Adhesion of mouse hepatocytes to type I collagen: role of supramolecular forms and effect of proteolytic degradation.

Abstract:

:Mouse hepatocytes were found to adhere much stronger to intact native type I collagen than to native, telopeptide-devoid collagen. Removal of telopeptides (by pepsin treatment) caused disintegration of supramolecular collagen aggregates. Similar differences in hepatocyte adhesion were observed between oligomeric and monomeric collagens separated from intact native preparations. It was concluded that the more active cell binding to intact collagen is due to a higher binding affinity of hepatocytes to supramolecular (oligomeric) forms of type I collagen. Heat denturation did not affect cell adhesion to intact collagen but restored adhesion to telopeptide-devoid substrates. Cell adhesion to denatured collagen was RGD-dependent whereas adhesion to native substrates proved RGD-independent. These data provide the first evidence of the role of supramolecular arrangement and the effect of proteolytic degradation of type I collagen on its adhesive behavior.

authors

Berman A,Morozevich G,Karmansky I,Gleiberman A,Bychkova V

doi

10.1006/bbrc.1993.1827

subject

Has Abstract

pub_date

1993-07-15 00:00:00

pages

351-7

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(83)71827-9

journal_volume

194

pub_type

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