title: Construction of recombinant FGFR1 containing full-length gene and its potential application.
abstract: FGFR1, one of the four fibroblast growth factor receptors, has been found to be over-expressed in many cancers. In this study, a full-length expression plasmid for FGFR1 was obtained by fragment amplification. The amplified PCR product was then digested and inserted into the pcDNA3.1(+) vector. A recombinant eukaryotic expression vector containing the complete CDS region of FGFR1 was successfully constructed. After it was transfected to Hek293 cell, the expression of the FGFR1 receptor in recombinant Hek293/FGFR1 was 18 times higher than that of Hek293 cell. The biological activities of high expression FGFR1 cell (Hek293/FGFR1) were verified by FCM, immunofluorescent, RT-PCR, western blot and cell cycle analysis. Then, Hek293/FGFR1 was used to screen taspine with cell membrane chromatography (CMC). Finally, we analyzed the effects of taspine on Hek293/FGFR1 cell and MCF-7 cell. In conclusion, Hek293/FGFR1 was successfully constructed. The results demonstrate that taspine can down-regulate phosphorylation of FGFR1 and ERK, and inhibit Hek293/FGFR1 and MCF-7 cell proliferation.
authors.affiliation: School of Medicine, Xi'an Jiaotong University, No. 76, Yanta Weststreet, #54, Xi'an, Shaanxi Province 71006, PR China.
authors.forename: Yali
authors.initials: Y
authors.lastname: Zhou
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Luo
authors.forename: Lei
authors.initials: L
authors.lastname: Zheng
authors.forename: Miao
authors.initials: M
authors.lastname: Li
authors.forename: Yanmin
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D000470:Alkaloids / Q000494:pharmacology; D002453:Cell Cycle / Q000187:drug effects; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D003001:Cloning, Molecular / Q000379:methods*; D006801:Humans; D020935:MAP Kinase Signaling System / Q000187:drug effects; D010766:Phosphorylation / Q000187:drug effects; D016133:Polymerase Chain Reaction; D051496:Receptor, Fibroblast Growth Factor, Type 1 / Q000235:genetics*; D011994:Recombinant Proteins / Q000235:genetics*
chemical_list: D000470:Alkaloids; D011994:Recombinant Proteins; D051496:Receptor, Fibroblast Growth Factor, Type 1; C018394:taspine