Volume 39, Issue 11 pp. 2439-2446
Original Article - Hepatology (Clinical)

Serum Mac-2 binding protein glycosylation isomer dynamics in patients achieving sustained virologic response for hepatitis C virus

Yu-Ping Chang

Yu-Ping Chang

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

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Chen-Hua Liu

Chen-Hua Liu

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan

Department of Internal Medicine, National Taiwan University Hospital, Yun-Lin Branch, Douliou, Taiwan

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Chiuan-Bo Huang

Chiuan-Bo Huang

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

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Ji-Yuh Lee

Ji-Yuh Lee

Department of Internal Medicine, National Taiwan University Hospital, Yun-Lin Branch, Douliou, Taiwan

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Chun-Jen Liu

Chun-Jen Liu

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan

Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan

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Tung-Hung Su

Tung-Hung Su

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan

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Shang-Chin Huang

Shang-Chin Huang

Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan

Department of Internal Medicine, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan

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Tai-Chung Tseng

Tai-Chung Tseng

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan

Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan

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Pei-Jer Chen

Pei-Jer Chen

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan

Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan

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Jia-Horng Kao

Corresponding Author

Jia-Horng Kao

Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan

Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan

Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan

Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan

Correspondence

Prof Jia-Horng Kao, Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, 7 Chung-Shan South Road, Taipei 10002, Taiwan.

Email: [email protected]

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First published: 10 July 2024
Citations: 1

Yu-Ping Chang and Chen-Hua Liu contribute equally to the work.

Declaration of conflict of interest: Chen-Hua Liu: Advisory board for Sysmex; speaker's bureau for Sysmex. Jia-Horng Kao: Advisory board for Sysmex; speaker's bureau for Sysmex. All the other authors declare no competing interests.
Author contribution: Conceptualization: Yu-Ping Chang, Chen-Hua Liu, and Jia-Horng Kao. Data curation: Chen-Hua Liu. Formal analysis: Yu-Ping Chang and Chen-Hua Liu. Investigation: Yu-Ping Chang, Chen-Hua Liu, Chiuan-Bo Huang, Ji-Yuh Lee, Chun-Jen Liu, Tung-Hung Su, Shang-Chin Huang, Tai-Chung Tseng, Pei-Jer Chen, and Jia-Horng Kao. Methodology: Yu-Ping Chang and Chen-Hua Liu. Project administration: Yu-Ping Chang, Chen-Hua Liu, and Jia-Horng Kao. Resources: Yu-Ping Chang, Chen-Hua Liu, Chiuan-Bo Huang, Ji-Yuh Lee, Chun-Jen Liu, Tung-Hung Su, Shang-Chin Huang, Tai-Chung Tseng, Pei-Jer Chen, and Jia-Horng Kao. Software: Chen-Hua Liu. Supervision: Jia-Horng Kao. Validation: Yu-Ping Chang and Chen-Hua Liu. Visualization: Yu-Ping Chang and Chen-Hua Liu. Writing—original draft: Yu-Ping Chang, Chen-Hua Liu, and Jia-Horng Kao. Writing—review and editing: Yu-Ping Chang, Chen-Hua Liu, Chiuan-Bo Huang, Ji-Yuh Lee, Chun-Jen Liu, Tung-Hung Su, Shang-Chin Huang, Tai-Chung Tseng, Pei-Jer Chen, and Jia-Horng Kao.
Financial support: The study was supported by the National Taiwan University Hospital (113-S0040).

Abstract

Background and Aim

Understanding the dynamics of serum Mac-2 binding protein glycosylation isomer (M2BPGi) remains pivotal for hepatitis C virus (HCV) patients' post-sustained virologic response (SVR12) through direct-acting antivirals (DAAs).

Methods

We compared areas under receiver operating characteristic curves (AUROCs) of M2BPGi, FIB-4, and APRI and assess M2BPGi cutoff levels in predicting fibrosis stages of ≥F3 and F4 utilizing transient elastography in 638 patients. Variations in M2BPGi levels from pretreatment to SVR12 and their association with pretreatment alanine transaminase (ALT) levels and fibrosis stage were investigated.

Results

The AUROCs of M2BPGi were comparable to FIB-4 in predicting ≥F3 (0.914 vs 0.902, P = 0.48) and F4 (0.947 vs 0.915, P = 0.05) but were superior to APRI in predicting ≥F3 (0.914 vs 0.851, P = 0.001) and F4 (0.947 vs 0.857, P < 0.001). Using M2BPGi cutoff values of 2.83 and 3.98, fibrosis stages of ≥F3 and F4 were confirmed with a positive likelihood ratio ≥10. The median M2BPGi change was −0.55. Patients with ALT levels ≥5 times ULN or ≥F3 demonstrated more pronounced median decreases in M2BPGi level compared to those with ALT levels 2–5 times ULN and <2 times ULN (−0.97 vs −0.68 and −0.44; P < 0.001) or with < F3 (−1.52 vs −0.44; P < 0.001).

Conclusions

Serum M2BPGi is a reliable marker for advanced hepatic fibrosis. Following viral clearance, there is a notable M2BPGi decrease, with the extent of reduction influenced by ALT levels and fibrosis stage.

Graphical Abstract

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Data availability statement

Data for this study can be made available upon reasonable request to the corresponding author.

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