Hydrocortisone modulates colony-stimulating activity produced by human bone marrow-derived adherent cells.

Abstract:

:In an attempt to clarify the significance of hydrocortisone (HC) in human long-term bone marrow cultures, the production of colony-stimulating activity (CSA) and colony-enhancing activity (CEA) by human bone marrow-derived adherent cells (MDAC) and the modulation by HC were examined. The CSA production by MDAC was demonstrated using bilayer agar cultures. After treatment of MDAC with 10(-6) mol/l HC, the CSA production was markedly enhanced, and after treatment of macrophages with 10(-6) mol/l HC, the CSA production was inhibited. When added to a granulocyte-macrophage precursor cells (CFU-GM) assay system, HC inhibited colony formation. These results suggest that HC treatment directly stimulates CSA production by nonmacrophage cells of MDAC. The conditioned medium of the confluent layer of MDAC contained CEA, which was not influenced by the HC treatment of MDAC. Thus, HC plays an essential role in granulopoiesis in vitro, enhancing the CSA production by MDAC and inhibiting the differentiation of CFU-GM.

journal_name

Eur J Haematol

authors

Hirata J,Kaneko S,Nishimura J,Motomura S,Ibayashi H

doi

10.1111/j.1600-0609.1988.tb00826.x

subject

Has Abstract

pub_date

1988-03-01 00:00:00

pages

215-21

issue

3

eissn

0902-4441

issn

1600-0609

journal_volume

40

pub_type

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