活动性肺结核患者血清sIL－2R与抗PPD抗体的相关性

应用ＥＬＩＳＡ检测了正常人和肺结核患者的血清可溶性白细胞介素２受体（ｓＩＬ－２Ｒ）和抗ＰＰＤ抗体水平。结果表明，活动性肺结核患者的血清ｓＩＬ－２Ｒ和抗ＰＰＤ抗体呈正相关（γ＝０．４３３，Ｐ＜０．００１），而且两者的水平明显高于正常对照组；抗ＰＰＤ抗体阳性的活动性肺结核患者血清中ｓＩＬ－２Ｒ浓度明显高于抗体阴性患者，提示血清ｓＩＬ－２Ｒ浓度测定可以反映肺结核患者细胞免疫功能状态。     

肺结核患者血清可溶性白细胞介素－2受体检测的临床意义

应用夹心法ＥＬＩＳＡ测定肺部疾病患者血清可溶性白细胞介素２－受体（ｓＩＬ－２Ｒ），结果表明，进展期肺结核及急性肺炎患者血清ｓＩＬ－２Ｒ较正常对照组的明显升高，进展期肺结核及好转期肺结核患者血清ｓＩＬ－２Ｒ，较稳定期肺结核患者的增高（Ｐ＜０．０１）。进展期肺结核患者血清ｓＩＬ－２Ｒ的高低与肺部病灶大小有关。经抗结核化疗后，进展期肺结核患者血清ｓＩＬ－２Ｒ降低或无改变。与Ｘ线胸片和／或痰菌改变一致，提示测定肺结核患者血清ｓＩＬ－２Ｒ，有助于对进展期肺结核患者疾病活动性的判断。     

sIL－2R在肝癌患者血清中的高度表达

本文应用ＥＬＩＳＡ双抗体夹心法检测了正常人和早期、晚期肝癌患者血清中可溶性白细胞介素－２受体（ｓＩＬ－２Ｒ）水平。结果表明：肝癌患者血清ｓＩＬ－２Ｒ水平明显高于正常人（Ｐ＜０．０１）．早期肝癌患者治疗前后其ｓＩＬ－２Ｒ水平差异显著（Ｐ＜０．０５），从而提示血清中ｓＩＬ－２Ｒ高表达现象可能为肝癌早期诊断、疗效判断及病情转归提供重要的参考价值；同时提供了本地区人血清中ｓＩＬ－２Ｒ水平正常参考标准。     

人胎儿脾胸腺细胞培养上清sIL－2R的分析

应用ＥＬＩＳＡ双抗体夹心法分析了不同胎龄脾、胸腺细胞培养上清和血清ｓＩＬ－２Ｒ的变化。结果显示：（１）胎儿脾、胸腺细胞体外在ｒＩＬ－２和抗ＣＤ３刺激下，上清中可产生高水平的ｓＩＬ－２Ｒ。并且随培养时间的延长显著增高（Ｐ＜０．０１）；（２）胎儿脾细胞培养上清ＳＩＬ－２Ｒ明显高于胸腺（Ｐ＜０．０１）；（３）胎儿血清ｓＩＬ－２Ｒ显著高于成人，并随胎龄的增大逐步下降．胎龄与ｓＩＬ－２Ｒ水平呈负相关。结果提示：ｓＩＬ－２Ｒ不仅是胎儿淋巴细胞活化的标志，还可能在淋巴细胞分化、成熟过程中发挥免疫调节作用。胎儿血清ｓＩＬ－２Ｒ增高并随胎龄成熟而下降，推测可能参与胚胎期免疫耐受。     

肝硬化患者血清透明质酸含量与sIL－2R水平的观察

本文用放射免疫测定法及双抗体夹心法测定了２５例健康人，３０例肝硬化患者血清透明质酸（ＨＡ）的含量及可溶性白细胞介素２受体（ｓＩＬ－２Ｒ）水平。结果表明：（１）肝硬化组血清ＨＡ含量及ｓＩＬ－２Ｒ水平均高于对照组（Ｐ值均＜０．０１）；（２）肝硬化组血清ＨＡ与ｓＩＬ－２Ｒ水平间呈正相关关系（ｒ＝０．５１９２，Ｐ＜０．０１）。提示：肝硬化组患者血清ｓＩＬ－２Ｒ水平增高与肝损害程度有关，可能是由于肝细胞受损而对ＳＩＬ－２Ｒ清除能力降低所致。     

急性早幼粒细胞白血病患者诱导分化治疗前后血清IL—2受体的…

ＥＬＩＳＡ法检测２７例急性早幼粒细胞白血病患者（ＡＰＬ）血清白细胞介素２受体（ｓＩＬ－２Ｒ）水平。结果表明ＡＰＬ患者血清ｓＩＬ－２Ｒ高于正常对照（Ｐ〈０．０１），经维甲酸治疗后逐渐降低，但治疗中期患者血清ｓＩＬ－２Ｒ仍高于正常和治疗后（缓解期）患者血清ｓＩＬ－２Ｒ（Ｐ〈０．０５）。治疗后血清ｓＩＬ－２Ｒ虽略高于正常对照。却已恢复正常范围（Ｐ〈０．０５）。同时发现治疗中ＷＢＣ却明显升高，治疗后又下降     

多发性硬化患者血清sIL-6R 水平观察

为探讨可溶性白细胞介素－６受体（ｓＩＬ－６Ｒ）在多发性硬化（ＭＳ）发生、发展中的作用，采用双抗体夹心ＥＬＩＳＡ方法，对２８例ＭＳ患者和２５例正常对照组血清ｓＩＬ－６Ｒ水平进行了测定。结果显示缓解－复发型和进展型ＭＳ患者血清ｓＩＬ－６Ｒ水平明显高于正常对照组和良性型组（Ｐ＜０．０５，Ｐ＜０．０１）；而良性型ＭＳ患者血清ｓＩＬ－６Ｒ水平与正常对照组相比，未见明显改变。缓解－复发型ＭＳ患者血清ｓＩＬ－６Ｒ水平随着病情的好转而下降。ｓＩＬ－６Ｒ水平与ＭＳ患者头颅ＭＲＩ上的病灶大小和部位无明显相关性（ｒ１＝０．１２４，Ｐ＞０．０５；ｒ２＝０．０９１，Ｐ＞０．０５）。推测ｓＩＬ－６Ｒ水平的高低可作为判断ＭＳ患者病情变化的指标之一。     

尿路感染患者血清和尿sIL—2R水平的变化及其意义

应用ＥＬＩＳＡ双抗体夹心法检测尿路感染（ＵＴＩ）患者血清和尿ｓＩＬ－２Ｒ水平。结果显示：①膀胱炎患者血清和尿ｓＩＬ－２Ｒ水平显著低于健康人（Ｐ〈０．０５），提示免疫细胞功能低下可能产ＵＴＩ的易感因素之一。②急性肾盂肾炎（ＡＰＮ）患者血清和尿ｓＩＬ－２Ｒ水平显著高于健康人（Ｐ〈０．０５），提示Ｔ细胞参与了ＡＰＮ机体防御。③慢性肾盂肾炎（ＣＰＮ）患者血清ｓＩＬ－２Ｒ水平显著高于ＡＰＮ组和健康人（分别为     

伤寒患者血清TNF,IL—2,sIL—2R水平的研究

为了解肿瘤坏死因子（ＴＮＦ）、白细胞介素２（ＩＬ－２）和可溶性白细胞介素２受体（ｓＩＬ－２Ｒ）在伤寒发病中的作用，以双抗体夹心法检测２７例伤寒患者及１６例正常人血清ＴＮＦ、ＩＬ－２和ｓＩＬ－２Ｒ水平。结果发现，伤寒患者血清ＴＮＦ水平和ｓＩＬ－２Ｒ水平均明显高于正常人水平（Ｐ＜０．０１）。而血清ＩＬ－２水平显著低于正常对照（Ｐ＜０．０１）。对１５例伤寒患者各病期血清ＴＮＦ、ＩＬ－２和ｓＩＬ－２Ｒ水平动态观察发现伤寒患者血清ＴＮＦ、ｓＩＬ－２Ｒ水平动态变化与患者体温、病期、病情变化具有密切关系。伴肝功能损伤和有诸如消化道出血、肺炎、急性肾衰等并发症及复发性伤寒的患者其血清ＴＮＦ、ｓＩＬ－２Ｒ水平明显高于无肝功能损伤及无并发症的患者。结果提示，临床检测伤寒患者血清ＴＮＦ、ｓＩＬ－２Ｒ除可协助诊断外，对于患者病情、病期、预后的判断及治疗效果的观察均具有重要意义，因此可作为临床观察伤寒病情及判断预后的监测指标。血清ＩＬ－２检测对于伤寒的诊断有一定帮助，但作为判断临床病情、病期及预后的指标意义不大     

人巨细胞病毒感染对肾移植受者血清sIL－2R水平的影响

用ＰＣＲ检测ＨＣＭＶ－ＤＮＡ，ＥＬＩＳＡ法检测ＨＣＭＶ－ＩｇＭ及ＩｇＧ，以诊断肾移植受者ＨＣＭＶ感染。用双抗体夹心法ＥＬＩＳＡ检测６５例肾移植受者血清ｓＩＬ－２Ｒ水平，结果表明：ＨＣＭＶ感染后宿主血清ｓＩＬ－２Ｒ水平明显增高（Ｐ＜０．０１），且ＨＣＭＶ疾病组ｓＩＬ－２Ｒ增高程度大于无症状感染组（Ｐ＜０．０１）；６例原发性ＨＣＭＶ感染者ｓＩＬ－２Ｒ水平与ＩｇＭ水平呈正相关（ｒ＝０．９９０８），提示随感染程度增加，血清ｓＩＬ－２Ｒ水平随之增高，还发现血清ｓＩＬ－２Ｒ水平与Ｃ９４／ＣＤ８比值是负相关（ｒ＝－０．９７８９），说明ＨＣＭｖ感染后ｓＩＬ－２Ｒ水平增高与Ｔ细胞亚群改变有关，反之也说明ｓＩＬ－２Ｒ增高程度可表明体内免疫抑制状态。对于ＨＣＭＶ感染后血清ｓＩＬ－２Ｒ水平增高的机理有待进一步探讨。     

SPA-ELISA在结核病血清学诊断中的初步应用

应用SPA-ELISA检测94例活动性肺结核患者和53例非结核患者及125名健康人血清中的抗PPD-IgG水平。结果显示结核患者特异性抗体水平显著高于对照组(P<0.01)。如OD值以0.21(+2SD)作为活动性肺结核的阳性判定标准,则本法敏感性为86.2％,特异性为96.0％,提示可作为活动性肺结核的辅助诊断方法,并可用酶联SPA取代酶联羊抗人IgG。     

巨细胞病毒感染与可溶性白细胞介素2受体的关系

应用酶联免疫吸附试验（ＥＬＩＳＡ）对１０４例育龄妇女的血清进行了巨细胞病毒（ＨＣＭＶ）ＩｇＧ、ＩｇＭ抗体的检测，同时用ＥＬＩＳＡ双抗体夹心法测定了不同感染状态下血清中可溶性白细胞介素２受体（ｓＩＬ－２Ｒ）的水平，并将ｓＩＬ－２Ｒ水平与未感染ＨＣＭＶ的正常育龄妇女进行了比较。结果，育龄妇女中抗－ＨＣＭＶＩｇＧ的阳性率为８９．４％，ＩｇＭ的阳性率为９．６％，感染ＨＣＭＶ的妇女血清中ｓＩＬ－２Ｒ水平均大于未感染的对照组（１７８．１±５７．３Ｕ／ｍｌ），Ｐ＜０．０５，其中ＩｇＭ阳性者和ＩｇＭ、ＩｇＧ同时阳性者血清中ｓＩＬ－２Ｒ水平最高，分别为９１０±４６５．６Ｕ／ｍｌ和９０５±３４７．８Ｕ／ｍｌ，两者间的差异无显著性意义（Ｐ＞０．０５），但均大于仅抗－ＨＣＭＶＩｇＧ阳性者（４４６．８±１５８．９Ｕ／ｍｌ），Ｐ均＜０．０５。表明，ＨＣＭＶ感染可致ｓＩＬ－２Ｒ水平升高，并且活动性感染者上升明显。提示：ｓＩＬ－２Ｒ可能参与了ＨＣＭＶ的免疫致病机制。     

The significance of soluble IL-2 receptors in rheumatoid arthritis with interstitial pneumonia]

Interstitial pneumonia is well known as one of the complications of rheumatoid arthritis (RA). While interleukin-2 (IL-2) regulates the immune response through IL-2 receptor (IL-2R), the exact role of the soluble form of IL-2R (sIL-2R), recognized as a part of the alpha chain or IL-2R, is still obscure. So, the immunological significance of sIL-2R in serum and in bronchoalveolar lavage fluid (BALF) of those of RA patients with or without interstitial pneumonia was studied. The sIL-2R was measured with an ELISA kit (T-Cell Science Ltd). The levels of sIL-2R in the sera of RA patients without interstitial pneumonia were significantly higher than those of normal controls. Furthermore, the levels of sIL-2R showed a statistically significant correlation with ESR and Lansbary's index. The levels of sIL-2R of RA patients with interstitial pneumonia were higher than in those without interstitial pneumonia although the evaluation of class and stage of arthritis in those RA patients with or without interstitial pneumonia revealed no significant difference. A high sIL-2R/albumin ratio in BALF of RA patients with interstitial pneumonia was shown in comparison with those of normal control. These data indicate that the estimation of sIL-2R in RA patients could be useful in estimating the disease activity and that high levels of sIL-2R reflect the active immune response in the lungs of RA patients with interstitial pneumonia.     

Soluble interleukin-2 receptors in plasma cell dyscrasias

Levels of the soluble form of the interleukin-2 receptor (sIL-2R) were evaluated in the peripheral blood of 69 patients with plasma cell dyscrasias. A close relationship was seen between serum sIL-2R levels and clinical features. Among patients with normal BUN and creatinine levels, the mean (+/- 1SD) level of sIL-2R in 44 patients with multiple myeloma (MM) was higher than that of normal controls (457 +/- 227 U/ml vs 288 +/- 124 U/ml, P = 0.01). The mean level of sIL-2R in eight patients with primary macroglobulinemia was 722 +/- 251 U/ml. In MM, those with active or refractory disease showed a significantly higher mean level of sIL-2R than those in the remission phase (577 +/- 240 U/ml vs 335 +/- 103 U/ml, P = 0.01). There was a negative correlation between sIL-2R and hemoglobin levels in MM patients (r = -0.45, P = 0.01). Five patients with complications of renal insufficiency had elevated levels of sIL-2R. In a longitudinal study of a patient with plasmacytoma and an extremely high sIL2-R level, the sIL-2R level showed a strong relationship with tumor burden. Patients with high sIL-2R levels generally had a poor prognosis than those with normal levels. Thus a high sIL-2R level may be an indicator of a poor prognosis in MM.     

The levels of IL-1β and soluble IL-1 receptors in patients with IgG4-related periaortitis/periarteritis

PurposeIgG4-related disease (IgG4-RD) is a chronic fibrotic inflammatory and an immune-mediated disease characterized by high serum IgG4 concentration and IgG4-bearing plasma cell infiltration in affected organs. IgG4-related periaortitis/periarteritis is a recently identified disease entity in IgG4-RD that affects the cardiovascular system, and its pathogenesis and characteristics remain unclear.The inflammatory cytokine IL-1β is involved in a variety of cellular activities including inflammation, fibrosis, and angiogenesis. The present study compared the levels of the inflammatory cytokine IL-1β and two soluble IL-1 receptors, IL-1R1 and IL-1R2, between IgG4-RD patients with and without IgG4-related periaortitis/periarteritis.MethodsThe patients with IgG4-related periaortitis/periarteritis (n ?= ?38), those without (n ?= ?66) and healthy (n ?= ?33) were recruited to measure cytokines of IL-1β and soluble receptors (sIL-1R1 and sIL-1R2) in sera by ELISA assay.ResultsSerum IgG4 was significantly higher in patients with periaortitis/periarteritis compared to non-periaortitis/periarteritis (p ?= ?0.0074), while serum IL-1β was significantly lower in patients with periaortitis/periarteritis (p ?= ?0.00037).The three groups did not show significant difference in sIL1-R1, while sIL-1R2 in the periaortitis/periarteritis and healthy group was higher than in the group without periaortitis/periarteritis (p ?= ?0.00001).ConclusionsThe characteristic changes in IL-1β, sIL-1R1, and sIL-1R2 levels in IgG4-RD patients with and without IgG4-related periaortitis/periarteritis may indicate an active phase of the inflammatory process in these diseases.     

血清可溶性白细胞介素6受体的检测及其临床意义

以夹心ELISA方法检测30名正常对照者,22份可抽提核抗原(ENA)抗体阳性血清及49名Grave病患者血清sIL-6R水平.结果表明;本方法的灵敏度为80pg/ml,批内及批间误差分别为7.5%和9.6%.正常对照组、Grave病缓解组、Grave病未缓解组及ENA抗体阳性组的血活sIL-6R浓度分别为185.55±53.0ng/ml、191.65±62.0ng/ml、241.67±69.0ng/ml和264.86±108.53ng/ml.经统计学处理Grave氏病未缓解组和ENA抗体阳性组sIL-6R水平明显高于正常对照组对,Grave病缓解组与上常对照组血清sIL-6R浓度无差异提示slL-6R检测在ENA抗体产生中的作用和Grave病监测病情中的价值.     

Soluble interleukin-2 receptor in sera of patients with Graves' disease.

Activation of T lymphocytes has been found to be associated with an increase in soluble interleukin-2 receptor (sIL-2R) levels. The aim of this study was to investigate serum levels of sIL-2R in 20 untreated patients with Graves' disease and to relate these levels to disease activity and to TSH-receptor, anti-thyroglobulin, anti-microsomal and anti-eye muscle antibodies. sIL-2R levels were significantly increased in newly diagnosed Graves' patients compared with controls (667 +/- 270 vs 205 +/- 45 U/ml) (P less than 0.001). The sIL-2R levels were higher in patients with active infiltrative ophthalmology than in those without eye symptoms (810 +/- 313 vs 525 +/- 180 U/ml). All patients were treated with methimazole for at least 12 months. sIL-2R levels were normalized by methimazole treatment in the majority of patients without ophthalmopathy but not in those with ophthalmopathy. In five patients sIL-2R serum levels were studied after interruption of thyrostatic therapy. An increase was observed in three patients and hyperthyroidism subsequently relapsed in two of these. Furthermore, a correlation was found between soluble interleukin-2 receptor levels and TSH-receptor antibodies but not with other immune parameters examined. Serum sIL-2R represents a useful marker of immunological activity in Graves' disease.     

血清可溶性IL-2R检测在结缔组织病中的应用

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。结果表明MCTD、SLE、RA患者血清SIL-2R水平明显高干正常对照组(P<0.001);对部分患者血清SIL-2R进行了动态观察,发现结缔组织病患者,随着病情的改善,血清SIL-2R水平降低。本文结果提示,结缔组织病患者存在着淋巴细胞激活状态,检测血清SIL-2R可能对结缔组织病患者活动性观察有一定意义,可作为衡量体内细胞免疫活性的指标。