Nuclear-Mitochondrial Interactions

Mitochondria, the cell’s major energy producers, also act as signaling hubs, interacting with other organelles both directly and indirectly. Despite having its own circular genome, the majority of mitochondrial proteins are encoded by nuclear DNA. To respond to changes in cell physiology, the mitoch...

Full description

Bibliographic Details
Main Authors: Brittni R. Walker, Carlos T. Moraes
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Biomolecules
Subjects:
Online Access:https://www.mdpi.com/2218-273X/12/3/427
_version_ 1797472585185755136
author Brittni R. Walker
Carlos T. Moraes
author_facet Brittni R. Walker
Carlos T. Moraes
author_sort Brittni R. Walker
collection DOAJ
description Mitochondria, the cell’s major energy producers, also act as signaling hubs, interacting with other organelles both directly and indirectly. Despite having its own circular genome, the majority of mitochondrial proteins are encoded by nuclear DNA. To respond to changes in cell physiology, the mitochondria must send signals to the nucleus, which can, in turn, upregulate gene expression to alter metabolism or initiate a stress response. This is known as retrograde signaling. A variety of stimuli and pathways fall under the retrograde signaling umbrella. Mitochondrial dysfunction has already been shown to have severe implications for human health. Disruption of retrograde signaling, whether directly associated with mitochondrial dysfunction or cellular environmental changes, may also contribute to pathological deficits. In this review, we discuss known signaling pathways between the mitochondria and the nucleus, examine the possibility of direct contacts, and identify pathological consequences of an altered relationship.
first_indexed 2024-03-09T20:04:31Z
format Article
id doaj.art-1b5edaa8969641f982ef4622e7aa40e0
institution Directory Open Access Journal
issn 2218-273X
language English
last_indexed 2024-03-09T20:04:31Z
publishDate 2022-03-01
publisher MDPI AG
record_format Article
series Biomolecules
spelling doaj.art-1b5edaa8969641f982ef4622e7aa40e02023-11-24T00:35:48ZengMDPI AGBiomolecules2218-273X2022-03-0112342710.3390/biom12030427Nuclear-Mitochondrial InteractionsBrittni R. Walker0Carlos T. Moraes1Neuroscience Program, University of Miami Miller School of Medicine, 1420 NW 9th Avenue, Rm. 229, Miami, FL 33136, USADepartment of Neurology, University of Miami Miller School of Medicine, 1420 NW 9th Avenue, Rm. 229, Miami, FL 33136, USAMitochondria, the cell’s major energy producers, also act as signaling hubs, interacting with other organelles both directly and indirectly. Despite having its own circular genome, the majority of mitochondrial proteins are encoded by nuclear DNA. To respond to changes in cell physiology, the mitochondria must send signals to the nucleus, which can, in turn, upregulate gene expression to alter metabolism or initiate a stress response. This is known as retrograde signaling. A variety of stimuli and pathways fall under the retrograde signaling umbrella. Mitochondrial dysfunction has already been shown to have severe implications for human health. Disruption of retrograde signaling, whether directly associated with mitochondrial dysfunction or cellular environmental changes, may also contribute to pathological deficits. In this review, we discuss known signaling pathways between the mitochondria and the nucleus, examine the possibility of direct contacts, and identify pathological consequences of an altered relationship.https://www.mdpi.com/2218-273X/12/3/427mitochondrianucleusretrograde signalingMAMsintegrated stress response
spellingShingle Brittni R. Walker
Carlos T. Moraes
Nuclear-Mitochondrial Interactions
Biomolecules
mitochondria
nucleus
retrograde signaling
MAMs
integrated stress response
title Nuclear-Mitochondrial Interactions
title_full Nuclear-Mitochondrial Interactions
title_fullStr Nuclear-Mitochondrial Interactions
title_full_unstemmed Nuclear-Mitochondrial Interactions
title_short Nuclear-Mitochondrial Interactions
title_sort nuclear mitochondrial interactions
topic mitochondria
nucleus
retrograde signaling
MAMs
integrated stress response
url https://www.mdpi.com/2218-273X/12/3/427
work_keys_str_mv AT brittnirwalker nuclearmitochondrialinteractions
AT carlostmoraes nuclearmitochondrialinteractions