文章基本信息

标题：Tumor-promoting phorbol esters stimulate myelopoiesis and suppress erythropoiesis in cultures of mouse bone marrow cells
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作者：F Sieber ; R K Stuart ; J L Spivak 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1981
卷号：78
期号：7
页码：4402-4406
DOI：10.1073/pnas.78.7.4402
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Tumor-promoting phorbol esters affect the ability of mouse hematopoietic progenitor cells to form morphologically recognizable colonies in culture. They induce myeloid progenitor cells to form colonies of the monocyte/macrophage type in the absence of exogenous granulocyte/macrophage colony-stimulating factor. Conversely, similar concentrations of tumor-promoting phorbol esters inhibit the formation of colonies (bursts) by early erythroid progenitor cells, even when the culture medium contains saturating amounts of burst-promoting activity and erythropoietin. However, late erythroid progenitor cells, are not affected by phorbol esters. Only a temporary (45 min) exposure of marrow cells to phorbol esters is necessary to produce both stimulation of myeloid colony growth and inhibition of erythroid burst formation. Experiments with a radioactively labeled phorbol ester indicate a high affinity for cellular binding sites. The ability of various phorbol esters to stimulate myeloid colony growth and to inhibit erythroid burst formation correlates well with their ability to promote skin tumors in mice. The different responses of two developmentally closely related hematopoietic progenitor cells to the same phorbol esters indicate the usefulness of these substances in the further analysis of regulatory events affecting hematopoiesis.