Retinoid suppression of transglutaminase activity and envelope competence in cultured human epidermal carcinoma cells. Hydrocortisone is a potent antagonist of retinyl acetate but not retinoic acid

S. M. Thacher, E. L. Coe, R. H. Rice

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

Growth of SCC-13 squamous carcinoma cultures in the presence of retinoids considerably reduced the expression of two differentiation markers, the cellular capability to form cross-linked envelopes, and the enzyme transglutaminase required for cross-linking. A limited survey of retinoids showed that all-trans retinoic acid, 13-cis retinoid acid, and arotinoid Ro 13-6298 were highly effective in the absence of hydrocortisone and were only slightly antagonized by its presence in the medium. In contrast, retinyl acetate, retinol, and retinol bound to its plasma binding protein were quite active in the absence of hydrocortisone but were essentially inactive in its presence. Dexamethasone was also highly effective in antagonizing the suppressive action of retinyl acetate on envelope formation, while the corticosteroid antagonists cortexolone and progesterone were inactive. These results suggest that there are separate pathways, which are differentially regulated by hydrocortisone, for either the metabolism or action of retinol and retinoic acid in SCC-13 cells.

Original languageEnglish (US)
Pages (from-to)82-87
Number of pages6
JournalDifferentiation
Volume29
Issue number1
StatePublished - 1985
Externally publishedYes

ASJC Scopus subject areas

  • Cell Biology
  • Developmental Biology
  • Pathology and Forensic Medicine

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