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Stimulation of retinoic acid of synthesis and turnover of basement membrane in mouse embryonal carcinoma-derived endoderm cells.
Salomon, D. S.; Liotta, L. A.; Rennard, S. I. et al.
1982In Collagen and Related Research, 2 (2), p. 93-110
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Abstract :
[en] The effect of retinoic acid on the synthesis and degradation of basement membrane components by endoderm cells derived from mouse embryonal carcinoma (EC) cells was studied in a serum-free, defined medium. By immunofluorescence these cells accumulate type IV collagen, laminin, and fibronectin after growth in media containing epidermal growth factor (EGF), fibroblast growth factor (FGF), insulin, transferrin, and Pedersen fetuin. Collagen accounted for 2 to 4% of the newly synthesized proteins, of which 90% were found in the culture media. This collagen was identified as Pro-type IV be gel electrophoresis and enzymatic susceptibility. The EC cells preferentially attached to type IV collagen in vitro and such attachment was mediated by laminin. Treatment of EC cells with retinoic acid caused an increased accumulation of collagen (10 to 15% of secreted proteins) and also stimulated the elaboration of latent protease which degraded laminin and type IV collagen. The laminin-degrading activity was plasminogen dependent. The type IV collagen-degrading activity was a metal protease which could be activated by trypsin or plasmin. It is likely that at least part of the laminin degrading activity is plasmin (mediated through plasminogen activator), since highly purified plasmin is shown to degrade native laminin.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Salomon, D. S.
Liotta, L. A.
Rennard, S. I.
Foidart, Jean-Michel ;  Université de Liège - ULiège > Département des sciences cliniques > Gynécologie - Obstétrique - Labo de biologie des tumeurs et du développement
Terranova, V.
Yaar, M.
Language :
English
Title :
Stimulation of retinoic acid of synthesis and turnover of basement membrane in mouse embryonal carcinoma-derived endoderm cells.
Publication date :
1982
Journal title :
Collagen and Related Research
ISSN :
0174-173X
Publisher :
Gustav Fischer Verlag, Stuttgart, Germany
Volume :
2
Issue :
2
Pages :
93-110
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 04 February 2011

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