Premium
Multifunctional WS 2 @Poly(ethylene imine) Nanoplatforms for Imaging Guided Gene‐Photothermal Synergistic Therapy of Cancer
Author(s) -
Zhang Chunfang,
Yong Yuan,
Song Li,
Dong Xinghua,
Zhang Xiao,
Liu Xiangfeng,
Gu Zhanjun,
Zhao Yuliang,
Hu Zhongbo
Publication year - 2016
Publication title -
advanced healthcare materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.288
H-Index - 90
eISSN - 2192-2659
pISSN - 2192-2640
DOI - 10.1002/adhm.201600633
Subject(s) - photothermal therapy , survivin , gene silencing , cancer cell , in vivo , cancer research , biophysics , materials science , genetic enhancement , cell , apoptosis , chemistry , cancer , nanotechnology , biochemistry , medicine , gene , biology , microbiology and biotechnology
The combination of photothermal therapy (PTT) with gene therapy (GT) to improve PTT efficiency and thus eliminate cancer cells under mild hyperthermia is highly needed. Herein, multifunctional WS 2 @poly(ethylene imine) (WS 2 @PEI) nanoplatform has been designed and constructed for gene‐photothermal synergistic therapy of tumors at mild condition. After a surface modification of WS 2 with a positively charged PEI, the as‐prepared WS 2 @PEI nanoplatform can not only act as an efficient survivin‐siRNA carrier for GT but also exhibit remarkable near‐infrared (NIR) photothermal effects for PTT. On the one hand, the photothermal effects induced by WS 2 @PEI upon NIR irradiation can enhance the cellular uptake owing to the increase of the cell membrane permeability, which leads to the remarkable enhancement of silencing efficiency of survivin. On the other hand, the silencing of survivin can increase the apoptosis as well as reduce the heat resistance of cancer cells by downregulating the heat shock protein 70 expressions, which greatly enhance the sensitivity of cancer cells to PTT. As a result, compared to PTT or GT treatment alone, WS 2 @PEI mediated synergistic GT/PTT therapy remarkably enhances in vitro cancer cell damage and in vivo tumor elimination.