An efficient strategy to identify early TPA-responsive genes during differentiation of HL-60 cells

Ling Yueh Hu, Clifford G Tepper, Su Hao Lo, Wen Chang Lin

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We have adopted a special experimental strategy to identify early responsive genes during 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced macrophage-like differentiation of human myeloid leukemia cells (HL-60). This was performed in cells that were synchronized by nocodazole and treated with TPA in the presence of a protein synthesis inhibitor, cycloheximide, to prevent activation of secondary targets and therefore increase the probability of early transcripts in total RNA pool. The expression alteration was analyzed by microarray and the selection criteria of candidate genes were adjusted by real-time PCR validation to increase its reliability. Finally, 56 genes were identified as early TPA-responsive genes in this multiscreening step approach. Furthermore, upregulation of three candidate genes (NFIL3, SKIL, and JMJD3) was shown to be dosage and time dependent with TPA treatment and was found to be directly regulated by TPA through PKC-dependent signaling. These results revealed that our screenings provide a useful and efficient approach to identify early TPA-responsive genes and these genes might involve the regulation of TPA-induced differentiation program of HL-60 cells as primary targets.

Original languageEnglish (US)
Pages (from-to)179-189
Number of pages11
JournalGene Expression
Volume13
Issue number3
DOIs
StatePublished - 2006

Fingerprint

HL-60 Cells
Tetradecanoylphorbol Acetate
Genes
Nocodazole
Protein Synthesis Inhibitors
Myeloid Leukemia
Myeloid Cells
Cycloheximide
Patient Selection
Real-Time Polymerase Chain Reaction
Up-Regulation
Macrophages
RNA

Keywords

  • Cycloheximide
  • Differentiation
  • Early responsive gene
  • Microarray
  • TPA

ASJC Scopus subject areas

  • Genetics

Cite this

An efficient strategy to identify early TPA-responsive genes during differentiation of HL-60 cells. / Hu, Ling Yueh; Tepper, Clifford G; Lo, Su Hao; Lin, Wen Chang.

In: Gene Expression, Vol. 13, No. 3, 2006, p. 179-189.

Research output: Contribution to journalArticle

Hu, Ling Yueh ; Tepper, Clifford G ; Lo, Su Hao ; Lin, Wen Chang. / An efficient strategy to identify early TPA-responsive genes during differentiation of HL-60 cells. In: Gene Expression. 2006 ; Vol. 13, No. 3. pp. 179-189.
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