Preclinical studies of EVs as delivery vehicles in neurodegenerative disorders

DiseaseEV source or cargoAnimal modelsEffectsReferences
Alzheimer’s diseaseMesenchymal stem cells (MSCs)-derived EVsAPP/PS1 and icv-STZ miceAlleviate Aβ-induced iNOS and inflammation[124, 126]
Adipose-derived mesenchymal stem cells (ADSCs)-derived EVsAPP/PS1 miceReduce Aβ deposition and decrease microglia activation[125]
Neural stem cell-derived exosomesAPP/PS1 and 5xFAD micePromote mitochondrial biogenesis and restore abnormal protein distribution[127, 128]
EVs-mediated delivery of CB2 receptor agonistAPP/PS1 miceEnhance neuronal regeneration[123]
Parkinson’s diseaseCCR2-enriched mesenchymal stem cell-derived EVs (MSCCCR2-EVs)MPTP-induced PD miceBlock the infiltration of peripheral inflammatory cells[129]
Human umbilical cord mesenchymal stem cell-derived exosomes (HucMSC-EVs)6-OHDA-induced PD miceActivate the Wnt/β-catenin pathway and reduce autophagy[130]
Human umbilical cord blood-derived mononuclear cells (hUCB-MNCs) enriched with miR-124-3p (miR-124-3p sEVs)6-OHDA-induced PD miceInduce neuronal differentiation and protect N27 dopaminergic cells[131]
Human neural stem cell-derived EVs6-OHDA-induced PD miceReduce intracellular reactive oxygen species (ROS) and associated apoptotic pathways[132]
Huntington’s diseaseYoung serum-exosomesR6/2 mice modelReduce mHTT aggregation protein and apoptotic signaling[133]
Human cord blood-derived EVs3-NP-induced HD ratsReduce neuroinflammation[134]
DNAJB6b-enriched neural stem cells (NSCs)-derived EVsR6/2 mice modelReduce mHTT aggregation[135]
Fibroblast-derived EVsHD-derived neuron culturesIncrease the density of inhibitory synapses[136]
Amyotrophic lateral sclerosisMesenchymal stroma-/stem-like cells-derived EVsSOD1(G93A) transgenic primary motor neuronsAntioxidant and anti-apoptotic pathways[137]
Adipose-derived stem cell-derived exosomes (ASC-exosomes)SOD1(G93A) miceImprove motor performance; protect lumbar motoneurons; and decrease glial activation[138]
Adipose-derived stem cell exosomesNeuronal cells from G93A ALS miceReduce cytosolic SOD1 level[139]
Regulatory T cell-derived EVsSOD1 miceIncrease survival, and modulate inflammation[140]
Multiple sclerosisOligodendrocyte precursor cell-derived exosomesExperimental autoimmune encephalomyelitis (EAE) miceReduce microgliosis and astrogliosis[141]
Amniotic fluid stem cell-derived EVsEAE miceReprogramming inflammatory cDC2s[142]
Mesenchymal stem cell-derived EVs containing miR-181a-5pEAE miceInhibit microglial inflammation and pyroptosis through the USP15-mediated RelA/NEK7 axis[143]
Adipose mesenchymal stem cell-derived EVsEAE miceTarget inflamed lymph nodes[144]