PMID- 11480584 OWN - NLM STAT- MEDLINE DCOM- 20020220 LR - 20191025 IS - 0190-2148 (Print) IS - 0190-2148 (Linking) VI - 27 IP - 5 DP - 2001 Jul-Aug TI - Pulmonary immunity to ragweed in a Beagle dog model of allergic asthma. PG - 433-51 AB - To create an allergy model in the dog, allergic Beagles with high levels of serum immunoglobulin E (IgE) and eosinophilia were bred; resulting puppies were sensitized to ragweed by intraperitoneal (IP) injection within 24 hours of birth through 22 weeks of age. At least 50% of the puppies developed high levels of serum IgE and eosinophilia. As young adults, 6 of these dogs, and 6 control age-matched, nonallergic, nonimmunized dogs were exposed by inhalation to ragweed twice at 13-day intervals, and a third time 45 days later. Total and ragweed-specific serum IgE and ragweed-specific serum IgG were increased significantly in allergic dogs relative to baseline. Allergic dogs had significantly greater levels of antibody specific for ragweed, as well as higher eosinophil counts in the bronchoalveolar lavage fluid, compared to nonallergic dogs. Airway reactivity to histamine in allergic, but not nonallergic dogs, increased significantly after aerosol exposure to ragweed. After a third exposure to ragweed, airway responses to histamine were elevated in the allergic dogs and remained high for at least 5 months. These results demonstrate the potential of the allergic dog model for investigating the underlying pulmonary immune mechanisms and therapeutic treatment of allergic asthma. FAU - Redman, T K AU - Redman TK AD - Lovelace Respiratory Research Institute, Albuquerque, New Mexico 87185-5890, USA. FAU - Rudolph, K AU - Rudolph K FAU - Barr, E B AU - Barr EB FAU - Bowen, L E AU - Bowen LE FAU - Muggenburg, B A AU - Muggenburg BA FAU - Bice, D E AU - Bice DE LA - eng PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PL - England TA - Exp Lung Res JT - Experimental lung research JID - 8004944 RN - 0 (Allergens) RN - 0 (Immunoglobulin G) RN - 0 (Plant Proteins) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Allergens/administration & dosage/*pharmacology MH - Animals MH - Asthma/chemically induced/*immunology/pathology MH - Bronchoalveolar Lavage Fluid/cytology/immunology MH - Cell Count MH - Disease Models, Animal MH - Dogs MH - Eosinophils/cytology MH - Immunity MH - Immunoglobulin E/analysis MH - Immunoglobulin G/analysis MH - Lung/*immunology/pathology MH - Neutrophils/cytology MH - Plant Proteins/administration & dosage/pharmacology EDAT- 2001/08/02 10:00 MHDA- 2002/02/21 10:01 CRDT- 2001/08/02 10:00 PHST- 2001/08/02 10:00 [pubmed] PHST- 2002/02/21 10:01 [medline] PHST- 2001/08/02 10:00 [entrez] AID - 10.1080/019021401300317143 [doi] PST - ppublish SO - Exp Lung Res. 2001 Jul-Aug;27(5):433-51. doi: 10.1080/019021401300317143.