octadecadienoic-acid and Colorectal-Neoplasms

Eicosanoids as inflammatory mediators take part in the regulation of disease progression. However, the application of serum eicosanoid in disease progression identification was still uncertain.. Serum from 52 healthy volunteers, 34 enteritis patients and 55 colorectal cancer (CRC) patients were collected. Ultra-high performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) was used to analyze the change of serum eicosanoids.. Of 158 eicosanoids, we found that lower levels of anti-inflammatory eicosanoids 13-HOTrE, 9-HOTrE, DHA, 11-HETE and 12-HHT were observed in enteritis and CRC group compared with healthy group, meanwhile the content of 5-iPF2α-VI as oxidative stress mediator in enteritis and CRC group was greater than that in healthy groups. Moreover, 9-HODE, 13-HODE, 12,13-diHOME, 8-HETE and 15-HETE were dramatically decrease in CRC group compared with non-CRC group. Additionally, the change of 5-, 12- and 15-HETE content in serum sample was associated with progression from healthy to enteritis, finally to CRC. No significant difference between serum eicosanoids and the expression of CerbB-2 and Ki67 were observed.. Serum eicosanoids might be used as a possible biomarker for identifying among health, enteritis and CRC.

Topics: Aged; Biomarkers; Chromatography, High Pressure Liquid; Colorectal Neoplasms; Eicosanoids; Enteritis; Fatty Acids, Unsaturated; Female; Humans; Hydroxyeicosatetraenoic Acids; Male; Metabolic Networks and Pathways; Middle Aged; Multivariate Analysis; Oxidative Stress; Tandem Mass Spectrometry