Transcriptomics

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Treatment of MM cells with IMiDs or reducing the expression of EIF2C2 significantly affects steady-state levels of miRNAs


ABSTRACT: Lenalidomide is a therapeutically active compound that binds to E3 ubiquitin ligase recruiter cereblon (CRBN) and induces cytotoxicity. We have identified eukaryotic translation initiation factor 2 subunit C2 (EIF2C2) as a new member of CRBN-downstream binding protein that plays an important role in microRNA (miRNA) maturation and function. The treatment of immunomodulatory drug (IMiD)-sensitive multiple myeloma (MM) cells with lenalidomide altered the steady-state levels of CRBN, EIF2C2 and miRNAs and induced apoptosis. However, although the treatment of IMiD-resistant MM cells with lenalidomide altered the steady-state levels of CRBN, EIF2C2 and miRNAs, but did not massively induce apoptosis. In contrast, silencing of EIF2C2 with its small hairpin RNA significantly altered the levels of miRNAs and induced apoptosis regardless of whether those cells are sensitive or resistant to IMiDs. Therefore, EIF2C2 could be considered as a new drug target for overcoming IMiDs resistance in MM cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE61693 | GEO | 2016/03/09

SECONDARY ACCESSION(S): PRJNA261853

REPOSITORIES: GEO

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