IHC, co-immunoprecipitation and Western blotting were carried out, as described [12 (link)–15 (link), 17 (link)]. Antibody against WWOX/WOX1 was used for co-immunoprecipitation [12 (link)–15 (link), 17 (link), 22 (link)]. For IHC, skin tissue sections from patient were immersed in blocking solution (2% BSA) for 1 hr, followed by adding an aliquot of antibody against WWOX/WOX1 or TRAF2 for 2 hr incubation at room temperature. Following washing with PBS for 3 times, the tissue sections were incubated with aliquots of horseradish peroxidase (HRP)-conjugated secondary antibodies, and the resulting color was then developed using an immunohistochemical staining kit (Dako). In controls, no primary antibodies were used. The images were analyzed by an NIH Image J program.
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