Derrick M Glasco, Zhidong Wang, Seonwoo Kang, Avery T Funkhouser
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引用次数: 3
Abstract
Acetaminophen is a common analgesic, but its potential effects on early embryonic development are not well understood. Previous studies using zebrafish (Danio rerio) have described the effects of acetaminophen on liver development and physiology, and a few have described gross physiological and morphological defects. Using a high but non-embryonic lethal dose of acetaminophen, we probed for defects in zebrafish craniofacial cartilage development. Strikingly, acetaminophen treatment caused severe craniofacial cartilage defects, primarily affecting both the presence and morphology of pharyngeal arch-derived cartilages of the viscerocranium. Delaying acetaminophen treatment restored developing cartilages in an order correlated with their corresponding pharyngeal arches, suggesting that acetaminophen may target pharyngeal arch development. Craniofacial cartilages are derived from cranial neural crest cells; however, many neural crest cells were still seen along their expected migration paths, and most remaining cartilage precursors expressed the neural crest markers sox9a and sox10, then eventually col2a1 (type II collagen). Therefore, the defects are not primarily due to an early breakdown of neural crest or cartilage differentiation. Instead, apoptosis is increased around the developing pharyngeal arches prior to chondrogenesis, further suggesting that acetaminophen may target pharyngeal arch development. Many craniofacial muscles, which develop in close proximity to the affected cartilages, were also absent in treated larvae. Taken together, these results suggest that high amounts of acetaminophen can disrupt multiple aspects of craniofacial development in zebrafish.
期刊介绍:
The Journal of Developmental Biology (ISSN 2221-3759) is an international, peer-reviewed, quick-refereeing, open access journal, which publishes reviews, research papers and communications on the development of multicellular organisms at the molecule, cell, tissue, organ and whole organism levels. Our aim is to encourage researchers to effortlessly publish their new findings or concepts rapidly in an open access medium, overseen by their peers. There is no restriction on the length of the papers; the full experimental details must be provided so that the results can be reproduced. Electronic files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Journal of Developmental Biology focuses on: -Development mechanisms and genetics -Cell differentiation -Embryonal development -Tissue/organism growth -Metamorphosis and regeneration of the organisms. It involves many biological fields, such as Molecular biology, Genetics, Physiology, Cell biology, Anatomy, Embryology, Cancer research, Neurobiology, Immunology, Ecology, Evolutionary biology.