In Vitro Osteogenic Differentiation of Human Mesenchymal Stem Cells and In Vivo Bone Formation in Composite Nanofiber Meshes

2008 ◽  
Vol 14 (12) ◽  
pp. 2105-2119 ◽  
Author(s):  
Eun Kyoung Ko ◽  
Sung In Jeong ◽  
Nae Gyune Rim ◽  
Young Moo Lee ◽  
Heungsoo Shin ◽  
...  
2009 ◽  
Vol 185 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Guizhong Liu ◽  
Sapna Vijayakumar ◽  
Luca Grumolato ◽  
Randy Arroyave ◽  
HuiFang Qiao ◽  
...  

Genetic evidence indicates that Wnt signaling is critically involved in bone homeostasis. In this study, we investigated the functions of canonical Wnts on differentiation of adult multipotent human mesenchymal stem cells (hMSCs) in vitro and in vivo. We observe differential sensitivities of hMSCs to Wnt inhibition of osteogenesis versus adipogenesis, which favors osteoblastic commitment under binary in vitro differentiation conditions. Wnt inhibition of osteogenesis is associated with decreased expression of osteoblastic transcription factors and inhibition of c-Jun N-terminal kinase and p38 mitogen-activated protein kinase activation, which are involved in osteogenic differentiation. An hMSC subpopulation exhibits high endogenous Wnt signaling, the inhibition of which enhances osteogenic and adipogenic differentiation in vitro. In an in vivo bone formation model, high levels of Wnt signaling inhibit de novo bone formation by hMSCs. However, hMSCs with exogenous expression of Wnt1 but not stabilized β-catenin markedly stimulate bone formation by naive hMSCs, arguing for an important role of a canonical Wnt gradient in hMSC osteogenesis in vivo.


Bone ◽  
2008 ◽  
Vol 42 ◽  
pp. S30
Author(s):  
R. Siddappa ◽  
J. Doorn ◽  
A. Leusink ◽  
C. van Blitterswijk ◽  
J. de Boer

2017 ◽  
Vol 5 (33) ◽  
pp. 6811-6826 ◽  
Author(s):  
Kui Xu ◽  
Weizhen Chen ◽  
Caiyun Mu ◽  
Yonglin Yu ◽  
Kaiyong Cai

Strontium folic acid derivative (FASr) functionalized titanium surfaces improve the in vitro osteogenic differentiation of MSCs and osseointegration in vivo.


2013 ◽  
Vol 34 (5) ◽  
pp. 699-709 ◽  
Author(s):  
Song Xu ◽  
Kim De Veirman ◽  
Holly Evans ◽  
Gaia Cecilia Santini ◽  
Isabelle Vande Broek ◽  
...  

Gene Therapy ◽  
2021 ◽  
Author(s):  
Gileade P. Freitas ◽  
Helena B. Lopes ◽  
Alann T. P. Souza ◽  
Maria Paula O. Gomes ◽  
Georgia K. Quiles ◽  
...  

2015 ◽  
Vol 116 (5) ◽  
pp. 730-742 ◽  
Author(s):  
Abdul S. Qadir ◽  
Soyoun Um ◽  
Heesu Lee ◽  
Kyunghwa Baek ◽  
Byoung Moo Seo ◽  
...  

2002 ◽  
Vol 292 (1) ◽  
pp. 144-152 ◽  
Author(s):  
Kris Partridge ◽  
Xuebin Yang ◽  
Nicholas M.P. Clarke ◽  
Yasunori Okubo ◽  
Kazuhisa Bessho ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document