Prognostic Significance of Circulating Tumor Cells with Mesenchymal Phenotypes in Patients with Gastric Cancer: A Prospective Study

Autor: Tadashi Yoshida, Norihiko Takahashi, Akinobu Taketomi, Shigenori Homma, Hideki Kawamura, Moto Fukai, Yui Ishiguro, Nobuki Ichikawa, Hideyasu Sakihama
Rok vydání: 2020
Předmět:
Zdroj: Annals of Surgical Oncology. 28:1178-1186
ISSN: 1534-4681
1068-9265
Popis: Circulating tumor cells (CTCs) have been shown to be heterogeneous. Focusing on the epithelial–mesenchymal transition and perioperative kinetics, we evaluated CTCs with mesenchymal phenotypes as a potential prognostic biomarker for patients with gastric cancer. Peripheral blood was collected from 54 patients with gastric cancer before surgery and at 1 week and 1 month after surgery. CTCs were enriched using density-gradient centrifugation and magnetic-activated cell sorting (negative selection). Cell suspensions were characterized by multi-immunofluorescence staining against cytokeratin and N-cadherin, and by 4′,6′-diamidino-2-phenyldole staining. CTCs were detected in five patients (17%) with early cancer and 14 patients (56%) with advanced cancer (p
Databáze: OpenAIRE