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. 2017 Jun 8;8(6):e2864. doi: 10.1038/cddis.2017.242

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Copyright © 2017 The Author(s)

Cell Death and Disease is an open-access journal published by Nature Publishing Group. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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UCNPs-Ce6-mediated PDT promotes the cholesterol efflux of THP-1 macrophage-derived foam cells. (a) The effect of PDT on the intracellular lipid burden measured by oil red O staining (scale bar, 50 μm). (b) The effect of PDT on the intracellular lipid burden measured by Dil ox-LDL and DAPI staining (scale bar, 50 μm). (c) The quantitative detection of the cholesterol efflux following PDT using the fluorometric assay. (n=3; *P<0.05 versus control group, **P<0.01 versus control group)