gp38 expression of cultured synovial fibroblasts.

<p>SF from RA, OA and normal synovial tissues, and normal skin dermal fibroblasts (DF) were cultured on glass coverslips and immunolabeled (red) for gp38 expression. TNF-α treated DF cultures are also shown (DAPI nuclear counterstaining). Flow cytometric detection of surface gp38 by in RA SF and DF untreated (basal) or treated with TNF-α for 24h. Data are representative of 6 SF and 3 DF lines (*p = 0.03 basal vs TNF-α treated). MFI: Mean fluorescence intensity.