Studying Src Activation at Lipid Rafts Using FRET Imaging
Author Information
Author(s): Lu Shaoying, Ouyang Mingxing, Seong Jihye, Zhang Jin, Chien Shu, Wang Yingxiao
Primary Institution: University of Illinois at Urbana-Champaign
Hypothesis
How does EGF activate Src spatially and temporally at lipid rafts to impact cellular functions?
Conclusion
The study reveals that EGF induces high Src activity at lipid rafts, which is localized and stationary near the cell periphery.
Supporting Evidence
- The Src biosensor in the cytoplasm moves 4-8 times faster than those anchored on lipid rafts.
- High Src activity was observed at lipid rafts after EGF stimulation.
- The developed method allows for accurate modeling of biosensor diffusion.
Takeaway
Scientists used special sensors to see how a protein called Src works in cells. They found that when a growth signal is sent, Src gets very active in certain areas of the cell and stays there.
Methodology
The study used fluorescence resonance energy transfer (FRET) imaging combined with finite element analysis to assess the mobility of Src biosensors in live cells.
Limitations
The model may not accurately describe the mobility of cytosolic Src biosensors due to their presence in different cellular compartments.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website