Figure 5From: Phosphorylation of Ser78 of Hsp27 correlated with HER-2/neu status and lymph node positivity in breast cancerRepresentative immunohistochemical staining of pSer78 on breast tumor tissue microarray (TMA). TMA sections were deparaffinized in xylene and rehydrated in graded alcohols and processed as described previously [6]. After antigen retrieval and removal of endogenous peroxidases, the sections were incubated for 1 hour with anti-pSer78 antibody and the hybridized complex stained with labeled dextran polymer conjugated with peroxidase and DAB+-substrate chromagen solution, counterstained with Mayer's hematoxylin and mounted for scoring. The extent of staining was scored as negative, weak, moderate and strong, based on the stain intensity. (A-C): Hematoxylin-Eosin (H&E) staining of tumor sample; (D) Negative staining; (E): Moderate staining; (F): Strong staining. Original magnification × 400.Back to article page