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Updated: Dec 20, 2025

Isolation of Viral Replication Compartment-enriched Sub-nuclear Fractions from Adenovirus-infected Normal Human Cells
Published on: November 12, 2015
The Adenovirus Death Protein - a small membrane protein controls cell lysis and disease
1Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland.
Abstract:
Human adenoviruses (HAdVs) cause widespread acute and persistent infections. Infections are usually mild and controlled by humoral and cell-based immunity. Reactivation of persistently infected immune cells can lead to a life-threatening disease in immunocompromised individuals, especially children and transplant recipients. To date, no effective therapy or vaccine against HAdV disease is available to the public. HAdV-C2 and C5 are the best-studied of more than 100 HAdV types. They persist in infected cells and release their progeny by host cell lysis to neighbouring cells and fluids, a process facilitated by the adenovirus death protein (ADP). ADP consists of about 100 amino acids and harbours a single membrane-spanning domain. It undergoes post-translational processing in endoplasmic reticulum and Golgi compartments, before localizing to the inner nuclear membrane. Here, we discuss the current knowledge on how ADP induces membrane rupture. Membrane rupture is essential for both progression of disease and efficacy of therapeutic viruses in clinical applications, in particular oncolytic therapy.
Insights
Human adenoviruses (HAdVs) cause infections, with the adenovirus death protein (ADP) crucial for viral spread. Understanding ADP
Area of Science:
- Virology
- Molecular Biology
- Immunology
Background:
- Human adenoviruses (HAdVs) are common pathogens causing acute and persistent infections.
- While typically mild, HAdV infections can be severe in immunocompromised individuals.
- No current vaccines or therapies exist for HAdV diseases.
Purpose of the Study:
- To review the mechanism by which the adenovirus death protein (ADP) induces host cell membrane rupture.
- To highlight the significance of ADP-mediated membrane rupture in viral pathogenesis and therapeutic applications.
Main Methods:
- Review of existing literature on adenovirus biology, focusing on the adenovirus death protein (ADP).
- Analysis of ADP's structure, post-translational modifications, and cellular localization.
- Discussion of the proposed mechanisms of ADP-induced membrane disruption.
Main Results:
- ADP is a viral protein essential for progeny virus release through host cell lysis.
- ADP localizes to the inner nuclear membrane after processing in the ER and Golgi.
- ADP's membrane-spanning domain is implicated in inducing membrane rupture.
Conclusions:
- ADP-mediated membrane rupture is critical for HAdV replication and spread.
- Understanding ADP's function is vital for developing antiviral strategies and optimizing oncolytic virotherapy.
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