Abstract
Interleukin-12 (IL-12) secreted from macrophages or dendritic cells plays an important role in the protection against intracellular pathogens as well as the developmental commitment of T helper 1 cells. IL-12 exerts its biological effects through binding to specific IL-12 receptors (IL-12Rs) termed IL-12Rβ1 and IL 12Rβ2. In this paper, we performed association studies between the three reported polymorphisms (Q214R, M365T and G378R) of the IL-12Rβ1 gene or the newly identified polymorphisms (P238L, IVS9 −7G>A, IVS13 –121G>A, A643T, P779P and c.3283T>G) of the IL-12Rβ2 gene, and the development of type 1 diabetes or atopic asthma as representative Th1- and Th2- dominant diseases, respectively. The association study of each polymorphism of the IL-12Rβ1 or IL-12Rβ2 gene and type 1 diabetes or asthma showed that these IL-12R genes did not contribute to the development of type 1 diabetes or asthma in the Japanese population. Further analysis in individuals with susceptibility to intracellular pathogens may elucidate the importance of the IL-12R genes.
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Acknowledgements
This work was supported by a Grant-in Aid for Scientific Research (B) from the Ministry of Education, Culture, Sports, Science, and Technology of Japan, and a grant from the Japan Study Group for Pediatric and Adolescent Diabetes.
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Bassuny, W.M., Ihara, K., Kimura, J. et al. Association study between interleukin-12 receptor β1/β2 genes and type 1 diabetes or asthma in the Japanese population. Immunogenetics 55, 189–192 (2003). https://doi.org/10.1007/s00251-003-0568-7
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DOI: https://doi.org/10.1007/s00251-003-0568-7