0000000000318977
AUTHOR
Guro E. Lind
miR-486-5p expression is regulated by DNA methylation in osteosarcoma.
Abstract Background Osteosarcoma is the most common primary malignant tumour of bone occurring in children and young adolescents and is characterised by complex genetic and epigenetic changes. The miRNA miR-486-5p has been shown to be downregulated in osteosarcoma and in cancer in general. Results To investigate if the mir-486 locus is epigenetically regulated, we integrated DNA methylation and miR-486-5p expression data using cohorts of osteosarcoma cell lines and patient samples. A CpG island in the promoter of the ANK1 host gene of mir-486 was shown to be highly methylated in osteosarcoma cell lines as determined by methylation-specific PCR and direct bisulfite sequencing. High methylati…
Additional file 1 of miR-486-5p expression is regulated by DNA methylation in osteosarcoma
Additional file 1: Supplementary Table S1. Overview of TaqMan assays for miRNA and mRNA qRT-PCR experiments. Supplementary Table S2. Primers used for qualitative Methylation-Specific Polymerase Chain Reaction (MSP), bisulfite sequencing (BS) and quantitative Methylation-Specific Polymerase Chain Reaction (qMSP). Supplementary Figure S1. Genomic overview of the mir-486/ANK1 locus. Supplementary Figure S2. Expression of ANK1 transcript variants in untreated and 5-Aza treated osteosarcoma cell lines. Supplementary Figure S3. Methylation level of miR-486 as assessed by methylation specific PCR (MSP).