Investigation into the effects of leukemia inhibitory factor on the bone repair capacity of BMSCs-loaded BCP scaffolds in the mouse calvarial bone defect model

Liang，Youde1,2; Zhou，Ruiping2; Liu，Xin2; Liu，Zhikang2; You，Lin2; Chen，Chang2; Ye，Xiaoling2

2021

10.1007/s10863-021-09899-z

JOURNAL OF BIOENERGETICS AND BIOMEMBRANES   影响因子和分区

0145-479X

1573-6881

Leukemia inhibitory factor (LIF) is known to play a major role in bone physiology. In the present study, we examined the in vitro effects of LIF on osteoblast differentiation of bone marrow stem cells (BMSCs) and explored in vivo effects of LIF on the bone repair capacity of BMSCs-loaded biphasic calcium phosphate (BCP) scaffolds in mouse calvarial bone defect model. The mRNA and protein expression levels in the BMSCs were determined by quantitative real-time PCR and western blot, respectively; the in vitro osteoblast differentiation of the BMSCs was evaluated by using Alizarin Red S staining. The bone volume and bone density in the repaired calvarial bone defect were determined by Micro-CT. Bone regeneration was also histologically evaluated by hematoxylin and eosin staining and Masson’s trichrome staining. Hypoxia treatment induced the up-regulation of Lif mRNA and LIF protein in the BMSCs. Lif overexpression up-regulated the mRNA expression levels of osteopontin and Runt-related transcription factor 2, and increased intensity of Alizarin Red S staining in the BMSCs; while Lif silence exerted the opposite effects. The in vivo studies showed that implantation of Lif-overexpressing BMSCs-loaded BCP scaffolds significantly increased the bone volume and bone density at 4 and 8 weeks after transplantation, and promoted the regeneration of bone tissues in the mouse calvarial bone defect at 8 weeks after transplantation when compared to the BMSCs-loaded BCP scaffolds group; while Lif-silencing BMSCs-loaded BCP scaffolds had the opposite effects. The present study for the first time demonstrated that LIF promoted the in vitro osteoblast differentiation of hypoxia-treated BMSCs; and further studies revealed that LIF exerted enhanced effects on the bone repair capacity of BMSCs-load BCP scaffolds in mouse calvarial bone defect model. However, future studies are warranted to determine the detailed mechanisms of LIF in the large-scale bone defect repair.

Bone marrow stem cells Bone repair Leukemia inhibitory factor Mouse calvarial bone defect Osteoblast differentiation

SCI

英语

通讯

WOS:000659891200001

BIOLOGY & BIOCHEMISTRY

2-s2.0-85107593427

Scopus

1.Department of Stomatology,Huazhong University of Science and Technology Union Shenzhen Hospital,Shenzhen,China
2.Department of Stomatology,Southern University of Science and Technology Yantian Hospital,Shenzhen,China

Liang，Youde,Zhou，Ruiping,Liu，Xin,et al. Investigation into the effects of leukemia inhibitory factor on the bone repair capacity of BMSCs-loaded BCP scaffolds in the mouse calvarial bone defect model[J]. JOURNAL OF BIOENERGETICS AND BIOMEMBRANES,2021.

Liang，Youde.,Zhou，Ruiping.,Liu，Xin.,Liu，Zhikang.,You，Lin.,...&Ye，Xiaoling.(2021).Investigation into the effects of leukemia inhibitory factor on the bone repair capacity of BMSCs-loaded BCP scaffolds in the mouse calvarial bone defect model.JOURNAL OF BIOENERGETICS AND BIOMEMBRANES.

Liang，Youde,et al."Investigation into the effects of leukemia inhibitory factor on the bone repair capacity of BMSCs-loaded BCP scaffolds in the mouse calvarial bone defect model".JOURNAL OF BIOENERGETICS AND BIOMEMBRANES (2021).