Nature, volume 541, issue 7636, pages 228-232

mTORC1 and muscle regeneration are regulated by the LINC00961-encoded SPAR polypeptide

MATSUMOTO Akinobu 1
Pasut Alessandra 1
Matsumoto Masaki 2
Yamashita Riu 3
Fung Jacqueline 1
Monteleone Emanuele 1, 4
Saghatelian Alan 5
Nakayama Keiichi I. 2
Clohessy John G 1
Pandolfi Pier Paolo 1
1
 
Department of Medicine and Pathology, Cancer Research Institute, Beth Israel Deaconess Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
2
 
Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
3
 
Department of BioBank, Tohoku Medical Megabank Organization (ToMMo), Tohoku University, Sendai, Japan
5
 
The Clayton Foundation Laboratories for Peptide Biology, Helmsley Center for Genomic Medicine, Salk Institute for Biological Studies, La Jolla, USA
Publication typeJournal Article
Publication date2016-12-26
Journal: Nature
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor64.8
ISSN00280836, 14764687
Multidisciplinary
Abstract
Although long non-coding RNAs (lncRNAs) are non-protein-coding transcripts by definition, recent studies have shown that a fraction of putative small open reading frames within lncRNAs are translated. However, the biological significance of these hidden polypeptides is still unclear. Here we identify and functionally characterize a novel polypeptide encoded by the lncRNA LINC00961. This polypeptide is conserved between human and mouse, is localized to the late endosome/lysosome and interacts with the lysosomal v-ATPase to negatively regulate mTORC1 activation. This regulation of mTORC1 is specific to activation of mTORC1 by amino acid stimulation, rather than by growth factors. Hence, we termed this polypeptide ‘small regulatory polypeptide of amino acid response’ (SPAR). We show that the SPAR-encoding lncRNA is highly expressed in a subset of tissues and use CRISPR/Cas9 engineering to develop a SPAR-polypeptide-specific knockout mouse while maintaining expression of the host lncRNA. We find that the SPAR-encoding lncRNA is downregulated in skeletal muscle upon acute injury, and using this in vivo model we establish that SPAR downregulation enables efficient activation of mTORC1 and promotes muscle regeneration. Our data provide a mechanism by which mTORC1 activation may be finely regulated in a tissue-specific manner in response to injury, and a paradigm by which lncRNAs encoding small polypeptides can modulate general biological pathways and processes to facilitate tissue-specific requirements, consistent with their restricted and highly regulated expression profile.

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MATSUMOTO A. et al. mTORC1 and muscle regeneration are regulated by the LINC00961-encoded SPAR polypeptide // Nature. 2016. Vol. 541. No. 7636. pp. 228-232.
GOST all authors (up to 50) Copy
MATSUMOTO A., Pasut A., Matsumoto M., Yamashita R., Fung J., Monteleone E., Saghatelian A., Nakayama K. I., Clohessy J. G., Pandolfi P. P. mTORC1 and muscle regeneration are regulated by the LINC00961-encoded SPAR polypeptide // Nature. 2016. Vol. 541. No. 7636. pp. 228-232.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/nature21034
UR - https://doi.org/10.1038%2Fnature21034
TI - mTORC1 and muscle regeneration are regulated by the LINC00961-encoded SPAR polypeptide
T2 - Nature
AU - MATSUMOTO, Akinobu
AU - Pasut, Alessandra
AU - Matsumoto, Masaki
AU - Yamashita, Riu
AU - Fung, Jacqueline
AU - Monteleone, Emanuele
AU - Saghatelian, Alan
AU - Nakayama, Keiichi I.
AU - Clohessy, John G
AU - Pandolfi, Pier Paolo
PY - 2016
DA - 2016/12/26 00:00:00
PB - Springer Nature
SP - 228-232
IS - 7636
VL - 541
SN - 0028-0836
SN - 1476-4687
ER -
BibTex |
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BibTex Copy
@article{2016_MATSUMOTO,
author = {Akinobu MATSUMOTO and Alessandra Pasut and Masaki Matsumoto and Riu Yamashita and Jacqueline Fung and Emanuele Monteleone and Alan Saghatelian and Keiichi I. Nakayama and John G Clohessy and Pier Paolo Pandolfi},
title = {mTORC1 and muscle regeneration are regulated by the LINC00961-encoded SPAR polypeptide},
journal = {Nature},
year = {2016},
volume = {541},
publisher = {Springer Nature},
month = {dec},
url = {https://doi.org/10.1038%2Fnature21034},
number = {7636},
pages = {228--232},
doi = {10.1038/nature21034}
}
MLA
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MLA Copy
MATSUMOTO, Akinobu, et al. “mTORC1 and muscle regeneration are regulated by the LINC00961-encoded SPAR polypeptide.” Nature, vol. 541, no. 7636, Dec. 2016, pp. 228-232. https://doi.org/10.1038%2Fnature21034.
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