Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

21 February 2019 : Laboratory Research  

Autophagy Induced by Oxygen-Glucose Deprivation Mediates the Injury to the Neurovascular Unit

Xinyang Zhang1BEF, Chen Fu2CD, Baoxin Chen3CF, Zhenmin Xu1BC, Zixiu Zeng1BD, Lijuan He3DF, Yan Lu4CD, Zhigang Chen3A, Xuemei Liu2ACDEFG*

DOI: 10.12659/MSM.915123

Med Sci Monit 2019; 25:1373-1382

Abstract

BACKGROUND: Autophagy is characterized by the degradation of cellular components in autophagosomes. It plays a significant role in cerebral ischemic injury and has a complex functional connection with apoptosis. The neurovascular unit (NVU) is a structural and functional unit of the nervous system presented as a therapeutic target of stroke. This study aimed to investigate the effect of autophagy induced by ischemic damage on NVUs.

MATERIAL AND METHODS: SH-SY5Y cells, C6 cells, and rat brain microvascular endothelial cells were cultured with oxygen-glucose deprivation (OGD) exposure for different time durations, and 3-methyladenine (3-MA) was added as an autophagy inhibitor. In all 3 cell lines, lactate dehydrogenase (LDH) release was measured. Furthermore, apoptosis was detected using Annexin V-fluorescein isothiocyanate/propidium iodide labeling and immunofluorescence staining. Autophagosomes were observed through AO/MDC (acridine orange/monodansycadaverine) double staining. LC3-II expression levels were evaluated by western blot analysis.

RESULTS: In the OGD groups of 3 cell lines, LDH leakage, and apoptotic rates were obviously increased. Remarkable increase in LC3-II expression was found in the OGD groups of SH-SY5Y cells and C6 cells. However, 3-MA decreased the LC3-II expression to varying degrees.

CONCLUSIONS: OGD could induce the over-activation of autophagy and augment the apoptotic activity in neurons and glial cells of NVUs.

Keywords: Autophagy, Hypoxia-Ischemia, Brain, Stroke, Adenine, Apoptosis, Cell Hypoxia, Cell Line, Cell Survival, Cells, Cultured, Cerebral Cortex, endothelial cells, Glucose, Myocytes, Smooth Muscle, Neurons, Neurovascular Coupling, Oxygen

Comments

Editorial

04 June 2022 : Editorial  

Editorial: Acute Hepatitis of Unknown Origin in Children. Is Autoimmunity at Play?

Nahum Mendez-Sanchez, Shreya C. Pal
Faculty of Medicine, National Autonomous University of Mexico, Mexico City, Mexico

DOI: 10.12659/MSM.937371

Med Sci Monit 2022; 28:e937371

In Press

23 Jun 2022 : Clinical Research  

A Real-World Study to Compare the Safety and Efficacy of Paritaprevir/Ombitasvir/Ritonavir and Dasabuvir, w...

Med Sci Monit In Press; DOI: 10.12659/MSM.936706  

22 Jun 2022 : Clinical Research  

A Single-Center Study Comparing the Effects of Thoracic Spine Manipulation vs Mobility Exercises in 26 Offi...

Med Sci Monit In Press; DOI: 10.12659/MSM.937316  

21 Jun 2022 : Clinical Research  

Optimal Timing and Outcomes of Minimally Invasive Approach in Acute Biliary Pancreatitis

Med Sci Monit In Press; DOI: 10.12659/MSM.937016  

16 Jun 2022 : Clinical Research  

Renal Manifestations in Inflammatory Bowel Disease: A Cohort Study During the Biologic Era

Med Sci Monit In Press; DOI: 10.12659/MSM.936497  

Most Viewed Current Articles

30 Dec 2021 : Clinical Research  

Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...

DOI :10.12659/MSM.935379

Med Sci Monit 2021; 27:e935379

08 Mar 2022 : Review article  

A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...

DOI :10.12659/MSM.936292

Med Sci Monit 2022; 28:e936292

01 Nov 2020 : Review article  

Long-Term Respiratory and Neurological Sequelae of COVID-19

DOI :10.12659/MSM.928996

Med Sci Monit 2020; 26:e928996

01 Jan 2022 : Editorial  

Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...

DOI :10.12659/MSM.935952

Med Sci Monit 2022; 28:e935952

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750