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Manome-Zenke Y, Denda-Nagai K, Murakami R, Noji M, Tsuneda N, Ishii-Schrade KB, Kanomata N, Arai S, Irimura T, Ikeda S. Possible Involvement of Antigen-Presenting Cells Expressing the Macrophage Galactose-Type C-Type Lectin in Inflammatory Skin Diseases. J Invest Dermatol 2023; 143:1834-1838.e10. [PMID: 36963610 DOI: 10.1016/j.jid.2023.03.1654] [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: 11/30/2022] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 03/26/2023]
Affiliation(s)
- Yukari Manome-Zenke
- Department of Dermatology, St. Luke's International Hospital, Tokyo, Japan; Department of Dermatology and Allergology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kaori Denda-Nagai
- Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan.
| | - Ryuichi Murakami
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Miki Noji
- Division of Glycobiologics, JARIHES, Juntendo University, Tokyo, Japan
| | - Naoto Tsuneda
- Department of Pathology, St. Luke's International Hospital, Tokyo, Japan
| | | | - Naoki Kanomata
- Department of Pathology, St. Luke's International Hospital, Tokyo, Japan
| | - Satoru Arai
- Department of Dermatology, St. Luke's International Hospital, Tokyo, Japan
| | - Tatsuro Irimura
- Division of Glycobiologics, JARIHES, Juntendo University, Tokyo, Japan
| | - Shigaku Ikeda
- Department of Dermatology and Allergology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
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2
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Fujioka M, Fukui K, Yoshino K, Noguchi M, Murakami R. Salvage of Ear Framework Exposure Following Autologous Microtia Reconstruction: Repair Strategy for Each Location of Exposure. Cleft Palate Craniofac J 2023; 60:1172-1175. [PMID: 35450440 DOI: 10.1177/10556656221095389] [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] [Indexed: 11/16/2022] Open
Abstract
One of the most common complications of total auricular reconstruction is exposure of the ear framework. Various reconstruction methods have been reported depending on the location and size of exposed cartilage. This report describes a safe reconstruction method for each exposed part of the grafted ear framework. From January 2019 to August 2021, 2 cases (4 areas) of framework exposure were observed following autologous microtia reconstruction. The first case developed 2 small areas of skin necrosis on the anterior helix and lower antihelix to concha. The former was reconstructed with a temporal fascia flap and the latter with a local transposition flap. The second case also developed 2 small areas of skin necrosis on the posterior helix and lower antihelix to concha. The former was sutured directly and the latter with a local transposition flap. However, both wounds recurred due to flap necrosis and the cartilage was exposed again. The 3rd operation was performed by covering both wounds with a posterior auricular turnover flap and skin graft. In both cases, the exposed framework was completely covered with the flaps, and the reconstructed ears showed well-defined convolutions. Covering exposed cartilage with a local flap with a random pattern of blood circulation is convenient because no additional skin grafts are required. However, the blood circulation of the flaps is inadequate when an elongated flap is required; consequently, flap necrosis may occur. On the other hand, a temporal fascia flap and posterior auricular flap, which have axillary pattern blood circulation, are considered to be safer. We believe that it is safe to use a temporal fascia flap for cartilage exposure in the upper half of the auricle, and a posterior auricular turnover flap for the lower half.
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Affiliation(s)
- Masaki Fujioka
- Department of Plastic and Reconstructive Surgery, Nagasaki University, Nagasaki, Japan
- Department of Plastic and Reconstructive Surgery, Clinical Research Center, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
| | - Kiyoko Fukui
- Department of Plastic and Reconstructive Surgery, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
| | - Kentaro Yoshino
- Department of Plastic and Reconstructive Surgery, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
| | - Miho Noguchi
- Department of Plastic and Reconstructive Surgery, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
| | - Ryuichi Murakami
- Department of Plastic and Reconstructive Surgery, Yamaguchi Prefectural Grand Medical Center, Hofu, Japan
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3
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Nakajima A, Murakami R, Hori S. Functional Analysis of Foxp3 and Its Mutants by Retroviral Transduction of Murine Primary CD4 + T Cells. Methods Mol Biol 2023; 2559:79-94. [PMID: 36180628 DOI: 10.1007/978-1-0716-2647-4_7] [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] [Indexed: 06/16/2023]
Abstract
The transcription factor Foxp3/FOXP3 orchestrates regulatory T (Treg) cell development and function by interacting with numerous target genes and partner proteins. Functional analysis of naturally occurring or engineered Foxp3/FOXP3 mutations has provided important insights into how the complex Foxp3/FOXP3-centered molecular network operates. Here, we describe detailed protocols for retroviral transduction of murine primary conventional CD4+ T cells to determine the impacts of Foxp3 mutations on the Treg-cell-like phenotype and function conferred by Foxp3.
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Affiliation(s)
- Akira Nakajima
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryuichi Murakami
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Shohei Hori
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.
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Abstract
Regulatory T (Treg) cells that express the lineage-defining transcription factor Foxp3 play a pivotal role in establishing and maintaining immune and tissue homeostasis. Foxp3 serves as a highly connected "hub", interacting with numerous genomic sites and partner proteins, in the molecular network that orchestrates multiple facets of Treg cell differentiation and function. Treg cells are distributed throughout the body from lymphoid tissues to most non-lymphoid tissues, where they exert anti-inflammatory and protective functions appropriate for the tissue and immune environment. They are thus capable of adapting to diverse and changing environments by dynamically integrating extrinsic cues with the intrinsic molecular network. In this review, we discuss recent advances in our understanding of the cell-intrinsic and -extrinsic mechanisms underlying the adaptability of Treg cells and we propose a crucial role for the Foxp3-centered molecular network, which operates in a multimodal and adaptive manner in response to environmental signals.
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Affiliation(s)
- Shohei Hori
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryuichi Murakami
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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5
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Nagao S, Kumamoto K, Kugita M, Yoshimura A, Murakami R, Fujigaki H, Yamamoto Y, Maeda Y, Yamaguchi T, Takahashi K, Saito K, Yuzawa Y. POS-431 ALTERED REGULATION OF TRYPTOPHAN METABOLISM AND ARYL HYDROCARBON RECEPTOR DISTRIBUTION IN RODENT POLYCYSTIC KIDNEYS. Kidney Int Rep 2021. [DOI: 10.1016/j.ekir.2021.03.454] [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: 10/21/2022] Open
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6
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Murakami R, Matsuo N, Ueda K, Nakazawa M. Epidemiological and spatial factors for tuberculosis: a matched case-control study in Nagata, Japan. Int J Tuberc Lung Dis 2020; 23:181-186. [PMID: 30808450 DOI: 10.5588/ijtld.18.0369] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING AND OBJECTIVE Several studies have found a significant association between tuberculosis (TB) and spatial factors. We wished to determine the effect of host-related factors and spatial factors associated with an increased risk of TB, and to assess spatial clustering. DESIGN A hospital-based case-control study using medical records was conducted. A total of 103 age- and sex-matched TB patients (cases) and 299 patients without TB (controls) were recruited from January 2000 to December 2016 in a hospital in Nagata, Kobe, Japan. Logistic regression, kernel density estimation, Cross L function and a Poisson regression model were applied. RESULTS The epidemiological factors associated with TB were being a health care worker (OR 10.1) and lower serum albumin level (OR 0.5). Spatial analyses revealed TB to be positively associated with population density (risk ratio [RR] 32.1), the proportion of single households (RR -1.85) and persons aged 65 years (RR 2.65) and one spatial clustering. CONCLUSION Our findings could help in the identification of high TB risk individuals and districts.
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Affiliation(s)
- R Murakami
- Department of Public Health, Graduate School of Health Sciences, Kobe University, Hyogo
| | - N Matsuo
- Department of Internal Medicine, Kobe Kyodo Hospital, Hyogo, Japan
| | - K Ueda
- Department of Internal Medicine, Kobe Kyodo Hospital, Hyogo, Japan
| | - M Nakazawa
- Department of Public Health, Graduate School of Health Sciences, Kobe University, Hyogo
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7
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Do Lago Palacio Estrela M, Paiva MG, Ferreira RL, Gazola ASL, Pedreira PSC, Bermudez CWO, Murakami R, Pitombeira ECK, Oliveira AG, Lira SMC, Gomes MCC, Silveira GM, Wetten MP, Rotta TCA, Passarelli LCF. 1646 Complicated aortic prosthetic valve endocarditis. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.1036] [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
Introduction
Prosthetic valve endocarditis (PVE) occurs in 1 to 3% of cases at 1 year and 3 to 9% at 5 years postoperative (PO) with 40% mortality. Clinical complications, uncontrolled infection and agents such as staphylococci and fungi indicate the need for surgery. Recent trial with stable patients (26.7% PVE), oral antibiotic therapy (ATB) proved to be as effect as intravenous antibiotic. However, in complicated cases, prolonged clinical treatment still an exception.
Case Report
ANFJ, male, 45 years old, aortic valve replacement by mechanical prosthesis in 2015, was hospitalized in Jun/18 with right front-temporal-parietal cerebral hemorrhage and sub febrile for 1 week. Transthoracic echocardiogram (TTE) showed pseudoaneurysm of the mitral valve anterior leaflet with 4+ regurgitation and aortic metallic prosthesis without dysfunction, but transesophageal echocardiogram (TEE) disclosed periprosthetic abscess. Empirical ATB was started until blood cultures yielded S. Agalactiae. After 3 weeks with ceftriaxone, patient persisted sub febrile, high CRP, pulmonary congestion and a new TEE showed mobile aortic prosthesis, fistula and periaortic regurgitation 4+. Urgent surgery was carried out at the same day for abscess drainage and replacement of prosthetic valve by biological aortic prosthesis but without mitral valve approach. Immediate PO underwent with hemodynamic instability, prolonged mechanical ventilation, pleural empyema, acute renal failure requiring dialysis and persistence of fever. Two weeks after surgery, TTE demonstrated new periprosthetic abscess with multiple collections along the ascending aorta. Reassessed by heart team and reoperation was contraindicated due to poor clinical conditions. Patient received parenteral broad-spectrum antibiotic evolving with clinical stabilization, normalization of inflammatory tests becoming afebrile. Aortic angiotomography in Aug/18 showed a periaortic collection of 3.0X2.0X1.9cm and contrast extravasation. New TEE in Aug/18 showed periprosthetic abscess and discrete aortic-right atrium fistula (2+). Maintained ATB until D42, persisting afebrile, negative blood cultures, normal leucogram and CRP. Considered inoperable, he was discharged on Sep/18. After 30 days, patient was stable, negative blood cultures however with worsening ESR (2 -> 99mm/h) and CRP (0.5 -> 15mg/dl). He performed ETT and 18F-FDG PET/CT on Nov/18 with persistence of abscess, fistula and high increase 18F-FDG uptake. Heart team again opted for prolonged oral ATB with amoxicillin 3.0gr/day. Re-evaluated on Dec/18 with laboratory normalization and good clinical evolution until last appointment on April/19 under oral antibiotic.
Conclusion
Reoperation of PVE improves prognosis, however in some cases where surgical risk is prohibitive, prolonged ATB may be the only option to control infecction or as a bridge for eventual heart transplantation.
Abstract 1646 Figure.
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Affiliation(s)
| | - M G Paiva
- Hospital Nove de Julho, Sao Paulo, Brazil
| | | | | | | | | | - R Murakami
- Hospital Nove de Julho, Sao Paulo, Brazil
| | | | | | - S M C Lira
- Hospital Nove de Julho, Sao Paulo, Brazil
| | | | | | - M P Wetten
- Hospital Nove de Julho, Sao Paulo, Brazil
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Arata Y, Watanabe A, Motosugi R, Murakami R, Goto T, Hori S, Hirayama S, Hamazaki J, Murata S. Defective induction of the proteasome associated with T-cell receptor signaling underlies T-cell senescence. Genes Cells 2019; 24:801-813. [PMID: 31621149 DOI: 10.1111/gtc.12728] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 12/17/2022]
Abstract
The proteasome degradation machinery is essential for a variety of cellular processes including senescence and T-cell immunity. Decreased proteasome activity is associated with the aging process; however, the regulation of the proteasome in CD4+ T cells in relation to aging is unclear. Here, we show that defects in the induction of the proteasome in CD4+ T cells upon T-cell receptor (TCR) stimulation underlie T-cell senescence. Proteasome dysfunction promotes senescence-associated phenotypes, including defective proliferation, cytokine production and increased levels of PD-1+ CD44High CD4+ T cells. Proteasome induction by TCR signaling via MEK-, IKK- and calcineurin-dependent pathways is attenuated with age and decreased in PD-1+ CD44High CD4+ T cells, the proportion of which increases with age. Our results indicate that defective induction of the proteasome is a hallmark of CD4+ T-cell senescence.
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Affiliation(s)
- Yoshiyuki Arata
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Ayaka Watanabe
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryo Motosugi
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Ryuichi Murakami
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Tsuyoshi Goto
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Shohei Hori
- Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Shoshiro Hirayama
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Jun Hamazaki
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Shigeo Murata
- Laboratory of Protein Metabolism, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
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9
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Murakami R, Toya R, Sakata J, Hirosue A, Kawahara K, Yoshida R, Nakayama H. Nodal Metastasis in Oral Squamous Cell Carcinoma: Predictive Impact of MRI-Derived Depth of Invasion According to the 8th Edition American Joint Committee on Cancer Staging System. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1597] [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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10
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So M, Miyamoto T, Murakami R, Kawahara S, Abiko K, Yamaguchi K, Horie A, Hamanishi J, Kondoh E, Baba T, Mandai M. The efficacy of secondary debulking surgery for recurrent ovarian, tubal and peritoneal cancer in low risk scores in the Tian model. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.597] [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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11
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Abiko K, Horikawa N, Murakami R, Yamaguchi K, Hamanishi J, Baba T, Mandai M. GM-CSF increases myeloid-derived suppressor cells infiltration after anti-VEGF therapy in ovarian cancer. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.200] [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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12
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Yamamoto M, Aochi S, Suzuki C, Nakamura S, Murakami R, Ogawa Y, Takahashi H. A case with good response to belimumab for lupus nephritis complicated by IgG4-related disease. Lupus 2019; 28:786-789. [DOI: 10.1177/0961203319840430] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Immunoglobulin (Ig)G4-related disease (IgG4-RD) is an unusual complication of systemic lupus erythematosus (SLE). We report a case in which belimumab proved efficacious for not only SLE, but also IgG4-RD. A 58-year-old Japanese woman had suffered from photodermatosis and erythema on the limbs for 20 years. She presented in slight fever and fatigue since 2016. Laboratory data showed hypergammaglobulinemia, proteinuria and positive results for anti-nuclear antibody and anti-double-stranded DNA antibody. Furthermore, elevated levels of serum IgG4 were detected. Contrast-enhanced computed tomography disclosed multiple areas of poor enhancement in the kidneys. The patient was diagnosed with lupus nephritis and IgG4-RD from renal biopsy. Treatment was started with prednisolone at 40 mg/day and mycophenolate mofetil. Proteinuria and serological findings improved initially, but tapering the dose of glucocorticoid proved difficult. After treatment was started with belimumab, clinical symptoms and proteinuria resolved completely. The dose of glucocorticoid was successfully tapered and serum concentration of IgG4 fell further. This appears to represent the first report of a case in which both SLE and IgG4-RD were effectively treated using belimumab.
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Affiliation(s)
- M Yamamoto
- Department of Rheumatology and Clinical Immunology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - S Aochi
- Department of Internal Medicine, Japan Self Defense Forces Sapporo Hospital, Sapporo, Japan
| | - C Suzuki
- Department of Rheumatology and Clinical Immunology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - S Nakamura
- Department of Rheumatology, Hokkaido Orthopedic Memorial Hospital, Sapporo, Japan
| | - R Murakami
- Department of Rheumatology, JR Sapporo Hospital, Sapporo, Japan
| | - Y Ogawa
- Hokkaido Renal Pathology Center, Sapporo, Japan
| | - H Takahashi
- Department of Rheumatology and Clinical Immunology, Sapporo Medical University School of Medicine, Sapporo, Japan
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13
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Mursawa H, Hatakeyama S, Yamamoto H, Tanaka Y, Soma O, Matsumoto T, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Saitoh H, Suzuki T, Narumi S, Ohyama C. Slow Progression of Aortic Calcification Is a Potential Benefit of Pre-emptive Kidney Transplantation. Transplant Proc 2018; 50:145-149. [PMID: 29407299 DOI: 10.1016/j.transproceed.2017.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/05/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE Pre-emptive kidney transplantation (PKT) is expected to improve graft and cardiovascular event-free survival compared with standard kidney transplantation. Aortic calcification is reported to be closely associated with renal dysfunction and cardiovascular events; however, its implication in PKT recipients remains incompletely explored. This aim of this study was to evaluate whether PKT confers a protective effect on aortic calcification, renal function, graft survival, and cardiovascular event-free survival. METHODS One hundred adult patients who underwent renal transplantation between January 1996 and March 2016 at Hirosaki University Hospital and Oyokyo Kidney Research Institute were included. Among them, 19 underwent PKT and 81 patients underwent pretransplant dialysis. We retrospectively compared pretransplant and post-transplant aortic calcification index (ACI), renal function (estimated glomerular filtration rate [eGFR]), and graft and cardiovascular event-free survivals between the 2 groups. RESULTS The median age of this cohort was 45 years. Preoperative ACI was significantly lower in PKT recipients. There were no significant differences between the 2 groups regarding postoperative eGFR, graft survival, and cardiovascular event-free survival. However, the ACI progression rate (ΔACI/y) was significantly lower in PKT recipients than in those who underwent pretransplant dialysis. Higher ACI was significantly associated with poor cardiovascular event-free survival. CONCLUSIONS PKT is beneficial in that it contributes to the slow progression of after transplantation. Although we could not observe significant differences in graft and cardiovascular event-free survivals between the 2 groups, slow progression of aortic calcification showed a potential to decrease cardiovascular events in PKT recipients during long-term follow-up.
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Affiliation(s)
- H Mursawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Tanaka
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - O Soma
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Matsumoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Departments of Cardiology, Respiratory Medicine, and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Departments of Cardiology, Respiratory Medicine, and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - T Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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14
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Kido K, Hatakeyama S, Hamano I, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Tomita H, Suzuki T, Narumi S, Ohyama C. Partial Cystectomy of Paraganglioma of the Urinary Bladder Before Living Kidney Transplantation: Case Report. Transplant Proc 2018; 50:898-901. [PMID: 29661460 DOI: 10.1016/j.transproceed.2018.01.015] [Citation(s) in RCA: 3] [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: 01/15/2018] [Accepted: 01/29/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Paraganglioma (extra-adrenal pheochromocytoma) of the bladder is a very rare disease, accounting for 0.06% of all bladder tumors. Optimal management of bladder paraganglioma before kidney transplantation is unknown. We report a case of partial cystectomy for urinary bladder paraganglioma before living kidney transplantation. CASE PRESENTATION A 59-year-old man with a 27-year history of hemodialysis was referred to our department for further examination of a bladder tumor detected during pre-transplantation testing. Cystoscopy revealed a submucosal tumor on the right side of the bladder. The patient experienced a hypertensive crisis during transurethral resection of the bladder tumor. Endocrinologic and pathologic examinations confirmed the diagnosis of paraganglioma in the urinary bladder. A partial cystectomy was performed before kidney transplantation. Nine months after partial cystectomy, the patient underwent AB0-incompatible living kidney transplantation from his spouse. No disease recurrence or graft rejection was observed 12 months after the transplantation. CONCLUSIONS To our knowledge, this is the 1st report on the management of paraganglioma in the urinary bladder before living kidney transplantation. Kidney transplantation after partial cystectomy is an option that may be considered in patients with paraganglioma of the urinary bladder, with careful observations of bladder function and vesicoureteral reflux to the grafts.
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Affiliation(s)
- K Kido
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - I Hamano
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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15
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Toya R, Saito T, Shiraishi S, Kai Y, Murakami R, Matsuyama T, Watakabe T, Sakamoto F, Tsuda N, Shimohigashi Y, Yamashita Y, Oya N. EP-2093: Dose–function histogram evaluation using 99mTc-GSA SPECT/CT images for SBRT planning for HCC. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32402-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hamano I, Hatakeyama S, Yamamoto H, Fujita T, Murakami R, Shimada M, Imai A, Yoneyama T, Yoneyama T, Hashimoto Y, Koie T, Narumi S, Saitoh H, Suzuki T, Tomita H, Ohyama C. Condyloma Acuminata of the Urethra in a Male Renal Transplant Recipient: A Case Report. Transplant Proc 2018; 50:2553-2557. [PMID: 30316397 DOI: 10.1016/j.transproceed.2018.02.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 02/19/2018] [Indexed: 12/23/2022]
Abstract
BACKGROUND Condyloma acuminatum (CA) is a common sexually transmitted disease associated with human papilloma virus (HPV). CA occurring in the urethra is rare and has not been reported in male renal transplant recipients. In addition, despite immunosuppressive conditions and increased risk of HPV-related malignant neoplasms in transplant recipients, HPV testing in male transplant recipients has been uncommon. Here we report a case of urethral CA in a male deceased donor renal transplantation recipient and discuss the importance of HPV testing in male transplant recipients. CASE PRESENTATION A 33-year-old male deceased donor renal transplant recipient presented with miction pain 5 years after the transplantation. He reported repeated urinary tract infections with no sexual contact since the renal transplantation. Multiple papillary tumors in his penile urethra were detected by cystoscopy, and a biopsy sample was pathologically diagnosed with CA. Transurethral tumor resection was performed, and the tumors were completely resected. Additional HPV risk type screening with a urethral smear sample showed the prevalence of low-risk HPV. Although tacrolimus was switched to everolimus and imiquimod cream was administered, the tumors recurred 6 months after the resection, and a second resection was performed. No further recurrence has been observed for 1 year to date. CONCLUSION As the urethral CA was possibly related to immunosuppressive conditions and a risk for HPV-related malignant neoplasm, the case required careful diagnosis, including HPV risk type. The methodology of sampling for HPV testing in men has not been established. This case suggests the necessity for further discussion about HPV testing in male transplant recipients.
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Affiliation(s)
- I Hamano
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - M Shimada
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - H Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - T Suzuki
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - H Tomita
- Department of Cardiology and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Akita S, Hayashida K, Yoshimoto H, Fujioka M, Senju C, Morooka S, Nishimura G, Mukae N, Kobayashi K, Anraku K, Murakami R, Hirano A, Oishi M, Ikenoya S, Amano N, Nakagawa H. Novel Application of Cultured Epithelial Autografts (CEA) with Expanded Mesh Skin Grafting Over an Artificial Dermis or Dermal Wound Bed Preparation. Int J Mol Sci 2017; 19:ijms19010057. [PMID: 29295606 PMCID: PMC5796007 DOI: 10.3390/ijms19010057] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/21/2017] [Accepted: 12/22/2017] [Indexed: 11/17/2022] Open
Abstract
Cultured epithelial autografts (CEA) with highly expanded mesh skin grafts were used for extensive adult burns covering more than 30% of the total body surface area. A prospective study on eight patients assessed subjective and objective findings up to a 12-month follow-up. The results of wound healing for over 1:6 mesh plus CEA, gap 1:6 mesh plus CEA, and 1:3 mesh were compared at 3, 6, and 12 months using extensibility, viscoelasticity, color, and transepidermal water loss by a generalized estimating equation (GEE) or generalized linear mixed model (GLMM). No significant differences were observed among the paired treatments at any time point. At 6 and 12 months, over 1:6 mesh plus CEA achieved significantly better expert evaluation scores by the Vancouver and Manchester Scar Scales (p < 0.01). Extended skin grafting plus CEA minimizes donor resources and the quality of scars is equal or similar to that with conventional low extended mesh slit-thickness skin grafting such as 1:3 mesh. A longitudinal analysis of scars may further clarify the molecular changes of scar formation and pathogenesis.
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Affiliation(s)
- Sadanori Akita
- Department of Plastic Surgery, Wound Repair and Regeneration, School of Medicine, Fukuoka University, Fukuoka 814-0180, Japan.
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan.
| | - Kenji Hayashida
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan.
- Division of Plastic and Reconstructive Surgery, Shimane University Hospital, Shimane 693-0021, Japan.
| | - Hiroshi Yoshimoto
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan.
| | - Masaki Fujioka
- Department of Plastic and Reconstructive Surgery, National Hospital Organization Nagasaki Medical Center, Nagasaki 856-8562, Japan.
| | - Chikako Senju
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan.
- Department of Plastic and Reconstructive Surgery, National Hospital Organization Nagasaki Medical Center, Nagasaki 856-8562, Japan.
| | - Shin Morooka
- Department of Plastic and Reconstructive Surgery, National Hospital Organization Nagasaki Medical Center, Nagasaki 856-8562, Japan.
| | - Gozo Nishimura
- Department of Plastic and Reconstructive Surgery, Fukuoka Tokushukai Hospital, Fukuoka 816-0864, Japan.
| | - Nobuhiko Mukae
- Department of Plastic and Reconstructive Surgery, Kitakyushu General Hospital, Kitakyushu 802-8517, Japan.
| | - Kazuo Kobayashi
- Department of Plastic and Reconstructive Surgery, Ehime Prefectural Central Hospital, Ehime 790-0024, Japan.
| | - Kuniaki Anraku
- Department of Plastic and Reconstructive Surgery, Sasebo City General Hospital, Sasebo 857-0056, Japan.
| | - Ryuichi Murakami
- Department of Plastic and Reconstructive Surgery, Yamaguchi Prefectural Grand Medical Center, Osaki 747-8511, Japan.
| | - Akiyoshi Hirano
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan.
| | - Masao Oishi
- Department of Plastic and Reconstructive Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan.
| | - Shintaro Ikenoya
- Department of Plastic and Reconstructive Surgery, Matsue Red Cross Hospital, Matsue 690-8506, Japan.
| | - Nobuyuki Amano
- Department of Plastic and Reconstructive Surgery, Yamaguchi Prefectural Grand Medical Center, Osaki 747-8511, Japan.
| | - Hiroshi Nakagawa
- Department of Plastic and Reconstructive Surgery, Ehime Prefectural Central Hospital, Ehime 790-0024, Japan.
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Toya R, Murakami R, Murakami D, Saito T, Matsuyama T, Baba Y, Toya Y, Yamashita Y, Oya N. Radiotherapy for T3N0 Glottic Carcinoma without Cord Fixation: Pattern of Failure Analysis. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1506] [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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19
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Hayatsu N, Miyao T, Tachibana M, Murakami R, Kimura A, Kato T, Kawakami E, Endo TA, Setoguchi R, Watarai H, Nishikawa T, Yasuda T, Yoshida H, Hori S. Analyses of a Mutant Foxp3 Allele Reveal BATF as a Critical Transcription Factor in the Differentiation and Accumulation of Tissue Regulatory T Cells. Immunity 2017; 47:268-283.e9. [PMID: 28778586 DOI: 10.1016/j.immuni.2017.07.008] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 05/02/2017] [Accepted: 07/10/2017] [Indexed: 12/25/2022]
Abstract
Foxp3 controls the development and function of regulatory T (Treg) cells, but it remains elusive how Foxp3 functions in vivo. Here, we established mouse models harboring three unique missense Foxp3 mutations that were identified in patients with the autoimmune disease IPEX. The I363V and R397W mutations were loss-of-function mutations, causing multi-organ inflammation by globally compromising Treg cell physiology. By contrast, the A384T mutation induced a distinctive tissue-restricted inflammation by specifically impairing the ability of Treg cells to compete with pathogenic T cells in certain non-lymphoid tissues. Mechanistically, repressed BATF expression contributed to these A384T effects. At the molecular level, the A384T mutation altered Foxp3 interactions with its specific target genes including Batf by broadening its DNA-binding specificity. Our findings identify BATF as a critical regulator of tissue Treg cells and suggest that sequence-specific perturbations of Foxp3-DNA interactions can influence specific facets of Treg cell physiology and the immunopathologies they regulate.
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Affiliation(s)
- Norihito Hayatsu
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Takahisa Miyao
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Masashi Tachibana
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Ryuichi Murakami
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan; Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Akihiko Kimura
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Takako Kato
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Eiryo Kawakami
- Laboratory for Disease Systems Modeling, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan; Disease Biology Group, RIKEN Medical Sciences Innovation Hub Program, Kanagawa 230-0045, Japan
| | - Takaho A Endo
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Ruka Setoguchi
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Hiroshi Watarai
- Division of Stem Cell Cellomics, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Sciences, The University of Tokyo, Tokyo 108-8639, Japan
| | - Takeshi Nishikawa
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Takuwa Yasuda
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Hisahiro Yoshida
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Shohei Hori
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan; Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.
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21
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Murakami R, Nakayama H, Semba A, Hiraki A, Nagata M, Kawahara K, Shiraishi S, Hirai T, Uozumi H, Yamashita Y. Prognostic impact of the level of nodal involvement: retrospective analysis of patients with advanced oral squamous cell carcinoma. Br J Oral Maxillofac Surg 2017; 55:50-55. [DOI: 10.1016/j.bjoms.2016.08.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 08/31/2016] [Indexed: 01/02/2023]
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22
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Toya R, Kai Y, Saito T, Kuraoka A, Shimohigashi Y, Nakaguchi Y, Maruyama M, Murakami R, Yamashita Y, Oya N. Plan Quality and Delivery Time Comparisons Between Volumetric Modulated Arc Therapy and Intensity Modulated Radiation Therapy for Scalp Angiosarcoma: A Planning Study Using X-ray Voxel Monte Carlo Algorithm. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
CT, MR and angiographic findings of 6 patients with 9 skull metastases from hepatocellular carcinoma (HCC) were reviewed. In 3 of 6 patients, local pain or neurologic deficit was the initial main manifestation of the disease, although all had been treated for chronic liver disease. In the remaining 3 patients, skull metastases were detected following treatment of HCC. The metastatic lesions appeared as expansile osteolytic masses on CT and as hypervascular masses on angiography. All lesions were demonstrated on MR imaging. Compared with the brain parenchyma, the lesions were iso- or hypointense on T1-weighted and T2-weighted MR images. The lesions were moderately to markedly enhanced by Gd-DTPA. Flow voids were shown in the tumors in 5 lesions. HCC should be included in the differential diagnosis of an osteolytic hypervascular lesion of the skull, especially in Oriental patients. The relatively hypointense tumor on T2-weighted MR images associated with flow void, different from primary skull tumors or directly invasive tumors, may support the diagnosis of HCC metastasis.
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Affiliation(s)
- R. Murakami
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - Y. Korogi
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - Y. Sakamoto
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - M. Takahashi
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - T. Okuda
- Department of Radiology, Kumamoto City Hospital, Kumamoto, Japan
| | - T. Yasunaga
- Department of Radiology, Kumamoto City Hospital, Kumamoto, Japan
| | - R. Nishimura
- Department of Radiology, National Saishunso Hospital, Kumamoto, Japan
| | - S. Yoshimatsu
- Department of Radiology, Kumamoto Regional Medical Center, Kumamoto, Japan
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Abstract
Objective: To evaluate the efficacy of direct MR arthrography for diagnosing plica synovialis mediopatellaris (PSM). Material and Methods: Twenty-two knees of 19 patients were examined by direct MR arthrography. In 19 of those knees, field-echo T2*-weighted transaxial images were obtained with intra-articular administration of 40 ml of saline (“direct MR arthrography”). In the other 3 knees, T1-weighted transaxial images were obtained with intra-articular administration of 40 ml of gadopentetate dimeglumine. Conventional MR images were evaluated prior to direct MR arthrography in 12 of the 22 knees. The results of direct MR arthrography and conventional MR imaging were compared with the arthroscopic findings. Results: Direct MR arthrography demonstrated 17 of 19 PSMs proved on arthroscopy. The features of 16 PSMs on direct MR arthrography corresponded accurately with the arthroscopic classification. Conventional MR demonstrated only 3 plicae. Conclusion: Direct MR arthrography enabled accurate diagnosis of PSMs and could replace diagnostic arthroscopy.
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Affiliation(s)
- Y Kobayashi
- Department of Radiology, Tama-Nagayama Hospital, Nippon Medical School, Tokyo, Japan
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25
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Abstract
A 66-year-old man with early gastric cancer and liver cirrhosis was diagnosed by preoperative angiography as having an aberrant left gastric vein communicating directly with the left lateral portal vein system. This communication was confirmed during operation for the gastric cancer. Our report is the first of an aberrant left gastric vein showing direct communication with the left portal vein system.
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Abstract
Angiography and arterial angio-CT in a 21-year-old man with idiopathic portal hypertension revealed an aberrant right gastric vein communicating directly with the quadrate lobe of the liver. This is the first report of a radiologically confirmed case of an aberrant right gastric vein with a unique area of distribution in the liver parenchyma.
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27
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Murakami R, Baba Y, Furusawa M, Nishimura R, Nakaura T, Baba T, Katsura F, Eura M, Masuyama K, Takahashi M. Early glottic squamous cell carcinoma: Predictive value of MR imaging for the rate of 5-year local control with radiation therapy. Acta Radiol 2016. [DOI: 10.1258/rsmacta.41.1.38] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Purpose: To evaluate MR findings in early (T1 and T2 stages) glottic carcinomas and the predictive value of MR imaging for the rate of 5-year local control with radiation therapy. Material and Methods: Eighty-three patients with early glottic carcinomas were prospectively examined with MR at 1.5 T. MR investigation included unenhanced T1-weighted, T2-weighted, dynamic and contrast-enhanced T1-weighted images. Three patients with presumed advanced diseases on MR were initially treated with total laryngectomy and were excluded from the study. The remaining 80 patients were treated with radiation therapy with curative intent. Tumor detectability, size and relationship to the thyroid cartilage were determined on MR images. The MR findings were then correlated with the rate of local control. Results: Forty-eight of 80 lesions (60%) were detected on MR imaging. All detected lesions but 1 demonstrated increased signal on T2-weighted images. The lesions were best delineated on dynamic images (statistically significant). The 5-year local control rate with radiation therapy was 72%. Univariate analysis revealed clinical T stage, MR detectability, tumor size and relationship to the thyroid cartilage as significant predictors. Multivariate analysis revealed that the relationship to the thyroid cartilage was an independent factor. Conclusion: MR provides prognostic information about the results of definitive radiation therapy. To evaluate the tumor extension in lesions detected on precontrast MR images, contrast-enhanced dynamic images should be obtained.
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Affiliation(s)
- R. Murakami
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - Y. Baba
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - M. Furusawa
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - R. Nishimura
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - T. Nakaura
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - T. Baba
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - F. Katsura
- Department of Otorhinolaryngology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - M. Eura
- Department of Otorhinolaryngology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - K. Masuyama
- Department of Otorhinolaryngology, Kumamoto University School of Medicine, Kumamoto, Japan
| | - M. Takahashi
- Department of Radiology, Kumamoto University School of Medicine, Kumamoto, Japan
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Oikawa M, Hatakeyama S, Narita T, Yamamoto H, Hosogoe S, Imai A, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Saitoh H, Funyu T, Narumi S, Ohyama C. Safety and Effectiveness of Marginal Donor in Living Kidney Transplantation. Transplant Proc 2016; 48:701-5. [DOI: 10.1016/j.transproceed.2015.09.067] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 08/21/2015] [Accepted: 09/15/2015] [Indexed: 10/21/2022]
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Semba A, Murakami R, Murakami D, Toya R, Hirai T, Saito T, Matsuyama T, Toyofuku T, Oya N. Assessment of the Neck Node Levels in Patients With Hypopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1323] [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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30
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Murakami R, Nakayama H, Toya R, Hiraki A, Nagata M, Kawahara K, Hirai T, Yamashita Y. Pattern of Lymph Node Involvement and Prognosis in Patients With Stage III-IV Oral Cancer Treated With Concurrent Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1288] [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: 10/22/2022]
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31
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Matsuo K, Hasegawa K, Yoshino K, Murakami R, Hisamatsu T, Ikeda Y, Enomoto T, Roman L, Fotopoulou C, Sood A. IL-6, VTE and ovarian clear cell carcinoma: A dangerous triad. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.01.270] [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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Abiko K, Matsumura N, Hamanishi J, Horikawa N, Murakami R, Yamaguchi K, Yoshioka Y, Baba T, Konishi I, Mandai M. IFN-γ from lymphocytes induces PD-L1 expression and promotes progression of ovarian cancer. Br J Cancer 2015; 112:1501-9. [PMID: 25867264 PMCID: PMC4453666 DOI: 10.1038/bjc.2015.101] [Citation(s) in RCA: 500] [Impact Index Per Article: 55.6] [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: 12/22/2014] [Revised: 02/19/2015] [Accepted: 02/19/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND PD-L1 (programmed cell death 1 ligand 1) on tumour cells suppresses host immunity through binding to its receptor PD-1 on lymphocytes, and promotes peritoneal dissemination in mouse models of ovarian cancer. However, how PD-L1 expression is regulated in ovarian cancer microenvironment remains unclear. METHODS The number of CD8-positive lymphocytes and PD-L1 expression in tumour cells was assessed in ovarian cancer clinical samples. PD-L1 expression and tumour progression in mouse models under conditions of altering IFN-γ signals was assessed. RESULTS The number of CD8-positive cells in cancer stroma was very high in peritoneally disseminated tumours, and was strongly correlated to PD-L1 expression on the tumour cells (P<0.001). In mouse models, depleting IFNGR1 (interferon-γ receptor 1) resulted in lower level of PD-L1 expression in tumour cells, increased the number of tumour-infiltrating CD8-positive lymphocytes, inhibition of peritoneal disseminated tumour growth and longer survival (P=0.02). The injection of IFN-γ into subcutaneous tumours induced PD-L1 expression and promoted tumour growth, and PD-L1 depletion completely abrogated tumour growth caused by IFN-γ injection (P=0.01). CONCLUSIONS Interferon-γ secreted by CD8-positive lymphocytes upregulates PD-L1 on ovarian cancer cells and promotes tumour growth. The lymphocyte infiltration and the IFN-γ status may be the key to effective anti-PD-1 or anti-PD-L1 therapy in ovarian cancer.
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Affiliation(s)
- K Abiko
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - N Matsumura
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - J Hamanishi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - N Horikawa
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - R Murakami
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - K Yamaguchi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Y Yoshioka
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - T Baba
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - I Konishi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, 54 Shogoin Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - M Mandai
- Department of Obstetrics and Gynecology, Faculty of Medicine, Kinki University, 377-2 Onohigashi, Osakasayama, Osaka 589-0014, Japan
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Hatakeyama S, Fujita T, Murakami R, Suzuki Y, Sugiyama N, Yamamoto H, Okamoto A, Imai A, Tobisawa Y, Yoneyama T, Mori K, Yoneyama T, Hashimoto Y, Koie T, Narumi S, Ohyama C. Outcome comparison of ABO-incompatible kidney transplantation with low-dose rituximab and ABO-compatible kidney transplantation: a single-center experience. Transplant Proc 2014; 46:445-8. [PMID: 24655984 DOI: 10.1016/j.transproceed.2013.09.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 09/20/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND The development of immunosuppressive techniques has helped overcome the ABO incompatibility barrier. However, the outcomes of ABO-incompatible (ABOi) kidney transplantation remain a controversial issue with the advent of the anti-CD20 chimeric antibody rituximab. Herein, we report the outcomes of ABOi kidney transplantation with low-dose rituximab. PATIENTS AND METHODS Between June 2006 and April 2013, 42 patients underwent living-related kidney transplantation at our hospital. The patients were divided into 2 groups: ABO-compatible (ABOc; n = 29) and ABOi kidney transplants using low-dose rituximab (100 mg/m(2)) without splenectomy (n = 13). The basic immunosuppression regimen (calcineurin inhibitor [CNI], mycophenolate mofetil [MMF], and steroids) was the same for both groups, except for the use of rituximab and therapeutic apheresis in the ABOi group. We compared post-transplantation renal function, incidents of virus infection, episodes of rejection, and graft survival between the 2 groups. RESULTS In our hospital, 30% of recipients received ABOi kidney transplants. The estimated glomerular filtration rate (eGFR) did not differ between the groups. Rejection episodes confirmed by biopsy in the ABOc and ABOi groups were 8 (28%) and 4 (31%) patients (P = .833), acute antibody-mediated rejection was observed in 1 (3.5%) and 2 (15%) patients (P = .165), and virus infection was observed in 14 (48%) and 3 (23%) patients (P = .252), respectively. The 5-year patient survival rate was 100% in both groups, and the 5-year graft survival rates were 95% for ABOc and 100% for ABOi transplants (P = .527). CONCLUSIONS These results suggest that the outcomes of ABOi kidney transplantation with low-dose rituximab are similar to those of ABOc kidney transplantation. Further study is necessary to address the efficacy and safety of ABOi kidney transplantation.
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Affiliation(s)
- S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - T Fujita
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Suzuki
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - N Sugiyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Okamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Tobisawa
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - K Mori
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Hirosaki, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Imanishi K, Hatakeyama S, Yamamoto H, Okamoto A, Imai A, Yoneyama T, Hashimoto Y, Koie T, Fujita T, Murakami R, Saitoh H, Funyu T, Narumi S, Ohyama C. Post-transplant renal function and cardiovascular events are closely associated with the aortic calcification index in renal transplant recipients. Transplant Proc 2014; 46:484-8. [PMID: 24655995 DOI: 10.1016/j.transproceed.2013.09.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Accepted: 09/20/2013] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The aortic calcification index (ACI) is reported to be closely associated with renal dysfunction and cardiovascular events; however, its implication in renal transplant recipients has not been well examined. In this study, we investigated the relationship between pretransplant ACI, ACI progression, post-transplant renal function, and post-transplant cardiovascular events in renal transplant recipients. PATIENTS AND METHODS The study from June 1996 to Jan 2012 included 61 renal transplant recipients (living donors, 47; cadaveric donors, 14). The median follow-up period was 60 months. ACI was quantitatively measured on abdominal computed tomography. The relationship between age, dialysis period, estimated glomerular filtration rate (eGFR), and pre- and post-transplant ACI was longitudinally evaluated. Risk factors for post-transplant ACI progression were determined by logistic regression analysis. Patient background and the incidence of post-transplant cardiovascular events were also assessed. RESULTS The pretransplant ACI (median 4.2%) significantly correlated with age at transplant, dialysis period, and diabetes mellitus. ACI gradually increased up to 2.8 times at 10 years after transplantation. Post-transplant eGFR significantly correlated with ACI progression in patients with chronic kidney disease of stage ≥ 3. Logistic regression analyses showed that age at transplantation, post-transplant period, cadaveric donors, and post-transplant chronic kidney disease stage 3 were risk factors for post-transplant ACI progression. The pretransplant ACI was higher (median 66%) in 3 patients who experienced post-transplant cardiovascular events. CONCLUSIONS ACI progression closely correlates with age and post-transplant renal function. A high pretransplant ACI is a risk factor for post-transplant cardiovascular events in renal transplant recipients.
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Affiliation(s)
- K Imanishi
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - S Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - H Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Okamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - A Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Y Hashimoto
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - T Fujita
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - R Murakami
- Department of Cardiology, Respiratory Medicine and Nephrology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - H Saitoh
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - T Funyu
- Department of Urology, Oyokyo Kidney Research Institute, Hirosaki, Japan
| | - S Narumi
- Department of Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Japan
| | - C Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan; Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Murakami R, Kai N, Fujita Y, Toya R, Hirai T, Nakayama H, Yamashita Y, Shinohara M. Prognostic Impact of the Nodal Level Involvement in Advanced Oral Cancer Treated With Preoperative Concurrent Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1556] [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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Toya R, Murakami R, Murakami D, Baba Y, Nishimura R, Matsuyama T, Saito T, Semba A, Yumoto E, Yamashita Y, Oya N. Radiation Therapy for Nasopharyngeal Carcinoma: Predictability of Treatment Outcomes at Interim Re-assessment. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1596] [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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Murakami R, Denda-Nagai K, Hashimoto SI, Nagai S, Hattori M, Irimura T. A unique dermal dendritic cell subset that skews the immune response toward Th2. PLoS One 2013; 8:e73270. [PMID: 24039898 PMCID: PMC3767795 DOI: 10.1371/journal.pone.0073270] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [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: 02/05/2013] [Accepted: 07/23/2013] [Indexed: 01/22/2023] Open
Abstract
Dendritic cell (DC) subsets in the skin and draining lymph nodes (LNs) are likely to elicit distinct immune response types. In skin and skin-draining LNs, a dermal DC subset expressing macrophage galactose-type C-type lectin 2 (MGL2/CD301b) was found distinct from migratory Langerhans cells (LCs) or CD103+ dermal DCs (dDCs). Lower expression levels of Th1-promoting and/or cross-presentation-related molecules were suggested by the transcriptome analysis and verified by the quantitative real-time PCR analysis in MGL2+ dDCs than in CD103+ dDCs. Transfer of MGL2+ dDCs but not CD103+ dDCs from FITC-sensitized mice induced a Th2-type immune response in vivo in a model of contact hypersensitivity. Targeting MGL2+ dDCs with a rat monoclonal antibody against MGL2 efficiently induced a humoral immune response with Th2-type properties, as determined by the antibody subclass. We propose that the properties of MGL2+ dDCs, are complementary to those of CD103+ dDCs and skew the immune response toward a Th2-type response.
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Affiliation(s)
- Ryuichi Murakami
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Kaori Denda-Nagai
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
- * E-mail: (KD); (TI)
| | - Shin-ichi Hashimoto
- Department of Computational Biology, Graduate School of Frontier Sciences, the University of Tokyo, Kashiwa, Japan
| | - Shigenori Nagai
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Masahira Hattori
- Department of Computational Biology, Graduate School of Frontier Sciences, the University of Tokyo, Kashiwa, Japan
| | - Tatsuro Irimura
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
- * E-mail: (KD); (TI)
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Murakami R, Nakayama H, Nagata M, Saito T, Toya R, Sakamoto F, Shiraishi S, Hirai T, Yamashita Y, Shinohara M. Clinical Nodal Staging and Clinical Target Volume for Preoperative Concurrent Chemoradiation Therapy in Patients With Advanced Oral Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1221] [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: 10/27/2022]
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Uetani H, Akter M, Hirai T, Shigematsu Y, Kitajima M, Kai Y, Yano S, Nakamura H, Makino K, Azuma M, Murakami R, Yamashita Y. Can 3T MR angiography replace DSA for the identification of arteries feeding intracranial meningiomas? AJNR Am J Neuroradiol 2012; 34:765-72. [PMID: 23079409 DOI: 10.3174/ajnr.a3284] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE For identifying the arterial feeders of meningiomas, the usefulness of 3D TOF MRA at 3T has not been systematically investigated. This study was intended to assess whether unenhanced 3D TOF MRA at 3T can replace DSA for the identification of arteries feeding intracranial meningiomas and whether it is useful for assessing their dural attachment. MATERIALS AND METHODS Twenty-one consecutive patients with intracranial meningiomas (18 women, 3 men; aged 42-77 years, mean 57 years) underwent DSA, conventional MR imaging, and 3D TOF MRA. Two neuroradiologists independently evaluated the primary and secondary feeders of each tumor on maximum-intensity-projection and source MRA images. They also identified the location of dural attachments based on information from MR imaging/MRA images. Interobserver and intermodality agreement was determined by calculating the κ coefficient. RESULTS For the identification of primary and secondary feeders on MRA images, interobserver agreement was very good (κ=0.83; 95% CI, 0.66-1.00) and moderate (κ=0.58; 95% CI, 0.34-0.82) and intermodality agreement (consensus reading of MRA versus DSA findings) was excellent (κ=0.94; 95% CI, 0.84-1.00) and good (κ=0.72; 95% CI, 0.51-0.93), respectively. With respect to the dural attachment of meningiomas, interobserver agreement was very good (κ=0.95; 95% CI, 0.84-1.00). The agreement in the diagnosis between MR imaging/MRA and surgery was excellent (κ=1.00). CONCLUSIONS Unenhanced 3D TOF MRA at 3T cannot at present supplant DSA for the identification of the feeding arteries of intracranial meningiomas. This information may be useful for evaluating their dural attachment.
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Affiliation(s)
- H Uetani
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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Sugiura D, Denda-Nagai K, Takashima M, Murakami R, Nagai S, Takeda K, Irimura T. Local effects of regulatory T cells in MUC1 transgenic mice potentiate growth of MUC1 expressing tumor cells in vivo. PLoS One 2012; 7:e44770. [PMID: 23028615 PMCID: PMC3444443 DOI: 10.1371/journal.pone.0044770] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Accepted: 08/07/2012] [Indexed: 11/18/2022] Open
Abstract
MUC1 transgenic (MUC1.Tg) mice have widely been used as model recipients of cancer immunotherapy with MUC1. Although MUC1.Tg mice have previously been shown to be immunologically tolerant to MUC1, the involvement of regulatory T (Treg) cells in this phenotype remains unclear. Here, we showed that numbers of Treg cells in MUC1-expressing tumors were greater in MUC1.Tg mice than in control C57BL/6 (B6) mice, and that the growth of tumor cells expressing MUC1, but not that of control cells, in MUC1. Tg mice was faster than in B6 mice. The MUC1.Tg mice appeared to develop MUC1-specific peripheral tolerance, as transferred MUC1-specific T cells were unable to function in MUC1.Tg mice but were functional in control B6 mice. The suppressive function of CD4+CD25high cells from MUC1.Tg mice was more potent than that of cells from control B6 mice when Treg cell activity against MUC1-specific T cells was compared in vitro. Therefore, the enhanced growth of MUC1-expressing tumor cells in MUC1.Tg mice is likely due to the presence of MUC1-specific Treg cells.
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Affiliation(s)
- Daisuke Sugiura
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Kaori Denda-Nagai
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
- * E-mail: (KDN); (TI)
| | - Mitsuyo Takashima
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Ryuichi Murakami
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
| | - Shigenori Nagai
- Department of Microbiology and Immunology, Keio University School of Medicine, Tokyo, Japan
| | - Kazuyoshi Takeda
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Tatsuro Irimura
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, the University of Tokyo, Tokyo, Japan
- * E-mail: (KDN); (TI)
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Nishimura S, Hirai T, Shigematsu Y, Kitajima M, Morioka M, Kai Y, Minoda R, Uetani H, Murakami R, Yamashita Y. Evaluation of brain and head and neck tumors with 4D contrast-enhanced MR angiography at 3T. AJNR Am J Neuroradiol 2012; 33:445-8. [PMID: 22116118 DOI: 10.3174/ajnr.a2819] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [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: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Systematic assessment of brain and head and neck tumors with 4D-CE-MRA at 3T has not been investigated. The purpose of this study was to test the hypothesis that 4D-CE-MRA at 3T can replace DSA in the identification of feeding arteries and tumor stain to plan interventional procedures in hypervascular brain and head and neck tumors. MATERIALS AND METHODS Fifteen consecutive patients with brain and head and neck tumors underwent 4D-CE-MRA at 3T and DSA. 4D-CE-MRA combined randomly segmented central k-space ordering, keyhole imaging, SENSE, and half-Fourier imaging. We obtained 30 dynamic scans every 1.9 seconds at an acquired spatial resolution of 0.9 × 0.9 × 1.5 mm; the matrix was 256 × 256. Two independent observers inspected the 4D-CE-MRA images for the main arterial feeders and tumor stain. Interobserver and intermodality agreement was assessed by κ statistics. RESULTS For 4D-CE-MRA, the interobserver agreement was fair with respect to the main arterial feeders and very good for the degree of tumor stain (κ = 0.28 and 0.87, respectively). Intermodality agreement was moderate for the main arterial feeders (κ = 0.45) and good for the tumor stain (κ = 0.74). CONCLUSIONS Although 4D-CE-MRA may be useful for evaluating tumor stain in hypervascular brain and head and neck tumors, it is not able to replace DSA in planning interventional procedures.
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Affiliation(s)
- S Nishimura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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Toya R, Murakami R, Imuta M, Matsuyama T, Saito T, Shiraishi S, Yoshida M, Tomiguchi S, Yamashita Y, Oya N. Impact of Hybrid FDG-PET/CT on Gross Tumor Volume Definition of Cervical Esophageal Cancer: Improving Inter- and Intra-observer Variations. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Takano K, Sugita K, Moriyama M, Hashida K, Hibino S, Choshi T, Murakami R, Yamada M, Suzuki H, Hori O, Nakamura Y. A dibenzoylmethane derivative protects against hydrogen peroxide-induced cell death and inhibits lipopolysaccharide-induced nitric oxide production in cultured rat astrocytes. J Neurosci Res 2011; 89:955-65. [PMID: 21425318 DOI: 10.1002/jnr.22617] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 12/28/2010] [Accepted: 01/11/2011] [Indexed: 11/06/2022]
Affiliation(s)
- K Takano
- Laboratory of Integrative Physiology in Veterinary Sciences, Osaka Prefecture University, Izumisano, Osaka, Japan.
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Tomitaka E, Murakami R, Teshima K, Nomura T, Nakaguchi Y, Nakayama H, Kitajima M, Hirai T, Araki Y, Shinohara M, Yamashita Y. Longitudinal Changes over 2 Years in Parotid Glands of Patients Treated with Preoperative 30-Gy Irradiation for Oral Cancer. Jpn J Clin Oncol 2011; 41:503-7. [DOI: 10.1093/jjco/hyq236] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tomitaka E, Murakami R, Teshima K, Nomura T, Hirai T, Hiraki A, Yamashita Y, Shinohara M, Oya N, Tomiguchi S. Longitudinal Changes of Parotid Glands after 30Gy Irradiation in Patients with Oral Cavity Cancer Treated with Preoperative Conventional Radiation Therapy. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Oda S, Awai K, Funama Y, Utsunomiya D, Yanaga Y, Kawanaka K, Nakaura T, Hirai T, Murakami R, Nomori H, Yamashita Y. Detection of small pulmonary nodules on chest radiographs: efficacy of dual-energy subtraction technique using flat-panel detector chest radiography. Clin Radiol 2010; 65:609-15. [DOI: 10.1016/j.crad.2010.02.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Revised: 02/20/2010] [Accepted: 02/25/2010] [Indexed: 10/19/2022]
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Fukuoka H, Hirai T, Okuda T, Shigematsu Y, Sasao A, Kimura E, Hirano T, Yano S, Murakami R, Yamashita Y. Comparison of the added value of contrast-enhanced 3D fluid-attenuated inversion recovery and magnetization-prepared rapid acquisition of gradient echo sequences in relation to conventional postcontrast T1-weighted images for the evaluation of leptomeningeal diseases at 3T. AJNR Am J Neuroradiol 2010; 31:868-73. [PMID: 20037130 DOI: 10.3174/ajnr.a1937] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [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: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The usefulness of contrast-enhanced 3D T2-FLAIR MR imaging for the evaluation of leptomeningeal diseases has not been systematically investigated. The purpose of this study was to assess the value added by contrast-enhanced 3D T2-FLAIR and MPRAGE sequences to conventional postcontrast T1-weighted images in the evaluation of leptomeningeal diseases. We also undertook in vitro studies in attempts to understand the consequences of our patient study. MATERIALS AND METHODS Twelve patients with confirmed leptomeningeal diseases underwent postcontrast T1-weighted, MPRAGE, and 3D T2-FLAIR imaging at 3T. Two radiologists independently assessed the presence of additional information on postcontrast 3D MR images compared with postcontrast T1-weighted images. The effect of different Gd concentrations and flow velocities on the signal intensity on 3D T2-FLAIR images was investigated in vitro. RESULTS According to both reviewers, 3D T2-FLAIR images yielded significantly more information than did MPRAGE images (P < .05 and P < .01, respectively). In the in vitro study, 3D T2-FLAIR was more highly sensitive to low Gd concentrations and less sensitive to high Gd concentrations than were T1-weighted or MPRAGE sequences. On 3D T2-FLAIR sequences, at a flow velocity exceeding 1.0 cm/s, the signal intensity of blood-mimicking fluids at concentrations of 0 and 0.1 mmol/L was as low as at 1.3 mmol/L. CONCLUSIONS For the depiction of leptomeningeal diseases, postcontrast 3D T2-FLAIR provides more additional information than postcontrast MPRAGE imaging. The superiority of the 3D T2-FLAIR sequence is associated with its high sensitivity to flow.
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Affiliation(s)
- H Fukuoka
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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Uddin S, Murakami R. Role of wnt/wingless signalling to differentiate small intestine and rectum of Drosophila. N Biotechnol 2010. [DOI: 10.1016/j.nbt.2010.01.217] [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: 11/30/2022]
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Murakami R, Nomura T, Toya R, Teshima K, Hirai T, Ohta K, Yamashita Y, Oya N, Shinohara M. Phase II Study of Preoperative Concurrent Chemoradiation Therapy with S-1 in Patients with T4 Oral Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sasao A, Hirai T, Nishimura S, Fukuoka H, Murakami R, Kitajima M, Okuda T, Akter M, Morioka M, Yano S, Nakamura H, Makino K, Kuratsu JI, Awai K, Yamashita Y. Assessment of vascular supply of hypervascular extra-axial brain tumors with 3T MR regional perfusion imaging. AJNR Am J Neuroradiol 2009; 31:554-8. [PMID: 19850766 DOI: 10.3174/ajnr.a1847] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The vascular supply of extra-axial brain tumors provided by the external carotid artery has not been studied with RPI. The purpose of this work was to determine whether RPI assessment is feasible and provides information on the vascular supply of hypervascular extra-axial brain tumors. MATERIALS AND METHODS Conventional ASL and RPI studies were performed at 3T in 8 consecutive patients with meningioma. On the basis of MRA results, we performed RPI by placing a selective labeling slab over the external carotid artery. Five patients underwent DSA before surgery. Two neuroradiologists independently evaluated the overall image quality, the degree of tumor perfusion, and the extent of the tumor vascular territory on conventional ASL and RPI. RESULTS In overall quality of conventional ASL and RPI, no images interfered with interpretation. In comparisons of the vascular tumor territory identified by the conventional ASL and RPI techniques, the territories coincided in 3 cases, were partially different in 4, and completely different in 1. The interobserver agreement was very good (kappa = 0.82). In 5 patients who underwent DSA, the 4 patients in whom the dominant supply was the external carotid artery were scored as coincided or partially different. The 1 patient in whom the vascular supply was from the internal carotid artery was scored as completely different. CONCLUSIONS RPI with selective labeling of the external carotid artery is feasible and may provide information about the vascular supply of hypervascular extra-axial brain tumors.
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Affiliation(s)
- A Sasao
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
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