Phosphate Stimulates Differentiation and Mineralization of the Chondroprogenitor Clone ATDC5

ATDC5 cells were employed to examine how inorganic phosphate (Pi) influences chondrocytic bone formation. 1) Pi (3 - 30 mM) plus ascorbic acid (50 μg/ml) dose-dependently accelerated proliferative differentiation and mineralization of ATDC5. 2) Northern blot analysis revealed that 10 mM Pi suppresse...

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Veröffentlicht in:Japanese Journal of Pharmacology 2001, Vol.85(3), pp.278-281
Hauptverfasser: Fujita, Takashi, Meguro, Tora, Izumo, Nobuo, Yasutomi, Chigusa, Fukuyama, Ryo, Nakamuta, Hiromichi, Koida, Masao
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container_end_page 281
container_issue 3
container_start_page 278
container_title Japanese Journal of Pharmacology
container_volume 85
creator Fujita, Takashi
Meguro, Tora
Izumo, Nobuo
Yasutomi, Chigusa
Fukuyama, Ryo
Nakamuta, Hiromichi
Koida, Masao
description ATDC5 cells were employed to examine how inorganic phosphate (Pi) influences chondrocytic bone formation. 1) Pi (3 - 30 mM) plus ascorbic acid (50 μg/ml) dose-dependently accelerated proliferative differentiation and mineralization of ATDC5. 2) Northern blot analysis revealed that 10 mM Pi suppressed expression of type II collagen and PTH (parathyroid hormone) / PTH-related peptide (PTHrP) receptor, while it accelerated type X collagen expression. 3) Pi (3 − 30 mM) dose-dependently increased luciferase activity in the cells transfected with 3000 bp type X collagen promoter fused to the luciferase gene. The results suggest a regulatory role of Pi in endochondral osteogenesis.
doi_str_mv 10.1254/jjp.85.278
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subjects Animals
ATDC5
Biomarkers - analysis
Blotting, Northern
Calcification, Physiologic - physiology
Cell Differentiation
Chondrocytes - cytology
Chondrocytes - metabolism
Clone Cells
Collagen - metabolism
Endochondral osteogenesis
Mice
Parathyroid Hormone - metabolism
Parathyroid Hormone-Related Protein
Phosphate
Phosphates - metabolism
Phosphates - pharmacology
Proteins - metabolism
Stem Cells - cytology
Stem Cells - metabolism
title Phosphate Stimulates Differentiation and Mineralization of the Chondroprogenitor Clone ATDC5
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