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首页> 外文期刊>Infection and immunity >Detection and Characterization of Defective Mycoplasmacidal Antibody Produced by Rodents Against Mycoplasma arthritidis
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Detection and Characterization of Defective Mycoplasmacidal Antibody Produced by Rodents Against Mycoplasma arthritidis

机译:鼠支原体支原体产生的缺陷型支原体酸性抗体的检测与鉴定

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A procedure has been developed for the detection of mycoplasmacidal antibody in the serum of rats and mice infected with Mycoplasma arthritidis. Antibody activity can apparently be measured only by using resting mycoplasma cells. The reaction is complement dependent and is usually complete within 3 h. Early antibody (5 days) could be detected only within the immunoglobulin (Ig)M fraction, whereas late antibody (42 days) is found within the IgG fraction. The mycoplasmacidal antibody was highly specific and cross reactions were not observed with other mycoplasma species. Antibody activity could be removed from serum by absorption with either viable or nonviable M. arthritidis. Cidal antibody produced by rats against other mycoplasma species was active against both resting and multiplying cells. Mycoplasmacidal antibody against M. arthritidis was detected in rats 2 days after injection of the organisms and persisted at least through 300 days. Mice usually developed antibodies by 3 days after injection of the organisms and moderate titers have been observed for as long as 487 days. Since viable mycoplasmas can persist in the peripheral circulation in the presence of antibody, it is likely that viable mycoplasma-antibody complexes are also present.
机译:已经开发了一种检测感染了支原体的大鼠和小鼠血清中支原体酸性抗体的方法。显然,只有使用静止的支原体细胞才能测定抗体的活性。反应取决于补体,通常在3小时内完成。早期抗体(5天)只能在免疫球蛋白(Ig)M部分中检测到,而晚期抗体(42天)则在IgG部分中检测到。支原体酸性抗体具有高度特异性,未与其他支原体物种发生交叉反应。可以通过用有活力或无活力的 M吸收从血清中去除抗体活性。大鼠产生的针对其他支原体物种的杀灭性抗体对静止细胞和增殖细胞均具有活性。抗 M的支原体酸性抗体。注射生物体后2天,在大鼠中检测到关节炎,并持续至少300天。小鼠通常在注射生物体后3天就会产生抗体,并且观察到中效价长达487天。由于活的支原体可以在存在抗体的情况下持续存在于外周循环中,因此也可能存在活的支原体-抗体复合物。

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