Wistar研究所开发基于质粒DNA加电穿孔的单次注射方法,在小鼠模型中产生长达传统GLP-1药物(如Ozempic、Wegovy)10倍的体重减轻与血糖控制效果。pLincretins构建体一次注射可让可检测的incretin持续长达70天。与司美格鲁肽的头对头比较显示,DNA构建体组在观察结束后仍维持代谢改善,而司美格鲁肽组停药后体重反弹。研究还借助AI辅助结构建模设计pSynCretin分子,旨在同时激活GLP-1和GIP受体。
Forget GLP-1 drugs like Ozempic and Wegovy: Wistar researchers say a single DNA-based injection produced weight loss and blood glucose control in mouse models for up to 10x longer.
The method uses plasmid DNA plus electroporation to give cells instructions to make long-acting GLP-1/GIP-like proteins.
In mice, one dose of the pLincretins construct produced detectable incretins for up to 70 days. In a head-to-head comparison, Wistar says mice given the DNA construct maintained metabolic improvements after observation ended, while semaglutide-treated mice began regaining weight after dosing stopped.
They also used AI-assisted structural modeling to design pSynCretin, a molecule aimed at engaging GLP-1 and GIP receptors at once.