Related Experiment Video
Updated: Nov 22, 2025

Dissecting Host-virus Interaction in Lytic Replication of a Model Herpesvirus
Published on: October 7, 2011
The emerging roles of the MARCH ligases in antiviral innate immunity
1Department of Immunology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada.
Insights
Membrane-associated RING (MARCH) ligases regulate innate immunity and viral replication. Understanding their complex roles is key for developing new antiviral therapies.
Area of Science:
- Biochemistry
- Immunology
- Virology
Background:
- Membrane-associated RING (really interesting new gene)-cysteine-histidine (CH) (MARCH) ubiquitin ligases are an E3 ligase family with eleven members (MARCH 1-11).
- MARCH ligases are involved in diverse cellular processes, including immune system regulation, protein transport, and degradation pathways.
Purpose of the Study:
- To summarize the intricate roles of MARCH ligases in antiviral innate immune signaling pathways.
- To elucidate the impact of MARCH ligases on viral replication within host immune defense systems.
Main Methods:
- Literature review of seminal studies on MARCH ligases and viral infections.
- Analysis of molecular mechanisms underlying MARCH ligase function in innate immunity.
Main Results:
- MARCH ligases modulate viral replication through diverse mechanisms.
- These ligases regulate signaling molecules and their expression in antiviral innate immune responses.
Conclusions:
- MARCH ligases play a complex role in host antiviral defense.
- Elucidating these molecular mechanisms is crucial for developing novel antiviral therapeutics.
Abstract:
Membrane-associated RING (really interesting new gene)-cysteine-histidine (CH) (MARCH) ubiquitin ligases belong to a RING finger domain E3 ligases family. So far, eleven members have been found in the MARCH family, which are MARCH 1 to 11. The members of the MARCH family are widely distributed and involve in a variety of cellular functions, including regulation of the immune system, transmembrane transport of proteins, protein stability, endoplasmic reticulum-related degradation, and endosome protein transport. Several seminal studies over the past decade have delineated that MARCH affects viral replication through various mechanisms by regulating the activity of signaling molecules and their expression in the antiviral innate immune responses. Here, we summarize the complex roles of MARCH ligases in the antiviral innate immune signaling pathway and its impact on viral replication in host immune defense systems. A better understanding of this interplay's molecular mechanisms is important concerning the development of new therapeutics targeting viral infections.
Related Concept Videos
Immune Response Against Viral Pathogens
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...
Viral Structure
The Antiviral System of Bacteria and Archaea: CRISPR
Leaky Scanning
Mechanisms of Retrovirus-induced Cancers
Antigens Involved in Adaptive Immunity
Complete Antigens
Complete antigens possess both immunogenicity and...

