Posttranscriptional regulation of PTEN dosage by noncoding RNAs.
Posttranscriptional regulation of PTEN dosage by noncoding RNAs.
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DOI:
10.1126/scisignal.3146pe39
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发表时间:
2010-11-02
影响因子:
7.3
通讯作者:
He L
中科院分区:
文献类型:
--
作者:
He L
The classic “two-hit” model of tumor suppressor inactivation, originally established by mathematical modeling of cancer incidence, implies that tumorigenesis requires complete loss of function of tumor suppressor genes. While this is true in some tumor types, the exact nature of tumor suppressor deregulation varies depending on tissue type, stage of cancer development, nature of co-exisiting molecular lesions, and environmental factors. Emerging evidence has indicated the functional importance of PTEN dosage during tumor development. Among the key regulators of PTEN dosage are a number of non-coding RNAs, including microRNAs (miRNAs) and pseudogenes, which regulate PTEN expression at the post-transcriptional level. Recent studies have revealed the functional importance of these PTEN-targeting non-coding RNAs during tumor development, and have provided a paradigm to explore the molecular mechanisms underlying the dosage-dependent effects of key oncogenes and tumor suppressors.
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