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Decoding HBV-specific adaptive immunity: from natural clearance to cure.

Robert Thimme1,2, Maike Hofmann3,2, Antonio Bertoletti4

  • 1Department of Medicine II, Medical Center-University of Freiburg, Freiburg, BW, Germany robert.thimme@uniklinik-freiburg.de nina@duke-nus.edu.sg.

Gut
|November 28, 2025
PubMed
Summary
This summary is machine-generated.

Chronic hepatitis B virus (HBV) infection needs better treatments. Enhancing adaptive immunity is key for a functional cure, but immunological challenges remain a hurdle for developing effective immune-based therapies.

Keywords:
CHRONIC HEPATITISCHRONIC VIRAL HEPATITISIMMUNE RESPONSEIMMUNOLOGY

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Area of Science:

  • Immunology
  • Hepatology
  • Virology

Background:

  • Chronic hepatitis B virus (HBV) infection is a significant global health issue.
  • Current therapies suppress HBV replication but rarely achieve a functional cure.
  • Adaptive immunity is crucial for viral clearance but is impaired in chronic HBV.

Purpose of the Study:

  • To review current knowledge on immune correlates of HBV clearance and persistence.
  • To discuss immunological challenges in developing immune-based HBV cure strategies.
  • To outline future research directions for advancing HBV cure.

Main Methods:

  • Literature review of preclinical and clinical studies on immune-based HBV therapies.
  • Synthesis of data on adaptive immune responses in chronic HBV infection.
  • Analysis of challenges and future directions for therapeutic vaccines, immune checkpoint inhibitors, and T cell-based therapies.

Main Results:

  • Adaptive immunity enhancement is a promising strategy for HBV functional cure.
  • Limited efficacy of current immune-based strategies highlights significant immunological challenges.
  • Understanding immune correlates is essential for therapeutic development.

Conclusions:

  • Overcoming immunological hurdles is critical for advancing immune-based HBV cure strategies.
  • Further research into viral clearance correlates and immune modulation is needed.
  • A functional cure for chronic HBV requires a deeper understanding of adaptive immunity.