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dc.contributor.authorChanon, Stéphanie
dc.contributor.authorChazarin, Blandine
dc.contributor.authorToubhans, Benoit
dc.contributor.authorDurand, Christine
dc.contributor.authorChery, Isabelle
dc.contributor.authorRobert, Maud
dc.contributor.authorVieille-Marchiset, Aurélie
dc.contributor.authorSwenson, Jon
dc.contributor.authorZedrosser, Andreas
dc.contributor.authorEvans, Alina
dc.contributor.authorBrunberg, Sven
dc.contributor.authorArnemo, Jon Martin
dc.contributor.authorGauquelin-Koch, Guillemette
dc.contributor.authorStorey, Kenneth B.
dc.contributor.authorSimon, Chantal
dc.contributor.authorBlanc, Stéphane
dc.contributor.authorBertile, Fabrice
dc.contributor.authorLefai, Etienne
dc.date.accessioned2019-01-21T12:33:01Z
dc.date.available2019-01-21T12:33:01Z
dc.date.created2018-07-10T09:52:08Z
dc.date.issued2018
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/11250/2581533
dc.description.abstractMuscle atrophy is one of the main characteristics of human ageing and physical inactivity, with resulting adverse health outcomes. To date, there are still no efficient therapeutic strategies for its prevention and/or treatment. However, during hibernation, bears exhibit a unique ability for preserving muscle in conditions where muscle atrophy would be expected in humans. Therefore, our objective was to determine whether there are components of bear serum which can control protein balance in human muscles. In this study, we exposed cultured human differentiated muscle cells to bear serum collected during winter and summer periods, and measured the impact on cell protein content and turnover. In addition, we explored the signalling pathways that control rates of protein synthesis and degradation. We show that the protein turnover of human myotubes is reduced when incubated with winter bear serum, with a dramatic inhibition of proteolysis involving both proteasomal and lysosomal systems, and resulting in an increase in muscle cell protein content. By modulating intracellular signalling pathways and inducing a protein sparing phenotype in human muscle cells, winter bear serum therefore holds potential for developing new tools to fight human muscle atrophy and related metabolic disordersnb_NO
dc.language.isoengnb_NO
dc.relation.urihttps://www.nature.com/articles/s41598-018-23891-5
dc.titleProteolysis inhibition by hibernating bear serum leads to increased protein content in human muscle cellsnb_NO
dc.title.alternativeProteolysis inhibition by hibernating bear serum leads to increased protein content in human muscle cellsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.volume8nb_NO
dc.source.journalScientific Reportsnb_NO
dc.identifier.doi10.1038/s41598-018-23891-5
dc.identifier.cristin1596488
cristin.unitcode209,98,55,2
cristin.unitnameInstitutt for skog- og utmarksfag
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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