Open AccessJournal Article
Oncomirs : microRNAs with a role in cancer
TLDR
I MicroRNAs (miRNAs) are an abundant class of small non-protein-coding RNAs that function as negative gene regulators as discussed by the authors, and have been shown to repress the expression of important cancer-related genes and might prove useful in the diagnosis and treatment of cancer.Abstract:
I MicroRNAs (miRNAs) are an abundant class of small non-protein-coding RNAs that function as negative gene regulators. They regulate diverse biological processes, and bioinformatic data indicates that each miRNA can control hundreds of gene targets, underscoring the potential influence of miRNAs on almost every genetic pathway. Recent evidence has shown that miRNA mutations or mis-expression correlate with various human cancers and indicates that miRNAs can function as tumour suppressors and oncogenes. miRNAs have been shown to repress the expression of important cancer-related genes and might prove useful in the diagnosis and treatment of cancer.read more
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Circulating microRNAs as stable blood-based markers for cancer detection
Patrick S. Mitchell,Rachael K. Parkin,Evan M. Kroh,Brian R. Fritz,Brian R. Fritz,Stacia K. Wyman,Era L. Pogosova-Agadjanyan,Amelia Peterson,Jennifer Noteboom,Kathy O'Briant,April Allen,Daniel W. Lin,Daniel W. Lin,Daniel W. Lin,Nicole Urban,Charles W. Drescher,Beatrice S. Knudsen,Derek L. Stirewalt,Robert Gentleman,Robert L. Vessella,Robert L. Vessella,Peter S. Nelson,Daniel Martin,Daniel Martin,Muneesh Tewari +24 more
TL;DR: It is shown here that miRNAs are present in human plasma in a remarkably stable form that is protected from endogenous RNase activity and established the measurement of tumor-derived mi RNAs in serum or plasma as an important approach for the blood-based detection of human cancer.
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MicroRNA signatures in human cancers
George A. Calin,Carlo M. Croce +1 more
TL;DR: The causes of the widespread differential expression of miRNA genes in malignant compared with normal cells can be explained by the location of these genes in cancer-associated genomic regions, by epigenetic mechanisms and by alterations in the miRNA processing machinery as discussed by the authors.
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Mechanisms of post-transcriptional regulation by microRNAs: are the answers in sight?
TL;DR: This Review summarizes the current understanding of the mechanistic aspects of microRNA-induced repression of translation and discusses some of the controversies regarding different modes of micro RNA function.
Journal ArticleDOI
Characterization of microRNAs in serum: a novel class of biomarkers for diagnosis of cancer and other diseases
Xi Chen,Yi Ba,Lijia Ma,Lijia Ma,Xing Cai,Yuan Yin,Kehui Wang,Jigang Guo,Yujing Zhang,Jiangning Chen,Xing Guo,Qibin Li,Qibin Li,Xiaoying Li,Wenjing Wang,Yan Zhang,Jin Wang,Xueyuan Jiang,Yang Xiang,Chen Xu,Pingping Zheng,Juanbin Zhang,Ruiqiang Li,Hongjie Zhang,Xiaobin Shang,Ting Gong,Guang Ning,Jun Wang,Jun Wang,Ke Zen,Junfeng Zhang,Chen-Yu Zhang +31 more
TL;DR: It is demonstrated that miRNAs are present in the serum and plasma of humans and other animals such as mice, rats, bovine fetuses, calves, and horses, and can serve as potential biomarkers for the detection of various cancers and other diseases.
Journal ArticleDOI
Non-coding RNAs in human disease
TL;DR: Dysregulation of these ncRNAs is being found to have relevance not only to tumorigenesis, but also to neurological, cardiovascular, developmental and other diseases, and there is great interest in therapeutic strategies to counteract these perturbations.
References
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c-MYC-regulated micro RNAs modulate E2F1 expression
TL;DR: In this article, the proto-oncogene c-myc was found to activate expression of a cluster of six miRNAs on human chromosome 13 and showed that miR-17-5p and miR20a are negatively regulated by E2F1.
Journal ArticleDOI
The Microprocessor complex mediates the genesis of microRNAs
Richard I. Gregory,Kai Ping Yan,Govindasamy Amuthan,Thimmalah Chendrimada,Behzad Doratotaj,Neil Cooch,Ramin Shiekhattar +6 more
TL;DR: In vivo knock-down and in vitro reconstitution studies revealed that both components of this smaller complex, termed Microprocessor, are necessary and sufficient in mediating the genesis of miRNAs from the primary miRNA transcript.
Journal ArticleDOI
Nuclear Export of MicroRNA Precursors
TL;DR: Exposure of Exportin-5 (Exp5) mediates efficient nuclear export of short miRNA precursors (pre-miRNAs) and its depletion by RNA interference results in reduced miRNA levels.
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Functional siRNAs and miRNAs Exhibit Strand Bias
TL;DR: The results suggest that the thermodynamic properties of siRNA play a critical role in determining the molecule's function and longevity, possibly biasing the steps involved in duplex unwinding and strand retention by RISC.
Journal ArticleDOI
Processing of primary microRNAs by the Microprocessor complex
TL;DR: A role for Pasha is indicated in miRNA maturation and miRNA-mediated gene regulation in mature microRNAs and in the post-transcriptional level.
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