NDLI: Progesterone Attenuates Aquaporin-4 Expression in an Astrocyte Model of Ischemia/Reperfusion

Content Provider	Springer Nature Link
Author	He, Lu Zhang, Xiaoyang Wei, Xianfeng Li, Yunsheng
Copyright Year	2014
Abstract	Previous studies have suggested that progesterone may be involved in neuroprotection by preventing brain edema. In this study, we assessed the effects of progesterone on aquaporin-4 (AQP4) expression in an ischemia/reperfusion model of cultured rat astrocytes, and further explored the possible role of the protein kinase C (PKC) pathway in this course. We evaluate primary culture astrocytes exposed to 4 h oxygen–glucose deprivation (OGD) followed by 24 h reperfusion (OGD4h/R24h) as a means of simulating cortex ischemia and reperfusion, and test the effect of progesterone on AQP4 expression in response to OGD4h/R24h. Besides, the cell viability was assessed by MTT reduction and lactate dehydrogenase release assay, accompanied by cell morphology survey. At a concentration of 1 and 2 μM, progesterone significantly attenuated AQP4 at the level of both protein and mRNA and ameliorated the cell viability of astrocytes from OGD/reperfusion injury. Moreover, this effect was blocked by the PKC inhibitor Ro31-8220, which was employed before the OGD. These results indicate that progesterone exerts the protective effects and attenuates AQP4 expression in an astrocyte model of ischemia/reperfusion depending on the PKC signal pathway.
Starting Page	2251
Ending Page	2261
Page Count	11
File Format	PDF
ISSN	03643190
Journal	Neurochemical Research
Volume Number	39
Issue Number	11
e-ISSN	15736903
Language	English
Publisher	Springer US
Publisher Date	2014-09-09
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Progesterone Aquaporin-4 Oxygen–glucose deprivation Astrocytes Protein kinase C Neurosciences Neurochemistry Biochemistry Cell Biology Neurology
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Cellular and Molecular Neuroscience

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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