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Bedal, Konstanze B. ; Grässel, Susanne ; Oefner, Peter J. ; Reinders, Jörg ; Reichert, Torsten E. ; Bauer, Richard

Collagen XVI induces expression of MMP9 via modulation of AP-1 transcription factors and facilitates invasion of oral squamous cell carcinoma

Bedal, Konstanze B., Grässel, Susanne, Oefner, Peter J. , Reinders, Jörg, Reichert, Torsten E. und Bauer, Richard (2014) Collagen XVI induces expression of MMP9 via modulation of AP-1 transcription factors and facilitates invasion of oral squamous cell carcinoma. Plos One 9 (1), e86777.

Veröffentlichungsdatum dieses Volltextes: 12 Feb 2014 12:39
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.29532


Zusammenfassung

Collagen XVI belongs to the family of fibril-associated collagens with interrupted triple helices (FACIT). It is overexpressed during the progression of oral squamous cell carcinoma (OSCC). The present data show a strong collagen XVI-dependent induction of MMP9 and an increase in OSCC cell invasion. We found activated integrin-linked kinase (ILK) in a complex with kindlin-1 and activation of ...

Collagen XVI belongs to the family of fibril-associated collagens with interrupted triple helices (FACIT). It is overexpressed during the progression of oral squamous cell carcinoma (OSCC). The present data show a strong collagen XVI-dependent induction of MMP9 and an increase in OSCC cell invasion. We found activated integrin-linked kinase (ILK) in a complex with kindlin-1 and activation of protein kinase B (PKB/Akt) to be responsible for MMP9 induction. Inhibition of the formation of focal adhesions reduced MMP9 expression. Moreover, collagen XVI overexpressing OSCC cell clones (COLXVI cell clones) transfected with vectors containing different MMP9 promoter fragments adjacent to a luciferase reporter revealed an increase in luciferase signal dependent on AP-1 binding sites. Deletion of the AP-1 binding site 98 bp upstream of the reported transcription start site and inhibition of AP-1 with Tanshinone IIA resulted in decreased MMP9 expression. The AP-1 subunit JunB showed differential expression between COLXVI cell clones and mock control cells. Additionally, mass spectrometric analysis of immunoprecipitates revealed that c-Fos interacted strongly with dyskerin in COLXVI cell clones compared to mock controls.



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Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftPlos One
Verlag:PUBLIC LIBRARY SCIENCE
Ort der Veröffentlichung:SAN FRANCISCO
Band:9
Nummer des Zeitschriftenheftes oder des Kapitels:1
Seitenbereich:e86777
Datum23 Januar 2014
InstitutionenMedizin > Lehrstuhl für Mund-, Kiefer- und Gesichtschirurgie
Medizin > Lehrstuhl für Mund-, Kiefer- und Gesichtschirurgie
Identifikationsnummer
WertTyp
10.1371/journal.pone.0086777DOI
Stichwörter / KeywordsNEAR-TERM NEWBORNS; HEALTHY TERM; NEONATAL JAUNDICE; BILIRUBIN; HYPERBILIRUBINEMIA; KERNICTERUS; OXYGENATION; ANTIOXIDANT; MANAGEMENT; APOPTOSIS;
Dewey-Dezimal-Klassifikation600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-295328
Dokumenten-ID29532

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