Combined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy

Weiguang Li, Jianpeng Xue, Hanmei Xu State Key Laboratory of Natural Medicines, The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation of Jiangsu Province, Department of Marine Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China Background: S-HM-3 is...

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Autores principales: Li W, Xue J, Xu H
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Publicado: Dove Medical Press 2019
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spelling oai:doaj.org-article:afb2875065204db6bed8ca5bcc858b232021-12-02T01:14:19ZCombined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy1178-2013https://doaj.org/article/afb2875065204db6bed8ca5bcc858b232019-02-01T00:00:00Zhttps://www.dovepress.com/combined-administration-of-ptx-and-s-hm-3-in-tpgssolutol-micelle-syste-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013Weiguang Li, Jianpeng Xue, Hanmei Xu State Key Laboratory of Natural Medicines, The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation of Jiangsu Province, Department of Marine Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China Background: S-HM-3 is a tumor angiogenesis inhibitor with short half-life (25 min). In this present, TPGS/Solutol polymeric micelles was prepared to load together insoluble paclitaxel (PTX) and soluble S-HM-3, expecting to together deliver them to the tumor site with long-circulating, targeting function and combating multi-drug resistance (MDR). Materials and methods: PTX and S-HM-3 loaded TPGS/Solutol micelles (PHTSm) were prepared by the method of thin-film evaporation, and characterized by dynamic light scattering, transmission electron microscope (TEM), atomic force microscopy (AFM) and releasing properties. The anticancer effect of the polymeric micelles system was evaluated and confirmed by experiments of in vitro cell uptake study, in vivo pharmacokinetics, and pharmacodynamics studies. Results: Micelles exhibited smooth spherical morphology with 20~30 nm and low critical micelle concentration (CMC) value of 0.000124 mg/mL. Only about 30% of PTX were slowly released from micelles at 48h, which can beneficial to the long circulation in blood. The results of in vitro cell assay proved that S-HM-3 could be easier to get into MDA-MB-231 cell, and its angiogenesis inhibition ability was also enhanced after integrating into micelles. In particular, the results of in vivo studies showed that the half-life of S-HM-3 and PTX was significantly prolonged 25.27 and 5.54 folds, and their AUC0-∞ was enhanced 129.78 and 15.65 times, respectively. Meanwhile 83.05% tumor inhibition rate of PHTSm was achieved compared with 59.99% of PTX. Conclusions: TPGS and Solutol micelles hold promising potential to resolve the conundrum of combined therapy of cytotoxic drug and angiogenesis inhibitor with different physicochemical property and anticancer mechanism in clinical use. Keywords: paclitaxel, angiogenesis inhibitor, combination therapy, TPGS, Solutol, anti-multidrug resistanceLi WXue JXu HDove Medical PressarticlePaclitaxelS-HM-3Combination therapyTPGSSolutolAnti-multidrug resistanceMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol Volume 14, Pp 1011-1026 (2019)
institution DOAJ
collection DOAJ
language EN
topic Paclitaxel
S-HM-3
Combination therapy
TPGS
Solutol
Anti-multidrug resistance
Medicine (General)
R5-920
spellingShingle Paclitaxel
S-HM-3
Combination therapy
TPGS
Solutol
Anti-multidrug resistance
Medicine (General)
R5-920
Li W
Xue J
Xu H
Combined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy
description Weiguang Li, Jianpeng Xue, Hanmei Xu State Key Laboratory of Natural Medicines, The Engineering Research Center of Synthetic Polypeptide Drug Discovery and Evaluation of Jiangsu Province, Department of Marine Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China Background: S-HM-3 is a tumor angiogenesis inhibitor with short half-life (25 min). In this present, TPGS/Solutol polymeric micelles was prepared to load together insoluble paclitaxel (PTX) and soluble S-HM-3, expecting to together deliver them to the tumor site with long-circulating, targeting function and combating multi-drug resistance (MDR). Materials and methods: PTX and S-HM-3 loaded TPGS/Solutol micelles (PHTSm) were prepared by the method of thin-film evaporation, and characterized by dynamic light scattering, transmission electron microscope (TEM), atomic force microscopy (AFM) and releasing properties. The anticancer effect of the polymeric micelles system was evaluated and confirmed by experiments of in vitro cell uptake study, in vivo pharmacokinetics, and pharmacodynamics studies. Results: Micelles exhibited smooth spherical morphology with 20~30 nm and low critical micelle concentration (CMC) value of 0.000124 mg/mL. Only about 30% of PTX were slowly released from micelles at 48h, which can beneficial to the long circulation in blood. The results of in vitro cell assay proved that S-HM-3 could be easier to get into MDA-MB-231 cell, and its angiogenesis inhibition ability was also enhanced after integrating into micelles. In particular, the results of in vivo studies showed that the half-life of S-HM-3 and PTX was significantly prolonged 25.27 and 5.54 folds, and their AUC0-∞ was enhanced 129.78 and 15.65 times, respectively. Meanwhile 83.05% tumor inhibition rate of PHTSm was achieved compared with 59.99% of PTX. Conclusions: TPGS and Solutol micelles hold promising potential to resolve the conundrum of combined therapy of cytotoxic drug and angiogenesis inhibitor with different physicochemical property and anticancer mechanism in clinical use. Keywords: paclitaxel, angiogenesis inhibitor, combination therapy, TPGS, Solutol, anti-multidrug resistance
format article
author Li W
Xue J
Xu H
author_facet Li W
Xue J
Xu H
author_sort Li W
title Combined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy
title_short Combined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy
title_full Combined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy
title_fullStr Combined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy
title_full_unstemmed Combined administration of PTX and S-HM-3 in TPGS/Solutol micelle system for oncotarget therapy
title_sort combined administration of ptx and s-hm-3 in tpgs/solutol micelle system for oncotarget therapy
publisher Dove Medical Press
publishDate 2019
url https://doaj.org/article/afb2875065204db6bed8ca5bcc858b23
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AT xuej combinedadministrationofptxandshm3intpgssolutolmicellesystemforoncotargettherapy
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