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Identification of Enolase 1 and Thrombospondin-1 as serum biomarkers in HBV hepatic fibrosis by proteomics

Bin Zhang,Zi Wang,Bin Deng,Xiao-qiong Wu,Jing Liu,Xueping Feng

Published 2013 in Proteome Science

ABSTRACT

Hepatic fibrosis is an inevitable process in the progression of chronic HBV infection to hepatic cirrhosis, but its detailed mechanism is still unknown. Clinic serum biomarkers of HBV hepatic cirrhosis were scanned by proteomic methods. We used two-dimensional electrophoresis (2-DE) and Matrix-Assisted Laser Desorption/Ionization Time of Flight Mass Spectrometry (MALDI-TOF-MS) to separate and identify the proteins which were differentially expressed in the serum of patients with hepatic fibrosis compared to HBV carriers. We identified 27 differentially expressed proteins, of which 19 proteins were up-regulated and 8 proteins were down-regulated in the serum of patients with hepatic fibrosis compared to HBV carriers. The expression level of enolase-1 (α-enolase) was decreased while the level of thrombospondin-1 (TSP-1) increased in the serum of patients with hepatic fibrosis by western blot. Enolase-1 and TSP-1 may be useful as biomarkers for the clinic diagnosis of hepatic fibrosis, but further study is necessary.

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