Functional disturbances in hemopoietic microenvironment in various forms of myelodysplastic syndrome
2000
We studied the ability of stromal sublayer of long-term bone marrow cultures and peripheral blood macrophages from patients with various forms of myelodysplastic syndrome to maintain the growth of normal granulocyte-macrophage colony-forming units in mixed cultures. There were changes in the hemopoietic microenvironment in these patients: decreased cellularity of the bone marrow and impaired formation of sublayers in long-term bone marrow cultures, production of growth factors, maintaining the growth of normal granulocyte-macrophage precursors by stromal cells. Dysfunction of macrophages in the stromal microenvironment was probably related to the presence of pathological macrophages.
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