Estrogen and testosterone secretion from the mouse brain

Vajaria, R., Davis, D., Thaweepanyaporn, K., Dovey, J., Nasuto, S. ORCID: https://orcid.org/0000-0001-9414-9049, Delivopoulos, E. ORCID: https://orcid.org/0000-0001-6156-1133, Tamagnini, F. ORCID: https://orcid.org/0000-0002-8741-5094, Knight, P. ORCID: https://orcid.org/0000-0003-0300-1554 and Vasudevan, N. ORCID: https://orcid.org/0000-0003-4326-3938 (2024) Estrogen and testosterone secretion from the mouse brain. Steroids, 204. 109398. ISSN 1878-5867 doi: 10.1016/j.steroids.2024.109398

Abstract/Summary

Estrogen and testosterone are typically thought of as gonadal or adrenal derived steroids that cross the blood brain barrier to signal via both rapid nongenomic and slower genomic signalling pathways. Estrogen and testosterone signalling has been shown to drive interlinked behaviours such as social behaviours and cognition by binding to their cognate receptors in hypothalamic and forebrain nuclei. So far, acute brain slices have been used to study short-term actions of 17β-estradiol, typically using electrophysiological measures. For example, these techniques have been used to investigate, nongenomic signalling by estrogen such as the estrogen modulation of long-term potentiation (LTP) in the hippocampus. Using a modified method that preserves the slice architecture, we show, for the first time, that acute coronal slices from the prefrontal cortex and from the hypothalamus maintained in aCSF over longer periods i.e. 24 h can be steroidogenic, increasing their secretion of testosterone and estrogen. We also show that the hypothalamic nuclei produce more estrogen and testosterone than the prefrontal cortex. Therefore, this extended acute slice system can be used to study the regulation of steroid production and secretion by discrete nuclei in the brain.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/116003
Identification Number/DOI	10.1016/j.steroids.2024.109398
Refereed	Yes
Divisions	Life Sciences > School of Biological Sciences > Biomedical Sciences Life Sciences > School of Biological Sciences > Department of Bio-Engineering Life Sciences > School of Chemistry, Food and Pharmacy > School of Pharmacy > Division of Pharmacology
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