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Steroid receptors in various glial cell lines expression and functional studies
Francoise Cadepond1, Charbel Massaad, Amalia Trousson
1INSERM U488, 80 rue du Général Leclerc, 94276 Le Kremlin-Bicêtre, France. cadepond@kb.inserm.fr
Annals of the New York Academy of Sciences
|December 18, 2002
Summary
Glial cells in the central and peripheral nervous systems express functional glucocorticoid receptors (GR). Mineralocorticosteroid receptors were detected but showed no significant activity in these cells.
Area of Science:
- Neuroscience
- Molecular Biology
- Endocrinology
Background:
- Glial cells play crucial roles in nervous system function.
- Steroid hormone receptors are important regulators of cellular processes.
Purpose of the Study:
- To investigate the expression and activity of steroid hormone receptors in glial cell lines.
- To determine the presence and functionality of glucocorticoid and mineralocorticosteroid receptors in both central and peripheral glial cells.
Main Methods:
- Analysis of messenger RNA (mRNA) expression for steroid receptors in various glial cell lines.
- Assessment of receptor binding and transcriptional activity.
Main Results:
- Glucocorticoid receptor (GR) mRNA was detected in all tested glial cell lines (CG4, C6, MSC80, CR3a1, CR1b4).
- Significant GR binding and transcriptional activity were confirmed.
- Mineralocorticosteroid receptor mRNA was less abundant and showed no corresponding binding or transcriptional activity.
- Other steroid receptors were not significantly detected.
Conclusions:
- Glial cells from both the central and peripheral nervous systems possess functional glucocorticoid receptors.
- The findings suggest a potential role for glucocorticoids in regulating glial cell function.