PMID- 2246148 OWN - NLM STAT- MEDLINE DCOM- 19910108 LR - 20171213 IS - 8750-7587 (Print) IS - 0161-7567 (Linking) VI - 69 IP - 3 DP - 1990 Sep TI - Late pulmonary allergic responses in actively but not passively IgE-sensitized rats. PG - 1012-21 AB - Previous studies suggested that although rats that were passively sensitized [monoclonal murine immunoglobulin E (IgE)] would respond to pulmonary antigen challenge with an immediate increase in resistance, they exhibited no late increases in resistance, unlike late changes in rats actively sensitized to preferentially produce IgE antibody. We hypothesized that passively sensitized rats also would not develop antigen-induced pulmonary inflammation. In a blinded protocol we compared immediate responses and pulmonary resistance and inflammation at 8, 19 and 24 h after challenge with placebo antigen, with dinitrophenol-bovine serum albumin (DNP-BSA) to elicit a passively sensitized response, or with ovalbumin (OA) to elicit an actively sensitized response. Despite similar immediate responses to OA and DNP-BSA, only the rats challenged with OA had marked inflammatory changes and a significant incidence of late elevations in resistance. Inflammation scores and lung resistance were significantly correlated only in the OA group. We also observed that anesthesia with fentanyl/droperidol significantly attenuated the immediate but not the late responses to antigen challenge, compared with rats anesthetized with ketamine. We conclude that IgE-mediated immediate responses to pulmonary antigen challenge are insufficient, and may be unnecessary, to initiate antigen-induced late inflammatory changes. FAU - Sorkness, R AU - Sorkness R AD - Department of Medicine and Pediatrics, School of Medicine, University of Wisconsin, Madison 53706. FAU - Johns, K AU - Johns K FAU - Castleman, W L AU - Castleman WL FAU - Lemanske, R F Jr AU - Lemanske RF Jr LA - eng GR - 1-K08-HL-01147-01/HL/NHLBI NIH HHS/United States GR - AI-10404/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Appl Physiol (1985) JT - Journal of applied physiology (Bethesda, Md. : 1985) JID - 8502536 RN - 0 (Dinitrophenols) RN - 27432CM55Q (Serum Albumin, Bovine) RN - 37341-29-0 (Immunoglobulin E) RN - 9006-59-1 (Ovalbumin) SB - IM MH - Airway Resistance/physiology MH - Animals MH - Dinitrophenols/pharmacology MH - Immunization MH - Immunization, Passive MH - Immunoglobulin E/*immunology MH - Ovalbumin/immunology MH - Rats MH - Rats, Inbred Strains MH - Respiratory Function Tests MH - Respiratory Hypersensitivity/*physiopathology MH - Serum Albumin, Bovine/immunology EDAT- 1990/09/01 00:00 MHDA- 2001/03/28 10:01 CRDT- 1990/09/01 00:00 PHST- 1990/09/01 00:00 [pubmed] PHST- 2001/03/28 10:01 [medline] PHST- 1990/09/01 00:00 [entrez] AID - 10.1152/jappl.1990.69.3.1012 [doi] PST - ppublish SO - J Appl Physiol (1985). 1990 Sep;69(3):1012-21. doi: 10.1152/jappl.1990.69.3.1012.