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. 2018 Oct 30;8:16006. doi: 10.1038/s41598-018-34475-8

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Effect of Dex on mouse tumor xenografts expressing low or high levels of GR. SCID mice bearing xenografts of parental H1299 cells (Panel A) or H1299GR Clone 4 cells (Panel B) were implanted with either placebo or Dex (2.5 mg) slow-release pellets at the time indicated by the arrow. The tumor growth was monitored via caliper measurements and tumor volumes were calculated using the formula noted in the Methods section. At the time of sacrifice, residual H1299GR Clone 4 tumors were harvested from the placebo (Panel C, left) and Dex (Panel C, right) treated mice and stained to ensure GR expression and to quantify p27^Kip1 by immunohistochemistry (Panel D). The scoring criteria based on staining intensity and percent positivity, as outlined in the Methods section. The parental H1299 cell tumor xenografts harvested at the end of placebo or Dex treatments in Panel A were also examined by immunohistochemistry for GR and p27^Kip1 expression (Panel E). Panel B: *P, 0.08; ^§P, 0.016; ^‡P, 0.0015.