Papers - SAITOU Tsuyoshi

vNOTESによる膜解剖理論に基づいた直腸周囲展開

足立 岳貴, 松浦 基樹, 黒川 晶子, 西村 庸子, 玉手 雅人, 秋元 太志, 齋藤 豪

日本内視鏡外科学会雑誌 ( (一社)日本内視鏡外科学会 )  27 ( 7 ) 599 - 599  2022.12

Predictive value of an exosomal microRNA-based signature for tumor immunity in cervical cancer patients treated with chemoradiotherapy.

Masanori Someya, Tomokazu Hasegawa, Takaaki Tsuchiya, Mio Kitagawa, Yuki Fukushima, Toshio Gocho, Shoh Mafune, Yutaro Ikeuchi, Yoh Kozuka, Masashi Idogawa, Yoshihiko Hirohashi, Toshihiko Torigoe, Masahiro Iwasaki, Motoki Matsuura, Tsuyoshi Saito, Koh-Ichi Sakata

Medical molecular morphology   56 ( 1 ) 38 - 45  2022.11  [Domestic journal]

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Resistance of cervical cancer to radiotherapy with concurrent chemotherapy (CCRT) results in a poor prognosis. To identify new biomarkers for predicting the treatment response and prognosis, we explored exosomal microRNA (miRNA) expression signatures associated with the outcome of cervical cancer patients treated with CCRT. Exosomes were isolated from the plasma of 45 patients prior to CCRT during 2014-2020, and miRNA analysis was performed by next-generation sequencing. At a median follow-up of 38 months, 26 patients were recurrence free, 15 patients had died of the disease, and 4 patients received salvage chemotherapy due to distant metastasis. Of the 2522 miRNAs detected, 9 (miR-148a-5p, 1915-3p, 3960, 183-5p, 196b-5p, 200c-3p, 182-5p, 374a-5p, and 431-5p) showed differential expression between the recurrence-free and recurrence groups. Patients were divided into high- and low-risk groups according to the cutoff of the miRNAs-based risk score calculated from respective expression levels. The high-risk group had significantly worse disease-specific survival than the low-risk group (p < 0.001). In addition, miR-374a-5p and miR-431-5p expression showed a weak inverse correlation with tumor-infiltrating CD8+ and FOXP3+ T cells, suggesting a potential inhibitory effect on CCRT by suppressing tumor immunity. This miRNA signature could improve non-invasive monitoring and personalized treatment for cervical cancer.

DOI PubMed

Human papillomavirus testing and cytology using physician-collected uterine cervical samples vs. self-collected vaginal samples and urine samples.

Noriko Terada, Motoki Matsuura, Shoko Kurokawa, Yoko Nishimura, Masato Tamate, Kyoko Isoyama, Satoko Yamazaki, Hiroshi Shimada, Masahiro Suzuki, Yuta Tabuchi, Mizue Teramoto, Tsuyoshi Saito

International journal of clinical oncology   27 ( 11 ) 1742 - 1749  2022.11  [Domestic journal]

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BACKGROUND: Human papillomavirus (HPV) testing using self-collected vaginal samples and urine samples is convenient and effective for improving the screening rate. But, to serve as an alternative cervical cancer screening technique, such tests must offer sensitivity equivalent to the HPV testing of physician-collected cervical samples. To examine the effectiveness of HPV testing using self-collected samples and urine samples, we compared the results of HPV testing using these samples with those of HPV testing using physician-collected samples and cytological examinations. METHODS: The study population included 300 women (age: 20-50 years) with abnormal cervical cytology. The results of HPV testing using self-collected samples and urine samples and physician-collected samples and cervical cytology were compared. RESULTS: For all HPV types, the κ-value was 0.773 for physician- and self-collected samples and 0.575 for physician-collected and urine samples. The κ-value for HPV type 16-positive samples was 0.988 for physician- and self-collected samples and 0.896 for physician-collected and urine samples. The κ-value for HPV type 18-positive samples was 0.856 for physician- and self-collected samples and 0.831 for physician-collected and urine samples. For other HPV types, the value was 0.809 for physician- and self-collected samples and 0.617 for physician-collected and urine samples. CONCLUSIONS: The obtained results were consistent between physician- and self-collected samples as well as between physician-collected and urine samples. Considering that the agreement rate was particularly high for the high-risk HPV types 16 and 18, HPV testing using physician-collected samples, self-collected samples, and urine samples was equally effective for the types with high carcinogenicity.

DOI PubMed

子宮移植/妊娠中免疫抑制療法/胎児免疫 Thiel法固定献体における子宮移植トレーニング

玉手 雅人, 松浦 基樹, 木須 伊織, 齋藤 豪

Organ Biology ( (一社)日本臓器保存生物医学会 )  29 ( 3 ) 86 - 86  2022.11

細胞診におけるAIの活用 子宮頸部細胞診におけるAIの活用

新開 翔太, 真里谷 奨, 梅本 美菜, 南部 優太, 永田 舞, 淺沼 広子, 上野 太郎, 廣橋 良彦, 鳥越 俊彦, 佐藤 生馬, 藤野 雄一, 齋藤 豪

日本臨床細胞学会雑誌 ( (公社)日本臨床細胞学会 )  61 ( Suppl.2 ) 447 - 447  2022.10

子宮動脈塞栓術併用の子宮鏡下切除術において子宮内バルーニングが有用であったRPOCの一例

南 怜毅, 長尾 沙智子, 木嶋 紗弓, 小川 栞, 山崎 智子, 玉手 雅人, 松浦 基樹, 齋藤 豪

北日本産科婦人科学会総会・学術講演会プログラム・抄録集 ( 東北連合産科婦人科学会・北日本産科婦人科学会 )  69回   64 - 64  2022.10

巨大嚢胞化し、子宮留膿腫を繰り返した帝王切開瘢痕部症候群の1例

仁木 舜一, 嶋田 浩志, 玉手 雅人, 杉山 芽, 今 沙織, 鈴木 美紀, 松浦 基樹, 齋藤 豪

北日本産科婦人科学会総会・学術講演会プログラム・抄録集 ( 東北連合産科婦人科学会・北日本産科婦人科学会 )  69回   112 - 112  2022.10

巨大嚢胞化し、子宮留膿腫を繰り返した帝王切開瘢痕部症候群の1例

仁木 舜一, 嶋田 浩志, 玉手 雅人, 杉山 芽, 今 沙織, 鈴木 美紀, 松浦 基樹, 齋藤 豪

北日本産科婦人科学会総会・学術講演会プログラム・抄録集 ( 東北連合産科婦人科学会・北日本産科婦人科学会 )  69回   112 - 112  2022.10

帝王切開創のケロイド予防とその修復の取り組み

杉山 芽, 嶋田 浩志, 玉手 雅人, 仁木 舜一, 今 沙織, 鈴木 美紀, 石岡 伸一, 斎藤 豪

北日本産科婦人科学会総会・学術講演会プログラム・抄録集 ( 東北連合産科婦人科学会・北日本産科婦人科学会 )  69回   66 - 66  2022.10

子宮悪性軟部腫瘍に対する新規薬剤が効果を認めた症例の検討

萬 和馬, 松浦 基樹, 足立 岳貴, 有元 千紘, 黒川 晶子, 西村 庸子, 玉手 雅人, 秋元 太志, 幅田 周太朗, 岩崎 雅宏, 齋藤 豪

日本癌治療学会学術集会抄録集 ( (一社)日本癌治療学会 )  60回   O46 - 2  2022.10

子宮動脈塞栓術併用の子宮鏡下切除術において子宮内バルーニングが有用であったRPOCの一例

南 怜毅, 長尾 沙智子, 木嶋 紗弓, 小川 栞, 山崎 智子, 玉手 雅人, 松浦 基樹, 齋藤 豪

北日本産科婦人科学会総会・学術講演会プログラム・抄録集 ( 東北連合産科婦人科学会・北日本産科婦人科学会 )  69回   64 - 64  2022.10

子宮頸がん検診未受診者対策としての自己採取HPV検査の有効性評価

松浦 基樹, 寺田 倫子, 西村 庸子, 玉手 雅人, 長尾 沙智子, 秋元 太志, 幅田 周太朗, 岩崎 雅宏, 齋藤 豪

日本臨床細胞学会雑誌 ( (公社)日本臨床細胞学会 )  61 ( Suppl.2 ) 477 - 477  2022.10

LSR antibody promotes apoptosis and disrupts epithelial barriers via signal pathways in endometrial cancer.

Kimihito Saito, Takumi Konno, Takayuki Kohno, Hiroshi Shimada, Motoki Matsuura, Tadahi Okada, Arisa Kura, Daichi Ishii, Masuo Kondoh, Tsuyoshi Saito, Takashi Kojima

Tissue barriers     2106113 - 2106113  2022.07  [International journal]

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Lipolysis-stimulated lipoprotein receptor (LSR), a lipid metabolism-related factor localized in tricellular tight junctions (tTJs), plays an important role in maintaining the epithelial barrier. LSR is highly expressed in well-differentiated endometrial endometrioid carcinoma (EEC), and its expression decreases during malignancy. Angubindin-1, a novel LSR ligand peptide, regulates tTJs without cytotoxicity, enhances paracellular permeability, and regulates epithelial barrier via c-Jun N-terminal kinase (JNK)/cofilin. In this study, we investigated the immune-modulatory roles of an anti-LSR antibody in the treatment of EEC in vitro compared to those of angubindin-1. We prepared an antibody against the extracellular N-terminal domain of human LSR (LSR-N-ab) and angubindin-1. EEC cell-line Sawano cells in 2D and 2.5D cultures were treated with 100 μg/ml LSR-N-ab or 2.5 μg/ml angubindin-1 with or without protein tyrosine kinase 2β inhibitor PF431396 (PF43) and JNK inhibitor SP600125 (SP60) at 10 μM. Treatment with LSR-N-ab and angubindin-1 decreased LSR at the membranes of tTJs and the activity of phosphorylated LSR and phosphorylated cofilin in 2D culture. Treatment with LSR-N-ab and angubindin-1 decreased the epithelial barrier measured as TEER values in 2D culture and enhanced the epithelial permeability of FD-4 in 2.5D culture. Treatment with LSR-N-ab, but not angubindin-1, induced apoptosis in 2D culture. Pretreatment with PF43 and SP60 prevented all the changes induced by treatment with LSR-N-ab and angubindin-1. Treatment with LSR-N-ab and angubindin-1 enhanced the cell metabolism measured as the mitochondrial respiration levels in 2D culture. LSR-N-ab and angubindin-1 may be useful for therapy of human EEC via enhanced apoptosis or drug absorption.

DOI PubMed

Pathological classification of desmoplastic reaction is prognostic factor in cervical adenocarcinoma.

Taishi Akimoto, Akira Takasawa, Kumi Takasawa, Tomoyuki Aoyama, Motoki Matsuura, Masato Tamate, Masahiro Iwasaki, Shutaro Habata, Taro Murakami, Makoto Osanai, Tsuyoshi Saito

Medical molecular morphology    2022.07  [Domestic journal]

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Desmoplastic reaction (DR) and inflammation are significant pathological manifestations of tumorigenesis in several cancers. However, the correlation between these stromal reactions and cervical adenocarcinoma has been poorly documented. This investigation elucidated whether DR is a prognostic indicator in early cervical adenocarcinoma patients. Fifty-nine patients with early stage cervical adenocarcinoma (stages I/II) were included in the study. DR was divided into three groups, mature, intermediate, and immature, based on the presence of myxoid stroma and hyalinized keloid-like collagen. Inflammatory cell responses were classified as mild, moderate, and severe. Those stromal reactions were separately evaluated in the invasion front stroma and intratumoral stroma. In both the intratumor and invasion front stroma, intermediate/immature DR was correlated with tumor size, T stage, N stage, lymphovascular invasion, and parametrial infiltration (p < 0.001 to p < 0.05). In addition, in the intratumoral stroma, intermediate/immature DR led to short relapse-free survival and overall survival (p < 0.001). In the invasion front stroma, inflammatory cell responses were associated with DR immaturity and FIGO stage (p < 0.01). These results suggest that the classification of DR maturity is a potential prognostic biomarker in early stage cervical adenocarcinoma patients. DR can be evaluated by routine H&E staining without immunohistochemistry, making it convenient and economical in clinical practice.

DOI PubMed

Label Smoothingを併用した2段階CNNによる子宮頸部細胞診断支援アルゴリズムについて

梅本 美菜, 真里谷 奨, 南部 優太, 新開 翔太, 永田 舞, 淺沼 広子, 廣橋 良彦, 鳥越 俊彦, 佐藤 生真, 藤野 雄一, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  64回   189 - 189  2022.07

当院における早期子宮体癌再発症例の検討

幅田 周太朗, 岩崎 雅宏, 萬 和馬, 野藤 五沙, 玉手 雅人, 秋元 太志, 松浦 基樹, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  64回   246 - 246  2022.07

プラチナ感受性再発卵巣がんに対するオラパリブ,ニラパリブ維持療法の比較検討

有元 千紘, 松浦 基樹, 足立 岳貴, 萬 和馬, 和田 渚, 篠原 由梨, 黒川 晶子, 西村 庸子, 玉手 雅人, 磯山 響子, 秋元 太志, 幅田 周太朗, 岩崎 雅宏, 齋藤 豪

日本婦人科腫瘍学会学術講演会プログラム・抄録集 ( (公社)日本婦人科腫瘍学会 )  64回   273 - 273  2022.07

妊娠中の脳腫瘍に対し,周期的なテモゾロミド投与を行った一例

齋藤 晋平, 古来 愛香, 真里谷 奨, 馬場 剛, 石岡 伸一, 齋藤 豪

日本周産期・新生児医学会雑誌 ( (一社)日本周産期・新生児医学会 )  58 ( Suppl.1 ) 323 - 323  2022.06

児の緩和的対応を前提とした新生児予後不良な妊娠における,適切な医療体制について

染谷 真行, 古来 愛香, 真里谷 奨, 馬場 剛, 石岡 伸一, 齋藤 豪

日本周産期・新生児医学会雑誌 ( (一社)日本周産期・新生児医学会 )  58 ( Suppl.1 ) 310 - 310  2022.06

帝王切開瘢痕部妊娠に対する一期的修復術の工夫

齋藤 晋平, 玉手 雅人, 西村 庸子, 磯山 響子, 幅田 周太郎, 松浦 基樹, 岩崎 雅宏, 齋藤 豪

産婦人科手術 ( (株)メジカルビュー社 )  ( 33 ) 129 - 129  2022.06