1H-NMR metabonomics analysis of sera differentiates between mammary tumor-bearing mice and healthy controls

被引:0
作者
Tracy L. Whitehead
Behjatolah Monzavi-Karbassi
Thomas Kieber-Emmons
机构
[1] National Exposure Research Laboratory,U.S. Environmental Protection Agency
[2] Ecosystems Research Division,Arkansas Cancer Research Center and Department of Pathology
[3] University of Arkansas for Medical Sciences,undefined
来源
Metabolomics | 2005年 / 1卷
关键词
breast cancer; metabonomics; H-NMR spectroscopy;
D O I
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中图分类号
学科分类号
摘要
Global analysis of 1H-NMR spectra of serum is an appealing approach for the rapid detection of cancer. To evaluate the usefulness of this method in distinguishing between mammary tumor-bearing mice and healthy controls, we conducted 1H-NMR metabonomic analyses on serum samples obtained from the following: 10 mice inoculated with a highly-metastatic mammary carcinoma cell line, 10 mice inoculated with a “normally” metastatic mammary carcinoma cell line, and 10 healthy controls. Following standard spectral processing and subsequent data reduction, we applied unsupervised Principal Component Analysis (PCA) to determine if unique metabolic fingerprints for different categories of metastatic breast cancer in serum exist. The PCA method correctly separated sera of tumor-bearing mice from that of normal healthy controls, as shown using the scores plot which indicated that sera classes from tumor-bearing mice did not share multivariate space with that from healthy controls. In addition, this technique was capable of distinguishing between classes of varying metastatic ability in this system. Metabolites apparently responsible for separation between diseased and healthy mice include lactate, taurine, choline, and sugar moieties. Results of this study suggest that 1H-NMR spectra of mouse serum analyzed using PCA statistical methods indicate separation of tumor-bearing mice from healthy normal controls, justifying further study of the use of 1H-NMR metabonomics for cancer detection using serum.
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页码:269 / 278
页数:9
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