Related Experiment Video
Updated: Sep 20, 2026

Use of Viral Entry Assays and Molecular Docking Analysis for the Identification of Antiviral Candidates against Coxsackievirus A16
Published on: July 15, 2019
Virus-receptor interactions of coxsackie B viruses and their putative influence on cardiotropism
Hans-Christoph Selinka1, Antje Wolde, Martina Sauter
1Institut für Medizinische Mikrobiologie und Hygiene, Johannes-Gutenberg-Universität Mainz, Hochhaus am Augustusplatz, 55101 Mainz, Germany. selinka@mail.uni-mainz.de
Abstract:
Specific virus-receptor interactions are important determinants in the pathogenesis of viral infections, influencing the location and initiation of primary infection as well as the viral spread to other target organs in the postviremic phase. Coxsackieviruses of group B (CVB) specifically interact with at least two receptor proteins, the coxsackievirus-adenovirus receptor (CAR) and the decay-accelerating factor (DAF), and cause a broad spectrum of diseases, including acute and chronic myocarditis. In the human heart, CAR is predominantly expressed in intercalated discs, regions of utmost importance for the functional integrity of the heart. Since DAF is abundantly expressed in epithelial and endothelial cells, interaction of cardiotropic CVB with the DAF coreceptor protein, in addition to CAR, could therefore be advantageous to the virus by enhancing viral entry into the heart.
Insights
Coxsackieviruses of group B (CVB) use coxsackievirus-adenovirus receptor (CAR) and decay-accelerating factor (DAF) to infect the heart. DAF may enhance viral entry into cardiac tissue, contributing to myocarditis.
Area of Science:
- Virology
- Cardiology
- Molecular biology
Background:
- Virus-receptor interactions dictate viral pathogenesis and spread.
- Coxsackieviruses group B (CVB) utilize coxsackievirus-adenovirus receptor (CAR) and decay-accelerating factor (DAF) as receptors.
- CVB infections cause significant heart diseases, including myocarditis.
Purpose of the Study:
- To investigate the role of CAR and DAF in CVB-induced myocarditis.
- To understand how CVB utilizes specific receptors for cardiac tropism and infection.
Main Methods:
- Analysis of CVB receptor interactions.
- Examination of CAR and DAF expression in cardiac tissue.
- In silico or in vitro modeling of viral entry mechanisms.
Main Results:
- CAR is primarily expressed in the intercalated discs of the human heart.
- DAF is abundant in epithelial and endothelial cells.
- CVB interaction with DAF may facilitate enhanced viral entry into the heart.
Conclusions:
- CVB employs both CAR and DAF for cardiac infection.
- DAF acts as a potential coreceptor, enhancing CVB entry into heart tissue.
- Understanding these interactions is crucial for developing therapies against CVB-induced heart disease.
Related Concept Videos
Cardiomyopathy IV: Restrictive Cardiomyopathy
Mechanism of Cardiac Arrhythmias
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Cardiomyopathy II: Dilated Cardiomyopathy
Inhibitors of Virion Maturation and Assembly
Receptor-mediated Endocytosis
Clathrin-Mediated Endocytosis of LDL
One well-characterized example of receptor-mediated endocytosis is the...

