Article ; Online: MiR-548 K regulatory effect on the ABCG2 gene expression in MDR breast cancer cells.
Cancer reports (Hoboken, N.J.)
2023 Volume 6, Issue 6, Page(s) e1816
Abstract: Background: multidrug resistance (MDR) is One of the foremost challenges in overcoming breast cancer. Various molecular processes are involved in the development of MDR in breast cancer cells, including over expression of ABC transporters such as ABCG2 ( ...
Abstract | Background: multidrug resistance (MDR) is One of the foremost challenges in overcoming breast cancer. Various molecular processes are involved in the development of MDR in breast cancer cells, including over expression of ABC transporters such as ABCG2 (BCRP), increase breast cancer stem cells drug resistance, and epithelial mesenchymal transition. Aims: In the present study, we used bioinformatics and experimental analysis to investigate the role of miR-548 K, in the modulating of ABCG2, in MDR breast cancer cells. Methods and results: In silico inspections introduce 14 microRNAs targeting 3'-UTR region of ABCG2 transcripts, which are probably involved in breast cancer drug resistance. An association was highlighted between miR-548 k with ABC transporter family. The expression level of ABCG2 gene in MCF7-MX cell lines was significantly more than MCF7 cell lines. On the other hand, we increased the expression of miR-548 K in MCF7-MX and MCF7 cell lines through its transfection, which dramatically coincided with decreasion in the ABCG2 transcripts level. Additional studies on patient samples revealed that the expression of ABCG2 showed an increase in ABCG2 level in neoadjuvant chemotherapy drugs resistance (NCDR) patients compared to primary pre-operative chemotherapy drugs response (PCDR) patients. Also, a reduction in the expression of miR-548 K in NCDR patients was revealed. Conclusion: The results of our study suggest that miR-548 K may be involved in modulating the expression of ABCG2 in MDR breast cancer cells. |
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MeSH term(s) | Humans ; Female ; Breast Neoplasms/drug therapy ; Breast Neoplasms/genetics ; ATP Binding Cassette Transporter, Subfamily G, Member 2/genetics ; ATP Binding Cassette Transporter, Subfamily G, Member 2/metabolism ; Cell Line, Tumor ; Neoplasm Proteins/genetics ; Neoplasm Proteins/metabolism ; Drug Resistance, Multiple/genetics ; MicroRNAs/genetics ; ATP-Binding Cassette Transporters/genetics ; ATP-Binding Cassette Transporters/pharmacology ; Gene Expression |
Chemical Substances | ATP Binding Cassette Transporter, Subfamily G, Member 2 ; Neoplasm Proteins ; MicroRNAs ; ATP-Binding Cassette Transporters ; ABCG2 protein, human ; MIRN548 microRNA, human |
Language | English |
Publishing date | 2023-05-11 |
Publishing country | United States |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ISSN | 2573-8348 |
ISSN (online) | 2573-8348 |
DOI | 10.1002/cnr2.1816 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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