Researchers Engineered Dual-Labeled Viral RNA Imaging
New Mango-II aptamer tags enable real-time tracking of Zika and chikungunya viral RNA interactions inside live 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 RNA imaging in live cells. This peer-reviewed study, published on September 21, 2026, also identified the host protein SFPQ as a critical factor for viral replication.
Why it matters
Mapping the specific intracellular host-factor interactions is essential for developing targeted antiviral strategies. This research provides a new methodology for visualizing viral replication complexes in high detail.
The researchers identified over 200 high-confidence host interactors for viral RNA, validating 355 hits from historical datasets. Confocal microscopy confirmed that depleting the SFPQ spliceosome factor significantly decreases RNA production for both viruses.
The players
SFPQ
A host spliceosome factor identified as a critical interactor for Zika and chikungunya viral RNA replication.
The details
By incorporating Mango-II aptamer tags—nucleic acid sequences that bind specifically to fluorescent dyes—into the viral genomes, scientists can now visualize RNA in living cells. Tandem imaging techniques were used to track replication proteins alongside these tagged RNA molecules. The study specifically highlighted that the spliceosome factor SFPQ, a protein involved in RNA processing, colocalizes with viral RNA and is necessary for efficient viral replication.
Timeline
September 21, 2026: The research findings were published in a peer-reviewed article.
The Tech Race
This research advances the broader field of RNA-based intracellular viral imaging by providing a high-resolution window into replication cycles. It builds on the current trajectory of mapping viral host-factor dependencies, extending established techniques to Zika and chikungunya pathogens.
This development currently impacts the specialized laboratory workflows of virologists and infectious disease researchers. It provides a new tool for studying viral behavior, though the technology remains in the research stage and is not yet available for clinical or diagnostic use.
The takeaway
The study establishes that SFPQ is a shared dependency for the replication of both Zika and chikungunya viruses. Researchers should watch for subsequent studies investigating whether inhibiting SFPQ can disrupt the replication cycle of other related RNA viruses.
Further reading
For more on the cutting edge of viral host-factor research, visit Life Sciences.
More information
Read the complete peer-reviewed research article to review the full methodology and data.
Source note: This article includes information reported by Nature.
