alexa Prognostic significance of circulating tumor cell count in patients with metastatic hormone-sensitive prostate cancer.
Oncology

Oncology

Journal of Integrative Oncology

Author(s): Resel Folkersma L, San Jos Manso L, Galante Romo I, Moreno Sierra J, Olivier Gmez C

Abstract Share this page

Abstract OBJECTIVE: To analyze the correlation between circulating tumor cell (CTC) levels and clinicopathologic parameters (prostate-specific antigen level, Gleason score, and TNM stage) in patients with metastatic hormone-sensitive prostate cancer (PCa) and to establish its prognostic value in overall survival (OS) and progression-free survival (PFS). MATERIALS AND METHODS: A prospective, 3-arm study was performed that included 30 patients with localized PCa; 30 patients with metastatic PCa, and 30 healthy volunteers. A single 7.5-mL peripheral blood sample was taken. The CTCs were isolated using an immunomagnetic method based on the CellSearch system. Kendall's tau and Spearman's rho coefficients of correlation were used. The multivariate Cox regression model addressed OS and PFS. RESULTS: The median follow-up was 42.9 months (interquartile range 27.14-49.5). A significant positive correlation was demonstrated between the CTC level and all tumor burden markers (prostate-specific antigen and T, N, and M stage; P <.001), except for Gleason score (tau = 0.16). A cutoff of ≥ 4 CTCs/7.5 mL was chosen to distinguish patients with a poor prognosis. These patients had a significantly shorter median OS and PFS (24 vs 45 months and 7 vs 44 months, respectively; P <.001). As the CTC level increased, the OS and PFS decreased. The risk of mortality and progression for the patients with ≥ 4 CTCs was 4.1 (P = .029) and 8.5 (P <.001) times greater. Multivariate analyses indicated that a CTC of ≥4 was an independent prognostic factor for PFS (hazard ratio 5.9, P <.005). CONCLUSION: The CTC count in peripheral blood could provide a method of staging PCa correctly and be of value when assessing the prognosis of metastatic hormone-sensitive PCa. Copyright © 2012 Elsevier Inc. All rights reserved. This article was published in Urology and referenced in Journal of Integrative Oncology

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords