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Ueki H, Ogawa C, Goto H, Nishi M, Yamanaka J, Mochizuki S, Nishikawa T, Kumamoto T, Nishiuchi R, Kikuta A, Yamamoto S, Igarashi S, Sato A, Hori T, Saito AM, Watanabe T, Deguchi T, Manabe A, Horibe K, Toyoda H. TBI, etoposide, and cyclophosphamide conditioning for intermediate-risk relapsed childhood acute lymphoblastic leukemia. Int J Hematol 2024; 119:450-458. [PMID: 38267673 DOI: 10.1007/s12185-024-03710-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 12/27/2023] [Accepted: 01/08/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND In children with intermediate-risk relapsed acute lymphoblastic leukemia (ALL), allogeneic hematopoietic stem cell transplantation (allo-HSCT) has markedly improved the outcome of patients with an unsatisfactory minimal residual disease (MRD) response. Total body irradiation (TBI), etoposide (ETP), and cyclophosphamide (CY) have been shown to be equivalent to or better than TBI + ETP for conditioning, so we hypothesized that even greater survival could be achieved due to recent advances in HSCT and supportive care. PROCEDURE We prospectively analyzed the efficacy and safety of allo-HSCT with a unified conditioning regimen of TBI + ETP + CY in children with intermediate-risk relapsed ALL, based on MRD in the bone marrow after induction, from the Japanese Pediatric Leukemia/Lymphoma Study Group (JPLSG) ALL-R08-II nationwide cohort (UMIN000002025). RESULTS Twenty patients with post-induction MRD ≥ 10-3 and two not evaluated for MRD underwent allo-HSCT. Engraftment was confirmed in all patients, and no transplantation-related mortality was observed. The 3-year event-free survival and overall survival rates after transplantation were 86.4% ± 7.3% and 95.5% ± 4.4%, respectively. CONCLUSION Allo-HSCT based on post-induction MRD with TBI + ETP + CY conditioning was feasible in Japanese children with intermediate-risk relapsed ALL.
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Affiliation(s)
- Hideaki Ueki
- Department of Pediatric Hematology/Oncology, Japanese Red Cross Narita Hospital, Narita, Japan
| | - Chitose Ogawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Masanori Nishi
- Department of Pediatrics, Faculty of Medicine, Saga University, Saga, Japan
| | - Junko Yamanaka
- Department of Pediatrics, National Center for Global Health and Medicine, Tokyo, Japan
| | - Shinji Mochizuki
- Department of Pediatrics, National Center for Global Health and Medicine, Tokyo, Japan
| | - Takuro Nishikawa
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Tadashi Kumamoto
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Ritsuo Nishiuchi
- Department of Pediatrics, Kochi Health Sciences Center, Kochi, Japan
| | - Atsushi Kikuta
- Department of Pediatric Oncology, Fukushima Medical University Hospital, Fukushima, Japan
| | - Shohei Yamamoto
- Department of Pediatrics, Tokai University School of Medicine, Isehara, Japan
| | - Shunji Igarashi
- Department of Pediatric Hematology/Oncology, Japanese Red Cross Narita Hospital, Narita, Japan
| | - Atsushi Sato
- Department of Hematology/Oncology, Miyagi Children's Hospital, Sendai, Japan
| | - Toshinori Hori
- Department of Pediatrics, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Akiko M Saito
- Clinical Research Center, NHO Nagoya Medical Center, Nagoya, Japan
| | - Tomoyuki Watanabe
- Department of Nutritional Science, Faculty of Psychological and Physical Science, Aichi Gakuin University, Nisshin, Japan
| | - Takao Deguchi
- Division of Cancer Immunodiagnostics, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Atsushi Manabe
- Department of Pediatrics, Hokkaido University, Sapporo, Japan
| | - Keizo Horibe
- Clinical Research Center, NHO Nagoya Medical Center, Nagoya, Japan
| | - Hidemi Toyoda
- Department of Pediatrics, Graduate School of Medicine, Mie University, 2-174 Edobashi, Tsu, Mie, 514-8507, Japan.
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Gunji Y, Yagasaki H, Kanezawa K, Shimozawa K, Ueno M, Yoda T, Mochizuki S, Morioka I. T-cell-replete retransplantation in children with severe aplastic anemia who developed late graft failure. Pediatr Blood Cancer 2024; 71:e30733. [PMID: 37849231 DOI: 10.1002/pbc.30733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/14/2023] [Accepted: 10/10/2023] [Indexed: 10/19/2023]
Affiliation(s)
- Yuki Gunji
- Department of Pediatrics, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Hiroshi Yagasaki
- Department of Pediatrics, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Koji Kanezawa
- Department of Pediatrics, Nihon University Itabashi Hospital, Tokyo, Japan
| | | | - Masaru Ueno
- Department of Pediatrics, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Takanao Yoda
- Department of Pediatrics, Nihon University Itabashi Hospital, Tokyo, Japan
| | - Shinji Mochizuki
- Department of Pediatrics, Center Hospital, National Center for Global Health and Medicine, Tokyo, Japan
| | - Ichiro Morioka
- Department of Pediatrics, Nihon University Itabashi Hospital, Tokyo, Japan
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Miyagawa N, Goto H, Ogawa A, Kikuta A, Kosaka Y, Sekimizu M, Tomizawa D, Toyoda H, Hiramatsu H, Hara J, Mochizuki S, Nakayama H, Yoshimura K, Iijima-Yamashita Y, Sanada M, Ogawa C. Phase 2 study of combination chemotherapy with bortezomib in children with relapsed and refractory acute lymphoblastic leukemia. Int J Hematol 2023:10.1007/s12185-023-03609-8. [PMID: 37127801 DOI: 10.1007/s12185-023-03609-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Treatment outcomes for children with relapsed and refractory acute lymphoblastic leukemia (R/R-ALL) remain poor, and the optimal induction therapy has not been determined. Bortezomib is a proteasome inhibitor that acts synergistically and additively with standard chemotherapy for ALL. We evaluated the efficacy and safety of combination chemotherapy with bortezomib in children with R/R-ALL. This single-arm, multicenter, phase 2 study was conducted in Japan between 2016 and 2020. Eligible patients were divided into two cohorts: a high-risk first-relapse cohort of untreated patients with high-risk first-relapsed ALL and an expansion cohort of patients with refractory ALL, including multiple relapses, relapse after allogeneic hematopoietic cell transplantation, and induction failure. All patients received a single course of chemotherapy as induction therapy. Sixteen patients (10 in the high-risk first-relapse cohort, six in the expansion cohort) were evaluable. The overall remission rate after induction therapy was 60% in the high-risk first-relapse cohort and 16.7% in the expansion cohort. All patients had minimal residual disease. Adverse events were acceptable except for interstitial lung disease and hypoxia in a patient in the expansion cohort, but addition of bortezomib to conventional chemotherapy did not produce obvious improvement in children with R/R-ALL.
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Affiliation(s)
- Naoyuki Miyagawa
- Division of Hematology and Oncology, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-Ku, Yokohama, Kanagawa, 232-8555, Japan.
| | - Hiroaki Goto
- Division of Hematology and Oncology, Kanagawa Children's Medical Center, 2-138-4 Mutsukawa, Minami-Ku, Yokohama, Kanagawa, 232-8555, Japan
| | - Atsushi Ogawa
- Department of Pediatrics, Niigata Cancer Center Hospital, Niigata, Japan
| | - Atsushi Kikuta
- Department of Pediatric Oncology, Fukushima Medical University Hospital, Fukushima, Japan
| | - Yoshiyuki Kosaka
- Department of Hematology and Oncology, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Masahiro Sekimizu
- Department of Pediatrics, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Daisuke Tomizawa
- Division of Leukemia and Lymphoma, Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Hidemi Toyoda
- Department of Pediatrics, Mie University Graduate School of Medicine, Mie, Japan
| | - Hidefumi Hiramatsu
- Department of Pediatrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Junichi Hara
- Department of Pediatric Hematology/Oncology, Osaka City General Hospital, Osaka, Japan
| | - Shinji Mochizuki
- Department of Pediatrics, Hiroshima University Hospital, Hiroshima, Japan
| | - Hideki Nakayama
- Department of Pediatrics, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan
| | - Kenichi Yoshimura
- Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Yuka Iijima-Yamashita
- Department of Advanced Diagnosis, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Masashi Sanada
- Department of Advanced Diagnosis, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Chitose Ogawa
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
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Obeng KA, Mochizuki S, Koike S, Toyoshima Y, Sato Y, Yoshizawa F. Analysis of the Stimulative Effect of Tryptophan on Hepatic Protein Synthesis in Rats. J Nutr Sci Vitaminol (Tokyo) 2022; 68:312-319. [PMID: 36047103 DOI: 10.3177/jnsv.68.312] [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] [Indexed: 11/27/2022]
Abstract
Tryptophan is an essential amino acid important as a protein building block, but it also serves as substrate for the generation of several bioactive compounds with important physiological roles. Furthermore, tryptophan has been reported to have a unique role as a nutritional signaling molecule that regulates protein synthesis in mouse and rat liver. In the present study, the acute effects of tryptophan on protein synthesis were confirmed and compared with those of leucine in rats. Eighteen hours fasted rats were orally administered of tryptophan or leucine at a dose of 135 mg/100 g body weight by gavage and then sacrificed 1 h after administration. The effects of tryptophan and leucine on the rate of protein synthesis were evaluated by the surface sensing of translation (SUnSET) method. We also examined the ability of tryptophan to induce activation of the mTOR pathway by measuring phosphorylation of 4E-BP1 and S6K1. Oral administration of tryptophan led to a stimulation of the rate of protein synthesis concomitant with activation of mTOR pathway in the liver, but not in skeletal muscle. We also investigated the sensitivity of liver protein synthesis to tryptophan administration. The half-maximal effective doses (ED50) of tryptophan in stimulating 4E-BP1 and S6K1 phosphorylation were both about 60% of daily intake. The effect of tryptophan on hepatic protein synthesis was similar to that of leucine on muscle protein synthesis, and the sensitivity of liver protein synthesis to tryptophan administration appeared to be almost the same or slightly lower than that of muscle protein synthesis to leucine administration.
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Affiliation(s)
- Kodwo Amuzuah Obeng
- Department of Biological Production Science, The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology
| | - Shinji Mochizuki
- Department of Agrobiology and Bioresources, School of Agriculture, Utsunomiya University
| | - Shinichiro Koike
- Department of Biological Production Science, The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology
| | - Yuka Toyoshima
- Department of Agrobiology and Bioresources, School of Agriculture, Utsunomiya University
| | - Yusuke Sato
- Department of Biological Production Science, The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology.,Department of Agrobiology and Bioresources, School of Agriculture, Utsunomiya University
| | - Fumiaki Yoshizawa
- Department of Biological Production Science, The United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology.,Department of Agrobiology and Bioresources, School of Agriculture, Utsunomiya University
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Yamanaka J, Takasago S, Horigome A, Hayashi M, Matsunashi S, Shioda S, Tanaka M, Seki J, Kaneshige M, Akamatsu T, Uryu H, Mochizuki S, Goishi K, Shichino H. Adapting pediatric health care responses to the COVID-19 pandemic in Japan: A clinical perspective. Glob Health Med 2022; 4:242-246. [PMID: 36119789 PMCID: PMC9420331 DOI: 10.35772/ghm.2022.01043] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/08/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
The COVID-19 pandemic required our pediatric health care staff to adjust to many irregularities and solve serious issues in our routine clinical practice. In outpatient clinics, many children exhibited common cold symptoms that mimic COVID-19, thus we initially screened patients via an interview form, then later via SARS-CoV-2 antigen test. Cluster infections were entirely avoided by following systematic, everyday precautions. Patientsquality of life has been difficult to maintain during the pandemic, due to social and staffing restrictions. Other unexpected repercussions - such as an unexpected lack of seasonal virus infections, then a respiratory syncytial (RS) virus outbreak - required agile management of hospital resources. While we must continue to adapt our treatment programs in response to the evolving COVID-19 crisis, it remains essential to support the well-being of children through regular health check-ups, mental health support, educational opportunities, proper socialization, and close communication with parents and families.
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Affiliation(s)
- Junko Yamanaka
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
- Advanced and Specialized Medicine, Graduate School of Medicine, Juntendo University Tokyo, Japan
| | - Satoshi Takasago
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Akihisa Horigome
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Miho Hayashi
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Satoshi Matsunashi
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Shogo Shioda
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Mizue Tanaka
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Junko Seki
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Masao Kaneshige
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Tomohisa Akamatsu
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
- Department of Gene Diagnostics and Therapeutics, National Center for Global Health and Medicine Research Institute, Tokyo, Japan
| | - Hideko Uryu
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Shinji Mochizuki
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Keiji Goishi
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
| | - Hiroyuki Shichino
- Department of Pediatrics, National Center for Global Health and Medicine Hospital, Tokyo, Japan
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Koga Y, Kosaka Y, Koh K, Matsumoto K, Kumamoto T, Fujisaki H, Ishida Y, Suzuki R, Mochizuki S, Goto H, Yuza Y, Hara J. PS3-5 Phase III study of palonosetron for preventing chemotherapy-induced nausea and vomiting in pediatric patients. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.520] [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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7
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Hara J, Kosaka Y, Koh K, Matsumoto K, Kumamoto T, Fujisaki H, Ishida Y, Suzuki R, Mochizuki S, Goto H, Yuza Y, Koga Y. Phase III study of palonosetron for prevention of chemotherapy-induced nausea and vomiting in pediatric patients. Jpn J Clin Oncol 2021; 51:1204-1211. [PMID: 34021341 DOI: 10.1093/jjco/hyab079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 05/04/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Palonosetron has demonstrated non-inferiority to ondansetron for prevention of chemotherapy-induced nausea and vomiting in pediatric patients in the United States and Europe. We conducted a single-arm registration study to evaluate the efficacy, safety and pharmacokinetics of palonosetron in pediatric patients in Japan. METHODS Key inclusion criteria were age of 28 days to 18 years and malignant disease for which initial highly emetogenic chemotherapy or moderately emetogenic chemotherapy was planned. Patients received palonosetron at 20 μg/kg over at least 30 s intravenously before the start of highly emetogenic chemotherapy or moderately emetogenic chemotherapy and received dexamethasone on Days 1-3. The primary endpoint was the proportion of patients achieving a complete response in the overall phase (0-120 h) in Course 1, and its threshold was set at 30%. RESULTS From December 2016 to June 2019, 60 patients were enrolled, and 58 received at least one dose of palonosetron. The proportion of patients achieving a complete response during the overall phase was 58.6% (95% confidence interval, 44.9%-71.4%), showing the primary endpoint was met (P < 0.0001). Treatment-related adverse events occurred in two patients (3.4%). Regarding the pharmacokinetics of palonosetron, neither the plasma concentration immediately after administration nor the area under the plasma concentration-time curve from time 0 to infinity differed significantly among the age groups. CONCLUSION We demonstrated the efficacy of palonosetron in pediatric patients receiving highly emetogenic chemotherapy or moderately emetogenic chemotherapy and confirmed the appropriateness of the 20 μg/kg dose, regardless of age, considering the safety and pharmacokinetic profiles. TRIAL REGISTRATION JapicCTI-163305, registered 6 June 2016.
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Affiliation(s)
- Junichi Hara
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital, Osaka, Japan
| | - Yoshiyuki Kosaka
- Department of Hematology and Oncology, Kobe Children's Hospital, Kobe, Japan
| | - Katsuyoshi Koh
- Department of Hematology/Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Kimikazu Matsumoto
- Children's Cancer Center, National Center for Child Health and Development, Tokyo, Japan
| | - Tadashi Kumamoto
- Department of Pediatric Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroyuki Fujisaki
- Department of Pediatric Hematology and Oncology, Osaka City General Hospital, Osaka, Japan
| | - Yuji Ishida
- Department of Pediatric Oncology, Shizuoka Cancer Center, Shizuoka, Japan
| | - Ryoko Suzuki
- Department of Child Health, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shinji Mochizuki
- Department of Pediatrics, Graduate School of Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Yokohama, Japan
| | - Yuki Yuza
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Yuhki Koga
- Department of Pediatrics, Kyushu University, Fukuoka, Japan
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Nagata K, Shinto E, Yamadera M, Shiraishi T, Kajiwara Y, Okamoto K, Mochizuki S, Hase K, Kishi Y, Ueno H. Prognostic and predictive values of tumour budding in stage IV colorectal cancer. BJS Open 2020; 4:693-703. [PMID: 32472647 PMCID: PMC7397347 DOI: 10.1002/bjs5.50300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/22/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Tumour budding is an important prognostic feature in early-stage colorectal cancer, but its prognostic significance in metastatic disease has not been fully investigated. METHODS Patients with stage IV disease who had primary colorectal tumour resection without previous chemotherapy or radiotherapy from January 2000 to December 2018 were reviewed retrospectively. Budding was evaluated at the primary site and graded according to the criteria of the International Tumor Budding Consensus Conference (ITBCC) (BD1, low; BD2, intermediate; BD3, high). Patients were categorized by metastatic (M1a, M1b) and resectional (R0/R1, R2/unresected) status. Subgroups were compared for overall (OS) and recurrence-free (RFS) survival in R0/R1 subgroups; R2/unresected patients were evaluated for the rate of tumour progression, based on change in tumour size from baseline. RESULTS Of 371 patients observed during the study, 362 were analysed. Patients with BD3 had a lower 5-year OS rate than those with BD1 + BD2 (18·4 versus 40·5 per cent; P < 0·001). Survival analyses according to metastatic and resection status also showed that BD3 was associated with shorter OS than BD1 + BD2. In multivariable analysis, BD3 (hazard ratio (HR) 1·51, 95 per cent c.i. 1·11 to 2·10; P = 0·009), T4 status (HR 1·39) and R2/unresected status (HR 3·50) were associated with decreased OS. In the R0/R1 subgroup, the 2-year RFS rate was similar for BD3 and BD1 + BD2 according to metastatic status. There was no significant difference between BD3 and BD1 + BD2 for change in tumour size in the R2/unresected subgroup (P = 0·094). Of 141 patients with initially unresectable metastases who had chemotherapy, 35 achieved conversion from unresectable to resectable status. The conversion rate was significantly higher for BD1 + BD2 than for BD3 (36 versus 18 per cent; P = 0·016). CONCLUSION Stage IV colorectal cancer with high-grade tumour budding according to ITBCC criteria correlates with poor prognosis.
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Affiliation(s)
- K. Nagata
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - E. Shinto
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - M. Yamadera
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - T. Shiraishi
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - Y. Kajiwara
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - K. Okamoto
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - S. Mochizuki
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - K. Hase
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - Y. Kishi
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
| | - H. Ueno
- Department of SurgeryNational Defence Medical College3‐2 NamikiTokorozawa359‐8513Japan
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Iizuka-Koga M, Asashima H, Ando M, Lai CY, Mochizuki S, Nakanishi M, Nishimura T, Tsuboi H, Hirota T, Takahashi H, Matsumoto I, Otsu M, Sumida T. Functional Analysis of Dendritic Cells Generated from T-iPSCs from CD4+ T Cell Clones of Sjögren's Syndrome. Stem Cell Reports 2018; 8:1155-1163. [PMID: 28494936 PMCID: PMC5425788 DOI: 10.1016/j.stemcr.2017.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 10/03/2016] [Revised: 04/07/2017] [Accepted: 04/10/2017] [Indexed: 12/24/2022] Open
Abstract
Although it is important to clarify the pathogenic functions of T cells in human samples, their examination is often limited due to difficulty in obtaining sufficient numbers of dendritic cells (DCs), used as antigen-presenting cells, especially in autoimmune diseases. We describe the generation of DCs from induced pluripotent stem cells derived from T cells (T-iPSCs). We reprogrammed CD4+ T cell clones from a patient with Sjögren's syndrome (SS) into iPSCs, which were differentiated into DCs (T-iPS-DCs). T-iPS-DCs had dendritic cell-like morphology, and expressed CD11c, HLA-DR, CD80, CD86, and also BDCA-3. Compared with monocyte-derived DCs, the capacity for antigen processing was similar, and T-iPS-DCs induced the proliferative response of autoreactive CD4+ T cells. Moreover, we could evaluate T cell functions of the patient with SS. In conclusion, we obtained adequate numbers of DCs from T-iPSCs, which could be used to characterize pathogenic T cells in autoimmune diseases such as SS. Dendritic cells were generated from iPSCs derived from CD4+ T cells (T-iPS-DCs) Adequate numbers of functional DCs were generated from a small blood sample The comparison between T-iPS-DCs and monocyte-derived DCs was evaluated The functional assays of T cells in Sjögren's syndrome were analyzed by T-iPS-DCs
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Affiliation(s)
- Mana Iizuka-Koga
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Hiromitsu Asashima
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Miki Ando
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Tokyo 108-8639, Japan; Department of Transfusion Medicine and Stem Cell Regulation, Juntendo University School of Medicine, Tokyo 113-8421, Japan
| | - Chen-Yi Lai
- Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Tokyo 108-8639, Japan
| | - Shinji Mochizuki
- Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Tokyo 108-8639, Japan
| | - Mahito Nakanishi
- Research Laboratory for Stem Cell Engineering, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8565, Japan
| | - Toshinobu Nishimura
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, CA 94305, USA
| | - Hiroto Tsuboi
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Tomoya Hirota
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Hiroyuki Takahashi
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Isao Matsumoto
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan
| | - Makoto Otsu
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Tokyo 108-8639, Japan; Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Tokyo 108-8639, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba 305-8575, Japan.
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10
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Uruga H, Fujii T, Yamamoto G, Moriguchi S, Takahashi Y, Ogawa K, Murase R, Mochizuki S, Hanada S, Takaya H, Miyamoto A, Morokawa N, Kishi K. P3.02-033 Pathological and Molecular Alterations after First and Second Generation EGFR-TKI Therapy in Patients with EGFR-Mutated Lung Adenocarcinomas. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1563] [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: 10/18/2022]
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Shibata T, Nishida K, Mochizuki S, Mattei S, Lettry J, Hatayama A, Ueno A, Oguri H, Ohkoshi K, Ikegami K, Takagi A, Asano H, Naito F. Numerical study of plasma generation process and internal antenna heat loadings in J-PARC RF negative ion source. Rev Sci Instrum 2016; 87:02B128. [PMID: 26932010 DOI: 10.1063/1.4931787] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A numerical model of plasma transport and electromagnetic field in the J-PARC (Japan Proton Accelerator Research Complex) radio frequency ion source has been developed to understand the relation between antenna coil heat loadings and plasma production/transport processes. From the calculation, the local plasma density increase is observed in the region close to the antenna coil. Electrons are magnetized by the magnetic field line with absolute magnetic flux density 30-120 Gauss which leads to high local ionization rate. The results suggest that modification of magnetic configuration can be made to reduce plasma heat flux onto the antenna.
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Affiliation(s)
- T Shibata
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - K Nishida
- Keio University, Hiyoshi, Kohoku-ku, Yokohama-shi, Kanagawa-ken 223-8522, Japan
| | - S Mochizuki
- Keio University, Hiyoshi, Kohoku-ku, Yokohama-shi, Kanagawa-ken 223-8522, Japan
| | - S Mattei
- European Organization for Nuclear Research (CERN), 1211 Geneva 23, Switzerland
| | - J Lettry
- European Organization for Nuclear Research (CERN), 1211 Geneva 23, Switzerland
| | - A Hatayama
- Keio University, Hiyoshi, Kohoku-ku, Yokohama-shi, Kanagawa-ken 223-8522, Japan
| | - A Ueno
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - H Oguri
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - K Ohkoshi
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - K Ikegami
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - A Takagi
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - H Asano
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - F Naito
- J-PARC Center, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
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Mochizuki S, Mattei S, Nishida K, Hatayama A, Lettry J. Analysis of electron energy distribution function in the Linac4 H⁻ source. Rev Sci Instrum 2016; 87:02B108. [PMID: 26931990 DOI: 10.1063/1.4932322] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To understand the Electron Energy Distribution Function (EEDF) in the Radio Frequency Inductively Coupled Plasmas (RF-ICPs) in hydrogen negative ion sources, the detailed analysis of the EEDFs using numerical simulation and the theoretical approach based on Boltzmann equation has been performed. It is shown that the EEDF of RF-ICPs consists of two parts, one is the low energy part which obeys Maxwellian distribution and the other is high energy part deviated from Maxwellian distribution. These simulation results have been confirmed to be reasonable by the analytical approach. The results suggest that it is possible to enhance the dissociation of molecules and the resultant H(-) negative ion production by reducing the gas pressure.
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Affiliation(s)
- S Mochizuki
- Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - S Mattei
- CERN, 1211, Geneva 23, Switzerland
| | - K Nishida
- Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - A Hatayama
- Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - J Lettry
- CERN, 1211, Geneva 23, Switzerland
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Keino D, Kinoshita A, Tomizawa D, Takahashi H, Ida K, Kurosawa H, Koike K, Ota S, Iwasaki N, Fujimura J, Yuza Y, Kiyotani C, Yamamoto S, Osumi T, Ueda T, Mochizuki S, Isoyama K, Hanada R, Tawa A, Manabe A, Toguchi Y, Ohara A. Residual disease detected by multidimensional flow cytometry shows prognostic significance in childhood acute myeloid leukemia with intermediate cytogenetics and negative FLT3-ITD: a report from the Tokyo Children’s Cancer Study Group. Int J Hematol 2016; 103:416-22. [DOI: 10.1007/s12185-016-1937-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/28/2015] [Accepted: 01/07/2016] [Indexed: 01/03/2023]
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Konuma T, Kato S, Ooi J, Ebihara Y, Mochizuki S, Ishii H, Takei T, Oiwa-Monna M, Tojo A, Takahashi S. Second allogeneic transplantation using unrelated cord blood for relapsed hematological malignancies after allogeneic transplantation. Leuk Lymphoma 2015; 57:103-9. [PMID: 25926066 DOI: 10.3109/10428194.2015.1045900] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The efficacy of second allogeneic stem cell transplantation (SCT2) using cord blood (CB) for patients with relapsed hematological malignancies after initial allogeneic stem cell transplantation (SCT1) is unknown. We analyzed the results of SCT2 using single-unit unrelated CB in 34 adult patients with relapsed hematological malignancies after SCT1 in our institution. The patients had acute myeloid leukemia (n = 23), acute lymphoblastic leukemia (n = 7), chronic myelogenous leukemia (n = 2), and myelodysplastic syndrome (n = 2). The cumulative incidence of neutrophil and platelet engraftment was 81.6% at 30 days and 68.5% at 100 days, respectively. With a median follow-up of 40 months, the probability of overall survival at 3 years was 29.0%. The cumulative incidence of relapse and transplant-related mortality at 3 years were 60.7% and 27.2%, respectively. The use of CB could offer the opportunity to receive SCT2 for patients who experienced disease relapse after SCT1 without HLA-identical related or unrelated donors.
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Affiliation(s)
- Takaaki Konuma
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Seiko Kato
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Jun Ooi
- b Department of Hematology/Oncology , Teikyo University School of Medicine , Tokyo , Japan
| | - Yasuhiro Ebihara
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Shinji Mochizuki
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Hiroto Ishii
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Tomomi Takei
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Maki Oiwa-Monna
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Arinobu Tojo
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
| | - Satoshi Takahashi
- a Department of Hematology/Oncology , The Institute of Medical Science, The University of Tokyo , Tokyo , Japan
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15
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Yamamoto S, Otsu M, Matsuzaka E, Konishi C, Takagi H, Hanada S, Mochizuki S, Nakauchi H, Imai K, Tsuji K, Ebihara Y. Screening of drugs to treat 8p11 myeloproliferative syndrome using patient-derived induced pluripotent stem cells with fusion gene CEP110-FGFR1. PLoS One 2015; 10:e0120841. [PMID: 25803811 PMCID: PMC4372437 DOI: 10.1371/journal.pone.0120841] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 02/10/2015] [Indexed: 01/01/2023] Open
Abstract
Induced pluripotent stem (iPS) cells provide powerful tools for studying disease mechanisms and developing therapies for diseases. The 8p11 myeloproliferative syndrome (EMS) is an aggressive chronic myeloproliferative disorder (MPD) that is caused by constitutive activation of fibroblast growth factor receptor 1. EMS is rare and, consequently, effective treatment for this disease has not been established. Here, iPS cells were generated from an EMS patient (EMS-iPS cells) to assist the development of effective therapies for EMS. When iPS cells were co-cultured with murine embryonic stromal cells, EMS-iPS cells produced more hematopoietic progenitor and hematopoietic cells, and CD34+ cells derived from EMS-iPS cells exhibited 3.2–7.2-fold more macrophage and erythroid colony forming units (CFUs) than those derived from control iPS cells. These data indicate that EMS-iPS cells have an increased hematopoietic differentiation capacity, which is characteristic of MPDs. To determine whether a tyrosine kinase inhibitor (TKI) could suppress the increased number of CFUs formed by EMS-iPS-induced CD34+ cells, cells were treated with one of four TKIs (CHIR258, PKC 412, ponatinib, and imatinib). CHIR258, PKC 412, and ponatinib reduced the number of CFUs formed by EMS-iPS-induced CD34+ cells in a dose-dependent manner, whereas imatinib did not. Similar effects were observed on primary peripheral blood cells (more than 90% of which were blasts) isolated from the patient. This study provides evidence that the EMS-iPS cell line is a useful tool for the screening of drugs to treat EMS and to investigate the mechanism underlying this disease.
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Affiliation(s)
- Shohei Yamamoto
- Department of Pediatric Hematology/Oncology, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Makoto Otsu
- Department of Pediatric Hematology/Oncology, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Emiko Matsuzaka
- Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Chieko Konishi
- Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Haruna Takagi
- Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Sachiyo Hanada
- Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Shinji Mochizuki
- Department of Pediatric Hematology/Oncology, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Hiromitsu Nakauchi
- Division of Stem Cell Therapy, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kohzoh Imai
- Center for Antibody and Vaccine, IMSUT Hospital, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kohichiro Tsuji
- Department of Pediatric Hematology/Oncology, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- National Hospital Organization Shinshu Ueda Medical Center, Ueda, Japan
| | - Yasuhiro Ebihara
- Department of Pediatric Hematology/Oncology, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Division of Advanced Regenerative Medicine, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- * E-mail:
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Konuma T, Kato S, Ooi J, Ebihara Y, Mochizuki S, Oiwa-Monna M, Tojo A, Takahashi S. Third allogeneic stem cell transplantation (SCT) using unrelated cord blood for relapsed acute leukemia after second allogeneic SCT. Int J Hematol 2015; 101:392-7. [DOI: 10.1007/s12185-015-1755-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 01/26/2015] [Accepted: 01/27/2015] [Indexed: 11/30/2022]
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17
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Zhang Q, Ichimaru N, Higuchi S, Cai S, Hou J, Fujino M, Nonomura N, Kobayashi M, Ando H, Uno A, Sakurai K, Mochizuki S, Adachi Y, Ohno N, Zou H, Xu J, Li XK, Takahara S. Permanent acceptance of mouse cardiac allografts with CD40 siRNA to induce regulatory myeloid cells by use of a novel polysaccharide siRNA delivery system. Gene Ther 2015; 22:217-26. [DOI: 10.1038/gt.2014.119] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 11/06/2014] [Accepted: 11/17/2014] [Indexed: 01/27/2023]
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18
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Ebihara Y, Ishikawa K, Mochizuki S, Tanaka R, Manabe A, Iseki T, Maekawa T, Tsuji K. Allogeneic stem cell transplantation for patients with acute myeloid leukaemia developing from severe congenital neutropenia. Br J Haematol 2014; 164:459-61. [PMID: 24422727 DOI: 10.1111/bjh.12638] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Yasuhiro Ebihara
- Department of Paediatric Haematology-Oncology, Research Hospital, Institute of Medical Science, University of Tokyo, Tokyo, Japan.
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Konuma T, Kato S, Ooi J, Oiwa-Monna M, Ebihara Y, Mochizuki S, Yuji K, Ohno N, Kawamata T, Jo N, Yokoyama K, Uchimaru K, Tojo A, Takahashi S. Effect of ABO Blood Group Incompatibility on the Outcome of Single-Unit Cord Blood Transplantation after Myeloablative Conditioning. Biol Blood Marrow Transplant 2014; 20:577-81. [DOI: 10.1016/j.bbmt.2013.12.563] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 12/18/2013] [Indexed: 11/29/2022]
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20
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Konuma T, Kato S, Ooi J, Oiwa-Monna M, Ebihara Y, Mochizuki S, Yuji K, Ohno N, Kawamata T, Jo N, Yokoyama K, Uchimaru K, Asano S, Tojo A, Takahashi S. Single-Unit Cord Blood Transplantation after Granulocyte Colony-Stimulating Factor–Combined Myeloablative Conditioning for Myeloid Malignancies Not in Remission. Biol Blood Marrow Transplant 2014; 20:396-401. [DOI: 10.1016/j.bbmt.2013.12.555] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Accepted: 12/04/2013] [Indexed: 11/28/2022]
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Konuma T, Kato S, Ooi J, Oiwa-Monna M, Ebihara Y, Mochizuki S, Yuji K, Ohno N, Kawamata T, Jo N, Yokoyama K, Uchimaru K, Tojo A, Takahashi S. Impact of sex incompatibility on the outcome of single-unit cord blood transplantation for adult patients with hematological malignancies. Bone Marrow Transplant 2014; 49:634-9. [DOI: 10.1038/bmt.2014.10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/02/2013] [Accepted: 12/02/2013] [Indexed: 01/18/2023]
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Nishida K, Mochizuki S, Ohta M, Yasumoto M, Lettry J, Mattei S, Hatayama A. Equivalent circuit of radio frequency-plasma with the transformer model. Rev Sci Instrum 2014; 85:02B117. [PMID: 24593557 DOI: 10.1063/1.4832060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
LINAC4 H(-) source is radio frequency (RF) driven type source. In the RF system, it is required to match the load impedance, which includes H(-) source, to that of final amplifier. We model RF plasma inside the H(-) source as circuit elements using transformer model so that characteristics of the load impedance become calculable. It has been shown that the modeling based on the transformer model works well to predict the resistance and inductance of the plasma.
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Affiliation(s)
- K Nishida
- Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - S Mochizuki
- Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - M Ohta
- Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - M Yasumoto
- Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - J Lettry
- CERN Rte de Meyrin, 1200 Geneva, Switzerland
| | - S Mattei
- CERN Rte de Meyrin, 1200 Geneva, Switzerland
| | - A Hatayama
- Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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Ebihara Y, Yamamoto S, Mochizuki S, Tsukada M, Taya Y, Kawakita T, Kato S, Ooi J, Takahashi S, Tojo A, Tsuji K. Pneumothorax in an early phase after allogeneic hematopoietic stem cell transplantation. Hematol Rep 2013; 5:34-5. [PMID: 23888246 PMCID: PMC3719099 DOI: 10.4081/hr.2013.e10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2013] [Revised: 05/02/2013] [Accepted: 06/21/2013] [Indexed: 11/22/2022] Open
Abstract
Pneumothorax is very rare after early phase of hematopoietic stem cell transplantation (HSCT) and usually accompanied with pulmonary chronic graft-versus-host disease (GVHD), such as bronchiolitis obliterans and bronchiolitis obliterans organizing pneumonia. The present study describes the case of a seventeen-year-old male diagnosed with acute myeloid leukemia who underwent allogeneic bone marrow transplantation (BMT). Pneumothorax occurred at day 43 after BMT. Pneumothorax occurred in early phase of HSCT is extremely rare. The early onset of acute GVHD and the entity of cytomegalovirus might worsen the pulmonary tissue damages for the onset of pneumothorax, indicating that we should be aware of the possibility to occur pneumothorax even in the early period after allogeneic HSCT.
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Affiliation(s)
- Yasuhiro Ebihara
- Department of Pediatric Hematology/Oncology, Research Hospital, The Institute of Medical Science, The University of Tokyo
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Yamamoto S, Ebihara Y, Mochizuki S, Kawakita T, Kato S, Ooi J, Takahashi S, Tojo A, Yusa N, Furukawa Y, Oyaizu N, Watanabe J, Sato K, Kimura F, Tsuji K. Quantitative polymerase chain reaction detection of CEP110-FGFR1 fusion gene in a patient with 8p11 myeloproliferative syndrome. Leuk Lymphoma 2013; 54:2068-9. [PMID: 23327291 DOI: 10.3109/10428194.2013.767455] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Mochizuki S, Shimoda M, Okada Y. Response. J Natl Cancer Inst 2012. [DOI: 10.1093/jnci/djs460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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26
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Yamamoto S, Ebihara Y, Mochizuki S, Tsuda M, Yuji K, Uchimaru K, Tojo A, Tsuji K. Acute lymphoblastic leukemia with t(1;19)(q23;p13)/TCF3-PBX1 fusion in an adult male with Down Syndrome. Acta Haematol 2012; 128:242-3. [PMID: 22948124 DOI: 10.1159/000340049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 06/06/2012] [Indexed: 11/19/2022]
Affiliation(s)
- Shohei Yamamoto
- Division of Stem Cell Processing, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Japan.
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27
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Ebihara Y, Takahashi S, Mochizuki S, Kato S, Kawakita T, Ooi J, Yokoyama K, Nagamura F, Tojo A, Asano S, Tsuji K. Unrelated cord blood transplantation after myeloablative conditioning regimen in adolescent and young adult patients with hematologic malignancies: a single institute analysis. Leuk Res 2011; 36:128-31. [PMID: 21982638 DOI: 10.1016/j.leukres.2011.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/05/2011] [Accepted: 09/17/2011] [Indexed: 10/17/2022]
Abstract
We report the results of unrelated cord blood transplantation (CBT) after myeloablative conditioning regimen in 16 patients with hematologic malignancies from 15 to 20 years old. The median times of myeloid and platelet engraftment were 21 and 38 days, respectively. The cumulative incidences of acute graft-vs-host disease (GVHD) was 62.0%, all of which were grade I or II, and that of extensive-type chronic GVHD was 12.5%. The probabilities of overall and disease-free survival at 3 years were 68.2% and 48.6%, respectively, comparable to adult or childhood cases. Adolescents and young adult patients with hematologic malignancies who have no HLA-matched adult donors could be considered as candidates for CBT.
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Affiliation(s)
- Yasuhiro Ebihara
- Department of Pediatric Hematology/Oncology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
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28
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Tsuda M, Ebihara Y, Mochizuki S, Uchimaru K, Tojo A, Tsuji K. Reduced dose chemotherapy for acute promyelocytic leukaemia with adult Down syndrome. Br J Haematol 2011; 155:130-2. [DOI: 10.1111/j.1365-2141.2011.08655.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Takano M, Sugano N, Mochizuki S, Koshi RN, Narukawa TS, Sawamoto Y, Ito K. Hepatocytes produce tumor necrosis factor-α and interleukin-6 in response to Porphyromonas gingivalis. J Periodontal Res 2011; 47:89-94. [PMID: 21895661 DOI: 10.1111/j.1600-0765.2011.01408.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVE The liver plays a major role in clearing systemic bacterial infections. In addition, inflammatory cytokines produced in the liver play a critical role in systemic cytokine levels. The aim of this study was to investigate the production of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) by hepatocytes in response to periodontal pathogens. MATERIAL AND METHODS The mouse hepatic carcinoma cell line Hepa-1.6 and the mouse macrophage-like cell line RAW 264 were co-cultured in Transwell insert plates. Cells were stimulated with bacterial extracts prepared from Porphyromonas gingivalis and the induction of TNF-α and IL-6 was measured using real-time PCR and ELISA. RESULTS After stimulation with bacteria, the induction of TNF-α and IL-6 was observed in RAW 264 cells and Hepa-1.6 cells. Significant reduction of TNF-α mRNA expression in Hepa-1.6 cells was observed after treatment with antibody to TNF-α. CONCLUSION The results obtained in the present study show that P. gingivalis extract induces TNF-α and IL-6 in an in vitro liver model and that macrophage-derived TNF-α mediates the induction of TNF-α in hepatocytes.
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Affiliation(s)
- M Takano
- Nihon University Graduate School of Dentistry, Tokyo, Japan Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan
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Shiraishi Y, Sugai TK, Tanaka A, Yoshizawa M, Yambe T, Yamada A, Omran MH, Shiga T, Kitano T, Kamiya K, Mochizuki S, Miura H, Homma D, Yamagishi M. Structural design of a newly developed pediatric circulatory assist device for Fontan circulation by using shape memory alloy fiber. Annu Int Conf IEEE Eng Med Biol Soc 2011; 2011:8353-8355. [PMID: 22256284 DOI: 10.1109/iembs.2011.6092060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Total cavopulmonary connection (TCPC) is commonly applied for the surgical treatment of congenital heart disease such as single ventricle in pediatric patients. Patients with no ventricle in pulmonary circulation are treated along with Fontan algorithm, in which the systemic venous return is diverted directly to the pulmonary artery without passing through subpulmonary ventricle. In order to promote the pulmonary circulation after Fontan procedure, we developed a newly designed pulmonary circulatory assist device by using shape memory alloy fibers. We developed a pulmonary circulatory assist device as a non-blood contacting mechanical support system in pediatric patients with TCPC. The device has been designed to be installed like a cuff around the ePTFE TCPC conduit, which can contract from outside. We employed a covalent type functional anisotropic shape memory alloy fiber (Biometal, Toki Corporation, Tokyo Japan) as a servo actuator of the pulmonary circulatory assist device. The diameter of this fiber was 100 microns, and its contractile frequency was 2-3 Hz. Heat generation with electric current contracts these fibers and the conduit. The maximum contraction ratio of this fiber is about 7% in length. In order to extend its contractile ratio, we fabricated and installed mechanical structural units to control the length of fibers. In this study, we examined basic contractile functions of the device in the mock system. As a result, the internal pressure of the conduit increased to 63 mmHg by the mechanical contraction under the condition of 400 msec-current supply in the mock examination with the overflow tank of 10 mmHg loading.
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Affiliation(s)
- Y Shiraishi
- Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan.
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Mochizuki S, Yoshino T, Kojima T, Fuse N, Ikematsu H, Minashi K, Yano T, Tahara M, Kaneko K, Doi T, Koike K, Ohtsu A. Therapeutic Significance of a D-dimer Cut-off Level of >3 g/ml in Colorectal Cancer Patients Treated with Standard Chemotherapy plus Bevacizumab. Jpn J Clin Oncol 2010; 40:933-937. [DOI: 10.1093/jjco/hyq058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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Oshima K, Kikuchi A, Mochizuki S, Yamane M, Date H, Hanada R. Living-donor single lobe lung transplantation for bronchiolitis obliterans from mother to child following previous allogeneic hematopoietic stem cell transplantation from the same donor. Int J Hematol 2009; 90:540-542. [DOI: 10.1007/s12185-009-0436-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Revised: 09/07/2009] [Accepted: 09/14/2009] [Indexed: 11/29/2022]
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Oshima K, Kikuchi A, Mochizuki S, Toyama D, Uchisaka N, Yabe M, Hanada R. Fanconi anemia in infancy: report of hematopoietic stem cell transplantation to a 13-month-old patient. Int J Hematol 2009; 89:722-3. [DOI: 10.1007/s12185-009-0329-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2009] [Revised: 04/14/2009] [Accepted: 04/20/2009] [Indexed: 10/20/2022]
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Shigemoto N, Nakao T, Nakagawa H, Mochizuki S. [Antibiotic-resistant infectious thoracoabdominal aortic aneurysm; report of a case]. Kyobu Geka 2009; 62:333-335. [PMID: 19348220] [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: 05/27/2023]
Abstract
A 76-year-old female presented with constipation and anorexia Computed tomography (CT) revealed a saccular aneurysm (35 mm in diameter) directly over the root of the celiac artery, and she was referred to our department and was admitted. Klebsiella pneumoniae was detected in blood culture. Although antibiotics were administered, the inflammatory response was not improved. On day 8 after hospitalization, CT revealed the aneurysm increased. Therefore, surgery was performed. Aneurysm was observed adjacent to the celiac artery. The excised aorta included the descending thoracic aorta and the superior mesenteric artery, and was replaced with a rifampicin-soaked Vasctec Gelweave 24 mm vascular graft with branches. After hemostasis, omental implantation was performed around the vascular graft. Before surgery, sufficient antibiotics administration is desirable to bring the infection under control. However, if infection is uncontrollable with progressive enlargement of the aneurysm, as in this case, surgery is unavoidable. A combination of treatments was successful.
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Affiliation(s)
- Norifumi Shigemoto
- Department of Cardiovascular Surgery, Hiroshima General Hospital, Hatsukaichi, Japan
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Yatabe T, Mochizuki S, Takizawa M, Chijiiwa M, Okada A, Kimura T, Fujita Y, Matsumoto H, Toyama Y, Okada Y. Hyaluronan inhibits expression of ADAMTS4 (aggrecanase-1) in human osteoarthritic chondrocytes. Ann Rheum Dis 2008; 68:1051-8. [PMID: 18662930 PMCID: PMC2674548 DOI: 10.1136/ard.2007.086884] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Background: Intra-articular injection of hyaluronan (HA) has been suggested to have a disease-modifying effect in osteoarthritis, but little is known about the possible mechanisms. Objective: To investigate the effects of HA species of different molecular mass, including 800 kDa (HA800) and 2700 kDa (HA2700), on the expression of aggrecanases (ie, ADAMTS species), which play a key role in aggrecan degradation. Methods: The effects of HA species on the expression of ADAMTS1, 4, 5, 8, 9 and 15 in interleukin 1α (IL1α)-stimulated osteoarthritic chondrocytes were studied by reverse transcription PCR and real-time PCR. Expression of ADAMTS4 protein and aggrecanase activity and signal transduction pathways of IL1, CD44 and intracellular adhesion molecule 1 (ICAM1) were examined by immunoblotting. Results: IL1α treatment of chondrocytes induced ADAMTS4, and HA800 and HA2700 significantly decreased IL1α-induced expression of ADAMTS4 mRNA and protein. IL1α-stimulated aggrecanase activity in osteoarthritic chondrocytes was reduced by treatment with HA2700 or transfection of small interfering RNA for ADAMTS4. A similar result was obtained when HA2700 was added to explant cultures of osteoarthritic cartilage. HA2700 neither directly inhibited nor bound to ADAMTS4. Downregulation of ADAMTS4 expression by HA2700 was attenuated by treatment of IL1α-treated chondrocytes with antibodies to CD44 and/or ICAM1. The increased phosphorylation of IL1 receptor-associated kinase-1 and extracellular signal-regulated protein kinase1/2 induced by the IL1α treatment was downregulated by enhanced IRAK-M expression after HA2700 treatment. Conclusion: These data suggest that HA2700 suppresses aggrecan degradation by downregulating IL1α-induced ADAMTS4 expression through the CD44 and ICAM1 signalling pathways in osteoarthritic chondrocytes.
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Affiliation(s)
- T Yatabe
- Department of Pathology, Keio University, Tokyo, Japan
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36
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Akishita M, Mochizuki S, Yamada Y, Iijima K, Eto M, Ouchi Y. ABDOMINAL ADIPOSITY ACCOUNTS FOR THE ASSOCIATION OF ANDROGEN DEFICIENCY WITH METABOLIC SYNDROME IN MIDDLE-AGED JAPANESE MEN. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70969-3] [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: 11/15/2022]
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Shigemoto N, Nakao T, Kawaue Y, Mochizuki S. [Total aortic arch replacement for ruptured aortic arch aneurysm in a 93-year-old woman]. Kyobu Geka 2007; 60:895-8. [PMID: 17877007] [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: 05/17/2023]
Abstract
Semi-emergency total aortic arch replacement was performed in a 93-year-old woman with rupture of a true saccular aneurysm at the distal aortic arch. The patient had lived by herself before surgery. She was successfully treated and showed no post-operative cerebral complications. Total aortic arch replacement must be carefully planned, because this surgery is highly invasive and is associated with a high rate of complications. This surgery is sometimes inevitably performed as a life-saving procedure in very old patients. The surgical outcome however, is less favorable. Although we used the "Eaves" technique during surgery to decrease post-operative bleeding, the surgical invasiveness itself was not reduced. Further effort is needed to develop innovative procedures.
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Affiliation(s)
- N Shigemoto
- Department of Cardiovascular Surgery, Hiroshima General Hospital, Hatsuka-ichi, Japan
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Tribulova N, Seki S, Kaplan P, Babusikova E, Knezl V, Mochizuki S, Manoach M. Crucial role of Heart cell Ca2+ handling in initiation, sustaining and termination of lethal arrhythmias. J Mol Cell Cardiol 2007. [DOI: 10.1016/j.yjmcc.2007.03.019] [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: 11/29/2022]
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Ikewaki K, Nakada Y, Inoue Y, Mochizuki S. PO2-26 DELAYED IN VIVO CATABOLISM OF SMALL DENSE LDL: A STABLE ISOTOPE STUDY. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71036-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kawashima H, Hasegawa D, Nakamura M, Mochizuki S, Kashiwagi Y, Nishimata S, Sato S, Sasamoto M, Takekuma K, Hoshika A, Nunoi H. Hazards of early BCG vaccination: BCGitis in a patient with chronic granulomatous disease. Pediatr Int 2007; 49:418-9. [PMID: 17532851 DOI: 10.1111/j.1442-200x.2007.02383.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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41
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Kato M, Kikuchi A, Oshima K, Yamamoto S, Mochizuki S, Arai K, Hanada R. [Pediatric acute lymphoblastic leukemia initially presenting with bone marrow necrosis]. Rinsho Ketsueki 2007; 48:140-3. [PMID: 17370642] [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: 05/14/2023]
Abstract
We report on a case of pediatric acute lymphoblastic leukemia presenting with massive bone marrow necrosis. A 4-year-old boy complained of fever and leg pain. Laboratory data revealed pancytopenia, but bone marrow examination showed only necrotic materials. About one month later, repeated bone marrow examination showed leukemic cells and the necrotic marrow had disappeared. The patient was treated with standard chemotherapy and was successfully induced to complete remission. Patients with massive bone marrow necrosis should undergo bone marrow examination repeatedly to make the correct diagnosis.
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Affiliation(s)
- Motohiro Kato
- Saitama Children's Medical Center, The Department of Hematology/Oncology
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Takaki T, Kobayashi M, Okubo K, Takahashi N, Okamatsu Y, Mochizuki S, Yamamoto M, Hasegawa K. Interferon-γ inhibits collagen phagocytosis in human fibroblasts by inducing subcortical actin assembly and reducing ability of β1 integrin to bind to collagen. Inflamm Res 2006; 55:534-42. [PMID: 17221168 DOI: 10.1007/s00011-006-5088-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE We investigated the possible roles of interferon-gamma (IFN-gamma) in modulation of extracellular and intracellular routes of collagen digestion by human fibroblasts. METHODS Human gingival fibroblasts were treated with IFN-gamma, after which matrix metalloproteinase-1 (MMP-1) activation was determined. Following the IFN-gamma treatment, cells were further incubated with either activating antibody for beta1 integrin or actin monomer-sequestering agent latrunculin B before incubation with collagen-coated fluorescent beads. Thereafter, the binding and internalization of the beads were assessed. RESULTS IFN-gamma had no significant effect on MMP-1 activation, however, it reduced the binding of collagen-coated beads in the minimum affinity range and, subsequently, internalization of the beads. The inhibitory effects of IFN-gamma were partially reversed by adding either the beta1 integrin activating antibody or latrunculin B. CONCLUSIONS Although IFN-gamma does not appreciably moderate the extracellular route of collagen digestion by human fibroblasts, the reduced level of collagen phagocytosis by IFN-gamma in the cells may contribute to fibrosis in inflamed connective tissues. Further, IFN-gamma may decrease the binding of collagen and following phagocytosis in cells by inducing a subcortical actin assembly and reducing the ability of beta1 integrin to bind to collagen.
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Affiliation(s)
- T Takaki
- Department of Periodontology, Showa University Dental School, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo 145-8515, Japan
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Date T, Yamane T, Inada K, Matsuo S, Miyanaga S, Sugimoto K, Shibayama K, Taniguchi I, Mochizuki S. Plasma brain natriuretic peptide concentrations in patients undergoing pulmonary vein isolation. Heart 2006; 92:1623-7. [PMID: 16740921 PMCID: PMC1861210 DOI: 10.1136/hrt.2005.083022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE To examine whether raised plasma brain natriuretic peptide (BNP) concentrations decrease after successful pulmonary vein isolation (PVI) in patients with atrial fibrillation (AF). METHODS 53 patients (mean age 53 years) with drug-refractory, paroxysmal lone AF underwent segmental ostial PVI. Blood samples were collected before and after PVI. BNP concentrations were determined by immunoassays. RESULTS Median plasma BNP concentrations were significantly higher in patients with lone AF than in controls (patients with supraventricular tachyarrhythmias, n = 21) (64.6 (71.9) v 13.9 (7.8) pg/ml, p < 0.01). AF recurred in 21 patients after the initial PVI procedure (recurrent AF group), and the others were free from AF without antiarrhythmic drugs (non-recurrent AF group). BNP concentrations were significantly decreased by PVI in the non-recurrent AF group (38.9 (39.1) to 18.3 (16.1) pg/ml, p < 0.01) but not in the recurrent AF group. CONCLUSIONS Raised plasma BNP concentrations decreased after successful segmental ostial PVI in patients with AF.
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Affiliation(s)
- T Date
- Division of Cardiology, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan.
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Suzukawa K, Mochizuki S, Osaka H. Effect of the attack angle on the roll and trailing vortex structures in an agitated vessel with a paddle impeller. Chem Eng Sci 2006. [DOI: 10.1016/j.ces.2005.10.063] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yamaoka I, Doi M, Nakayama M, Ozeki A, Mochizuki S, Sugahara K, Yoshizawa F. Intravenous administration of amino acids during anesthesia stimulates muscle protein synthesis and heat accumulation in the body. Am J Physiol Endocrinol Metab 2006; 290:E882-8. [PMID: 16352675 DOI: 10.1152/ajpendo.00333.2005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present study was conducted to determine the contribution of muscle protein synthesis to the prevention of anesthesia-induced hypothermia by intravenous administration of an amino acid (AA) mixture. We examined the changes of intraperitoneal temperature (Tcore) and the rates of protein synthesis (K(s)) and the phosphorylation states of translation initiation regulators and their upstream signaling components in skeletal muscle in conscious (Nor) or propofol-anesthetized (Ane) rats after a 3-h intravenous administration of a balanced AA mixture or saline (Sal). Compared with Sal administration, the AA mixture administration markedly attenuated the decrease in Tcore in rats during anesthesia, whereas Tcore in the Nor-AA group became slightly elevated during treatment. Stimulation of muscle protein synthesis resulting from AA administration was observed in each case, although K(s) remained lower in the Ane-AA group than in the Nor-Sal group. AA administration during anesthesia significantly increased insulin concentrations to levels approximately 6-fold greater than in the Nor-AA group and enhanced phosphorylation of eukaryotic initiation factor 4E-binding protein-1 (4E-BP1) and ribosomal protein S6 protein kinase relative to all other groups and treatments. The alterations in the Ane-AA group were accompanied by hyperphosphorylation of protein kinase B and the mammalian target of rapamycin (mTOR). These results suggest that administration of an AA mixture during anesthesia stimulates muscle protein synthesis via insulin-mTOR-dependent activation of translation initiation regulators caused by markedly elevated insulin and, thereby, facilitates thermal accumulation in the body.
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Affiliation(s)
- Ippei Yamaoka
- Division of Pharmacology, Drug Safety and Metabolism, Otsuka Pharmaceutical Factory, Naruto, Tokushima 772-8601, Japan.
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Anzawa R, Ishikawa S, Tanaka Y, Okazaki F, Mochizuki S. Increased AAI mode pacing threshold after termination of atrial fibrillation by acute administration of disopyramide phosphate. ACTA ACUST UNITED AC 2006; 8:345-8. [PMID: 16635993 DOI: 10.1093/europace/eul020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
AIMS We studied changes in atrial pacing threshold after termination of atrial fibrillation (AF) by acute administration of disopyramide phosphate (DP) to elucidate the suitable setting for atrial pacing output before AF termination. METHODS AND RESULTS Four patients with sick sinus syndrome implanted with AAI mode pacemakers were examined. Disopyramide phosphate (2 mg/kg body weight) was injected intravenously for termination of a total of eight AF episodes. The maximal pacing threshold after AF termination (5.2+/-0.8 V at 0.45 ms) was significantly higher than that at baseline (1.3+/-0.2 V at 0.45 ms; P<0.01) and the average increment was 433+/-68%. During a period free from AF, an acute administration of DP did not increase the atrial pacing threshold and serum disopyramide levels were not toxic. CONCLUSION The increased atrial pacing threshold observed after AF termination cannot be explained by the action of DP alone. However, our results suggest that atrial pacing output should be set at the maximum value before DP is administered to induce AF termination in patients with AAI pacemaker-dependent bradyarrhythmias.
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Affiliation(s)
- R Anzawa
- Division of Cardiology, Department of Internal Medicine, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo 105-8461, Japan.
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Yamaoka I, Doi M, Nakayama M, Ozeki A, Mochizuki S, Sugahara K, Yoshizawa F. Intravenous administration of amino acids during anesthesia stimulates muscle protein synthesis and heat accumulation in the body. FASEB J 2006. [DOI: 10.1096/fasebj.20.4.a161] [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: 11/11/2022]
Affiliation(s)
- Ippei Yamaoka
- Division of PharmacologyDrug Safety and MetabolismOtsuka Pharmaceutical Factory Inc.115 Muya‐choNaruto772‐8601Japan
| | - Masako Doi
- Division of PharmacologyDrug Safety and MetabolismOtsuka Pharmaceutical Factory Inc.115 Muya‐choNaruto772‐8601Japan
| | - Mitsuo Nakayama
- Division of PharmacologyDrug Safety and MetabolismOtsuka Pharmaceutical Factory Inc.115 Muya‐choNaruto772‐8601Japan
| | - Akane Ozeki
- Department of Animal ScienceUtsunomiya University350 MinemachiUtsunomiya321‐8505Japan
| | - Shinji Mochizuki
- Department of Animal ScienceUtsunomiya University350 MinemachiUtsunomiya321‐8505Japan
| | - Kunio Sugahara
- Department of Animal ScienceUtsunomiya University350 MinemachiUtsunomiya321‐8505Japan
| | - Fumiaki Yoshizawa
- Department of Animal ScienceUtsunomiya University350 MinemachiUtsunomiya321‐8505Japan
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Ikewaki K, Nakada Y, Wakikawa T, Inoue Y, Mochizuki S. Th-P16:392 Effects of pitavastatin on lipoprotein metabolism in hypercholesterolemic patients: A stable isotope study. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)82350-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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49
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Hashimoto S, Furukawa T, Mochizuki S, Ogawa N, Otani H, Imamura H, Iwasaka T. Measurement of dynamic deformability of erythrocyte with counter rotating rheoscope. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)85581-8] [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: 10/24/2022]
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50
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Nakada Y, Date T, Mochizuki S. Biventricular involvement in cardiac sarcoidosis. Heart 2005; 91:1388. [PMID: 16230435 PMCID: PMC1769165 DOI: 10.1136/hrt.2005.064089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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