Related Experiment Video
Updated: Nov 24, 2025

Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds
Published on: October 29, 2015
Interferon-inducer antivirals: Potential candidates to combat COVID-19
Ashkan Bagheri1, Seyed Mohammad Iman Moezzi1, Pouria Mosaddeghi1
1Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran; Cellular and Molecular Medicine Student Research Group, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Drug repurposing offers hope for COVID-19 treatment by identifying antivirals that boost interferon responses. Further studies are needed to evaluate their safety and efficacy against SARS-CoV-2.
Area of Science:
- Virology
- Immunology
- Pharmacology
Background:
- Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, lacks a definitive cure, necessitating urgent therapeutic strategies.
- Drug repurposing is a viable approach to accelerate the discovery of effective COVID-19 treatments.
- Type I interferons play a crucial role in the immune response against SARS-CoV-2.
Purpose of the Study:
- To identify existing antiviral drugs that can induce type I interferons, potentially offering a new treatment avenue for COVID-19.
- To explore the relevance of various drug categories, including antibiotics, immunosuppressants, and NSAIDs, for their interferon-modulating capabilities against SARS-CoV-2.
Main Methods:
- Utilized the 'drugvirus' database to screen antiviral agents.
- Investigated the potential of these agents to induce interferon signaling pathways.
- Examined a diverse list of drugs, including antibiotics, immunosuppressants, anti-cancer agents, NSAIDs, and calcium channel blockers.
Main Results:
- Identified several antiviral agents with potential relevance to interferon induction.
- The study highlights various drug classes, such as NSAIDs and immunosuppressants, as candidates for further investigation.
- Drug repurposing may yield candidates with synergistic effects against SARS-CoV-2 through combined antiviral and IFN-modifying mechanisms.
Conclusions:
- Drug repurposing, particularly focusing on interferon induction, presents a promising strategy for COVID-19 treatment.
- Further rigorous studies are essential to assess the benefits and risks of identified drug candidates.
- Understanding drug mechanisms and structures could guide the development of novel therapeutics for future viral threats.
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...
siRNA - Small Interfering RNAs
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
Subviral Agents
Antimicrobial Proteins
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
RNA Interference
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
Viruses with RNA Genomes

