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| Content Provider | Springer Nature Link |
|---|---|
| Author | You, Hongbo Chen, Anmin Sun, Kai Liu, Tie |
| Copyright Year | 2011 |
| Abstract | The effect of culture in KLD-12 self-assembling peptide nanofiber scaffold containing TGF-β3 gene on differentiation of precartilaginous stem cells (PSCs) into chondrocytes was studied. KLD-12 was synthesized by solid-state method. After TGF-β3 plasmid was loaded into KLD-12 self-assembling peptide nanofiber scaffold, DNA release ability was investigated. PSCs and hTGF-β3 gene were loaded into KLD-12 3-D scaffold, and MTT assay was performed to investigate the cell proliferation, and ELASA assay was used to investigate the expression of TGF-β3. Specific cartilage matrix was examined by quantitative real-time PCR, immunohistochemistry and Alcian Blue staining. Compared with control group, DNA synthesis level of PSCs reached the peak within 3 days when PSCs were cultured in self-assembling peptide nanofiber scaffold loading TGF-β3 plasmid, and maintained this high level within 2 weeks. MTT results showed that the proliferation ability of experimental group was statistically higher than that in control group (P<0.05). Quantitative realtime PCR suggested that the percentage of TGF-β3 positive PSCs in experimental group was higher than that in control group (P<0.01). ELISA assay showed that the TGF-β3 protein level increased in supernatant of experimental group’s PSCs, reached the peak after 72 h and then declined a little to the plateau phase. Compared with the control group, the specific gene of chondrocyte typical extracellular matrix significantly up-regulated (P<0.01). The results showed that PSCs differentiated into chondrocytes in self-assembling peptide nanofiber scaffold loading TGF-β3 plasmid, which provided a fresh approach to cartilage tissue engineering. |
| Starting Page | 634 |
| Ending Page | 640 |
| Page Count | 7 |
| File Format | |
| ISSN | 10002413 |
| Journal | Journal of Wuhan University of Technology-Mater. Sci. Ed. |
| Volume Number | 26 |
| Issue Number | 4 |
| e-ISSN | 19930437 |
| Language | English |
| Publisher | Wuhan University of Technology |
| Publisher Date | 2011-07-26 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | precartilaginous stem cells tissue engineering scaffold gene self-assembled peptide transforming growth factor Materials Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Materials Science |
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