title: Blocking ICAM-1 (CD54) and LFA-1 (CD11a) inhibits experimental allergic conjunctivitis.
abstract: Cell adhesion molecules are critical for the homing and migration of leukocytes into inflamed tissues. We investigated the role of ICAM-1 and LFA-1 in a previously described experimental model of ragweed (Rw)-induced allergic conjunctivitis. SWR/J mice were treated intraperitoneally 6 and 1 h prior to topical challenge with Rw with injections of anti-ICAM-1 monoclonal antibody (mAb), anti-LFA-1 mAb, both anti-ICAM-1 and anti-LFA-mAbs, or rat IgG. Blocking ICAM-1 or LFA-1 reduced the clinical signs of allergic conjunctivitis. Treatment with anti-ICAM-1 or anti-LFA-1 mAbs also significantly inhibited cellular infiltration into the conjunctiva. The greatest inhibitory effect was achieved with the combination of antibodies against both cell adhesion molecules. Since antibodies against ICAM-1 and LFA-1 significantly inhibit the development of the clinical and histologic signs of allergic conjunctivitis, they may be useful for treating patients with ocular allergy.
authors.affiliation: National Eye Institute, National Institutes of Health, Bethesda, Maryland 20892-1863, USA.
authors.forename: S M
authors.initials: SM
authors.lastname: Whitcup
authors.forename: C C
authors.initials: CC
authors.lastname: Chan
authors.forename: A T
authors.initials: AT
authors.lastname: Kozhich
authors.forename: M T
authors.initials: MT
authors.lastname: Magone
mesh_terms: D000818:Animals; D019138:Antibodies, Blocking / Q000627:therapeutic use*; D000911:Antibodies, Monoclonal / Q000627:therapeutic use*; D002465:Cell Movement / Q000276:immunology; D003233:Conjunctivitis, Allergic / Q000276:immunology / Q000517:prevention & control*; D004359:Drug Therapy, Combination; D005260:Female; D006969:Hypersensitivity, Immediate / Q000517:prevention & control; D007150:Immunohistochemistry; D007249:Inflammation / Q000276:immunology / Q000473:pathology / Q000517:prevention & control; D018799:Intercellular Adhesion Molecule-1 / Q000276:immunology*; D007962:Leukocytes / Q000276:immunology; D016169:Lymphocyte Function-Associated Antigen-1 / Q000276:immunology*; D016131:Lymphocyte Subsets / Q000276:immunology / Q000473:pathology; D051379:Mice; D008815:Mice, Inbred Strains; D009504:Neutrophils / Q000276:immunology / Q000473:pathology; D013194:Staining and Labeling
chemical_list: D019138:Antibodies, Blocking; D000911:Antibodies, Monoclonal; D016169:Lymphocyte Function-Associated Antigen-1; C114320:anti-LFA-1 monoclonal antibody; D018799:Intercellular Adhesion Molecule-1