Ontology type: schema:ScholarlyArticle Open Access: True
2010-12
AUTHORSSushma Gurumurthy, Stephanie Z. Xie, Brinda Alagesan, Judith Kim, Rushdia Z. Yusuf, Borja Saez, Alexandros Tzatsos, Fatih Ozsolak, Patrice Milos, Francesco Ferrari, Peter J. Park, Orian S. Shirihai, David T. Scadden, Nabeel Bardeesy
ABSTRACTHaematopoietic stem cells (HSCs) can convert between growth states that have marked differences in bioenergetic needs. Although often quiescent in adults, these cells become proliferative upon physiological demand. Balancing HSC energetics in response to nutrient availability and growth state is poorly understood, yet essential for the dynamism of the haematopoietic system. Here we show that the Lkb1 tumour suppressor is critical for the maintenance of energy homeostasis in haematopoietic cells. Lkb1 inactivation in adult mice causes loss of HSC quiescence followed by rapid depletion of all haematopoietic subpopulations. Lkb1-deficient bone marrow cells exhibit mitochondrial defects, alterations in lipid and nucleotide metabolism, and depletion of cellular ATP. The haematopoietic effects are largely independent of Lkb1 regulation of AMP-activated protein kinase (AMPK) and mammalian target of rapamycin (mTOR) signalling. Instead, these data define a central role for Lkb1 in restricting HSC entry into cell cycle and in broadly maintaining energy homeostasis in haematopoietic cells through a novel metabolic checkpoint. More... »
PAGES659
http://scigraph.springernature.com/pub.10.1038/nature09572
DOIhttp://dx.doi.org/10.1038/nature09572
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/21124451
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JSON-LD is a popular format for linked data which is fully compatible with JSON.
curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1038/nature09572'
N-Triples is a line-based linked data format ideal for batch operations.
curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1038/nature09572'
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curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1038/nature09572'
RDF/XML is a standard XML format for linked data.
curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1038/nature09572'
This table displays all metadata directly associated to this object as RDF triples.
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