RT Journal Article
T1 A comprehensive study of circulating tumour cells at the moment of prostate cancer diagnosis: biological and clinical implications of EGFR, AR and SNPs.
A1 Puche-Sanz, Ignacio
A1 Alvarez-Cubero, María J
A1 Pascual-Geler, Manrique
A1 Rodríguez-Martínez, Alba
A1 Delgado-Rodríguez, Miguel
A1 García-Puche, José L
A1 Expósito, José
A1 Robles-Fernández, Inmaculada
A1 Entrala-Bernal, Carmen
A1 Lorente, José A
A1 Cózar-Olmo, José M
A1 Serrano, María J
K1 androgen receptor
K1 circulating tumor cells
K1 epidermal growth factor receptor
K1 prostate cancer
K1 single nucleotide polymorphisms
AB Circulating tumor cells (CTCs) have been recently accepted as prognostic markers in metastatic prostate cancer (PCa). However, very few studies have analyzed their role in early-stage PCa. The aim of this research is to study the value of CTCs at the moment of PCa diagnosis and to identify different subpopulations of CTCs. Patients with PSA value > 4 ng/ml and clinical suspicion of PCa were included. Samples were collected immediately before prostatic biopsy. CTCs were isolated by immunomagnetic technique using a multi-CK specific antibody. Molecular expression of EGFR and AR in the tissue was analysed by real-time PCR. Up to eight different SNPs in patients' blood DNA were studied. In a total of 86 patients, the CTC detection rate was 18.6%. The sensitivity, specificity, positive and negative predictive values of CTCs to detect PCa was 14.2%, 78.4%, 31.2% and 57.4%, respectively. Up to 75% of CTC-positive patients were AR-negative. A direct association was found between the expression of AR in the prostatic tissue and the presence of CTCs in blood (p 4 ng/ml and clinical suspicion of PCa were included. Samples were collected immediately before prostatic biopsy. CTCs were isolated by immunomagnetic technique using a multi-CK specific antibody. Molecular expression of EGFR and AR in the tissue was analysed by real-time PCR. Up to eight different SNPs in patients' blood DNA were studied. In a total of 86 patients, the CTC detection rate was 18.6%. The sensitivity, specificity, positive and negative predictive values of CTCs to detect PCa was 14.2%, 78.4%, 31.2% and 57.4%, respectively. Up to 75% of CTC-positive patients were AR-negative. A direct association was found between the expression of AR in the prostatic tissue and the presence of CTCs in blood (p
YR 2017
FD 2017-07-31
LK https://hdl.handle.net/10668/25137
UL https://hdl.handle.net/10668/25137
LA en
DS RISalud
RD Apr 6, 2025