Aim: The present study aimed to evaluate the changes in the serum N-glycome profiles in chronic hepatitis B (CHB) patients and to assess the role of N-glycome-derived markers in the noninvasive diagnosis of liver fibrosis.
Materials And Methods: After liver biopsy for pathological grading and staging, 128 CHB patients underwent serum N-glycomic analysis using DNA sequencer-assisted fluorophore-assisted carbohydrate electrophoresis (DSA-FACE) and sensitive markers were screened.
Results: Peaks 1, 2, 8 and 10 in the N-glycome profiles could, to some extents, distinguish liver fibrosis at different stages. In addition, the N-glycome-derived marker log(peak2/peak8) possessed the highest diagnostic accuracy. The areas under the receiver operating characteristic (AUROCs) curves of the log(peak2/peak8) were 0.675, 0.736 and 0.754 in the diagnosis of significant fibrosis, advanced fibrosis and early cirrhosis, respectively. In combination with some marker panels (SLFG, S index, Fibrometer, Hui, Forns, APRI and Hepascore), it showed the best diagnostic potency in distinguishing significant fibrosis (SLFG + log[peak2/peak8], AUROC = 0.813) from advanced fibrosis (SLFG + log[peak2/peak8], AUROC = 0.899) and a better diagnostic potency in the identification of early cirrhosis (S index + log[peak2/peak8], AUROC = 0.903, lower than Hui model [AUROC = 0.927]) in the validation cohort.
Conclusions: N-glycomic changes are present in the serum of CHB patients with liver fibrosis, and N-glycan profiling is a noninvasive and effective tool to assess the liver fibrosis, especially in combination with serum marker panels.
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