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Related Concept Videos

Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Inhibitors Of Virion Release01:25

Inhibitors Of Virion Release

Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
Cytomegalovirus Disease01:27

Cytomegalovirus Disease

Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Coronavirus01:29

Coronavirus

Coronaviruses, including the severe acute respiratory syndrome coronavirus (SARS-CoV), are enveloped viruses characterized by their single-stranded, positive-sense RNA genome and helical nucleocapsid structure. The hallmark of these viruses is their club-shaped spike (S) glycoproteins that protrude from the viral envelope, facilitating attachment to host cells. Typically, coronaviruses infect the upper respiratory tract, often causing mild or asymptomatic disease. However, certain strains like...

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Updated: Jul 3, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
13:04

A Protocol for Analyzing Hepatitis C Virus Replication

Published on: June 26, 2014

Hepatitis C virus entry and neutralization.

Zania Stamataki1, Joe Grove, Peter Balfe

  • 1Division of Immunity and Infection, Institute for Biomedical Research, University of Birmingham, Edgbaston, UK.

Clinics in Liver Disease
|July 16, 2008
PubMed
Summary
This summary is machine-generated.

Hepatitis C virus (HCV) entry and neutralization by antibodies are linked. Understanding HCV entry mechanisms and neutralizing antibodies (nAbs) is key to controlling viral replication and developing new therapies.

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A Competent Hepatocyte Model Examining Hepatitis B Virus Entry through Sodium Taurocholate Cotransporting Polypeptide as a Therapeutic Target
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Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors
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Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors

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Related Experiment Videos

Last Updated: Jul 3, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
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A Protocol for Analyzing Hepatitis C Virus Replication

Published on: June 26, 2014

A Competent Hepatocyte Model Examining Hepatitis B Virus Entry through Sodium Taurocholate Cotransporting Polypeptide as a Therapeutic Target
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A Competent Hepatocyte Model Examining Hepatitis B Virus Entry through Sodium Taurocholate Cotransporting Polypeptide as a Therapeutic Target

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Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors
16:49

Two Methods of Heterokaryon Formation to Discover HCV Restriction Factors

Published on: July 16, 2012

Area of Science:

  • Virology
  • Immunology
  • Cell Biology

Background:

  • Hepatitis C virus (HCV) entry into host cells is a critical step for infection.
  • Antibody-mediated neutralization is a key component of the host immune response against HCV.
  • The E2-CD81 interaction is a primary target for neutralizing antibodies (nAbs).

Purpose of the Study:

  • To review the mechanisms of HCV entry into target cells.
  • To explore the role of neutralizing antibodies (nAbs) in controlling HCV replication.
  • To discuss potential viral escape strategies and therapeutic targets.

Main Methods:

  • Literature review of current research on HCV entry and neutralization.
  • Analysis of studies investigating viral interactions with host cell receptors (CD81, claudins).
  • Examination of the efficacy of neutralizing antibodies (nAbs) against HCV.

Main Results:

  • HCV entry involves complex interactions with host cell factors, including CD81 and claudins.
  • Neutralizing antibodies (nAbs) targeting E2-CD81 interactions are frequent but may not fully control infection.
  • HCV can utilize CD81-dependent and -independent routes, potentially evading nAbs.

Conclusions:

  • Understanding HCV entry pathways and host cell interactions is crucial for developing effective therapies.
  • The role of claudins and cell polarity in HCV entry warrants further investigation.
  • Targeting viral entry and enhancing nAb efficacy are promising strategies for HCV control.