» Articles » PMID: 31506500

Membrane Capacitance Recordings Resolve Dynamics and Complexity of Receptor-mediated Endocytosis in Wnt Signalling

Overview
Journal Sci Rep
Specialty Science
Date 2019 Sep 12
PMID 31506500
Citations 9
Authors
Affiliations
Soon will be listed here.
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.

Citing Articles

Improved Sensitivity in a Modified Berkeley Red Sensor of Transmembrane Potential.

Navarro M, Gerstner N, Lipman S, Dolgonos G, Miller E ACS Chem Biol. 2024; 19(10):2214-2219.

PMID: 39358835 PMC: 11648967. DOI: 10.1021/acschembio.4c00442.


Optical constraints on two-photon voltage imaging.

Phil Brooks 3rd F, Davis H, Wong-Campos J, Cohen A Neurophotonics. 2024; 11(3):035007.

PMID: 39139631 PMC: 11321468. DOI: 10.1117/1.NPh.11.3.035007.


Transient suppression of Wnt signaling in poor-quality buffalo oocytes improves their developmental competence.

Ahuja K, Batra V, Kumar R, Datta T Front Vet Sci. 2024; 10:1324647.

PMID: 38274663 PMC: 10808588. DOI: 10.3389/fvets.2023.1324647.


Mechanisms of aquaporin-4 vesicular trafficking in mammalian cells.

Markou A, Kitchen P, Aldabbagh A, Repici M, Salman M, Bill R J Neurochem. 2023; 168(2):100-114.

PMID: 38102893 PMC: 10953025. DOI: 10.1111/jnc.16029.


Optical constraints on two-photon voltage imaging.

Phil Brooks 3rd F, Davis H, Wong-Campos J, Cohen A bioRxiv. 2023; .

PMID: 38014011 PMC: 10680948. DOI: 10.1101/2023.11.18.567441.


References
1.
Koo B, Spit M, Jordens I, Low T, Stange D, van de Wetering M . Tumour suppressor RNF43 is a stem-cell E3 ligase that induces endocytosis of Wnt receptors. Nature. 2012; 488(7413):665-9. DOI: 10.1038/nature11308. View

2.
Bandmann V, Homann U . Clathrin-independent endocytosis contributes to uptake of glucose into BY-2 protoplasts. Plant J. 2012; 70(4):578-84. DOI: 10.1111/j.1365-313X.2011.04892.x. View

3.
Kikuchi A, Yamamoto H, Sato A . Selective activation mechanisms of Wnt signaling pathways. Trends Cell Biol. 2009; 19(3):119-29. DOI: 10.1016/j.tcb.2009.01.003. View

4.
Hagemann A, Kurz J, Kauffeld S, Chen Q, Reeves P, Weber S . In vivo analysis of formation and endocytosis of the Wnt/β-catenin signaling complex in zebrafish embryos. J Cell Sci. 2014; 127(Pt 18):3970-82. PMC: 4163645. DOI: 10.1242/jcs.148767. View

5.
Mahapatra S, Fan F, Lou X . Tissue-specific dynamin-1 deletion at the calyx of Held decreases short-term depression through a mechanism distinct from vesicle resupply. Proc Natl Acad Sci U S A. 2016; 113(22):E3150-8. PMC: 4896691. DOI: 10.1073/pnas.1520937113. View