Progesterone inhibition of neuronal calcium signaling underlies aspects of progesterone-mediated neuroprotection

Jessie I. Luoma, Christopher M. Stern, Paul G. Mermelstein

Research output: Contribution to journalReview articlepeer-review

29 Scopus citations

Abstract

Progesterone is being utilized as a therapeutic means to ameliorate neuron loss and cognitive dysfunction following traumatic brain injury. Although there have been numerous attempts to determine the means by which progesterone exerts neuroprotective effects, studies describing the underlying molecular mechanisms are lacking. What has become clear, however, is the notion that progesterone can thwart several physiological processes that are detrimental to neuron function and survival, including inflammation, edema, demyelination and excitotoxicity. One clue regarding the means by which progesterone has restorative value comes from the notion that these aforementioned biological processes all share the common theme of eliciting pronounced increases in intracellular calcium. Thus, we propose the hypothesis that progesterone regulation of calcium signaling underlies its ability to mitigate these cellular insults, ultimately leading to neuroprotection. Further, we describe recent findings that indicate neuroprotection is achieved via progesterone block of voltage-gated calcium channels, although additional outcomes may arise from blockade of various other ion channels and neurotransmitter receptors. This article is part of a Special Issue entitled 'Neurosteroids'.

Original languageEnglish (US)
Pages (from-to)30-36
Number of pages7
JournalJournal of Steroid Biochemistry and Molecular Biology
Volume131
Issue number1-2
DOIs
StatePublished - Aug 2012

Bibliographical note

Funding Information:
This work is supported by the National Institutes of Health NS41302 (PGM).

Keywords

  • Brain Injury
  • Calcium
  • Excitotoxicity
  • Ischemia
  • Neuroprotection
  • Progesterone

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