Table of Contents
Lung Cancer International
Volume 2017 (2017), Article ID 6914976, 8 pages
Research Article

Alterations in Gene Expression of Components of the Renin-Angiotensin System and Its Related Enzymes in Lung Cancer

1Cooper City High School, Cooper City, FL, USA
2College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, USA

Correspondence should be addressed to Malav Trivedi and Robert C. Speth

Received 19 March 2017; Accepted 5 June 2017; Published 16 July 2017

Academic Editor: Giovanni Luca Ceresoli

Copyright © 2017 Benjamin Goldstein 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.


Objectives. The study assessed the existence and significance of associations between the expression of fifteen renin-angiotensin system component genes and lung adenocarcinoma. Materials and Methods. NCBI’s built-in statistical tool, GEO2R, was used to calculate Student’s -tests for the associations found in a DNA expression study of adenocarcinoma and matched healthy lung tissue samples. The raw data was processed with GeneSpring™ and then used to generate figures with and without Sidak’s multiple comparison correction. Results. Ten genes were found to be significantly associated with adenocarcinoma. Seven of these associations remained statistically significant after correction for multiple comparisons. Notably, AGTR2, which encodes the AT2 angiotensin II receptor subtype, was significantly underexpressed in adenocarcinoma tissue (). AGTR1, ACE, ENPEP, MME, and PRCP, which encode the AT1 angiotensin II receptor, angiotensin-converting enzyme, aminopeptidase N, neprilysin, and prolylcarboxypeptidase, respectively, were also underexpressed. AGT, which encodes angiotensinogen, the angiotensin peptide precursor, was overexpressed in adenocarcinoma tissue. Conclusion. The results suggest an association between the expression of the genes for renin-angiotensin system-related proteins and adenocarcinoma. While further research is necessary to conclusively demonstrate a link between the renin-angiotensin system and lung cancers, the results suggest that the renin-angiotensin system plays a role in the pathology of adenocarcinoma.