Active targeting of mesoporous silica drug carriers enhances γ-secretase inhibitor efficacy in an in vivo model for breast cancer

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Wittig R, Rosenholm JM, Haartman E, Hemming J, Genze F, Bergman L, Simmet T, Lindén M, Sahlgren C
Förläggare: Future Medicine Ltd London, UK
Publiceringsår: 2014
Tidskrift: Nanomedicine
Volym: 9
Nummer: 7
Artikelns första sida, sidnummer: 971
Artikelns sista sida, sidnummer: 987
eISSN: 1748-6963


Abstrakt

Aim: In this article, we use an alternative cancer model for the evaluation of nanotherapy, and assess the impact of surface functionalization and active targeting of mesoporous silica nanoparticles (MSNPs) on therapeutic efficacy in vivo. Materials & methods: We used the chorioallantoic membrane xenograft assay to investigate the biodistribution and therapeutic efficacy of folate versus polyethyleneimine-functionalized γ-secretase inhibitor-loaded MSNPs in breast and prostate tumor models. Results: γ-secretase inhibitor-loaded MSNPs inhibited tumor growth in breast and prostate cancer xenografts. Folate conjugation improved the therapeutic outcome in folic acid receptor-positive breast cancer, but not in prostate cancer lacking the receptor. Conclusion: The results demonstrate that therapeutic efficacy is linked to cellular uptake of MSNPs as opposed to tumor accumulation, and show that MSNP-based delivery of γ-secretase inhibitors is therapeutically effective in both breast and prostate cancer. In this article, we present a model system for a medium-to-high throughput, cost-effective, quantitative evaluation of nanoparticulate drug carriers.

Senast uppdaterad 2019-05-12 vid 05:14