Immune drivers of HBsAg loss in HBeAg-negative CHB patients after stopping nucleotide analog and administration of Peg-IFN.
Journal
Hepatology communications
ISSN: 2471-254X
Titre abrégé: Hepatol Commun
Pays: United States
ID NLM: 101695860
Informations de publication
Date de publication:
01 05 2023
01 05 2023
Historique:
received:
03
08
2022
accepted:
12
12
2022
medline:
1
5
2023
pubmed:
27
4
2023
entrez:
27
4
2023
Statut:
epublish
Résumé
The stoppage of nucleoside analog (NA) can lead to immune flare and loss of HBsAg in a proportion of HBeAg-negative chronic hepatitis B (CHB) patients. HBsAg loss could be improved by instituting Peg-Interferon therapy in those who show an immune flare after the stoppage of NA. We investigated the immune drivers of HBsAg loss in NA-treated HBeAg-negative CHB patients after stopping NAs and administration of Peg-IFN-α2b therapy. Fifty-five NA-treated eAg-ve, HBV DNA not detected CHB patients were subjected to stopping NA therapy. Twenty-two (40%) patients relapsed (REL-CHBV) within 6 months (HBV DNA ≥2000 IU/mL, ALT ≥2XULN) and were started on Peg-IFN-α2b (1.5 mcg/kg) for 48 weeks (PEG-CHBV). Cytokine levels, immune responses, and T-cell functionality were assessed. Only 22 (40%) of 55 patients clinically relapsed, of which 6 (27%) cleared HBsAg. None of the 33 (60%) nonrelapsers cleared HBsAg. REL-CHBV patients had significantly increased IL-6 (p=0.035), IFN-γ (p=0.049), Th1/17 (p=0.005), CD4 effector memory (EM) (p=0.01), Tfh1/17 (p=0.005), and mature B cells (p=0.04) compared with CHBV. Six months after Peg-IFN therapy, immune resetting with a significant increase in CXCL10 (p=0.042), CD8 (p=0.01), CD19 (p=0.001), and mature B cells (p=0.001) was observed. HBV-specific T-cell functionality showed increased Tfh-secreting IFN-γ (p=0.001), IL-21 (p=0.001), and TNF-α (p=0.005) in relapsers and IFN-γ-secreting CD4 T cell (p=0.03) in PEG-CHBV. Stopping NA therapy induces flare in about 40% of HBeAg-negative patients. Peg-IFN therapy given to such patients causes immune restoration with HBsAg loss in one fourth of them.
Sections du résumé
BACKGROUND
The stoppage of nucleoside analog (NA) can lead to immune flare and loss of HBsAg in a proportion of HBeAg-negative chronic hepatitis B (CHB) patients. HBsAg loss could be improved by instituting Peg-Interferon therapy in those who show an immune flare after the stoppage of NA. We investigated the immune drivers of HBsAg loss in NA-treated HBeAg-negative CHB patients after stopping NAs and administration of Peg-IFN-α2b therapy.
METHODS
Fifty-five NA-treated eAg-ve, HBV DNA not detected CHB patients were subjected to stopping NA therapy. Twenty-two (40%) patients relapsed (REL-CHBV) within 6 months (HBV DNA ≥2000 IU/mL, ALT ≥2XULN) and were started on Peg-IFN-α2b (1.5 mcg/kg) for 48 weeks (PEG-CHBV). Cytokine levels, immune responses, and T-cell functionality were assessed.
RESULTS
Only 22 (40%) of 55 patients clinically relapsed, of which 6 (27%) cleared HBsAg. None of the 33 (60%) nonrelapsers cleared HBsAg. REL-CHBV patients had significantly increased IL-6 (p=0.035), IFN-γ (p=0.049), Th1/17 (p=0.005), CD4 effector memory (EM) (p=0.01), Tfh1/17 (p=0.005), and mature B cells (p=0.04) compared with CHBV. Six months after Peg-IFN therapy, immune resetting with a significant increase in CXCL10 (p=0.042), CD8 (p=0.01), CD19 (p=0.001), and mature B cells (p=0.001) was observed. HBV-specific T-cell functionality showed increased Tfh-secreting IFN-γ (p=0.001), IL-21 (p=0.001), and TNF-α (p=0.005) in relapsers and IFN-γ-secreting CD4 T cell (p=0.03) in PEG-CHBV.
CONCLUSIONS
Stopping NA therapy induces flare in about 40% of HBeAg-negative patients. Peg-IFN therapy given to such patients causes immune restoration with HBsAg loss in one fourth of them.
Identifiants
pubmed: 37102765
doi: 10.1097/HC9.0000000000000098
pii: 02009842-202305010-00017
pmc: PMC10145869
pii:
doi:
Substances chimiques
Hepatitis B Surface Antigens
0
Antiviral Agents
0
Hepatitis B e Antigens
0
DNA, Viral
0
Interferon-alpha
0
Nucleosides
0
Nucleotides
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Association for the Study of Liver Diseases.
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