title: [The study of cell biocompatibility of new pattern biphasic calcium phosphate nanocomposite in vitro].
abstract: OBJECTIVE
  To study the cell biocompatibility of porous biphasic calcium phosphate nanocomposite in vitro.
  
  
  METHODS
  Bone marrow mesenchymal cell (BMSCs) obtained from SD rat bone marrow were in vitro induced and proliferated. Afler their osteoblast phenotypes were verified, BMSCs were seeded onto prepared porous biphasic calcium phosphate nanocomposite (Experiment group) and common porous hydroxyapatite (Control group). The cell adhesion was evaluated by scanning electron microscope. Synthesis of alkaline phosphatase enzyme (ALP) and osteocalcin were detected and cell cycle was detected by flow cytometry.
  
  
  RESULTS
  BMSCs could fully attach to and extend on the material in experiment and control group, Moreover, experiment group were superior to control group in adhesion, proliferative abilities and osteogenic activity.
  
  
  CONCLUSIONS
  BMSCs can differentiate to osteoblast phenotype; the porous biphasic calcium phosphate nanocomposite as bone tissue engineering scaffold has good cell biocompatibility.
authors.affiliation: Key Lab. of Oral Biomedical Engineering of Ministry of Education, Sichuan University, Chengdu 610041, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.forename: Wei-Dong
authors.initials: WD
authors.lastname: Tian
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
authors.forename: Xi-Zhe
authors.initials: XZ
authors.lastname: Cheng
authors.forename: Yun-Mao
authors.initials: YM
authors.lastname: Liao
authors.forename: Sheng-Wei
authors.initials: SW
authors.lastname: Li
mesh_terms: D000469:Alkaline Phosphatase; D000818:Animals; D001854:Bone Marrow Cells; D001842:Bone and Bones; D002448:Cell Adhesion; D017886:Durapatite; D006882:Hydroxyapatites; D008422:Materials Testing; D053761:Nanocomposites; D010006:Osteoblasts; D015675:Osteocalcin; D051381:Rats; D023822:Tissue Engineering; D054457:Tissue Scaffolds
chemical_list: D006882:Hydroxyapatites; C074950:hydroxyapatite-beta tricalcium phosphate; D015675:Osteocalcin; D017886:Durapatite; D000469:Alkaline Phosphatase