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    Nat Rev Mol Cell Biol. 2005 Jan;6(1):69-78.

    RNA polymerases I and III, growth control and cancer.

    Source

    Institute of Biomedical and Life Sciences, Division of Biochemistry and Molecular Biology, University of Glasgow, Glasgow, G12 8QQ, UK. rwhite@udcf.gla.ac.uk

    Abstract

    Transcription of rRNA and tRNA genes by RNA polymerases I and III is essential for sustained protein synthesis and is therefore a fundamental determinant of the capacity of a cell to grow. When cell growth is not required, this transcription is repressed by retinoblastoma protein, p53 and ARF. However, inactivation of these tumour suppressors in cancers deregulates RNA polymerases I and III, and oncoproteins such as Myc can stimulate these systems further. Such events might have a significant impact on the growth potential of tumours.

    PMID:
    15688068
    [PubMed - indexed for MEDLINE]

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