{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T04:42:22Z","timestamp":1778042542556,"version":"3.51.4"},"reference-count":44,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2014,9,22]],"date-time":"2014-09-22T00:00:00Z","timestamp":1411344000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int Forum Allergy Rhinol"],"published-print":{"date-parts":[[2014,11]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Thickened secretions, mucosal edema, and polyp formation are pathological features in chronic rhinosinusitis (CRS) that could theoretically be caused by aberrant water flow through sinonasal mucosa. Aquaporins (AQPs) are a family of proteins with roles in water transport, with tissue\u2010specific expression profiles. This study aims to determine if AQP expression in sinonasal mucosa is different between normal controls and patients with CRS, either with (CRSwNP) or without (CRSsNP) nasal polyps.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>During endoscopic sinus surgery or transsphenoidal surgery, sinonasal tissue was collected and classified as CRSwNP (n = 13), CRSsNP (n = 10), or normal (n = 10). Messenger RNA (mRNA) expression of human AQP0 to AQP12b was determined using quantitative real\u2010time polymerase chain reaction (qRT\u2010PCR). Cellular localization of AQP1, AQP3, AQP4, AQP5, AQP7, and AQP11 was determined by immunohistochemistry.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>mRNA of AQP0 to AQP11 was identified in all samples. AQP12b mRNA was not detected. Significant differences in the mRNA expression levels of AQP4 and AQP11 were identified between normal and CRSwNP patients (<jats:italic>p<\/jats:italic> &lt; 0.05). Differences in the cellular localization of AQPs were observed in both CRSsNP and CRSwNP patients vs normal controls. More intense localization to the cell cytoplasm was observed for AQP5 in glandular epithelium (CRSwNP; <jats:italic>p<\/jats:italic> &lt; 0.05) and surface epithelium (CRSsNP; <jats:italic>p<\/jats:italic> &lt; 0.05), and AQP4 in glandular epithelium (CRSsNP; <jats:italic>p<\/jats:italic> &lt; 0.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study characterized AQP mRNA expression and protein localization in normal human sinonasal tissue. Significant differences in mRNA expression were found for AQP4 and AQP11 in CRSwNP and differences in protein localization patterns of AQP4 and AQP5 were identified in both types of CRS.<\/jats:p><\/jats:sec>","DOI":"10.1002\/alr.21415","type":"journal-article","created":{"date-parts":[[2014,9,22]],"date-time":"2014-09-22T12:42:58Z","timestamp":1411389778000},"page":"901-908","source":"Crossref","is-referenced-by-count":10,"title":["Aquaporin expression profiles in normal sinonasal mucosa and chronic rhinosinusitis"],"prefix":"10.1002","volume":"4","author":[{"given":"Claire","family":"Frauenfelder","sequence":"first","affiliation":[{"name":"Department of Surgery Flinders Medical Centre and Flinders University  Adelaide South Australia Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charmaine","family":"Woods","sequence":"additional","affiliation":[{"name":"Department of Surgery Flinders Medical Centre and Flinders University  Adelaide South Australia Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Damian","family":"Hussey","sequence":"additional","affiliation":[{"name":"Department of Surgery Flinders Medical Centre and Flinders University  Adelaide South Australia Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eng","family":"Ooi","sequence":"additional","affiliation":[{"name":"Department of Surgery Flinders Medical Centre and Flinders University  Adelaide South Australia Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sonja","family":"Klebe","sequence":"additional","affiliation":[{"name":"Department of Anatomical Pathology Flinders Medical Centre and Flinders University  Adelaide South Australia Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. 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