TPGS‐Functionalized Polydopamine‐Modified Mesoporous Silica as Drug Nanocarriers for Enhanced Lung Cancer Chemotherapy against Multidrug Resistance. Issue 29 (8th June 2017)

• Record Type: Journal Article
• Authors: Cheng, Wei; Liang, Chaoyu; Xu, Lv; Liu, Gan; Gao, Nansha; Tao, Wei; Luo, Lingyan; Zuo, Yixiong; Wang, Xusheng; Zhang, Xudong; Zeng, Xiaowei; Mei, Lin
• Is Part Of: Small. Volume 13:Issue 29(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-06-08
• Subjects: dopamine -- lung cancer -- mesoporous silica nanoparticles -- multidrug resistance -- nanomedicine; Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.201700623
• Languages: English
• ISSNs: 1613-6810

Abstract

Abstract : A nanocarrier system ofd ‐a‐tocopheryl polyethylene glycol 1000 succinate (TPGS)‐functionalized polydopamine‐coated mesoporous silica nanoparticles (NPs) is developed for sustainable and pH‐responsive delivery of doxorubicin (DOX) as a model drug for the treatment of drug‐resistant nonsmall cell lung cancer. Such nanoparticles are of desired particle size, drug loading, and drug release profile. The surface morphology, surface charge, and surface chemical properties are also successfully characterized by a series of techniques such as transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), Brunauer‐Emmett‐Teller (BET) method, thermal gravimetric analysis (TGA), dynamic light scattering (DLS), and Fourier transform infrared spectroscopy (FTIR). The normal A549 cells and drug‐resistant A549 cells are employed to access the cytotoxicity and cellular uptake of the NPs. The therapeutic effects of TPGS‐conjugated nanoparticles are evaluated in vitro and in vivo. Compared with free DOX and DOX‐loaded NPs without TPGS ligand modification, MSNs‐DOX@PDA‐TPGS exhibits outstanding capacity to overcome multidrug resistance and shows better in vivo therapeutic efficacy. This splendid drug delivery platform can also be sued to deliver other hydrophilic and hydrophobic drugs. Abstract : A nanocarrier system ofd ‐a‐tocopheryl polyethylene glycol 1000 succinate (TPGS)‐functionalized polydopamine‐coated mesoporous silica nanoparticles (MSNs@PDA‐TPGS) for sustained and controlled delivery of doxorubicin (DOX) for the treatment of drug‐resistant nonsmall cell lung cancer is fabricated. These drug‐loaded nanoparticles show strong pH‐responsive characteristic and could overcome multidrug resistance of tumor cells. This MSNs‐DOX@PDA‐TPGS exhibits enhanced in vivo therapeutic efficacy.