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Expression and functions of long non-coding RNA NEAT1 and isoforms in breast cancer

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https://hdl.handle.net/10037/24685
DOI
https://doi.org/10.1038/s41416-021-01588-3
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Date
2021-10-20
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Knutsen, Erik; Harris, Adrian; Perander, Maria
Abstract
NEAT1 is a highly abundant nuclear architectural long non-coding RNA. There are two overlapping NEAT1 isoforms, NEAT1_1 and NEAT1_2, of which the latter is an essential scaffold for the assembly of a class of nuclear ribonucleoprotein bodies called paraspeckles. Paraspeckle formation is elevated by a wide variety of cellular stressors and in certain developmental processes, either through transcriptional upregulation of the NEAT1 gene or through a switch from NEAT1_1 to NEAT1_2 isoform production. In such conditions, paraspeckles modulate cellular processes by sequestering proteins or RNA molecules. NEAT1 is abnormally expressed in many cancers and a growing body of evidence suggests that, in many cases, high NEAT1 levels are associated with therapy resistance and poor clinical outcome. Here we review the current knowledge of NEAT1 expression and functions in breast cancer, highlighting its established role in postnatal mammary gland development. We will discuss possible isoform-specific roles of NEAT1_1 and NEAT1_2 in different breast cancer subtypes, which critically needs to be considered when studying NEAT1 and breast cancer.
Publisher
Springer Nature
Citation
Knutsen, Harris, Perander. Expression and functions of long non-coding RNA NEAT1 and isoforms in breast cancer. British Journal of Cancer. 2021
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