Bacillus-shape design of polymer based drug delivery systems with janus-faced function for synergistic targeted drug delivery and more effective cancer therapy.

Abstract:

:The particle shape of the drug delivery systems had a strong impact on their in vitro and in vivo performance, but there was limited availability of techniques to produce the specific shaped drug carriers. In this article, the novel methotrexate (MTX) decorated MPEG-PLA nanobacillus (MPEG-PLA-MTX NB) was prepared by the self-assembly technique followed by the extrusion through SPG membrane with high N2 pressure for targeted drug delivery, in which Janus-like MTX was not only used as a specific anticancer drug but could also be served as a tumor-targeting ligand. The MPEG-PLA-MTX NBs demonstrated much higher in vitro and in vivo targeting efficiency compared to the MPEG-PLA-MTX nanospheres (MPEG-PLA-MTX NSs) and MPEG-PLA nanospheres (MPEG-PLA NSs). In addition, the MPEG-PLA-MTX NBs also displayed much more excellent in vitro and in vivo antitumor activity than the MPEG-PLA-MTX NSs and free MTX injection. To our knowledge, this work provided the first example of the integration of the shape design (which mediated an early phase tumor accumulation and a late-phase cell internalization) and Janus-faced function (which mediated an early phase active targeting effect and a late-phase anticancer effect) on the basis of nanoscaled drug delivery systems. The highly convergent and cooperative drug delivery strategy opens the door to more drug delivery systems with new shapes and functions for cancer therapy.

journal_name

Mol Pharm

journal_title

Molecular pharmaceutics

authors

Cui F,Lin J,Li Y,Li Y,Wu H,Yu F,Jia M,Yang X,Wu S,Xie L,Ye S,Luo F,Hou Z

doi

10.1021/mp500464b

subject

Has Abstract

pub_date

2015-04-06 00:00:00

pages

1318-27

issue

4

eissn

1543-8384

issn

1543-8392

journal_volume

12

pub_type

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