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Issue 34, 2017
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Thermally triggered theranostics for pancreatic cancer therapy

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Abstract

Hybrid iron oxide–gold nanoparticles (HNPs) show the ability to bind drugs onto their surface with a triggered release at elevated temperatures. The iron oxide core allows for diagnostic imaging whilst heating of the gold shell upon laser irradiation reverses drug binding. This study exploits the reversible binding of novel polyamine based drugs in order to provide a specific and effective method for pancreatic cancer treatment. Here we used a novel bisnaphthalamido (BNIP) based drug series. Our hybrid nanoparticles (50 nm) showed the ability to load drugs onto their surface (3 : 1 : 0.25, drug : Fe : Au). By exploiting the surface-to-drug electrostatic interaction of a range of BNIP agents, heat triggered drug release was achieved. A 12-fold reduction in IC50 after 24 h in vitro and a 5-fold reduction of tumour retardation in vivo compared with free drug in pancreatic models after treatment were achieved with the HNP-formulation and laser irradiation. This heat activated system could provide a key platform for future therapeutic strategies.

Graphical abstract: Thermally triggered theranostics for pancreatic cancer therapy

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Publication details

The article was received on 18 Apr 2017, accepted on 31 Jul 2017 and first published on 03 Aug 2017


Article type: Paper
DOI: 10.1039/C7NR02751F
Citation: Nanoscale, 2017,9, 12735-12745
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    Thermally triggered theranostics for pancreatic cancer therapy

    M. Malekigorji, M. Alfahad, P. Kong Thoo Lin, S. Jones, A. Curtis and C. Hoskins, Nanoscale, 2017, 9, 12735
    DOI: 10.1039/C7NR02751F

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