病毒性肝炎患者IL－1、IL－6和TNFα活性的检测

检测了甲、乙型病毒性肝炎患者外周血单个核细胞（ＰＢＭＣｓ）ＩＬ－１、ＩＬ－６和ＴＮＦα的诱生活性及其血清中活性。结果表明，乙型慢性活动性肝炎（ＣＡＨ）、乙型肝炎后肝硬化（ＨＣ）和乙型重型肝炎（ＳＨ）ＰＢＭＣｓ经脂多糖诱导后，ＩＬ－１活性分别为３５３１．１±８８２．７Ｕ／ｍ１、２７６９．７±７３０．４±Ｕ／ｍｌ和５３２９．３±１０８９．３Ｕ／ｍｌ，高于正常对照组（Ｐ＜０．０５或（０．０１）；ＩＬ－６诱生活性分别为３８．９０±１４．７５Ｕ／ｍ１、２．４５±１８．８５Ｕ／ｍｌ和７１．９５±２８．０５Ｕ／ｍｌ（与正常对照组相比，ｐ＜０．０５或＜０．０１）；ＴＮＦα诱生活性在乙型慢性迁延性肝炎（ＣＰＨ）、ＣＡＨ、ＨＣ和ＳＨ中分别为３３．２３±７．２５Ｕ／ｍｌ、６．９９±１．８４Ｕ／ｍ１、４．２９±２．１７Ｕ／ｍｌ和８６．７０±２４．１８Ｕ／ｍｌ，与对照组相比Ｐ＜０．０５或Ｐ＜０．０１。各型患者血清中ＩＬ－１、ＩＬ－６和ＴＮＦα活性均有不同程度的增高。文中对ＳＨ患者ＩＬ－１、ＩＬ－６和ＴＮＦα之间的相互关系进行了探讨。     

病毒性肝炎患者IL—1,IL—6和INFa活性的检测

检测了甲，乙型病毒性肝炎患者外周血单个核细胞ＩＬ－１、ＩＬ－６和ＴＮＦａ的诱生活性及其血清中活性。结果表明，乙型慢性活动性肝炎、乙型肝炎后肝硬化和乙型生型肝炎ＰＢＭＣｓ经脂多糖诱导后，ＩＬ－１活性分别为３５３１．１±８８２．７Ｕ／ｍｌ，２７６９．７±７３０．４±Ｕ／ｍｌ和５３２９．３±１０８９．３Ｕ／ｍｌ，高于正常对照组（Ｐ＜０．０５）或＜０．０１）；ＩＬ－６诱生活性分别为３８．９０±１４．７５Ｕ     

小鼠腹腔巨噬细胞膜结合IL－1和TNF活性研究

本文实验提示小鼠腹腔巨噬细胞（Ｍ）经体内或体外ＬＰＳ／ＳｉＯ２刺激后，其固定的完整细胞膜或细胞膜粗提物具有ＩＬＩ和ＴＮＦ活性。在１ｈ、１２ｈ两种刺激时间内，膜结合ＩＬ－１活性无显著变化，但膜结合ＴＮＦ活性则随刺激时间延长而有所降低。刺激后的Ｍ在经ｐＨ３．０的甘氨酸盐酸处理后，膜结合ＩＬ－１和膜结合ＴＮＦ活性均有下降，以ＩＬ－１活性下降较为明显。ＩＬ－１受体拮抗剂能完全阻断膜结合ＩＬ－１活性，对膜结合ＴＮＦ活性亦有轻度的抑制效应，提示在膜ＴＮＦ发挥作用过程中，膜结合ＩＬ－１可能也参与了这一过程。     

病毒性乙型肝炎患者血清sFas、TNF—α、IL—6和IL—8的检测及临床意义

目的 探讨病毒性乙型肝炎患者血清sFas、TNF－α、IL－6和IL－8水平与肝细胞凋亡／坏死之间的关系。方法 抽取各型乙型肝炎患者静脉血5mL,ELISA法检测sFas、TNF－α、IL－6和IL－8的水平。结果 上述4项指标的检出水平基本上依次为：重型乙型肝炎（SH－B）＞慢性乙肝重度（CHB－H）＞慢性乙肝中度（CHB－M）＞急性乙肝（AH－B）＞慢性乙肝轻度（CHB－L）,各组间差异显著。结论 sFas、TNF－α、IL－6和IL－8,4项指标的水平,能够反映肝细胞损害的程度,且与病毒复制、肝细胞凋亡和坏死有内在联系。     

慢性乙型肝炎患者血清sICAM-1水平及意义

目的：探讨慢性乙型肝炎（ＣＨＢ）患者血清可溶性细胞间粘附分子－１（ｓＩＣＡＭ－１）水平与肝损害的关系。方法：用ＥＬＩＳＡ检测正常人、慢性无症状ＨＢｓＡｇ携带者（ＡｓＣ）和ＣＨＢ患者血清ｓＩＣＡＭ－１。结果：ＣＨＢ患者血清ｓＩＣＡＭ－１明显高于正常人和ＡｓＣ;ＣＨＢ患者血清ｓＩＣＡＭ－１水平与其血清门冬氨酸转氨酶（ＡＳＴ）和总胆红素均呈明显正相关,与凝血酶原活动度呈明显负相关;重度ＣＨＢ患者血清ｓＩ     

IL—4对治疗前后亚急性重型病毒性肝炎患者PBMCs TN …

OBJECTIVE: The aim of this study was to compare the influence of IL-4 on the expression of TNF-alpha and IL-1 alpha mRNA by PBMCs from patients with subfulminant viral hepatitis(SFH) before and after IL-4 treatment. METHODS: The expression levels of TNF-alpha and IL-1 alpha mRNA by PBMCs were assessed by semiquantitative RT-PCR. RESULTS: IL-4 suppressed the expression of both TNF-alpha and IL-1 alpha mRNA by PBMCs from SFH patients before and after treatment dose-dependently. However, their dose-response curves showed significant differences. The inhibitory effect could be observed at a concentration of 100 U/ml and was near to maximum at 1,000 U/ml in acute phase, whereas the same suppressive action of IL-4 was reached at 100 U/ml in recovery phase. When PBMCs were cultured in the presence of IL-4 at a concentration of 100 U/ml, IL-4 down-regulated the production of both TNF-alpha and IL-1 alpha mRNA by acute phase PBMCs only to 18.18-21.98% of control cells(in absence of IL-4), while the inhibitory rates were all near to 50% in recovery phases. Moreover, it was also found that the suppressive effect of IL-4 on the expression of PBMCs TNF-alpha and IL-1 alpha mRNA in the patients with endotoxinemia and HBeAg was significantly decreased in acute phase. CONCLUSIONS: The inhibitory effect of IL-4 on the expression of PBMCs TNF-alpha and IL-1 alpha mRNA is markedly decreased in acute phase as compared with that in recovery phase and this declined response may be related to endotoxinemia and viremia.     

海洛因依赖者血清中IL—1、IL—2和TNF含量变化的研究

针对海洛因依赖者普遍存在易受细菌、病毒感染 ,多不易治愈的临床表现。本文通过对 45例海洛因成瘾者和 40例正常人血清中白细胞介素 - 1(IL- 1) ,白细胞介素 - 2 (IL- 2 )和肿瘤坏死因子 (TNF)含量测定 ,以探讨海洛因依赖者免疫功能损害与细胞因子含量变化的相互关系。现将结果报告如下 :1　对象与方法1.1　研究对象　解放军第 473医院戒毒中心收治的海洛因依赖者 45例 ,其中男性 35例 ,女性 10例 ,年龄 16～ 5 7岁 ,平均2 4.8岁 ;吸毒时间 4个月～ 4年 ,平均 2 .2年 ;海洛因日均用量0 .5～ 3 g。符合 DSM- - R关于阿片类药物依赖诊…     

多发性骨髓瘤患者IL－1、IL－6测定及相关性研究

以ＥＬ４＋ＣＴＬＬ－２及７ＴＤ１细胞株增殖法分别检测ＩＬ－１和ＩＬ－６，发现多发性骨髓瘤患者ＰＢＭＣ及骨髓瘤细胞培养上清中ＩＬ－１与ＩＬ－６水平均高于正常对照，且ＩＬ－１和ＩＬ－６水平变化呈平行相关，基因重组ＩＬ－１α和β可剂量依赖性增强骨髓瘤细胞产生ＩＬ－６，提示ＩＬ－１可诱导人类多发性骨髓瘤细胞产生ＩＬ－６，进而刺激瘤细胞增殖。     

多发性骨髓瘤患者IL－1、IL－6测定及相关性研究

以ＥＬ４＋ＣＴＬＬ－２及７ＴＤ１细胞株增殖法分别检测ＩＬ－１和ＩＬ－６，发现多发性骨髓瘤患者ＰＢＭＣ及骨髓瘤细胞培养上清中ＩＬ－１与ＩＬ－６水平均高于正常对照，且ＩＬ－１和ＩＬ－６水平变化呈平行相关，基因重组ＩＬ－１α和β可剂量依赖性增强骨髓瘤细胞产生ＩＬ－６，提示ＩＬ－１可诱导人类多发性骨髓瘤细胞产生ＩＬ－６，进而刺激瘤细胞增殖。     

云芝多糖对小鼠细胞因子的影响

目的：研究云芝多糖（CVPS）对小鼠T、B淋巴细胞及细胞因子IL-1、IL-2、IFN-γ和TNF功能的影响。方法：体外试验将指数生长小鼠淋巴细胞与不同浓度的CVPS共培养，用MTT法观察CVPS对小鼠T、B淋巴细胞的增殖作用；用胸腺细胞增殖法观察CVPS对细胞因子IL-1活性的影响；用脾细胞增殖法观察CVPS对IL-2活性的影响；用中性红染色法观察CVPS对细胞因子TNF活性的影响；体内实验给药组小鼠每天分别腹腔注射CVPS100、50和25mg／kg，连续注射5天，取出小鼠脾脏观察CVPS对小鼠T、B淋巴细胞的增殖作用；用IL-2依赖细胞株CTLL-2法检测IL-2活性，用细胞病变抑制法检测IFN-γ活性。结果：CVPS在体外给药浓度为31．25—500μg/ml时，可明显促进小鼠T、B淋巴细胞的增殖，明显增强TNF吞噬中性红的能力，明显提高细胞因子IL-1的活性。CVPS给药组小鼠IL-2、IFN-γ的活力值明显高于空白对照组，且呈良好剂量依赖关系。结论：云芝多糖对小鼠T、B淋巴细胞及细胞因子IL-1、IL-2、IFN-γ及TNF功能均有增强作用。     

急性脑梗塞患者血IL-1、IL-6、TNF、TM水平的变化及临床意义

目的 :通过测定急性脑梗塞患者的血IL 1、IL 6、TNF、TM水平 ,探讨细胞因子及TM在脑梗塞发病机制中的作用。方法 :用ELISA法对 5 5例急性脑梗塞患者血IL 1、IL 6、TNF、TM水平进行测定 ,并对部分病例进行动态观察。结果 :急性脑梗塞患者的血IL 1、IL 6、TNF、TM水平明显升高 (P <0 0 1 ) ,IL 1于发病第 1天即达高峰 ,随时间推移逐渐下降 ,而IL 6在较长时间内保持高水平。结论 :多种细胞因子相互诱生、相互作用、相互调节制约 ,形成动态的免疫调节网络 ,在脑梗塞的发病机制中起重要作用     

血清Ⅳ-C、TNF和IL-6检测对慢乙肝与肝硬化的临床价值

探讨血清Ⅳ-C、TNF和IL-6检测对慢乙肝与肝硬化的临床价值. 应用RIA测定44例慢乙肝、31例肝硬化患者和32名正常人血清Ⅳ-C、TNF和IL-6.44例慢乙肝和31例肝硬化患者血清Ⅳ-C、TNF、IL-6含量均明显增高, 与正常组相比有显著性差异(P＜0.01),肝硬化患者血清TNF含量明显高于慢乙肝患者, 慢乙肝患者血清IL-6含量明显高于肝硬化患者, 两者之间有显著性差异(P＜0.01).对慢乙肝与肝硬化患者分别测定Ⅳ-C、TNF和IL-6, 能从不同的侧面反映其肝细胞炎症、坏死与肝纤维化程度.     

Augmentation of naive,Th1 and Th2 effector CD4 Responses by IL-6, IL-1 and TNF

The role of antigen-presenting cell (APC)-derived cytokines in T cell activation is still controversial. Highly purified CD4 T cell populations of the naive and short-term Th1 and Th2 effector subsets were examined. Stimulation from anti-CD3 in the absence of APC was used to analyze directly T occurring cell-mediated effects, and the requirement for co-signaling was addressed using anti-CD28. Exogenous IL-6, IL-1 and TNF each enhanced proliferation and IL-2 secretion from naive cells, although IL-6 was most active in this regard. Peak responses, however, were obtained with IL-1 or TNF in combination with IL-6 resulting in up to 11-fold increases in IL-2 secretion. Enhanced naive T cell responses were only observed with anti-CD3 and anti-CD28, suggesting that co-signaling through surface-bound receptors was required to initiate IL-2 production. Although the cytokines enhanced naive activation, little effect was seen on differentiation into effector populations. IL-6 alone, or in combination, partially suppressed effectors secreting IFN-γ, but did not promote generation of effectors secreting IL-4. In contrast to reports on cloned cell lines, IL-6, TNF and IL-1 had enhancing activities on all cytokines elicited from already generated Th1 and Th2 effector populations. Again combinations of IL-6, TNF and IL-1 were most effective and generally required CD28 signaling. Induced responses with preexisting effector cells were far less than with naive cells and predominantly directed at augmenting IFN-γ and IL-5 secretion rather than IL-2 and IL-4. These studies show that APC-derived cytokines can promote T cell responses directly but largely after co-stimulation from accessory molecule co-receptors, that the effect is not specific for one T cell subset or cytokine, and that the naive T cell is the main target of action.     

卵巢癌患者血清中TNF、IL-8水平变化及其临床意义

目的：探讨卵巢癌患者血清中肿瘤坏死因子及白细胞介素－８测定的临床意义。方法：用放射免疫法检测３８例卵巢癌患者血清中肿瘤坏死因子（ＴＮＦ）及白细胞介素－８（ＩＬ－８））。结果：卵巢癌患者血清中ＴＮＦ及ＩＬ－８水平高于正常人。结论：卵巢嘲笑因清中ＴＮＦ、ＩＬ－８对该病的治疗及预后均有一定意义。     

Elevation of serum soluble tumour necrosis factor (TNF) receptor and IL-1 receptor antagonist levels in bronchial asthma

The specific inhibitor for TNF-α activity, soluble form of the 55-kD TNF receptor (sTNF-RI) and soluble form of the 75-kD receptor (sTNF-RII), and the specific inhibitor for IL-1 activity, IL-1 receptor antagonist (IL-1Ra), have been identified. It has been shown that the levels of these inhibitors are elevated in plasma/serum and biological fluids in several diseases, and the protective and inhibitory effect of these inhibitors exist in several inflammatory diseases. In the present study, we measured serum levels of sTNF-RI, STNF-RII and IL-1Ra by ELISA in 36 patients with bronchial asthma (16 atopic and 20 non-atopic) during asthma attacks and in stable conditions in order to assess the state of these inhibitors in allergic inflammation. The levels of sTNF-RI, sTNF-RII and IL-1Ra in sera obtained during bronchial asthma attacks were higher than those in sera obtained in stable conditions. These findings were obtained regardless of atopic status. These results suggest that higher levels of serum sTNF-RI, sTNF-RII and IL-1Ra may reflect up-regulation of TNF-R expression and IL-1Ra production in allergic inflammation, and sTNF-RI, sTNF-RII and IL-1Ra may contribute to regulating TNF-α- and IL-1-mediated production and development of allergic inflammation.     

婴幼儿感染者血清TNF、lL-6、lL-8联检的临床意义

目的:探讨了婴幼儿感染者血清TNF、IL-6、IL-8水平及其临床意义。方法:应用放免法对34例婴幼儿感染者进行了血清TNF、IL-6、IL-8检测,并以30名正常婴儿作比较。结果:婴幼儿感染者血清中TNF、IL-6、IL-8水平非常显著地高于正常人组(P<0.01),经治疗10d后,其水平显著下降,与正常人组比较无显著性差异(P>0.05)。结论:测定血清中TNF、IL-6、IL-8含量与患儿的危重程度发生、发展、预后有关。     

肺癌患者血清IL-6,IL-8和TNF活性测定的临床意义

目的 :探讨了肺癌患者血清中IL - 6、IL - 8和TNF含量的变化。方法 :应用酶联免疫吸附法和放免法测定了 4 0例肺癌患者血清中IL - 6、IL - 8和TNF含量 ,且与 35名正常健康人作比较。结果 :肺癌患者血清中IL - 6、IL - 8和TNF水平均非常显著地高于正常人 (P <0 0 1) ,术后IL - 6、IL - 8和TNF水平下降。结论 :测定肺癌患者血清中IL - 6、IL - 8和TNF含量对判断患者的免疫状态有一定的临床价值。     

IL-1B基因多态性和H.pylori感染与汉族人胃癌的相关性研究

目的：通过比较胃癌患者与匹配人群的幽门螺旋杆菌（Helicobacter pylori，H.pylori）感染率和IL-1B基因多态性，探讨IL-1B基因多态性是否增加H．pylori感染后胃癌发生的危险性。方法：采用聚合酶链反应-限制性片段长度多态性（Restriction fragment length polymorphism，RFLP）分析法检测胃癌低发区84例胃癌患者和84例与之性别、年龄匹配的普通人群的1L-1B基因多态性。采用酶联免疫吸附法（Enzyme—linked immunosorbent assay，ELISA）检测上述人群中的H.pylori感染率。结果：①胃癌患者IL-1B-511T／T基因型频率显著高于性别、年龄匹配的对照人群（P〈0．05），IL-1B-31T／T基因型频率在两组间无显著差异（P〉0．05）。84例胃癌患者的H.pylori感染率显著高于对照人群（P〈0．01）。胃癌患者H.pylori阳性感染者IL-1B-511 T／T基因型个体显著多于对照人群。结论：H.pylori感染者胃癌组织中IL-1B-511 T／T基因型为主，提示IL-1B-511 T／T基因型可能增加H.pylori感染后中国汉族人群发生胃癌的危险性，而IL-1B-31基因型与H.pylori感染后中国汉族人群胃癌发生无显著相关性。     

慢性乙肝患者血清IL-27水平检测及意义

目的:初步探讨慢性乙肝(CHB)患者血清白介素-27(IL-27)表达水平及意义。方法:根据临床表现将33例CHB患者分为轻度组(12例)、中度组(11例)和重度组(10例),分别检测各组血清IL-27水平以及谷丙转氨酶(ALT)和γ-谷氨酰转肽酶(GGT)水平;又根据血清乙型肝炎病DNA(HBV-DNA)载量,将患者分成HBV-DNA低载量组(≤105拷贝数/ml)和高载量组(>105拷贝数/ml),比较两组IL-27水平差异。结果:CHB各组血清IL-27水平较健康对照组明显升高(P<0.05),且重度组显著高于轻度组和中度组(P<0.05);不同HBV-DNA载量组血清IL-27水平有显著差异,低载量组显著高于高载量组(P<0.05);CHB患者血清IL-27水平与ALT和GGT水平均呈显著正相关(r分别为0.723和0.664,P<0.01)。结论:IL-27水平升高与CHB严重程度有关;IL-27在清除患者HBV感染的同时也造成其肝细胞炎性损伤。