Table 2 Engineering modifications of different MSCs-derived EVs in the treatment of OP.

From: Enhancing osteoporosis treatment with engineered mesenchymal stem cell-derived extracellular vesicles: mechanisms and advances

Source of EVs

Terminology

Engineering Tools

Cargo and modifications

Model

Effect

Ref.

BMMSCs

Exosomes

Genetic modifications

AntagomiR-31a-5p

Age-related osteoporotic mouse models

Reduce osteoclast activity

[76]

Exosomes

Co-cultivation, gene engineering

MiR-21-5p inhibitor

In vitro

Improve OP

[77]

Exosomes

Genetic modifications

MiR-150-3p

OVX rats

Promote osteoblast proliferation and differentiation

[78]

Exosomes

Co-cultivation, gene engineering

LncRNAMALAT1

OVX mice

Promote osteogenic differentiation of BMMSCs

[79]

EVs

Content modifications

GPNMB

OVX rats

Attenuate bone loss

[81]

Exosomes

Surface modifications

BMMSC-Exo-Apt

OVX mice

Increase bone mass and accelerate bone healing

[83]

EVs

Integrate with biomaterials

BGN

OVX rats

Inhibit osteoclast differentiation and relieving bone loss

[85]

Exosomes

Integrate with biomaterials, genetic modifications

MBG

Rat cranial defect model

Enhance the bone forming and induce rapid initiation of bone regeneration

[86]

Exosomes

Integrate with biomaterials

NC

Femur neck canal defect model

Reduce the risks of fractures in osteoporotic animals

[87]

ADSCs

Exosomes

Genetic modifications

MiR-146a

Diabetic OP models

Induce the inactivation of inflammasome, and reduce bone resorption and recover bone loss

[97]

EVs

Integrate with biomaterials

Bio-Ppy-Ti

In vitro

Exhibit superior cellular compatibility and osteoinductive properties

[99]

EVs

Integrate with biomaterials

PLGA

Skull defect mice

Enhance bone regeneration

[100]

UCMSCs

EVs

Genetic modifications

MiR-3960

Senile osteoporotic mice

Increase trabecular and cortical bone mass

[43]

EVs

Genetic modifications

CLEC11A

OVX mice, HLU-induced DOP rat models

Prevent OP by maintaining bone mass and strength

[103]

Exosomes

Co-cultivation

Hsa-mir-2110 and hsa-mir-328-3p

Estrogen-deficient OP model mice

Promote osteoblast proliferation

[104]

hiPSCs

EVs

Surface modifications, genetic modifications

SDSSD, siShn3

OVX mice

Promote osteogenesis and inhibit osteoclasts

[107]

Exosomes

Surface modifications, genetic modifications

BT-Exo-siShn3

OVX mice

Enhance osteogenic differentiation and promote angiogenesis

[108]

USCs

EVs

Genetic modifications

ShCTHRC1, shOPG

OVX mice

Restore the reduced bone strength

[110]