New CRISPR test spots virus infections faster and more sensitively
Chen W, Cao L, Zhu X, Kang W, Qiu Y
Crispr
This is a medical diagnostics study with no connection to plants, gardens, or the outdoors, so it won't affect anything in your yard or the park down the street.
Researchers designed a clever chain reaction where one enzyme trips a second enzyme, which then triggers a gene-editing tool called CRISPR/Cas12a to light up and signal that a virus is present. This chain reaction makes the test roughly ten times more sensitive than older versions, and the team showed it could detect an enterovirus infection in cells and measure how well an antiviral drug blocks the virus. It's a lab diagnostics tool, not something related to plants or gardening.
Key Findings
The cascaded two-enzyme-switch design improved detection sensitivity by roughly one order of magnitude over single-stage CRISPR/Cas12a assays.
The system successfully detected 3C protease activity in cells infected with enterovirus 71, showing it works in complex biological samples.
Dose-dependent testing with the antiviral drug rupintrivir confirmed the platform can be used to evaluate antiviral drug efficacy.
chevron_right Technical Summary
Scientists built a two-step molecular test that uses CRISPR gene-editing tools to detect viral proteins with much higher sensitivity, which could speed up diagnosis of infections like enterovirus 71 and help test antiviral drugs.
Abstract Preview
Original paper
Proteolysis-triggered CRISPR/Cas activation via cascaded enzyme switches for viral protease detection.
Sensitive analysis of viral proteases is crucial for early infection diagnosis and antiviral drug development; however, developing activity-based assays with high sensitivity and broad adaptability...
open_in_new Read full abstractAbstract copyright held by the original publisher.
Was this useful?
Want to tell us more? (optional)
Thanks for the note!
Something went wrong — please try again.
Too many submissions. Try again in an hour.
Gene editing removes 97% of celiac-triggering proteins from bread wheat
It could mean that people with celiac disease — roughly 1 in 100 worldwide — may one day safely eat bread made from real wheat, without sacrificing the taste...
Biosensing involves using biological components — such as enzymes, antibodies, or nucleic acids — integrated with physicochemical detectors to identify and measure specific chemical substances with high sensitivity. In plant science, biosensors enable real-time monitoring of plant metabolites,
arrow_forward Explore topic