Isolation and characterization of a novel cDNA from HL-60 cells treated with 1,25-dihydroxyvitamin D-3

Biochim Biophys Acta. 1994 Sep 13;1219(1):26-32. doi: 10.1016/0167-4781(94)90242-9.


A novel cDNA clone (VDUP1) has been isolated from a cDNA library constructed from mRNA obtained from HL-60 cells stimulated by 1,25-dihydroxyvitamin D-3. Northern blot analysis showed that VDUP1 cDNA hybridizes to a 2.9 kb mRNA species which is up-regulated in HL-60 cells by 1,25-dihydroxyvitamin D-3 (1,25-(OH)2D3) treatment. In vitro expression of VDUP1 cDNA produced a 46 kDa protein. A search of the GenBank database revealed that the 3' untranslated region of VDUP1 is homologous to a sequence expressed in brain. A detailed time course study showed that the VDUP1 mRNA starts to increase at 6 h after 1,25-dihydroxyvitamin D-3 treatment, reaches a plateau at around 18 h and stays elevated for 24 h. The VDUP1 mRNA is not regulated by phorbol 12-myristate 13-acetate (PMA) in HL-60 cells. Inhibition of protein synthesis by cycloheximide does not prevent the induction of VDUP1 mRNA by 1,25-dihydroxyvitamin D-3. Cycloheximide itself increases VDUP1 mRNA levels. These results suggest that the degradation of VDUP1 mRNA is either translation-dependent or regulated by a labile protein.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Base Sequence
  • Calcitriol / pharmacology*
  • Cell Differentiation
  • Cloning, Molecular
  • DNA, Complementary / genetics*
  • Humans
  • Leukemia, Promyelocytic, Acute / genetics*
  • Molecular Sequence Data
  • Protein Biosynthesis
  • RNA, Messenger / genetics*
  • Sequence Analysis, DNA
  • Tumor Cells, Cultured
  • Up-Regulation*


  • DNA, Complementary
  • RNA, Messenger
  • Calcitriol

Associated data

  • GENBANK/S73591