Modulation of prostaglandin E2-induced Ca2+ influx by steroid hormones in osteoblast-like cells

O. Kozawa, H. Tokuda, J. Kotoyori, Atsushi Suzuki, Y. Ito, Y. Oiso

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

In osteoblast-like MC3T3-E1 cells, we previously reported that prostaglandin E2 (PGE2), a potent bone resorbing agent, stimulates Ca2+ influx (H. Tokuda, M. Miwa, Y. Oiso and O. Kozawa, Cell Signal 1992; 4: 261-266). In this study, we examined the effects of various hormones belonging to the steroid hormone superfamily on PGE2 -induced Ca2+ influx in MC3T-E1 cells. 1,25-Dihydroxyvitamin D3 [1,25-(OH)2D3], an active form of vitamin D3, dexamethasone and retinoic acid significantly inhibited the PGE2-induced Ca2+ influx in a dose-dependent manner in these cells. The effects of these hormones were dependent on the time of pretreatment and submaximum inhibitions were observed at 6 h. In contrast, 24,25-dihydroxyvitamin D3 [24,25-(OH)2D3], an inactive form of vitamin D3, 17 β-estradiol, progesterone, testosterone and triiodothyronine had little effect on the PGE2-induced Ca2+ influx in these cells. These results suggest that, in the steroid hormone superfamily, 1,25-dihydroxyvitamin D3, glucocorticoid and retinoic acid modulate bone metabolism through the inhibition of Ca2+ influx induced by PGE2 in osteoblast-like cells.

Original languageEnglish
Pages (from-to)711-714
Number of pages4
JournalProstaglandins, Leukotrienes and Essential Fatty Acids
Volume49
Issue number3
DOIs
Publication statusPublished - 01-01-1993

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Steroid hormones
Osteoblasts
Dinoprostone
Steroids
Modulation
Hormones
Calcitriol
Cholecalciferol
Tretinoin
Bone
24,25-Dihydroxyvitamin D 3
Enzyme inhibition
Bone and Bones
Triiodothyronine
Metabolism
Dexamethasone
Glucocorticoids
Progesterone
Testosterone
Estradiol

All Science Journal Classification (ASJC) codes

  • Clinical Biochemistry
  • Cell Biology

Cite this

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title = "Modulation of prostaglandin E2-induced Ca2+ influx by steroid hormones in osteoblast-like cells",
abstract = "In osteoblast-like MC3T3-E1 cells, we previously reported that prostaglandin E2 (PGE2), a potent bone resorbing agent, stimulates Ca2+ influx (H. Tokuda, M. Miwa, Y. Oiso and O. Kozawa, Cell Signal 1992; 4: 261-266). In this study, we examined the effects of various hormones belonging to the steroid hormone superfamily on PGE2 -induced Ca2+ influx in MC3T-E1 cells. 1,25-Dihydroxyvitamin D3 [1,25-(OH)2D3], an active form of vitamin D3, dexamethasone and retinoic acid significantly inhibited the PGE2-induced Ca2+ influx in a dose-dependent manner in these cells. The effects of these hormones were dependent on the time of pretreatment and submaximum inhibitions were observed at 6 h. In contrast, 24,25-dihydroxyvitamin D3 [24,25-(OH)2D3], an inactive form of vitamin D3, 17 β-estradiol, progesterone, testosterone and triiodothyronine had little effect on the PGE2-induced Ca2+ influx in these cells. These results suggest that, in the steroid hormone superfamily, 1,25-dihydroxyvitamin D3, glucocorticoid and retinoic acid modulate bone metabolism through the inhibition of Ca2+ influx induced by PGE2 in osteoblast-like cells.",
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Modulation of prostaglandin E2-induced Ca2+ influx by steroid hormones in osteoblast-like cells. / Kozawa, O.; Tokuda, H.; Kotoyori, J.; Suzuki, Atsushi; Ito, Y.; Oiso, Y.

In: Prostaglandins, Leukotrienes and Essential Fatty Acids, Vol. 49, No. 3, 01.01.1993, p. 711-714.

Research output: Contribution to journalArticle

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AU - Tokuda, H.

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AU - Suzuki, Atsushi

AU - Ito, Y.

AU - Oiso, Y.

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