The novel estrogen receptor GPER1 decreases epilepsy severity and susceptivity in the hippocampus after status epilepticus.

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Abstract

The steroid hormone 17β-estradiol (estrogen) exerts neuroprotective effects in several types of neurological disorders including epilepsy. The novel G protein-coupled estrogen receptor 1 (GPER1), also called GPR30, mediates the non-genomic effects of 17β-estradiol. However, the specific role of GPER1 in status epilepticus (SE) remains unclear. In this report, we evaluated the effects of GPER1 on the hippocampus during SE and the underlying mechanism was studied. Our results revealed that pilocarpine-induced GPER1-KD epileptic rats exhibited a shorter latency to generalized convulsions and strikingly elevated seizure severity. Additionally, the electroencephalographic seizure activity also corresponded to these results. Fast-Fourier analysis indicated an enhancement of power in the theta and alpha bands during SE in GPER1-KD rats. In addition, epilepsy-induced pathological changes were dramatically exacerbated in GPER1-KD rats, including neuron damage and neuroinflammation in hippocampus. GPER1 might be associated with the susceptibility to and severity of epileptic seizures. In summary, our results suggested that GPER1 plays a neuroprotective role in SE, and might be a candidate target for epilepsy therapy.

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Author and article information

Journal

Journal ID (iso-abbrev): Neurosci. Lett.

Title: Neuroscience letters

Publisher: Elsevier BV

ISSN (Electronic): 1872-7972

ISSN (Print): 0304-3940

Publication date (Electronic): May 29 2020

Volume: 728

Affiliations

[1 ] Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of the National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, Ningxia 750001, China; School of Basic Medical Sciences, Ningxia Medical University, 1160 Shengli Street, Yinchuan, Ningxia 750001, China.

[2 ] Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of the National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, Ningxia 750001, China; Department of Neurosurgery, General Hospital of Ningxia Medical University, 804 Shengli Street, Yinchuan, Ningxia 750001, China.

[3 ] School of Basic Medical Sciences, Shanghai Jiao Tong University, Shanghai, 200240, China.

[4 ] Ningxia Key Laboratory of Cerebrocranial Diseases, Incubation Base of the National Key Laboratory, Ningxia Medical University, 1160 Shengli Street, Yinchuan, Ningxia 750001, China.

[5 ] School of Basic Medical Sciences, Ningxia Medical University, 1160 Shengli Street, Yinchuan, Ningxia 750001, China.

[6 ] School of Basic Medical Sciences, Ningxia Medical University, 1160 Shengli Street, Yinchuan, Ningxia 750001, China. Electronic address: xufang@nxmu.edu.cn.

Article

Publisher Item ID: S0304-3940(20)30248-2

DOI: 10.1016/j.neulet.2020.134978

PubMed ID: 32302699

SO-VID: da8e68ce-94dc-4449-8962-440326edaad4

History

Keywords: Neuroprotection,Neuroinflammation,GPER1,Epilepsy,Pilocarpine

Data availability:

Keywords: Neuroprotection, Neuroinflammation, GPER1, Epilepsy, Pilocarpine

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