| Literature DB >> 17695719 |
P Mathijs Voorhoeve1, Carlos le Sage, Mariette Schrier, Ad J M Gillis, Hans Stoop, Remco Nagel, Ying-Poi Liu, Josyanne van Duijse, Jarno Drost, Alexander Griekspoor, Eitan Zlotorynski, Norikazu Yabuta, Gabriella De Vita, Hiroshi Nojima, Leendert H J Looijenga, Reuven Agami.
Abstract
Endogenous small RNAs (miRNAs) regulate gene expression by mechanisms conserved across metazoans. While the number of verified human miRNAs is still expanding, only few have been functionally annotated. To perform genetic screens for novel functions of miRNAs, we developed a library of vectors expressing the majority of cloned human miRNAs and created corresponding DNA barcode arrays. In a screen for miRNAs that cooperate with oncogenes in cellular transformation, we identified miR-372 and miR-373, each permitting proliferation and tumorigenesis of primary human cells that harbor both oncogenic RAS and active wild-type p53. These miRNAs neutralize p53-mediated CDK inhibition, possibly through direct inhibition of the expression of the tumorsuppressor LATS2. We provide evidence that these miRNAs are potential novel oncogenes participating in the development of human testicular germ cell tumors by numbing the p53 pathway, thus allowing tumorigenic growth in the presence of wild-type p53.Entities:
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Year: 2007 PMID： 17695719 DOI： 10.1007/978-0-387-69116-9_2
Source DB: PubMed Journal: Adv Exp Med Biol ISSN： 0065-2598 Impact factor: 2.622