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. 2020 May 20;12(5):1294. doi: 10.3390/cancers12051294

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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IL-13Rα2 expressing tumor cells in different clinical stages. (A) H&E staining of PDAC samples with stage I-IV tumors (B) IHC (immunohisto-chemistry) of IL-13Rα2 expression in PDAC with different stages and normal pancreas. (C) The extent of IHC staining in PDAC was evaluated at four levels between 0 and 3+ according to the intensity of immunostaining. (D) Percent positive fields expressing IL-13Rα2 were counted in samples with different grades. Normal pancreas showed negative staining for IL-13R2e expression. The samples were viewed at 200× magnification. * p = 0.0001.