Versican is differentially regulated in the adventitial and medial layers of human vein grafts.

Détails

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Etat: Public
Version: Final published version
Licence: CC0 1.0
ID Serval
serval:BIB_3997C63B2CC2
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Versican is differentially regulated in the adventitial and medial layers of human vein grafts.
Périodique
PloS one
Auteur(s)
Kenagy R.D., Kikuchi S., Evanko S.P., Ruiter M.S., Piola M., Longchamp A., Pesce M., Soncini M., Deglise S., Fiore G.B., Haefliger J.A., Schmidt T.A., Majesky M.W., Sobel M., Wight T.N.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Statut éditorial
Publié
Date de publication
2018
Peer-reviewed
Oui
Volume
13
Numéro
9
Pages
e0204045
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Résumé
Changes in extracellular matrix proteins may contribute significantly to the adaptation of vein grafts to the arterial circulation. We examined the production and distribution of versican and hyaluronan in intact human vein rings cultured ex vivo, veins perfused ex vivo, and cultured venous adventitial and smooth muscle cells. Immunohistochemistry revealed higher levels of versican in the intima/media compared to the adventitia, and no differences in hyaluronan. In the vasa vasorum, versican and hyaluronan associated with CD34+ progenitor cells. Culturing the vein rings for 14 days revealed increased versican immunostaining of 30-40% in all layers, with no changes in hyaluronan. Changes in versican accumulation appear to result from increased synthesis in the intima/media and decreased degradation in the adventitia as versican transcripts were increased in the intima/media, but unchanged in the adventitia, and versikine (the ADAMTS-mediated cleavage product of versican) was increased in the intima/media, but decreased in the adventitia. In perfused human veins, versican was specifically increased in the intima/media in the presence of venous pressure, but not with arterial pressure. Unexpectedly, cultured adventitial cells express and accumulate more versican and hyaluronan than smooth muscle cells. These data demonstrate a differential regulation of versican and hyaluronan in human venous adventitia vs. intima/media and suggest distinct functions for these extracellular matrix macromolecules in these venous wall compartments during the adaptive response of vein grafts to the arterial circulation.
Mots-clé
Adventitia/metabolism, Antigens, CD34/metabolism, Arterial Pressure/physiology, Cells, Cultured, Humans, Hyaluronic Acid/metabolism, Immunohistochemistry, Myocytes, Smooth Muscle/metabolism, Saphenous Vein/cytology, Saphenous Vein/metabolism, Stem Cells/metabolism, Tissue Culture Techniques, Tunica Intima/cytology, Tunica Intima/metabolism, Tunica Media/cytology, Tunica Media/metabolism, Vasa Vasorum/cytology, Vasa Vasorum/metabolism, Veins/cytology, Veins/metabolism, Veins/transplantation, Versicans/genetics, Versicans/metabolism
Pubmed
Web of science
Open Access
Oui
Création de la notice
16/10/2018 15:40
Dernière modification de la notice
20/08/2019 14:29
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