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Journal of colloid and interface science v.512, 2018년, pp.249 - 259   SCI SCIE
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Targeted photodynamic therapy of breast cancer cells using lactose-phthalocyanine functionalized gold nanoparticles

García Calavia, Paula    (School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK   ); Chambrier, Isabelle    (School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK   ); Cook, Michael J.    (School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK   ); Haines, Alan H.    (School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK   ); Field, Robert A.    (Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK   ); Russell, David A.    (School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK  );
  • 초록  

    Abstract Gold nanoparticles (AuNPs), which have been widely used for the delivery of photosensitizers for photodynamic therapy (PDT) of cancer, can be dispersed in aqueous solutions improving the delivery of the hydrophobic photosensitizer into the body. Furthermore, the large surface of AuNPs can be functionalized with a variety of ligands, including proteins, nucleic acids and carbohydrates, that allow selective targeting to cancer tissue. In this study, gold nanoparticles were functionalized with a mixed monolayer of a zinc phthalocyanine and a lactose derivative. For the first time, a carbohydrate was used with a dual purpose, as the stabilizing agent of the gold nanoparticles in aqueous solutions and as the targeting agent for breast cancer cells. The functionalization of the phthalocyanine-AuNPs with lactose led to the production of water-dispersible nanoparticles that are able to generate singlet oxygen and effect cell death upon irradiation. The targeting ability of lactose of the lactose-phthalocyanine functionalized AuNPs was studied in vitro towards the galectin-1 receptor on the surface of breast cancer cells. The targeting studies showed the exciting potential of lactose as a specific targeting agent for galactose-binding receptors overexpressed on breast cancer cells. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Photodynamic therapy .   Targeting .   Gold nanoparticles .   Carbohydrates .   Galectin-1 .   Zinc phthalocyanines.  

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