Exploring the Independent and Combined Effects of Persistent Organic Pollutants and Hypoxia on Human Adipocyte Functions

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Title: Exploring the Independent and Combined Effects of Persistent Organic Pollutants and Hypoxia on Human Adipocyte Functions
Authors: Myre, Maxine
Date: 2014
Abstract: Persistent organic pollutants (POPs) and adipose tissue hypoxia have been shown to independently affect adipocyte functions. The goals of this study were to (1) determine the effect of PCB-77, PCB-153, and DDE on the differentiation of human preadipocytes, and (2) investigate the cross-talk between PCB-77 and hypoxia in differentiated human adipocytes. First, human preadipocytes were exposed to PCB-77, PCB-153, or DDE during the entire 14-day differentiation period. We found no effect of low POP levels on lipid accumulation. Second, differentiated human adipocytes were exposed to a combination of PCB-77 and hypoxia. We demonstrated gene-specific cross-talk between PCB-77 and hypoxia, showing an additive effect of PCB-77 on VEGF, MCP-1, and adiponectin, as well as an inhibition of PCB-77-induced expression of CYP1A1 by hypoxia. This work has expanded our understanding of the role of POPs and hypoxia in differentiated human adipocytes.
URL: http://hdl.handle.net/10393/30416
http://dx.doi.org/10.20381/ruor-3485
CollectionThèses, 2011 - // Theses, 2011 -
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