

FOLLOWUS
a.College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
b.Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu 610041, China
c.Laboratory Animal Center of Sichuan University, Chengdu 610041, China
dr_liangruichao@scu.edu.cn (R.C.L.)
hongtan@scu.edu.cn (H.T.)
Received:11 November 2021,
Revised:2022-1-4,
Accepted:12 January 2022,
Online First:21 March 2022,
Published:01 May 2022
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Wu, H. C.; Feng, Y.; Song, X. Y.; Song, C. Y.; Chen, J. L.; Wang, Y. C.; He, X. L.; Liang, R. C.; Li, J. H.; Tan, H. Implantable polyurethane scaffolds loading with PEG-paclitaxel conjugates for the treatment of glioblastoma multiforme. Chinese J. Polym. Sci. 2022, 40, 491–503
He-Cheng Wu, Yuan Feng, Xing-Ying Song, et al. Implantable Polyurethane Scaffolds Loading with PEG-Paclitaxel Conjugates for the Treatment of Glioblastoma Multiforme[J]. Chinese Journal of Polymer Science, 2022, 40(5): 491-503.
Wu, H. C.; Feng, Y.; Song, X. Y.; Song, C. Y.; Chen, J. L.; Wang, Y. C.; He, X. L.; Liang, R. C.; Li, J. H.; Tan, H. Implantable polyurethane scaffolds loading with PEG-paclitaxel conjugates for the treatment of glioblastoma multiforme. Chinese J. Polym. Sci. 2022, 40, 491–503 DOI: 10.1007/s10118-022-2695-3.
He-Cheng Wu, Yuan Feng, Xing-Ying Song, et al. Implantable Polyurethane Scaffolds Loading with PEG-Paclitaxel Conjugates for the Treatment of Glioblastoma Multiforme[J]. Chinese Journal of Polymer Science, 2022, 40(5): 491-503. DOI: 10.1007/s10118-022-2695-3.
Improvement of the treatment for Glioblastoma multiforme (GBM) especially the development of
in situ
controllable drug release is still a major concern. In this study
we developed waterborne biodegradable polyurethane (WBPU) scaffolds incorporated with redox-sensitive and RGD-decorated paclitaxel (PTX) polymer-drug conjugates (PDCs) for targeted GBM therapy
in situ
. The drug scaffolds could be implanted at residual GBM site post-operation. Dual-targeting PTX-PDCs were obtained through step-by-step conjugation of disulfide linked PTX
poly(ethylene glycol) (PEG)
and arginine-glycine-aspartic acid (RGD). The RGD-modified PTX-PDCs were spherical nanoparticles (NPs) that would be released from scaffolds and identified GBM cells actively. Internalized redox-sensitive PTX-PDCs would be decomposed and release PTX inside GBM cells under the circumstances of glutathione (GSH). The release profiles of PTX from the scaffolds with/without GSH were investigated.
In vitro
cytotoxicity assay revealed that the dual-targeting PTX-PDCs from scaffolds could specifically kill GBM cells and protect normal cells
suggesting that dual-targeting PTX-PDC-loaded scaffolds may have the potential to repair tumor-induced brain injury.
In vivo
anti-recurrence assay indicated that the PTX-PDC-scaffolds could deliver PTX-PDCs to the GBM cells followed by inhibiting tumor growth and inducing apoptosis. In general
the PTX prodrug-loaded devices exhibited significant anti-GBM effects and normal tissue protection simultaneously
indicating that the WBPU scaffolds incorporated with dual-targeting PTX-PDCs may be a promising strategy for local therapy of GBM.
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