Functional integration of microRNAs into oncogenic and tumor suppressor pathways.

Functional integration of microRNAs into oncogenic and tumor suppressor pathways.
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DOI:
10.4161/cc.7.16.6452
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发表时间:
2008-08-15
期刊:
Cell cycle (Georgetown, Tex.)
影响因子:
--
通讯作者:
Mendell JT
Mendell JT
中科院分区:
其他
文献类型:
--
作者:
Lotterman CD;Kent OA;Mendell JT

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大量的证据已经证明了在各种人类恶性肿瘤中异常的microRNA(miRNA)表达模式。鉴于miRNA表达在发育和细胞分化过程中受到严格调控,癌细胞中的异常miRNA表达可能部分是伴随恶性转化的正常细胞身份丧失的结果。尽管如此,现在已经清楚的是,miRNAs作为几个典型的致癌和肿瘤抑制途径的关键效应子发挥作用,包括由Myc和p53控制的那些。癌细胞中这些因子的功能获得和丧失导致miRNA失调,直接影响肿瘤表型,包括细胞增殖和凋亡。
A large body of evidence has documented abnormal microRNA (miRNA) expression patterns in diverse human malignancies. Given that miRNA expression is tightly regulated during development and cellular differentiation, aberrant miRNA expression in cancer cells is likely to be in part a consequence of the loss of normal cellular identity that accompanies malignant transformation. Nevertheless, it is now clear that miRNAs function as critical effectors of several canonical oncogenic and tumor suppressor pathways, including those controlled by Myc and p53. Gain- and loss-of-function of these factors in cancer cells contributes to miRNA dysregulation, directly influencing neoplastic phenotypes including cellular proliferation and apoptosis.
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