The long non-coding RNA HOXB-AS3 regulates ribosomal RNA transcription in NPM1-mutated acute myeloid leukemia

Dimitrios Papaioannou, Andreas Petri, Oliver M Dovey, Sara Terreri, Eric Wang, Frances A Collins, Lauren A Woodward, Allison E Walker, Deedra Nicolet, Felice Pepe, Prasanthi Kumchala, Marius Bill, Christopher J Walker, Malith Karunasiri, Krzysztof Mrózek, Miranda L Gardner, Virginia Camilotto, Nina Zitzer, Jonathan L Cooper, Xiongwei CaiXiaoqing Rong-Mullins, Jessica Kohlschmidt, Kellie J Archer, Michael A Freitas, Yi Zheng, Robert J Lee, Iannis Aifantis, George Vassiliou, Guramrit Singh, Sakari Kauppinen, Clara D Bloomfield, Adrienne M Dorrance, Ramiro Garzon

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Abstract

Long non-coding RNAs (lncRNAs) are important regulatory molecules that are implicated in cellular physiology and pathology. In this work, we dissect the functional role of the HOXB-AS3 lncRNA in patients with NPM1-mutated (NPM1mut) acute myeloid leukemia (AML). We show that HOXB-AS3 regulates the proliferative capacity of NPM1mut AML blasts in vitro and in vivo. HOXB-AS3 is shown to interact with the ErbB3-binding protein 1 (EBP1) and guide EBP1 to the ribosomal DNA locus. Via this mechanism, HOXB-AS3 regulates ribosomal RNA transcription and de novo protein synthesis. We propose that in the context of NPM1 mutations, HOXB-AS3 overexpression acts as a compensatory mechanism, which allows adequate protein production in leukemic blasts.

Original languageEnglish
Article number5351
JournalNature Communications
Volume10
Issue number1
Number of pages15
ISSN2041-1723
DOIs
Publication statusPublished - 25 Nov 2019

Bibliographical note

Publisher Correction:
"The original version of this Article contained an error in the author affiliations.
Affiliation number 9 incorrectly read “Department of Molecular Medicine, University of Pavia, Pavia, USA”
This has now been corrected in both the PDF and HTML versions of the Article."
(Nat Commun 11:204 (2020). https://doi.org/10.1038/s41467-019-13969-7).

Author Correction:
"The original version of this article omitted the following from the Acknowledgements: R.G. was supported by a Scholar in Clinical Research award from The Leukemia & Lymphoma Society."
This has now been corrected in both the PDF and HTML versions of the article.
(Nat Commun 11:3878 (2020). https://doi.org/10.1038/s41467-020-17746-9.

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