolerance that can be further enhanced using a drug. Our data shed light on induction of immune tolerance and serve as a foundation to develop new therapies using maternally derived cells for autoimmune or genetic diseases.
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Affiliation(s)
- Sayuri Iwai
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Aiko Okada
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kei Sasano
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Masayuki Endo
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan; StemRIM Institute of Regeneration-Inducing Medicine, Osaka University, Suita, Japan; Department of Children's and Women's Health, Division of Health Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.
| | - Sho Yamazaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Inc, Ibaraki, Osaka, Japan
| | - Xin Wang
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Inc, Ibaraki, Osaka, Japan
| | - Takashi Shimbo
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Institute of Regeneration-Inducing Medicine, Osaka University, Suita, Japan
| | - Takuji Tomimatsu
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Katsuto Tamai
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan.
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13
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Miura A, Shimbo T, Kitayama T, Ouchi Y, Yamazaki S, Nishida M, Takaki E, Yamamoto R, Wijaya E, Tamai K. Contribution of PDGFRα lineage cells in adult mouse hematopoiesis. Biochem Biophys Res Commun 2020; 534:186-192. [PMID: 33309273 DOI: 10.1016/j.bbrc.2020.11.114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 11/27/2020] [Indexed: 12/31/2022]
Abstract
Platelet-derived growth factor receptor alpha (PDGFRα) is a dominant marker of mesodermal mesenchymal cells in mice. Previous studies demonstrated that PDGFRα-positive (PDGFRα+) mesodermal cells develop not only into mesenchymal cells but also into a subset of total hematopoietic cells (HCs) in the limited period during mouse embryogenesis. However, the precise characteristics of the PDGFRα lineage positive (PDGFRα Lin+) HCs in adult mouse hematopoiesis are largely unknown. In this study, we systematically evaluated the characteristics of PDGFRα Lin+ HCs in the bone marrow and peripheral blood using PDGFRα-CRE; ROSAtdTomato mice. Flow cytometry analysis revealed that PDGFRα Lin+ HCs accounted for approximately 20% of total HCs in both the bone marrow and peripheral blood in adult mice. Compositions of myeloid and lymphoid subpopulations among CD45+ mononuclear cells were almost identical in both PDGFRα Lin+ and PDGFRα Lin- cells. Single-cell RNA-sequencing analysis also demonstrated that the transcriptomic signatures of the PDGFRα Lin+ HCs in the peripheral blood largely overlapped with those of the PDGFRα Lin- HCs, suggesting equivalent functions of the PDGFRα Lin+ and PDGFRα Lin- HCs. Although pathophysiological activities of the PDGFRα Lin + HCs were not evaluated, our data clearly demonstrate a significant role of the PDGFRα Lin + HCs in physiological hematopoiesis in adult mice.
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Affiliation(s)
- Asaka Miura
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan
| | - Takashi Shimbo
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Institute of Regeneration-Inducing Medicine, Osaka University, Suita, 565-0871, Japan
| | - Tomomi Kitayama
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Co., Ltd., Ibaraki, Osaka, 567-0085, Japan
| | - Yuya Ouchi
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Co., Ltd., Ibaraki, Osaka, 567-0085, Japan
| | - Sho Yamazaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Co., Ltd., Ibaraki, Osaka, 567-0085, Japan
| | - Mami Nishida
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Co., Ltd., Ibaraki, Osaka, 567-0085, Japan
| | - Eiichi Takaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Co., Ltd., Ibaraki, Osaka, 567-0085, Japan
| | - Ryoma Yamamoto
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Co., Ltd., Ibaraki, Osaka, 567-0085, Japan
| | - Edward Wijaya
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan; StemRIM Co., Ltd., Ibaraki, Osaka, 567-0085, Japan
| | - Katsuto Tamai
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, 565-0871, Japan.
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14
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Michikawa T, Yamazaki S, Shimizu A, Nitta H, Kato K, Nishiwaki Y, Morokuma S. Exposure to Asian dust within a few days of delivery is associated with placental abruption in Japan: a case-crossover study. BJOG 2019; 127:335-342. [PMID: 31654606 DOI: 10.1111/1471-0528.15999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2019] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Asian dust is a natural phenomenon in which dust particles are transported from desert areas in China and Mongolia to East Asia. Short-term exposure to Asian dust has been associated with cardiovascular disease through mechanisms such as systemic inflammation. Because inflammation is a potential trigger of placental abruption, exposure may also lead to abruption. We examined whether exposure to Asian dust was associated with abruption. DESIGN A bi-directional, time-stratified case-crossover design. SETTING AND POPULATION From the Japan Perinatal Registry Network database, we identified 3014 patients who delivered singleton births in hospitals in nine Japanese prefectures from 2009 to 2014 with a diagnosis of placental abruption. METHODS Asian dust levels were measured at Light Detection and Ranging monitoring stations, and these measurements were used to define the Asian dust days. As there was no information on the onset day of abruption, we assumed this day was the day before delivery (lag1). MAIN OUTCOME MEASURES Placental abruption. RESULTS During the study period, the Asian dust days ranged from 15 to 71 days, depending on the prefecture. The adjusted odds ratio of placental abruption associated with exposure to Asian dust was 1.4 (95% confidence interval = 1.0, 2.0) for cumulative lags of 1-2 days. Even after adjustment for co-pollutant exposures, this association did not change substantially. CONCLUSIONS In this Japanese multi-area study, exposure to Asian dust was associated with an increased risk of placental abruption. TWEETABLE ABSTRACT Exposure to environmental factors such as Asian dust may be a trigger of placental abruption.
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Affiliation(s)
- T Michikawa
- Department of Environmental and Occupational Health, School of Medicine, Toho University, Tokyo, Japan.,Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Japan
| | - S Yamazaki
- Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Japan
| | - A Shimizu
- Centre for Regional Environmental Research, National Institute for Environmental Studies, Tsukuba, Japan
| | - H Nitta
- Centre for Health and Environmental Risk Research, National Institute for Environmental Studies, Tsukuba, Japan
| | - K Kato
- Department of Obstetrics and Gynaecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Nishiwaki
- Department of Environmental and Occupational Health, School of Medicine, Toho University, Tokyo, Japan
| | - S Morokuma
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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15
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Terada R, Ikeda T, Mori Y, Yamazaki S, Kashiwabara K, Yamauchi H, Ono M, Yamada Y, Okazaki H. Comparison of two point of care whole blood coagulation analysis devices and conventional coagulation tests as a predicting tool of perioperative bleeding in adult cardiac surgery-a pilot prospective observational study in Japan. Transfusion 2019; 59:3525-3535. [PMID: 31614002 DOI: 10.1111/trf.15523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 06/10/2019] [Accepted: 08/13/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND It is widely accepted that Point-of Care Test (PoCT) devices are useful in the detection of coagulopathies in situations of massive bleeding such as major cardiac surgery. These devices contribute to the reduction of blood transfusion. However, their implementation remains limited in Japan because of their cost and lack of health insurance support. STUDY DESIGN AND METHODS Conventional coagulation tests and thromboelastography (TEG)/Sonoclot values were measured in 50 consecutive cardiac surgery cases. Clinical background information such as operative procedures was obtained from electronic medical records, and the theoretical perioperative total blood loss was calculated by measuring the hemoglobin content and total red blood cell transfusion volume. The correlation between perioperative total blood loss and the measured laboratory values or clinical parameters was evaluated by a multivariate linear regression analysis. The risk factors of the total amount of platelet transfusion and postoperative drain bleeding volume were similarly evaluated. RESULTS No significant association between the estimated perioperative total blood loss (eTBL) and the laboratory measurements including conventional coagulation tests, TEG and Sonoclot was observed. On the other hand, postoperative drain bleeding volume was significantly associated with postoperative Sonoclot CR (p = 0.039) as well as preoperative use of oral anticoagulants and cell saver treated blood volume. Platelet transfusion amount was significantly associated with post-CBP PF and time to peak value of Sonoclot (p = 0.014 and 0.001, respectively). CONCLUSION Sonoclot measurements may be useful to estimate the risks of postoperative bleeding and platelet transfusion in cardiac surgeries in Japan.
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Affiliation(s)
- Rui Terada
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
| | - Toshiyuki Ikeda
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshiteru Mori
- Department of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Sho Yamazaki
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
| | - Kosuke Kashiwabara
- Department of Biostatistics Division, Clinical Research Support Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Haruo Yamauchi
- Department of Cardiac Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Minoru Ono
- Department of Cardiac Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshitsugu Yamada
- Department of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Hitoshi Okazaki
- Department of Blood Transfusion, The University of Tokyo Hospital, Tokyo, Japan
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16
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Kadowaki S, Yamazaki S, Kotani Y, Tsuji T, Sakoda N, Kobayashi Y, Horio N, Goto T, Muraoka G, Ozawa S, Suezawa T, Kuroko Y, Tateishi A, Shimizu S, Kasahara S. P1833The c-fos mRNA expression reveals persistent myocardial stretch in the right ventricle during asphyxiated cardiac arrest. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Donation after circulatory death (DCD) heart transplantation has been debated over the past decades because of the shortage of donor. The right ventricular dysfunction is one of the remaining problems for clinical implication of DCD heart transplantation. DCD hearts suffering from the volume overload have a potential to aggravate the right ventricular dysfunction after heart transplantation. The c-fos mRNA is one of the “immediate” response genes to mechanical stresses, such as myocardial cell stretch, without neural and humoral factors. In this study, we assessed myocardial stretch during asphyxiated cardiac arrest using c-fos mRNA expression.
Purpose
The purpose of this study is to reveal the impact of right ventricular volume overload during asphyxiated cardiac arrest.
Methods
Male Wistar rats (8 weeks of age, n=18) were anesthetized with paralyzed ventilation. The trachea was dissected and ligated to initiate asphyxiation. Hearts were harvested at 3 time points: 0, 15 and 30 minutes after termination of the ventilation. Free walls of right and left ventricle were sectioned and immersed in RNA stabilization solution as soon as possible. Total RNA was extracted from these tissues using a guanidine thiocyanate-phenol-chloroform method and cDNA was synthesized using a reverse transcriptase. Next, we measured the quantified expression level by using the droplet digital PCR method with a probe and primers for c-fos gene. Expression of c-fos level was divided by extracted TATA binding protein (TBP) level as a control marker, the ratio of c-fos and TBP was used in analysis.
Results
In the left ventricle, the expression of c-fos rapidly increased by 15 minutes (0.81±0.24 (c-fos/TBP), p<0.05 by one-way ANOVA followed by the Dunnett's test) compared to at 0 minutes (0.21±0.06), but the expression level recovered to the baseline level at 30 minutes after termination of the ventilation (0.19±0.03). On the other hand, in the right ventricle, the c-fos expression was gradually elevated and peaked at 30 minutes (0.88±0.20, p<0.05 by the Dunnett's test) compared to at 0 minutes (0.22±0.05).
Conclusion
These results suggest that the volume overload to the right ventricle during asphyxiated cardiac arrest prolongs compared to that to the left ventricle, which may cause the right ventricular dysfunction after DCD heart transplantation.
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Affiliation(s)
| | - S Yamazaki
- National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Y Kotani
- Okayama University, Okayama, Japan
| | - T Tsuji
- Okayama University, Okayama, Japan
| | - N Sakoda
- Okayama University, Okayama, Japan
| | | | - N Horio
- Okayama University, Okayama, Japan
| | - T Goto
- Okayama University, Okayama, Japan
| | | | - S Ozawa
- Okayama University, Okayama, Japan
| | | | - Y Kuroko
- Okayama University, Okayama, Japan
| | | | - S Shimizu
- National Cerebral and Cardiovascular Center, Osaka, Japan
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17
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Numata S, Keiichi I, Yamazaki S, Kanda K, Yaku H. P1826Computational fluid dynamic analysis of acute aortic dissection. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Mechanism of acute aortic dissection still is not well understood. It is very difficult to predict where, when, and how acute aortic dissection occurs. This time we focused on blood flow velocity (FV), wall shear stress (WSS), and oscillatory shear index (OSI) which is three dimensional fluctuations of WSS inside ascending aorta. It is well recognized that a higher or lower WSS may cause intimal dysfunction, which could result in the progression of atherosclerosis. Furthermore, because of the non-slip boundary mechanical equilibrium of forces, WSS will separate the inner and outer layers of the aorta. This sheer force could stress the medial tissue and result in degeneration. OSI has been reported as important hemodynamic parameter that is highly associated with the progression of atherosclerosis by inducing radical oxygen production of the endothelial cells. Therefore, OSI may be more closely associated with the degeneration of the media in comparison with WSS. This time FV, WSS, and OSI was evaluated using computational fluid dynamics to identify the location of acute aortic dissection entry.
Method
Using computed tomography data of three patients (Case A, B, C) who had acute aortic dissection, each three pre-dissection aorta model was made. Computer simulation images of four dimensional pulsatile blood flow was made and pulsatile cardiac flow from one cardiac cycle was simulated. A three-dimensional movie was made to evaluate FV, WSS, and OSI. One normal size aorta was evaluated as a control.
Results
In control, blood flow inside ascending aorta was laminar, on the contrary, spiral flow was observed in three dissection cases. FV was slightly higher in dissection case (control: 0.56m/s, A: 0.77m/s, B: 1.05m/s, C: 0.35m/s). Maximum WSS in ascending aorta was 3.24Pa in control. In dissection cases, there was patchy high (A: 18.6Pa, B: 25.6Pa, C: 4.0Pa,) WSS lesion in ascending aorta. In case A and B, these patchy high lesions are close to the entry site. In all three dissection case, OSI was high around entry site.
Figure 1
Conclusion
According to our computer simulation, patchy high WSS and high OSI lesion is related with acute dissection entry site at the ascending aorta.
Acknowledgement/Funding
None
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Affiliation(s)
- S Numata
- Kyoto Prefectural University of Medicine, Cardiovascular surgery, Kyoto, Japan
| | - I Keiichi
- Kyoto Prefectural University of Medicine, Cardiovascular surgery, Kyoto, Japan
| | - S Yamazaki
- Kyoto Prefectural University of Medicine, Cardiovascular surgery, Kyoto, Japan
| | - K Kanda
- Kyoto Prefectural University of Medicine, Cardiovascular surgery, Kyoto, Japan
| | - H Yaku
- Kyoto Prefectural University of Medicine, Cardiovascular surgery, Kyoto, Japan
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18
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Sekiguchi A, Fujiwara C, Yamazaki S, Inoue Y, Uchiyama A, Akai R, Iwawaki T, Ishikawa O, Motegi S. 015 Inhibitory effect of kaempferol on skin fibrosis in systemic sclerosis by the suppression of oxidative stress. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Shimbo T, Yamazaki S, Kitayama T, Ouchi Y, Yamamoto R, Takaki E, Bruckner-Tuderman L, Uitto J, Kaneda Y, Tamai K. 579 Single cell transcriptome and epigenome analyses in a murine model of dystrophic epidermolysis bullosa. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Yamazaki S, Odanaka M, Shime H, Imai M, Hemmi H, Kaisho T, Ohkura N, Sakaguchi S, Morita A. 051 Dermal dendritic cells present neo-self antigens induced by ultraviolet B exposure to expand Foxp3+ regulatory T cells. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Okada A, Shimbo T, Endo M, Iwai S, Kitayama T, Ouchi Y, Yamamoto R, Takaki E, Yamazaki S, Nishida M, Wang X, Kikuchi Y, Tomimatsu T, Kaneda Y, Kimura T, Tamai K. Transcriptionally distinct mesenchymal stem/stromal cells circulate in fetus. Biochem Biophys Res Commun 2019; 512:326-330. [PMID: 30890337 DOI: 10.1016/j.bbrc.2019.03.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 10/27/2022]
Abstract
Umbilical cord blood contains mesenchymal stem/stromal cells (MSCs) in addition to hematopoietic stem cells, serving as an attractive tool for regenerative medicine. As umbilical cord blood originates from fetus, abundant MSCs are expected to circulate in fetus. However, the properties of circulating MSCs in fetus have not been fully examined. In the present study, we aimed to analyze circulating MSCs, marked by the expression of platelet-derived growth factor receptor α (PDGFRα), during fetal development. Using PDGFRα GFP knock-in mice, we quantified the number of circulating PDGFRα positive MSCs during development. We further performed whole transcriptome analysis of circulating MSCs at single cell levels. We found that abundant PDGFRα positive cells circulate in embryo and diminish immediately after birth. In addition, single cell RNA-sequencing revealed transcriptional heterogeneity of MSCs in fetal circulation. These data lay a foundation to analyze the function of circulating MSCs during development.
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Affiliation(s)
- Aiko Okada
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takashi Shimbo
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Masayuki Endo
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - Sayuri Iwai
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tomomi Kitayama
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Co., Ltd., Ibaraki, Japan
| | - Yuya Ouchi
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Co., Ltd., Ibaraki, Japan
| | - Ryoma Yamamoto
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Co., Ltd., Ibaraki, Japan
| | - Eiichi Takaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Co., Ltd., Ibaraki, Japan
| | - Sho Yamazaki
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Co., Ltd., Ibaraki, Japan
| | - Mami Nishida
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Co., Ltd., Ibaraki, Japan
| | - Xin Wang
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan; StemRIM Co., Ltd., Ibaraki, Japan
| | - Yasushi Kikuchi
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Takuji Tomimatsu
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yasufumi Kaneda
- Division of Gene Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Tadashi Kimura
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Katsuto Tamai
- Department of Stem Cell Therapy Science, Graduate School of Medicine, Osaka University, Suita, Japan.
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22
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Taoka K, Arai S, Kataoka K, Hosoi M, Miyauchi M, Yamazaki S, Honda A, Aixinjueluo W, Kobayashi T, Kumano K, Yoshimi A, Otsu M, Niwa A, Nakahata T, Nakauchi H, Kurokawa M. Using patient-derived iPSCs to develop humanized mouse models for chronic myelomonocytic leukemia and therapeutic drug identification, including liposomal clodronate. Sci Rep 2018; 8:15855. [PMID: 30367142 PMCID: PMC6203784 DOI: 10.1038/s41598-018-34193-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/28/2018] [Indexed: 01/08/2023] Open
Abstract
Chronic myelomonocytic leukemia (CMML) is an entity of myelodysplastic syndrome/myeloproliferative neoplasm. Although CMML can be cured with allogeneic stem cell transplantation, its prognosis is generally very poor due to the limited efficacy of chemotherapy and to the patient's age, which is usually not eligible for transplantation. Comprehensive analysis of CMML pathophysiology and the development of therapeutic agents have been limited partly due to the lack of cell lines in CMML and the limited developments of mouse models. After successfully establishing patient's derived disease-specific induced pluripotent stem cells (iPSCs) derived from a patient with CMML, we utilized these CMML-iPSCs to achieve hematopoietic re-differentiation in vitro, created a humanized CMML mouse model via teratomas, and developed a drug-testing system. The clinical characteristics of CMML were recapitulated following hematopoietic re-differentiation in vitro and a humanized CMML mouse model in vivo. The drug-testing system using CMML-iPSCs identified a MEK inhibitor, a Ras inhibitor, and liposomal clodronate as potential drugs for treating CMML. Clodronate is a drug commonly used as a bisphosphonate for osteoporosis. In this study, the liposomalization of clodronate enhanced its effectiveness in these assays, suggesting that this variation of clodronate may be adopted as a repositioned drug for CMML therapy.
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Affiliation(s)
- Kazuki Taoka
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Shunya Arai
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Keisuke Kataoka
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan.,Department of Pathology and Tumor Biology, Kyoto University, Kyoto University, 53 Kawahara-cho, Yoshidakonoecho, Sakyo-ku, Kyoto, 606-8315, Japan
| | - Masataka Hosoi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Masashi Miyauchi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Sho Yamazaki
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Akira Honda
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Wei Aixinjueluo
- Department of Ophthalmology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takashi Kobayashi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Keiki Kumano
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Akihide Yoshimi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan
| | - Makoto Otsu
- Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, 4-6-1 Shiroganedai, Minatoku, Tokyo, 102-8639, Japan
| | - Akira Niwa
- Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Tatsutoshi Nakahata
- Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Hiromitsu Nakauchi
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, 4-6-1 Shiroganedai, Minatoku, Tokyo, 102-8639, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan. .,CREST, Japan Science and Technology Agency (JST), 5-7 Chiyoda-ku, Tokyo, 102-0076, Japan.
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23
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Goda T, Kinoshita I, Oizumi S, Nakano K, Harada T, Kawai Y, Sakakibara-Konishi J, Yokouchi H, Morikawa N, Yamada N, Yamazaki S, Sugawara S, Asahina H, Amano T, Hatanaka Y, Matsuno Y, Nishihara H, Isobe H, Nishimura M, Dosaka-Akita H. A prospective observational study of HER2 alterations in NSCLCs: HOT1303-A. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Shimbo T, Sasaki E, Kitayama T, Yamazaki S, Nishida M, Ouchi Y, Yamamoto R, Bruckner-Tuderman L, Uitto J, Kikuchi Y, Katayama I, Kaneda Y, Tamai K. 843 Systemic delivery of HMGB1 promotes tissue regeneration by activating PDGFRα cells in a mouse model of epidermolysis bullosa. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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25
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Fujiwara C, Sekiguchi A, Yamazaki S, Ishikawa O, Motegi S. 845 Inhibitory regulation of MFG-E8 on fibrosis in systemic sclerosis via modulating TGF-β signaling. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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26
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Miyauchi M, Koya J, Arai S, Yamazaki S, Honda A, Kataoka K, Yoshimi A, Taoka K, Kumano K, Kurokawa M. ADAM8 Is an Antigen of Tyrosine Kinase Inhibitor-Resistant Chronic Myeloid Leukemia Cells Identified by Patient-Derived Induced Pluripotent Stem Cells. Stem Cell Reports 2018; 10:1115-1130. [PMID: 29429960 PMCID: PMC5919294 DOI: 10.1016/j.stemcr.2018.01.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 01/12/2018] [Accepted: 01/15/2018] [Indexed: 11/22/2022] Open
Abstract
Properties of cancer stem cells involved in drug resistance and relapse have significant effects on clinical outcome. Although tyrosine kinase inhibitors (TKIs) have dramatically improved survival of patients with chronic myeloid leukemia (CML), TKIs have not fully cured CML due to TKI-resistant CML stem cells. Moreover, relapse after discontinuation of TKIs has not been predicted in CML patients with the best TKI response. In our study, a model of CML stem cells derived from CML induced pluripotent stem cells identified ADAM8 as an antigen of TKI-resistant CML cells. The inhibition of expression or metalloproteinase activity of ADAM8 restored TKI sensitivity in primary samples. In addition, residual CML cells in patients with optimal TKI response were concentrated in the ADAM8+ population. Our study demonstrates that ADAM8 is a marker of residual CML cells even in patients with optimal TKI response and would be a predictor of relapse and a therapeutic target of TKI-resistant CML cells. We established a model of CML stem cells derived from CML-iPSCs ADAM8 is identified as an antigen of TKI-resistant CML cells The inhibition of ADAM8 restored TKI sensitivity in primary samples ADAM8 is a marker of residual CML cells in patients with optimal TKI response
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Affiliation(s)
- Masashi Miyauchi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Junji Koya
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Shunya Arai
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Sho Yamazaki
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Akira Honda
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Keisuke Kataoka
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Akihide Yoshimi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Kazuki Taoka
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Keiki Kumano
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8655, Japan.
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27
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Yamazaki S, Satomura Y. Standard Method for Describing an Electronic Patient Record Template: Application of XML to Share Domain Knowledge. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Abstract:A Template Definition Language (TDL) was developed to share knowledge of how to construct an electronic patient record (EPR) template. Based on the extensible markup language XML, TDL has been designed to be independent of EPR platforms or databases. Our research of TDL was conducted through evaluation of the description of various templates in the currently available EPRs and through comparisons with some electronic clinical guidelines. We conclude that TDL is sufficient for the objective but still needs improvement of the algorithm for describing dynamic changes.
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28
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Kamata M, Yamazaki S, Tanise Y, Yamada Y, Nakamura T. Morphological change in peristaltic crawling motion of a narrow pipe inspection robot inspired by earthworm’s locomotion. Adv Robot 2018. [DOI: 10.1080/01691864.2017.1417158] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M. Kamata
- Precision Mechanics, Chuo University, Tokyo, Japan
| | - S. Yamazaki
- Precision Mechanics, Chuo University, Tokyo, Japan
| | - Y. Tanise
- Precision Mechanics, Chuo University, Tokyo, Japan
| | - Y. Yamada
- Precision Mechanics, Chuo University, Tokyo, Japan
| | - T. Nakamura
- Precision Mechanics, Chuo University, Tokyo, Japan
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29
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Suzuki Y, Sakuma H, Yamazaki S, Ihara J. Lymphatic tract reconstruction using a pedicled deep inferior epigastric perforator flap. Lymphology 2018; 51:79-84. [PMID: 30253459] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We encountered a case in which we used a pedicled deep inferior epigastric perforator(DIEP) flap to repair a lymphatic leak. This case shows that such repairs can lead to the reconstruction of the lymphatic tract and prevent lymphatic leak recurrences. The present report describes a 45-year-old woman with ovarian cancer who underwent hysterectomy, bilateral salpingo-oophorectomy, pelvic lymphadenectomy, para-aortic lymphadenectomy, and omentectomy. She presented with a pelvic lymphocele with lower-extremity swelling. Lymphovenous anastomosis was performed and swelling of the lower extremity abated. However, because of the occurrence of deep vein thrombosis and the recurrence of swelling, we used a 6-cm-long and 14-cm-wideDIEP flap after lymphocele fenestration. The flap was de-epithelialized and fixed into the peritoneum, with the cutis side facing the leakage point. The postoperative course was uneventful, and no recurrence was observed. We obtained good results by providing abundant blood flow to abundant lymph tissue at the fenestration point. It is known that lymphatic vessels can spontaneously connect with each other. We hypothesize that the DIEP flap improved the edema in this case by regenerating the lymphatic network and improving flow into the bridging flap.
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Affiliation(s)
- Y Suzuki
- Department of Plastic and Reconstructive Surgery, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - H Sakuma
- Department of Plastic and Reconstructive Surgery, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - S Yamazaki
- Department of Plastic and Reconstructive Surgery, University of the Ryukyus, Okinawa, Japan
| | - J Ihara
- Department of Plastic and Reconstructive Surgery, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
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Torii K, Kubo R, Furuhashi T, Muramatsu S, Sagawa Y, Saito C, Yamazaki S, Morita A. 638 Photochemotherapy limits Treg plasticity and restores Treg function in psoriasis patients. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Mori S, Miura H, Yamazaki S, Suzuki T, Shimizu A, Seki Y, Kunugi T, Nishio S, Fujisawa N, Hishinuma A, Kikuchi M. Preliminary Design of a Solid Particulate Cooled Blanket for the Steady State Tokamak Reactor (SSTR). ACTA ACUST UNITED AC 2017. [DOI: 10.13182/fst92-a29973] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Mori
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - H. Miura
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - S. Yamazaki
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - T. Suzuki
- Kawasaki Heavy Industries, Ltd., 2-4-25 Minami-suna, Koto-ku,Tokyo, 136, Japan (3)3615-5147
| | - A. Shimizu
- Kyushu University, 6-1 Kasuga-koen, Kasuga city, Fukuoka-ken, 816, Japan (92)573-9611
| | - Y. Seki
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - T. Kunugi
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - S. Nishio
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - N. Fujisawa
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - A. Hishinuma
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
| | - M. Kikuchi
- Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki-ken, 311-01, Japan (292)70-7520
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Shimizu S, Yamazaki S, Akiyama T, Kawada T, Pearson J, Shishido T, Sugimachi M. P5159Cardiac microdialysis enables us to monitor myocardial interstitial microRNA levels in an in-vivo beating rat heart during ischaemia/reperfusion. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5159] [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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33
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Yamazaki S, Yasumura S. DOES COHABITATING FAMILIES’ INVOLVEMENT AFFECT DEPRESSION AMONG COMMUNITY-DWELLING OLDER ADULTS? Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - S. Yasumura
- Fukushima Medical University, Fukushima, Japan
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34
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Ura C, Okamura T, Yamazaki S, Ishiguro T, Miyazaki M, Ibe M, Kubota A, Kawamuro Y. RICE-FARMING CARE FOR PEOPLE WITH DEMENTIA; A NOVEL WAY OF SOCIAL PARTICIPATION FOR THE ELDERLY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- C. Ura
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan,
| | - T. Okamura
- Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan,
- University of Tokyo, Tokyo, Japan,
| | | | | | | | - M. Ibe
- Kawamuro Memorial Hospital, Niigata, Japan
| | - A. Kubota
- Kawamuro Memorial Hospital, Niigata, Japan
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35
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Shimbo T, Yamazaki S, Wang X, Kikuchi Y, Bruckner-Tuderman L, Kaneda Y, Tamai K. 906 Systemic HMGB1 administration ameliorates cutaneous and non-cutaneous manifestations in a dystrophic epidermolysis bullosa model mouse. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Sakaguchi T, Yamazaki S, Hashimoto T. Enhancement of CO2 permeability of poly(vinyl ether)s having oxyethylene chains by the sequence control of crosslinking sites. RSC Adv 2017. [DOI: 10.1039/c7ra01353a] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Triblock copolymers exhibited high gas permeability than the random copolymers. The triblock copolymers have the crosslinking only at the end segments, which makes the polymer chains more flexible than the random copolymers.
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Affiliation(s)
- T. Sakaguchi
- Department of Materials Science and Engineering
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - S. Yamazaki
- Department of Materials Science and Engineering
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
| | - T. Hashimoto
- Department of Materials Science and Engineering
- Graduate School of Engineering
- University of Fukui
- Fukui 910-8507
- Japan
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Ichida A, Hasegawa K, Takayama T, Kudo H, Sakamoto Y, Yamazaki S, Midorikawa Y, Higaki T, Matsuyama Y, Kokudo N. Randomized clinical trial comparing two vessel-sealing devices with crush clamping during liver transection. Br J Surg 2016; 103:1795-1803. [DOI: 10.1002/bjs.10297] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 06/24/2016] [Accepted: 07/13/2016] [Indexed: 12/22/2022]
Abstract
Abstract
Background
Previous RCTs have failed to demonstrate the usefulness of combining energy devices with the conventional clamp crushing method to reduce blood loss during liver transection. Here, the combination of an ultrasonically activated device (UAD) and a bipolar vessel-sealing device (BVSD) with crush clamping was investigated.
Methods
Patients scheduled to undergo hepatectomy at the University of Tokyo Hospital or Nihon University Itabashi Hospital were eligible for this parallel-group, single-blinded randomized study. Patients were assigned to a control group (no energy device used), an UAD group or a BVSD group. The primary endpoint was the volume of blood loss during liver transection. Outcomes of the control group and the combined energy device groups (UAD plus BVSD) were first compared. Pairwise comparisons among the three groups were made for outcomes for which the combined energy device group was superior to the control group.
Results
A total of 380 patients were enrolled between July 2012 and May 2014; 116 patients in the control group, 122 in the UAD group and 123 in the BVSD group were included in the final analysis. Median blood loss during liver transection was lower in the combined energy device group (245 patients) than in the control group (116 patients): median 190 (range 0–3575) versus 230 (range 3–1570) ml (P = 0·048). Pairwise comparison revealed that blood loss was lower in the BVSD group than in the control group (P = 0·043).
Conclusion
The use of energy devices combined with crush clamping reduced blood loss during liver transection. Registration number: C000008372 (www.umin.ac.jp/ctr/index.htm).
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Affiliation(s)
- A Ichida
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - K Hasegawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - T Takayama
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - H Kudo
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - Y Sakamoto
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
| | - S Yamazaki
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Y Midorikawa
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - T Higaki
- Department of Digestive Surgery, Nihon University School of Medicine, Tokyo, Japan
| | - Y Matsuyama
- Department of Biostatistics, School of Public Health, University of Tokyo, Tokyo, Japan
| | - N Kokudo
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, Tokyo, Japan
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38
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Sakamoto S, Okeyo KO, Yamazaki S, Kurosawa O, Oana H, Kotera H, Washizu M. Adhesion patterning by a novel air-lock technique enables localization and in-situ real-time imaging of reprogramming events in one-to-one electrofused hybrids. Biomicrofluidics 2016; 10:054122. [PMID: 27822330 PMCID: PMC5085977 DOI: 10.1063/1.4965422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 09/01/2016] [Indexed: 05/07/2023]
Abstract
Although fusion of somatic cells with embryonic stem (ES) cells has been shown to induce reprogramming, single-cell level details of the transitory phenotypic changes that occur during fusion-based reprogramming are still lacking. Our group previously reported on the technique of one-to-one electrofusion via micro-slits in a microfluidic platform. In this study, we focused on developing a novel air-lock patterning technique for creating localized adhesion zones around the micro-slits for cell localization and real-time imaging of post fusion events with a single-cell resolution. Mouse embryonic fibroblasts (MEF) were fused individually with mouse ES cells using a polydimethylsiloxane (PDMS) fusion chip consisting of two feeder channels with a separating wall containing an array of micro-slits (slit width ∼3 μm) at a regular spacing. ES cells and MEFs were introduced separately into the channels, juxtaposed on the micro-slits by dielectrophoresis and fused one-to-one by a pulse voltage. To localize fused cells for on-chip culture and time-lapse microscopy, we implemented a two-step approach of air-lock bovine serum albumin patterning and Matrigel coating to create localized adhesion areas around the micro-slits. As a result of time-lapse imaging, we could determine that cell division occurs within 24 h after fusion, much earlier than the 2-3 days reported by earlier studies. Remarkably, Oct4-GFP (Green Fluorescent Protein) was confirmed after 25 h of fusion and thereafter stably expressed by daughter cells of fused cells. Thus, integrated into our high-yield electrofusion platform, the technique of air-lock assisted adhesion patterning enables a single-cell level tracking of fused cells to highlight cell-level dynamics during fusion-based reprogramming.
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Affiliation(s)
- S Sakamoto
- Department of Bioengineering, School of Engineering, The University of Tokyo , Tokyo 113-3656, Japan
| | - K O Okeyo
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo , Tokyo 113-3656, Japan
| | - S Yamazaki
- Center for Stem Cell Therapy, The Institute of Medical Science, The University of Tokyo , Tokyo 113-3656, Japan
| | - O Kurosawa
- Department of Bioengineering, School of Engineering, The University of Tokyo , Tokyo 113-3656, Japan
| | - H Oana
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo , Tokyo 113-3656, Japan
| | - H Kotera
- Department of Microengineering, School of Engineering, Kyoto University , Kyoto 606-8501, Japan
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Saitoh M, Kobayashi K, Ohmori I, Tanaka Y, Tanaka K, Inoue T, Horino A, Ohmura K, Kumakura A, Takei Y, Hirabayashi S, Kajimoto M, Uchida T, Yamazaki S, Shiihara T, Kumagai T, Kasai M, Terashima H, Kubota M, Mizuguchi M. Cytokine-related and sodium channel polymorphism as candidate predisposing factors for childhood encephalopathy FIRES/AERRPS. J Neurol Sci 2016; 368:272-6. [PMID: 27538648 DOI: 10.1016/j.jns.2016.07.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 11/15/2022]
Abstract
Febrile infection-related epilepsy syndrome (FIRES), or acute encephalitis with refractory, repetitive partial seizures (AERRPS), is an epileptic encephalopathy beginning with fever-mediated seizures. The etiology remains unclear. To elucidate the genetic background of FIRES/AERRPS (hereafter FIRES), we recruited 19 Japanese patients, genotyped polymorphisms of the IL1B, IL6, IL10, TNFA, IL1RN, SCN1A and SCN2A genes, and compared their frequency between the patients and controls. For IL1RN, the frequency of a variable number of tandem repeat (VNTR) allele, RN2, was significantly higher in the patients than in controls (p=0.0067), and A allele at rs4251981 in 5' upstream of IL1RN with borderline significance (p=0.015). Haplotype containing RN2 was associated with an increased risk of FIRES (OR 3.88, 95%CI 1.40-10.8, p=0.0057). For SCN1A, no polymorphisms showed a significant association, whereas a missense mutation, R1575C, was found in two patients. For SCN2A, the minor allele frequency of G allele at rs1864885 was higher in patients with borderline significance (p=0.011). We demonstrated the association of IL1RN haplotype containing RN2 with FIRES, and showed a possible association of IL1RN rs4251981 G>A and SCN2A rs1864885 A>G, in Japanese patients. These preliminary findings suggest the involvement of multiple genetic factors in FIRES, which needs to be confirmed by future studies in a larger number of FIRES cases.
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Affiliation(s)
- M Saitoh
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Japan.
| | - K Kobayashi
- Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - I Ohmori
- Department of Special Needs Education, Graduate School of Education, Okayama University, Japan
| | - Y Tanaka
- Department of Pediatrics, Ohta Nishinouchi General Hospital, Japan
| | - K Tanaka
- Department of Pediatrics, Ohta Nishinouchi General Hospital, Japan
| | - T Inoue
- Department of Pediatrics, Child Medical Center, Osaka City General Hospital, Japan
| | - A Horino
- Department of Pediatrics, Child Medical Center, Osaka City General Hospital, Japan
| | - K Ohmura
- Department of Pediatrics, Kishiwada City Hospital, Japan
| | - A Kumakura
- Department of Pediatrics, Kitano Hospital, Japan
| | - Y Takei
- Division of Neurology, Nagano Childrens' Hospital, Japan
| | - S Hirabayashi
- Division of Neurology, Nagano Childrens' Hospital, Japan
| | - M Kajimoto
- Department of Pediatrics, Yamaguchi University, Japan
| | - T Uchida
- Department of Pediatrics, Sendai City, Hospital, Japan
| | - S Yamazaki
- Department of Pediatrics, Niigata City Hospital, Japan
| | - T Shiihara
- Department of Neurology, Gunma Children's Medical Center, Japan
| | - T Kumagai
- Division of Neurology, National Center for Child Health and Development, Japan
| | - M Kasai
- Division of Neurology, National Center for Child Health and Development, Japan
| | - H Terashima
- Division of Neurology, National Center for Child Health and Development, Japan
| | - M Kubota
- Division of Neurology, National Center for Child Health and Development, Japan
| | - M Mizuguchi
- Department of Developmental Medical Sciences, Graduate School of Medicine, The University of Tokyo, Japan
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Nakatani T, Sase K, Oshiyama H, Akiyama M, Horie M, Nawata K, Nishinaka T, Tanoue Y, Toda K, Tozawa M, Yanase M, Yamazaki S, Ishida M, Hiramatsu A, Kitamura S. Report of Japanese Registry for Mechanically Assisted Circulatory Support (J-MACS) - Non-Pulsatile Implantable LVAS vs. Extracorporeal LVAD as Bridge to Transplantation. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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41
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Ohnishi T, Uchida T, Yamazaki S, Kimura K. Preparation of poly(ester-imide) ribbons comprised of helical and non-helical blocks by copolymerization. RSC Adv 2016. [DOI: 10.1039/c6ra22494f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ribbon-like crystals of poly[4-(5-oxy-1,3-dioxoisoindoline-2-yl)benzoyl] comprised of helical and non-helical blocks were prepared by stepwise addition ofp-acetoxybenzoic acid during the homo-polymerization ofN-(4-carboxyphenyl)-4-acetoxyphthalimide in aromatic solvent.
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Affiliation(s)
- T. Ohnishi
- Graduate School of Environmental and Life Science
- Okayama University
- Okayama
- Japan
| | - T. Uchida
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama
- Japan
| | - S. Yamazaki
- Graduate School of Environmental and Life Science
- Okayama University
- Okayama
- Japan
| | - K. Kimura
- Graduate School of Environmental and Life Science
- Okayama University
- Okayama
- Japan
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42
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Higo T, Kobayashi T, Yamazaki S, Ando S, Gonoi W, Ishida M, Okuma H, Nakamura F, Ushiku T, Ohtomo K, Fukayama M, Kurokawa M. Cerebral embolism through hematogenous dissemination of pulmonary mucormycosis complicating relapsed leukemia. Int J Clin Exp Pathol 2015; 8:13639-13642. [PMID: 26722589 PMCID: PMC4680534] [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] [Received: 08/12/2015] [Accepted: 09/22/2015] [Indexed: 06/05/2023]
Abstract
Invasive mucormycosis in patients with hematological diseases mostly occurs in the lungs. Invasive mucormycosis of other anatomical sites is relatively infrequent and its pathogenesis has not so far been well elucidated. Here, we describe an autopsy case of pulmonary invasive mucormycosis complicated by cerebral embolism with infarct. A 77-year-old Japanese woman with relapsed acute myeloid leukemia complained of left visual disturbance and weakness of the lower limbs. The diagnosis of leukemic infiltration to the central nervous system was made. Repeated intrathecal injection of methotrexate plus cytarabine resulted in partial amelioration of the neurologic symptoms. However, the patient then developed fever, dyspnea, and subsequent right hemiparesis. A computed tomography (CT) scan showed a consolidative shadow with halo sign in the left lung field, which was compatible with either invasive pulmonary aspergillosis or mucormycosis. These findings accounted for fever and dyspnea, but not hemiparesis. Despite antifungal therapy, the patient succumbed to death after two weeks. Autopsy revealed pulmonary invasive mucormycosis with a fungal ball in the lumina of the adjacent ascending aorta. Intriguingly, autopsy and postmortem CT scan identified left cerebral infarct due to mucormycosis, which accounted for the right hemiparesis. It is likely that the fungal ball caused the cerebral embolism through hematogenous dissemination. We should suspect hematogenous dissemination when we see a patient with pulmonary invasive mucormycosis developing neurologic symptoms.
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Affiliation(s)
- Takashi Higo
- Department of Hematology and Oncology, Graduate School of Medicine, The University of TokyoJapan
| | - Takashi Kobayashi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of TokyoJapan
| | - Sho Yamazaki
- Department of Hematology and Oncology, Graduate School of Medicine, The University of TokyoJapan
| | - Sumiyo Ando
- Department of Pathology, Graduate School of Medicine, The University of TokyoJapan
| | - Wataru Gonoi
- Department of Radiology, Graduate School of Medicine, The University of TokyoJapan
| | - Masanori Ishida
- Department of Radiology, Graduate School of Medicine, The University of TokyoJapan
| | | | - Fumihiko Nakamura
- Department of Hematology and Oncology, Graduate School of Medicine, The University of TokyoJapan
| | - Tetsuo Ushiku
- Department of Pathology, Graduate School of Medicine, The University of TokyoJapan
| | - Kuni Ohtomo
- Department of Radiology, Graduate School of Medicine, The University of TokyoJapan
| | - Masashi Fukayama
- Department of Pathology, Graduate School of Medicine, The University of TokyoJapan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of TokyoJapan
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Numata S, Tsutsumi Y, Monta O, Yamazaki S, Seo H, Yoshida S, Samura T, Ohashi H. Acute type A aortic dissection repair with mild-to-moderate hypothermic circulatory arrest and selective cerebral perfusion. J Cardiovasc Surg (Torino) 2015; 56:525-530. [PMID: 25723762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The purpose of this study was to evaluate surgical results of aortic repair with antegrade selective cerebral perfusion (ASCP) and mild-to-moderate hypothermia (MH) from 28 to 31°C comparing with previous series with hypothermia from 20°C to 27 °C. METHODS Between 2000 and 2011, 109 consecutive patients underwent surgical repair for acute type A aortic dissection with circulatory arrest and ASCP and MH in our institution. Mean patient age was 67±11 years old. Total arch replacement was performed in 85 patients (78%). Thirty (27%) patients had shock status preoperatively. The patients were divided into two different subsets, which is group A (circulatory arrest at less than 27.9 °C, N.=70), and group B (at more than 28 °C, N.=39). RESULTS The mean extra-corporeal circulation time was 185±47 minutes in group A and 155±38 minutes in group B (P<0.001). The hospital mortality was 11.4% in group A and 10.3% in group B (P>0.05). Permanent neurological deficit occurred in 10 patients (14.3%) in group A, and in 5 (12.8%) in group B (P>0.05). Two (2.8%) paraplegia occurred in group A, and none in group B (P>0.05). The incidence of renal failure requiring hemodialysis was 17.1% in group A and 7.7% in group B, (P>0.05). Respiratory failure after surgery occurred in 27.1% of patients in group A, and 5.1% in group B (P=0.005). CONCLUSION Circulatory arrest at more than 28 °C offered sufficient cerebral and distal organ protection for acute type A aortic dissection.
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Affiliation(s)
- S Numata
- Department of Cardiovascular Surgery, Fukui Cardiovascular Center, Fukui, Japan -
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Uni M, Yoshimi A, Yamazaki S, Taoka K, Shinohara A, Nannya Y, Nakamura F, Kurokawa M. Comparison of garenoxacin with levofloxacin as antimicrobial prophylaxis in acute myeloid leukemia. Jpn J Clin Oncol 2015; 45:745-8. [PMID: 25989991 DOI: 10.1093/jjco/hyv071] [Citation(s) in RCA: 3] [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: 03/27/2015] [Accepted: 04/10/2015] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE Levofloxacin is widely used as antimicrobial prophylaxis against high-risk chemotherapy-induced neutropenia. Garenoxacin, a fluoroquinolone developed in Japan, shows a stronger in vitro antimicrobial activity against Gram-positive bacteria than levofloxacin. METHODS We retrospectively analyzed high-risk patients with acute myeloid leukemia who were administered garenoxacin (n = 36) or levofloxacin (n = 120) during chemotherapy. We compared the profiles of infections between these fluoroquinolones. RESULTS Febrile events occurred in 31 (86%) and 93 (78%) cases in the garenoxacin and levofloxacin group, respectively (P = 0.35). Bloodstream infections by Gram-positive bacteria were recorded in one (3%) case in the garenoxacin group and 25 (21%) cases in the levofloxacin group (P < 0.01). In contrast, bloodstream infections by Gram-negative microorganisms were identified in five (4%) cases in the levofloxacin group and eight (22%) cases in the garenoxacin group (P < 0.01). CONCLUSIONS These results indicate that there may be substantial differences in the antimicrobial spectrum between different fluoroquinolones. Although there are several biases due to rather small sample size and the retrospective nature, we should take the differences into consideration when we administer a prophylactic fluoroquinolone to a patient with hematological disease.
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Affiliation(s)
- Masahiro Uni
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Akihide Yoshimi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Sho Yamazaki
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Kazuki Taoka
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Akihito Shinohara
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Yasuhito Nannya
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Fumihiko Nakamura
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
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45
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Shimoaka T, Wakai C, Sakabe T, Yamazaki S, Hasegawa T. Hydration structure of strongly bound water on the sulfonic acid group in a Nafion membrane studied by infrared spectroscopy and quantum chemical calculation. Phys Chem Chem Phys 2015; 17:8843-9. [DOI: 10.1039/c5cp00567a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The hydration structure of the ‘strongly bound water’ around the sulfonic acid (SA) groups in Nafion is studied using infrared spectroscopy with the aid of quantum chemical (QC) calculations.
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Affiliation(s)
- T. Shimoaka
- Laboratory of Solution and Interface Chemistry
- Division of Environmental Chemistry
- Institute for Chemical Research
- Kyoto University
- Uji
| | - C. Wakai
- Laboratory of Solution and Interface Chemistry
- Division of Environmental Chemistry
- Institute for Chemical Research
- Kyoto University
- Uji
| | - T. Sakabe
- Analysis and Simulation Center
- Asahi Kasei Corporation
- Fuji-shi
- Japan
| | - S. Yamazaki
- Analysis and Simulation Center
- Asahi Kasei Corporation
- Fuji-shi
- Japan
| | - T. Hasegawa
- Laboratory of Solution and Interface Chemistry
- Division of Environmental Chemistry
- Institute for Chemical Research
- Kyoto University
- Uji
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46
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Yamazaki S, Yaku H, Doi K, Numata S, Yamamoto T, Kobayashi T, Manabe K. 143 * EVALUATION OF RISK FACTORS FOR RECURRENCE OF ISCHAEMIC MITRAL REGURGITATION AFTER UNDERSIZED MITRAL RING ANNULOPLASTY USING CARDIOVASCULAR MAGNETIC RESONANCE IMAGING. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu276.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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47
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Fujita Y, Yokouchi H, Nishihara H, Ishida T, Suzuki H, Uramoto H, Yamazaki S, Kikuchi H, Akie K, Sugaya F, Takamura K, Harada M, Harada T, Higuchi M, Maemondo M, Honjo O, Akita H, Isobe H, Nishimura M, Munakata M. Updated Data on Clinical and Molecular Profile of Surgically Resected Small Cell Lung Cancer: Intergroup Study with Fight002 and Hot1301. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu355.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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Harada S, Yamazaki S, Nakamura F, Morita K, Yoshimi A, Shinozaki-Ushiku A, Fukayama M, Kurokawa M. Autoimmune neutropenia preceding Helicobacter pylori-negative MALT lymphoma with nodal dissemination. Int J Clin Exp Pathol 2014; 7:6386-6390. [PMID: 25337296 PMCID: PMC4203267] [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] [Received: 07/24/2014] [Accepted: 08/23/2014] [Indexed: 06/04/2023]
Abstract
Autoimmune neutropenia (AIN), resulting from granulocyte-specific autoantibodies, is much less frequent than other autoimmune hematologic disorders including autoimmune hemolytic anemia (AIHA) and immune thrombocytopenia (ITP). These autoimmune disorders may precede, synchronize, or follow collagen disorders, viral infections, and lymphoid neoplasms. Herein we present the first case of AIN in association with Helicobacter pylori-negative mucosa-associated lymphoid tissue (MALT) lymphoma with nodal dissemination. In our case, AIN, accompanied by ITP, occurred prior to the clinical manifestation of lymphoma. AIN and ITP were well managed afterwards, but they relapsed in accordance with the recurrence of lymphoma. The administration of prednisolone at 0.5 mg/kg daily alleviated the cytopenias within a week. In general, combination chemotherapy is performed for the treatment of lymphoma-associated autoimmune hematologic disorders and indeed seems to be effective. Our case indicates that corticosteroid monotherapy may be effective for lymphoma-associated AIN especially when AIN precedes the onset of lymphoma.
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MESH Headings
- Adult
- Antibodies, Monoclonal, Murine-Derived/administration & dosage
- Antineoplastic Agents/administration & dosage
- Biomarkers, Tumor/analysis
- Biopsy
- Female
- Glucocorticoids/administration & dosage
- Humans
- Immunohistochemistry
- Lymphatic Metastasis
- Lymphoma, B-Cell, Marginal Zone/diagnosis
- Lymphoma, B-Cell, Marginal Zone/drug therapy
- Lymphoma, B-Cell, Marginal Zone/immunology
- Neutropenia/diagnosis
- Neutropenia/drug therapy
- Neutropenia/immunology
- Positron-Emission Tomography
- Prednisolone/administration & dosage
- Purpura, Thrombocytopenic, Idiopathic/diagnosis
- Purpura, Thrombocytopenic, Idiopathic/drug therapy
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Recurrence
- Rituximab
- Time Factors
- Treatment Outcome
- Whole Body Imaging/methods
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Affiliation(s)
- Saori Harada
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Sho Yamazaki
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Fumihiko Nakamura
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Ken Morita
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Akihide Yoshimi
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Aya Shinozaki-Ushiku
- Department of Pathology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Masashi Fukayama
- Department of Pathology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, Graduate School of Medicine, The University of Tokyo7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
- Department of Cell Therapy and Transplantation Medicine, The University of Tokyo HospitalTokyo, Japan
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Stroh M, Duda DG, Takimoto CH, Yamazaki S, Vicini P. Translation of anticancer efficacy from nonclinical models to the clinic. CPT Pharmacometrics Syst Pharmacol 2014; 3:e128. [PMID: 25098530 PMCID: PMC4150926 DOI: 10.1038/psp.2014.28] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 04/28/2014] [Indexed: 01/06/2023]
Abstract
Mouse cancer models have provided critical insights into tumor biology; however, clinical translation of these findings has been challenging. This perspective posits that factors impacting on successful translation start with limitations in capturing human cancer pathophysiology and end with challenges in generating robust translatable preclinical end points. A comprehensive approach that considers clinically relevant mouse models with both an integrated biomarker strategy and a complementary modeling and simulation effort will strengthen the current oncology drug development paradigm.
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Affiliation(s)
- M Stroh
- Clinical Pharmacology, Genentech, South San Francisco, California, USA
| | - D G Duda
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - C H Takimoto
- Translational Medicine Early Development, Janssen Research & Development, Radnor, Pennsylvania, USA
| | - S Yamazaki
- Pharmacokinetics, Dynamics and Metabolism-New Biological Entities, Pfizer, San Diego, California, USA
| | - P Vicini
- Pharmacokinetics, Dynamics and Metabolism-New Biological Entities, Pfizer, San Diego, California, USA
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50
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Locatelli F, Choukroun G, Fliser D, Moecks J, Wiggenhauser A, Gupta A, Swinkels DW, Lin V, Guss C, Pratt R, Carrilho P, Martins AR, Alves M, Mateus A, Gusmao L, Parreira L, Assuncao J, Rodrigues I, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E, Zitt E, Sturm G, Kronenberg F, Neyer U, Knoll F, Lhotta K, Weiss G, Robinson BM, Larkina M, Bieber B, Kleophas W, Li Y, Locatelli F, McCullough K, Nolen JG, Port FK, Pisoni RL, Kalicki RM, Uehlinger DE, Ogawa C, Kanda F, Tomosugi N, Maeda T, Kuji T, Fujikawa T, Shino M, Shibata K, Kaneda T, Nishihara M, Satta H, Kawata SI, Koguchi N, Tamura K, Hirawa N, Toya Y, Umemura S, Chanliau J, Martin H, Stamatelou K, Gonzalez-Tabares L, Manamley N, Farouk M, Addison J, Donck J, Schneider A, Gutjahr-Lengsfeld L, Ritz E, Scharnagl H, Gelbrich G, Pilz S, Macdougall IC, Wanner C, Drechsler C, Kuntsevich V, Charen E, Kobena D, Sheth N, Siktel H, Levin NW, Winchester JF, Kotanko P, Kaysen G, Kuragano T, Kida A, Yahiro M, Nanami M, Nagasawa Y, Hasuike Y, Nakanishi T, Stamopoulos D, Mpakirtzi N, Dimitratou V, Griveas I, Lianos E, Grapsa E, Sasaki Y, Yamazaki S, Fujita K, Kurasawa M, Yorozu K, Shimonaka Y, Suzuki N, Yamamoto M, Zwiech R, Szczepa ska J, Bruzda-Zwiech A, Rao A, Gilg J, Caskey F, Kirkpantur A, Balci MM, Turkvatan A, Afsar B, Alkis M, Mandiroglu F, Kim YO, Yoon SA, Kim YS, Choi SJ, Min JW, Cheong MA, Hasuike Y, Kida A, Oue M, Yamamoto K, Kimura T, Fukao W, Yahiro M, Kaibe S, Nanami M, Nakanishi T, Djuric PS, Ikonomovski J, Tosic J, Jankovic A, Majster Z, Stankovic Popovic V, Dimkovic N, Aicardi Spalloni V, Del Vecchio L, Longhi S, Violo L, La Milia V, Pontoriero G, Locatelli F, Shino M, Kuji T, Fujikawa T, Toya Y, Umemura S, Macdougall I, Rumjon A, Mangahis E, Goldstein L, Ryzlewicz T, Becker F, Kilgallon W, Fukasawa M, Otake Y, Yamagishi T, Kamiyama M, Kobayashi H, Takeda M, Toida T, Sato Y, Fujimoto S. DIALYSIS ANAEMIA. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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