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Fig. 5. (A) Antisense oligonucleotides to Fgfr1 decrease branching
morphogenesis of E12 SMGs; a representative photograph of each group is shown.
(B) At least 6 glands at each timepoint were photographed and the number of
terminal buds was counted. An unpaired t-test was used to compare
branching. There was a significant decrease in the number of buds in the
antisense-treated glands (**P<0.003). (C) Antisense
oligonucleotide uptake into the mesenchyme (M) and the epithelial bud (E) was
detected at 44 hours in a 7 µm optical section taken by confocal
microscopy. (D) Antisense oligonucleotides to Fgfr1 decrease
Fgfr1c expression by
75% and Fgfr11b expression
by
25%. The expression of Fgfr11b and Fgfr1c were
normalized to expression levels of Gapd.