Effects of Cigarette Smoke on TSPO-related Mitochondrial Processes
The 18 kDa translocator protein (TSPO) is an initiator of the mitochondrial apoptosis cascade. Cigarette smoke (CS) exposure provokes alterations in TSPO expression as well as upregulation of its related functions such as mitochondrial membrane potential (Δψ<sub>M</sub>...
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doaj-52a1675a7f254126a7a45374983a4d032020-11-25T02:46:16ZengMDPI AGCells2073-44092019-07-018769410.3390/cells8070694cells8070694Effects of Cigarette Smoke on TSPO-related Mitochondrial ProcessesNidal Zeineh0Rafael Nagler1Martin Gabay2Abraham Weizman3Moshe Gavish4The Ruth and Bruce Rappaport Faculty of Medicine, Technion Institute of Technology, Haifa 31096, IsraelThe Ruth and Bruce Rappaport Faculty of Medicine, Technion Institute of Technology, Haifa 31096, IsraelThe Ruth and Bruce Rappaport Faculty of Medicine, Technion Institute of Technology, Haifa 31096, IsraelResearch Unit at Geha Mental Health Center and Laboratory of Biological Psychiatry at Felsenstein Medical Research Center, Petah Tikva 4910002, IsraelThe Ruth and Bruce Rappaport Faculty of Medicine, Technion Institute of Technology, Haifa 31096, IsraelThe 18 kDa translocator protein (TSPO) is an initiator of the mitochondrial apoptosis cascade. Cigarette smoke (CS) exposure provokes alterations in TSPO expression as well as upregulation of its related functions such as mitochondrial membrane potential (Δψ<sub>M</sub>) and reactive oxygen species generation, which are associated with cell death. In the current study, H1299 lung cancer cell line exposed to CS for various time periods (30 mins, 60 mins and 120 mins) and TSPO expression and cell death processes were studied. CS exposure for 30 mins resulted in a non-significant increase in TSPO expression by 24% (<i>p</i> > 0.05 vs. control). CS exposure for 60 mins and 120 mins resulted in a significant increase by 43% (<i>p</i> < 0.05 vs. control) and by 47% (<i>p</i> < 0.01 vs. control), respectively. Furthermore, TSPO-related mitochondrial functions were upregulated at the 120 mins time point following CS exposure. TSPO expression is upregulated by CS, suggesting that TSPO plays a role in cell death processes induced by CS exposure. Alterations in TSPO-related cell death processes suggest that TSPO may be involved in the tissue damage caused by CS.https://www.mdpi.com/2073-4409/8/7/694TSPOcAMPcigarette smokemitochondrial membrane potentialROSapoptosisnecrosiscell death |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nidal Zeineh Rafael Nagler Martin Gabay Abraham Weizman Moshe Gavish |
spellingShingle |
Nidal Zeineh Rafael Nagler Martin Gabay Abraham Weizman Moshe Gavish Effects of Cigarette Smoke on TSPO-related Mitochondrial Processes Cells TSPO cAMP cigarette smoke mitochondrial membrane potential ROS apoptosis necrosis cell death |
author_facet |
Nidal Zeineh Rafael Nagler Martin Gabay Abraham Weizman Moshe Gavish |
author_sort |
Nidal Zeineh |
title |
Effects of Cigarette Smoke on TSPO-related Mitochondrial Processes |
title_short |
Effects of Cigarette Smoke on TSPO-related Mitochondrial Processes |
title_full |
Effects of Cigarette Smoke on TSPO-related Mitochondrial Processes |
title_fullStr |
Effects of Cigarette Smoke on TSPO-related Mitochondrial Processes |
title_full_unstemmed |
Effects of Cigarette Smoke on TSPO-related Mitochondrial Processes |
title_sort |
effects of cigarette smoke on tspo-related mitochondrial processes |
publisher |
MDPI AG |
series |
Cells |
issn |
2073-4409 |
publishDate |
2019-07-01 |
description |
The 18 kDa translocator protein (TSPO) is an initiator of the mitochondrial apoptosis cascade. Cigarette smoke (CS) exposure provokes alterations in TSPO expression as well as upregulation of its related functions such as mitochondrial membrane potential (Δψ<sub>M</sub>) and reactive oxygen species generation, which are associated with cell death. In the current study, H1299 lung cancer cell line exposed to CS for various time periods (30 mins, 60 mins and 120 mins) and TSPO expression and cell death processes were studied. CS exposure for 30 mins resulted in a non-significant increase in TSPO expression by 24% (<i>p</i> > 0.05 vs. control). CS exposure for 60 mins and 120 mins resulted in a significant increase by 43% (<i>p</i> < 0.05 vs. control) and by 47% (<i>p</i> < 0.01 vs. control), respectively. Furthermore, TSPO-related mitochondrial functions were upregulated at the 120 mins time point following CS exposure. TSPO expression is upregulated by CS, suggesting that TSPO plays a role in cell death processes induced by CS exposure. Alterations in TSPO-related cell death processes suggest that TSPO may be involved in the tissue damage caused by CS. |
topic |
TSPO cAMP cigarette smoke mitochondrial membrane potential ROS apoptosis necrosis cell death |
url |
https://www.mdpi.com/2073-4409/8/7/694 |
work_keys_str_mv |
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