The endocrine disruptor DEHP and the ECS: analysis of a possible crosstalk

in Endocrine Connections

Correspondence: Jana Ernst, Email: jana.ernst@medizin.uni-halle.de

Studies of the last decade associated the environmental contamination by di-(2-ethylhexyl)-phthalate (DEHP) with obesity and endocrine malfunction. DEHP was found to interact with several receptors - among them receptors of the endocannabinoid system (ECS) with high expression levels in adipose tissue. Furthermore, the correlation for BMI and body fat to the serum endocannabinoid level raises the question if the obesogenic and endocrine-disrupting DEHP-effects are mediated via the ECS. We therefore characterized the ECS in a human cell model of adipogenesis using the SGBS preadipocytes to subsequently investigate if DEHP-exposure affects the intrinsic ECS. The receptors of the ECS and the endocannabinoid-metabolizing enzymes were up-regulated during normal adipogenesis, accompanied by an increasing secretion of the adipokines adiponectin and leptin. DEHP affected the secretion of both adipokines but not the ECS, suggesting DEHP to alter the endocrine function of adipocytes without the involvement of the intrinsic ECS.

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     European Society of Endocrinology

     Society for Endocrinology

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