目的：探讨CD24 在前列腺癌组织中的表达及其与前列腺癌患者临床病理特征的关系。方法选取2016 年2 月至2019 年3 月福建医科大学附属泉州第一医院泌尿外科手术切除的40 例新鲜前列腺癌组织及相应的36 例癌旁组织，46 例前列腺增生组织标本取自TURP手术患者。通过流式细胞术检测40 例前列腺癌、36 例癌旁前列腺组织、46 例前列腺增生组织标本中CD24 的表达水平；运用单因素方差分析CD24 的表达量与前列腺癌患者的年龄、肿瘤分布情况、术前血清PSA含量、术后Gleason评分、临床分期和是否远处转移之间的关系。结果: 前列腺癌中CD24 的阳性表达率及平均荧光强度（MFI）值均明显高于癌旁前列腺组织和良性前列腺增生组织（均P<0.05）；术前血清PSA≥10 ng/ml、术后Gleason 评分≥8 分（低分化）、临床分期T4 期和远处转移的前列腺癌组织中CD24 的阳性细胞率及MFI值均明显高于对应组（均P<0.05）；且CD24 的表达随着术后Gleason 评分及临床分期的进展而逐渐增加（P<0.05）。结论：CD24 在前列腺癌组织中的表达增加，检测CD24 的表达水平可协助判断前列腺癌的发生、发展及侵袭转移等情况，具有潜在的临床应用价值。

Objective: To investigate the expression of CD24 in prostate cancer (PC) tissues, and explore its relationship with clinicopathological features of PC patients. Methods: A total of 40 cases of PC tissues and 36 cases of corresponding para-cacerous tissues resected during surgery at the Department of Urology Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University from February 2016 to March 2019 were collected for this study; in addition, 46 cases of benign prostatic hyperplasia tissues were collected from patients underwent TURP surgery. Flow cytometry was used to detect the expression of CD24 in above mentioned tissues; One-way analysis of variance was used to analyze the relationship between the expression of CD24 and the age, tumor distribution, preoperative serum PSA, postoperative Gleason score, clinical stage and distant metastasis of PC patients. Results: The positive expression rate and MFI (mean fluorensece intensity) value of CD24 in prostate cancer tissues were significantly higher than those in para-cancerous prostate tissues and benign prostatic hyperplasia tissues (all P<0.05); CD24 positive expression rate and MFI value in PC tissues of patients with preoperative serum PSA ≥ 10 ng/ml, postoperative Gleason score ≥8 (low differentiation), clinical stage of T4 and distant metastasis were significantly higher than corresponding control group (all P<0.05); The expression of CD24 gradually increased with the progression of postoperative Gleason score and clinical stage (P<0.05). Conclusions: The expression of CD24 is increased in prostate cancer tissues. The detection of CD24 expression level can help to determine the occurrence, development, invasion and metastasis of prostate cancer, and has potential clinical application value.

泉州市科技计划项目资助（No.2014Z27）