PMID: 9186537Apr 1, 1997Paper

Human FLT3 ligand acts on myeloid as well as multipotential progenitors derived from purified CD34+ blood progenitors expressing different levels of c-kit protein

European Journal of Haematology
Y SonodaT Abe

Abstract

We studied the effect of human flt3/flk2 ligand (FL) on the proliferation and differentiation of purified CD34+ blood progenitors which express different levels of c-kit protein in clonal cell culture in comparison with that of stem cell factor (SCF). FL alone did not support significant colony formation. However, FL significantly enhanced neutrophil colony (CFU-G) formation in the presence of granulocyte-colony stimulating factor (G-CSF) by peripheral blood (PB)-derived CD34+c-kit- cells which contained a large number of CFU-G. In addition, FL could synergistically increase the number of CFU-G supported by a combination of interleukin (IL)-3 and G-CSF, as did SCF. As we reported previously, SCF showed a significant burst-promoting activity (BPA). In contrast, FL did not exhibit any BPA on PB-derived CD34+c-kithigh cells in which erythroid-burst (BFU-E) was highly enriched. However, FL could synergize with IL-3 or GM-CSF in support of erythrocyte-containing mixed (E-Mix) colony by PB-derived CD34+c-kithigh or low cells in the presence of Epo. Replating of E-Mix colonies derived from CD34+c-kithigh cells supported by IL-3+Epo+SCF yielded more secondary colonies than those supported by IL-3+Epo or IL-3+Epo+FL. When PB-derived CD3...Continue Reading

References

Aug 1, 1988·American Journal of Hematology·Y Sonoda, M Ogawa
Jan 18, 1994·Proceedings of the National Academy of Sciences of the United States of America·D SmallA M Gewirtz

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Citations

Aug 15, 2002·Blood·D Gary Gilliland, James D Griffin

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