Laboratory Animal and Comparative Medicine ›› 2013, Vol. 33 ›› Issue (6): 433-438.DOI: 10.3969/j.issn.1674-5817.2013.06.004

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Development of Liquid Suspension Chip of Rabbit Immune Globulins and Flexible Multi-analyte Profiling

CAI Yue-qin, XU Jian-qin, XU Xiao-ping, WANG De-jun, HUANG Yu, WU Wei, CHEN Min-li   

  1. Laboratory Animal Research Center, Zhejiang Chinese Medical University , Hangzhou 310053, China
  • Received:2013-05-07 Online:2013-12-25 Published:2013-12-25

Abstract: Objective To establish flexible multi-analyte profiling (xMAP) in rabbit immune globulins using the Luminex liquid suspension array system. Methods The rabbit IgG, IgM and IgA affinity capture antibody was conjugated to different fluorescent encoded microspheres, respectively. The conjuctional capacity of rabbit IgG, IgM and IgA coupling antibody was optimized, and the liquid suspension chip of rabbit IgG, IgM and IgA was developed. The simultaneous measurement of multiple immune globulins in WHBE and JW rabbit was semi-quantitative detected by xMAP in liquid suspension array system. And verify the rabbit immune globulins results by ELISA analysis. Results (1) The optimal conjuctional capacity of rabbit IgG, IgM and IgA coupling antibody was 10 μg, 20 μg and 15 μg, respectively. (2) IgG, IgM and IgA in WHBE rabbit and JW rabbit were simultaneously detected by xMAP technology. IgG and IgM in WHBE rabbit were significantly lower than JW rabbit (P<0.05), and IgA in WHBE rabbit was significantly higher than JW rabbit (P<0.01). Meanwhile, IgG, IgM and IgA in WHBE rabbit and JW rabbit was respectively analyzed by ELISA method. IgG and IgM in WHBE rabbit were significantly lower than JW rabbit (P<0.05, P<0.01), and IgA in WHBE rabbit was significantly higher than JW rabbit (P<0.01). Conclusion The xMAP for semi-quantitative detecting rabbit immune globulins has been successfully established. And all the results were consistent with the ELISA results.

Key words: Immune globulins, Liquid suspension chip, xMAP, Rabbit