Abstract:
:Loss of miR-200c is correlated to advanced cancer-subtypes due to increased EMT and decreased treatment efficacy by chemotherapeutics. As miRNAs regulate a multitude of targets, the analysis of differentially expressed proteins upon a genomic knock-out (KO) is of interest. In this study, we generated a TALENs KO of miR-200c in MCF7 breast cancer cells, excluded its compensation by family-members and evaluated the impact on the proteome by analyzing three individual KO-clones. We identified 26 key proteins and a variety of enrichments in metabolic and cytoskeletal pathways. In six of these targets (AGR2, FLNA/B, ALDH7A1, SCIN, GSTM3) the differential expression was additionally detected at mRNA level. Together, these alterations in protein abundance accounted for the observed biological phenotypes, i.e. increased migration and chemoresistance and altered metabolism, found in the miR-200c-KO clones. These findings provide novel insights into miR-200c and pave the way for further studies.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ljepoja B,García-Roman J,Sommer AK,Fröhlich T,Arnold GJ,Wagner E,Roidl Adoi
10.1038/s41598-018-25240-ysubject
Has Abstractpub_date
2018-05-02 00:00:00pages
6927issue
1issn
2045-2322pii
10.1038/s41598-018-25240-yjournal_volume
8pub_type
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