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SHR Neuro Krebs Kardio Lipid Stoffw Microb

Wehinger, A; Tancevski, I; Seiler, R; Frotschnig, SM; Frantz, S; Huber, J; Eller, P; Schgoer, W; Foeger, B; Patsch, JR; Ritsch, A.
Influence of aspirin on SR-BI expression in human carotid plaques.
Atherosclerosis. 2009; 206(1):234-238 Doi: 10.1016/j.atherosclerosis.2009.01.034 [OPEN ACCESS]
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Co-Autor*innen der Med Uni Graz
Eller Philipp
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Abstract:
Background: We recently showed that aspirin promotes scavenger receptor class-B type I (SR-BI) protein expression in vitro in primary human macrophages and in vivo in resident peritoneal macrophages of mice. Methods: We compared SR-BI and CD68 expression in carotid atherosclerotic specimens from endarterectomized patients with (n = 38) or without (n = 19) low-dose aspirin medication (100 mg/day) prior to endarterectomy. Results: We found no differences concerning expression of CD68, indicating that aspirin did not influence macrophage content within atherosclerotic plaques. However, aspirin increased the expression of SR-BI protein in the analyzed specimens. In human THP-1-derived macrophages, induction of SR-BI protein by aspirin was abrogated by concomitant pharmacological inhibition of nuclear factor-kappa B (NF-kappa B). In in vitro experiments employing cultured primary macrophages from NF-kappa B/p50 KO mice, aspirin was not able to influence SR-BI expression. Additionally, no considerable effects on SR-BI expression were observed in vivo in resident macrophages of NF-kappa B/p50 KO mice orally treated with low or high doses of aspirin, respectively. Conclusions: We suggest that aspirin treatment might lead to enhanced expression of SR-BI in human plaque macrophages and that this effect is dependent on the presence of NF-kappa B. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
Find related publications in this database (using NLM MeSH Indexing)
Animals -
Antigens, CD - biosynthesis
Antigens, CD36 - biosynthesis Antigens, CD36 - genetics
Antigens, Differentiation, Myelomonocytic - biosynthesis
Aspirin - therapeutic use
Atherosclerosis - drug therapy Atherosclerosis - genetics Atherosclerosis - metabolism
Carotid Artery Diseases - drug therapy Carotid Artery Diseases - metabolism
Endarterectomy, Carotid -
Humans -
Macrophages - drug effects
Mice -
Mice, Knockout -
NF-kappa B - physiology

Find related publications in this database (Keywords)
Aspirin
SR-BI
Carotid plaque
Macrophages
NF-kappa B
Atherosclerosis
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