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A c(RGDfE) conjugated multi-functional nanomedicine delivery system for targeted pancreatic cancer therapy.
- Source :
- Journal of Materials Chemistry B; 2015, Vol. 3 Issue 6, p1049-1058, 10p
- Publication Year :
- 2015
-
Abstract
- Pancreatic cancer is one of the five most lethal malignancies and has a poor prognosis due to its abundant stromal barriers and lack of effective available therapies. Although gemcitabine has been used as a standard therapy for several decades, there has been little progress in the improvement of the 5 year survive rate due to the low targeting efficiency for pancreatic cancer cells. To achieve a targeted delivery of gemcitabine to pancreatic cancer cells, we have developed a c(RGDfE) [cyclic (Arg-Gly-Asp-d-Phe-Glu)] conjugated multi-functional nanomedicine delivery system composed of a magnetic core and mesoporous silica shell. These magnetic mesoporous nanoparticles demonstrated sufficient relaxivity properties for detection with magnetic resonance imaging (MRI). These c(RGDfE) peptide conjugated magnetic mesoporous silica nanoparticles [c(RGDfE)–pMMSNs] can target pancreatic cancer cells and increase cellular uptake in human pancreatic cancer cell lines that overexpress integrin α<subscript>ν</subscript>β<subscript>3</subscript>. Gemcitabine loaded c(RGDfE)–pMMSNs were most efficiently targeted to pancreatic cancer cells (BxPC-3). Growth inhibition of the BxPC-3 cell line was achieved in a time dependent manner consistent with observed drug release behavior. Intracellular targeted gemcitabine delivery using c(RGDfE)–pMMSNs offers a promising approach for the treatment of pancreatic cancer. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 2050750X
- Volume :
- 3
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry B
- Publication Type :
- Academic Journal
- Accession number :
- 100769784
- Full Text :
- https://doi.org/10.1039/c4tb01402b