Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway
Microglial cells are the primary immune cell resident in the brain. Growing evidence indicates that microglial cells play a prominent role in alcohol-induced brain pathologies. However, alcohol-induced effects on microglial cells and the underlying mechanisms are not fully understood, and evidence e...
Saved in:
Main Authors: | , , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2020
|
Online Access: | http://psasir.upm.edu.my/id/eprint/88851/1/ABSTRACT.pdf http://psasir.upm.edu.my/id/eprint/88851/ https://www.mdpi.com/2076-3921/9/12/1253 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.upm.eprints.88851 |
---|---|
record_format |
eprints |
spelling |
my.upm.eprints.888512021-11-02T20:34:21Z http://psasir.upm.edu.my/id/eprint/88851/ Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway Sha’fie, Muhammad Syahreel Azhad Rathakrishnan, Sharani Hazanol, Iffa Nadhira Mohd Dali, Mohd Haziq Izzazuddin Khayat, Mohd Ezuan Ahmad, Syahida Hussin, Yazmin Alitheen, Noorjahan Banu Jiang, Lin Hua Syed Mortadza, Sharifah Alawieyah Microglial cells are the primary immune cell resident in the brain. Growing evidence indicates that microglial cells play a prominent role in alcohol-induced brain pathologies. However, alcohol-induced effects on microglial cells and the underlying mechanisms are not fully understood, and evidence exists to support generation of oxidative stress due to NADPH oxidases (NOX_-mediated production of reactive oxygen species (ROS). Here, we investigated the role of the oxidative stress-sensitive Ca2+-permeable transient receptor potential melastatin-related 2 (TRPM2) channel in ethanol (EtOH)-induced microglial cell death using BV2 microglial cells. Like H2O2, exposure to EtOH induced concentration-dependent cell death, assessed using a propidium iodide assay. H2O2/EtOH-induced cell death was inhibited by treatment with TRPM2 channel inhibitors and also treatment with poly(ADP-ribose) polymerase (PARP) inhibitors, demonstrating the critical role of PARP and the TRPM2 channel in EtOH-induced cell death. Exposure to EtOH, as expected, led to an increase in ROS production, shown using imaging of 2’,7’-dichlorofluorescein fluorescence. Consistently, EtOH-induced microglial cell death was suppressed by inhibition of NADPH oxidase (NOX) as well as inhibition of protein kinase C. Taken together, our results suggest that exposure to high doses of ethanol can induce microglial cell death via the NOX/ROS/PARP/TRPM2 signaling pathway, providing novel and potentially important insights into alcohol-induced brain pathologies. Multidisciplinary Digital Publishing Institute 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88851/1/ABSTRACT.pdf Sha’fie, Muhammad Syahreel Azhad and Rathakrishnan, Sharani and Hazanol, Iffa Nadhira and Mohd Dali, Mohd Haziq Izzazuddin and Khayat, Mohd Ezuan and Ahmad, Syahida and Hussin, Yazmin and Alitheen, Noorjahan Banu and Jiang, Lin Hua and Syed Mortadza, Sharifah Alawieyah (2020) Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway. Antioxidants, 9 (12). 1253 - 1262. ISSN 2076-3921 https://www.mdpi.com/2076-3921/9/12/1253 10.3390/antiox9121253 |
institution |
Universiti Putra Malaysia |
building |
UPM Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Putra Malaysia |
content_source |
UPM Institutional Repository |
url_provider |
http://psasir.upm.edu.my/ |
language |
English |
description |
Microglial cells are the primary immune cell resident in the brain. Growing evidence indicates that microglial cells play a prominent role in alcohol-induced brain pathologies. However, alcohol-induced effects on microglial cells and the underlying mechanisms are not fully understood, and evidence exists to support generation of oxidative stress due to NADPH oxidases (NOX_-mediated production of reactive oxygen species (ROS). Here, we investigated the role of the oxidative stress-sensitive Ca2+-permeable transient receptor potential melastatin-related 2 (TRPM2) channel in ethanol (EtOH)-induced microglial cell death using BV2 microglial cells. Like H2O2, exposure to EtOH induced concentration-dependent cell death, assessed using a propidium iodide assay. H2O2/EtOH-induced cell death was inhibited by treatment with TRPM2 channel inhibitors and also treatment with poly(ADP-ribose) polymerase (PARP) inhibitors, demonstrating the critical role of PARP and the TRPM2 channel in EtOH-induced cell death. Exposure to EtOH, as expected, led to an increase in ROS production, shown using imaging of 2’,7’-dichlorofluorescein fluorescence. Consistently, EtOH-induced microglial cell death was suppressed by inhibition of NADPH oxidase (NOX) as well as inhibition of protein kinase C. Taken together, our results suggest that exposure to high doses of ethanol can induce microglial cell death via the NOX/ROS/PARP/TRPM2 signaling pathway, providing novel and potentially important insights into alcohol-induced brain pathologies. |
format |
Article |
author |
Sha’fie, Muhammad Syahreel Azhad Rathakrishnan, Sharani Hazanol, Iffa Nadhira Mohd Dali, Mohd Haziq Izzazuddin Khayat, Mohd Ezuan Ahmad, Syahida Hussin, Yazmin Alitheen, Noorjahan Banu Jiang, Lin Hua Syed Mortadza, Sharifah Alawieyah |
spellingShingle |
Sha’fie, Muhammad Syahreel Azhad Rathakrishnan, Sharani Hazanol, Iffa Nadhira Mohd Dali, Mohd Haziq Izzazuddin Khayat, Mohd Ezuan Ahmad, Syahida Hussin, Yazmin Alitheen, Noorjahan Banu Jiang, Lin Hua Syed Mortadza, Sharifah Alawieyah Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway |
author_facet |
Sha’fie, Muhammad Syahreel Azhad Rathakrishnan, Sharani Hazanol, Iffa Nadhira Mohd Dali, Mohd Haziq Izzazuddin Khayat, Mohd Ezuan Ahmad, Syahida Hussin, Yazmin Alitheen, Noorjahan Banu Jiang, Lin Hua Syed Mortadza, Sharifah Alawieyah |
author_sort |
Sha’fie, Muhammad Syahreel Azhad |
title |
Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway |
title_short |
Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway |
title_full |
Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway |
title_fullStr |
Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway |
title_full_unstemmed |
Ethanol induces microglial cell death via the NOX/ROS/PARP/TRPM2 signalling pathway |
title_sort |
ethanol induces microglial cell death via the nox/ros/parp/trpm2 signalling pathway |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
http://psasir.upm.edu.my/id/eprint/88851/1/ABSTRACT.pdf http://psasir.upm.edu.my/id/eprint/88851/ https://www.mdpi.com/2076-3921/9/12/1253 |
_version_ |
1717095413104771072 |
score |
13.160551 |