Binding of fibronectin to human lipoproteins.
Clin Chim Acta
; 182(1): 75-85, 1989 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-2502332
ABSTRACT
High molecular mass adhesive glycoprotein plasma fibronectin binds to isolated HDL and LDL lipoprotein fractions in a solid phase radioimmunoassay. Mean dissociation constants of interaction of fibronectin and immobilized HDL and LDL lipoproteins isolated from eight patients with type IIa and type IV hyperlipoproteinemia are 7.8 +/- 3.2 X 10(-7) mol/l and 6.8 +/- 2.6 X 10(-7) mol/l, respectively. Fibronectin can also bind to HDL and LDL isolated from six healthy subjects with mean dissociation constants of 2.07 +/- 0.45 X 10(-6) mol/l and 2.25 +/- 0.48 X 10(-6) mol/l, respectively. The binding is not dependent on the presence of divalent cations. Fibronectin-lipoprotein interaction is inhibited by soluble lipoproteins. There is no observable interaction between fibronectin and VLDL fraction. Binding of fibronectin to HDL and LDL lipoproteins can have an in vivo significance, since the interaction may play a role in the metabolism, deposition of lipoproteins into the vessel wall and in atherogenesis.
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Base de dados:
MEDLINE
Assunto principal:
Fibronectinas
/
Hiperlipoproteinemia Tipo II
/
Hiperlipoproteinemia Tipo IV
/
Lipoproteínas
Limite:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Clin Chim Acta
Ano de publicação:
1989
Tipo de documento:
Article
País de afiliação:
Hungria