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. 2020 Aug 11;15:5927–5949. doi: 10.2147/IJN.S254108

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© 2020 He et al.

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HE, TUNEL, PCNA and HSP70 staining of the tumor tissue at 1 day after various treatments. From top to bottom: HE-stained cells, TUNEL-positive cells (green), PCNA-positive cells (red), TUNEL and PCNA merge, HSP70-positive cells (red). The DAPI-labeled nuclei is blue. The scale bars are 50 μm.

Abbreviations: HE, hematoxylin and eosin staining; TUNEL, terminal deoxynucleotidyl transferase dUTP nick end labeling; PCNA, proliferating cell nuclear antigen; HSP70, Heat shock 70 kDa protein; DAPI, 4,6-diamidino-2-phenylindole; A-FP NPs, AS1411-PLGA@FePc@PFP; FP NPs, PLGA@FePc@PFP.