Abstract:
BACKGROUND:Although colorectal cancer (CRC) is one of the most common causes of cancer mortality, early-stage detection improves survival rates dramatically. Because cancer impacts important metabolic pathways, the alteration of metabolite levels as a potential biomarker of early-stage cancer has been the focus of many studies. Here, we used CE-TOFMS, a novel and promising method with small injection volume and high resolution, to separate and detect ionic compounds based on the different migration rates of charged metabolites in order to detect metabolic biomarkers in patients with CRC. METHODS:A total of 56 patients with CRC (n = 14 each of Stages I-IV), 60 healthy controls, and 59 patients with colonic adenoma were included in this study. Metabolome analysis was conducted by CE-TOFMS on serum samples of patients and controls using the Advanced Scan package (Human Metabolome Technologies). RESULTS:We obtained 334 metabolites in the serum, of which 139 were identified as known substances. Among these 139 known metabolites, 16 were correlated with CRC stage by upregulation and 44 by downregulation, with benzoic acid (r = -0.649, t = 11.653, p = 6.07599E-24), octanoic acid (r = 0.557, t = 9.183, p = 7.9557E-17), decanoic acid (r = 0.539, t = 8.749, p = 1.24352E-15), and histidine (r = -0.513, t = 8.194, p = 3.90224E-14) exhibiting significant correlation. CONCLUSIONS:To the best of our knowledge, this is the first report to determine the correlation between serum metabolites and CRC stage using CE-TOFMS. Our results show that benzoic acid exhibited excellent diagnostic power and could potentially serve as a novel disease biomarker for CRC diagnosis.
journal_name
J Gastroenteroljournal_title
Journal of gastroenterologyauthors
Uchiyama K,Yagi N,Mizushima K,Higashimura Y,Hirai Y,Okayama T,Yoshida N,Katada K,Kamada K,Handa O,Ishikawa T,Takagi T,Konishi H,Kuriu Y,Nakanishi M,Otsuji E,Itoh Y,Naito Ydoi
10.1007/s00535-016-1261-6subject
Has Abstractpub_date
2017-06-01 00:00:00pages
677-694issue
6eissn
0944-1174issn
1435-5922pii
10.1007/s00535-016-1261-6journal_volume
52pub_type
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更新日期:2009-01-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:2013-04-01 00:00:00
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pub_type: 杂志文章
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journal_title:Journal of gastroenterology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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pub_type: 杂志文章,评审
doi:10.1007/BF02349649
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pub_type: 杂志文章
doi:10.1007/s005350200004
更新日期:2002-01-01 00:00:00
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更新日期:1998-10-01 00:00:00