Acetaldehyde Induces Cytotoxicity of SH-SY5Y Cells via Inhibition of Akt Activation and Induction of Oxidative Stress
Joint Authors
Yan, Tingting
Zhang, Xia
Zhao, Yan
Source
Oxidative Medicine and Cellular Longevity
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-11-16
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Excessive alcohol consumption can lead to brain tissue damage and cognitive dysfunction.
It has been shown that heavy drinking is associated with an earlier onset of neurodegenerative diseases such as Alzheimer’s disease.
Acetaldehyde, the most toxic metabolite of ethanol, is speculated to mediate the brain tissue damage and cognitive dysfunction induced by the chronic excessive consumption of alcohol.
However, the exact mechanisms by which acetaldehyde induces neurotoxicity are not totally understood.
In this study, we investigated the cytotoxic effects of acetaldehyde in SH-SY5Y cells and found that acetaldehyde induced apoptosis of SH-SY5Y cells by downregulating the expression of antiapoptotic Bcl-2 and Bcl-xL and upregulating the expression of proapoptotic Bax.
Acetaldehyde treatment led to a significant decrease in the levels of activated Akt and cyclic AMP-responsive element binding protein (CREB).
In addition, acetaldehyde induced the activation of p38 mitogen-activated protein kinase (MAPK) while inhibiting the activation of extracellular signal-regulated kinases (ERKs, p44/p42MAPK).
Meanwhile, acetaldehyde treatment caused an increase in the production of reactive oxygen species and elevated the oxidative stress in SH-SY5Y cells.
Therefore, acetaldehyde induces cytotoxicity of SH-SY5Y cells via promotion of apoptotic signaling, inhibition of cell survival pathway, and induction of oxidative stress.
American Psychological Association (APA)
Yan, Tingting& Zhao, Yan& Zhang, Xia. 2015. Acetaldehyde Induces Cytotoxicity of SH-SY5Y Cells via Inhibition of Akt Activation and Induction of Oxidative Stress. Oxidative Medicine and Cellular Longevity،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1113924
Modern Language Association (MLA)
Yan, Tingting…[et al.]. Acetaldehyde Induces Cytotoxicity of SH-SY5Y Cells via Inhibition of Akt Activation and Induction of Oxidative Stress. Oxidative Medicine and Cellular Longevity No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1113924
American Medical Association (AMA)
Yan, Tingting& Zhao, Yan& Zhang, Xia. Acetaldehyde Induces Cytotoxicity of SH-SY5Y Cells via Inhibition of Akt Activation and Induction of Oxidative Stress. Oxidative Medicine and Cellular Longevity. 2015. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1113924
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1113924