Effects of analogs of 1,25(OH)2 Vitamin D3 on the proliferation and differentiation of the human chronic myelogenous leukemia cell line, RWLeu-4

  • Jeffrey W. Clark
  • , Marshall R. Posner
  • , Jean M. Marsella
  • , Anabel Santos
  • , Milan Uskokovic
  • , Charles Eil
  • , Stephen R. Lasky

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We evaluated the proliferative and differentiative effects of analogs of 1,25(OH)2 vitamin D3 [1,25(OH)2D3] on a chronic myelogenous leukemia cell line, RWLeu-4, which is growth-inhibited and differentiates in response to 1,25(OH)2D3 (ED50-3-10 n M). Side-chain-fluorinated analogs were more potent (ED50=0.7-2 n M) while most of those with altered saturation of the D ring or side-chain carbon-carbon bonds were equally or less effective than 1,25(OH)2D3. However, the two analogs with either two additional double bonds or an extra double and triple bond in the D ring had greater antiproliferatiive activity [1,25(OH)2-16,23-diene D3 (ED50=2.7 n M) and 1,25(OH)2-16-ene-23-yne D3 (ED50=0.7 n M)]. Since the latter of these has been reported to be less potent at mobilizing calcium than 1,25(OH)2D3, it (or a similar compound) may be a candidate for clinical use as an antineoplastic agent.

Original languageEnglish
Pages (from-to)190-194
Number of pages5
JournalJournal of Cancer Research and Clinical Oncology
Volume118
Issue number3
DOIs
StatePublished - Mar 1992
Externally publishedYes

Keywords

  • Analogs
  • Chronic myelogenous leukemia cells
  • Differentiation
  • Proliferation
  • Vitamin D

Fingerprint

Dive into the research topics of 'Effects of analogs of 1,25(OH)2 Vitamin D3 on the proliferation and differentiation of the human chronic myelogenous leukemia cell line, RWLeu-4'. Together they form a unique fingerprint.

Cite this