1. Tumor cell biology
Molecular mechanism of invasion and metastasis of colorectal and breast carcinomas.
Molecular interaction between fragmented hyaluronan and CD44.
Hyaluronan-induced cell motility. (activation of RhoGTPases and assembly of cytoskeletons)
Molecular mechanism of epithelial-mesenchymal transition.
2. Stem cell biology
Cell-cell and cell-matrix interaction of stem cell. (Notch signaling and function of CD44)
3. Signal transduction
Hyaluronan-induced signaling.
Notch signaling: function of mastermind. (Knockout mice)
4. Live cell imaging
5. Human pathology