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. 2019 Jun 6;10:2484. doi: 10.1038/s41467-019-10127-x

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© The Author(s) 2019

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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Fig. 2 — Intracellular PRL3 is externalized for PRL3-zumab binding. a Methodology for cell surface analysis of MHCC-LM3 cultured cells (CC) and tumor cells. b–d “Surface” detection of nonspecific control antigens (b), EGFR (c), or PRL3 (d) were detected by fluorescence-activated cell sorting (FACS) analysis using polyclonal human hIgG, anti-EGFR antibody (cetuximab), or anti-PRL3 antibody (PRL3-zumab), respectively. Representative FACS profiles from four biological replicates are shown. e Mean percentage ± s.d. of surface positive (surface+) live cells for each antigen were calculated by dividing the surface antigen-positive live cells (upper left quadrant) by total live cells (sum of both upper and lower left quadrants) in b–d. f Background-corrected values from e were normalized to CC surface expression levels for EGFR (filled circles) and PRL3 (filled squares). The mean fold change was calculated by the Student’s t test (mean ± s.d., n = 4 biologically independent samples). P values as indicated for each antigen. g Background-corrected values of MHCC-LM3 cells cultured under “Normal” vs. “Serum-starved” conditions for 72 h were normalized to “Normal” surface+ cell percentages for each antigen. The mean fold-change was calculated by the Student’s t test (mean ± s.d.) for EGFR (filled circles; n = 3 independent samples) and PRL3 (filled squares; n = 4 independent samples). P values as indicated for each antigen. Source data are provided as a Source Data file