scholarly journals Effects of Intermittent Administration of Parathyroid Hormone (1-34) on Bone Differentiation in Stromal Precursor Antigen-1 Positive Human Periodontal Ligament Stem Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Xiaoxiao Wang ◽  
Yanlan Wang ◽  
Xubin Dai ◽  
Tianyu Chen ◽  
Fanqiao Yang ◽  
...  

Periodontitis is the most common cause of tooth loss and bone destruction in adults worldwide. Human periodontal ligament stem cells (hPDLSCs) may represent promising new therapeutic biomaterials for tissue engineering applications. Stromal precursor antigen-1 (STRO-1) has been shown to have roles in adherence, proliferation, and multipotency. Parathyroid hormone (PTH) has been shown to enhance proliferation in osteoblasts. Therefore, in this study, we aimed to compare the functions of STRO-1(+) and STRO-1(−) hPDLSCs and to investigate the effects of PTH on the osteogenic capacity of STRO-1(+) hPDLSCs in order to evaluate their potential applications in the treatment of periodontitis. Our data showed that STRO-1(+) hPDLSCs expressed higher levels of the PTH-1 receptor (PTH1R) than STRO-1(−) hPDLSCs. In addition, intermittent PTH treatment enhanced the expression of PTH1R and osteogenesis-related genes in STRO-1(+) hPDLSCs. PTH-treated cells also exhibited increased alkaline phosphatase activity and mineralization ability. Therefore, STRO-1(+) hPDLSCs represented a more promising cell resource for biomaterials and tissue engineering applications. Intermittent PTH treatment improved the capacity for STRO-1(+) hPDLSCs to repair damaged tissue and ameliorate the symptoms of periodontitis.

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 41161-41172 ◽  
Author(s):  
Zeqing Zhao ◽  
Jin Liu ◽  
Michael D. Weir ◽  
Ning Zhang ◽  
Li Zhang ◽  
...  

Human periodontal ligament stem cells (hPDLSCs) are promising for tissue engineering applications but have received relatively little attention.


2019 ◽  
Vol 7 (5) ◽  
pp. 1973-1983 ◽  
Author(s):  
Qianmin Ou ◽  
Yingling Miao ◽  
Fanqiao Yang ◽  
Xuefeng Lin ◽  
Li-Ming Zhang ◽  
...  

In bone tissue engineering, it is important for biomaterials to promote the osteogenic differentiation of stem cells to achieve tissue regeneration.


2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Siqi Yao ◽  
Wei Zhao ◽  
Qianmin Ou ◽  
Lanchen Liang ◽  
Xuefeng Lin ◽  
...  

Periodontitis is the main cause of adult tooth loss. Stem cell-based tissue engineering has become a promising therapy for periodontitis treatment. To date, human periodontal ligament stem cells (hPDLSCs) have been shown to be a favorable source for tissue engineering, but modulatory mechanisms of hPDLSCs remain unclear. Approximately 60% of mammalian genes are the targets of over 2000 miRNAs in multiple human cell types, and miRNAs are able to influence various biological processes in the human body, including bone formation. In this study, we found that after osteogenic induction, miR-214 was significantly decreased in hPDLSCs; therefore, we examined the effects of miR-214 on osteogenic differentiation. Computational miRNA target prediction analyses and luciferase reporter assays revealed that activating transcription factor 4 (ATF4) is a direct target of miR-214. We prepared cells overexpressing miR-214 and found that miR-214 negatively regulates osteogenic differentiation of hPDLSCs. For the target of miR-214, ATF4 protein expression level was decreased after induction. In conclusion, we found that miR-214-ATF4 axis is a novel pathway for regulating hPDLSC osteogenic differentiation.


2012 ◽  
Vol 57 (9) ◽  
pp. 1241-1250 ◽  
Author(s):  
Yong Wen ◽  
Jing Lan ◽  
Haiyun Huang ◽  
Meijiao Yu ◽  
Jun Cui ◽  
...  

RSC Advances ◽  
2020 ◽  
Vol 10 (66) ◽  
pp. 40157-40170
Author(s):  
Hong Chen ◽  
Hui Yang ◽  
Michael D. Weir ◽  
Abraham Schneider ◽  
Ke Ren ◽  
...  

Osteomyelitis and post-operative infections are major problems in orthopedic, dental and craniofacial surgeries.


2021 ◽  
Vol 11 (20) ◽  
pp. 9461
Author(s):  
Soo-Jin Son ◽  
Seok-Jin Jang ◽  
Hyung-Chul Rah ◽  
Seok-Hwa Choi

Miniature pigs have been considered as a recommended large animal model for biomedical research. Mesenchymal stem cells offer promising potential for tissue regeneration. Recent studies have suggested that dental pulp stem cells (DPSCs) and periodontal ligament stem cells (PDLSCs) may provide more reliable strategies for the treatment of dental diseases using a cell-based tissue engineering approach. The aim of this study was to isolate and compare the characteristics of the DPSCs and PDLSCs of a miniature pig breed to the DPSCs and PDLSCs of a domestic farm pig breed. Stem cells of the DP and PDL were obtained from a male Yucatan miniature pig (nine months old) and a male domestic farm pig breed (six months old). The cell morphology, surface stem cell marker expression, proliferation, and osteogenic differentiation ability were evaluated. Under a light microscope, the DPSCs and PDLSCs of the miniature pig breed had morphologies similar to those of the domestic farm pig breed. The proliferation of PDLSCs in both animals showed no significant differences, except on day five, whereas the proliferation of DPSCs was significantly higher in the miniature pig breed. However, the osteogenic abilities of the DPSCs and PDLSCs from the miniature pig breed were significantly lower compared to the domestic farm pig breed. This observation emphasizes the need for the breed-specific optimization of an osteogenic differentiation culture protocol for Yucatan miniature pig DPSCs and PDLSCs before application to cell-based therapy for tissue engineering and regenerative medicine.


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