天津医药 ›› 2017, Vol. 45 ›› Issue (4): 389-392.doi: 10.11958/20161446

• 临床研究 • 上一篇    下一篇

Polo 样激酶 1 在去势抵抗性前列腺癌中的表达及意义

王丽丽 1, 王海涛 2△, 霍彬 2, 李鑫 1, 汪浩 2, 侯定坤 2   

  1. 1 天津医科大学肿瘤医院, 国家肿瘤临床医学研究中心, 天津市 “肿瘤防治” 重点实验室, 天津市恶性肿瘤临床医学研究中心 (邮编 300060); 2 天津医科大学第二医院肿瘤科, 天津市泌尿外科研究所
  • 收稿日期:2016-12-01 修回日期:2017-03-05 出版日期:2017-04-15 发布日期:2017-04-15
  • 通讯作者: △通讯作者 E-mail: peterrock2000@126.com E-mail:412526928@qq.com
  • 作者简介:王丽丽 (1990), 女, 硕士, 住院医师, 主要从事晚期泌尿系统肿瘤个体化治疗的基础临床研究
  • 基金资助:
    天津市卫生行业重点攻关项目 (14KG141); 国家自然科学基金资助项目 (81572543)

The expression and its clinical significance of PLK1 in castration-resistant prostate cancer

WANG Li-li1, WANG Hai-tao2△, HUO Bin2, LI Xin1, WANG Hao2, HOU Ding-kun2   

  1. 1 Tianjin Medical University, Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin Clinical Research Center for Cancer, Tianjin 300060, China; 2 Department of Oncology, Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Second Hospital of Tianjin Medical University, Tianjin Institute of Urology
  • Received:2016-12-01 Revised:2017-03-05 Published:2017-04-15 Online:2017-04-15
  • Contact: △Corresponding Author E-mail: peterrock2000@126.com E-mail:412526928@qq.com

摘要: 目的 探讨 Polo 样激酶 1 (PLK1) 在去势抵抗性前列腺癌 (CRPC) 组织中的表达及其与患者临床病理特征 的关系。方法 选取 2010 年 1 月—2016 年 9 月天津医科大学第二医院收集的 44 例 CRPC 组织标本, 包括前列腺 腺癌 28 例, 神经内分泌型前列腺癌(NEPC) 14 例, 其他类型 2 例, 另取同期手术切除的 10 例前列腺增生标本为对 照。采用免疫组化 S-P 法检测 PLK1 的表达, 并分析其表达与 CRPC 患者临床病理特征的关系。结果 PLK1 主要 表达于 CRPC 细胞胞质, 在前列腺增生组织中不表达。年龄、 原发肿瘤局部情况、 是否存在区域淋巴结转移和前列腺 特异性标志物(PSA)水平对 PLK1 的表达无明显影响(P>0.05), Gleason 评分>8 分的 CRPC 患者 PLK1 的表达水平 显著高于 Gleason 评分≤8 分的患者, PLK1 的表达水平与 Gleason 评分呈正相关(rs=0.441, P<0.05)。结论 PLK1 在 CRPC 组织中高表达, 可反映 CRPC 的增殖与分化程度, 有望成为 CRPC 治疗的潜在靶点。

关键词: 前列腺肿瘤, 免疫组织化学, 去势抵抗性前列腺癌, Polo 样激酶 1, 临床特征

Abstract: Objective To study the relationship between the expression level of PLK1 in castration-resistant prostate cancer (CRPC) tissues, and its relationship with pathological features. Methods Forty-four CRPC specimens including 28 samples from patients with prostate adenocarcinoma, 14 samples from patients with neuroendocrine prostate cancer (NEPC) and 2 samples from patients with other types of prostate cancer, and 10 normal prostatic hyperplasia specimens were collected from January 2010 to September 2016 in the Second Hospital of Tianjin Medical University. The expression levels of PLK1 in these tissues were detected by S- P immunohistochemistry. The relationship between PLK1 expression and pathologic factors was discussed. Results The positive expression of PLK1 was located in cytoplasm of carcinoma cells, and no express of PLK1 was found in benign prostatic hyperplasia tissues. The expression levels of PLK1 showed no significantly differences between different groups of age, local tumor invasion and regional nodal status, and the level of prostate-specific antigen (PSA, P>0.05). The expression level of PLK1 in patients with Gleason score >8 was higher than that in patients with Gleason score≤8. The PLK1 expression level was positively correlated with Gleason score (rs=0.441, P< 0.05). Conclusion PLK1 protein is over-expressed in CRPC tissues, which can reflect the proliferation and differentiation of cancer cells and may be a potential marker of CRPC.

Key words: prostatic neoplasms, immunohistochemistry, castration- resistant prostate cancer, Polo- like kinase 1, clinical characteristic