Development of new approach methods for the identification and characterization of endocrine metabolic disruptors—a PARC project - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Frontiers in Toxicology Year : 2023

Development of new approach methods for the identification and characterization of endocrine metabolic disruptors—a PARC project

Ola Spjuth
  • Function : Author
Daniel Zalko

Abstract

In past times, the analysis of endocrine disrupting properties of chemicals has mainly been focused on (anti-)estrogenic or (anti-)androgenic properties, as well as on aspects of steroidogenesis and the modulation of thyroid signaling. More recently, disruption of energy metabolism and related signaling pathways by exogenous substances, so-called metabolism-disrupting chemicals (MDCs) have come into focus. While general effects such as body and organ weight changes are routinely monitored in animal studies, there is a clear lack of mechanistic test systems to determine and characterize the metabolism-disrupting potential of chemicals. In order to contribute to filling this gap, one of the project within EU-funded Partnership for the Assessment of Risks of Chemicals (PARC) aims at developing novel in vitro methods for the detection of endocrine metabolic disruptors. Efforts will comprise projects related to specific signaling pathways, for example, involving mTOR or xenobiotic-sensing nuclear receptors, studies on hepatocytes, adipocytes and pancreatic beta cells covering metabolic and morphological endpoints, as well as metabolism-related zebrafish-based tests as an alternative to classic rodent bioassays. This paper provides an overview of the approaches and methods of these PARC projects and how this will contribute to the improvement of the toxicological toolbox to identify substances with endocrine disrupting properties and to decipher their mechanisms of action.
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hal-04167401 , version 1 (20-07-2023)

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Albert Braeuning, Patrick Balaguer, William Bourguet, Jordi Carreras-Puigvert, Katreece Feiertag, et al.. Development of new approach methods for the identification and characterization of endocrine metabolic disruptors—a PARC project. Frontiers in Toxicology, 2023, 5, pp.1212509. ⟨10.3389/ftox.2023.1212509⟩. ⟨hal-04167401⟩
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