PF-4708671 activates AMPK independently of p70S6K1 inhibition.

The P70 ribosomal protein S6 kinase 1 (P70S6K1) is activated by the mammalian target of rapamycin (mTORC1) and regulates proliferation, growth, and metabolism. PF-4708671 is a novel, cell-permeable, has been proposed to be a highly specific inhibitor of p70S6K1. It is used in micromolar concentratio...

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Main Authors: Gilad W Vainer, Ann Saada, Juliane Kania-Almog, Adir Amartely, Jacob Bar-Tana, Rachel Hertz
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4159345?pdf=render
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author Gilad W Vainer
Ann Saada
Juliane Kania-Almog
Adir Amartely
Jacob Bar-Tana
Rachel Hertz
author_facet Gilad W Vainer
Ann Saada
Juliane Kania-Almog
Adir Amartely
Jacob Bar-Tana
Rachel Hertz
author_sort Gilad W Vainer
collection DOAJ
description The P70 ribosomal protein S6 kinase 1 (P70S6K1) is activated by the mammalian target of rapamycin (mTORC1) and regulates proliferation, growth, and metabolism. PF-4708671 is a novel, cell-permeable, has been proposed to be a highly specific inhibitor of p70S6K1. It is used in micromolar concentration range to dissect signaling pathways downstream of mTORC1 and to study the function of p70S6K1. Here we show that PF-4708671 induces AMP-activated protein kinase (AMPK) phosphorylation and activation in immortalized mouse embryonic fibroblasts (MEF) independently of p70S6K1, due to specific inhibition of mitochondrial respiratory chain Complex I.
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spelling doaj.art-3cf93284241f408db183ad6b65467b2d2022-12-21T19:57:53ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0199e10736410.1371/journal.pone.0107364PF-4708671 activates AMPK independently of p70S6K1 inhibition.Gilad W VainerAnn SaadaJuliane Kania-AlmogAdir AmartelyJacob Bar-TanaRachel HertzThe P70 ribosomal protein S6 kinase 1 (P70S6K1) is activated by the mammalian target of rapamycin (mTORC1) and regulates proliferation, growth, and metabolism. PF-4708671 is a novel, cell-permeable, has been proposed to be a highly specific inhibitor of p70S6K1. It is used in micromolar concentration range to dissect signaling pathways downstream of mTORC1 and to study the function of p70S6K1. Here we show that PF-4708671 induces AMP-activated protein kinase (AMPK) phosphorylation and activation in immortalized mouse embryonic fibroblasts (MEF) independently of p70S6K1, due to specific inhibition of mitochondrial respiratory chain Complex I.http://europepmc.org/articles/PMC4159345?pdf=render
spellingShingle Gilad W Vainer
Ann Saada
Juliane Kania-Almog
Adir Amartely
Jacob Bar-Tana
Rachel Hertz
PF-4708671 activates AMPK independently of p70S6K1 inhibition.
PLoS ONE
title PF-4708671 activates AMPK independently of p70S6K1 inhibition.
title_full PF-4708671 activates AMPK independently of p70S6K1 inhibition.
title_fullStr PF-4708671 activates AMPK independently of p70S6K1 inhibition.
title_full_unstemmed PF-4708671 activates AMPK independently of p70S6K1 inhibition.
title_short PF-4708671 activates AMPK independently of p70S6K1 inhibition.
title_sort pf 4708671 activates ampk independently of p70s6k1 inhibition
url http://europepmc.org/articles/PMC4159345?pdf=render
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