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无内毒素人促红细胞生成素的生物学特性

The biological properties of endotoxin-free human erythropoietin.

作者信息

Weiss T L, Goldwasser E

出版信息

Biochem J. 1981 Jul 15;198(1):17-21. doi: 10.1042/bj1980017.

Abstract

The biological effects formerly attributed to erythropoietin were generally observed using impure preparations of the hormone containing, among the impurities, bacterial endotoxin, a contaminant that has recently been shown to affect the haemopoietic system. Erythropoietin, purified to apparent homogeneity and freed of trace contamination by endotoxin (1) promotes erythroid burst formation from mouse marrow cells in semi-solid culture medium, (2) stimulates haemoglobin synthesis in rat marrow cell cultures, (3) stimulates transcription in mouse and rat bone marrow cell cultures and (4) causes the formation of the cytoplasmic mediator protein in rat marrow cells, which enhances transcription in isolated nuclei.

摘要

以前归因于促红细胞生成素的生物学效应,通常是使用该激素的不纯制剂观察到的,这些制剂的杂质中含有细菌内毒素,最近已证明这种污染物会影响造血系统。将促红细胞生成素纯化至表观均一且无内毒素微量污染后,(1)在半固体培养基中可促进小鼠骨髓细胞形成红系爆式集落,(2)刺激大鼠骨髓细胞培养物中的血红蛋白合成,(3)刺激小鼠和大鼠骨髓细胞培养物中的转录,(4)促使大鼠骨髓细胞中形成细胞质介质蛋白,该蛋白可增强分离细胞核中的转录。

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