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IHC staining of FFPE esophageal tissues in tissue microarrays (×20).

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Presentation on theme: "IHC staining of FFPE esophageal tissues in tissue microarrays (×20)."— Presentation transcript:

1 IHC staining of FFPE esophageal tissues in tissue microarrays (×20).
IHC staining of FFPE esophageal tissues in tissue microarrays (×20). Staining with anti–PD-1 antibody showing PD-1+ TILs (A), anti–PD-L1 antibody showing PD-L1+ immune cells (B), negative PD-L2 staining (C), weak PD-L2 staining in tumor epithelium scored as 1+ (D), moderate PD-L2 staining scored as 2+ (E), and strong PD-L2 staining scored as 3+ (F). High magnification images to show cytologic details for PD-1 and PD-L1. Sarah Derks et al. Cancer Immunol Res 2015;3: ©2015 by American Association for Cancer Research

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