Table of Contents
Lung Cancer International
Volume 2014, Article ID 853158, 6 pages
http://dx.doi.org/10.1155/2014/853158
Research Article

Heavy Metal Content in Thoracic Tissue Samples from Patients with and without NSCLC

1Wellness Integrative, 14795 Jeffrey Road, Suite 101, Irvine, CA 92618, USA
2Arizona State University, 1151 South Forest Avenue, Tempe, AZ 85287, USA
3University of California, Irvine, CA 92697, USA
4The Translational Genomics Research Institute, 445 N 5th Street, Phoenix, AZ 85004, USA
5Humboldt Medical Specialists, Hematology/Oncology, 2504 Harrison Avenue, Suite C, Eureka, CA 95501, USA
6Cancer Treatment Centers of America, 14200 W Celebrate Life Way, Goodyear, AZ 85338, USA

Received 2 March 2014; Accepted 19 May 2014; Published 10 July 2014

Academic Editor: Akira Iyoda

Copyright © 2014 Jessica Q. Tran et al. 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.

Abstract

Objectives. Environmental factors expose an individual to heavy metals that may stimulate cancer growth preclinically including non-small cell lung cancer (NSCLC) cells. Here, we examine the prevalence of four heavy metals present in postsurgical tissues from individuals with and without NSCLC. Materials and Methods. Thoracic tissue samples from two separate sample sets were analyzed for cadmium (Cd), arsenic (As), mercury (Hg), and lead (Pb) content. Results. In the first sample set, there was no significant measurable amount of Pb and Hg found in either NSCLC tissue or nonmalignant lung tissue samples. Cd was the most prevalent heavy metal and As was present in moderate amounts. In the second sample set, Cd was measurable across all tissue types taken from 28 NSCLC patients and significantly higher Cd was measurable in noncancer benign lung ( ). In the NSCLC samples, As was measurable in moderate amounts, while Hg and Pb amounts were negligible. Conclusion. Cd and As are present in lung tissues for patients with NSCLC. With existing preclinical evidence of their tumorigenecity, it is plausible that Cd and/or As may have an impact on NSCLC development. Additional studies examining the prevalence and association between smokers and nonsmokers are suggested.