Metabolite signatures in hydrophilic extracts of mouse lungs exposed to cigarette smoke revealed by ¹H NMR metabolomics investigation

Journal Article · Tue May 12 00:00:00 EDT 2015 · Metabolomics

DOI:https://doi.org/10.4172/2153-0769.1000143· OSTI ID:1208733

Hu, Jian Z. ^[1]; Wang, Xuan ^[2]; Feng, Ju ^[1]; Webb-Robertson, Bobbie-Jo M. ^[1]; Waters, Katrina M. ^[1]; Tilton, Susan C. ^[1]; Pounds, Joel G. ^[1]; Corley, Richard A. ^[1]; Liu, Maili ^[3]; Hu, Mary Y. ^[1]

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1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Chinese Academy of Sciences, Wuhan (China)
3. Chinese Academy of Sciences, Wuhan (China)

Herein, ¹H-NMR metabolomics are carried out to evaluate the changes of metabolites in lungs of mice exposed to cigarette smoke. It is found that the concentrations of adenosine derivatives (i.e. ATP, ADP and AMP), inosine and uridine are significantly fluctuated in the lungs of mice exposed to cigarette smoke compared with those of controls regardless the mouse is obese or regular weight. The decreased ATP, ADP, AMP and elevated inosine predict that the deaminases in charge of adenosine derivatives to inosine derivatives conversion are altered in lungs of mice exposed to cigarette smoke. Transcriptional analysis reveals that the concentrations of adenosine monophosphate deaminase and adenosine deaminase are different in the lungs of mice exposed to cigarette smoke, confirming the prediction from metabolomics studies. We also found, for the first time, that the ratio of glycerophosphocholine (GPC) to phosphocholine (PC) is significantly increased in the lungs of obese mice compared with regular weight mice. The ratio of GPC/PC is further elevated in the lungs of obese group by cigarette smoke exposure. Since GPC/PC ratio is a known biomarker for cancer, these results may suggest that obese group is more susceptible to lung cancer when exposed to cigarette smoke.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Biological and Environmental Research (BER)
• Grant/Contract Number: AC05-76RL01830
• OSTI ID: 1208733
• Report Number(s): PNNL-SA-102290; 47841; 400412000
• Journal Information: Metabolomics, Vol. 05, Issue 02; ISSN 2153-0769
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
Environmental Molecular Sciences Laboratory: H-NMR metabolomics
mouse lungs
cigarette smoke
PCA
OPLS
obesity