Genomics

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IGROV1 miRNA expression analysis after in vivo locoregional treatment with CpG-ODN


ABSTRACT: We reported that peri-tumoral CpG-ODN treatment, probably activating TLR9-expressing cells present in the tumor microenvironment, sensitized cancer cells to DNA-damaging chemotherapy (Cancer Res 2011 Oct 15;71(20):6382-90). Here, we investigated whether this treatment induces a modulation of miRNAs and their involvement in chemotherapy sensitivity. Twenty miRNAs were found differentially expressed in tumors from CpG-ODN-treated mice versus controls. Evaluation of the role of miR-424, miR-340 and miR-302b on cisplatin sensitivity revealed that ectopic expression of miR-302b (up-modulated in our array) in IGROV1 cells significantly improved cisplatin activity. The identification of miRNAs able to modify sensitivity to chemotherapy treatment will provide an experimental base for its future possible use as a target or tool of specific therapies.

ORGANISM(S): Homo sapiens

PROVIDER: GSE41783 | GEO | 2013/03/31

SECONDARY ACCESSION(S): PRJNA178168

REPOSITORIES: GEO

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