Effects of hematopoietin-1 and interleukin 1 activities on early hematopoietic cells of the bone marrow.
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Zsebo KM, Wypych J, Yuschenkoff VN, Lu H, Hunt P, Dukes PP, Langley KE
Effects of hematopoietin-1 and interleukin 1 activities on early hematopoietic cells of the bone marrow.
Blood. 1988 Apr;71(4):962-8.
- PubMed ID
- 3281727 [ View in PubMed]
- Abstract
Hematopoietin-1 (H-1) was purified from the human cell line 5637 and two amino acid sequences were observed in the preparation. One sequence was identical to that of interleukin 1 alpha (IL 1 alpha) and the other to that of IL 1 beta. The action of recombinant IL 1 alpha and other hematopoietic growth factors was studied using (a) a high proliferative potential colony-forming cell assay that uses primitive hematopoietic precursors from bone marrow, and (b) a spleen colony-forming unit assay. The results indicate that the IL 1 alpha target cell population is different than the target cell populations of IL 3, granulocyte-macrophage colony-stimulating factor; that IL 1 alpha in combination with mononuclear phagocyte colony-stimulating factor provides a proliferative stimulus; and that IL 1 alpha has at least a survival-enhancing and possibly proliferation-inducing effect on primitive hematopoietic stem cells.