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Toxics 2015, 3(4), 390-413; doi:10.3390/toxics3040390

Nanotoxicology and Metalloestrogens: Possible Involvement in Breast Cancer

Oklahoma State University Center for Health Sciences, Department of Pharmacology & Physiology, Tulsa, OK 74107-1898, USA
Academic Editors: Laura Braydich-Stolle and Saber M. Hussain
Received: 14 July 2015 / Revised: 22 October 2015 / Accepted: 23 October 2015 / Published: 28 October 2015
(This article belongs to the Collection Environmental and Health Risks of Nanotechnology)
View Full-Text   |   Download PDF [663 KB, uploaded 28 October 2015]

Abstract

As the use of nanotechnology has expanded, an increased number of metallic oxides have been manufactured, yet toxicology testing has lagged significantly. Metals used in nano-products include titanium, silicon, aluminum, silver, zinc, cadmium, cobalt, antimony, gold, etc. Even the noble metals, platinum and cerium, have been used as a treatment for cancer, but the toxicity of these metals is still unknown. Significant advances have been made in our understanding and treatment of breast cancer, yet millions of women will experience invasive breast cancer in their lifetime. The pathogenesis of breast cancer can involve multiple factors; (1) genetic; (2) environmental; and (3) lifestyle-related factors. This review focuses on exposure to highly toxic metals, (“metalloestrogens” or “endocrine disruptors”) that are used as the metallic foundation for nanoparticle production and are found in a variety of consumer products such as cosmetics, household items, and processed foods, etc. The linkage between well-understood metalloestrogens such as cadmium, the use of these metals in the production of nanoparticles, and the relationship between their potential estrogenic effects and the development of breast cancer will be explored. This will underscore the need for additional testing of materials used in nano-products. Clearly, a significant amount of work needs to be done to further our understanding of these metals and their potential role in the pathogenesis of breast cancer. View Full-Text
Keywords: cadmium; metalloestrogen; heavy metal; aluminum; titanium; silicon; silver; nanotoxicology cadmium; metalloestrogen; heavy metal; aluminum; titanium; silicon; silver; nanotoxicology
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wallace, D.R. Nanotoxicology and Metalloestrogens: Possible Involvement in Breast Cancer. Toxics 2015, 3, 390-413.

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