Hepatitis C Virus in Neutrophil Granulocyte Progenitor Cells

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Study Classification

OBSERVATIONAL

Study Start Date

2015-01-31

Study Completion Date

2018-12-31

Brief Summary

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Patients with hepatitis C show impaired neutrophil function. It is not known whether this is a direct of an indirect phenomenon. Using bone marrow biopsies from patients with hepatitis C it is possible to see whether neutrophil granulocyte progenitors are already infected with hepatitis C.

Detailed Description

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Neutrophil granulocytes are important components of the innate immune system and pioneers in the fight against both fungal and bacterial infections. If pathogens enter the body, they are marked as foreign by antibodies and the complement system. Afterwards receptors on the neutrophils recognize and bind on these foreign substances to make them harmless. This process is called phagocytosis. Hepatitis C virus (HCV) and neutrophils are rarely associated. The HCV belongs to the Flaviviridae. It is a single-stranded, enveloped RNA virus with a positive polarity, which cause chronic hepatitis C (CHC) in approximately 170 million people worldwide. Subsequently, such an infection leads to liver cirrhosis and carcinoma in a significant proportion of patients. The virus infects mainly hepatocytes, but extrahepatic replication has also been shown. HCV usually enters the cell through receptor-mediated endocytosis (claudin-1, cluster of differentiation (CD)81, occludin and scavenger receptor 1), before it abuses the cell's own infrastructure for the viral protein synthesis.

The aim of this study is to determine neutrophil function in chronic hepatitis C infected patients. Furthermore the investigators want to examine if neutrophils or their precursor cells are infected with HCV and if this leads to their dysfunction.

Conditions

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Chronic Hepatitis C

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* chronic hepatitis C
* Genotype 1-4

Exclusion Criteria

* acute hepatitis C

Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Vanessa Stadlbauer

Role: PRINCIPAL_INVESTIGATOR

Medical University of Graz

Locations

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Department of Internal Medicine, Medical University of Graz

Graz, , Austria

Site Status

Countries

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Austria

Other Identifiers

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HCV-KM

Identifier Type: -

Identifier Source: org_study_id