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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
The role of new profibrotic molecules in the pathogenesis of systemic sclerosis.
 Šumová, Barbora ; Šenolt, Ladislav (advisor) ; Funda, David (referee) ; Soukup, Tomáš (referee)
Systemic sclerosis (SSc) is immune-mediated fibrotic disease of unknown aetiology. Among the dominant pathogenic manifestations of SSc belong vascular changes, production of autoantibodies, activation of innate and adaptive immune responses and fibrotic processes. Transforming growth factor beta (TGF-β) has been identified as a central profibrotic factor stimulating fibroblasts to produce collagen. There are, however, a number of other mediators involved in the pathogenesis of SSc. Mutual activation and amplification of these molecules and their cascades may be a central mechanism of the SSc pathogenesis. Hedgehog (Hh) canonical signalling pathway plays an important role in the development and progression of fibrotic diseases. Expression of Hh target genes can be regulated through a canonical or non-canonical signalling cascade. The non-canonical activation of GLI transcription factors by TGF-β has not yet been investigated in SSc. The substantial part of this thesis is focused on the study of the mutual interaction of TGF-β and Hh signalling pathway. In vitro analysis confirmed TGF- β/SMAD3 dependent activation of GLI2 in dermal fibroblasts. Fibroblasts specific knockout of GLI2 prevented the development of experimental fibrosis in vivo. Combined targeting of canonical and non-canonical Hh...
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