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. 2003 Dec;163(6):2459–2476. doi: 10.1016/s0002-9440(10)63601-2

Table 3.

Relative Immunostaining Intensity of TGF-β Receptors in Wounded and Non-Wounded Fetal Skin

After injury 12 hours 24 hours 36 hours 48 hours 72 hours
TGF-β RI W C W C W C W C W C
E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19
Epidermis
    Migrating epi. ++ ++ N/A N/A +++ +++ N/A N/A + ++ N/A N/A + + N/A N/A N/A N/A N/A N/A
    Outer layer ++ ++ + + +++ ++ ++ ++ + ++ + + + + + + + + + +
    Basal layer ++ ++ + + +++ ++ ++ +++ + ++ + + + + ++ ++ + ++ + ++
Dermis
    ECM +
    Fibroblasts + + + ++ + ++ + ++ + ++ + + +
Inflammatory cells* + + ++ ++ + + + ++ + + + + + + + + +
Hair follicles N/A N/A N/A N/A + + N/A N/A + N/A N/A + N/A + +
After injury 12 hours 24 hours 36 hours 48 hours 72 hours
TGF-β RII W C W C W C W C W C
E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19
Epidermis
    Migrating epi. + + N/A N/A + ++ N/A N/A + ++ N/A N/A + + N/A N/A N/A N/A N/A N/A
    Outer layer + + + + + ++ + + + ++ + + + + + + + + + +
    Basal layer + + + + + ++ + + + ++ + + + + + + + + +
Dermis
    ECM
    Fibroblasts + + + + + + + + +
    Inflammatory cells* + + + + + + + + ++ ++ + + + + + + + +
Hair follicles N/A N/A + N/A N/A + N/A N/A + N/A N/A + + N/A +
After injury 12 hours 24 hours 36 hours 48 hours 72 hours
TGF-β RIII W C W C W C W C W C
E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19 E16 E19
Epidermis
    Migrating epi. + ++ N/A N/A + + N/A N/A ++ ++ N/A N/A + + N/A N/A N/A N/A N/A N/A
    Outer layer + ++ + + + + + + ++ ++ ++ + + + + + + +
    Basal layer + ++ + + + + + + ++ ++ ++ + + + + +
Dermis
    ECM + + + + ++ + + + ++ + ++ + + + ++ + + + +
    Fibroblasts + + + + ++ ++ + ++ + + +
Inflammatory cells* + + + + + + + + ++ + + + + + + + + + + +
Hair follicles N/A N/A N/A N/A N/A N/A N/A N/A N/A

W, Wound; C, Control; N/A, not applicable; −, no staining (<5%); +, minimal staining (<25%); ++, moderate staining (25% to 50%); +++, strong staining (>50%). Peak expression time points for a given tissue component are highlighted for wounded E16 (bold) and E19 (underlined) animals.

*In general, non-wounded control skin and E16-wounded fetuses contained very few inflammatory cells. The chart reflects the intensity of intracellular TGF-β staining and not the actual number of inflammatory cells present.