1,25-Dihydroxyvitamin D3 induces phospholipase D-1 expression in primary mouse epidermal keratinocytes

Richard D Griner, Feng Qin, Eun Mi Jung, Christopher K. Sue-Ling, Kimberly B. Crawford, Ra Shawn Mann-Blakeney, Roni Jacob Bollag, Wendy B Bollag

Research output: Contribution to journalArticle

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Abstract

The hormone 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) elicits the programmed pattern of differentiation in epidermal keratinocytes. Based on data indicating a potential role of phospholipase D (PLD) in mediating keratinocyte differentiation, we investigated the effect of 1,25(OH)2D3 on PLD expression. A 24-h exposure to 1,25(OH)2D3 stimulated PLD-1, but not PLD-2, mRNA expression. This 1,25(OH)2D3-enhanced expression was accompanied by increased total PLD and PLD-1 activity. Time course studies indicated that 1,25(OH)2D3 induced PLD-1 expression by 8 h, with a maximal increase at 20-24 h. Exposure to 1,25(OH)2D3 inhibited proliferation over the same time period with similar kinetics. Expression of the early (spinous) differentiation marker keratin 1 decreased in response to 1,25(OH)2D3 over 12-24 h. Treatment with 1,25(OH)2D3 enhanced the activity of transglutaminase, a late (granular) differentiation marker, by 12 h with a maximal increase after 24 h. In situ hybridization studies demonstrated that the highest levels of PLD-1 expression are in the more differentiated (spinous and granular) layers of the epidermis, with little expression in basal keratinocytes. Our results suggest a role for PLD expression/activity during keratinocyte differentiation.

Original languageEnglish (US)
Pages (from-to)4663-4670
Number of pages8
JournalJournal of Biological Chemistry
Volume274
Issue number8
DOIs
StatePublished - Feb 19 1999

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Phospholipase D
Calcitriol
Keratinocytes
Differentiation Antigens
Keratin-1
Time and motion study
Transglutaminases
Epidermis
In Situ Hybridization
Hormones
Messenger RNA
Kinetics

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

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1,25-Dihydroxyvitamin D3 induces phospholipase D-1 expression in primary mouse epidermal keratinocytes. / Griner, Richard D; Qin, Feng; Jung, Eun Mi; Sue-Ling, Christopher K.; Crawford, Kimberly B.; Mann-Blakeney, Ra Shawn; Bollag, Roni Jacob; Bollag, Wendy B.

In: Journal of Biological Chemistry, Vol. 274, No. 8, 19.02.1999, p. 4663-4670.

Research output: Contribution to journalArticle

Griner, Richard D ; Qin, Feng ; Jung, Eun Mi ; Sue-Ling, Christopher K. ; Crawford, Kimberly B. ; Mann-Blakeney, Ra Shawn ; Bollag, Roni Jacob ; Bollag, Wendy B. / 1,25-Dihydroxyvitamin D3 induces phospholipase D-1 expression in primary mouse epidermal keratinocytes. In: Journal of Biological Chemistry. 1999 ; Vol. 274, No. 8. pp. 4663-4670.
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