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Toxicol Lett. 2002 Jul 21;133(2-3):221-9.

Estrogen receptor alpha in mouse splenic lymphocytes: possible involvement in immunity.

Author information

1
Division of Environmental Health, Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.

Abstract

To elucidate relevance of estrogens to immune responses, we investigated whether estrogen receptor alpha (ERalpha) exists in mouse splenic B cells and T cells and the effect of 17beta-estradiol and endocrine disrupting chemicals (EDCs) on lymphocyte mitogenesis. ERalpha was identified in both male and female mouse splenic cells using RT-PCR. Crude splenic cells were stained with anti-ER antibody, and the distribution of ERalpha in the splenic B cells and part of the splenic T cells was confirmed by flow cytometry. 17beta-Estradiol inhibited B cell mitogenesis at the concentration of 10(-8) M and T cell mitogenesis at the concentration of 10(-6) M. Some EDCs, diethylstilbestrol, bisphenol A, p-nonylphenol and di-2-ethylhexylphthalate, suppressed lymphocyte mitogenesis at the concentration of 10(-6)-10(-5) M. We therefore suggest that estrogen may suppress lymphocyte mitogenesis through ERalpha in B and T cells.

PMID:
12119130
[Indexed for MEDLINE]

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