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Analysis of Aire Expression Panel A. Multicolor flow cytometric analysis of Aire expression in thymic medullary epithelial cells (mTECs) from wild type (Aire +/+) and knockout (Aire –/–) mice. Enriched preparation of mTECs prepared from wild type (Aire +/+; Left 2 Plots) and knockout (Aire –/–; Right 2 Plots) mice were fixed and permeabilized with BD Transcription Factor Buffer Set (Cat. No. 562574/562725). The cells were then stained with fluorescent antibodies specific for CD45, Ly51, and EpCAM, fluorescent Ulex europaeus agglutinin 1 (UEA1), FITC Anti-CD80 and either Alexa Fluor™ 647 Rat IgG2a κ Isotype Control (Cat. No. 557906) or Alexa Fluor™ 647 Rat Anti-Mouse Aire antibody (Cat. No. 567253) at 0.25 μg/test. Aire expression was evaluated after gating for CD45- EpCAM+ Ly51– UEA1+ cells (see reference J Immunol 2018 201:3244 for further details). The bivariate pseudocolor density plots showing the correlated expression of Aire (or Ig Isotype control staining) versus CD80 were derived from gated events with the forward and side light-scatter characteristics of intact mTECs. Flow cytometry and data analysis were performed using a BD FACSAria™ II Cell Analyzer System and BD FACSDiva™ Software. (The flow data figures were kindly provided by Dr. Mitsuru Matsumoto's laboratory). Panel B. Flow cytometric analysis of Aire expression in mouse Aire-transfected and -untransfected cells. The untransfected control 293F (dotted line histogram) and mouse Aire-transfected 293F (solid line histogram) cells were fixed and permeabilized with BD Transcription Factor Buffer Set. The cells were then stained with Alexa Fluor™ 647 Rat Anti-Mouse Aire antibody at 0.5 μg/test. Flow cytometric analysis was performed using a BD LSRFortessa™ X-20 Flow Cytometer System and FlowJo™ software. Data shown on this Technical Data Sheet are not lot specific.
BD Pharmingen™ Alexa Fluor™ 647 Rat Anti-Mouse AIRE
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Recommended Assay Procedures
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- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
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Companion Products
The MM-525 monoclonal antibody specifically recognizes mouse Aire (Autoimmune Regulator). This transcription factor is mainly expressed in the thymus, the primary lymphoid organ for T cell development. Aire expression is restricted to medullary thymic epithelial cells (mTECs). Aire induces the expression of a large variety of organ-specific self-antigens that are normally expressed in the peripheral tissues. mTECs participate in the negative selection of developing autoreactive T cells and the induction of regulatory T cells by presenting them with self-antigens in the context of MHC class I and class II molecules. In this way, mTECs play a vital role as self-antigen presenting cells in establishing immunological self-tolerance. A defect in the human AIRE gene causes a rare autosomal recessive systemic autoimmune disease called autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED). The MM-525 monoclonal antibody is useful for detecting Aire expression in mouse tissues, including medullary thymic epithelial cells.
Development References (2)
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Morimoto, J., Y. Nishikawa, et al. Aire Controls in Trans the Production of Medullary Thymic Epithelial Cells Expressing Ly-6C/Ly-6G.. J Immunol. 2018; 201:3244-3257. (Biology). View Reference
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Zhao, B., L. Chang, H. Fu, G. Sun, and W. Yang. The Role of Autoimmune Regulator (AIRE) in Peripheral Tolerance.. J Immunol Res. 2018; 3930750 . (Biology). View Reference
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