Study of Metabolic Profiling Changes in Colorectal Cancer Tissues Using 1D 1H HR-MAS NMR Spectroscopy

Bulletin of the Korean chemical society

Weon Young Chang¹  Suhkmann Kim¹  Young Hee Maeng¹  Sangmi Lee¹  Siwon Kim¹  Jin Won Hyun¹ 

关键词: HR-MAS NMR;    Colorectal cancer;    Metabolomics;    Multivariate statistical analysis;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Metabolomics is a field that studies systematic dynamics and secretion of metabolites from cells to understand biological pathways based on metabolite changes. The metabolic profiling of intact human colorectal tissues was performed using high-resolution magic angle spinning (HR-MAS) NMR spectroscopy, which was unnecessary to extract metabolites from tissues. We used two different groups of samples, which were defined as normal and cancer, from 9 patients with colorectal cancer and investigated the samples in NMR experiments with a water suppression pulse sequence. We applied target profiling and multivariative statistical analysis to the analyzed 1D NMR spectra to identify the metabolites and discriminate between normal and cancer tissues. Cancer tissue showed higher levels of arginine, betaine, glutamate, lysine, taurine and lower levels of glutamine, hypoxanthine, isoleucine, lactate, methionine, pyruvate, tyrosine relative to normal tissue. In the OPLS-DA (orthogonal partial least square discriminant analysis), the score plot showed good separation between the normal and cancer groups. These results suggest that metabolic profiling of colorectal cancer could provide new biomarkers.

【 授权许可】

Unknown