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Biochem Biophys Res Commun. 2005 Sep 9;334(4):1180-3.

Inhibition by adiponectin of IL-8 production by human macrophages upon coculturing with late apoptotic cells.

Author information

1
Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1, Miyama, Funabashi, Chiba, Japan.

Abstract

Adiponectin, an adipocyte-derived hormone, reportedly suppresses the production of TNF-alpha and IL-6 by LPS-stimulated human or porcine macrophages, and the phagocytosis of microbeads by human macrophages. In this study, we used a high molecular weight form of adiponectin purified from human plasma to examine its effects on the phagocytosis of late apoptotic cells by human macrophages and the subsequent IL-8 production. Adiponectin suppressed both the phagocytosis of apoptotic cells and the IL-8 production. In contrast, adiponectin augmented both the phagocytosis of apoptotic cells and the IL-8 production in the presence of LPS. These results suggest that adiponectin is not an anti-inflammatory hormone but rather a dual modulator of innate responses.

PMID:
16039610
DOI:
10.1016/j.bbrc.2005.07.016
[Indexed for MEDLINE]

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