Monoclonal Antibodies with Selective Specificity Towards Different Glycosylation Isoforms of FGFR1
2009
Fibroblast growth factor receptor 1 (FGFR1) is a member of the FGFR family of receptor tyrosine kinases, whose function has been implicated in diverse biological processes including cell proliferation, differentiation, survival, and tumorigenesis. This diversity is possibly mediated by the existence of multiple FGFR1 isoforms, generated by alternative splicing and post-translational modifications, mainly through glycosylation. In this study we report the generation and characterization of a panel of monoclonal antibodies directed towards FGFR1. To achieve this, we used as an antigen a fragment of FGFR1, corresponding to loop II-III of the extracellular domain, which shares low homology to other members of the FGFR family and possesses numerous antigentic determinants. Two rounds of ELISA screening and Western blot analysis allowed us to isolate a panel of monoclonal antibodies, which recognize specifically recombinant FGFR1 loop II-III. The ability of generated antibodies to recognize endogenous FGFR1 was...
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