PMC4750019_01
(a) H&E, x 400, (b) positive staining for AE1/AE3, x 400, (c) positive staining for SMA, x 400, (d) Tumor cells staining negative for the INI1 compared to stromal cells staining positive, x 400.
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The majority of tumor cells showed the absence of staining for integrase interactor 1 (INI1) (Fig. 1a-d).