Detection of tumor necrosis factor soluble receptor p55 in blood samples from healthy and endotoxemic humans.

Detection of tumor necrosis factor soluble receptor p55 in blood samples from healthy and endotoxemic humans.
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健康人和内毒素血症人血液样本中肿瘤坏死因子可溶性受体 p55 的检测。

DOI:
10.1093/infdis/167.6.1344
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发表时间:
1993
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Dinarello,CA
Dinarello,CA
中科院分区:
--
文献类型:
--
作者:
Shapiro,L;Clark,BD;Orencole,SF;Poutsiaka,DD;Granowitz,EV;Dinarello,CA

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来源于细胞表面p55 TNF受体(TNFsRp 55)的肿瘤坏死因子(TNF)可溶性受体是在感染和炎症期间产生的天然存在的物质。TNFsRp 55抑制TNF的生物学效应。开发了RIA以定量人血液中的TNFsRp 55。与从血清或肝素化血浆中回收相比,从用EDTA抗凝的血液中回收TNFsRp 55是最佳的。TNF不干扰测定。用放射性标记的大肠杆菌来源的重组TNFsRp 55作放射免疫分析,在14名志愿者中测得平均浓度为198 ± 15 pg/ml。当使用糖基化CHO细胞衍生的TNFsRp 55时,平均水平为1656 ± 95 pg/ml。将内毒素注入志愿者体内可诱导TNF sRp 55的产生,其峰值为517 ± 99 pg/ml。CHO细胞放免法为7300 ± 1810 pg/ml。这些发现表明,在EDTA中收集的血液对于测量循环TNFsRp 55是最佳的,并且这种可溶性受体存在于健康中,但在内毒素血症期间升高。
The tumor necrosis factor (TNF) soluble receptor derived from the cell surface p55 TNF receptor (TNFsRp55) is a naturally occurring substance generated during infection and inflammation. TNFsRp55 inhibits biologic effects of TNF. An RIA was developed to quantitate TNFsRp55 in human blood. Recovery of TNFsRp55 from blood anticoagulated with EDTA was optimal compared with recovery from serum or heparinized plasma. TNF did not interfere with the assay. With the RIA based on radiolabeled nonglycosylatedEscherichia coli-derived recombinant TNFsRp55, a mean concentration of 198 ± 15 pg/ml, was found in 14 volunteers. When glycosylated CHO cell-derived TNFsRp55 was used, the mean level was 1656 ± 95 pg/ml.. Infusion of endotoxin into volunteers induced TNFsRp55, which peaked at 517 ± 99 pg/rnl, for theE. coli-based RIA and 7300 ± 1810 pg/ml, for the CHO cell-based RIA. These findings demonstrate that blood collected in EDTA is optimal for measuring circulating TNFsRp55 and that this soluble receptor is present in health but elevated during endotoxemia.
DOI: 10.1182/blood.v77.8.1627.bloodjournal7781627
发表时间: 1991-04
期刊: Blood
影响因子: 20.3
作者:
C. Dinarello
通讯作者: C. Dinarello
DOI: --
发表时间: 1990
影响因子: 4.8
作者:
H. Engelmann;D. Novick;D. Wallach
通讯作者: D. Wallach
关于肿瘤坏死因子 (TNF) 与肝素的结合以及肝素在体内释放 TNF 结合蛋白 I。
DOI: --
发表时间: 1991
影响因子: 15.9
作者:
M. Lantz;H. Thysell;E. Nilsson;I. Olsson
通讯作者: I. Olsson
DOI: --
发表时间: 1991
期刊: The Journal of biological chemistry
影响因子: --
作者:
Porteu,F;Brockhaus,M;Wallach,D;Engelmann,H;Nathan,CF
通讯作者: Nathan,CF