The goal of the proposed research is to determine the molecular weights and structures of the aromatic carcinogen-nucleoside adducts that are formed in human placenta and lung tissue as a result of cigarette smoking with matrix-assisted laser desorption ionization (MALDI) and time-of-flight mass spectrometry (TOFMS). Knowledge of such structural features will enable us to determine the aromatic amines or other polyaromatic hydrocarbons (PAH) in cigarette smoke that are most likely to bind to DNA and initiate tumor formation. The structures of the unknown aromatic DNA adducts isolated from human tissue will be inferred comparing the post-source-decay (PSD) product ion spectra if DNA adducts synthesized in vitro.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR000954-24
Application #
6336757
Study Section
Project Start
2000-08-01
Project End
2001-07-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
24
Fiscal Year
2000
Total Cost
$2,243
Indirect Cost
Name
Washington University
Department
Type
DUNS #
062761671
City
Saint Louis
State
MO
Country
United States
Zip Code
63130
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