Down-Regulation of miR-200c and Up-Regulation of miR-30c Target both Stemness and Metastasis Genes in Breast Cancer

Autor: Mahsa Rahimi, Ali Sharifi-Zarchi, Nosratollah Zarghami, Lobat Geranpayeh, Marzieh Ebrahimi, Effat Alizadeh
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Cell Journal, Vol 21, Iss 4, Pp 467-478 (2019)
Druh dokumentu: article
ISSN: 2228-5806
2228-5814
DOI: 10.22074/cellj.2020.6406
Popis: Objective: microRNAs (miRNAs) play important role in progression of tumorigenesis. They can target self-renewal and epithelial-mesenchymal transition (EMT) abilities in tumor cells, especially in cancer stem cells (CSCs). The objective of this study was to implement data mining to identify important miRNAs for targeting both self-renewal and EMT. We also aimed to evaluate these factors in mammospheres as model of breast cancer stem cells (BCSCs) and metastatic tumor tissues. Materials and Methods: In this experimental study, mammospheres were derived from MCF-7 cells and characterized for the CSCs properties. Then expression pattern of the selected miRNAs in spheroids were evaluated, using the breast tumor cells obtained from seven patients. Correlation of miRNAs with self-renewal and EMT candidate genes were assessed in mammospheres and metastatic tumors. Results: The results showed that mammospheres represented more colonogenic and spheroid formation potential than MCF-7 cells (P
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