NDLI: Hypoxia Signaling Regulates Macrophage Migration Inhibitory Factor (MIF) Expression in Stroke

Content Provider	Springer Nature Link
Author	Zis, Odysseus Zhang, Si Dorovini Zis, Katerina Wang, Lijuan Song, Weihong
Copyright Year	2014
Abstract	The macrophage migration inhibitory factor (MIF) is a multifaceted cytokine involved in many processes, including cellular responses to ischemia/reperfusion injury in the heart and brain. This study was undertaken to determine whether human MIF expression is induced following cerebral ischemia and its role therein. To examine whether the induction of MIF gene expression was mediated by its transcriptional upregulation, the human MIF gene promoter was cloned and a luciferase assay was used to determine the presence of a hypoxia-responsive region in the human MIF promoter. We found that human MIF promoter activity was significantly upregulated by hypoxia. A functional hypoxia-inducible factor 1α-binding site was identified using an electrophoretic mobility shift assay (EMSA). MIF has a protective effect on cortical neurons under oxygen-glucose deprivation (OGD) treatment. MIF significantly reduced OGD-induced cell death. To determine whether the expression of MIF in the human brain is altered following ischemia, brain sections from 10 stroke patients were examined with an antibody against MIF. Blood vessel endothelial cells in the peri-infarct region of ischemic brain displayed strong MIF immunoreactivity with no MIF immunoreactivity in control brains. Furthermore, we found that treatment of human brain endothelial cells with MIF had no effect on human monocyte adhesion to endothelium. Our study demonstrates that MIF gene expression is altered during stroke and dysregulation of the hypoxia signaling-induced MIF expression plays an important role in neuronal death in stroke.
Starting Page	155
Ending Page	167
Page Count	13
File Format	PDF
ISSN	08937648
Journal	Molecular Neurobiology
Volume Number	51
Issue Number	1
e-ISSN	15591182
Language	English
Publisher	Springer US
Publisher Date	2014-05-15
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Stroke MIF Hypoxia Neurosciences Neurobiology Cell Biology Neurology
Content Type	Text
Resource Type	Article
Subject	Neurology 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
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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