{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T01:22:57Z","timestamp":1793064177959,"version":"4.5.0"},"reference-count":53,"publisher":"Portland Press Ltd.","issue":"15","content-domain":{"domain":["portlandpress.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2018,8,16]]},"abstract":"<jats:p>Rhinovirus (RV) infection is involved in acute exacerbations of asthma and chronic obstructive pulmonary disease (COPD). RV primarily infects upper and lower airway epithelium. Immunoproteasomes (IP) are proteolytic machineries with multiple functions including the regulation of MHC class I antigen processing during viral infection. However, the role of IP in RV infection has not been explored. We sought to investigate the expression and function of IP during airway RV infection. Primary human tracheobronchial epithelial (HTBE) cells were cultured at air\u2013liquid interface (ALI) and treated with RV16, RV1B, or interferon (IFN)-\u03bb in the absence or presence of an IP inhibitor (ONX-0914). IP gene (i.e. LMP2) deficient mouse tracheal epithelial cells (mTECs) were cultured for the mechanistic studies. LMP2-deficient mouse model was used to define the in vivo role of IP in RV infection. IP subunits LMP2 and LMP7, antiviral genes MX1 and OAS1 and viral load were measured. Both RV16 and RV1B significantly increased the expression of LMP2 and LMP7 mRNA and proteins, and IFN-\u03bb mRNA in HTBE cells. ONX-0914 down-regulated MX1 and OAS1, and increased RV16 load in HTBE cells. LMP2-deficient mTECs showed a significant increase in RV1B load compared with the wild-type (WT) cells. LMP2-deficient (compared with WT) mice increased viral load and neutrophils in bronchoalveolar lavage (BAL) fluid after 24 h of RV1B infection. Mechanistically, IFN-\u03bb induction by RV infection contributed to LMP2 and LMP7 up-regulation in HTBE cells. Our data suggest that IP are induced during airway RV infection, which in turn may serve as an antiviral and anti-inflammatory mechanism.<\/jats:p>","DOI":"10.1042\/cs20180337","type":"journal-article","created":{"date-parts":[[2018,7,6]],"date-time":"2018-07-06T13:45:58Z","timestamp":1530884758000},"page":"1711-1723","update-policy":"https:\/\/doi.org\/10.1042\/crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Immunoproteasomes as a novel antiviral mechanism in rhinovirus-infected airways"],"prefix":"10.1042","volume":"132","author":[{"given":"Kris Genelyn","family":"Dimasuay","sequence":"first","affiliation":[{"name":"Department of Medicine, National Jewish Health, Denver, CO, U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amelia","family":"Sanchez","sequence":"additional","affiliation":[{"name":"Department of Medicine, National Jewish Health, Denver, CO, U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niccolette","family":"Schaefer","sequence":"additional","affiliation":[{"name":"Department of Medicine, National Jewish Health, Denver, CO, U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jorge","family":"Polanco","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN, U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deborah A.","family":"Ferrington","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, MN, U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong Wei","family":"Chu","sequence":"additional","affiliation":[{"name":"Department of Medicine, National Jewish Health, Denver, CO, U.S.A."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"288","published-online":{"date-parts":[[2018,8,16]]},"reference":[{"key":"2021113010562341100_B1","doi-asserted-by":"publisher","first-page":"181","DOI":"10.1007\/978-1-4939-1571-2_14","article-title":"Mouse models of rhinovirus infection and airways disease","volume":"1221","author":"Bartlett","year":"2015","journal-title":"Methods Mol. 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