D'Anto, Vincenzo and Eckhardt, Alexander and Hiller, Karl-Anton and Spagnuolo, Gianrico and Valletta, Rosa and Ambrosio, Luigi and Schmalz, Gottfried and Schweikl, Helmut (2009) The influence of Ni(II) on surface antigen expression in murine macrophages. BIOMATERIALS, 30 (8). pp. 1492-1501. ISSN 0142-9612, 1878-5905
Full text not available from this repository. (Request a copy)Abstract
Biomedical alloys may release nickel ions during corrosion phenomena and, in addition to their interaction with Oral tissues, these ions may also influence characteristic properties of the immune system cells. The aim Of this Study was to evaluate the effect of nickel chloride on the expression of functionally distinct surface antigens in murine RAW macrophages. The expression of the surface antigens CD14, CD40, MHC class I, MHC class II, CD80, CD86, CD54 was analyzed by flow cytometry. The bacterial endotoxin lipopolysaccharide (LPS) was used as a positive control to induce antigen expression. Cells were stimulated with NiCl2 (0.1 and 0.5 mm) in the presence and absence of LPS (0.1 or 25 mu g/ml). After exposure periods of 6, 24 and 48 h, LPS Caused a time- arid close-dependent increase in the expression of all surface antigens. CD14 expression was Up-regulated by 0.1 mu g/ml LPS by about 10-fold after 24 11 and 100-fold after 48 h. After 48 h, NiCl2 alone up-regulated the expression Of all surface antigens between 2- and 4-fold, while in Cells Stimulated by LPS, 0.1 mm NiCl2 was effective only oil CD14, CD40 and MHC class 1. Moreover, 0.5 mm NiCl2 even inhibited the LPS-induced expression of all Surface antigens, except for CD54, which was still significantly up-regulated. These results Show that nickel chloride is able to induce all Up-regulation Of Surface antigen expression, but a high concentration may impair essential functions Of macrophages Stimulated by LPS. (C) 2008 Elsevier Ltd. All rights reseived.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | NF-KAPPA-B; DENTAL CASTING ALLOYS; INTERCELLULAR-ADHESION MOLECULE-1; IN-VITRO REACTION; ENDOTHELIAL-CELLS; DENDRITIC CELLS; INFLAMMATORY CYTOKINES; SUPEROXIDE-DISMUTASE; SIGNALING PATHWAYS; GENE-EXPRESSION; Nickel; Biocompatibility; Macrophages; Surface antigens |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnerhaltung und Parodontologie > Prof. Dr. rer. nat. Helmut Schweikl Medicine > Lehrstuhl für Zahnerhaltung und Parodontologie > Dr. rer. nat. Karl-Anton Hiller |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Sep 2020 09:46 |
| Last Modified: | 21 Sep 2020 09:46 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29309 |
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