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Soluble PD-L1 Expression in Circulation as a Predictive Marker for Recurrence and Prognosis in Gastric Cancer: Direct Comparison of the Clinical Burden Between Tissue and Serum PD-L1 Expression
http://hdl.handle.net/10076/00019073
http://hdl.handle.net/10076/0001907314908af9-ee04-4be6-84fd-35704b0c275e
| 名前 / ファイル | ライセンス | アクション |
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2019DM0312 (481.7 kB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||||
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| 公開日 | 2020-06-09 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Soluble PD-L1 Expression in Circulation as a Predictive Marker for Recurrence and Prognosis in Gastric Cancer: Direct Comparison of the Clinical Burden Between Tissue and Serum PD-L1 Expression | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | eng | |||||||||||
| 資源タイプ | ||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||||||
| 資源タイプ | doctoral thesis | |||||||||||
| アクセス権 | ||||||||||||
| アクセス権 | open access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||
| 著者 |
重盛, 恒彦
× 重盛, 恒彦
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | Background. This study assessed programmed cell death ligand 1 (PD-L1) expression in primary tissues and soluble PD-L1 (sPD-L1) concentration in matched preoperative serum in gastric cancer (GC) patients to perform direct comparison between tissue and serum PD-L1 expression and to clarify the prognostic implication in GC. Methods. The study enrolled 180 GC patients who underwent surgery for GC at the authors’ institution. The study evaluated tissue PD-L1 expression using immuno- histochemistry and quantified sPD-L1 concentration in preoperative serum using enzyme-linked immunosorbent assay in GC patients. Results. The findings showed that PD-L1 was overexpressed in GC tissues compared with normal mucosa. Tissue PD-L1 expression was significantly higher in the GC patients with advanced T stage, presence of lympho-vascular invasion, lymph node metastasis, and peritoneal metastasis.Furthermore, elevated tissue PD-L1 expression was significantly associated with poor prognosis for overall survival (OS) and disease-free survival (DFS). Serum sPD-L1 was significantly higher in the GC patients than in the healthy volunteers. Although serum sPD-L1 was not correlated with any clinicopathologic factors, the patients with high serum sPD-L1 showed poorer OS and DFS than those with low sPD- L1. Multivariate analyses showed that both elevated tissue PD-L1 and serum sPD-L1 were independent prognostic factors for poor OS [tissue PD-L1: hazard ratio (HR), 4.28; 95% confidence interval (CI), 1.43–12.8; P = 0.0094 vs. serum sPD-L1: HR, 11.2; 95% CI, 3.44–36.7; P = 0.0001] and poor DFS (tissue PD-L1: HR, 6.96; 95% CI, 2.48–19.6; P = 0.0002 vs. serum sPD-L1: HR, 8.7; 95% CI, 3.16–23.9; P \ 0.0001) for the GC patients. Furthermore, infiltrative CD8- and Foxp3-positive T cells were significantly increased in the GC patients with elevated tissue PD-L1 expression. Conclusion. Both serum sPD-L1 and tissue PD-L1 expression may serve as predictive biomarkers for recurrence and prognosis in GC patients. |
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| 内容記述 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | 本文/Division of Reparative Medicine, Department of Gastrointestinal and Pediatric Surgery, Institute of Life Sciences, Graduate School of Medicine, Mie University, Mie, Japan | |||||||||||
| 内容記述 | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | 8p | |||||||||||
| 書誌情報 |
発行日 2020-03-25 |
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| DOI | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | 10.1245/s10434-018-07112-x | |||||||||||
| フォーマット | ||||||||||||
| 内容記述タイプ | Other | |||||||||||
| 内容記述 | application/pdf | |||||||||||
| 著者版フラグ | ||||||||||||
| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | 三重大学 | |||||||||||
| 出版者（ヨミ） | ||||||||||||
| ミエダイガク | ||||||||||||
| 学位名 | ||||||||||||
| 学位名 | 博士(医学) | |||||||||||
| 学位授与機関 | ||||||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||||||
| 学位授与機関識別子 | 14101 | |||||||||||
| 学位授与機関名 | 三重大学 | |||||||||||
| 学位授与年月日 | ||||||||||||
| 学位授与年月日 | 2020-03-25 | |||||||||||
| 学位授与番号 | ||||||||||||
| 学位授与番号 | 甲医学第2003号 | |||||||||||
| ノート | ||||||||||||
| 資源タイプ（三重大） | ||||||||||||
| Doctoral Dissertation / 博士論文 | ||||||||||||
