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首页> 外文期刊>Journal of Cell Adhesion >A Novel Utility for an Old Method: The Leukocyte Adherence Inhibition Test Is an Easy Way to Detect the Immunoreactive Interference of the Collection Tube Anticoagulant on Cellular Immunoassays
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A Novel Utility for an Old Method: The Leukocyte Adherence Inhibition Test Is an Easy Way to Detect the Immunoreactive Interference of the Collection Tube Anticoagulant on Cellular Immunoassays

机译:一种适用于旧方法的新型实用程序:白细胞粘附抑制测试是一种检测细胞免疫测定中收集管抗凝剂免疫反应性干扰的简便方法

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The leukocyte adherence inhibition (LAI) test was designed to evaluate the presence of cellular immunoreactivity against specific antigens and is highly sensitive to analytical interference. To compare the performance of the LAI test among plasmas obtained with different anticoagulants, 36 blood samples of allergic subjects were divided into three tubes with heparin, sodium citrate, and EDTA. The adherence was assessed with the hemocytometer technique. The mean adherence of each group was compared as well as the number of tests with inappropriate adherence (<25%). Of the 36 tests, there were 4, 9, and 21 with inappropriate adherence in the groups of heparin, citrate, and EDTA, respectively. Of these last, 5 samples also did not demonstrate proper adherence with sodium citrate and 1 sample did not show proper adherence with any anticoagulant. The anticoagulant in the collection tube can elicit a specific immune response, becoming an interferent for the LAI test. In this case, there is the possibility of redoing the test using another anticoagulant. Performed with different anticoagulants, the LAI test may be used as a preanalytical tool for choosing the less immunoreactive anticoagulant for more complex immunoassays.
机译:白细胞粘附抑制(LAI)测试旨在评估针对特定抗原的细胞免疫反应性的存在,并且对分析干扰高度敏感。为了比较在使用不同抗凝剂获得的血浆中进行LAI测试的性能,将36名过敏性受试者的血液样本分为三支分别含肝素,柠檬酸钠和EDTA的试管。用血细胞计数器技术评估依从性。比较了每组的平均依从性以及不当依从性的测试次数(<25%)。在这36项测试中,分别有4、9和21种肝素,柠檬酸盐和EDTA依从性不良。在这些最后的样品中,有5个样品也未显示与柠檬酸钠的适当粘附性,而1个样品未显示与任何抗凝剂的适当粘附性。收集管中的抗凝剂可引起特异性免疫反应,成为LAI测试的干扰物。在这种情况下,可能会使用其他抗凝剂重新进行测试。使用不同的抗凝剂进行的LAI测试可以用作分析前的工具,以选择免疫反应性较低的抗凝剂进行更复杂的免疫测定。

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