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  • Title: Bridging toxicological properties of environmental chemicals between animals and humans using healthy organoid systems.
    Author: Imai T, Ishigamori R, Naruse M, Ochiai M, Maru Y, Hippo Y, Totsuka Y.
    Journal: J Toxicol Sci; 2024; 49(10):425-434. PubMed ID: 39358232.
    Abstract:
    The application of organoids derived from animal tissues and human-induced pluripotent stem cells to safety assessments of environmental chemicals has been introduced over the last decade. One of the objectives of this approach is to develop an alternative method for animal toxicological studies, while another is to focus on the local reactions of chemicals in each organ/tissue. One of the most important goals is bridging the toxicological properties of chemicals between animals and humans, which may be compared on a level playing field using healthy organoids derived from both animals and humans in vitro, excluding species difference in the absorption, distribution, metabolism, and excretion properties of chemicals in vivo. An overview of the application of organoid systems to safety assessments of environmental chemicals, including general toxicology, developmental toxicology, carcinogenicity, and mutagenicity, was provided herein, and bridging strategies using both animal and human organoids are proposed as a future perspective.
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