Cooperative effects of gamma interferon and 1-alpha,25-dihydroxyvitamin D3 in inducing differentiation of human promyelocytic leukemia (HL-60) cells.

Published

Journal Article

Various agents induce differentiation of human leukemia cells in vitro. Most of these agents cause myeloid differentiation, but phorbol diesters, 1-alpha,25-dihydroxyvitamin D3 (1,25[OH2]D3), and certain lymphokines cause differentiation to monocyte-like cells. The purpose of this study was to determine the cooperative effects of 1,25(OH2)D3 and the lymphokine gamma interferon (IFN-gamma) on HL-60 cell differentiation. The recombinant human IFN-gamma or 1,25(OH2)D3 caused a slight reduction in the proliferation of the HL-60 cells (30%-40% reduction at doses of 100-200 U/ml [0.25-0.50 nM] IFN-gamma, or 5-25 nM 1,25[OH2]D3). HL-60 cells treated with 100 U/ml IFN-G had an eightfold increase in expression of nonspecific esterase (NSE) and a twofold increase in H2O2 production in response to phorbol myristate acetate (PMA). 1,25(OH2)D3 enhanced NSE expression eight- to 30-fold and H2O2 secretion twofold in response to PMA. There was also enhanced expression of HLA-DR and the receptor for C3bi. The 1,25(OH2)D3- and IFN-gamma-differentiating effects appeared to be additive or synergistic. Populations of IFN-gamma-treated HL-60 cells (but not the 1,25[OH2]D3-treated cells) had multinucleated giant cells. The polykaryons had NSE activity and had some properties of macrophage polykaryons or osteoclasts. 1,25(OH2)D3 did not augment the IFN-gamma-induced polykaryon formation.

Full Text

Duke Authors

Cited Authors

  • Weinberg, JB; Misukonis, MA; Hobbs, MM; Borowitz, MJ

Published Date

  • February 1, 1986

Published In

Volume / Issue

  • 14 / 2

Start / End Page

  • 138 - 142

PubMed ID

  • 3080326

Pubmed Central ID

  • 3080326

International Standard Serial Number (ISSN)

  • 0301-472X

Language

  • eng

Conference Location

  • Netherlands