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Table 4 Summary of EVs with drug delivery capacity for the treatment of NDs

From: Extracellular vesicles, from the pathogenesis to the therapy of neurodegenerative diseases

Cell/tissue origin

Disease

Surface modification

Loaded cargos

Therapeutic Targets

Administration mode

Models

Outcomes

References

Dendritic cell

PD

RVG

α-syn-siRNA

α-syn

Intravenous injection

α-Syn Tg mice

Reduce intraneuronal α-syn aggregates

[247]

Dendritic cell

PD

RVG

α-syn-shRNA

α-syn

Intravenous injection

Syn PFFs-injected mice

Reduce α-syn aggregation, decrease neuronal death, alleviate PD symptoms

[249]

U87 cell

HD

–

Htt siRNA

Htt

Infusion into the striatum for 7 days

Wild type mice

Reduce Htt expression

[248]

MSC

AD

RVG

miR-146a

NF-κB pathways

Intracerebroventricular injection for 2 times

APP/PS1 mice

Inhibit pro-inflammatory responses of astrocytes and microglia

[167]

MSC & 293T cell

AD

–

miR-29b

BACE1, BIM

Bilateral injection into hippocampal CA1 region

Aβ-treated model rats

Enhance spatial learning and memory

[251]

MSC

AD

–

miR-22

GSDMD

Intravenous injection every 7 days

APP/PS1 mice

Enhance behavioral performance, repress neuroinflammation

[252]

MSC

PD

–

miR-188-3p

CDK5, NLRP3

Intravenous injection for 5 days

MPTP-induced PD mice

Suppress autophagy and pyroptosis

[253]

293T cell

PD

–

Catalase mRNA

ROS

Implantation of EV producers into the brains

6-OHDA-injected mice

Protect neurons against neurotoxicity, inhibit neuroinflammation

[246]

Macrophage

PD

–

Redox catalase

ROS

Intranasal injection for 10 times every other day

6-OHDA-injected mice

Eliminate ROS and display neuroprotective effects

[254]

Macrophage

AD

Mannose

Gemfibrozil

Aβ

Intraperitoneal injection for 7 consecutive days

Aβ-injected mice

Promote Aβ clearance by microglia, improve learning and memory ability

[267]

Blood

PD

–

Dopamine

Dopamine receptors

Intravenous injection

6-OHDA-injected mice

Improve dopaminergic neurons, ameliorate PD phenotype

[255]

NSC

MS

PDGFA

Montelukast

GPR17

Intranasal injection every day for 2 weeks

Cuprizone-treated mice

Promote myelin regeneration

[257]

NSC

MS

–

Bryostatin-1

GPR17

Intravenous injection

Cuprizone-treated mice

Promote myelin regeneration

[256]