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OPA1 mediates adrenergic control of lipolysis in human adipocytes by regulating phosphorylation of perilipin 1.
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These findings demonstrate that PKA-mediated T372 phosphorylation reduces oncogenic EZH2 activity and reveal a novel role for the evolutionarily conserved T372 motif of EZH2 in regulating EZH2 in epithelial ovarian cancer and possibly other cancers.
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Cyclic AMP production reduces DUX4 expression through a protein kinase A-dependent mode of action in facioscapulohumeral muscular dystrophy patient myotubes.
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Ezrin-anchored PKA phosphorylates serine 369 and 373 on connexin 43 to enhance gap junction assembly, communication, and cell fusion.
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CaV1.4 channels are indeed modulated by PKA phosphorylation within the inhibitor of Ca(2+)-dependent inactivation (ICDI) motif.
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In this study, the authors linked for the first time the loss of RIIbeta protein levels to the PRKACA mutation status and found the down-regulation of RIIbeta to arise post-transcriptionally.
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the presence of lipofuscin in cortisol-producing adenomas (CPAs) responsible for Cushing syndrome with and without the PRKACA (pLeu206Arg) somatic mutation, was investigated.
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Mechanistically, Sirt1 expression elevates phosphorylation of the alpha subunit of protein kinase A (PKA alpha), and this event is essential for Sirt1-induced phosphorylation of beta Catenin.
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PKA, under the conditions of experimental approach appears to function as a master upstream kinase that is sufficient to initiate the complex pattern of intracellular signaling pathway and gene expression profiles that accompany ovarian granulosa cells differentiation
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Together, the results suggest a complex antagonistic interplay between the control of ARPP-16 by MAST3 and PKA that creates a mechanism whereby cAMP mediates PP2A disinhibition.
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CTR activates AKAP2-anchored cAMP-dependent protein kinase A, which then phosphorylates tight junction proteins ZO-1 and claudin 3.
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These results indicate that Mixed fibrolamellar hepatocellular carcinoma (mFL-HCC) is similar to pure FL-HCC at the genomic level and the DNAJB1:PRKACA fusion can be used as a diagnostic tool for both pure and mFL-HCC
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PRKACA mutations are highly specific for cortisol over-secretion, while they are absent or very rare in the context of other adrenal diseases. Patients carrying these somatic mutations are affected by a more severe phenotype and are identified at a younger age.
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Somatic mutations in PRKACA, coding for the catalytic alpha subunit of protein kinase A (PKA), have been recently identified as the most frequent genetic alteration in cortisol-secreting adrenocortical adenomas, which are responsible for adrenal Cushing's syndrome.
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HIF1a transcriptional activity is stimulated by Protein kinase A-dependent phosphorylation
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cigarette smoke extracts activate the PKA, CREB, and IL-13Ralpha2 axis in lung endothelial cells.
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Data indicate a subpopulation of the CaV1.2 channel pore-forming subunit (alpha1C) within nanometer proximity of protein kinase A (PKA) at the sarcolemma of murine and human arterial myocytes.
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we propose that the PKA-Smurf1-PIPKIgamma pathway has an important role in pulmonary tumorigenesis and imposes substantial clinical impact on development of novel diagnostic markers and therapeutic targets for lung cancer treatment.
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cAMP/PKA signaling attenuated respiratory syncytial virus-induced disruption of structure and functions of the model airway epithelial barrier by mechanisms involving the stabilization of epithelial junctions and inhibition of viral biogenesis
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The mutated PRKACA proteins lost their ability to bind to PRKAR1A, and thereby lead to constitutive activation of the PKA pathway. Together with previous reports of PRKAR1A mutations in syndromic cardiac myxoma, our study demonstrates the importance of the PKA pathway in the tumourigenesis of cardiac myxoma.
