Engineered mRNA makes infected cells self-destruct on cue
Li L, Yan XL, Wang HY, Zhou HY, Li YY
Biomedical Research
This is a human biomedical study with no connection to plants, gardens, or the outdoors that a plant enthusiast would encounter.
Researchers built a molecular trap out of a cell-death protein normally used by our immune system, rigging it so that only cells infected by a virus trigger it. When tested against hepatitis A, Zika, and the COVID-19 virus in lab and animal models, the infected cells burst open and died before the virus could spread further, while also signaling nearby immune cells to help clean up. This is entirely a human medicine study and has no link to plants or gardening.
Key Findings
LNP-delivered VIDA mRNA abolished hepatitis A virus replication and shedding in vivo and reduced liver injury
The platform also worked against Zika virus and SARS-CoV-2, showing versatility across unrelated virus families
Generative AI was used to design de novo cleavage motifs for the SARS-CoV-2 main protease, yielding VIDAs with improved antiviral potency
chevron_right Technical Summary
Scientists engineered a modified mRNA that reprograms virus-infected human cells to self-destruct the moment a specific viral protein is detected, stopping infections like hepatitis A, Zika, and COVID-19 in their tracks while alerting the immune system to mop up.
Abstract Preview
Original paper
Viral protease-initiated lytic cell death as a universal antiviral mRNA therapy.
While gasdermin (GSDM)-mediated pyroptosis is a potent immune effector, its antiviral potential remains largely untapped. Here, we introduce viral protease-initiated lytic cell death (VID), a unive...
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