{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T20:11:27Z","timestamp":1788293487738,"version":"build-2803163510"},"reference-count":31,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2001,8,1]],"date-time":"2001-08-01T00:00:00Z","timestamp":996624000000},"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":[[2001,8,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Mac-1 (CD11b\/CD18) is an important adhesion molecule involved in the migration of leukocytes, cell signaling, and subsequent secretory responses. Its precise role in eosinophil recruitment and activation in vivo is not entirely clear. We wished to directly examine the role of Mac-1 in eosinophil migration in a murine model of allergic pulmonary inflammation. Briefly, wild-type (C57Bl\/6) and Mac-1\u2013deficient\/knockout (Mac-1 KO) mice were intraperitoneally sensitized with ovalbumin (OVA) and alum (AlOH) on Days 0 and 14, and intranasally challenged with OVA either once on Day 14 or five times on Days 14 and 25 through 28. Control animals were challenged with saline. Bronchial hyperresponsiveness was measured, bronchoalveolar lavage (BAL) fluid was collected, and lungs were harvested for histology 24 h after the last challenge. The data demonstrate that wild-type (WT) mice do not respond to one OVA challenge but do develop bronchial hyperreactivity and airway and tissue eosinophilia after five OVA challenges. Conversely, Mac-1 KO mice develop significant airway eosinophilia after one OVA challenge, and the degree of airway inflammation is comparable to that observed in allergic WT mice after five challenges. In Mac-1 KO mice, after five challenges, bronchial hyperreactivity and airway inflammation was significantly enhanced compared with their wild-type counterparts. Administration of an anti\u2013Mac-1 antibody to WT mice, before each of five intranasal OVA challenges, significantly reduces the airway eosinophilia but has no effect on tissue eosinophilia or bronchial hyperresponsiveness. Intravenous injection of interleukin-5 induced a significant blood eosinophilia in both WT and Mac-1 KO mice. Intranasal eotaxin administration induced similar levels of eosinophil migration into the lung tissues and airways of both WT and Mac-1 KO mice. In conclusion, Mac-1\u2013deficient mice develop enhanced eosinophilic inflammation in the lung in response to allergic antigen challenge.<\/jats:p>","DOI":"10.1165\/ajrcmb.25.2.4295","type":"journal-article","created":{"date-parts":[[2013,4,3]],"date-time":"2013-04-03T21:29:04Z","timestamp":1365024544000},"page":"170-177","source":"Crossref","is-referenced-by-count":15,"title":["The Role of Mac-1 (CD11b\/CD18) in Antigen-Induced Airway Eosinophilia in Mice"],"prefix":"10.1093","volume":"25","author":[{"given":"Samina","family":"Kanwar","sequence":"first","affiliation":[{"name":"Speros P. Martel Laboratory of Leukocyte Biology, Department of Pediatrics; Department of Pediatrics, Pulmonary Medicine; and Department of Medicine, Baylor College of Medicine, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C. Wayne","family":"Smith","sequence":"additional","affiliation":[{"name":"Speros P. Martel Laboratory of Leukocyte Biology, Department of Pediatrics; Department of Pediatrics, Pulmonary Medicine; and Department of Medicine, Baylor College of Medicine, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felix R.","family":"Shardonofsky","sequence":"additional","affiliation":[{"name":"Speros P. Martel Laboratory of Leukocyte Biology, Department of Pediatrics; Department of Pediatrics, Pulmonary Medicine; and Department of Medicine, Baylor College of Medicine, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alan R.","family":"Burns","sequence":"additional","affiliation":[{"name":"Speros P. Martel Laboratory of Leukocyte Biology, Department of Pediatrics; Department of Pediatrics, Pulmonary Medicine; and Department of Medicine, Baylor College of Medicine, Houston, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2001,8,1]]},"reference":[{"key":"2026030623594072800_B1","first-page":"115","article-title":"Role of calcium in the shape control of human granulocytes.","volume":"19","author":"Zaffran","year":"1993","journal-title":"Blood Cells"},{"key":"2026030623594072800_B2","doi-asserted-by":"crossref","first-page":"1685","DOI":"10.1084\/jem.166.6.1685","article-title":"Monoclonal antibody to the murine type 3 complement receptor inhibits adhesion of myelomonocytic cells in vitro and inflammatory cell recruitment in vivo.","volume":"166","author":"Rosen","year":"1987","journal-title":"J. Exp. 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