期刊
METABOLOMICS
卷 5, 期 3, 页码 292-301出版社
SPRINGER
DOI: 10.1007/s11306-008-0151-1
关键词
Colorectal cancer; Biopsies; HRMAS; Statistical analysis; Taurine; Myo-inositol
资金
- Region Alsace
- Oseo
- Communaute Urbaine de Strasbourg
- Conseil Departemental du Bas-Rhin
- Bruker BioSpin
- University Louis Pasteur
- University Hospitals of Strasbourg
Colorectal cancer is one of the most frequent and most lethal forms of cancer in the western world. The aim of this study is to characterize by H-1 high resolution magic angle spinning NMR spectroscopy (HRMAS) the metabolic fingerprint of both tumoral and healthy tissue samples obtained from a cohort of patients affected by primary colorectal adenocarcinoma. By analyzing HRMAS data using multivariate statistical analysis (PLS-DA), the two types of tissues could be discriminated with a high level of confidence. The identification of the metabolites at the origin of this discrimination revealed that adenocarcinomas are richer in taurine, glutamate, aspartate, and lactate whereas healthy tissues contain a higher amount of myo-inositol and beta-glucose. The statistical model resulting from the PLS-DA analysis was subsequently used to perform a blind test on tumoral and healthy colon biopsies. The results of the classification showed that the HRMAS analysis has very high sensitivity and specificity.
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