Zagazig University Digital Repository
Home
Thesis & Publications
All Contents
Publications
Thesis
Graduation Projects
Research Area
Research Area Reports
Search by Research Area
Universities Thesis
ACADEMIC Links
ACADEMIC RESEARCH
Zagazig University Authors
Africa Research Statistics
Google Scholar
Research Gate
Researcher ID
CrossRef
Conditional Deletion of EphA4 on Cx3cr1- Expressing Microglia Fails to Influence Histopathological Outcome and Blood Brain Barrier Disruption Following Brain Injury
Faculty
Pharmacy
Year:
2021
Type of Publication:
ZU Hosted
Pages:
Authors:
Eman Salah Abdelaziz Souliman
Staff Zu Site
Abstract In Staff Site
Journal:
Front Mol Neurosci Front Mol Neurosci
Volume:
Keywords :
Conditional Deletion , EphA4 , Cx3cr1- Expressing Microglia Fails
Abstract:
Erythropoietin-producing human hepatocellular receptors play a major role in central nervous system injury. Preclinical and clinical studies revealed the upregulation of erythropoietin-producing human hepatocellular A4 (EphA4) receptors in the brain after acute traumatic brain injury. We have previously reported that Cx3cr1-expressing cells in the peri-lesion show high levels of EphA4 after the induction of controlled cortical impact (CCI) injury in mice. Cx3cr1 is a fractalkine receptor expressed on both resident microglia and peripheral-derived macrophages. The current study aimed to determine the role of microglial-specific EphA4 in CCI-induced damage. We used Cx3cr1CreER/+ knockin/ knock-out mice, which express EYFP in Cx3cr1-positive cells to establish microglia, EphA4-deficient mice following 1-month tamoxifen injection. Consistent with our previous findings, induction of CCI in wild-type (WT) Cx3cr1CreER/+EphA4+/+ mice increased EphA4 expression on EYFP-positive cells in the peri-lesion. To distinguish between peripheral-derived macrophages and resident microglia, we exploited GFP bone marrowchimeric mice and found that CCI injury increased EphA4 expression in microglia (TMEM119+GFP–) using immunohistochemistry. Using Cx3cr1CreER/+EphA4 f/f (KO) mice, we observed that the EphA4 mRNA transcript was undetected in microglia but remained present in whole blood when compared to WT. Finally, we found no difference in lesion volume or blood-brain barrier (BBB) disruption between WT and KO mice at 3 dpi. Our data demonstrate a nonessential role of microglial EphA4 in the acute histopathological outcome in response to CCI.
Author Related Publications
Eman Salah Abdelaziz Souliman, "Synthesis and Evaluation of the Novel Prostamide, 15-Deoxy, Δ12,14-Prostamide J2, as a Selective Antitumor Therapeutic", American Associatiion of Cancer Research, 2017
More
Eman Salah Abdelaziz Souliman, "Cannabinoids Modulate Neuronal Activity and Cancer by CB1 and CB2 Receptor-Independent Mechanisms", Experimental Pharmacology and drug discovery, 2017
More
Eman Salah Abdelaziz Souliman, "Arachidonoyl-ethanolamide activates endoplasmic reticulum stress-apoptosis in tumorigenic keratinocytes: Role of cyclooxygenase-2 and novel J-series prostamides.", wiley online library, 2016
More
Eman Salah Abdelaziz Souliman, "Receptor-dependent and receptor-independent endocannabinoid signaling: a therapeutic target for regulation of cancer growth.", Elsevier, 2013
More
Eman Salah Abdelaziz Souliman, "Anandamide-induced endoplasmic reticulum stress and apoptosis are mediated by oxidative stress in non-melanoma skin cancer: Receptor-independent endocannabinoid signaling.", wiley online library, 2016
More
Department Related Publications
Hanan Hamdy Mahmoud Ibrahiem, "Study on the Molecular Mechanisms Involved Renal tissue injury", لايوجد, 1900
More
Rasha Hassan Abdelghani Hassan , "Effect of lansoprazole on gastric secretion, prostaglandin £2 and plasma", لايوجد, 1900
More
Nabila Noureldeen Mostafa Elmaraghy, "Pharmacological Studies on the possible Interactions between Some Analgesics", لايوجد, 1900
More
Hany Mohamed Abdelmalek Mahmoud ElBassossy, "Heme oxygenase-1 induction protects against hypertension associated with diabetes: effect on exaggerated vascular contractility", Naunyn-Schmiedeberg's Archives of Pharmacology, 2013
More
Mohammed Nagieb Mohamed Zakarya Hassan , "Heme oxygenase-1 induction protects against hypertension associated with diabetes: effect on exaggerated vascular contractility", Naunyn-Schmiedeberg's Archives of Pharmacology, 2013
More
جامعة المنصورة
جامعة الاسكندرية
جامعة القاهرة
جامعة سوهاج
جامعة الفيوم
جامعة بنها
جامعة دمياط
جامعة بورسعيد
جامعة حلوان
جامعة السويس
شراقوة
جامعة المنيا
جامعة دمنهور
جامعة المنوفية
جامعة أسوان
جامعة جنوب الوادى
جامعة قناة السويس
جامعة عين شمس
جامعة أسيوط
جامعة كفر الشيخ
جامعة السادات
جامعة طنطا
جامعة بنى سويف