A recent study led by the University of Reading in collaboration with the Technical University of Denmark has revealed a novel way to use mRNA technology — the same platform behind many COVID‑19 vaccines — to protect muscle tissue from the destructive effects of snake venom. The research focuses on venom from Bothrops asper, a snake found in Central and South America whose toxin notoriously destroys muscle and often leaves victims with long‑term disabilities.
Shielding Muscles Where Antivenom Falls Short
Traditional antivenoms circulate in the bloodstream but struggle to reach the damaged muscle around the bite site. To address this, the researchers packaged specific mRNA strands inside lipid nanoparticles, which, once injected into the muscle, drive the body’s own cells to produce protective antibodies. In cell-based lab experiments, this treatment curtailed damage caused both by isolated toxins and full venom. In mice, a single injection administered 48 hours before venom exposure helped preserve muscle structure and reduced levels of injury markers like creatine kinase and lactate dehydrogenase.
Challenges on the Road Ahead
While the findings are promising, the team acknowledges several obstacles remain. The protective antibodies take about 12–24 hours to appear after mRNA injection. Also, the current version of the treatment targets only a single venom toxin — but real snake venoms contain many.There is also the practical issue of delivering and storing mRNA therapies in remote regions, where most snakebites occur and refrigeration may not be readily available.
Future Directions
The researchers plan to refine their method to target multiple toxins and are also exploring whether the therapy can work when administered after a bite, rather than only as a preventive. If successful, this approach could become a powerful complement to traditional antivenoms — safeguarding local tissues that current treatments struggle to reach, and thereby reducing the permanent disabilities that afflict hundreds of thousands of snakebite survivors every year.
