Journal
CELL BIOLOGY INTERNATIONAL
Volume 45, Issue 8, Pages 1583-+Publisher
WILEY
DOI: 10.1002/cbin.11600
Keywords
cancer; long noncoding RNA; noncoding RNA; P53; regulatory network; tumor genetic
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Funding
- Tabriz University of Medical Sciences [65951]
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The protein p53 plays a crucial role in tumor suppression and interacts with long noncoding RNAs (lncRNAs) to control cancer progression by regulating cell cycle and apoptosis. Understanding the crosstalk between p53 and lncRNAs is important for elucidating the mechanisms of various cancers.
The protein p53 as a transcription factor with strong tumor-suppressive activities is known to trigger apoptosis via multiple pathways and is directly involved in the recognition of DNA damage and DNA repair processes. P53 alteration is now recognized as a common event in the pathogenesis of many types of human malignancies. Deregulation of tumor suppressor p53 pathways plays an important role in the activation of cell proliferation or inactivation of apoptotic cell death during carcinogenesis and tumor progression. Mounting evidence indicates that the p53 status of tumors and also the regulatory functions of p53 may be relevant to the long noncoding RNAs (lncRNA)-dependent gene regulation programs. Besides coding genes, lncRNAs that do not encode for proteins are induced or suppressed by p53 transcriptional response and thus control cancer progression. LncRNAs also have emerged as key regulators that impinge on the p53 signaling network orchestrating global gene-expression profile. Studies have suggested that aberrant expression of lncRNAs as a molecular-genomic signature may play important roles in cancer biology. Accordingly, it is important to elucidate the mechanisms by which the crosstalk between lncRNAs and p53 occurs in the development of numerous cancers. Here, we review how several classes of lncRNAs and p53 pathways are linked together in controlling the cell cycle and apoptosis in various cancer cells in both human and mouse model systems.
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