Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer Cachexia

Uncoupling proteins (UCPs) are identified as carriers of proton ions between the mitochondrial inner membrane and the mitochondrial matrix. ATP is mainly generated through oxidative phosphorylation in mitochondria. The proton gradient is generated across the inner mitochondrial membrane and the mito...

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Main Authors: Mit Joshi, Bhoomika M. Patel
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/15/5/1407
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author Mit Joshi
Bhoomika M. Patel
author_facet Mit Joshi
Bhoomika M. Patel
author_sort Mit Joshi
collection DOAJ
description Uncoupling proteins (UCPs) are identified as carriers of proton ions between the mitochondrial inner membrane and the mitochondrial matrix. ATP is mainly generated through oxidative phosphorylation in mitochondria. The proton gradient is generated across the inner mitochondrial membrane and the mitochondrial matrix, which facilitates a smooth transfer of electrons across ETC complexes. Until now, it was thought that the role of UCPs was to break the electron transport chain and thereby inhibit the synthesis of ATP. UCPs allow protons to pass from the inner mitochondrial membrane to the mitochondrial matrix and decrease the proton gradient across the membrane, which results in decreased ATP synthesis and increased production of heat by mitochondria. In recent years, the role of UCPs in other physiological processes has been deciphered. In this review, we first highlighted the different types of UCPs and their precise location across the body. Second, we summarized the role of UCPs in different diseases, mainly metabolic disorders such as obesity and diabetes, cardiovascular complications, cancer, wasting syndrome, neurodegenerative diseases, and kidney complications. Based on our findings, we conclude that UCPs play a major role in maintaining energy homeostasis, mitochondrial functions, ROS production, and apoptosis. Finally, our findings reveal that mitochondrial uncoupling by UCPs may treat many diseases, and extensive clinical studies are required to meet the unmet need of certain diseases.
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spelling doaj.art-1a7d8ea953ae4cb5b317f3bbaa8bc0e22023-11-17T07:23:42ZengMDPI AGCancers2072-66942023-02-01155140710.3390/cancers15051407Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer CachexiaMit Joshi0Bhoomika M. Patel1Institute of Pharmacy, Nirma University, Ahmedabad 382481, IndiaSchool of Medico-Legal Studies, National Forensic Sciences University, Sector 9, Gandhinagar 382007, IndiaUncoupling proteins (UCPs) are identified as carriers of proton ions between the mitochondrial inner membrane and the mitochondrial matrix. ATP is mainly generated through oxidative phosphorylation in mitochondria. The proton gradient is generated across the inner mitochondrial membrane and the mitochondrial matrix, which facilitates a smooth transfer of electrons across ETC complexes. Until now, it was thought that the role of UCPs was to break the electron transport chain and thereby inhibit the synthesis of ATP. UCPs allow protons to pass from the inner mitochondrial membrane to the mitochondrial matrix and decrease the proton gradient across the membrane, which results in decreased ATP synthesis and increased production of heat by mitochondria. In recent years, the role of UCPs in other physiological processes has been deciphered. In this review, we first highlighted the different types of UCPs and their precise location across the body. Second, we summarized the role of UCPs in different diseases, mainly metabolic disorders such as obesity and diabetes, cardiovascular complications, cancer, wasting syndrome, neurodegenerative diseases, and kidney complications. Based on our findings, we conclude that UCPs play a major role in maintaining energy homeostasis, mitochondrial functions, ROS production, and apoptosis. Finally, our findings reveal that mitochondrial uncoupling by UCPs may treat many diseases, and extensive clinical studies are required to meet the unmet need of certain diseases.https://www.mdpi.com/2072-6694/15/5/1407cancer cachexiauncoupling proteinmitochondriamuscle atrophymetabolismwasting syndrome
spellingShingle Mit Joshi
Bhoomika M. Patel
Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer Cachexia
Cancers
cancer cachexia
uncoupling protein
mitochondria
muscle atrophy
metabolism
wasting syndrome
title Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer Cachexia
title_full Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer Cachexia
title_fullStr Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer Cachexia
title_full_unstemmed Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer Cachexia
title_short Unveiling the Role of the Proton Gateway, Uncoupling Proteins (UCPs), in Cancer Cachexia
title_sort unveiling the role of the proton gateway uncoupling proteins ucps in cancer cachexia
topic cancer cachexia
uncoupling protein
mitochondria
muscle atrophy
metabolism
wasting syndrome
url https://www.mdpi.com/2072-6694/15/5/1407
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