The high-affinity IgE receptor (FcepsilonRI)-beta gene is one of the atopy-associated genes, but its biological significance is largely unknown. In this study, we generated the anti-FcepsilonRI-beta chain antibody to clarify beta-chain protein expression in human mast cells. The FcepsilonRI-beta antibody showed specific binding to a 27 kDa protein with Western blotting and membrane bound immunostaining using cultured mast cells. Monomeric IgE sensitization increased beta-chain expression as well as mature alpha-chain expression in mast cells. Upregulation of beta-chain expression with monomeric IgE treatment suggests possible roles of FcepsilonRI-beta protein as an atopy-related molecule.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2583255 | PMC |
| http://dx.doi.org/10.1016/j.jim.2008.05.006 | DOI Listing |
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