Jw. Vanneck et al., EXPRESSION OF BASIC FIBROBLAST GROWTH-FACTOR AND FIBROBLAST GROWTH-FACTOR RECEPTOR GENES IN CULTURED RAT AORTIC SMOOTH-MUSCLE CELLS, Biochimica et biophysica acta, N. Gene structure and expression, 1261(2), 1995, pp. 210-214
Basic fibroblast growth factor (bFGF) exerts a differential effect on
DNA synthesis, bFGF mRNA synthesis, and expression of FGF-receptor gen
es by cultured smooth muscle cells from aortae of newborn and adult ra
ts (used as a model in atherosclerosis research). Cells from adult ani
mals, are more sensitive to bFGF, and bFGF triggers its own mRNA synth
esis. Moreover, the level of the transcript of the FGFR-1 gene (coding
for the most abundant FGF-receptor in smooth muscle cells) is higher
in smooth muscle cells from adult rats. In contrast, the FGFR-3 gene o
nly is expressed in smooth muscle cells from newborn rats. Crosslinkin
g of [I-125]bFGF to its receptor showed 130 kDa and 160 kDa complexes
both in newborn and adult smooth muscle cells.