» Articles » PMID: 2242495

Effect of 1,25(OH)2D3 and 24,25(OH)2D3 on Calcium Ion Fluxes in Costochondral Chondrocyte Cultures

Overview
Specialty Pathology
Date 1990 Oct 1
PMID 2242495
Citations 5
Authors
Affiliations
Soon will be listed here.
Abstract

Vitamin D3 metabolites have been shown to affect proliferation, differentiation, and maturation of cartilage cells. Previous studies have shown that growth zone chondrocytes respond primarily to 1,25(OH)2D3 whereas resting zone chondrocytes respond primarily to 24,25(OH)2D3. To examine the role of calcium in the mechanism of hormone action, this study examined the effects of the Ca ionophore A23187, 1,25(OH)2D3, and 24,25(OH)2D3 on Ca influx and efflux in growth zone chondrocytes and resting zone chondrocytes derived from the costochondral junction of 125 g rats. Influx was measured as incorporation of 45Ca. Efflux was measured as release of 45Ca from prelabeled cultures into fresh media. The pattern of 45Ca influx in unstimulated (control) cells over the incubation period was different in the two chondrocyte populations, whereas the pattern of efflux was comparable. A23187 induced a rapid influx of 45Ca in both types of chondrocytes which peaked by 3 minutes and was over by 6 minutes. Influx was greatest in the growth zone chondrocytes. Addition of 10(-8)-10(-9) M 1,25(OH)2D3 to growth zone chondrocyte cultures results in a dose-dependent increase in 45Ca influx after 15 minutes. Efflux was stimulated by these concentrations of hormone throughout the incubation period. Addition of 10(-6)-10(-7) M 24,25(OH)2D3 to resting zone chondrocytes resulted in an inhibition in ion efflux between 1 and 6 minutes, with no effect on influx during this period. Efflux returned to control values between 6 and 15 minutes. 45Ca influx was inhibited by these concentrations of hormone from 15 to 30 minutes.(ABSTRACT TRUNCATED AT 250 WORDS)

Citing Articles

MicroRNA Contents in Matrix Vesicles Produced by Growth Plate Chondrocytes are Cell Maturation Dependent.

Lin Z, McClure M, Zhao J, Ramey A, Asmussen N, Hyzy S Sci Rep. 2018; 8(1):3609.

PMID: 29483516 PMC: 5826934. DOI: 10.1038/s41598-018-21517-4.


Phospholipases of mineralization competent cells and matrix vesicles: roles in physiological and pathological mineralizations.

Mebarek S, Abousalham A, Magne D, Do L, Bandorowicz-Pikula J, Pikula S Int J Mol Sci. 2013; 14(3):5036-129.

PMID: 23455471 PMC: 3634480. DOI: 10.3390/ijms14035036.


Prostaglandins are important in thermoregulation of a reptile (Pogona vitticeps).

Seebacher F, Franklin C Proc Biol Sci. 2003; 270 Suppl 1:S50-3.

PMID: 12952634 PMC: 1698025. DOI: 10.1098/rsbl.2003.0007.


Treatment of resting zone chondrocytes with bone morphogenetic protein-2 induces maturation into a phenotype characteristic of growth zone chondrocytes by downregulating responsiveness to 24,25(OH)2D3 and upregulating responsiveness to 1,25-(OH)2D3.

Schwartz Z, Sylvia V, Liu Y, Dean D, Boyan B Endocrine. 1999; 9(3):273-80.

PMID: 10221593 DOI: 10.1385/ENDO:9:3:273.


The effects of 17 beta-estradiol on chondrocyte differentiation are modulated by vitamin D3 metabolites.

Schwartz Z, Finer Y, Nasatzky E, Soskolne W, Dean D, Boyan B Endocrine. 1998; 7(2):209-18.

PMID: 9549047 DOI: 10.1007/BF02778143.

References
1.
Boyan B, Schwartz Z, Carnes Jr D, Ramirez V . The effects of vitamin D metabolites on the plasma and matrix vesicle membranes of growth and resting cartilage cells in vitro. Endocrinology. 1988; 122(6):2851-60. DOI: 10.1210/endo-122-6-2851. View

2.
Feher J, WASSERMAN R . Intestinal calcium-binding protein and calcium absorption in cortisol-treated chicks: effects of vitamin D3 and 1,25-dihydroxyvitamin D3. Endocrinology. 1979; 104(2):547-51. DOI: 10.1210/endo-104-2-547. View

3.
Nemere I, Leathers V, Norman A . 1,25-Dihydroxyvitamin D3-mediated intestinal calcium transport. Biochemical identification of lysosomes containing calcium and calcium-binding protein (calbindin-D28K). J Biol Chem. 1986; 261(34):16106-14. View

4.
Lieberherr M . Effects of vitamin D3 metabolites on cytosolic free calcium in confluent mouse osteoblasts. J Biol Chem. 1987; 262(27):13168-73. DOI: 10.1515/9783110846713.769. View

5.
Boyan B, Schwartz Z, Swain L, Carnes Jr D, Zislis T . Differential expression of phenotype by resting zone and growth region costochondral chondrocytes in vitro. Bone. 1988; 9(3):185-94. DOI: 10.1016/8756-3282(88)90008-7. View