A Clathrin light chain A reporter mouse for in vivo imaging of endocytosis

2022 | journal article. A publication with affiliation to the University of Göttingen.

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​A Clathrin light chain A reporter mouse for in vivo imaging of endocytosis​
Grimm, E.; van der Hoeven, F.; Sardella, D.; Willig, K. I. ; Engel, U.; Veits, N. & Engel, R. et al.​ (2022) 
PLoS One17(9) art. e0273660​.​ DOI: https://doi.org/10.1371/journal.pone.0273660 

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Authors
Grimm, Elisabeth; van der Hoeven, Franciscus; Sardella, Donato; Willig, Katrin I. ; Engel, Ulrike; Veits, Nisha; Engel, Robert; Cavalcanti-Adam, Elisabetta Ada; Bestvater, Felix; Bordoni, Luca
Abstract
Clathrin-mediated endocytosis (CME) is one of the best studied cellular uptake pathways and its contributions to nutrient uptake, receptor signaling, and maintenance of the lipid membrane homeostasis have been already elucidated. Today, we still have a lack of understanding how the different components of this pathway cooperate dynamically in vivo . Therefore, we generated a reporter mouse model for CME by fusing eGFP endogenously in frame to clathrin light chain a (Clta) to track endocytosis in living mice. The fusion protein is expressed in all tissues, but in a cell specific manner, and can be visualized using fluorescence microscopy. Recruitment to nanobeads recorded by TIRF microscopy validated the functionality of the Clta-eGFP reporter. With this reporter model we were able to track the dynamics of Alexa594-BSA uptake in kidneys of anesthetized mice using intravital 2-photon microscopy. This reporter mouse model is not only a suitable and powerful tool to track CME in vivo in genetic or disease mouse models it can also help to shed light into the differential roles of the two clathrin light chain isoforms in health and disease.
Issue Date
2022
Journal
PLoS One 
Organization
Universitätsmedizin Göttingen ; Max-Planck-Institut für Experimentelle Medizin 
eISSN
1932-6203
Language
English
Sponsor
Novo Nordisk Fonden http://dx.doi.org/10.13039/501100009708
Aarhus Universitets Forskningsfond http://dx.doi.org/10.13039/501100002739
German Science Foundation

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