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Open AccessReview

Expression, Distribution and Role of Aquaporins in Various Rhinologic Conditions

1
Department of Otorhinolaryngology-Head and Neck Surgery, Myongji Hospital, Hanyang University College of Medicine, Goyang 412-270, Korea
2
St. Vincent’s Hospital, The Catholic University of Korea, Suwon 412-270, Korea
3
Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Graduate School, Kyung Hee University, Seoul 02447, Korea
4
Department of Otorhinolaryngology—Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul 02447, Korea
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(16), 5853; https://doi.org/10.3390/ijms21165853
Received: 17 July 2020 / Revised: 11 August 2020 / Accepted: 12 August 2020 / Published: 14 August 2020
(This article belongs to the Special Issue Ion and Molecule Transport in Membrane Systems 2.0)
Aquaporins (AQPs) are water-specific membrane channel proteins that regulate cellular and organismal water homeostasis. The nose, an organ with important respiratory and olfactory functions, is the first organ exposed to external stimuli. Nose-related topics such as allergic rhinitis (AR) and chronic rhinosinusitis (CRS) have been the subject of extensive research. These studies have reported that mechanisms that drive the development of multiple inflammatory diseases that occur in the nose and contribute to the process of olfactory recognition of compounds entering the nasal cavity involve the action of water channels such as AQPs. In this review, we provide a comprehensive overview of the relationship between AQPs and rhinologic conditions, focusing on the current state of knowledge and mechanisms that link AQPs and rhinologic conditions. Key conclusions include the following: (1) Various AQPs are expressed in both nasal mucosa and olfactory mucosa; (2) the expression of AQPs in these tissues is different in inflammatory diseases such as AR or CRS, as compared with that in normal tissues; (3) the expression of AQPs in CRS differs depending on the presence or absence of nasal polyps; and (4) the expression of AQPs in tissues associated with olfaction is different from that in the respiratory epithelium. View Full-Text
Keywords: aquaporin; water channel; transmembrane permeability; allergic rhinitis; chronic rhinosinusitis; nasal polyp; olfaction aquaporin; water channel; transmembrane permeability; allergic rhinitis; chronic rhinosinusitis; nasal polyp; olfaction
MDPI and ACS Style

Jung, S.Y.; Park, D.C.; Kim, S.S.; Yeo, S.G. Expression, Distribution and Role of Aquaporins in Various Rhinologic Conditions. Int. J. Mol. Sci. 2020, 21, 5853.

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