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Fig. 10. Working model of how FGF7 and FGF10 signaling through FGFR2b regulates
morphogenesis. The model summarizes our findings, and the dotted lines show
other potential mechanisms: MMP2 may regulate FGFR1 cleavage; FGF1 expression
may stimulate both FGFR1 and FGFR2; cofactors or co-receptors may specify the
localization of FGF binding and, therefore, where proliferation occurs.