How FGFR3 is Internalized in Cells
Author Information
Author(s): Haugsten Ellen Margrethe, Zakrzewska Malgorzata, Brech Andreas, Pust Sascha, Olsnes Sjur, Sandvig Kirsten, Wesche Jørgen
Primary Institution: Centre for Cancer Biomedicine, Faculty Division Norwegian Radium Hospital, University of Oslo, Oslo, Norway
Hypothesis
FGFR3 is internalized through both clathrin-dependent and clathrin-independent mechanisms.
Conclusion
FGFR3 is internalized at a slower rate than FGFR1, indicating it uses different endocytic mechanisms.
Supporting Evidence
- FGFR3 internalization was only partly inhibited by clathrin depletion.
- Endocytosis of FGFR1 was severely reduced when cells were depleted of clathrin.
- The study demonstrated that FGFR3 is internalized via both clathrin-dependent and clathrin-independent mechanisms.
Takeaway
This study shows that FGFR3, a type of receptor, can enter cells in different ways compared to another receptor, FGFR1, which is faster and relies more on a specific process.
Methodology
The study involved comparing the internalization of FGFR3 and FGFR1 in U2OS cells using various experimental techniques including siRNA knockdown and confocal microscopy.
Limitations
The study primarily focuses on U2OS cells, which may not fully represent other cell types.
Digital Object Identifier (DOI)
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