Differential Expression of EGFR, MAP2K4 and E2F3 Genes as Targets of miR-141 and Its Association With Immune System Pathway

Journal of Cell and Molecular Research

مقاله 3، دوره 9، شماره 1 - شماره پیاپی 17، بهمن 2017، صفحه 6-15   

نوع مقاله: Research Articles

شناسه دیجیتال (DOI): 10.22067/jcmr.v0i0.58965

نویسندگان

Soheila shokrollahzade¹؛ Arshad Hosseini^{* 1}؛ Majid Safa¹؛ Shamim Sarhadi²

¹Iran University of Medical Sciences

²Tabriz University of Medical Sciences, Tabriz, Iran

چکیده

MicroRNAs by their structural complementarity capabilities have canonical roles in gene regulation. In this paper; we investigate expression of EGFR, MAP2K4 and E2F3 genes targeted by miR-141, a member of miR-200 family. EGFR, MAP2K4 and E2F3 were predicted as the potential targets of mir-141 by using online miRNA bioinformatics tools. MCF-7 cells were transfected with mir-141-precursor and inhibitor vectors. Expression of miR-141 and target genes was determined by using qRT-PCR. To see the most relevant pathways regulated by miR-141, we constructed two separate networks by NetworkAnalyst and enriched list of underlying genes by Enrichment analysis tools. The expression changes of all three predicted targets were higher in transfected cells with anti-mir-141 vector, compared with the control untransfected cells. By contrast, in transfected cells with pre-mir 141, we did not see significant expression changes in EGFR, E2F3 and MAP2K4. List of genes in total networks as well as explored functional modules were enriched separately. Enrichment analysis shows that immune system pathway has the strongest relationship with the proteins potentially targeted by miR-141. The present study demonstrated potential role of miR-141 in regulation of EGFR, MAP2K4 and E2F3 expression and suggested innate immunity pathways as the key pathway through which this regulatory network contributes to breast cancer development.

کلیدواژه‌ها

Key Words: Breast cancer؛ miR-141؛ EGFR؛ MAP2K4؛ E2F3

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