Restoration of cartilage defects using a superparamagnetic iron oxide-labeled adipose-derived mesenchymal stem cell and TGF-β3-loaded bilayer PLGA construct.

Abstract:

:Aim: We aimed to evaluate the capacity of the bilayer polylactic-co-glycolic acid (PLGA)/TGF-β3/adipose-derived mesenchymal stem cell (ADSC) construct used to repair cartilage defects and the role of ADSCs in the repair process in vivo. Materials & methods: Defects were created surgically on the femoropatellar groove of knee joints in 64 rabbits. All the rabbits were randomly divided into four groups: defect group, PLGA group, PLGA/TGF-β3 group and PLGA/TGF-β3/ADSC group. In vivo MRI and Prussian blue staining were applied. Quantitative real-time PCR and western blot methods were used to analyze the gene and protein expression. Results & conclusion: The result showed that TGF-β3 could effectively stimulate the expressions of aggrecan, collagen type II and SRY-related HMG box 9 (SOX9). The bilayer PLGA/TGF-β3/ADSC construct showed a promising repair effect.

journal_name

Regen Med

journal_title

Regenerative medicine

authors

Yang ZG,Tang RF,Qi YY,Chen WP,Xiong Y,Wu LD

doi

10.2217/rme-2019-0151

subject

Has Abstract

pub_date

2020-06-01 00:00:00

pages

1735-1747

issue

6

eissn

1746-0751

issn

1746-076X

journal_volume

15

pub_type

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