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. 2012:2012:732874.
doi: 10.1155/2012/732874. Epub 2012 Jul 10.

MicroRNAs in Human Malignant Gliomas

Masahiro Mizoguchi  1 , Yanlei Guan, Koji Yoshimoto, Nobuhiro Hata, Toshiyuki Amano, Akira Nakamizo, Tomio Sasaki
Affiliations

MicroRNAs in Human Malignant Gliomas

Masahiro Mizoguchi et al. J Oncol. 2012.

Abstract

MicroRNA (miRNA) is a new class of small noncoding RNA molecules that regulate a wide spectrum of gene expression in a posttranscriptional manner. MiRNAs play crucial roles in tumorigenesis, angiogenesis, invasion, and apoptosis for various types of tumor. Recent studies have identified dysregulation of specific miRNAs in malignant gliomas. Global expression profiling of miRNAs has revealed several miRNAs clinically implicated in human glioblastomas. Some miRNAs are clearly associated with clinical outcome and chemo- and radio-therapy resistance in these tumors. Furthermore, miRNAs also regulate specific signaling pathways, including the critical core pathways in glioblastoma. As a result, miRNAs have the potential to affect the responses to molecular-targeted therapies. More recent studies have revealed that miRNAs might be associated with cancer stem cell properties, affecting tumor maintenance and progression. Recent investigation have revealed that miRNAs are not only biological markers with diagnostic implications, but also one of the most promising treatment targets in human glioblastoma. Herein, we summarized the novel insights of miRNAs into human malignant gliomas.

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