Related Experiment Video
Updated: Jan 30, 2026

Confocal Imaging of Double-Stranded RNA and Pattern Recognition Receptors in Negative-Sense RNA Virus Infection
Published on: January 26, 2019
Double-Stranded RNA Sensors and Modulators in Innate Immunity.
Sun Hur1,2
1Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02115, USA;
Mammalian cells detect double-stranded RNAs (dsRNAs) using various proteins. This review explores the interconnected roles of these dsRNA-binding proteins in antiviral immunity and cellular homeostasis.
Area of Science:
- Immunology
- Molecular Biology
- Virology
Background:
- Double-stranded RNAs (dsRNAs) are key pathogen-associated molecular patterns.
- Innate immunity relies on detecting dsRNAs to initiate antiviral responses.
- Dysregulation of dsRNA sensing impacts cellular homeostasis and immunity.
Purpose of the Study:
- To review dsRNA-binding proteins in mammalian antiviral innate immunity.
- To highlight the interconnectivity and interdependence of these proteins.
- To compare their dsRNA recognition mechanisms.
Main Methods:
- Literature review of dsRNA-binding proteins.
- Analysis of protein families involved in dsRNA detection.
- Discussion of functional relationships and regulatory mechanisms.
Main Results:
- Identified key protein families: RIG-I-like receptors, protein kinase R, oligoadenylate synthases, adenosine deaminases acting on RNA, and RNA interference systems.
- Emphasized the interdependent functions of these proteins.
- Highlighted commonalities and differences in dsRNA binding and recognition.
Conclusions:
- Interconnectivity of dsRNA-binding proteins is crucial for antiviral immunity.
- Understanding these interactions is key to cellular dsRNA homeostasis.
- Further research into shared and distinct recognition mechanisms is warranted.
Related Concept Videos
Fixing Double-strand Breaks
Fixing Double-strand Breaks
Introduction to Innate and Adaptive Immunity
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Cells of the Innate Immune Response
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Lagging Strand Synthesis
There are several major differences between synthesis of the leading strand and synthesis of the lagging strand. 1) Leading strand synthesis happens in the direction of replication fork opening, whereas lagging strand synthesis happens in the...
What is the Immune System?

