1,25-Dihydroxyvitamin D3 enhances prostaglandin E2 production by monocytes. A mechanism which partially accounts for the antiproliferative effect of 1,25(OH)2D3 on lymphocytes

R. Koren, A. Ravid, C. Rotem, E. Shohami, U. A. Liberman, A. Novogrodsky

Research output: Contribution to journalArticlepeer-review

Abstract

Partial removal of monocytes from human peripheral blood mononuclear cells, or the addition of indomethacin. reduced the antiproliferative effect of 1,25(OH)2D3 on mitogen-stimulated mononuclear cells. Addition of 1,25(OH)2D3 (1nM) to mitogen-stimulated mononuclear cells caused a 2-4-fold increase in prostaglandin E2 production during the second day of culture. The inhibitory effect of 1,25(OH)2D3 on lymphocyte proliferation is greatly augmented up to 7-fold in the presence of prostaglandin E2. We conclude that monocytes are involved in the inhibitory effect of 1,25(OH)2D3 on the mitogenic stimulation of human lymphocytes and that their action is probably mediated by prostaglandins.

Original languageEnglish
Pages (from-to)113-116
Number of pages4
JournalFEBS Letters
Volume205
Issue number1
DOIs
StatePublished - 1 Sep 1986
Externally publishedYes

Keywords

  • 1,25-Dihydroxy vitamin D
  • Lymphocyte activation
  • Monocyte
  • Prostaglandin E

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