Hepatitis C
immunology
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Researchers involved
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M. Claassen (Mark),
PhD student
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B.E. Verstrepen (Babs),
PhD student
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Hepatitis C Immunology, Rotterdam Liver Unit
The hepatitis C virus (HCV) is an example of a human viral pathogen that is
difficult to control by the immune system. As a result of this, about 80% of
individuals exposed to HCV become chronically infected. The long-term consequences
of chronic HCV infections can be severe, since patients are at increased risk
for developing liver fibrosis, cirrhosis and/or hepatocellular carcinoma. The
research in our laboratory is aimed at understanding why the immune response
to HCV is insufficient to clear the virus in infected patients, and if the unique
micro-environment of the liver contributes to this. In addition, since current
anti-viral therapy of chronic HCV patients is only partly effective, studies
are being conducted to determine the factors involved in the response to therapy.
This knowledge is important and will be used to improve therapeutic strategies
to treat chronic HCV patients. Our studies combine clinical and fundamental
research.
The fundamental immunological studies are directed by dr. André Boonstra,
while clinical expertise is provided by prof.dr. Harry Janssen and dr. Rob de
Knegt, both experts in the field of viral hepatitis.
Research projects:
- Regulation of HCV-specific T cell responses in chronic HCV patients
- Studies on innate immunity relevant during HCV infection
- The role of intrahepatic immunity in the development of persistence
- Mechanisms of action of current and novel therapies for HCV, and identification
of the factors determining the response to treatment and disease progression
(basic immunological studies, as well as transcriptomics and GWAS)
For further information see also www.hepatitispoli.nl
Key publications
- Claassen MAA, de Knegt RJ, Turgut D, Tilanus HW, Janssen HLA, Boonstra
A.
Abundant numbers of regulatory T cells localize to the liver of chronic hepatitis
C infected patients and limit the extent of fibrosis.
J Hepatol. 2010. 52(3):315-21
- Boonstra A, van der Laan LJW, Vanwolleghem T, Janssen HLA.
Experimental models for hepatitis C viral infection.
Hepatology. 2009. 50:
1646-1655.
- Liu B, Woltman AM, Janssen HLA, Boonstra A.
Modulation of dendritic cell function by persistent viruses.
J Leukoc Biol. 2009.
85: 205-214.
- Boonstra A, Asselin-Paturel C, Gilliet M, Crain C, Trinchieri G,
Liu Y-J, O'Garra A.
Flexibility of mouse classical and plasmacytoid-derived dendritic cells in
directing T helper type 1 and 2 cell development: dependency on antigen dose
and differential Toll-like receptor ligation.
J Exp Med. 2003. 197:
101-109.
- Asselin-Paturel C, Boonstra A, Dalod M, Durand I, Yessaad N, Dezutter-Dambuyant
C, Vicari A, O'Garra A, Biron C, Brière F, Trinchieri G.
The major type I interferon producing cells in the mouse are immature antigen-presenting
cells exhibiting plasmacytoid morphology.
Nature Immunol. 2001.
2: 1144-1150.
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