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Evaluation of the diagnostic value of circulating tumor cells with CytoSorter® CTC capture system in patients with breast cancer.
Cancer Medicine ( IF 2.9 ) Pub Date : 2020-01-06 , DOI: 10.1002/cam4.2825
Lidan Jin 1 , Wenhe Zhao 1 , Jun Zhang 2 , Wenjun Chen 1 , Tan Xie 3 , Linbo Wang 1 , Wanhung Fan 4 , Shuduo Xie 1 , Jianguo Shen 1 , Heming Zheng 1 , Wenxian Hu 1 , Qun Wei 1 , Minjun Dong 1 , Qinchun Wang 1 , Jun Shen 1 , Yongcheng Liu 1
Affiliation  

PURPOSE In this study, we aimed to investigate the viability of utilizing CytoSorter® system to detect circulating tumor cells (CTCs) and to evaluate the diagnostic value of CTCs in breast cancer (BC). METHODS A total of 366 females patients suspected of having BC and 30 healthy female volunteers were enrolled in this study. CTCs were enriched by CytoSorter® , a microfluidic-based CTCs capturing platform. CTC detection was performed before operation or biopsy. Based on the biopsy results, patients were divided into two groups, namely patients with BC and patients with benign breast diseases (BBD). Patients with BBD and healthy volunteers were serving as controls. The correlation between CTC enumeration and patients' clinicopathological characteristics was evaluated. The receiver operating characteristic (ROC) curve was plotted to assess the diagnostic potency of CytoSorter® system in BC. RESULTS Based on the biopsy results, 130 BC patients at different cancer stages and 236 patients with BBD were enrolled in the study. Seven subjects were dropped out from the study. CTCs were detected in 109 of 128 BC patients, in one of 29 healthy volunteers, and in 37 of 232 patients with BBD. Maximum CTC counts detected in BC patients, healthy volunteers, and patients with BBD were 8, 1, and 4, respectively. Statistical analysis showed CTCs could be used to distinguish BC patients from healthy volunteers and patients with BBD (P < .0001). Circulating tumor cells were statistically associated with patients' cancer stage (P = .0126), tumor size (tumor node metastasis [TNM] T stage, P = .0253), cancer type (invasive vs noninvasive, P = .0141), and lymph node metastasis (P = .0436). More CTCs were found in patients at advanced cancer stage or TNM T stage and in patients with invasive tumor or lymph node metastasis. Furthermore, CTC detection rates in BC patients at Tis and T1-4 stages were 50%, 81.67%, 91.07%, 100%, and 100%, respectively. When the CTC cut-off value was set to 2, the ROC curve gave an area under the curve (AUC) of 0.86 with a specificity and sensitivity of 95.4% and 76.56%, respectively. Taken together, CTCs could be used as a diagnostic aid in assistance of cancer screening and staging. CONCLUSION Circulating tumor cells were successfully isolated in BC patients using CytoSorter® system. CTCs can be used to differentiate BC patients from the patients with BBD or healthy volunteers, and as a diagnostic aid for early cancer diagnosis and cancer staging.

中文翻译:


使用 CytoSorter® CTC 捕获系统评估循环肿瘤细胞对乳腺癌患者的诊断价值。



目的 在本研究中,我们旨在研究利用 CytoSorter® 系统检测循环肿瘤细胞 (CTC) 的可行性,并评估 CTC 对乳腺癌 (BC) 的诊断价值。方法 366 名疑似 BC 女性患者和 30 名健康女性志愿者纳入本研究。 CytoSorter® 是一种基于微流体的 CTC 捕获平台,可富集 CTC。手术或活检前进行CTC检测。根据活检结果,患者被分为两组,即BC患者和良性乳腺疾病(BBD)患者。 BBD 患者和健康志愿者作为对照。评估CTC计数与患者临床病理特征之间的相关性。绘制受试者工作特征 (ROC) 曲线以评估 CytoSorter® 系统在 BC 中的诊断效力。结果 根据活检结果,130 名不同癌症阶段的 BC 患者和 236 名 BBD 患者被纳入研究。七名受试者从研究中退出。在 128 名 BC 患者中的 109 名、29 名健康志愿者中的 1 名以及 232 名 BBD 患者中的 37 名中检测到了 CTC。在 BC 患者、健康志愿者和 BBD 患者中检测到的最大 CTC 计数分别为 8、1 和 4。统计分析表明,CTC 可用于区分 BC 患者、健康志愿者和 BBD 患者 (P < .0001)。循环肿瘤细胞与患者的癌症分期 (P = .0126)、肿瘤大小(肿瘤淋巴结转移 [TNM] T 分期,P = .0253)、癌症类型(侵袭性与非侵袭性,P = .0141)和癌症类型存在统计学相关性。淋巴结转移 (P = .0436)。 在晚期癌症分期或TNM T分期的患者以及患有侵袭性肿瘤或淋巴结转移的患者中发现了更多的CTC。此外,Tis期和T1-4期BC患者的CTC检出率分别为50%、81.67%、91.07%、100%和100%。当CTC截止值设置为2时,ROC曲线的曲线下面积(AUC)为0.86,特异性和敏感性分别为95.4%和76.56%。总而言之,CTC 可用作辅助癌症筛查和分期的诊断辅助工具。结论 使用 CytoSorter® 系统成功分离了 BC 患者的循环肿瘤细胞。 CTC 可用于区分 BC 患者与 BBD 患者或健康志愿者,并作为早期癌症诊断和癌症分期的诊断辅助手段。
更新日期:2020-01-07
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