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. 2021 Aug 12;8:687444. doi: 10.3389/fmolb.2021.687444

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Copyright © 2021 Zheng, E, Cui, Zhao and Zhang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Morphological examination of JCV T antigen in breast cancers. According to immunohistochemistry (IHC), T antigen was strongly expressed in ductal and lobular epithelial cells (brown) but positively or weakly expressed in breast ductal and lobular cancer cells. NBT/BCIP coloring is displayed as black to show positive signals in breast ductal and lobular epithelial cells by in situ PCR, while methyl green is denoted as a green color for counterstaining.