RRC ID 35693
Author Yanagida S, Taniue K, Sugimasa H, Nasu E, Takeda Y, Kobayashi M, Yamamoto T, Okamoto A, Akiyama T.
Title ASBEL, an ANA/BTG3 antisense transcript required for tumorigenicity of ovarian carcinoma.
Journal Sci Rep
Abstract Mammalian genomes encode numerous antisense non-coding RNAs, which are assumed to be involved in the regulation of the sense gene expression. However, the mechanisms of their action and involvement in the development of diseases have not been well elucidated. The ANA/BTG3 protein is an antiproliferative protein whose expression is downregulated in prostate and lung cancers. Here we show that an antisense transcript of the ANA/BTG3 gene, termed ASBEL, negatively regulates the levels of ANA/BTG3 protein, but not of ANA/BTG3 mRNA and is required for proliferation and tumorigenicity of ovarian clear cell carcinoma. We further show that knockdown of ANA/BTG3 rescues growth inhibition caused by ASBEL knockdown. Moreover, we demonstrate that ASBEL forms duplexes with ANA/BTG3 mRNA in the nucleus and suppresses its cytoplasmic transportation. Our findings illustrate a novel function for an antisense transcript that critically promotes tumorigenesis by suppressing translation of the sense gene by inhibiting its cytoplasmic transportation.
Volume 3
Pages 1305
Published 2013-1-1
DOI 10.1038/srep01305
PII srep01305
PMID 23419616
PMC PMC3575586
MeSH Apoptosis / genetics Biological Transport Carcinoma / genetics* Carcinoma / metabolism Cell Cycle Proteins Cell Line, Tumor Cell Nucleus / metabolism Cell Transformation, Neoplastic* Cytoplasm / metabolism Female Gene Expression Regulation, Neoplastic Gene Knockdown Techniques Gene Order Humans Ovarian Neoplasms / genetics* Ovarian Neoplasms / metabolism Proteins / genetics* Proteins / metabolism RNA, Antisense* RNA, Untranslated / genetics RNA, Untranslated / metabolism Transcription, Genetic
IF 4.011
Times Cited 16
DNA material CS-RfA-CG (RDB04390) pCAG-HIVgp (RDB04394) pCMV-VSV-G-RSV-Rev (RDB04393)