Figure 2. Immunohistochemical studies of the TGF-β pathway in glioblastoma.
Representative stainings for TGF-β1, TGF-β2, TGF-β3, pSmad2, pSmad1/5/8, and PAI-1 (score < 50 left, score 50-150 middle, score > 150 right). Size bars correspond to 100 μm.
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