PMID- 12573914 OWN - NLM STAT- MEDLINE DCOM- 20030513 LR - 20181113 IS - 0091-6765 (Print) IS - 0091-6765 (Linking) VI - 111 IP - 2 DP - 2003 Feb TI - Identification of antigenic epitopes on human allergens: studies with HLA transgenic mice. PG - 245-50 AB - Environmental factors play an important role in the rise and manifestation of allergic conditions in genetically predisposed subjects. Increased exposure to indoor/outdoor allergens is a significant factor in the development of allergic sensitization and asthma. Recently, strong relationships between the immune response to several highly purified allergens and specific human leukocyte antigen (HLA)-DQ and -DR haplotypes have been reported. The major antigens from clinically important allergens have been cloned and sequenced. However, whether innate structural features of major allergens or peculiar immune recognition of these molecules contribute to the overly robust immune responses is not known. We generated and used transgenic (tg) mice expressing single HLA class II transgene(s) to characterize the allergen epitopes presented by particular HLA class II molecules. Next, we generated in vivo models for asthma in the HLA tg mice by intranasal challenge with allergenic extracts. Furthermore, we used a single epitope to induce an allergic lung inflammation. Our system offers a sophisticated technique for systematically identifying the genetic (individual human class II) and antigenic (individual allergenic epitopes) basis of asthma sensitivity and has important implications for new treatment strategies. FAU - Chapoval, Svetlana P AU - Chapoval SP AD - Department of Immunology, Mayo Clinic, Rochester, Minnesota 55905, USA. FAU - David, Chella S AU - David CS LA - eng GR - AI 14764/AI/NIAID NIH HHS/United States GR - CA09127/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Environ Health Perspect JT - Environmental health perspectives JID - 0330411 RN - 0 (Allergens) RN - 0 (Epitopes) RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DR Antigens) SB - IM MH - Allergens/immunology MH - Animals MH - Asthma/etiology/*genetics/immunology MH - Disease Models, Animal MH - Epitopes MH - *Genetic Predisposition to Disease MH - HLA-DQ Antigens/*genetics/immunology MH - HLA-DR Antigens/*genetics/immunology MH - Humans MH - Mice MH - Mice, Transgenic PMC - PMC1241359 EDAT- 2003/02/08 04:00 MHDA- 2003/05/14 05:00 PMCR- 2003/02/01 CRDT- 2003/02/08 04:00 PHST- 2003/02/08 04:00 [pubmed] PHST- 2003/05/14 05:00 [medline] PHST- 2003/02/08 04:00 [entrez] PHST- 2003/02/01 00:00 [pmc-release] AID - 10.1289/ehp.5706 [doi] PST - ppublish SO - Environ Health Perspect. 2003 Feb;111(2):245-50. doi: 10.1289/ehp.5706.