研究者業績

伊藤 辰将

Yoshimasa Ito

基本情報

所属
藤田医科大学 医学部 医学科

ORCID ID
 https://orcid.org/0000-0003-0141-948X
J-GLOBAL ID
201901012614610682
researchmap会員ID
7000029414

論文

 15
  • Tomohiro Mizuno, Fumihiko Nagano, Yoshimasa Ito, Hideki Tatsukawa, Yoshiki Shinoda, Taishu Takeuchi, Kazuo Takahashi, Naotake Tsuboi, Tadashi Nagamatsu, Shuhei Yamada, Shoichi Maruyama, Kiyotaka Hitomi
    Biochemical and biophysical research communications 678 179-185 2023年8月23日  
    Extracellular histones induce endothelial damage, resulting in lung haemorrhage; however, the underlying mechanism remains unclear. Factor XIII, as a Ca2+-dependent cross-linking enzyme in blood, mediates fibrin deposition. As another isozyme, transglutaminase 2 (TG2) has a catalytic activity distributing in most tissues. Herein, we investigated whether TG2 promotes fibrin deposition and mediates the adhesion of platelets to ECs in histone-induced acute lung injury (ALI). We evaluated the lung histology and the adhesion of platelets to endothelial cells (ECs) after injecting histones to wild-type (WT) C57BL/6J and TG2 knockout (TG2-/-) mice, and administered a TG2 inhibitor (NC9) to WT mice. Pulmonary haemorrhage was more severe in TG2-/- mice than that in WT mice. The area of fibrin deposition and the proportion of CD41+CD31+ cells were lower in TG2-/- mice than in WT mice. Pre-treatment of NC9 decreased the area of fibrin deposition and the proportion of CD41+CD31+ cells in WT mice. These results suggest that TG2 prevents from pulmonary haemorrhage in ALI by promoting the adhesion of platelets to ECs and the fibrin deposition.
  • 中嶋 和紀, 袴田 知也, 堀 秀生, 伊藤 辰将, 釘田 雅則, 長尾 静子, 湯澤 由紀夫, 坪井 直毅, 高橋 和男
    JSBMS Letters 47(Suppl.) 92-92 2022年8月  
  • 中嶋 和紀, 袴田 知也, 堀 秀生, 伊藤 辰将, 釘田 雅則, 長尾 静子, 湯澤 由紀夫, 坪井 直毅, 高橋 和男
    JSBMS Letters 47(Suppl.) 92-92 2022年8月  
  • Koki Kato, Tomohiro Mizuno, Takenao Koseki, Yoshimasa Ito, Kazuo Takahashi, Naotake Tsuboi, Shigeki Yamada
    Frontiers in Pharmacology 13 2022年3月25日  
    Information on immune checkpoint inhibitor-induced vasculitides is limited, and predictors for this condition have not been identified. Therefore, we have examined the frequency of immune checkpoint inhibitor-induced vasculitides by analyzing the data recorded in the Japanese Adverse Drug Event Report database. Data from April 2004 to March 2020 were extracted, and vasculitides as an immune-related adverse event was defined according to the 2012 revised International Chapel Hill Consensus Conference Nomenclature of Vasculitides. Adverse event signals were recognized as significant when the reporting odds ratio estimates and lower limits of the corresponding 95% confidence intervals exceeded 1. The use of nivolumab showed a significant signal for vasculitides. Furthermore, significant signals of polymyalgia rheumatica were found when the patients were treated with nivolumab, pembrolizumab, and ipilimumab. In addition, the frequencies of nivolumab- and pembrolizumab-induced polymyalgia rheumatica were higher in patients aged ≥70 years and female patients, respectively. Polymyalgia rheumatica was reported in 38 patients treated with nivolumab; 31 (82%) of these were either in recovery or in remission. Further, polymyalgia rheumatica was reported in 17 patients treated with pembrolizumab; 13 (76%) of these were in recovery or remission, while three (18%) were not. Polymyalgia rheumatica was reported in 12 patients treated with ipilimumab; seven (58%) of these were in recovery or remission. Our study highlights that careful monitoring for the symptom of PMR (e.g., bilateral pain in shoulder and pelvic girdles) is required when the patients are aged >70 years and have been treated with nivolumab and when the patients are women and have been treated with pembrolizumab.
  • 坪井 直毅, 横江 優貴, 伊藤 辰将, 丸山 彰一
    腎と透析 91(3) 446-449 2021年9月  
  • 伊藤 辰将, 坪井 直毅
    腎と透析 91(増刊) 570-576 2021年8月  
  • 坪井 直毅, 伊藤 辰将
    現代医学 68(1) 106-110 2021年6月  
  • 坪井 直毅, 横江 優貴, 北川 章充, 伊藤 辰将, 遠藤 信英, 丸山 彰一
    腎臓内科 13(6) 812-819 2021年6月  
  • 多賀谷 知輝, 中島 颯之介, 中島 若菜, 堀内 雅人, 田中 友規, 成宮 利幸, 大山 翔也, 伊藤 辰将, 大谷内 樹那, 横江 優貴, 平野 恭子, 小出 滋久, 林 宏樹, 高橋 和男, 長谷川 みどり, 湯澤 由紀夫, 坪井 直毅
    日本透析医学会雑誌 54(Suppl.1) 532-532 2021年5月  
  • KOKI KATO, TOMOHIRO MIZUNO, TAKENAO KOSEKI, YOSHIMASA ITO, MASAKAZU HATANO, KAZUO TAKAHASHI, SHIGEKI YAMADA, NAOTAKE TSUBOI
    In Vivo 35(5) 2831-2840 2021年  査読有り
    Background/Aim: Concomitant proton pump inhibitor (PPI) and immune checkpoint inhibitor (ICPI) were determined as risk factors of acute kidney injury. To identify the type of PPI associated with ICPI-induced nephritis, we used the Japanese Adverse Drug Event Report database. Patients and Methods: ICPIs (nivolumab, pembrolizumab, ipilimumab, atezolizumab, durvalumab, and avelumab) and PPIs (esomeprazole, omeprazole, vonoprazan, rabeprazole, and lansoprazole) were selected as suspected nephritis-inducing drugs. Results: The cases of concomitant use of atezolizumab and rabeprazole, ipilimumab and omeprazole, ipilimumab and lansoprazole, nivolumab and esomeprazole, nivolumab and omeprazole, nivolumab and rabeprazole, nivolumab and lansoprazole, pembrolizumab and esomeprazole, as well as pembrolizumab and lansoprazole had a significantly higher reported odds ratio than monotherapy cases. Conclusion: Male patients or patients using ICPIs and PPIs (excluded vonoprazan) concomitantly should be monitored for renal function after chemotherapy.
  • 吉田 浩之, 湯澤 由紀夫, 長谷川 みどり, 稲熊 大城, 坪井 直毅, 林 宏樹, 小出 滋久, 大山 翔也, 多賀谷 知輝, 伊藤 辰将, 成宮 利幸, 磯貝 理恵子, 古田 弘貴, 堀内 雅人
    腎と透析 89(別冊 腹膜透析2020) 226-227 2020年8月  
  • Yoshimasa Ito, Hideki Tatsukawa, Hisateru Yamaguchi, Kazuo Takahashi, Kiyotaka Hitomi, Yukio Yuzawa
    Archives of biochemistry and biophysics 660 11-19 2018年12月15日  査読有り
    The glomerulus primarily comprises mesangial cells, glomerular microvascular endothelial cells, and podocytes. IgA nephropathy is the most common primary glomerulonephritis worldwide and has a risk of progression to end-stage renal disease. IgA nephropathy is characterized by predominant IgA deposition in the glomerular mesangial area, where TG2 is significantly enhanced. Therefore, identification of glomerular TG2 substrates is the first step in elucidating the role of TG2 as a crosslinking enzyme during disease progression. To clarify potential glomerular TG2 substrates, and to establish a procedure for substrate identification, we attempted to identify those molecules using normal mouse glomeruli. Extracts from mouse glomerular and non-glomerular fractions were treated with our established biotin-labeled substrate peptide, which specifically crosslinks to the lysine-donor substrates depending on TG2 activity. Peptide-incorporated proteins were then purified using avidin resin and identified via mass spectrometry. In parallel, we performed the identification using corresponding samples from TG2 knockout mice. Consequently, potential TG2 substrates were separately identified in glomerular and non-glomerular fractions. They were mainly identified as novel TG2 substrates and partly include the well-known substrates. These results potentially provide novel insights into the mechanism underlying IgA nephropathy and may help elucidate the physiological functions of TG2.
  • 中嶋和紀, 高橋和男, 伊藤辰将, 加藤彰浩, 今西進, 今西進, 山口央輝, 長尾静子, 原田健一, 湯澤由紀夫
    腎と脂質研究会プログラム・抄録集 29th 2017年  
  • 多田 将士, 伊藤 辰将, 金山 恭子, 杉山 和寛, 小出 滋久, 長谷川 みどり, 湯澤 由紀夫
    腎と透析 79(別冊 腹膜透析2015) 261-262 2015年10月  査読有り
    高齢かつ低心機能患者に腹膜透析(PD)を導入し、生活の質(QOL)のみならず心機能が改善した87歳男性の症例を報告した。10年前より腎硬化症による慢性腎不全にて加療中、心エコーでの所見で高度の低心機能を認めていたが、腎機能が不良のため心カテーテル検査による心精査を施行できなかった。うっ血性心不全を発症し入退院を繰り返していた。腎機能は緩徐に増悪したため、PDカテーテルを挿入し、体液量コントロールを目的にPD導入とした。導入後1年の時点で、心機能、SF-36v2によるQOL評価ともに改善を認めた。下腿の浮腫が消失し、経口摂取が改善し体重は増加した。本症例のように重度の低心機能例では、残腎機能が十分に保たれているうちからPD導入が望ましいと考えられた。本症例ではPDによって心機能が改善したが、心機能改善には血液透析(HD)にはない緩徐な除水に加え、さまざまな物質の除去が関与している可能性があり、今後HDと比較した検討が必要であることを指摘した。
  • Hasbaira Bolor, Terumi Mori, Sachie Nishiyama, Yoshimasa Ito, Eriko Hosoba, Hidehito Inagaki, Hiroshi Kogo, Tamae Ohye, Makiko Tsutsumi, Takema Kato, Maoqing Tong, Haruki Nishizawa, Kanako Pryor-Koishi, Eri Kitaoka, Tomio Sawada, Yukio Nishiyama, Yasuhiro Udagawa, Hiroki Kurahashi
    American journal of human genetics 84(1) 14-20 2009年1月  査読有り
    Aneuploidy, a chromosomal numerical abnormality in the conceptus or fetus, occurs in at least 5% of all pregnancies and is the leading cause of early pregnancy loss in humans. Accumulating evidence now suggests that the correct segregation of chromosomes is affected by events occurring in prophase during meiosis I. These events include homologous chromosome pairing, sister-chromatid cohesion, and meiotic recombination. In our current study, we show that mutations in SYCP3, a gene encoding an essential component of the synaptonemal complex that is central to the interaction of homologous chromosomes, are associated with recurrent pregnancy loss. Two out of 26 women with recurrent pregnancy loss of unknown cause were found to carry independent heterozygous nucleotide alterations in this gene, neither of which was present among a group of 150 fertile women. Analysis of transcripts from minigenes harboring each of these two mutations revealed that both affected normal splicing, possibly resulting in the production of C-terminally mutated proteins. The mutant proteins were found to interact with their wild-type counterpart in vitro and inhibit the normal fiber formation of the SYCP3 protein when coexpressed in a heterologous system. These data suggest that these mutations are likely to generate an aberrant synaptonemal complex in a dominant-negative manner and contribute to abnormal chromosomal behavior that might lead to recurrent miscarriage. Combined with the fact that similar mutations have been previously identified in two males with azoospermia, our current data suggest that sexual dimorphism in response to meiotic disruption occurs even in humans.

MISC

 9

講演・口頭発表等

 17