The invention discloses a method for synergistically treating Alzheimer's
disease through
gene-modified human interdental stem cells, and belongs to the field of
drug therapy. According to the method, healthy adult dental pulp mesenchymal stem cells (hDPSCs) are extracted, BDNF and NRF2 genes are introduced through lentiviral vectors, the BDNF and NRF2 genes have neurotrophic,
antioxidant and anti-inflammatory capacities, and then the hDPSCs are combined with
curcumin nanoparticles and injected to the
hippocampus of an AD mouse through stereotactic injection. The BDNF can promote nerve regeneration, the NRF2 can improve
oxidative stress and
inflammation environment, and the
curcumin nanoparticles regulate A beta
metabolism and activate a BDNF
signal channel. Experiments show that the
combined therapy can significantly enhance hippocampal
neurogenesis of AD mice and improve expression of
neuron markers, and it is proved through Morse
water maze tests that the
combined therapy can improve the
spatial learning and memory ability of the mice. The method breaks through the limitation of traditional single-target treatment, multi-dimensional
pathological intervention is achieved, the stem cells are rich in source and high in safety, and a new strategy is provided for treatment of the Alzheimer's
disease.