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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Molecular mechanisms of activation and modulation of TRPV3 receptor
 Chvojka, Štěpán ; Vlachová, Viktorie (advisor) ; Novotný, Jiří (referee)
Transient receptor potential vanilloid 3 receptor channel (TRPV3) is a thermosensitive ion channel expressed in skin keratinocytes. There, in a molecular complex with the epidermal growth factor receptor (EGFR) contributes to proliferation and terminal differentiation of keratinocytes, temperature detection, pain and pruritus. TRPV3 is activated by a number of exogenous compounds, such as carvacrol from oregano, thymol from thyme and eugenol from clove. Its unique feature is sensitization, TRPV3 channel activity successively increases upon repeated stimulation. The molecular basis of this process is not yet understood. One of the considered possibility is a direct phosphorylation of TRPV3 protein through signaling pathways involving EGFR and mitogen-activated protein kinase MAPK1 / MAPK3 (also called ERK2 / ERK1). In this thesis we investigated whether sensitization of TRPV3 which is expressed in a human cell line immortalized keratinocytes could be influenced by mutations on the predicted consensual phosphorylation sites for MAPK1 / MAPK3. We used electrophysiological patch-clamp technique and tested eight mutants, in which was threonine or serine replaced with aspartic acid mimicking phosphorylation. We identified six residues where the mutations influenced at least one of the functional...
Detailed record
Molecular mechanisms of activation and modulation of TRPV3 receptor
 Chvojka, Štěpán ; Vlachová, Viktorie (advisor) ; Novotný, Jiří (referee)
Transient receptor potential vanilloid 3 receptor channel (TRPV3) is a thermosensitive ion channel expressed in skin keratinocytes. There, in a molecular complex with the epidermal growth factor receptor (EGFR) contributes to proliferation and terminal differentiation of keratinocytes, temperature detection, pain and pruritus. TRPV3 is activated by a number of exogenous compounds, such as carvacrol from oregano, thymol from thyme and eugenol from clove. Its unique feature is sensitization, TRPV3 channel activity successively increases upon repeated stimulation. The molecular basis of this process is not yet understood. One of the considered possibility is a direct phosphorylation of TRPV3 protein through signaling pathways involving EGFR and mitogen-activated protein kinase MAPK1 / MAPK3 (also called ERK2 / ERK1). In this thesis we investigated whether sensitization of TRPV3 which is expressed in a human cell line immortalized keratinocytes could be influenced by mutations on the predicted consensual phosphorylation sites for MAPK1 / MAPK3. We used electrophysiological patch-clamp technique and tested eight mutants, in which was threonine or serine replaced with aspartic acid mimicking phosphorylation. We identified six residues where the mutations influenced at least one of the functional...
Detailed record

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