{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T15:30:28Z","timestamp":1774020628637,"version":"3.50.1"},"reference-count":50,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2011,8,1]],"date-time":"2011-08-01T00:00:00Z","timestamp":1312156800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2011,8,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Adenosine triphosphate (ATP) and its metabolite adenosine regulate airway mucociliary clearance via activation of purinoceptors. In this study, we investigated the contribution of goblet cells to airway epithelial ATP release. Primary human bronchial epithelial (HBE) cultures, typically dominated by ciliated cells, were induced to develop goblet cell metaplasia by infection with respiratory syncytial virus (RSV) or treatment with IL-13. Under resting conditions, goblet-cell metaplastic cultures displayed enhanced mucin secretion accompanied by increased rates of ATP release and mucosal surface adenosine accumulation as compared with nonmetaplastic control HBE cultures. Intracellular calcium chelation [1,2-bis(o-aminophenoxy)ethane-N,N,N\u2032,N\u2032-tetraacetic acid tetraacetoxymethyl ester] or disruption of the secretory pathways (nocodazole, brefeldin A, and N-ethylmaleimide) decreased mucin secretion and ATP release in goblet-cell metaplastic HBE cultures. Conversely, stimuli that triggered calcium-regulated mucin secretion (e.g., ionomycin or UTP) increased luminal ATP release and adenyl purine accumulation in control and goblet-cell metaplastic HBE cultures. Goblet cell\u2013associated ATP release was not blocked by the connexin\/pannexin hemichannel inhibitor carbenoxolone, suggesting direct nucleotide release from goblet cell vesicles rather than the hemichannel insertion. Collectively, our data demonstrate that nucleotide release is increased by goblet cell metaplasia, reflecting, at least in part, a mechanism tightly associated with goblet cell mucin secretion. Increased goblet cell nucleotide release and resultant adenosine accumulation provide compensatory mechanisms to hydrate mucins by paracrine stimulation of ciliated cell ion and water secretion and maintain mucociliary clearance, and to modulate inflammatory responses.<\/jats:p>","DOI":"10.1165\/rcmb.2010-0253oc","type":"journal-article","created":{"date-parts":[[2010,10,8]],"date-time":"2010-10-08T23:03:14Z","timestamp":1286578994000},"page":"253-260","source":"Crossref","is-referenced-by-count":59,"title":["Coupled Nucleotide and Mucin Hypersecretion from Goblet-Cell Metaplastic Human Airway Epithelium"],"prefix":"10.1093","volume":"45","author":[{"given":"Seiko F.","family":"Okada","sequence":"first","affiliation":[{"name":"Cystic Fibrosis\/Pulmonary Research and Treatment Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liqun","family":"Zhang","sequence":"additional","affiliation":[{"name":"Cystic Fibrosis\/Pulmonary Research and Treatment Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Silvia M.","family":"Kreda","sequence":"additional","affiliation":[{"name":"Cystic Fibrosis\/Pulmonary Research and Treatment Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lubna H.","family":"Abdullah","sequence":"additional","affiliation":[{"name":"Cystic Fibrosis\/Pulmonary Research and Treatment Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. 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