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Table 2 MSCs-derived secretome (e.g., exosome) therapy in preclinical models of chronic neurodegenerative diseases

From: Emerging role of mesenchymal stromal cells (MSCs)-derived exosome in neurodegeneration-associated conditions: a groundbreaking cell-free approach

Condition

Model

Cell source

Administration route

Results

Ref

AD

Mice

BM

Intranasal

Stimulation of neuroprotection in part through inhibition of neuroinflammation

[99]

AD

Mice

BM

Intravenous

Attenuation of Aβ levels and provoking anti-inflammatory impact leading to the amelioration of learning and memory functions

[261]

AD

Mice

BM

Intravenous

Reducing cognitive deficits through exosomal miR-146a

[262]

AD

Rat

BM

Intravenous

Induction of neurogenesis

[263]

MS

Mice

PDL

Intravenous

Inhibition of NLRP3 inflammasome activation

[189]

MS

Mice

BM

Intravenous

Attenuation of demyelination lesion area and reducing diseases severity

[186]

MS

Mice

BM

Intravenous

Triggering remyelination and attenuation of the neuroinflammation

[198]

MS

Mice

BM

Intravenous

Reducing diseases severity by HGF delivery

[201]

MS

Mice

AT

Intravenous

Improving the Tregs population and IL-4 levels

[264]

MS

Mice

PDL

Intravenous

Improving IL-37 expression causing down-regulation of the pro-inflammatory cytokines levels

[265]

MS

Mice

SHEDs

Intravenous

Attenuation of demyelination and axonal injury, inhibition of inflammatory cell infiltration and also promoting M2/M1 macrophage ratio

[266]

PD

Rat

BM

Intravenous

Reducing the deterioration of DA neuron in SN and thus promoting dopamine levels in striatum

[100]

PD

Rat

BM

Intravenous

Induction of the protective effect on DA neuron

[101]

PD

Mice

AT

Intravenous

Mitigation of autophagy and pyroptosis

[233]

PD

Mice

AT

Intraperitoneal

Eliciting the HBMECs angiogenesis

[102]

PD

Rat

AT

Intravenous

Exerting antioxidant effects by improving sirtuin 3 levels

[267]

PD

Rat

BM

Intravenous

Amelioration of motor activities

[268]

PD

Rat

BM

Intranigral

Intrastriatal

Promoting neural plasticity

[269]

PD

C. elegans

BM

NA

Decreasing α-syn aggregates in striatum

[228]

HD

Mice

AM

Intraperitoneal

Amelioration of motor functions

[270]

ALS

Mice

AT

Intravenous

Intranasal

Down-regulation of glial cells function, favoring motor neurons, and eliciting protective effect on neuromuscular junctions (NMJs)

[271]

  1. MSCs mesenchymal stromal cells, AD Alzheimer’s disease, PD Parkinson’s disease, ALS amyotrophic lateral sclerosis, HD Huntington’s disease, MS multiple sclerosis, BM bone marrow, AT adipose tissue, PDL periodontal ligament, Aβ amyloid beta-peptide, AM amniotic membrane, NLRP3 NLR family pyrin domain containing 3, HBMECs human brain microvascular endothelial cells, FOXP3 forkhead box P3, α-syn alpha-synuclein, SHED stem cells from human exfoliated deciduous teeth, NA not applicable