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SHR Neuro Krebs Kardio Lipid

Landgraeber, S; Putz, S; Schlattjan, M; Bechmann, LP; Totsch, M; Grabellus, F; Hilken, G; Jäger, M; Canbay, A.
Adiponectin attenuates osteolysis in aseptic loosening of total hip replacements.
Acta Biomater. 2014; 10(1):384-393
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Autor/innen der Med Uni Graz:
Tötsch Martin
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Abstract:
Joint replacements have a longer durability in patients with high serum levels of adiponectin (APN) than in patients with low levels. We aimed to characterize the unknown pathophysiological effects of APN on wear particle-induced inflammation, apoptosis and osteolysis. Immunohistochemistry was performed to detect APN, its receptors and apoptosis in patients with and without aseptic loosening. Additionally, APN knockout mouse studies and pharmacological intervention of APN were performed in an established calvarial mouse model. Osteolysis and inflammation were quantified by histomorphometry and microcomputed tomography, apoptosis by immunohistochemistry and TUNEL assay. In a cell culture model, human monocyte-derived macrophages were incubated with or without metal wear debris particles and partially treated with APN. Expression of APN, AdipoR1 and calreticulin in specimens from patients with aseptic loosening were significantly higher than in patients without aseptic loosening. Administration of APN in mice significantly reduced wear particle-induced inflammation, osteolysis and the number of caspase-3-positive macrophages. The cell culture model showed that APN leads to significantly lower values of TNF-α. These findings support a prominent role of APN in the development of particle-induced osteolysis and APN may be therapeutically useful in patients with aseptic loosening. Copyright © 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Find related publications in this database (using NLM MeSH Indexing)
Adiponectin - metabolism
Adult -
Aged -
Aged, 80 and over -
Animals -
Apoptosis -
Arthroplasty, Replacement, Hip - adverse effects
Cells, Cultured -
Disease Models, Animal -
Female -
Humans -
In Situ Nick-End Labeling -
Inflammation - pathology
Joint Capsule - metabolism
Joint Capsule - pathology
Macrophages - metabolism
Macrophages - pathology
Male -
Mice, Inbred C57BL -
Middle Aged -
Models, Biological -
Osteolysis - etiology
Osteolysis - metabolism
Phagocytosis -
Prosthesis Failure - etiology
Receptors, Adiponectin - metabolism
Skull - metabolism
Skull - pathology

Find related publications in this database (Keywords)
Aseptic loosening
Hip arthroplasty
Adiponectin
Osteolysis
Apoptosis
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