Integrin expression at the bone/biomaterial interface.
J Biomed Mater Res
; 57(1): 84-91, 2001 Oct.
Article
in En
| MEDLINE
| ID: mdl-11416853
ABSTRACT
The aim of this study was to visualize integrin expression by cells in interface tissue in relation to their ligands. Tissue samples were obtained from 25 patients undergoing revision of aseptically loose total joint replacements. Serial sections were immunolabeled for the integrins alpha(2)beta(1), alpha(v)beta(3), alpha(4)beta(1), alpha(L)beta(2) (CD11a), alpha(M)beta(2) (CD11b), and alpha(X)beta(2) (CD11c), and the ligands fibronectin, laminin, vitronectin, intercellular adhesion molecule-1, and vascular adhesion molecule-1. Most cells were found to express alpha(2)beta(1), most macrophages and giant cells expressed CD11b, and the majority of CD11a was found on perivascular T lymphocytes. From the small amount of alpha(4)beta(1) and vascular adhesion molecule-1 expression in the interface tissue and the combination of CD11a, CD11b, and intercellular adhesion molecule-1 expression, it would seem that macrophages use beta(2) integrins to transmigrate.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Prostheses and Implants
/
Integrins
/
Arthroplasty, Replacement, Hip
/
Arthroplasty, Replacement, Knee
Limits:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
J Biomed Mater Res
Year:
2001
Document type:
Article
Affiliation country:
United kingdom