scholarly journals Xenotransplantation of human dental pulp stem cells in platelet‑rich plasma for the treatment of full‑thickness articular cartilage defects in a rabbit model

Author(s):  
Ricardo Yanasse ◽  
Roger de L�bio ◽  
Leonardo Marques ◽  
Josianne Fukasawa ◽  
Rosimeire Segato ◽  
...  
2016 ◽  
Vol 34 (11) ◽  
pp. 543-549 ◽  
Author(s):  
Reza Fekrazad ◽  
Mohamadreza Baghaban Eslaminejad ◽  
Arman M. Shayan ◽  
Katayoun A.M. Kalhori ◽  
Fatemeh Mashhadi Abbas ◽  
...  

2018 ◽  
Vol 14 (5) ◽  
pp. 734-743 ◽  
Author(s):  
Tiago Lazzaretti Fernandes ◽  
Kazunori Shimomura ◽  
Andre Asperti ◽  
Carla Cristina Gomes Pinheiro ◽  
Heloísa Vasconcellos Amaral Caetano ◽  
...  

2018 ◽  
Vol 69 (4) ◽  
pp. 894-900 ◽  
Author(s):  
Pal Fodor ◽  
Raluca Fodor ◽  
Arpad Solyom ◽  
Cornel Catoi ◽  
Flaviu Tabaran ◽  
...  

Currently, microfracturing is the most commonly used cartilage repair procedure in cartilage defects. Our aim was to study the mechanism of in vivo cartilage repair in case of full-thickness articular cartilage damage of the knee using a three-dimensional matrix implanted without any preseeded cells in the defect. We also investigated whether platelet-rich plasma application after microfracture procedure of the knee is associated with improved outcome compared with traditional microfracture treatment alone in a rabbit model. Histological examination of the chondral defects, revealed the largest amount of new tissue with hyaline-like cartilage features in Hyalofast group. At 12 weeks from implantation of the Hyalofast scaffold demonstrated complete filling of the defect with hyaline cartilage in admixture with the scaffold and bone metaplasia in the deepest areas. In the PRP group, complete filling of the defect with an admixture of fibrous and hyaline-like cartilage tissue appeared with a discreet tendency of endochondral ossification. We confirmed the superiority of the autologous matrix-induced chondrogenesis compared to microfracture and PRP or microfracture alone in case of full-thickness articular cartilage damage of the knee.


Author(s):  
Anggraini Margono ◽  
Dini Asrianti Bagio ◽  
Indah Julianto ◽  
Endang Suprastiwi

Abstract Objective Platelet-rich plasma (PRP) activation is an important factor in triggering the initial release of blood-derived growth factors from platelets. Vascular endothelial growth factor-A (VEGF-A) can be expressed by human dental pulp stem cells (hDPSCs) and plays an important role in dental pulp angiogenesis. The aim of this study is to analyze the effects of calcium gluconate on PRP activation in hDPSC VEGF-A expression. Materials and Methods Two types of PRP and their corresponding activators were analyzed in this study: PRP (activated using calcium chloride/CaCl2) and PRP-T (activated using CaCl2 with the addition of 10% calcium gluconate). hDPSCs were obtained by using an out-growth method (DPSCs-OG), and harvest between the fifth and sixth passages, then cultured in three different media groups: control, PRP, and PRP-T, which were planted in 96 wells (5 × 103 each well). The VEGF-A expression of hDPSCs was analyzed by using an ELISA test and observed at 24, 48, and 72 hours. Statistical Analysis This study was performed by using one-way ANOVA (p < 0.05) test. Results There were significant differences between all groups (p < 0.05) at 48 and 72 hours of observations, and no significant differences in the PRP and PRP-T groups at 48 and 72 hours of observations (p > 0.05). Conclusion PRP and PRP-T were equally effective in inducing VEGF-A expression of hDPSCs.


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