Immunopathogenesis of Hepatitis B Infections

Hepatitis B virus (HBV) infections are among the major health problems and leading causes of cirrhosis and hepatocellular carcinoma worldwide. Despite therapeutic advancements, chronic HBV infection is not a curable disease yet. The clinical outcome of hepatitis B infections depend upon the age at i...

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Main Author: Necla Tülek
Format: Article
Language:English
Published: Bilimsel Tip Yayinevi 2019-03-01
Series:Flora Infeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi
Subjects:
Online Access:http://www.floradergisi.org/getFileContent.aspx?op=REDPDF&file_name=2019-24-01-001-010.pdf
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author Necla Tülek
author_facet Necla Tülek
author_sort Necla Tülek
collection DOAJ
description Hepatitis B virus (HBV) infections are among the major health problems and leading causes of cirrhosis and hepatocellular carcinoma worldwide. Despite therapeutic advancements, chronic HBV infection is not a curable disease yet. The clinical outcome of hepatitis B infections depend upon the age at infection, level of HBV replication, and immune status of the host. While clinical course of the diseases ranges from subclinical hepatitis to anicteric hepatitis, icteric hepatitis, and fulminant hepatitis in acute hepatitis, manifestations range from an asymptomatic inactive state to chronic hepatitis, cirrhosis, and hepatocellular carcinoma in the chronic phase. Hepatitis B virus replicates in the hepatocyte non-cytopathically and most of the clinical syndromes associated with this infection due to immune response. Activation of the immune responses against viral infections is associated with both liver damage and virus elimination. Even though cellular immune response, especially the virus-specific effector CD8+ T cells, are central, several other components of the immune system components contribute to hepatitis B pathogenesis. In patients with chronic hepatitis B, both innate and adaptive immune responses are weak and T cell response is exhausted. Further understanding of the mechanisms of immunopathology would be beneficial in the development of new effective therapeutic strategies
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spelling doaj.art-231bb575e93e4fddbc077a7e4f2429092023-02-15T16:11:10ZengBilimsel Tip YayineviFlora Infeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi1300-932X1300-932X2019-03-0124111010.5578/flora.68087Immunopathogenesis of Hepatitis B InfectionsNecla Tülek0Department of Medical Microbiology, Faculty of Medicine, University of Atılım, Ankara, TurkeyHepatitis B virus (HBV) infections are among the major health problems and leading causes of cirrhosis and hepatocellular carcinoma worldwide. Despite therapeutic advancements, chronic HBV infection is not a curable disease yet. The clinical outcome of hepatitis B infections depend upon the age at infection, level of HBV replication, and immune status of the host. While clinical course of the diseases ranges from subclinical hepatitis to anicteric hepatitis, icteric hepatitis, and fulminant hepatitis in acute hepatitis, manifestations range from an asymptomatic inactive state to chronic hepatitis, cirrhosis, and hepatocellular carcinoma in the chronic phase. Hepatitis B virus replicates in the hepatocyte non-cytopathically and most of the clinical syndromes associated with this infection due to immune response. Activation of the immune responses against viral infections is associated with both liver damage and virus elimination. Even though cellular immune response, especially the virus-specific effector CD8+ T cells, are central, several other components of the immune system components contribute to hepatitis B pathogenesis. In patients with chronic hepatitis B, both innate and adaptive immune responses are weak and T cell response is exhausted. Further understanding of the mechanisms of immunopathology would be beneficial in the development of new effective therapeutic strategieshttp://www.floradergisi.org/getFileContent.aspx?op=REDPDF&file_name=2019-24-01-001-010.pdfHepatitis B virusInnate immunityAdaptive immunityPathogenesis
spellingShingle Necla Tülek
Immunopathogenesis of Hepatitis B Infections
Flora Infeksiyon Hastalıkları ve Klinik Mikrobiyoloji Dergisi
Hepatitis B virus
Innate immunity
Adaptive immunity
Pathogenesis
title Immunopathogenesis of Hepatitis B Infections
title_full Immunopathogenesis of Hepatitis B Infections
title_fullStr Immunopathogenesis of Hepatitis B Infections
title_full_unstemmed Immunopathogenesis of Hepatitis B Infections
title_short Immunopathogenesis of Hepatitis B Infections
title_sort immunopathogenesis of hepatitis b infections
topic Hepatitis B virus
Innate immunity
Adaptive immunity
Pathogenesis
url http://www.floradergisi.org/getFileContent.aspx?op=REDPDF&file_name=2019-24-01-001-010.pdf
work_keys_str_mv AT neclatulek immunopathogenesisofhepatitisbinfections