The in vitro study of Her-2 targeted gold nanoshell liquid fluorocarbon poly lactic-co-glycolic acid ultrasound microcapsule for ultrasound imaging and breast tumor photothermal therapy

Journal of Biomaterials Science. Polymer Edition
Yu ZhangFeng-Hua Li

Abstract

Antibody-mediated targeting therapy has been successful in treating patients with breast cancer by improving the specificity and clinical efficacy. In this study, we constructed the human epidermal growth factor receptor-2 (Her2) antibody-conjugated ultrasound contrast agent with lactic-co-glycolic acid (PLGA) as film forming and perfluorocty bromide (PFOB) as internal material, which was coated by gold nanoshell (Her2-PFOB@PLGA@Au), to realize the integration of diagnosis and treatment. The contrast agent was spherical, with the diameter was 256.8 ± 53.4 nm, and had a good dispersion; Ultrasound imaging experiments in vitro showed that the gold nanoshell polylactic acid microcapsule was suitable for ultrasound contrast imaging with the exquisite and uniform dot intensive high echo. The agent had a great photothermal effect under the near-infrared (NIR) with no obvious biological toxicity for both Her2-positive and negative tumor cells; Moreover, both the results of laser scanning confocal microscope (LSCM) and flow cytometer (FCM) demonstrated the great specificity of Her2-PFOB@PLGA@Au conjugating with Her2 positive breast cancer cells (SKBR3). In conclusion, the successful synthesis of the Her2-PFOB@PLGA@Au microcapsule, offe...Continue Reading

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Citations

Jul 24, 2018·Journal of Biomaterials Science. Polymer Edition·Somayyeh Fallah Iri SoflaMortaza Mirzaei
Sep 1, 2019·Journal of Controlled Release : Official Journal of the Controlled Release Society·Majid SharifiMojtaba Falahati
Jun 8, 2021·European Journal of Pharmaceutics and Biopharmaceutics : Official Journal of Arbeitsgemeinschaft Für Pharmazeutische Verfahrenstechnik E.V·Tengteng ZouYu Cai

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Methods Mentioned

BETA
scanning electron microscopy
X-ray
flow cytometry
dynamic light scattering
fluorescence

Software Mentioned

SPSS

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