LINC00520 is induced by Src, STAT3, and PI3K and plays a functional role in breast cancer

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LINC00520 is induced by Src, STAT3, and PI3K and plays a functional role in breast cancer

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Title: LINC00520 is induced by Src, STAT3, and PI3K and plays a functional role in breast cancer
Author: Henry, Whitney S.; Hendrickson, David G.; Beca, Francisco; Glass, Benjamin; Lindahl-Allen, Marianne; He, Lizhi; Ji, Zhe; Struhl, Kevin; Beck, Andrew H.; Rinn, John L.; Toker, Alex

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Citation: Henry, W. S., D. G. Hendrickson, F. Beca, B. Glass, M. Lindahl-Allen, L. He, Z. Ji, et al. 2016. “LINC00520 is induced by Src, STAT3, and PI3K and plays a functional role in breast cancer.” Oncotarget 7 (50): 81981-81994. doi:10.18632/oncotarget.11962. http://dx.doi.org/10.18632/oncotarget.11962.
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Abstract: Long non-coding RNAs (lncRNAs) have been implicated in normal cellular homeostasis as well as pathophysiological conditions, including cancer. Here we performed global gene expression profiling of mammary epithelial cells transformed by oncogenic v-Src, and identified a large subset of uncharacterized lncRNAs potentially involved in breast cancer development. Specifically, our analysis revealed a novel lncRNA, LINC00520 that is upregulated upon ectopic expression of oncogenic v-Src, in a manner that is dependent on the transcription factor STAT3. Similarly, LINC00520 is also increased in mammary epithelial cells transformed by oncogenic PI3K and its expression is decreased upon knockdown of mutant PIK3CA. Additional expression profiling highlight that LINC00520 is elevated in a subset of human breast carcinomas, with preferential enrichment in the basal-like molecular subtype. ShRNA-mediated depletion of LINC00520 results in decreased cell migration and loss of invasive structures in 3D. RNA sequencing analysis uncovers several genes that are differentially expressed upon ectopic expression of LINC00520, a significant subset of which are also induced in v-Src-transformed MCF10A cells. Together, these findings characterize LINC00520 as a lncRNA that is regulated by oncogenic Src, PIK3CA and STAT3, and which may contribute to the molecular etiology of breast cancer.
Published Version: doi:10.18632/oncotarget.11962
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5347668/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:32072115
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