Abstract
Aim
Wisteria floribunda agglutinin positive (WFA+) Mac-2-binding protein (M2BPGi) is a noninvasive glyco-marker for liver fibrosis. This study evaluated the utility of serial measurement of serum M2BPGi and total M2BP as a predictor of fibrosis and the development of hepatocellular carcinoma (HCC).
Methods
This study included 119 patients with chronic hepatitis C (CHC). Of these patients, 97 were treated with IFN-based therapy and 22 were treated with daclatasvir and asunaprevir. Serum M2BPGi values were measured prior to, at the end of, and at 24 weeks after the completion of treatment. As subanalysis, serum total M2BP levels were measured in patients treated with pegylated-interferon and ribavirin.
Results
In patients treated with IFN-based therapy, M2BPGi levels were elevated at the end of treatment but decreased afterwards. In contrast, M2BPGi levels in patients treated with IFN-free therapy decreased immediately after starting the treatment without transient elevation. Though pre-treatment M2BPGi levels significantly correlated with fibrosis in both patients with a sustained virological response (SVR) and non-SVR, post-treatment M2BPGi levels decreased regardless of the degree of fibrosis in patients with SVR. In multivariate analysis, non-SVR and HCC development were independent factors associated with M2BPGi level ≥2.2. In patients treated with pegylated-interferon and ribavirin, total M2BP levels were positively correlated with fibrosis and HCC development.
Conclusion
Real-time monitoring of the serum M2BPGi level after antiviral therapy for CHC patients could be a helpful screening tool for assessing the risk of HCC. M2BP and its glycan structure could be associated together with hepatocarcinogenesis.
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Abbreviations
- HCV:
-
Hepatitis C virus
- WFA:
-
Wisteria floribunda agglutinin
- M2BP:
-
Mac-2-binding protein
- M2BPGi:
-
Mac-2-binding protein glycosylation isomer
- HCC:
-
Hepatocellular carcinoma
- CHC:
-
Chronic hepatitis C
- PEG-IFN:
-
Pegylated-interferon
- RBV:
-
Ribavirin
- SVR:
-
Sustained virological response
- COI:
-
Cut off index
- DAA:
-
Direct-acting antiviral agent
- ALT:
-
Alanine aminotransferase
- AST:
-
Aspartate aminotransferase
- AFP:
-
α-Fetoprotein
- US:
-
Ultrasonography
- CT:
-
Computed tomography
- MRI:
-
Magnetic resonance imaging
- PC:
-
Positive control
- NC:
-
Negative control
- PPV:
-
Positive predictive value
- NPV:
-
Negative predictive value
- SMV:
-
Simeprevir
- TVR:
-
Telaprevir
- ASV:
-
Asunaprevir
- DCV:
-
Daclatasvir
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Acknowledgements
This study is based on the participation of six multicenter hospitals (Tokyo Medical and Dental University Hospital, Kashiwa City Hospital, Showa General Hospital, Toride Kyodo General Hospital, Mishima General Hospital).
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Dr. Asahina and Dr. Kakinuma belong to donation-funded department funded by Chugai Pharmaceutical Co. Ltd., Toray Industries Inc., Bristol-Myers Squibb, Dainippon Sumitomo Pharma Co. Ltd., and Merck Sharp & Dohme.
Financial support
This study was supported by grants for research received from Sysmex Corporation, grants from the Ministry of Education, Culture, Sports, Science and Technology-Japan, the Japan Society for the Promotion of Science, Japan Agency for Medical Research and Development, the Japan Health Sciences Foundation, the Miyakawa Memorial Research Foundation, and the National Institute of Biomedical Innovation.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent
Written informed consent was obtained from all patients. The Ethical Committee of Tokyo Medical and Dental University approved this study, which was conducted in accordance with the Declaration of Helsinki (Confirmation No. 1863).
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Nagata, H., Nakagawa, M., Nishimura-Sakurai, Y. et al. Serial measurement of Wisteria floribunda agglutinin positive Mac-2-binding protein is useful for predicting liver fibrosis and the development of hepatocellular carcinoma in chronic hepatitis C patients treated with IFN-based and IFN-free therapy. Hepatol Int 10, 956–964 (2016). https://doi.org/10.1007/s12072-016-9754-1
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DOI: https://doi.org/10.1007/s12072-016-9754-1