Circular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro

Xiaonan Xu, Zimu Wu, Hongyan Qiu, Jun Wu Department of Neurology, Peking University Shenzhen Hospital, Shenzhen 518000, Guangdong Province, People’s Republic of ChinaCorrespondence: Jun Wu Email junwu_2000@126.comObjective: Brain microvascular endothelial cells (BMECs) are involved in brai...

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Autores principales: Xu X, Wu Z, Qiu H, Wu J
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Publicado: Dove Medical Press 2021
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spelling oai:doaj.org-article:dcabeab54b96417eba9a9a90072e15a42021-12-02T13:51:18ZCircular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro1178-2021https://doaj.org/article/dcabeab54b96417eba9a9a90072e15a42021-01-01T00:00:00Zhttps://www.dovepress.com/circular-rna-circphc3-promotes-cell-death-and-apoptosis-in-human-bmecs-peer-reviewed-article-NDThttps://doaj.org/toc/1178-2021Xiaonan Xu, Zimu Wu, Hongyan Qiu, Jun Wu Department of Neurology, Peking University Shenzhen Hospital, Shenzhen 518000, Guangdong Province, People’s Republic of ChinaCorrespondence: Jun Wu Email junwu_2000@126.comObjective: Brain microvascular endothelial cells (BMECs) are involved in brain vascular dysfunction in ischemic stroke. Abnormal expression of circular RNAs regulate physiological and pathophysiological processes in the central nervous system. The aim of the present study was to investigate profile circRNAs in human BMECs after oxygen glucose deprivation (OGD), which was an in vitro model of ischemic stroke, and find promising biomarkers in ischemic stroke.Methods: RNA sequencing (RNA-seq) technology was conducted to analyze the differential expression of circRNAs between BMECs after OGD and non-OGD treated BMECs. RT-qPCR, cell proliferation, cell apoptosis and dual-luciferase assay, and so on, were used to investigate the functions and molecular mechanisms of hsa_circ_0001360 (named circPHC3 in this study) in ischemic stroke.Results: CircPHC3 was highly expressed in human BMECs after OGD. Knockdown of circPHC3 inhibited cell death and apoptosis in human BMECs treated with OGD. Mechanistically, circPHC3 acted as miR-455-5p sponge to activate TRAF3 to promote cell death and apoptosis in human BMECs after OGD.Conclusion: In short, circPHC3 promotes cell death and apoptosis in ischemic stroke in vitro model, which might be a novel molecular target for acute cerebrovascular protection.Keywords: ischemic stroke, circPHC3, TRAF3, miR-455-5pXu XWu ZQiu HWu JDove Medical Pressarticleischemic strokecircphc3traf3mir-455-5pNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571Neurology. Diseases of the nervous systemRC346-429ENNeuropsychiatric Disease and Treatment, Vol Volume 17, Pp 147-156 (2021)
institution DOAJ
collection DOAJ
language EN
topic ischemic stroke
circphc3
traf3
mir-455-5p
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
spellingShingle ischemic stroke
circphc3
traf3
mir-455-5p
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Neurology. Diseases of the nervous system
RC346-429
Xu X
Wu Z
Qiu H
Wu J
Circular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro
description Xiaonan Xu, Zimu Wu, Hongyan Qiu, Jun Wu Department of Neurology, Peking University Shenzhen Hospital, Shenzhen 518000, Guangdong Province, People’s Republic of ChinaCorrespondence: Jun Wu Email junwu_2000@126.comObjective: Brain microvascular endothelial cells (BMECs) are involved in brain vascular dysfunction in ischemic stroke. Abnormal expression of circular RNAs regulate physiological and pathophysiological processes in the central nervous system. The aim of the present study was to investigate profile circRNAs in human BMECs after oxygen glucose deprivation (OGD), which was an in vitro model of ischemic stroke, and find promising biomarkers in ischemic stroke.Methods: RNA sequencing (RNA-seq) technology was conducted to analyze the differential expression of circRNAs between BMECs after OGD and non-OGD treated BMECs. RT-qPCR, cell proliferation, cell apoptosis and dual-luciferase assay, and so on, were used to investigate the functions and molecular mechanisms of hsa_circ_0001360 (named circPHC3 in this study) in ischemic stroke.Results: CircPHC3 was highly expressed in human BMECs after OGD. Knockdown of circPHC3 inhibited cell death and apoptosis in human BMECs treated with OGD. Mechanistically, circPHC3 acted as miR-455-5p sponge to activate TRAF3 to promote cell death and apoptosis in human BMECs after OGD.Conclusion: In short, circPHC3 promotes cell death and apoptosis in ischemic stroke in vitro model, which might be a novel molecular target for acute cerebrovascular protection.Keywords: ischemic stroke, circPHC3, TRAF3, miR-455-5p
format article
author Xu X
Wu Z
Qiu H
Wu J
author_facet Xu X
Wu Z
Qiu H
Wu J
author_sort Xu X
title Circular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro
title_short Circular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro
title_full Circular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro
title_fullStr Circular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro
title_full_unstemmed Circular RNA circPHC3 Promotes Cell Death and Apoptosis in Human BMECs After Oxygen Glucose Deprivation via miR-455-5p/TRAF3 Axis in vitro
title_sort circular rna circphc3 promotes cell death and apoptosis in human bmecs after oxygen glucose deprivation via mir-455-5p/traf3 axis in vitro
publisher Dove Medical Press
publishDate 2021
url https://doaj.org/article/dcabeab54b96417eba9a9a90072e15a4
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