AIM: To investigate the feasibility of separation and cultivation of circulating tumor cells (CTCs) in pancreatic cancer (PaC) using a filtration device. METHODS: In total, 24 PaC patients who were candidates for surgical treatment were enrolled into the study. Peripheral blood samples were collected before an indicated surgery. For each patient, approximately 8 mL of venous blood was drawn from the antecubital veins. A new size-based separation MetaCell technology was used for enrichment and cultivation of CTCs in vitro. (Separated CTCs were cultured on a membrane in FBS enriched RPMI media and observed by inverted microscope. The cultured cells were analyzed by means of histochemistry and immunohistochemistry using the specific antibodies to identify the cell origin. RESULTS: CTCs were detected in 16 patients (66.7%) of the 24 evaluable patients. The CTC positivity did not reflect the disease stage, tumor size, or lymph node involvement. The same percentage of CTC positivity was observed in the metastatic and non-metastatic patients (66.7% vs 66.7%). We report a successful isolation of CTCs in PaC patients capturing proliferating cells. The cells were captured by a capillary action driven size-based filtration approach that enabled cells cultures from the viable CTCs to be unaffected by any antibodies or lysing solutions. The captured cancer cells displayed plasticity which enabled some cells to invade the separating membrane. Further, the cancer cells in the "bottom fraction", may represent a more invasive CTC-fraction. The CTCs were cultured in vitro for further downstream applications. CONCLUSION: The presented size-based filtration method enables culture of CTCs in vitro for possible downstream applications.

• Klíčová slova
• Biomarker, Circulating tumor cells, Cultivation, Pancreatic cancer,
• MeSH
• fenotyp MeSH
• filtrace přístrojové vybavení   MeSH
• invazivní růst nádoru MeSH
• lidé MeSH
• membrány umělé * MeSH
• nádorové biomarkery metabolismus   MeSH
• nádorové buňky kultivované MeSH
• nádorové cirkulující buňky metabolismus   patologie   MeSH
• nádory slinivky břišní krev   metabolismus   patologie   MeSH
• pohyb buněk MeSH
• polykarboxylátový cement MeSH
• poréznost MeSH
• proliferace buněk MeSH
• separace buněk přístrojové vybavení   MeSH
• studie proveditelnosti MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• hodnotící studie MeSH
• práce podpořená grantem MeSH
• Názvy látek
• membrány umělé * MeSH
• nádorové biomarkery MeSH
• polycarbonate MeSH Prohlížeč
• polykarboxylátový cement MeSH