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PMID |
Sentence |
1 |
15153564
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Atrogin-1/MAFbx expression increased when the authors suppressed PI3K activity in muscle cells.
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2 |
15153564
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The forkhead transcriptional factor, a downstream substrate of PI3K, stimulated atrogin-1/MAFbx promoter transcriptional activity markedly.
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3 |
17053067
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Furthermore, in transgenic mice overexpressing PGC-1alpha, denervation and fasting caused a much smaller decrease in muscle fiber diameter and a smaller induction of atrogin-1 and MuRF-1 than in control mice.
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4 |
17053067
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Transfection of PGC-1alpha into adult fibers reduced the capacity of FoxO3 to cause fiber atrophy and to bind to and transcribe from the atrogin-1 promoter.
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5 |
17623817
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This antiproteolytic response involved higher PIP(3) and p-Akt levels and a decrease in caspase-3-mediated actin cleavage and activation of the ubiquitin-proteasome system as signified by reduced induction of atrogin-1/MAFbx or MurF1 (muscle-specific RING finger protein 1).
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6 |
19533653
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Therefore, the aim of this study was to determine whether there was an increase in catabolic signaling targets, such as atrogin-1, muscle ring finger-1 (MuRF1), forkhead transcription factor (FoXO), and myostatin, and decreases in anabolic signaling targets, such as insulin-like growth factor (IGF), v-akt murine thymoma viral oncogene (Akt), glycogen synthase kinase-beta (GSK-3beta), mammalian target of rapamycin (mTOR), eukaryotic initiation factor 4E binding protein 1 (4E-BP1), and p70(s6kinase) in chronic complete SCI patients.
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7 |
20966391
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Moreover, inhibition of Akt signaling attenuated the phosphorylation of forkhead box O transcription factor (FOXO)-3a and enhanced atrogin-1 expression, which in turn suppressed BK-?(1) protein levels in human CASMCs. downregulation of vascular BK-?(1) expression in diabetes and in high-glucose culture conditions was associated with FOXO-3a/FBXO-dependent increase in BK-?(1) degradation.
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8 |
21239445
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Furthermore, the phosphorylation of FoxO1 by IGF-I decreased concomitantly with the restoration of the expression of its target genes, Atrogin-1 and muscle RING finger 1, which are related to muscle atrophy.
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9 |
21747283
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Ang II infusion induces skeletal muscle atrophy in rodents and mechanisms include increased expression of the E3 ligases atrogin-1/MuRF-1, an elevated rate of ubiquitin-proteasome mediated proteolysis and increased reactive oxygen species (ROS) levels, closely mimicking conditions of human cachexia.
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10 |
20371624
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The PI3K/Akt pathway inhibits the FOXO-mediated transcription of the muscle-specific E3 ligase atrogin-1/MAFbx (AT-1), whereas the MEK/ERK pathway increases Sp1 activity and ubiquitin (UbC) expression.
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11 |
20522589
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The protein catabolic mechanism depended on berberine-stimulated expression of the E3 ubiquitin ligase, atrogin-1.
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