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Related Concept Videos

Retrovirus Life Cycles01:10

Retrovirus Life Cycles

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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...
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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...
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Human Virome01:26

Human Virome

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The human body harbors a vast and diverse viral community known as the human virome. The virome includes bacteriophages that infect bacteria, and eukaryotic viruses that infect human cells. Transient dietary and environmental viruses also contribute to this dynamic ecosystem. Estimates suggest the human body may contain on the order of 10¹³ viral particles, though abundance varies widely by body site and detection method.Comprehensive characterization of the virome has become possible...
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Subviral Agents01:29

Subviral Agents

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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...
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Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds
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Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds

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Current progress in antiviral strategies.

Zhiyong Lou1, Yuna Sun2, Zihe Rao3

  • 1Laboratory of Structural Biology and MOE Laboratory of Protein Science, School of Medicine, Tsinghua University, Beijing, 100084, China.

Trends in Pharmacological Sciences
|January 21, 2014
PubMed
Summary
This summary is machine-generated.

The rise of viral diseases and drug resistance necessitates novel antiviral strategies. Research focuses on targeting viral proteins or host factors to inhibit viral replication and function.

Keywords:
direct virus-targeting antiviralhost-targeting antiviralindirect virus-targeting antiviral

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Area of Science:

  • Virology
  • Infectious Diseases
  • Drug Discovery

Background:

  • Increasing prevalence of chronic viral infections like HIV and HCV.
  • Emergence of new viral threats, including coronaviruses.
  • Growing antiviral drug resistance necessitates new therapeutic approaches.

Purpose of the Study:

  • To review key targets for developing new antiviral strategies.
  • To discuss considerations for both virus-targeting and host-targeting antivirals.
  • To highlight the potential of molecular virology in antiviral discovery.

Main Methods:

  • Review of current literature on viral infection mechanisms.
  • Analysis of molecular targets for antiviral intervention.
  • Examination of strategies for inhibiting viral proteins and host factors.

Main Results:

  • Understanding viral molecular mechanisms offers potential for new antiviral agents.
  • Virus-targeting antivirals inhibit viral proteins (e.g., enzymes) or replication.
  • Host-targeting antivirals modulate host factors crucial for the viral life cycle.

Conclusions:

  • New antiviral strategies are crucial due to disease prevalence and resistance.
  • Targeting viral or host factors presents promising avenues for drug development.
  • Continued research into molecular virology is key to discovering effective antivirals.