Carcinogenesis, Teratogenesis & Mutagenesis ›› 2024, Vol. 36 ›› Issue (1): 21-28,34.doi: 10.3969/j.issn.1004-616x.2024.01.004

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Characteristics of serum lipidomics among Kazakhs with esophageal squamous cell carcinomas based on the UPLC-MS/MS method

LIU Ruixue, LI Desheng, ZHANG Liwei   

  1. Department of Thoracic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, Xinjiang, China
  • Received:2023-06-28 Revised:2023-10-27 Online:2024-02-19 Published:2024-02-19

Abstract: OBJECTIVE: To explore characteristics of lipid metabolism in Xinjiang Kazakh patients with esophageal squamous cell carcinoma(ESCC) based on serum lipidomics. METHODS: From January 2018 to December 2020, 30 Kazakh ESCC patients in the thoracic surgery department of the First Affiliated Hospital of Xinjiang Medical University(ESCC group) and 30 Kazakh healthy people who underwent physical examination in the Health Management Center of Xinjiang Medical University(control group) were selected.Ultra-high performance liquid chromatography-mass spectrometry(UPLC-MS/MS) was used to analyze the targeted quantitative lipidomics of serum in the two groups. Absolute lipid quantification was performed according to relationships between the peak areas and the actual concentrations of internal standard(IS) of similar lipids. Multivariate statistical analyses were performed using the lipid data. RESULTS: A total of 13lipids were screened out in 60 serum samples, among which triacylglycerol(TAG), phosphatidyl choline(PC)and phosphatidyl ethanolamine(PE) were the most abundant. Lysophosphatidylcholine(LPC) was the most different lipid in serum between the two groups. Compared with the control group, the levels of TAG and LPC in the serum of Kazakh ESCC patients were up-regulated, while PE was down-regulated. According to the orthogonal partial least squares-discriminant analysis(OPLS-DA), the threshold(P<0.05 and fold change>2 or <0.5), a total of 77 differential lipid metabolites were screened, among which 34 were up-regulated and 43 were down-regulated in ESCC group compared with control group. Including triglycerides, diglycerides, lysophosphatidyl choline, phosphatidyl ethanolamine and free fatty acids. CONCLUSION: The contents and trends of different lipids in the patients were different. The contents of triglyceride, phosphatidyl choline and ceramide in serum of patients were up-regulated, while the contents of lysatidyl choline and diglyceride were overall down-regulated. The contents of triglyceride and lysophosphatidyl choline in the serum of the Kazakh patients were up-regulated, while phosphatidyl ethanolamine was down-regulated, and the chain length and unsaturation of lysophosphatidyl choline, phosphatidyl ethanolamine and phosphatidyl choline were down-regulated in the serum of patients. Therefore, the analysis of changes in the distribution of these lipids and the screening of new targets are helpful to clarify mecahnisms for occurrence and development of ESCC patients of Xinjiang Kazak nationality.

Key words: esophageal squamous cell carcinoma, Kazakhs, lipidomics, lipid metabolites, differential expression

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