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Fig. 8. Effects of Sema4d on metanephroic development are mediated by plexin
B1. (A-D) Typical examples of anti-calbindin-stained metanephroi
derived from wild-type (wt) or plexin B1-knockout embryos
(Plxnb1-/-) cultured with either Sema4d or mock medium.
(E-H) The Sema4d-induced inhibition of ureteric branching (E,F) and
kidney size (G,H) in wild-type kidneys is lost in kidneys that lack plexin
B1.*P<0.05 when compared with mock; Student's paired
t-test.