Impact of the strategy adopted for drug loading in nonporous silica nanoparticles on the drug release and cytotoxic activity

被引:20
作者
Riva, Benedetta [1 ]
Bellini, Michela [1 ]
Corvi, Eleonora [1 ]
Verderio, Paolo [1 ]
Rozek, Ewa [1 ]
Colzani, Barbara [1 ]
Avvakumova, Svetlana [1 ]
Radeghieri, Annalisa [2 ]
Rizzuto, Maria Antonietta [1 ]
Morasso, Carlo [3 ]
Colombo, Miriam [1 ]
Prosperi, Davide [1 ,3 ]
机构
[1] Univ Milano Bicocca, Dipartimento Biotecnol & Biosci, Piazza Sci 2, I-20126 Milan, Italy
[2] Univ Brescia, Dipartimento Med Mol & Traslaz, Brescia, Italy
[3] ICS Maugeri SpA SB, Nanomed Lab, Via S Maugeri 10, I-27100 Pavia, Italy
关键词
Hard nanoparticles; Nonporous silica nanoparticles; Drug delivery systems; Drug conjugation; Chemotherapy; Doxorubicin; BIOMEDICAL APPLICATIONS; CANCER-THERAPY; IN-VIVO; DELIVERY-SYSTEM; CLINICAL-TRIALS; NANOCRYSTALS; DOXORUBICIN; SIZE; BIODISTRIBUTION; NANOMEDICINE;
D O I
10.1016/j.jcis.2018.02.040
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Nanoparticles are normally classified as "hard", mainly consisting of metal or metal oxide cores, or "soft", including polymer-based, liposomes and biomimetic nanoparticles. Soft nanoparticles have been studied in depth for drug formulation and therapeutic delivery applications, albeit hard nanoparticles may offer easier synthesis, smaller size and more effective tumor penetration. Among them, silica nanoparticles maintain excellent biocompatibility and biodegradability and can be finely adjusted in size and shape, easily produced in a large scale and functionalized or loaded with active molecules. To help filling the gap of a poor clinical translation of hard nanoparticles, we have designed and developed three different nonporous silica nanocarriers loading the chemotherapeutic doxorubicin within the core matrix, on the surface or both inside and outside, respectively. A comparative study was performed on drug loading and drug release, silica matrix degradation and nanodrug cytotoxic activity, highlighting unexpected correlation between the strategy adopted for drug incorporation and nanoparticle behavior in a physiological environment. This study offers a new insight on the impact of the choice of the prodrug nanoparticles on the kinetics and efficacy of drug delivery, which may encourage the scientific community in developing a new generation of drug delivery systems based on hard nanocarriers. (C) 2018 Elsevier Inc. All rights reserved.
引用
收藏
页码:18 / 26
页数:9
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