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Figure 7


Fig. 7. In vivo wild-type dermal papilla expresses the DS marker SMA when switched from anagen to catagen. (A) SMA expression in lysates of dissected whisker follicles in anagen A and catagen C. (B) Immunostaining of cryostat sections of wild-type back skin. SMA expression in the DS of hair follicles in anagen (P12) and in the DS and DP in catagen (P15). (C) Co-expression of SMA and AP in DP cells of wild-type back skin during catagen (P15). Left image shows AP staining alone for comparison. SMA, alpha smooth muscle cells actin; DS, dermal sheath; AP, alkaline phosphatase; DP, dermal papilla; TS, trailer sheath.





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