MECHANISM OF INITIAL ATTACHMENT OF CELLS DERIVED FROM HUMAN BONE TO COMMONLY USED PROSTHETIC MATERIALS DURING CELL-CULTURE

被引:147
作者
HOWLETT, CR
EVANS, MDM
WALSH, WR
JOHNSON, G
STEELE, JG
机构
[1] CSIRO,DIV BIOMOLEC ENGN,SYDNEY LAB,N RYDE,NSW 2113,AUSTRALIA
[2] BROWN UNIV,RHODE ISL HOSP,DEPT ORTHOPAED,PROVIDENCE,RI 02903
基金
澳大利亚研究理事会;
关键词
BONE; CELL ADHESION; VITRONECTIN; FIBRONECTIN; TITANIUM; STAINLESS STEEL; ALUMINA; POLYETHYLENES;
D O I
10.1016/0142-9612(94)90070-1
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The suitability of polymeric biomaterials as surfaces for the attachment and growth of cells has often been investigated in cell culture. In this study the contribution that serum fibronectin (Fn) or vitronectin (Vn) make to the attachment and spreading of cells cultured from explanted human bone (bone-derived cells) during the first 90 min of culture was determined for metallic and ceramic surfaces. The requirement for Fn or Vn for attachment and spreading of bone-derived cells onto stainless steel 316 (SS), titanium (Ti) and alumina (Al2O3) and to polyethyleneterephthalate (PET) was directly tested by selective removal of Fn or Vn from the serum prior to addition to the culture medium. Attachment and spreading of bone-derived cells onto SS, Ti and Al2O3 surfaces were reduced by 73-83% when the cells were seeded in medium containing serum from which the Vn had been removed. Cell attachment and spreading on these surfaces when seeded in medium containing Fn-depleted serum (which contained Vn) were not reduced to the same extent as in the medium containing Vn-depleted serum. The bone-derived cells failed to attach to the surfaces to the same extent when seeded in medium containing serum depleted of both Vn and Fn. Our results show that for human bone-derived cells, the attachment and spreading of cells onto SS, Ti and Al2O3 as well as PET during the first 90 min of a cell culture attachment assay are a function of adsorption of serum Vn onto the surface.
引用
收藏
页码:213 / 222
页数:10
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