Expression of vitamin D receptor and its involvement in EB1089-mediated apoptosis.

(A) B-CLL cells, T cells from B-CLL samples, and normal B and T lymphocytes were assessed for their expression of vitamin D receptor by immunofluorescent flow cytometric assay. (B) Competitive inhibition studies using recombinant vitamin D receptor EB1089 molar ratios of 10:1 and 100:1 abrogated some of the apoptotic effects of EB1089.