scholarly journals Polyphosphates inhibit extracellular matrix mineralization in MC3T3-E1 osteoblast cultures

Bone ◽  
2013 ◽  
Vol 53 (2) ◽  
pp. 478-486 ◽  
Author(s):  
Betty Hoac ◽  
Tina Kiffer-Moreira ◽  
José Luis Millán ◽  
Marc D. McKee
Author(s):  
J. P. T. M. van Leeuwen ◽  
M. van Driel ◽  
G. J. C. M. van den Bemd ◽  
H. A. P. Pols

Author(s):  
Mariane Beatriz Sordi ◽  
Raissa Borges Curtarelli ◽  
Izabella Thaís da Silva ◽  
Gislaine Fongaro ◽  
Cesar Augusto Magalhães Benfatti ◽  
...  

AbstractIn in vitro culture systems, dexamethasone (DEX) has been applied with ascorbic acid (ASC) and β-glycerophosphate (βGLY) as culture media supplementation to induce osteogenic differentiation of mesenchymal stem cells. However, there are some inconsistencies regarding the role of DEX as osteogenic media supplementation. Therefore, this study verified the influence of DEX culture media supplementation on the osteogenic differentiation, especially the capacity to mineralize the extracellular matrix of stem cells from human exfoliated deciduous teeth (SHED). Five groups were established: G1—SHED + Dulbecco’s Modified Eagles’ Medium (DMEM) + fetal bovine serum (FBS); G2—SHED + DMEM + FBS + DEX; G3—SHED + DMEM + FBS + ASC + βGLY; G4—SHED + DMEM + FBS + ASC + βGLY + DEX; G5—MC3T3-E1 + α Minimal Essential Medium (MEM) + FBS + ASC + βGLY. DNA content, alkaline phosphatase (ALP) activity, free calcium quantification in the extracellular medium, and extracellular matrix mineralization quantification through staining with von Kossa, alizarin red, and tetracycline were performed on days 7 and 21. Osteogenic media supplemented with ASC and β-GLY demonstrated similar effects on SHED in the presence or absence of DEX for DNA content (day 21) and capacity to mineralize the extracellular matrix according to alizarin red and tetracycline quantifications (day 21). In addition, the presence of DEX in the osteogenic medium promoted less ALP activity (day 7) and extracellular matrix mineralization according to the von Kossa assay (day 21), and more free calcium quantification at extracellular medium (day 21). In summary, the presence of DEX in the osteogenic media supplementation did not interfere with SHED commitment into mineral matrix depositor cells. We suggest that DEX may be omitted from culture media supplementation for SHED osteogenic differentiation in vitro studies.


2008 ◽  
Vol 23 (10) ◽  
pp. 1638-1649 ◽  
Author(s):  
William N Addison ◽  
Yukiko Nakano ◽  
Thomas Loisel ◽  
Phillippe Crine ◽  
Marc D McKee

2017 ◽  
Vol 65 (12) ◽  
pp. 723-741 ◽  
Author(s):  
William Marcatti Amarú Maximiano ◽  
Elaine Zayas Marcelino da Silva ◽  
Ana Carolina Santana ◽  
Paulo Tambasco de Oliveira ◽  
Maria Célia Jamur ◽  
...  

2009 ◽  
Vol 23 (S1) ◽  
Author(s):  
Ethel Hipolito Alcantara ◽  
Ria‐Ann R Lomeda ◽  
Young‐Eun Cho ◽  
Md. Jahangir Alam ◽  
In‐Sook Kwun

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