Serum soluble interleukin-2 receptor (sIL-2R) levels in patients with connective tissue disease (CTD) were measured by sandwiched ELISA.

• 应用夹心法ELISA检测了正常人、混合性结缔组织病(MCTD)、系统性红斑狼疮(SLE)、类风湿性关节炎(RA)、系统性硬皮病患者血清可溶性白细胞介素-2受体(SIL-2R)水平。