Recombinant Murine Granulocyte Macrophage Colony-stimulating Factor Has Megakaryocyte Colony-stimulating Activity and Augments Megakaryocyte Colony Stimulation by Interleukin 3
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Recombinant murine granulocyte macrophage colony-stimulating factor (rGM-CSF) has been produced in Escherichia coli and purified to homogeneity. GM-CSF has an established role as an in vitro regulator of granulocyte and macrophage colony formation. We have determined that rGM-CSF also has intrinsic activity as a megakaryocyte colony-stimulating factor and that rGM-CSF augments the effect of interleukin 3 (IL-3) on megakaryocyte colony formation. The dose-response curve for megakaryocyte colony induction with rGM-CSF showed plateau megakaryocyte stimulation at 9 ng/ml. When IL-3 (at a plateau dose for megakaryocyte colony induction) was added to rGM-CSF over a 0-22-ng/ml dose range, the resultant megakaryocyte colony stimulation approximated the sum of the levels of stimulation produced by either factor alone. These results establish GM-CSF as a multilineage growth factor with definite megakaryocyte colony-stimulating activity and indicate that both GM-CSF and IL-3 are important in the regulation of megakaryocytopoiesis.
Grant S, Heel R Drugs. 2017; 43(4):516-560.
PMID: 28421558 DOI: 10.2165/00003495-199243040-00008.
Emerson S, Yang Y, Clark S, Long M J Clin Invest. 1988; 82(4):1282-7.
PMID: 3049674 PMC: 442680. DOI: 10.1172/JCI113727.
Human interleukin 6 is a direct promoter of maturation of megakaryocytes in vitro.
Ishibashi T, Kimura H, Uchida T, KARIYONE S, Friese P, BURSTEIN S Proc Natl Acad Sci U S A. 1989; 86(15):5953-7.
PMID: 2788282 PMC: 297749. DOI: 10.1073/pnas.86.15.5953.
The role of growth factors in haemopoietic development: clinical and biological implications.
Daniel C, Dexter T Cancer Metastasis Rev. 1989; 8(3):253-62.
PMID: 2697473 DOI: 10.1007/BF00047340.
Numerous growth factors can influence in vitro megakaryocytopoiesis.
Hoffman R, Briddell R, Bruno E Yale J Biol Med. 1990; 63(5):411-8.
PMID: 2293500 PMC: 2589366.