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01 奈良県立医科大学 >
012 大学院 >
0122 学位請求論文 >
01221 博士論文(医学) >
2024年度 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10564/4388
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タイトル: | Molecular mechanism of formation and destruction of a pseudo‑capsule in clear cell renal cell carcinoma |
その他のタイトル: | 淡明腎細胞癌における偽被膜の形成および破綻の分子学的機序 |
著者: | Shimizu, Takuto Miyake, Makito Iida, Kota Onishi, Sayuri Fujii, Tomomi Iemura, Yusuke Ichikawa, Kazuki Omori, Chihiro Maesaka, Fumisato Tomizawa, Mitsuru Miyamoto, Tatsuki Tanaka, Nobumichi Fujimoto, Kiyohide |
キーワード: | RCC PC prognostic factor molecular mechanism rat model |
発行日: | 2024年3月 |
出版者: | Spandidos Publications |
引用: | Oncology letters. 2024 Mar, vol.27, no.5, article no.225 |
抄録: | The process and molecular mechanisms underlying the formation and destruction of a pseudo-capsule (PC) in clear cell renal cell carcinoma (ccRCC) are poorly understood. In the present study, the PCs of surgical specimens from primary tumors and metastatic lesions in 169 patients with ccRCC, and carcinogen-induced ccRCC rat models were semi-quantified using the invasion of PC (i-Cap) score system. This was based on the relationship among the tumor, PC and adjacent normal tissue (NT) as follows: i-Cap 0, tumor has no PC and does not invade NT; i-Cap 1, tumor has a complete PC and does not invade into the PC; i-Cap 2, tumor with focal absences in the PC, which partially invades the PC but not completely through the PC; i-Cap 3, tumor crosses the PC and invades the NT; i-Cap 4, tumor directly invades the NT without a PC. The study suggested that PC formation was not observed without physical compression, and also revealed that tumor invasion into the PC was a prognostic factor for postoperative oncological outcomes. Higher i-Cap, Fuhrman grade and tumor size were independent poor prognostic factors for postoperative disease-free survival. mRNA expression arrays generated from carcinogen-induced ccRCC rat models were used to explore genes potentially associated with the formation and destruction of a PC. Subsequently, human ccRCC specimens were validated for four genes identified via expression array; the results revealed that collagen type 4A2, matrix metalloproteinase-7 and l-selectin were upregulated alongside the progression of i-Cap score. Conversely, endoglin was downregulated. In conclusion, the present study provides insights into the formation and destruction of a PC, and the results may aid the treatment and management of patients with ccRCC. |
内容記述: | 権利情報:© 2024 Shimizu et al. This is an open access article distributed under the terms of Creative Commons Attribution License (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
URI: | http://hdl.handle.net/10564/4388 |
ISSN: | 1792-1082 |
DOI: | https://doi.org/10.3892/ol.2024.14358 |
学位授与番号: | 24601甲第931号 |
学位授与年月日: | 2024-06-26 |
学位名: | 博士(医学) |
学位授与機関: | 奈良県立医科大学 |
出現コレクション: | 2024年度
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