Rapid action of pesticides on cytosolic calcium concentrations in cultures of human umbilical vein endothelial cells.
Reprod Toxicol
; 21(3): 271-9, 2006 Apr.
Article
in En
| MEDLINE
| ID: mdl-16243481
ABSTRACT
Persistent metabolites of pesticides such as p,p'-DDE, at environmentally relevant concentrations, have been shown to have a rapid effect on intracellular calcium [Ca2+]i concentrations in human granulosa-lutein cells. Since endocrine disrupting substances can be transferred from the maternal circulation to the fetus the present study examined whether the pesticides, kepone, o,p-DDE, p,p'-DDE and methoxychlor, could alter cytoplasmic calcium [Ca2+]cyt concentrations in human umbilical vein endothelial (HUVE) cells. Cultured HUVE cells were loaded with Fura-2 AM and changes in [Ca2+]cyt of single cells were studied using a dynamic digital Ca2+ imaging system. Kepone and methoxychlor consistently increased [Ca2+]cyt concentrations, similar to the effects of estradiol and progesterone. p,p'-DDE increased [Ca2+]cyt concentrations in 80% of experiments whereas o,p-DDE stimulated its increases in 42%. Estrone, estriol, pregnenolone and cortisol were not effective. These results demonstrate that pesticides can have a rapid effect on HUVE cells probably through a nongenomic mechanism of action.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pesticides
/
Calcium
/
Endothelial Cells
Limits:
Humans
Language:
En
Journal:
Reprod Toxicol
Journal subject:
EMBRIOLOGIA
/
MEDICINA REPRODUTIVA
/
TOXICOLOGIA
Year:
2006
Document type:
Article