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Gold nanoparticles, radiations and the immune system: Current insights into the physical mechanisms and the biological interactions of this new alliance towards cancer therapy.

Abstract：

:Considering both cancer's serious impact on public health and the side effects of cancer treatments, strategies towards targeted cancer therapy have lately gained considerable interest. Employment of gold nanoparticles (GNPs), in combination with ionizing and non-ionizing radiations, has been shown to improve the effect of radiation treatment significantly. GNPs, as high-Z particles, possess the ability to absorb ionizing radiation and enhance the deposited dose within the targeted tumors. Furthermore, they can convert non-ionizing radiation into heat, due to plasmon resonance, leading to hyperthermic damage to cancer cells. These observations, also supported by experimental evidence both in vitro and in vivo systems, reveal the capacity of GNPs to act as radiosensitizers for different types of radiation. In addition, they can be chemically modified to selectively target tumors, which renders them suitable for future cancer treatment therapies. Herein, a current review of the latest data on the physical properties of GNPs and their effects on GNP circulation time, biodistribution and clearance, as well as their interactions with plasma proteins and the immune system, is presented. Emphasis is also given with an in depth discussion on the underlying physical and biological mechanisms of radiosensitization. Furthermore, simulation data are provided on the use of GNPs in photothermal therapy upon non-ionizing laser irradiation treatment. Finally, the results obtained from the application of GNPs at clinical trials and pre-clinical experiments in vivo are reported.

journal_name

Pharmacol Ther

journal_title

Pharmacology & therapeutics

authors

Dimitriou NM,Tsekenis G,Balanikas EC,Pavlopoulou A,Mitsiogianni M,Mantso T,Pashos G,Boudouvis AG,Lykakis IN,Tsigaridas G,Panayiotidis MI,Yannopapas V,Georgakilas AG

doi

10.1016/j.pharmthera.2017.03.006

subject

Has Abstract

pub_date

2017-10-01 00:00:00

pages

1-17

eissn

0163-7258

issn

1879-016X

pii

S0163-7258(17)30086-4

journal_volume

178

pub_type

杂志文章,评审

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