Membrane trafficking group
Academic Interests
My research focuses on the interplay between membrane dynamics, signaling, and the cytoskeleton, with a special emphasis on phosphoinositide lipids and lipid-binding proteins. I am particularly interested in how these components regulate vesicle trafficking and cellular organization. My group investigates macropinocytosis and endocytic recycling, focusing on how vesicles establish and maintain their identity through phosphoinositides and Rab GTPases. Using advanced imaging techniques, we explore vesicle dynamics in processes such as nutrient scavenging in cancer cells.
Teaching
- Medical courses: Cell Biology, Biochemistry, and Genetics (MED1100).
- PhD courses: Molecular Cancer Medicine (MF9235) and Advanced Microscopy Methods (MF9120BST).
- Workshops: Teaching advanced light microscopy and image processing at the annual NorMic Workshop.
Background:
- Education:
- Diploma in Biological Sciences(Philipps-University Marburg, Germany), specializing in genetics, virology and parasitology.
- Phd:
- PhD in Biological Sciences (Philipps-University Marburg, Germany), focusing on the regulation of Rho GTPases by phosphoinositides and their function in cell division and cell polarity.
- Postdoc Experience: Research on phosphoinositides and lipid-binding proteins in the lab of Harald Stenmark (The Norwegian Radium Hospital, Oslo), focusing on vesicle trafficking and membrane remodeling.
- Project Group Leader, Department of Molecular Cell Biology, Institute for Cancer Research, Norwegian Radium Hospital.
Funding
Our research is supported by funding from the Norwegian Research Council, The Norwegian Cancer Society and Helse Sør-Øst.
Collaborations:
Key collaborations:
Coen Campsteijn (UiO, IMB)
Harald Stenmark (OUS, UiO)
National collaborations
CanCell Center of Excellence (UiO,Oslo): We are affiliated members of the CanCell CoE
International collaborations
Johannes Freitag (University of Marburg): Sorting and specialized subdomain in peroxisomes
Current Research Focus
- Macropinosome Formation: Investigating how macropinosomes form, establish their identity, and are exploited by cancer cells and pathogens.
- Key findings include a Rab and phosphoinositide switch during vesicle maturation, with implications for membrane trafficking.
- Nutrient Scavenging in Cancer: Understanding how macropinocytosis supports tumor metabolism, with a focus on KRAS-driven cancers and potential therapeutic targets.
Technological Expertise:
- Advanced microscopy (light sheet, super-resolution, live-cell imaging)
- Tracking and manipulation of phosphoinositides
- Development of optogenetic and synthetic biology tools for lipid and protein manipulation.
- Image analysis and deep learning for biological imaging.