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. 1988 Oct 14;156(1):588-94.
doi: 10.1016/s0006-291x(88)80883-0.

Heterologous up-regulation of the 1,25-dihydroxyvitamin D3 receptor by parathyroid hormone (PTH) and PTH-like peptide in osteoblast-like cells

H A Pols  1 , J P van Leeuwen, J P Schilte, T J Visser, J C Birkenhäger
Affiliations

Heterologous up-regulation of the 1,25-dihydroxyvitamin D3 receptor by parathyroid hormone (PTH) and PTH-like peptide in osteoblast-like cells

H A Pols et al. Biochem Biophys Res Commun. .

Abstract

1,25-Dihydroxyvitamin D3 (1,25-(OH)2D3) receptor content in cultured osteogenic sarcoma cells (UMR-106) was found to be increased after treatment with both bovine and human PTH and human PTH-like peptide (hPLP). The dose dependent increase of receptors was preceded by a dose dependent stimulation of cAMP production. This suggests a role for cAMP as mediator of the PTH- and hPLP-induced 1,25-(OH)2D3 receptor up-regulation. Furthermore, evidence was obtained that new mRNA and de novo receptor synthesis is involved in this heterologous 1,25-(OH)2D3 receptor up-regulation.

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