Title:Metabolome Profiling of Malignant Ascites Identifies Candidate
Metabolic Biomarkers of Hepatocellular Carcinoma
Volume: 31
Issue: 13
Author(s): Weijia Wang, Yue Wu, Qinsheng Zhang*Peilin Cui*
Affiliation:
- Department of Hepatobiliary Spleen and Gastroenterology, Henan Provincial Hospital
of Traditional Chinese Medicine, Henan University of Chinese Medicine, Zhengzhou, China
- Department of International Medical Services (IMS), Beijing Tiantan Hospital of Capital Medical University, Beijing, China
Keywords:
Malignant ascites, UPLC-MS/MS, metabolism, hepatocellular carcinoma, biomarkers, tumor.
Abstract:
Background: Malignant ascites is one of the severe complications of hepatocellular
carcinoma, which can be regarded as a unique tumor microenvironment of hepatocellular
carcinoma. The identification of novel biomarkers in malignant ascites could
be crucial to differentiate patients with hepatocellular carcinoma and cirrhotic ascites.
Objective: The study aimed to distinguish the metabolomics of malignant ascites in patients
with hepatocellular carcinoma from that of non-malignant ascites (cirrhotic
ascites).
Methods: Liquid chromatography-mass spectrometry was performed to analyze the differentially
distributed biomarkers in patients with malignant ascites and hepatocellular
carcinoma (n = 39), as well as in patients with cirrhotic ascites, which were taken as controls
(n = 36).
Results: A total of 20 differential metabolites associated with malignant ascites were
identified, of which 8 metabolites were upregulated and 12 metabolites were downregulated
(ratio < 0.5 or > 1.5, respectively). Moreover, pathway and enrichment analyses revealed
nitrogen metabolism, urea cycle, phenylalanine, and tyrosine metabolism to be implicated
in the formation of malignant ascites in patients with hepatocellular carcinoma.
Conclusion: Our results suggest that the key factors associated with pathways, such as
arachidonic acid, phenylalanine, and glutamic acid pathways, are potential ascitic fluidbased
biomarkers for differentiating hepatocellular carcinoma with cirrhosis ascites; the
results also provide a clinical pathophysiological interpretation of biomarkers and
metabolic pathways relevant to disease status.