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Imaging InlC Secretion to Investigate Cellular Infection by the Bacterial Pathogen Listeria monocytogenes
Published on: September 19, 2013
Unconventional use of LC3 by coronaviruses through the alleged subversion of the ERAD tuning pathway
Fulvio Reggiori1, Cornelis A M de Haan, Maurizio Molinari
1Department of Cell Biology and Institute of Biomembranes, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands. F.Reggiori@umcutrecht.nl
Abstract:
Pathogens of bacterial and viral origin hijack pathways operating in eukaryotic cells in many ways in order to gain access into the host, to establish themselves and to eventually produce their progeny. The detailed molecular characterization of the subversion mechanisms devised by pathogens to infect host cells is crucial to generate targets for therapeutic intervention. Here we review recent data indicating that coronaviruses probably co-opt membranous carriers derived from the endoplasmic reticulum, which contain proteins that regulate disposal of misfolded polypeptides, for their replication. In addition, we also present models describing potential mechanisms that coronaviruses could employ for this hijacking.
Insights
Coronaviruses hijack endoplasmic reticulum pathways to replicate within host cells. Understanding these viral hijacking mechanisms is key to developing new antiviral therapies.
Area of Science:
- Molecular biology
- Virology
- Cell biology
Background:
- Pathogens, including viruses, exploit host cell machinery for survival and replication.
- Understanding pathogen subversion mechanisms is vital for therapeutic target identification.
- Coronaviruses are a significant public health concern, necessitating research into their replication strategies.
Purpose of the Study:
- To review recent findings on coronavirus replication mechanisms.
- To investigate how coronaviruses co-opt host cell pathways, specifically the endoplasmic reticulum.
- To present models of potential coronavirus hijacking strategies for therapeutic development.
Main Methods:
- Review of recent scientific literature and data on coronavirus-host interactions.
- Analysis of molecular mechanisms involved in endoplasmic reticulum protein processing.
- Development of theoretical models for viral hijacking of cellular components.
Main Results:
- Evidence suggests coronaviruses utilize membranous carriers from the endoplasmic reticulum for replication.
- These carriers contain proteins involved in the disposal of misfolded polypeptides.
- Potential mechanisms for coronavirus hijacking of these endoplasmic reticulum-derived carriers are proposed.
Conclusions:
- Coronaviruses likely exploit the endoplasmic reticulum's protein quality control system for their own propagation.
- Detailed molecular characterization of these hijacking events can reveal novel therapeutic targets.
- Further research into these mechanisms is crucial for combating coronavirus infections.
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