Related Experiment Video

Updated: Oct 2, 2025

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
06:02

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors

Published on: September 13, 2018

7.0K

Schlafens Can Put Viruses to Sleep

Eui Tae Kim1,2, Matthew D Weitzman3,4,5

  • 1Department of Microbiology and Immunology, Jeju National University College of Medicine, Jeju 63241, Korea.

Viruses
|February 26, 2022
PubMed

Insights

Schlafen proteins are key antiviral factors that restrict both RNA and DNA virus replication. Understanding their role in innate immunity offers new insights into host defense mechanisms against viral infections.

Area of Science:

  • Immunology
  • Virology
  • Molecular Biology

Background:

  • The Schlafen gene family encodes proteins with diverse biological roles, including cell proliferation and differentiation.
  • Schlafen proteins were first identified in mice and have been implicated in cancer biology and viral defense.
  • These proteins act as crucial components of the innate immune system, providing antiviral barriers.

Purpose of the Study:

  • To review the cellular functions of Schlafen proteins.
  • To elucidate the relationship between Schlafen proteins and innate immunity.
  • To discuss the distinct roles of Schlafen proteins as host restriction factors against viral infections.

Main Methods:

  • Literature review of existing studies on Schlafen gene family.
  • Analysis of Schlafen protein functions in cellular processes.
  • Examination of Schlafen's role in antiviral defense mechanisms.

Main Results:

  • Schlafen proteins inhibit the replication of both RNA and DNA viruses.
  • They contribute to intrinsic and innate host immunity through direct and indirect mechanisms.
  • Schlafen proteins function as host restriction factors, limiting viral propagation.

Conclusions:

  • Schlafen proteins are critical regulators of the host antiviral response.
  • Further investigation into Schlafen function will illuminate novel host-pathogen interactions.
  • The Schlafen family represents a significant area for developing new antiviral strategies.
Keywords:
SLFNSchlafenimmune evasioninnate immunityrestriction factorvirus

More Related Videos

Quantitative Measurement of the Immune Response and Sleep in Drosophila12:16

Quantitative Measurement of the Immune Response and Sleep in Drosophila

Published on: December 4, 2012

15.6K
The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila06:06

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila

Published on: December 14, 2020

3.7K

Related Concept Videos

Size and Structure of Viral Genomes01:26

Size and Structure of Viral Genomes

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...
190
Retrovirus Life Cycles01:10

Retrovirus Life Cycles

Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
47.3K
Viruses with RNA Genomes01:29

Viruses with RNA Genomes

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...
187
Subviral Agents01:29

Subviral Agents

Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...
157
Understanding Sleep01:11

Understanding Sleep

Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
705
Viral Structure00:56

Viral Structure

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.
65.6K