High-throughput screening for native autoantigen-autoantibody complexes using antibody microarrays.
High-throughput screening for native autoantigen-autoantibody complexes using antibody microarrays.
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DOI:
10.1021/pr4001674
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发表时间:
2013-05-03
影响因子:
4.4
通讯作者:
Lampe PD
中科院分区:
文献类型:
--
作者:
Rho JH;Lampe PD
We report on a novel, high-dimensional method to detect autoantibodies that are complexed with their natural autoantigens. Specifically, autoantibody-autoantigen complexes in serum or plasma are directly incubated onto a high-density antibody microarray. Detection of the bound autoantibody-antigen complex is made via fluorescently labeled anti-human immunoglobulin G or other immunoglobulin isotype secondary antibodies and quantification in a microarray scanner. Uncomplexed antibodies do not interfere with this assay. The whole process is very rapid and applicable for high-throughput screening without the need for production of proteins or immunoglobulin purification from the samples. Using these methods, we found that plasma from healthy individuals contains hundreds of autoantibodies complexed with cellular proteins. Thus, this highly sensitive, multiplex method is capable of discovering new autoantibody-antigen or circulating immune complexes many of which will likely be useful for disease detection and characterization.
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DOI:
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