PMID- 30554018 OWN - NLM STAT- MEDLINE DCOM- 20190610 LR - 20190613 IS - 1873-4367 (Electronic) IS - 0927-7765 (Linking) VI - 175 DP - 2019 Mar 1 TI - Redox-responsive polymer inhibits macrophages uptake for effective intracellular gene delivery and enhanced cancer therapy. PG - 392-402 LID - S0927-7765(18)30896-8 [pii] LID - 10.1016/j.colsurfb.2018.12.016 [doi] AB - The development of advanced gene delivery carriers with stimuli-responsive release manner for tumor therapeutics is desirable, since they can exclusively release the therapeutic gene via their structural changes in response to the specific stimuli of the target site. Moreover, interactions between macrophages and drug delivery systems (DDSs) seriously impair the treatment efficiency of DDSs, thus macrophages uptake inhibition would to some extent improve the intracellular uptake of DDSs in tumor cells. Herein, a PEGylated redox-responsive gene delivery system was developed for effective cancer therapy. PEG modified glycolipid-like polymer (P-CSSO) was electrostatic interacted with p53 to form P-CSSO/p53 complexes, which exhibited an enhanced redox sensitivity in that the disulfide bond was degraded and the rate the plasmid released from P-CSSO was 2.29-fold that of nonresponsive platform (P-CSO-SA) in 10 mM levels of glutathione (GSH). PEGylation could significantly weaken macrophages uptake, while enhance the accumulation of P-CSSO in tumor cells both in vitro and in vivo. Compared with nonresponsive complexes (P-CSO-SA/p53) (59.2%) and Lipofectamine 2000/p53 complexes (52.0%), the tumor inhibition rate of P-CSSO/p53 complexes (77.1%) significantly increased, which was higher than CSSO/p53 complexes (69.9%). The present study indicates that tumor microenvironment sensitive and macrophages uptake suppressive P-CSSO/p53 is a powerful in vivo gene delivery system for enhanced anticancer therapy. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Wen, Lijuan AU - Wen L AD - College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China. FAU - Hu, Yingwen AU - Hu Y AD - Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, USA. FAU - Meng, Tingting AU - Meng T AD - College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China. FAU - Tan, Yanan AU - Tan Y AD - Ocean College, Zhejiang University, Zheda Road, Zhoushan, 316021, China. FAU - Zhao, Mengdan AU - Zhao M AD - Women's Hospital, School of Medicine, Zhejiang University, 2 Xueshi Road, Hangzhou, 310006, China. FAU - Dai, Suhuan AU - Dai S AD - College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China. FAU - Yuan, Hong AU - Yuan H AD - College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China. FAU - Hu, Fuqiang AU - Hu F AD - College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China. Electronic address: hufq@zju.edu.cn. LA - eng PT - Journal Article DEP - 20181207 PL - Netherlands TA - Colloids Surf B Biointerfaces JT - Colloids and surfaces. B, Biointerfaces JID - 9315133 RN - 0 (Drug Carriers) RN - 0 (Glycolipids) RN - 0 (Micelles) RN - 0 (Polymers) RN - 0 (TP53 protein, human) RN - 0 (Tumor Suppressor Protein p53) RN - 9012-76-4 (Chitosan) RN - GAN16C9B8O (Glutathione) SB - IM MH - Animals MH - Apoptosis MH - Carcinoma, Hepatocellular/*drug therapy/metabolism/pathology MH - Cell Cycle MH - Cell Proliferation MH - Chitosan/chemistry MH - Drug Carriers/*chemistry MH - Female MH - *Gene Transfer Techniques MH - Glutathione/chemistry MH - Glycolipids/chemistry MH - Humans MH - Liver Neoplasms/*drug therapy/metabolism/pathology MH - Macrophages/*metabolism MH - Mice MH - Mice, Inbred BALB C MH - Mice, Nude MH - Micelles MH - Oxidation-Reduction MH - Polymers/*administration & dosage/chemistry MH - Tumor Cells, Cultured MH - Tumor Suppressor Protein p53/*administration & dosage/genetics MH - Xenograft Model Antitumor Assays OTO - NOTNLM OT - Cancer therapy OT - Gene delivery OT - Macrophages OT - PEGylation OT - Redox-responsive EDAT- 2018/12/17 06:00 MHDA- 2019/06/14 06:00 CRDT- 2018/12/17 06:00 PHST- 2018/09/21 00:00 [received] PHST- 2018/11/09 00:00 [revised] PHST- 2018/12/07 00:00 [accepted] PHST- 2018/12/17 06:00 [pubmed] PHST- 2019/06/14 06:00 [medline] PHST- 2018/12/17 06:00 [entrez] AID - S0927-7765(18)30896-8 [pii] AID - 10.1016/j.colsurfb.2018.12.016 [doi] PST - ppublish SO - Colloids Surf B Biointerfaces. 2019 Mar 1;175:392-402. doi: 10.1016/j.colsurfb.2018.12.016. Epub 2018 Dec 7.