Journal
ONCOTARGET
Volume 6, Issue 10, Pages 8353-8365Publisher
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.3229
Keywords
HOTAIR; NLK (Nemo-like kinase); beta-catenin; PRC2 (Polycomb repressive complex 2); Glioblastoma
Categories
Funding
- National High Technology Research and Development Program 863 [2014AA021102, 2012AA02A508]
- China National Natural Scientific Found [81372703, 91229121, 81101916, 51103107]
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HOTAIR is a negative prognostic factor and is overexpressed in multiple human cancers including glioblastoma multiform (GBM). Survival analysis of Chinese Glioma Genome Atlas (CGGA) patient data indicated that high HOTAIR expression was associated with poor outcome in GBM patients. NLK (Nemo-like kinase), a negative regulator of the beta-catenin pathway, was negatively correlated with HOTAIR expression. When the beta-catenin pathway was inhibited, GBM cells became susceptible to cell cycle arrest and inhibition of invasion. Introduction of the HOTAIR 5' domain in human glioma-derived astrocytoma induced beta-catenin. An intracranial animal model was used to confirm that HOTAIR depletion inhibited GBM cell migration/invasion. In the orthotopic model, HOTAIR was required for GBM formation in vivo. In summary, HOTAIR is a potential therapeutic target in GBM.
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