Bone morphogenetic protein-7 induces the expression of alkaline phosphatase in periosteal cells
10.3969/j.issn.2095-4344.2013.33.003
- VernacularTitle:骨形态发生蛋白7诱导骨膜细胞碱性磷酸酶的表达*
- Author:
Jiacheng LIAO
;
Kangsheng BEI
;
Yinchuan LIAN
- Publication Type:Journal Article
- Keywords:
tissue construction;
bone tissue construction;
bone morphogenetic protein-7;
periosteal cells;
alkaline phosphatase;
induction;
osteoblasts;
cel culture;
provincial grants-supported paper
- From:
Chinese Journal of Tissue Engineering Research
2013;(33):5917-5922
- CountryChina
- Language:Chinese
-
Abstract:
BACKGROUND:The reports on bone morphogenetic protein-7 as a stimulating factor to induce osteogenic are relatively rare.
OBJECTIVE:To study the expression of alkaline phosphatase of periosteal cel s after induced by bone morphogenetic protein-7 in vitro.
METHODS:Periosteal cel s were obtained from adult tibial periosteum, and then the periosteal cel s were
cultured by routine method in vitro. The cel s were divided into experimental group and control group, and then cultured with bone morphogenetic protein-7 plus osteoblast culture adjuvants and simple osteoblast culture
adjuvants, respectively. The phase contrast microscope was used to observe the morphology and ultrastructure of periosteal cel s. Each group was observed at 7, 14 and 21 days, and three samples were observed at each time point. Alkaline phosphatase kit was used to detect the expression of osteoblast-specific markers alkaline phosphatase.
RESULTS AND CONCLUSION:After cultured for 7 days, the proliferation of periosteal cel s in the experimental group and the control group was increased obviously, and the expression of alkaline phosphatase was detected but less. The cel s were spindle in shape, while the expression of alkaline phosphatase in the experimental group was higher than that in the control group. After cultured for 14 days, the proliferation of periosteal cel s in the
experimental group and the control group was increased obviously, the cel morphology was changed from spindle-shaped to wide spindle-shaped, and the expression of alkaline phosphatase in the experimental group was
increased significantly when compared with the control group. After cultured for 21 days, the proliferation of periosteal cel s was detected in the experimental group and the control group, and the proliferation in the experimental group was more significant than that in the control group, the cel morphology was wide spindle-shaped, and the number of alkaline phosphatase in the experimental group was higher than that in the control group. Statistical analysis showed that the
positive rate of osteogenic markers alkaline phosphatase of bone morphogenetic protein-7 induced periosteal cel s in the experimental group was higher than that in the control group (P<0.01). It suggested that periosteal cel s had the
osteogenic and regeneration ability, the bone morphogenetic protein-7 could induce periosteal cel s, promote the expression of alkaline phosphatase, and could induce the periosteal cel s to transform into osteoblasts.
