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- W2060097114 abstract "Basic fibroblast growth factor (bFGF) and other members of the FGF family share several biological properties that have the potential to mediate neoplastic cell growth. To test the hypothesis that bFGF may play a role in human ovarian cancer cell growth, three ovarian cancer cell lines, A90, A121(P), and A121(A), were investigated for their ability to respond to bFGF as a mitogen, to express endogenous bFGF protein or message for FGF proteins, and to exhibit FGF receptor or its message. Addition of bFGF to cultures of all three cell lines maintained in chemically defined media resulted in a statistically significant increase in cell number. Cell extracts from A90, A121(P), and A121(A) contained an immunoreactive protein that comigrated with hr-bFGF by Western blot analysis. Several bands of higher molecular weight were also noted. Immunohistochemical staining for bFGF demonstrated a cytoplasmic distribution of bFGF in the three cell lines. Both high- and low-affinity binding sites for human recombinant bFGF (hr-bFGF) were expressed by all three lines. High-affinity sites varied from 2700 sites per cell (Kd = 29 pM) to 13,500 sites per cell (Kd = 71 pM). All three cell lines were screened for mRNA expression for seven FGF proteins and four FGF receptors. In all three lines, mRNA for FGF2 (bFGF) was detected by PCR analysis, and in two lines, mRNA for FGF1 (aFGF) and FGF5 were also found. The FGFR1 receptor subtype (flg) was common to all of the cell lines. Finally, suramin inhibited proliferation of A90 and A121 (P and A) with IC50's of 60 and 210 micrograms/ml, respectively. This is consistent with the A90 cell line having higher levels of endogenous bFGF and flg and therefore being more responsive to suramin inhibition than the A121 cell line. The results indicate that these ovarian cancer cell lines can produce bFGF as well as other members of the FGF family of genes and have the ability to respond to bFGF." @default.
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- W2060097114 date "1994-11-01" @default.
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- W2060097114 title "Basic Fibroblast Growth Factor and Receptor Expression in Human Ovarian Cancer" @default.
- W2060097114 doi "https://doi.org/10.1006/gyno.1994.1290" @default.
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