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Cranking up a natural defense pathway boosts cells' resistance to RSV (opens in a new tab)

medicalxpress.com · 2026-10-20

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The source study

Integrin-FAK signaling dependent non-canonical ISGylation by extracellular ISG15 restricts human respiratory syncytial virus infection in epithelial cells

Cell Communication and Signaling · 2026
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Claim 1 of 6Not checkedWashington State University researchers say they discovered how to "crank up" a natural defense system to combat viral infection, potentially opening new therapeutic possibilities beyond infectious disease.View evidenceHide evidence

As statedpotentially opening a new door for treating virus infections, cancer, neurological disorders and other diseases

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Claim 2 of 6Not checkedIn a study published in Cell Communication and Signaling, the team first identified the signaling pathway responsible for activating the defense system and then found how to amplify its response, which significantly increased cells' resistance to infection.View evidenceHide evidence

As statedsignificantly increased cells' resistance to infection

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Claim 3 of 6Not checkedThe researchers focused on ISG15 and report that extracellular ISG15 can act as a booster that activates a previously unknown antiviral pathway in cells, helping prepare surrounding cells to resist infection before a virus can spread.View evidenceHide evidence

As statedhelps prepare surrounding cells to resist infection before a virus can spread

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Claim 4 of 6Not checkedThe team says the pathway is naturally activated during infection but only at low levels, and that adding recombinant ISG15 protein artificially cranked up the response and made cells significantly more resistant to infection.View evidenceHide evidence

As statedsignificantly more resistant to infection

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Claim 5 of 6Not checkedThe article says the effect was demonstrated while studying respiratory syncytial virus, and that further unpublished studies from Bose's lab also showed antiviral activity against influenza A and parainfluenza viruses.View evidenceHide evidence

As statedagainst influenza A and parainfluenza viruses

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Claim 6 of 6Not checkedThe article says the mechanism works by strengthening host cell defenses rather than directly targeting viruses, which may make it less vulnerable to viral mutation.View evidenceHide evidence

As statedmay be less vulnerable to the mutations that often allow viruses to evade treatments

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Integrin-FAK signaling dependent non-canonical ISGylation by extracellular ISG15 restricts human respiratory syncytial virus infection in epithelial cells

Cell Communication and Signaling · 2026

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Papers considered

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Crossref, Europe PMC, PubMed · 40 candidate papers

Selected

Integrin-FAK signaling dependent non-canonical ISGylation by extracellular ISG15 restricts human respiratory syncytial virus infection in epithelial cells

Cell Communication and Signaling · 2026 · Crossref

Source (opens in a new tab)
CandidateOpen access

Fluid percussion trauma to the placental trophoblast triggers multifaceted injury mechanisms, including mitochondrial stress response, immune dysregulation, cytoskeletal, endothelial, and angiogenic signaling cascades.

2026 · Europe PMC

Tessa (opens in a new tab)Source (opens in a new tab)

And 34 more candidates considered.