Figure 4.

Matriptase and HAI-1 expression in catagen- and telogen-phase hair follicles. Tissue sections of catagen- and telogen-phase human hair follicles were immunostained for total matriptase (Matriptase) or HAI-1 (HAI-1). Sections were also stained with a non-specific mouse IgG antibody as a negative control (not shown). Lower panels show the recessive regions of the hair follicle at higher magnification. The outer root sheath (ORS) and the inner root sheath (IRS) are indicated. Nuclei of cells were counterstained blue with hematoxylin. Scale bar: 100 µm.