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Serum Amyloid A Is Not Incorporated Into Hdl During Hdl Biogenesis, Ailing Ji, Xuebing Wang, Victoria P. Noffsinger, Drew Jennings, Maria C. De Beer, Frederick C. De Beer, Lisa R. Tannock, Nancy R. Webb

Saha Cardiovascular Research Center Faculty Publications

Liver-derived serum amyloid A (SAA) is present in plasma where it is mainly associated with HDL and from which it is cleared more rapidly than are the other major HDL-associated apolipoproteins. Although evidence suggests that lipid-free and HDL-associated forms of SAA have different activities, the pathways by which SAA associates and disassociates with HDL are poorly understood. In this study, we investigated SAA lipidation by hepatocytes and how this lipidation relates to the formation of nascent HDL particles. We also examined hepatocyte-mediated clearance of lipid-free and HDL-associated SAA. We prepared hepatocytes from mice injected with lipopolysaccharide or an SAA-expressing adenoviral …