Granulocyte/macrophage progenitor cells from peripheral blood and bone marrow differ in their response to prostaglandin E1

Carol M Richman, G. D. Johnson

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Prostaglandins of the E series (PGE) inhibit proliferation of normal bone marrow granulocyte/macrophage progenitors (CFU-GM). Circulating CFU-GM are known to differ from marrow CFU-GM in many characteristics, and in the present study, we compared the effect of PGE1 on circulating and bone marrow progenitors in normals and in patients with chronic myelogenous leukemia (CML). PGE1 caused a dose-dependent inhibition of normal marrow CFU-GM. Circulating CFU-GM were inhibited only at concentrations of 10-5 mol/L or greater, and progenitor proliferation was, in fact, significantly stimulated at PGE1 concentrations between 10-8 and 10-6 mol/L. Bone marrow CFU-GM from patients with CML were inhibited in a manner similar to that of normal bone marrow. Circulating cells from patients with CML were, however, less sensitive to PGE1 inhibition than CML bone marrow cells and demonstrated a pattern intermediate between normal circulating and normal marrow progenitors. These studies suggest that peripheral blood and bone marrow contain different progenitor cell populations.

Original languageEnglish (US)
Pages (from-to)1792-1796
Number of pages5
JournalBlood
Volume70
Issue number6
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Hematology

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