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Microarray-based detection and expression analysis of drug resistance in an animal model of peritoneal metastasis from colon cancer.
Yagublu, Vugar; Bayramov, Bayram; Reissfelder, Christoph; Hajibabazade, Javahir; Abdulrahimli, Shalala; Keese, Michael.
Afiliação
  • Yagublu V; Department of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany. vugar.yagublu@umm.de.
  • Bayramov B; Laboratory of Human Genetics, Genetic Resources Institute of Ministry of Science and Education, Baku, Azerbaijan.
  • Reissfelder C; Department of Natural Sciences, Western Caspian University, AZ1001, Baku, Azerbaijan.
  • Hajibabazade J; Department of Surgery, Medical Faculty Mannheim, Universitätsmedizin Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
  • Abdulrahimli S; Medical Faculty Mannheim, DKFZ-Hector Cancer Institute, Heidelberg University, Mannheim, Germany.
  • Keese M; Carver College of Medicine, University of Iowa, Bowen Science Building, 51 Newton Road, Iowa City, IA, 52242-1009, USA.
Clin Exp Metastasis ; 41(5): 707-715, 2024 Oct.
Article em En | MEDLINE | ID: mdl-38609535
ABSTRACT
Chemotherapy drugs efficiently eradicate rapidly dividing differentiated cells by inducing cell death, but poorly target slowly dividing cells, including cancer stem cells and dormant cancer cells, in the later course of treatment. Prolonged exposure to chemotherapy results in a decrease in the proportion of apoptotic cells in the tumour mass. To investigate and characterize the molecular basis of this phenomenon, microarray-based expression analysis was performed to compare tHcred2-DEVD-EGFP-caspase 3-sensor transfected C-26 tumour cells that were harvested after engraftment into mice treated with or without 5-FU. Peritoneal metastasis was induced by intraperitoneal injection of C-26 cells, which were subsequently reisolated from omental metastatic tumours after the mice were sacrificed by the end of the 10th day after tumour injection. The purity of reisolated tHcred2-DEVD-EGFP-caspase 3-sensor-expressing C-26 cells was confirmed using FLIM, and total RNA was extracted for gene expression profiling. The validation of relative transcript levels was carried out via real-time semiquantitative RT‒PCR assays. Our results demonstrated that chemotherapy induced the differential expression of mediators of cancer cell dormancy and cell survival-related genes and downregulation of both intrinsic and extrinsic apoptotic signalling pathways. Despite the fact that some differentially expressed genes, such as BMP7 and Prss11, have not been thoroughly studied in the context of chemoresistance thus far, they might be potential candidates for future studies on overcoming drug resistance.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Neoplasias Peritoneais / Neoplasias do Colo / Resistencia a Medicamentos Antineoplásicos Limite: Animals / Humans Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Neoplasias Peritoneais / Neoplasias do Colo / Resistencia a Medicamentos Antineoplásicos Limite: Animals / Humans Idioma: En Ano de publicação: 2024 Tipo de documento: Article