Back to Journals » International Journal of Nanomedicine » Volume 10 » Issue 1

Enhancement of radiotherapy by ceria nanoparticles modified with neogambogic acid in breast cancer cells

Authors Chen F, Zhang XH, Hu XD, Zhang W, Lou ZC, Xie LH, Liu PD, Zhang HQ

Received 16 February 2015

Accepted for publication 16 June 2015

Published 14 August 2015 Volume 2015:10(1) Pages 4957—4969

DOI https://doi.org/10.2147/IJN.S82980

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Lei Yang

Feng Chen,1 Xiao Hong Zhang,1 Xiao Dan Hu,1 Wei Zhang,1 Zhi Chao Lou,1 Li Hua Xie,1 Pei Dang Liu,2 Hai Qian Zhang1,2

1College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 2Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing, People’s Republic of China

Abstract: Radiotherapy is one of the main strategies for cancer treatment but has significant challenges, such as cancer cell resistance and radiation damage to normal tissue. Radiosensitizers that selectively increase the susceptibility of cancer cells to radiation can enhance the effectiveness of radiotherapy. We report here the development of a novel radiosensitizer consisting of monodispersed ceria nanoparticles (CNPs) covered with the anticancer drug neogambogic acid (NGA-CNPs). These were used in conjunction with radiation in MCF-7 breast cancer cells, and the efficacy and mechanisms of action of this combined treatment approach were evaluated. NGA-CNPs potentiated the toxic effects of radiation, leading to a higher rate of cell death than either treatment used alone and inducing the activation of autophagy and cell cycle arrest at the G2/M phase, while pretreatment with NGA or CNPs did not improve the rate of radiation-induced cancer cells death. However, NGA-CNPs decreased both endogenous and radiation-induced reactive oxygen species formation, unlike other nanomaterials. These results suggest that the adjunctive use of NGA-CNPs can increase the effectiveness of radiotherapy in breast cancer treatment by lowering the radiation doses required to kill cancer cells and thereby minimizing collateral damage to healthy adjacent tissue.

Keywords: ceria nanoparticles, radiotherapy, breast cancer cells, neogambogic acid, radiosensitization

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]

 

Readers of this article also read:

Emerging and future therapies for hemophilia

Carr ME, Tortella BJ

Journal of Blood Medicine 2015, 6:245-255

Published Date: 3 September 2015

A new recombinant factor VIII: from genetics to clinical use

Kannicht C, Kohla G, Tiemeyer M, Walter O, Sandberg H

Drug Design, Development and Therapy 2015, 9:3817-3819

Published Date: 23 July 2015

A new recombinant factor VIII: from genetics to clinical use

Santagostino E

Drug Design, Development and Therapy 2014, 8:2507-2515

Published Date: 12 December 2014

Patient preference and ease of use for different coagulation factor VIII reconstitution device scenarios: a cross-sectional survey in five European countries

Cimino E, Linari S, Malerba M, Halimeh S, Biondo F, Westfeld M

Patient Preference and Adherence 2014, 8:1713-1720

Published Date: 12 December 2014

Pharmacokinetics and pharmacodynamics of acetylsalicylic acid after intravenous and oral administration to healthy volunteers

Nagelschmitz J, Blunck M, Kraetzschmar J, Ludwig M, Wensing G, Hohlfeld T

Clinical Pharmacology: Advances and Applications 2014, 6:51-59

Published Date: 19 March 2014

Methacrylic-based nanogels for the pH-sensitive delivery of 5-Fluorouracil in the colon

Ashwanikumar N, Kumar NA, Nair SA, Kumar GS

International Journal of Nanomedicine 2012, 7:5769-5779

Published Date: 15 November 2012

Crystallization after intravitreal ganciclovir injection

Pitipol Choopong, Nattaporn Tesavibul, Nattawut Rodanant

Clinical Ophthalmology 2010, 4:709-711

Published Date: 14 July 2010