Figure 7.

Satellite cell-derived myoblasts express mRNAs for multiple guidance receptors. (A): Reverse transcriptase polymerase chain reaction for gene products associated with migration guidance receptors; multiple classes of guidance receptor are represented. Intron-spanning primer sequences can be found in Supporting Table 1. (B): Immunohistochemistry for Robo1, a transmembrane guidance molecule receptor (Abcam); expression is exclusive to the satellite cells and appears localized to the satellite cell membrane contacting the myofiber surface. Scale bar = 100 μm. Abbreviation: HGF, hepatocyte growth factor.