Immune Tolerant Chronic Hepatitis B: The Unrecognized RisksReport as inadecuate


Immune Tolerant Chronic Hepatitis B: The Unrecognized Risks


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1

Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, QMUL, London E1 2AT, UK

2

Fox Chase Cancer Center, Philadelphia, PA 19111, USA

3

Emerging Infectious Diseases Program, Duke-NUS Graduate Medical School, Singapore





*

Author to whom correspondence should be addressed.



Academic Editors: Ulrike Protzer and Michael Nassal

Abstract Chronic infection with hepatitis B virus HBV progresses through multiple phases, including immune tolerant, immune active, immune control, and, in a subset of patients who achieve immune control, reactivation. The first, the immune tolerant phase, is considered to be prolonged in duration but essentially benign in nature, lacking long-term consequences, and thus not recommended for antiviral therapy. This review challenges the notion that the immune tolerant phase is truly benign and considers the possibility that events during this phase may contribute significantly to cirrhosis, hepatocellular carcinoma HCC, and the premature death of 25% of HBV carriers worldwide. Thus, earlier treatment than recommended by current guidelines should be considered. Low therapeutic coverage exacerbated by restrictive treatment guidelines may facilitate disease progression in many patients but also increase the risk of neonatal and horizontal transmission from untreated mothers to their children. While a prophylactic vaccine exists, there are many areas worldwide where the treatment of adults and the delivery of an effective vaccination course to newborns present difficult challenges. View Full-Text

Keywords: hepatitis B; immune tolerant; hepatocellular carcinoma; cirrhosis; vaccine; inflammation hepatitis B; immune tolerant; hepatocellular carcinoma; cirrhosis; vaccine; inflammation





Author: Patrick T. F. Kennedy 1,* , Samuel Litwin 2, Grace E. Dolman 1, Antonio Bertoletti 3 and William S. Mason 2

Source: http://mdpi.com/



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