NDLI: Stromal Cell-Derived Factor-1 Accelerates Cartilage Defect Repairing by Recruiting Bone Marrow Mesenchymal Stem Cells and Promoting Chondrogenic Differentiation<sup/>.

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Stromal Cell-Derived Factor-1 Accelerates Cartilage Defect Repairing by Recruiting Bone Marrow Mesenchymal Stem Cells and Promoting Chondrogenic Differentiation^.

Content Provider	Europe PMC
Author	Wang, Yuze Sun, Xiaojuan Lv, Jia Zeng, Lingyuan Wei, Xiaochun Wei, Lei
Copyright Year	2017
Abstract	Chemokine stromal cell-derived factor-1 (SDF-1) is a powerful chemoattractant for the localization of CXCR4-positive bone marrow mesenchymal stem cells (BMSCs) into the bone marrow. We studied the effects of SDF-1 on the cartilage defect repair by recruiting BMSCs and promoting its chondrogenic differentiation in vitro and in vivo. Chemotaxis analysis with Transwell plate showed that SDF-1 could recruit BMSCs through SDF-1/CXCR4 axis. Real-time polymerase chain reaction, enzyme-linked immunosorbent assays, and Western blot results suggested that the levels of type II collagen and GAG were increased after incubating BMSCs with SDF-1 compared with the without SDF-1 group. More positive BrdU-labeled BMSCs were detected at the cartilage defect region in the SDF-1 + poly [lactide-co-glycolide] (PLGA) scaffold group (SP) in which those animals showed a smooth and transparent cartilage tissue with a strong staining of toluidine blue and type II collagen compared with the no-SDF-1 groups. ICRS score suggested that the repair effect in the SDF-1 + PLGA-treated animals was improved compared with PLGA scaffold group alone at 4 and 8 weeks after surgery; the repair effect from the SDF + PLGA-treated animals was significantly improved compared with the PLGA alone at 12 weeks after surgery. Our in vitro and in vivo results indicated the following: (1) SDF-1 could recruit the BMSCs into cartilage defect area. (2) SDF-1 induces BMSCs expressing type II collagen and GAG, which may accelerate the BMSCs transforming into chondrocytes under the cartilage microenvironment in vivo. (3) PLGA scaffold attached with SDF-1 remarkably promoted the cartilage defect repairing. The defected cartilage was filled with transparent cartilage 12 weeks after the surgery, which shared a similar structure with the adjacent normal cartilage. Taken together, this research provides a new strategy for cartilage defect repairing.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6037190&blobtype=pdf
Page Count	9
ISSN	19373341
Volume Number	23
DOI	10.1089/ten.tea.2017.0046
PubMed Central reference number	PMC6037190
Issue Number	19-20
PubMed reference number	28478702
Journal	Tissue Engineering. Part A [Tissue Eng Part A]
e-ISSN	1937335X
Language	English
Publisher	Mary Ann Liebert, Inc.
Publisher Date	2017-09-26
Publisher Place	USA
Access Restriction	Open
Rights License	Copyright 2017, Mary Ann Liebert, Inc.
Subject Keyword	chemokine stromal cell-derived factor-1 tissue engineering cartilage defect poly [lactide-co-glycolide]
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biochemistry Bioengineering Biomedical Engineering

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Stromal Cell-Derived Factor-1 Accelerates Cartilage Defect Repairing by Recruiting Bone Marrow Mesenchymal Stem Cells and Promoting Chondrogenic Differentiation.

Stromal Cell-Derived Factor-1 Accelerates Cartilage Defect Repairing by Recruiting Bone Marrow Mesenchymal Stem Cells and Promoting Chondrogenic Differentiation^.