Related Experiment Video
Updated: Mar 22, 2026
08:32
Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
Published on: March 2, 2014
11.0K
Autophagy and Mammalian Viruses: Roles in Immune Response, Viral Replication, and Beyond
Advances in Virus Research
|April 27, 2016
Summary
Autophagy, a cellular process, is crucial for eliminating viruses and regulating immune responses during infection. Viruses often exploit autophagy for their own replication and spread, highlighting a complex host-pathogen interaction.
Area of Science:
- Cell Biology
- Virology
- Immunology
Background:
- Autophagy is a fundamental cellular catabolic process conserved across species.
- It involves double-membrane vesicles delivering cellular components to lysosomes for degradation.
- Autophagy plays a critical role in cellular defense against intracellular pathogens, including viruses.
Purpose of the Study:
- To review the multifaceted roles of autophagy during viral infections.
- To explore how autophagy regulates the immune response and antigen presentation.
- To examine the mechanisms by which viruses manipulate autophagy for their own benefit.
Main Methods:
- Literature review of key steps in viral infection involving autophagy.
- Analysis of molecular mechanisms of host-pathogen coevolution related to autophagy.
- Selection of exemplary viruses to illustrate intricate relationships with the autophagic machinery.
Main Results:
- Autophagy aids in clearing viral pathogens and modulating immune responses.
- It facilitates antigen presentation to T lymphocytes, influencing adaptive immunity.
- Viruses have evolved strategies to hijack and manipulate autophagy for replication and survival.
Conclusions:
- Autophagy is a dynamic player in viral infections, with roles extending beyond pathogen clearance.
- Understanding the interplay between autophagy and viruses is key to comprehending host-pathogen coevolution.
- Targeting autophagy pathways presents potential therapeutic strategies against viral diseases.
Related Concept Videos
01:29Immune Response Against Viral Pathogens
2.4K
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
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...
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...
2.4K
01:29Viruses with RNA Genomes
1.2K
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
1.2K
00:56Viral Structure
75.7K
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
75.7K
01:30Inhibitors of Viral Protein Synthesis
4
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
4
01:26Size and Structure of Viral Genomes
1.0K
Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
1.0K
01:27Autophagy
6.1K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
6.1K