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Open Autoimmun J. 2010 Jan 1;2:197-204.

Tissue-Dependent Expression of Estrogen Receptor β in 17β-Estradiol-Mediated Attenuation of Autoimmune CNS Inflammation.

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  • 1Department of Neurology, Oregon Health & Science University, Portland VA Medical Center, Oregon USA.

Abstract

Treatment strategies using therapeutic estrogen are being developed and tested for multiple sclerosis (MS). MS is an autoimmune inflammatory disease that attacks the central nervous system, damages myelin and produces neurode-generative changes associated with periodic and chronic progression of functional neurological deficit. Experimental studies in chimeric bone marrow transplant mice treated with 17β-estradiol (E2) have revealed that the estrogen receptor-1 (Esr-1, or -alpha) expressed exclusively within the non-hematopoietic tissue compartment is sufficient for mediating a beneficial neuroprotective therapeutic response in mice lacking Esr-1 expression on T lymphocytes or other bone marrow-derived cells. Less is known regarding requirements for estrogen receptor-2 (Esr-2, or -beta) expression in E2-mediated therapy. Here, we tested and compared requirements for Esr-2 expression within distinct tissue compartments in bone marrow transplant mice. Our studies support a crucial role for Esr-1 in E2 treatment and demonstrate that Esr-2 expressed by non-bone marrow-derived cells plays a role in sustaining the neuroprotective response mediated through Esr-1.

PMID:
22242109
[PubMed]
PMCID:
PMC3254147
Free PMC Article
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