期刊
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
卷 -, 期 150, 页码 -出版社
JOURNAL OF VISUALIZED EXPERIMENTS
DOI: 10.3791/59322
关键词
Cancer Research; Issue 150; miRNA inhibitor; thyroid; tumor growth; mouse models; miRNA-based treatment; miR-146b; thyroid cancer
资金
- MICIU [SAF2016-75531-R]
- Fondo Europeo de Desarrollo Regional FEDER
- Comunidad de Madrid [B2017/BMD-3724]
- Fundacion Espanola contra el Cancer, AECC [GCB14142311CRES]
MicroRNAs (miRNAs) are important regulators of gene expression through their ability to destabilize mRNA and inhibit translation of target mRNAs. An ever-increasing number of studies have identified miRNAs as potential biomarkers for cancer diagnosis and prognosis, and also as therapeutic targets, adding an extra dimension to cancer evaluation and treatment. In the context of thyroid cancer, tumorigenesis results not only from mutations in important genes, but also from the overexpression of many miRNAs. Accordingly, the role of miRNAs in the control of thyroid gene expression is evolving as an important mechanism in cancer. Herein, we present a protocol to examine the effects of miRNA-inhibitor delivery as a therapeutic modality in thyroid cancer using human tumor xenograft and orthotopic mouse models. After engineering stable thyroid tumoral cells expressing GFP and luciferase, cells are injected into nude mice to develop tumors, which can be followed by bioluminescence. The in vivo inhibition of a miRNA can reduce tumor growth and upregulate miRNA gene targets. This method can be used to assess the importance of a determined miRNA in vivo, in addition to identifying new therapeutic targets.
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