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03.08.2020 | Urology - Original Paper

Clinical significance of phenotyping and karyotyping of detecting circulating tumor cells in renal cell carcinoma using subtraction enrichment and immunostaining-fluorescence in situ hybridization (SE-iFISH)

verfasst von: Dongxu Tian, Mingxin Zhang, Guoyang Zheng, Yushi Zhang, Yongqiang Li, Ping Lin, Hanzhong Li, Wei Jiao, Haitao Niu

Erschienen in: International Urology and Nephrology | Ausgabe 12/2020

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Abstract

Background and Objectives

Circulating tumor cells (CTCs) as a noninvasive detection technology have become a research hotspot in the field of precision medicine. However, CTC detection faces great challenges with respect to specificity and sensitivity.

Methods

We divided 39 subjects into three groups: renal carcinoma, renal stones and healthy persons. Using subtraction enrichment (SE) combined with immunostaining-fluorescence in situ hybridization technology, we identified and characterized CTCs. CTCs were identified as DAPI +/CD45-/PanCK + (−). We explored whether the number of CTCs was related to clinicopathological factors and their clinical application.

Results

The CTC count in the renal carcinoma group (29/39) was 86.20% using a cut-off value of 1 CTC, which was significantly higher than that of other technologies in detecting CTCs, demonstrating that SE-iFISH technology can be used for CTC detection. The CTC count was much higher in the renal carcinoma group than that in the other control groups, with an area under the ROC curve of 0.931 (95% confidence interval 0.851 to 1.000, P < 0.01). In addition, the tetraploid count on chromosome 8 of T4 stage renal carcinoma was much higher than that of other stages (T1-T3), which may suggest that tetraploid count could be a marker of renal carcinoma prognosis and influence treatment decisions for better clinical management.

Conclusions

Our study showed that SE-iFISH technology can be used to detect CTCs in renal carcinoma with high sensitivity and specificity. Therefore, the analysis of CTCs with SE-iFISH has clear potential to improve the management of patients with renal carcinoma.

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Titel: Clinical significance of phenotyping and karyotyping of detecting circulating tumor cells in renal cell carcinoma using subtraction enrichment and immunostaining-fluorescence in situ hybridization (SE-iFISH)
verfasst von: Dongxu Tian
Mingxin Zhang
Guoyang Zheng
Yushi Zhang
Yongqiang Li
Ping Lin
Hanzhong Li
Wei Jiao
Haitao Niu
Publikationsdatum: 03.08.2020
Verlag: Springer Netherlands
Erschienen in: International Urology and Nephrology / Ausgabe 12/2020
Print ISSN: 0301-1623
Elektronische ISSN: 1573-2584
DOI: https://doi.org/10.1007/s11255-020-02587-8

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Abstract

Background and Objectives

Methods

Results

Conclusions

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