Unfolded proteins in the mitochondria activate HRI and shut-down of mitochondrial protein translation DOI Creative Commons

Yongshu Wu,

Yang Yang,

Xiaodong Qin

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: March 21, 2024

Abstract Mitochondrial unfolded protein response (UPR mt ) is triggered through eIF2α phosphorylation in mammal. However, the mechanisms of UPR activation and influence on mitochondrial translation remain unclear. In this study, we confirmed that was a rapid specific stress with pharmacological induction, along expression phosphorylation, ATF4, CHOP. Meanwhile, up-regulation some chaperones, cytochrome P450 enzymes, DDIT4 determined by RNA-Seq ribosome profiling, essential for expressing ATF4 CHOP, then traffics into nucleus initiates CHOP expression. addition, generation ROS morphology unchanged under GTPP induced . Furthermore, unraveled mechanism HRI kinase mediates proteins CRISPR-Cas9 technology recruitment interaction other proteins. number imports were inhibited accumulation protein. These findings provide molecular impact cellular translation, which will offer novel insights functional research , including its implications human diseases pathobiology.

Language: Английский

ATAD1 prevents clogging of TOM and damage caused by un-imported mitochondrial proteins DOI Creative Commons
J. Kim, Madeleine Goldstein,

Lauren Zecchel

et al.

Cell Reports, Journal Year: 2024, Volume and Issue: 43(8), P. 114473 - 114473

Published: July 17, 2024

Language: Английский

Citations

14

Mitochondria and the Repurposing of Diabetes Drugs for Off-Label Health Benefits DOI Open Access
Joyce Yip, Grace Shu Hui Chiang,

I Lee

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(1), P. 364 - 364

Published: Jan. 3, 2025

This review describes our current understanding of the role mitochondria in repurposing anti-diabetes drugs metformin, gliclazide, GLP-1 receptor agonists, and SGLT2 inhibitors for additional clinical benefits regarding unhealthy aging, long COVID, mental neurogenerative disorders, obesity. Metformin, most prominent these diabetes drugs, has been called “Drug Miracles Wonders,” as trials have found it to be beneficial human patients suffering from maladies. To promote viral replication all infected cells, SARS-CoV-2 stimulates liver cells produce glucose export into blood stream, which can cause COVID patients, reduces levels blood, was shown cut incidence rate half recovering SARS-CoV-2. Metformin leads phosphorylation AMP-activated protein kinase AMPK, accelerates import via transporter GLUT4 switches starvation mode, counteracting virus. Diabetes also stimulate unfolded response thus mitophagy, is healthy aging health. were mimic exercise help reduce body weight.

Language: Английский

Citations

1

Mitochondrial dysfunction as a therapeutic strategy for neurodegenerative diseases: Current Insights and Future Directions DOI
Yingying Gu,

Xinru Zhao,

Nan Zhang

et al.

Ageing Research Reviews, Journal Year: 2024, Volume and Issue: 102, P. 102577 - 102577

Published: Nov. 10, 2024

Language: Английский

Citations

4

Functional Nucleic Acid Nanostructures for Mitochondrial Targeting: The Basis of Customized Treatment Strategies DOI Creative Commons
Wanchong He,

Siyu Dong,

Qinghua Zeng

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(5), P. 1025 - 1025

Published: Feb. 24, 2025

Mitochondria, as vital organelles, play a central role in subcellular research and biomedical innovation. Although functional nucleic acid (FNA) nanostructures have witnessed remarkable progress across numerous biological applications, strategies specifically tailored to target mitochondria for molecular imaging therapeutic interventions remain scarce. This review delves into the latest advancements leveraging FNA mitochondria-specific cancer therapy. Initially, we explore creation of FNA-based biosensors localized mitochondria, enabling real-time detection visualization critical molecules essential mitochondrial function. Subsequently, examine developments aimed at mitochondrial-targeted treatments, including modular nanodevices precise delivery agents programmable disrupting processes. Emphasis is placed on elucidating chemical principles underlying design mitochondrial-specific nanotechnology diverse uses. Lastly, address unresolved challenges outline prospective directions, with goal advancing field encouraging sophisticated tools both academic inquiry clinical applications centered mitochondria.

Language: Английский

Citations

0

Mitochondrial quality control and stress signaling pathways in the pathophysiology of cardio-renal diseases DOI Creative Commons
Isabel Amador‐Martínez, Ana Karina Aranda‐Rivera,

Mauricio Raziel Martínez-Castañeda

et al.

Mitochondrion, Journal Year: 2025, Volume and Issue: unknown, P. 102040 - 102040

Published: April 1, 2025

Mitochondria are essential organelles for cellular function and have become a broad field of study. In cardio-renal diseases, it has been established that mitochondrial dysfunction is primary mechanism leading to these pathologies. Under stress, mitochondria can develop stress response mechanisms maintain quality control (MQC) functions. contrast, the perturbation associated with pathogenesis several diseases. Thus, targeting specific pathways within MQC could offer therapeutic avenue protecting integrity. However, related signaling in axis poorly explored. The limitations include lack reproducibility experimental models disease, incomplete knowledge molecules generate bidirectional damage, temporality study models. Therefore, we believe integration all those limitations, along recent advances (i.e., mitophagy), (e.g., integrated response, unfolded protein import), pharmacology, targeted approaches reveal what deregulation like provide ideas generating strategies seek avoid progression

Language: Английский

Citations

0

Mitochondria – the CEO of the cell DOI
Laurie Lee-Glover, Martin Picard, Timothy E. Shutt

et al.

Journal of Cell Science, Journal Year: 2025, Volume and Issue: 138(9)

Published: May 1, 2025

As we have learned more about mitochondria over the past decades, including their essential cellular roles and how altered mitochondrial biology results in disease, it has become apparent that they are not just powerplants pumping out ATP at whim of cell. Rather, dynamic information energy processors play crucial directing dozens processes behaviors. They provide instructions to enact programs regulate various operations, such as complex metabolic networks, signaling innate immunity, even control cell fate, dictating when cells should divide, differentiate or die. To help current future generations biologists incorporate dynamic, multifaceted nature assimilate modern discoveries into scientific framework, need a 21st century 'rebranding'. In this Opinion article, argue be considered 'Chief Executive Organelle' - CEO

Language: Английский

Citations

0

SIRT2 inhibition enhances mitochondrial apoptosis in Brucella-infected bovine placental trophoblast cells DOI Creative Commons

Mengyu Zhang,

Lin Qi,

Junmei Li

et al.

Veterinary Research, Journal Year: 2025, Volume and Issue: 56(1)

Published: May 2, 2025

Abstract Brucella is a successful pathogen that employs plethora of immune evasion mechanisms. This contributes to pathogenesis and persistence limits the efficacy available treatments. An increasing understanding host‒pathogen interactions suggests integrating host-directed strategies with existing anti- treatments could lead more effective bacterial clearance reduction in drug-resistant strains. SIRT2 nicotinamide adenine dinucleotide (NAD + )-dependent deacetylase found mammals. It can deacetylate various transcription factors regulatory proteins, playing crucial roles infection-induced apoptosis. In this study, we investigated role -induced cell apoptosis using bovine placental trophoblast cells. Our results indicate B. abortus A19 infection upregulates protein expression significantly induces mitochondrial these Furthermore, inhibition exacerbates A19-induced markedly inhibits intracellular survival. These prove mechanism action.

Language: Английский

Citations

0

CHIP and aging: a key regulator of proteostasis and cellular senescence DOI
Surya Nath Pandey, Neetu Agrawal, Ehssan Moglad

et al.

Biogerontology, Journal Year: 2025, Volume and Issue: 26(3)

Published: May 5, 2025

Language: Английский

Citations

0

Solute Transport through Mitochondrial Porins In Vitro and In Vivo DOI Creative Commons
Roland Benz

Biomolecules, Journal Year: 2024, Volume and Issue: 14(3), P. 303 - 303

Published: March 4, 2024

Mitochondria are most likely descendants of strictly aerobic prokaryotes from the class Alphaproteobacteria. The mitochondrial matrix is surrounded by two membranes according to its relationship with Gram-negative bacteria. Similar bacterial outer membrane, membrane acts as a molecular sieve because it also contains diffusion pores. However, more actively involved in metabolism plays functional role, whereas has only passive sieving properties. Mitochondrial porins, known eukaryotic porins or voltage-dependent anion-selective channels (VDACs) control permeability properties membrane. They contrast they voltage-dependent. switch at relatively small transmembrane potentials 20 30 mV closed states that exhibit different than open state. Whereas state preferentially permeable anionic metabolites metabolism, prefer cationic solutes, particular, calcium ions. encoded nucleus, synthesized cytoplasmatic ribosomes, and post-translationally imported through special transport systems into mitochondria. Nineteen beta strands form beta-barrel cylinders related porins. pores contain addition an α-helical structure N-terminal end protein serves gate for voltage-dependence. Similarly, bind peripheral proteins function compartment formation. This means localized strategic position metabolism. features role apoptosis cancer will be discussed this article.

Language: Английский

Citations

2

New insights into the relationship of mitochondrial metabolism and atherosclerosis DOI
Zizheng Wang, Wei Sun, Kai Zhang

et al.

Cellular Signalling, Journal Year: 2024, Volume and Issue: 127, P. 111580 - 111580

Published: Dec. 27, 2024

Language: Английский

Citations

2