Fig. 4From: There is a world beyond αvβ3-integrin: Multimeric ligands for imaging of the integrin subtypes αvβ6, αvβ8, αvβ3, and α5β1 by positron emission tomographyβ8-integrin immunohistochemistry of pancreatic ductal adenocarcinoma (PDAC, A) and head-and-neck squamous cell carcinoma (HNSCC, B). Bars indicate 50 µm. Note that the β8-subunit dimerizes only with the ubiquitous αv (see Fig. 1), which is why β8-IHC is indicative for actual αvβ8 expressionBack to article page