Molecular structure matters: PEG-b-PLA nanoparticles with hydrophilicity and deformability demonstrate their advantages for high-performance delivery of anti-cancer drugs

文献信息

发布日期 2013-04-30
DOI 10.1039/C3TB20406E
影响因子 6.331
作者

Qinzheng Yang, Hua Yue, Bin Wang, Zhiguo Su, Wei Wei, Guanghui Ma


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摘要

Various carriers are being advanced for anti-cancer therapy, which can protect drugs and ferry them to the target site. However, little understanding exists regarding the effect of molecular structure on anti-cancer drug delivery efficiency. To fill this knowledge gap, we take poly(lactic acid) (PLA), poly(lactide-co-glycolide) (PLGA), and poly-ethylene glycol-co-poly-lactide (PEG-b-PLA) polymers as prototype materials and comparatively explore the inherent relationship between the molecular structure and the delivery ability. Compared with PLA and PLGA NPs, PEG-b-PLA ones possess the advantages of longer blood circulation time, more tumor accumulation, and better intratumoral delivery ability. Subsequent mechanism investigations reveal that the molecular structure will regulate the polymer arrangement and render NPs different hydrophilicity/deformability, which dictate the distinct delivery performances. Finally, the superior PEG-b-PLA NPs are further loaded with the anti-cancer drug paclitaxel (PTX) and functionalized with magnetic (M) Fe3O4 nanocrystals. As-designed PTX/M PEG-b-PLA NPs show much better tumor inhibition efficacy and fewer side effects than the commercialized Taxol® formulation, strongly supporting their use as high-performance carriers for anti-cancer therapy.

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来源期刊

Journal of Materials Chemistry B

Journal of Materials Chemistry B
CiteScore: 12
自引率: 4.9%
年发文量: 831

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry B are listed below. This list is neither exhaustive nor exclusive. Antifouling coatings Biocompatible materials Bioelectronics Bioimaging Biomimetics Biomineralisation Bionics Biosensors Diagnostics Drug delivery Gene delivery Immunobiology Nanomedicine Regenerative medicine & Tissue engineering Scaffolds Soft robotics Stem cells Therapeutic devices image block All articles published in Journal of Materials Chemistry B from 2019 onwards will be indexed in MEDLINE®. Articles that primarily focus on providing insight into the underlying science and performance of biomaterials within a biological environment are more suited to our companion journal, Biomaterials Science.

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