Transcriptomics

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TLS-CHOP Fusion Oncoprotein Regulates MicroRNA-486 in Human Myxoid Liposarcoma


ABSTRACT: MicroRNAs (miRNAs, miRs) are small noncoding RNAs, which control or are controlled by the dysregulation of multiple protein-coding oncogenes or tumor suppressor genes, play important roles in carcinogenesis. Myxoid liposarcomas (MLS) are characterized by t(12;16)(q13;p11) translocation and expression of TLS/CHOP chimeric transcripts (various types) which encode different oncogenic proteins. TLS-CHOP is important for the molecular mechanisms in the development of MLS, but the involvement in microRNA expression still remain poorly understood. Thus we explored the target microRNA of TLS-CHOP influence cell-proliferation or cell death with microarray. MicroRNAs (miRNAs, miRs) are small noncoding RNAs, which control or are controlled by the dysregulation of multiple protein-coding oncogenes or tumor suppressor genes, play important roles in carcinogenesis. Myxoid liposarcomas (MLS) are characterized by t(12;16)(q13;p11) translocation and expression of TLS/CHOP chimeric transcripts (various types) which encode different oncogenic proteins. TLS-CHOP is important for the molecular mechanisms in the development of MLS, but the involvement in microRNA expression still remain poorly understood. In this study, we have found that miR-486-5p (miR-486) expression level was downregulated by ectopic expression of TLS-CHOP fusion gene in mouse fibroblast cells (NIH3T3). In addition, we found overexpression of miR-486 inhibited the cell growth in the 2645/94 cells and in situ hybridization of miR-486 showed MLS tissues had lower signal intensity compared with non-tumor tissues. Thus we explored the target genes of miR-486 influence cell-proliferation or cell death with microarray.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE36966 | GEO | 2013/03/23

SECONDARY ACCESSION(S): PRJNA157301

REPOSITORIES: GEO

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