Researchers Engineered Dual-Labeled Viral Strains
Scientists used Mango-II aptamer tags to track Zika and chikungunya RNA in living cells.
Updated on Sept. 21, 2026 in Life Sciences
Researchers have successfully engineered Zika and chikungunya viruses with Mango-II aptamer tags to enable real-time imaging of viral RNA. This breakthrough provides new insights into how these viruses interact with host cells during infection.
Why it matters
Identifying these intracellular dynamics is vital for developing effective antiviral strategies against mosquito-borne pathogens. Understanding how viruses hijack host machinery could lead to new methods for blocking viral replication.
The study identified over 200 high-confidence host interactors of viral RNA and corroborated 355 hits from existing data sets. Scientists utilized confocal microscopy to confirm that the spliceosome factor SFPQ colocalizes with viral RNA.
The players
SFPQ
This spliceosome factor was identified as a common host interactor essential for Zika and chikungunya RNA production.
The details
By incorporating Mango-II aptamer tags into viral genomes, researchers tracked replication complexes alongside RNA molecules in live cells. The team specifically identified the spliceosome factor SFPQ as a critical host interactor, noting that its depletion significantly reduces RNA production in both viruses.
Timeline
September 21, 2026: The research findings were published in a peer-reviewed journal.
The Big Picture
This research advances the viral host-factor interaction mapping program by providing a new tool to observe how pathogens hijack cellular machinery. The findings shift the focus toward the spliceosome's role in viral replication, potentially unlocking new pathways for future drug development.
While this is a laboratory discovery, the identification of SFPQ as a common vulnerability could eventually lead to the development of broad-spectrum antiviral drugs. Such treatments would provide medical providers with new tools to mitigate the impact of Zika and chikungunya outbreaks.
The takeaway
Real-time imaging of viral RNA represents a significant leap in our ability to watch viruses in action at a cellular level. This methodology will likely be applied to other pathogens to expedite the discovery of host-targeting therapeutics.
Further reading
For more on the intersection of genetics and virology, visit Life Sciences.
More information
Read the full peer-reviewed research article for comprehensive methodology.
Source note: This article includes information reported by Nature.
