Abstract
To investigate the immunomodulatory mechanism of low relative molecular mass seleno-aminopolysaccharide, a metabolomics method based on liquid chromatography-time-of-flight mass spectrometry (LC-TOF-MS) was used to analyze the endogenous metabolites changes in the liver of Acanthopagrus schlegelii. The potential biomarkers were screened using non-targeted mass spectrometry with the XCMSplus software, and the related metabolic pathways were analyzed using MetaboAnalyst3.0 website. The results showed that the liver metabolites in the low relative molecular mass seleno-aminopolysaccharide-fed group were significantly different from those in the blank group. Also, 32 biomarkers were identified. Additionally, low relative molecular mass seleno-aminopolysaccharide could enhance the immune function of Acathopagrus schlegelii via amino acid, nucleotide, and nitrogen metabolism, aminoacyl-transfer ribonucleic acid (tRNA) biosynthesis, and other metabolic pathways. This study therefore provides a scientific basis for elucidating the immunoenhancement mechanism of low relative molecular mass seleno-aminopolysaccharide.
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