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dc.contributor.authorBriffa, Jessica F
dc.contributor.authorGrinfeld, Esther
dc.contributor.authorMcAinch, Andrew J
dc.contributor.authorPoronnik, Philip
dc.contributor.authorHryciw, Deanne H
dc.date.accessioned2017-07-17T05:02:33Z
dc.date.available2017-07-17T05:02:33Z
dc.date.issued2014
dc.identifier.issn0303-7207
dc.identifier.doi10.1016/j.mce.2013.09.001
dc.identifier.urihttp://hdl.handle.net/10072/341915
dc.description.abstractLeptin plays a pathophysiological role in the kidney, however, its acute effects on the proximal tubule cells (PTCs) are unknown. In opossum kidney (OK) cells in vitro, Western blot analysis identified that exposure to leptin increases the phosphorylation of the mitogen-activated protein kinase (MAPK) p44/42and the mammalian target of rapamycin (mTOR). Importantly leptin (0.05, 0.10, 0.25 and 0.50 μg/ml) significantly reduced the metabolic activity of PTCs, and significantly decreased protein content per cell. Investigation of the role of p44/42 and mTOR on metabolic activity and protein content per cell, demonstrated that in the presence of MAPK inhibitor U0126 and mTOR inhibitor Ku-63794, that the mTOR pathway is responsible for the reduction in PTC metabolic activity in response to leptin. However, p44/42 and mTOR play no role the reduced protein content per cell in OKs exposed to leptin. Therefore, leptin modulates metabolic activity in PTCs via an mTOR regulated pathway.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.relation.ispartofpagefrom38
dc.relation.ispartofpageto45
dc.relation.ispartofissue1
dc.relation.ispartofjournalMolecular and Cellular Endocrinology
dc.relation.ispartofvolume382
dc.subject.fieldofresearchBiological sciences
dc.subject.fieldofresearchAgricultural, veterinary and food sciences
dc.subject.fieldofresearchBiomedical and clinical sciences
dc.subject.fieldofresearchMedical physiology not elsewhere classified
dc.subject.fieldofresearchcode31
dc.subject.fieldofresearchcode30
dc.subject.fieldofresearchcode32
dc.subject.fieldofresearchcode320899
dc.titleShort term exposure to elevated levels of leptin reduces proximal tubule cell metabolic activity
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorSkelly, Deanne


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