MiR-4465-modified mesenchymal stem cell-derived small extracellular vesicles inhibit liver fibrosis development via targeting LOXL2 expression. / MiR-4465修饰çé´è´¨å¹²ç»èæ¥æºçå°ç»èå¤å泡éè¿é¶åLOXL2表达æå¶è纤维åçè¿å±.
J Zhejiang Univ Sci B
; 25(7): 594-604, 2024 May 17.
Article
in En, Zh
| MEDLINE
| ID: mdl-39011679
ABSTRACT
Liver fibrosis is a significant health burden, marked by the consistent deposition of collagen. Unfortunately, the currently available treatment approaches for this condition are far from optimal. Lysyl oxidase-like protein 2 (LOXL2) secreted by hepatic stellate cells (HSCs) is a crucial player in the cross-linking of matrix collagen and is a significant target for treating liver fibrosis. Mesenchymal stem cell-derived small extracellular vesicles (MSC-sEVs) have been proposed as a potential treatment option for chronic liver disorders. Previous studies have found that MSC-sEV can be used for microRNA delivery into target cells or tissues. It is currently unclear whether microRNA-4465 (miR-4465) can target LOXL2 and inhibit HSC activation. Additionally, it is uncertain whether MSC-sEV can be utilized as a gene therapy vector to carry miR-4465 and effectively inhibit the progression of liver fibrosis. This study explored the effect of miR-4465-modified MSC-sEV (MSC-sEVmiR-4465) on LOXL2 expression and liver fibrosis development. The results showed that miR-4465 can bind specifically to the promoter of the LOXL2 gene in HSC. Moreover, MSC-sEVmiR-4465 inhibited HSC activation and collagen expression by downregulating LOXL2 expression in vitro. MSC-sEVmiR-4465 injection could reduce HSC activation and collagen deposition in the CCl4-induced mouse model. MSC-sEVmiR-4465 mediating via LOXL2 also hindered the migration and invasion of HepG2 cells. In conclusion, we found that MSC-sEV can deliver miR-4465 into HSC to alleviate liver fibrosis via altering LOXL2, which might provide a promising therapeutic strategy for liver diseases.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
MicroRNAs
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Hepatic Stellate Cells
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Mesenchymal Stem Cells
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Extracellular Vesicles
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Amino Acid Oxidoreductases
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Liver Cirrhosis
Limits:
Animals
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Humans
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Male
Language:
En
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Zh
Journal:
J Zhejiang Univ Sci B
Journal subject:
BIOLOGIA
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MEDICINA
Year:
2024
Document type:
Article
Affiliation country:
Country of publication: