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Xenopus: An alternative model system for identifying muco-active agents

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Title
Xenopus: An alternative model system for identifying muco-active agents
Author(s)
Sim H.J.; Kim S.-H.; Kyung-Jae Myung; Kwon T.; Lee H.-S.; Tae Joo Park
Publication Date
2018-02
Journal
PLOS ONE, v.13, no.2, pp.e0193310 -
Publisher
PUBLIC LIBRARY SCIENCE
Abstract
The airway epithelium in human plays a central role as the first line of defense against environmental contaminants. Most respiratory diseases such as chronic obstructive pulmonary disease (COPD), asthma, and respiratory infections, disturb normal muco-ciliary functions by stimulating the hypersecretion of mucus. Several muco-active agents have been used to treat hypersecretion symptoms in patients. Current muco-active reagents control mucus secretion by modulating either airway inflammation, cholinergic parasympathetic nerve activities or by reducing the viscosity by cleaving crosslinking in mucin and digesting DNAs in mucus. However, none of the current medication regulates mucus secretion by directly targeting airway goblet cells. The major hurdle for screening potential muco-active agents that directly affect the goblet cells, is the unavailability of in vivo model systems suitable for high-throughput screening. In this study, we developed a high-throughput in vivo model system for identifying muco-active reagents using Xenopus laevis embryos. We tested mucus secretion under various conditions and developed a screening strategy to identify potential muco-regulators. Using this novel screening technique, we identified narasin as a potential muco-regulator. Narasin treatment of developing Xenopus embryos significantly reduced mucus secretion. Furthermore, the human lung epithelial cell line, Calu-3, responded similarly to narasin treatment, validating our technique for discovering muco-active reagents. © 2018 Sim et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited © 2018 Sim et al.
URI
http://pr.ibs.re.kr/handle/8788114/5006
ISSN
1932-6203
Appears in Collections:
Center for Genomic Integrity(유전체 항상성 연구단) > Journal Papers (저널논문)
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