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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Mol+Cell+Cardiol
2016 ; 94
(ä): 72-81
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A computational model of cardiac fibroblast signaling predicts context-dependent
drivers of myofibroblast differentiation
#MMPMID27017945
J Mol Cell Cardiol
2016[May]; 94
(ä): 72-81
PMID27017945
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Cardiac fibroblasts support heart function, and aberrant fibroblast signaling can
lead to fibrosis and cardiac dysfunction. Yet how signaling molecules drive
myofibroblast differentiation and fibrosis in the complex signaling environment
of cardiac injury remains unclear. We developed a large-scale computational model
of cardiac fibroblast signaling in order to identify regulators of fibrosis under
diverse signaling contexts. The model network integrates 10 signaling pathways,
including 91 nodes and 134 reactions, and it correctly predicted 80% of
independent previous experiments. The model predicted key fibrotic signaling
regulators (e.g. reactive oxygen species, tissue growth factor ? (TGF?)
receptor), whose function varied depending on the extracellular environment. We
characterized how network structure relates to function, identified functional
modules, and predicted cross-talk between TGF? and mechanical signaling, which
was validated experimentally in adult cardiac fibroblasts. This study provides a
systems framework for predicting key regulators of fibroblast signaling across
diverse signaling contexts.