Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Moazedi-Fuerst, FC; Gruber, G; Stradner, MH; Guidolin, D; Jones, JC; Bodo, K; Wagner, K; Peischler, D; Krischan, V; Weber, J; Sadoghi, P; Glehr, M; Leithner, A; Graninger, WB.
Effect of Laminin-A4 inhibition on cluster formation of human osteoarthritic chondrocytes.
J Orthop Res. 2016; 34(3):419-426
Doi: 10.1002/jor.23036
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- Führende Autor*innen der Med Uni Graz
- Gruber Gerald
- Moazedi-Fürst Florentine
- Co-Autor*innen der Med Uni Graz
- Bodo Koppány Bonifác
- Glehr Mathias
- Graninger Winfried
- Krischan Verena
- Leithner Andreas
- Peischler Daniela
- Sadoghi Patrick
- Stradner Martin Helmut
- Wagner Karin
- Weber Jennifer
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- Abstract:
- Formation of chondrocyte clusters is not only a morphological sign of osteoarthritis but it is also observed in cell culture. Active locomotion of chondrocytes is controlled by integrins in vitro. Integrins bind to Laminin-A4 (LAMA4), a protein that is highly expressed in vivo in clusters of hypertrophic chondrocytes. We tested if LAMA4 is relevant for cluster formation. Human chondrocytes were cultured in a 2D matrigel model and treated with different concentrations of a monoclonal inhibitory anti-LAMA4-antibody. Migration and cluster formation was analysed using live cell imaging technique. Full genome gene expression analysis was performed to assess the effect of LAMA4 inhibition. The data set were screened for genes relevant to cell motility. F-actin staining was performed to document cytoskeletal changes. Anti-LAMA4 treatment significantly reduced the rate of cluster formation in human chondrocytes. Cells changed their surface morphology and exhibited fewer protrusions. Expression of genes associated with cellular motility and migration was affected by anti-LAMA4 treatment. LAMA4-integrin signalling affects chondrocyte morphology and gene expression in vitro, thereby contributing to cluster formation in human osteoarthritic chondrocytes. © 2015 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.
- Find related publications in this database (using NLM MeSH Indexing)
- Aged -
- Cell Movement -
- Cells, Cultured -
- Chondrocytes - physiology
- Female -
- Humans -
- Integrins - metabolism
- Laminin - metabolism
- Middle Aged -
- Osteoarthritis - physiopathology
- Find related publications in this database (Keywords)
- chondrocytes
- migration
- LAMA4
- cluster
- osteoarthritis