The invention relates to a mitochondrial uncoupling inhibitor sustained-release
nanodot, a preparation method thereof and application of the
nanodot in type 2
diabetes mellitus, and belongs to the technical field of nano-drugs. According to the preparation method disclosed by the invention,
glycine and
genipin are subjected to Schiff reaction to prepare the slow-release
nanodot, and the slow-release nanodot is of a monodisperse spherical structure, has surface negative charges, and can slowly release
genipin under physiological conditions, so that the mitochondrial protection effect of the
genipin is fully exerted. The mitochondrial uncoupling inhibitor slow-release nanodot prepared by the invention can obviously improve the mitochondrial
membrane potential, increase the
cell ATP content, effectively inhibit mtDNA release under the stimulation of IL-1beta and
palmitic acid, effectively inhibit STING
inflammation pathway activation under the stimulation of IL-1beta and PA, obviously reduce pancreatic
beta cell apoptosis, obviously relieve
endoplasmic reticulum stress, and can be used for preparing the mitochondrial uncoupling inhibitor slow-release nanodot. The T2DM mouse
blood sugar is obviously reduced, the glucose tolerance
dose and the
insulin sensitivity are improved, and good
biocompatibility is achieved.