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Tissue microarray slide showing that Fra-1 staining (intensity score of 1–3 compared to 0 as observed in 3 normal lungs) is expressed in the majority of human mesotheliomas (MM), (42/43). Images in A and B show immunostaining of Fra-1 (red) in the upper panel. Bottom panels show merged images of Fra-1, p-ERK1/2 and nuclear staining (SYTOX green).
