- Deregulation of hepatic mek1/2–erk1/2 signaling module in iron overload conditions
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The liver, through the production of iron hormone hepcidin, controls body iron levels. High liver iron levels and deregulated hepcidin expression are commonly observed in many liver diseases including highly prevalent genetic iron overload disorders. In spite of a number of breakthrough investigations into the signals that control hepcidin expression, little progress has been made towards investigations into intracellular signaling in the liver under excess of iron. This study examined hepatic signaling pathways underlying acquired and genetic iron overload conditions. Our data? demonstrate that hepatic iron overload associates with a decline in the activation of mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinase (Erk) kinase (Mek1/2) pathway by selectively affecting the phosphorylation of Erk1/2. We propose that Mek1/2-Erk1/2 signaling is uncoupled from iron-Bmp-Smad-mediated hepcidin induction and that it may contribute to a number of liver pathologies in addition to toxic effects of iron. We believe that our findings will advance the understanding of cellular signaling events in the liver during iron overload of different etiologies.
- Tangudu, Naveen Kumar,Buth, Nils,Strnad, Pavel,Cirstea, Ion C,Spasi?, Maja Vuji?
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- PROCESSES FOR PREPARING ISOQUINOLINONES AND SOLID FORMS OF ISOQUINOLINONES
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Polymorphs of chemical compounds that modulate kinase activity, including PI3 kinase activity, and compounds, pharmaceutical compositions, and methods of treatment of diseases and conditions associated with kinase activity, including P13 kinase activity, are described herein. Also provided herein are processes for preparing compounds, polymorphs thereof, and pharmaceutical compositions thereof.
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- CHEMICAL COMPOUNDS, COMPOSITIONS AND METHODS FOR KINASE MODULATION
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Chemical compounds that modulate kinase activity, including PI3 kinase activity, and chemical compounds, pharmaceutical compositions, and methods of treatment of diseases and conditions associated with kinase activity, including PI3 kinase activity, are described herein.
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