Differentially Expressed Proteins in Chronic Active Hepatitis, Cirrhosis, and HCC Related to HCV Infection in Comparison With HBV Infection: A proteomics study.
BACKGROUND
Hepatocellular carcinoma is a highly progressive cancer in the case of late diagnosis which is frequently associated with HBV and HCV viral infections.


OBJECTIVE
To identify differentially expressed serum proteins among three main stages of HCV infection and healthy individuals, and their comparisons with sera from patients with the same stage of HBV infection.


METHODS
Two-dimensional polyacrylamide gel electrophoresis combined with liquid chromatography-tandem mass spectrometry was performed on 47 sera from healthy volunteers, those with chronic active hepatitis, cirrhosis and HCC patients associated with HBV and HCV infections.


RESULTS
Among these, 62 spots were differentially expressed (≥ 1.5 fold; P < 0.05), of which 42 spots that corresponded to 15 proteins were identified by liquid chromatography-tandem mass spectrometry. CD5-like antigen (CD5L) was differentially expressed between cirrhosis and HCC patients with HCV infection. Leucine-rich α2-glycoprotein (LRG) and haptoglobin (HP) α2 isoforms differed in the HCC that was associated with either HCV or HBV infections.


CONCLUSIONS
CD5L might be a useful biomarker for early diagnosis of HCC in HCV cirrhotic patients. LRG and HP α2 isoforms could be potential markers for distinguishing viral HCC. Our results also further support the presence of varying molecules involved in hepatocarcinogenesis in HBV when compared with HCV infection.
Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, IR Iran ; Department of Bacteriology and Virology, Shiraz University of Medical Sciences, Shiraz, IR Iran ; Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan.
Jamal
J
Sarvari
Zahra
Z
Mojtahedi
Seyed Ali Reza
SA
Taghavi
Yasuhiro
Y
Kuramitsu
Mahmoud
M
Shamsi Shahrabadi
Abbas
A
Ghaderi
Kazuyuki
K
Nakamura
Cirrhosis; Hepatitis B Virus; Hepatitis C Virus; Hepatocellular Carcinoma