Abstract
There is significant void in establishing validated non-invasive surrogate biomarkers of liver fibrosis/cirrhosis in chronic liver diseases (CLD). Golgi protein 73 (GP73) has been suggested as a potential serum marker for the diagnosis of hepatocellular carcinoma (HCC). However, significant background of cirrhosis could have accounted for the elevation of serum GP73 in HCC. In this study, we have taken advantage of a well-defined extensive cohort of 3044 patients with either compensated cirrhosis (n = 1247), decompensated cirrhosis (n = 841) or pre-cirrhotic CLD (n = 956) and our ability to quantify serum GP73 to define the potential of serum GP73 as a biomarker of liver cirrhosis/fibrosis in CLD. The diagnostic value of GP73 was compared with aspartate aminotransferase-to-platelet ratio index (APRI), fibrosis index based on four factors (FIB-4) and liver stiffness measurement (LSM). Immunohistochemical analysis was performed to measure hepatic GP73 expression. Receiver operating characteristic curve analysis demonstrated that serum GP73 had a good diagnostic potential for compensated cirrhosis regardless of etiology. The diagnostic performance of GP73 is better than APRI, FIB-4 and similar with LSM, especially in patients with severe inflammation, steatosis and cholestasis. Notably, in patients of autoimmune liver diseases, non-alcoholic fatty liver disease and viral hepatitis, serum GP73 also exhibited diagnostic value for advanced fibrosis as well as cirrhosis. Furthermore, there is also a gradual increase in GP73 expression with disease progression from mild fibrosis to cirrhosis. In conclusion, GP73 is an effective and reliable serological marker for the diagnosis of advanced fibrosis and prediction of appearance of cirrhosis.
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Abbreviations
- GP73:
-
Golgi protein 73
- HCC:
-
hepatocellular carcinoma
- ALT:
-
alanine aminotransferase
- AST:
-
aspartate aminotransferase
- ALP:
-
alkaline phosphatase
- GGT:
-
gamma glutamyl transpeptidase
- TBA:
-
total bile acid
- ALB:
-
albumin
- PA:
-
prealbumin
- qPCR:
-
quantitative real-time PCR
- PLT:
-
platelet count
- IQR:
-
interquartile range
- APRI:
-
AST-to-platelet ratio index
- FIB-4:
-
fibrosis index based on four factors
- LSM:
-
liver stiffness measurement
- AILDs:
-
autoimmune liver diseases
- NAFLD:
-
non-alcoholic fatty liver disease
- CLD:
-
chronic liver diseases
- HBV:
-
hepatitis B virus
- CHB:
-
chronic hepatitis B
- HBsAg:
-
hepatitis B surface antigen
- HCV:
-
hepatitis C virus
- CHC:
-
chronic hepatitis C
- H & E:
-
hematoxylin and eosin
- HRP:
-
horseradish peroxidase
- ROC:
-
receiver operating characteristic curve
- AUC:
-
the area under the receiver operating characteristic curve
- PPV:
-
positive predictive value
- NPV:
-
negative predictive value
- BMI:
-
Body Mass Index
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Funding
This work was supported by the National S&T Major Project for Infectious Diseases (No. 2017ZX10302201 and 2017ZX10202203), the project from Beijing Municipal Science and Technology Commission (Z161100000116047 and D161100002716003), the National Natural Science Foundation of China Grant (No. 81372603, 81471938, 81325002 and 81620108002), the 111 Project (B07001), Research Fund of the Capital Medical Development (Grant No. 2014-2-5032) and the project from the Beijing Municipal Administration of Hospitals Clinical Medicine Development of Special Funding Support (code XMLX201606).
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Supplementary Figure 1
The serum levels of GP73 in different patient populations. HC: healthy controls; CLC: compensated cirrhosis; DLC: decompensated cirrhosis. ***p value < 0.001 based on differences between medians with the Mann–Whitney U test. (TIFF 96 kb)
Supplementary Figure 2
Immunohistochemistry of GP73 protein in different stages of fibrotic liver tissues (×400); CHB (a), AILDs (b) and NAFLD (c). (TIFF 9559 kb)
Supplementary Figure 3
Expression of GP73 can be induced by IL-6 and STAT3C. (a) Quantitative real-time PCR detection of mRNA level of GP73 and furin in huh7 cells after stimulation with 25 ng/mL IL-6 for 2 h. (b) Quantitative real-time PCR detection of mRNA of GP73 and furin in huh7 cells after transient-transfected STAT3C after 48 h. (c) Dual-luciferase assay in huh7 indicates that STAT3C activates the GP73 promoter. The experiments were repeated at least twice. (TIFF 178 kb)
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Yao, M., Wang, L., Leung, P.S.C. et al. The Clinical Significance of GP73 in Immunologically Mediated Chronic Liver Diseases: Experimental Data and Literature Review. Clinic Rev Allerg Immunol 54, 282–294 (2018). https://doi.org/10.1007/s12016-017-8655-y
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DOI: https://doi.org/10.1007/s12016-017-8655-y