Application of anticaspase 14 antibody in preparation of rheumatoid arthritis supplementary diagnosis product

The invention discloses an application of an anticaspase 14 antibody in preparation of a rheumatoid arthritis supplementary diagnosis product, the anticaspase 14 antibody is used as a marker, and the product is used for detecting the content of the anticaspase 14 antibody. The research finds that the level of the anti-caspase 14 antibody in the serum of a rheumatoid arthritis patient is obviously higher than that of other common rheumatism immune disease patients and normal people which are easily confused with rheumatoid arthritis, and good diagnosis efficiency is achieved. Besides, the anti-caspase 14 antibody can effectively overcome the defects that the positive rate of autoantibodies commonly used for diagnosis at present is low, and 1/3 patients are negative, and the anti-caspase 14 antibody has good supplementary diagnosis value for diagnosis of rheumatoid arthritis. 本发明公开了抗caspase 14抗体在制备类风湿关节炎补充诊断产品中的应用，所述抗caspase 14抗体作为标志物，所述产品用于检测抗caspase 14抗体含量。本发明研究发现，类风湿关节炎患者血清中抗caspase 14抗体水平显著高于其他常见的易与类风湿关节炎混淆