RT Journal Article T1 Circulating Tumor Cells Enumeration from the Portal Vein for Risk Stratification in Early Pancreatic Cancer Patients. A1 Padillo-Ruiz, Javier A1 Suarez, Gonzalo A1 Pereira, Sheila A1 Calero-Castro, Francisco Jose A1 Tinoco, Jose A1 Marin, Luis A1 Bernal, Carmen A1 Cepeda-Franco, Carmen A1 Alamo, Jose Maria A1 Almoguera, Francisco A1 Macher, Hada C A1 Villanueva, Paula A1 Garcia-Fernandez, Francisco Jose A1 Gallego, Inmaculada A1 Romero, Manuel A1 Gomez-Bravo, Miguel Angel A1 Denninghoff, Valeria A1 Serrano, MarĂ­a Jose K1 central venous catheter K1 circulating tumor cell K1 cluster K1 death risk stratification K1 early stage K1 pancreatic cancer K1 portal vein AB Effective biomarkers are needed to enable personalized medicine for pancreatic cancer patients. This study analyzes the prognostic value, in early pancreatic cancer, of single circulating tumor cell (CTC) and CTC clusters from the central venous catheter (CVC) and portal blood (PV). In total, 7 mL of PV and CVC blood from 35 patients with early pancreatic cancer were analyzed. CTC were isolated using a positive immunomagnetic selection. The detection and identification of CTC were performed by immunocytochemistry (ICC) and were analyzed by Epi-fluorescence and confocal microscopy. CTC and the clusters were detected both in PV and CVC. In both samples, the CTC number per cluster was higher in patients with grade three or poorly differentiated tumors (G3) than in patients with well (G1) or moderately (G2) differentiated. Patients with fewer than 185 CTC in PV exhibited a longer OS than patients with more than 185 CTC (24.5 vs. 10.0 months; p = 0.018). Similarly, patients with fewer than 15 clusters in PV showed a longer OS than patients with more than 15 clusters (19 vs. 10 months; p = 0.004). These significant correlations were not observed in CVC analyses. CTC presence in PV could be an important prognostic factor to predict poor prognosis in early pancreatic cancer. In addition, the number of clustered-CTC correlate to a tumor negative differentiation degree and, therefore, could be used as a diagnostic biomarker for pancreatic cancer. PB MDPI AG SN 2072-6694 YR 2021 FD 2021-12-07 LK https://hdl.handle.net/10668/26368 UL https://hdl.handle.net/10668/26368 LA en NO Padillo-Ruiz J, Suarez G, Pereira S, Calero-Castro FJ, Tinoco J, Marin L, et al. Circulating Tumor Cells Enumeration from the Portal Vein for Risk Stratification in Early Pancreatic Cancer Patients. Cancers (Basel). 2021 Dec 7;13(24):6153. DS RISalud RD Apr 12, 2025