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VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States
The translocator protein (TSPO), located at the outer mitochondrial membrane (OMM), serves multiple functions and contributes to numerous processes, including cholesterol import, mitochondrial metabolism, apoptosis, cell proliferation, Ca(2+) signaling, oxidative stress, and inflammation. TSPO forms...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6651789/ https://www.ncbi.nlm.nih.gov/pubmed/31288390 http://dx.doi.org/10.3390/ijms20133348 |
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author | Shoshan-Barmatz, Varda Pittala, Srinivas Mizrachi, Dario |
author_facet | Shoshan-Barmatz, Varda Pittala, Srinivas Mizrachi, Dario |
author_sort | Shoshan-Barmatz, Varda |
collection | PubMed |
description | The translocator protein (TSPO), located at the outer mitochondrial membrane (OMM), serves multiple functions and contributes to numerous processes, including cholesterol import, mitochondrial metabolism, apoptosis, cell proliferation, Ca(2+) signaling, oxidative stress, and inflammation. TSPO forms a complex with the voltage-dependent anion channel (VDAC), a protein that mediates the flux of ions, including Ca(2+), nucleotides, and metabolites across the OMM, controls metabolism and apoptosis and interacts with many proteins. This review focuses on the two OMM proteins TSPO and VDAC1, addressing their structural interaction and associated functions. TSPO appears to be involved in the generation of reactive oxygen species, proposed to represent the link between TSPO activation and VDAC, thus playing a role in apoptotic cell death. In addition, expression of the two proteins in healthy brains and diseased states is considered, as is the relationship between TSPO and VDAC1 expression. Both proteins are over-expressed in in brains from Alzheimer’s disease patients. Finally, TSPO expression levels were proposed as a biomarker of some neuropathological settings, while TSPO-interacting ligands have been considered as a potential basis for drug development. |
format | Online Article Text |
id | pubmed-6651789 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-66517892019-08-08 VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States Shoshan-Barmatz, Varda Pittala, Srinivas Mizrachi, Dario Int J Mol Sci Review The translocator protein (TSPO), located at the outer mitochondrial membrane (OMM), serves multiple functions and contributes to numerous processes, including cholesterol import, mitochondrial metabolism, apoptosis, cell proliferation, Ca(2+) signaling, oxidative stress, and inflammation. TSPO forms a complex with the voltage-dependent anion channel (VDAC), a protein that mediates the flux of ions, including Ca(2+), nucleotides, and metabolites across the OMM, controls metabolism and apoptosis and interacts with many proteins. This review focuses on the two OMM proteins TSPO and VDAC1, addressing their structural interaction and associated functions. TSPO appears to be involved in the generation of reactive oxygen species, proposed to represent the link between TSPO activation and VDAC, thus playing a role in apoptotic cell death. In addition, expression of the two proteins in healthy brains and diseased states is considered, as is the relationship between TSPO and VDAC1 expression. Both proteins are over-expressed in in brains from Alzheimer’s disease patients. Finally, TSPO expression levels were proposed as a biomarker of some neuropathological settings, while TSPO-interacting ligands have been considered as a potential basis for drug development. MDPI 2019-07-08 /pmc/articles/PMC6651789/ /pubmed/31288390 http://dx.doi.org/10.3390/ijms20133348 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Shoshan-Barmatz, Varda Pittala, Srinivas Mizrachi, Dario VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States |
title | VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States |
title_full | VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States |
title_fullStr | VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States |
title_full_unstemmed | VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States |
title_short | VDAC1 and the TSPO: Expression, Interactions, and Associated Functions in Health and Disease States |
title_sort | vdac1 and the tspo: expression, interactions, and associated functions in health and disease states |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6651789/ https://www.ncbi.nlm.nih.gov/pubmed/31288390 http://dx.doi.org/10.3390/ijms20133348 |
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