In this thesis the function of the receptor tyrosine kinase FGFR4 in cancer cells was analyzed. Signal tranduction studies revealed an interaction of FGFR4 with the protein tyrosine phosphatase SHP-2 and the phospholipase PLC-gamma. Moreover, the ability of FGFR4 to form heterodimers with FGFR1, 2, and 3 could be demonstrated. The germline variation FGFR4 Arg388 correlates with an enhanced tumor progression. Based on cell physiological assays a strong decrease in the motility of breast cancer cells exogeneously expressing FGFR4 Gly388 was observed, whereas FGFR4 Arg388 expression slightly increased cell motility. An earlier suggested tumor suppressive function of the FGFR4 Gly388 allele could be confirmed by the results obtained here.
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In this thesis the function of the receptor tyrosine kinase FGFR4 in cancer cells was analyzed. Signal tranduction studies revealed an interaction of FGFR4 with the protein tyrosine phosphatase SHP-2 and the phospholipase PLC-gamma. Moreover, the ability of FGFR4 to form heterodimers with FGFR1, 2, and 3 could be demonstrated. The germline variation FGFR4 Arg388 correlates with an enhanced tumor progression. Based on cell physiological assays a strong decrease in the motility of breast cancer ce...
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