Bandmann, Vera ; Mirsanaye, Ann Schirin ; Schäfer, Johanna ; Thiel, Gerhard ; Holstein, Thomas ; Mikosch-Wersching, Melanie (2019)
Membrane capacitance recordings resolve dynamics and complexity of receptor-mediated endocytosis in Wnt signalling.
In: Scientific reports, 9 (1)
doi: 10.1038/s41598-019-49082-4
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Receptor-mediated endocytosis is an essential process in signalling pathways for activation of intracellular signalling cascades. One example is the Wnt signalling pathway that seems to depend on endocytosis of the ligand-receptor complex for initiation of Wnt signal transduction. To date, the roles of different endocytic pathways in Wnt signalling, molecular players and the kinetics of the process remain unclear. Here, we monitored endocytosis in Wnt3a and Wnt5a-mediated signalling with membrane capacitance recordings of HEK293 cells. Our measurements revealed a swift and substantial increase in the number of endocytic vesicles. Extracellular Wnt ligands specifically triggered endocytotic activity, which started immediately upon ligand binding and ceased within a period of ten minutes. By using specific inhibitors, we were able to separate Wnt-induced endocytosis into two independent pathways. We demonstrate that canonical Wnt3a is taken up mainly by clathrin-independent endocytosis whereas noncanonical Wnt5a is exclusively regulated via clathrin-mediated endocytosis. Our findings show that membrane capacitance recordings allow the resolution of complex cellular processes in plasma membrane signalling pathways in great detail.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2019 |
| Autor(en): | Bandmann, Vera ; Mirsanaye, Ann Schirin ; Schäfer, Johanna ; Thiel, Gerhard ; Holstein, Thomas ; Mikosch-Wersching, Melanie |
| Art des Eintrags: | Bibliographie |
| Titel: | Membrane capacitance recordings resolve dynamics and complexity of receptor-mediated endocytosis in Wnt signalling. |
| Sprache: | Englisch |
| Publikationsjahr: | 10 September 2019 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Scientific reports |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1038/s41598-019-49082-4 |
| Kurzbeschreibung (Abstract): | Receptor-mediated endocytosis is an essential process in signalling pathways for activation of intracellular signalling cascades. One example is the Wnt signalling pathway that seems to depend on endocytosis of the ligand-receptor complex for initiation of Wnt signal transduction. To date, the roles of different endocytic pathways in Wnt signalling, molecular players and the kinetics of the process remain unclear. Here, we monitored endocytosis in Wnt3a and Wnt5a-mediated signalling with membrane capacitance recordings of HEK293 cells. Our measurements revealed a swift and substantial increase in the number of endocytic vesicles. Extracellular Wnt ligands specifically triggered endocytotic activity, which started immediately upon ligand binding and ceased within a period of ten minutes. By using specific inhibitors, we were able to separate Wnt-induced endocytosis into two independent pathways. We demonstrate that canonical Wnt3a is taken up mainly by clathrin-independent endocytosis whereas noncanonical Wnt5a is exclusively regulated via clathrin-mediated endocytosis. Our findings show that membrane capacitance recordings allow the resolution of complex cellular processes in plasma membrane signalling pathways in great detail. |
| ID-Nummer: | pmid:31506500 |
| Fachbereich(e)/-gebiet(e): | 10 Fachbereich Biologie 10 Fachbereich Biologie > Plant Membrane Biophyscis (am 20.12.23 umbenannt in Biologie der Algen und Protozoen) |
| Hinterlegungsdatum: | 17 Sep 2019 05:50 |
| Letzte Änderung: | 17 Sep 2019 05:50 |
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