International Immunology, Vol. 14, No. 4, pp. 401-409,
April 2002
© 2002 Japanese Society for Immunology
Lipocalin allergen Bos d 2 is a weak immunogen
Departments of 1 Clinical Microbiology and 2 Chemistry, University of Kuopio, 70211 Kuopio, Finland 3 Medical School, University of Tampere, 33014 Tampere, Finland
Correspondence to: T. Virtanen; E-mail: Tuomas.Virtanen{at}uku.fi
Transmitting editor: S. Romagni
The immunological characteristics of an important group of animal-derived allergens, lipocalins, are poorly known. To explore the immunology of the lipocalin allergen Bos d 2, several mouse strains with different H-2 haplotypes were immunized with the allergen. Only the BALB/c mouse mounted a distinct humoral response against Bos d 2. The proliferative spleen cell responses of all mouse strains remained very weak. Further experiments with BALB/c mice confirmed that Bos d 2 is a weak inducer of both humoral and cellular responses, and that the responses were weaker than with the control antigens hen egg lysozyme (HEL) and tetanus toxoid. IgG subclass analyses showed that Bos d 2 was prone to favor the Th2 response. Although s.c. immunization using complete Freunds adjuvant favored the Th1-deviated immune response by lymph node cells, Bos d 2 was able to induce the production of IL-4 while the control antigen HEL did not. Epitope mapping revealed that BALB/c mice recognized one immunodominant epitope in Bos d 2, almost identical to that recognized by humans. The epitope was shown to be immunogenic in subsequent experiments. However, further studies are needed to clarify the significance of priming and stimulation doses of the immunodominant and other epitopes in Bos d 2 for the outcome of immune response against the allergen. The murine immune response against Bos d 2 closely resembled that observed in humans. The weak immunogenicity of Bos d 2 may be associated with its allergenicity.
Keywords: allergenicity, animal allergen, cytokine production, epitope mapping, immune response, immunogenicity
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
A. Immonen, S. Farci, A. Taivainen, J. Partanen, S. Pouvelle-Moratille, A. Narvanen, T. Kinnunen, S. Saarelainen, M. Rytkonen-Nissinen, B. Maillere, et al. T Cell Epitope-Containing Peptides of the Major Dog Allergen Can f 1 as Candidates for Allergen Immunotherapy J. Immunol., September 15, 2005; 175(6): 3614 - 3620. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Jankovic, M. C. Kullberg, P. Caspar, and A. Sher Parasite-Induced Th2 Polarization Is Associated with Down-Regulated Dendritic Cell Responsiveness to Th1 Stimuli and a Transient Delay in T Lymphocyte Cycling J. Immunol., August 15, 2004; 173(4): 2419 - 2427. [Abstract] [Full Text] [PDF] |
||||
