USP18 enhances dengue virus replication by regulating mitochondrial DNA release DOI Creative Commons
Jenn‐Haung Lai,

De‐Wei Wu,

Chien‐Hsiang Wu

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Nov. 17, 2023

Dengue virus (DENV) infection remains a challenging health threat worldwide. Ubiquitin-specific protease 18 (USP18), which preserves the anti-interferon (IFN) effect, is an ideal target through DENV mediates its own immune evasion. However, much of function and mechanism USP18 in regulating replication incompletely understood. In addition, whether regulates merely by causing IFN hyporesponsiveness not clear. present study, using several different approaches to block signaling, including neutralizing antibodies (Abs), anti-IFN receptor Abs, Janus kinase inhibitors alpha beta subunit 1 (IFNAR1)knockout cells, we showed that may regulate IFN-associated IFN-unassociated manners. Localized mitochondria, regulated release mitochondrial DNA (mtDNA) cytosol affect viral replication, mechanisms such as reactive oxygen species (mtROS) production, changes membrane potential, mobilization calcium into 8-oxoguanine glycosylase (OGG1) expression, oxidation fragmentation mtDNA, opening permeability transition pore (mPTP) were involved USP18-regulated mtDNA cytosol. We therefore identify machineries are association with effects.

Language: Английский

Mitochondrial dysfunction and NLRP3 inflammasome: key players in kidney stone formation DOI

Bo-yan Su,

YaLin Ren,

Weimin Yao

et al.

BJU International, Journal Year: 2024, Volume and Issue: 134(5), P. 696 - 713

Published: July 5, 2024

The mitochondrion serves as a critical intracellular organelle, engaging in essential roles the regulation of energy production, oxidative stress management, calcium homeostasis, and apoptosis. One such disease that has been particularly associated with these functions is kidney stone (KSD), specifically oxalate (CaOx). It underpinned by tissue inflammation. Recent studies have shed light on vital involvement mitochondrial dysfunction, nucleotide-binding domain leucine-rich repeat containing protein 3 (NLRP3) inflammasome, endoplasmic reticulum subsequent cell death CaOx crystal retention aggregation. These processes are pivotal pathogenesis formation. This review focuses mitochondria renal provides an overview intricate interconnectedness between dysfunction NLRP3 inflammasome activation context KSD. to recognise utmost significance gaining comprehensive understanding mechanisms safeguard function regulate inflammasome. Such knowledge carries significant scientific implications opens up promising avenues for development innovative strategies prevent formation stones.

Language: Английский

Citations

3

Role of Mitochondria in the Chronification of Inflammation: Focus on Dysfunctional Mitophagy and Mitochondrial DNA Mutations DOI Creative Commons
Alexander N. Orekhov, Volha I. Summerhill, Victoria A. Khotina

et al.

Gene Expression, Journal Year: 2023, Volume and Issue: 22(4), P. 329 - 344

Published: Nov. 30, 2023

Inflammation is a natural reaction of the innate immune system that evolved primarily to protect human body from invading pathogens and heal injuries. There are two different types inflammation, acute chronic differing in duration, underlying causes, characteristics. The acute-to-chronic transition can be determined by several pathomechanisms, including dysregulation response failure eliminate cause. Moreover, epigenetic changes refer modifications gene expression heritable but do not involve DNA sequence also contribute prolonged inflammation. Emerging evidence suggests dysfunctional mitochondria promote development In this respect, mechanisms triggering defective mitophagy, selective form autophagy exterminates maintain cellular homeostasis, attracted special attention. hypothesis on pivotal role mutations mitochondrial causing mitophagy stimulated area research applies editing genome. mitoCAS9 vector single guide RNAs G15059A mutation were used macrophage-like cells. normal activity initially was restored intact cells, confirming causal disruption process. unraveling inflammation will help develop targeted therapeutic approaches aimed at restoring health alleviating for treatment wide range inflammatory diseases.

Language: Английский

Citations

7

RVFV virulence factor NSs triggers the mitochondrial MCL-1-BAK axis to activate pathogenic NLRP3 pyroptosis DOI Creative Commons

Zhenqiong Guan,

Huiling Li,

Chongtao Zhang

et al.

PLoS Pathogens, Journal Year: 2024, Volume and Issue: 20(8), P. e1012387 - e1012387

Published: Aug. 30, 2024

Infection of Rift Valley fever virus (RVFV), a highly pathogenic mosquito-borne zoonotic virus, triggers severe inflammatory pathogenesis but the underlying mechanism inflammation activation is currently unclear. Here, we report that non-structural protein NSs RVFV mitochondrial damage to activate NLRP3 inflammasome leading viral in vivo. It found host transcription inhibition effect causes rapid down-regulation myeloid cell leukemia-1(MCL-1), pro-survival member Bcl-2 (B-cell lymphoma 2) family. MCL-1 led BAK mitochondria, which triggered mtROS production and release oxidized DNA (ox-mtDNA) into cytosol. Cytosolic ox-mtDNA binds activates triggering NLRP3-GSDMD pyroptosis infected cells. A mutant (RVFV-NSsRM) compromised inducing did not trigger nor pyroptosis. infection Nlrp3-/- mouse model demonstrated RVFV-triggered contributed fatal with RVFV-NSsRM similarly showed alleviated reduced fatality rate. Taken together, these results revealed by virulence factor MCL-1-BAK axis through NLRP3-dependent pathogenesis.

Language: Английский

Citations

2

Nucleic acid liquid biopsies in cardiovascular disease: Cell-free DNA liquid biopsies in cardiovascular disease DOI Creative Commons
Tyler Artner, Smriti Sharma, Iréne Lang

et al.

Atherosclerosis, Journal Year: 2024, Volume and Issue: unknown, P. 118583 - 118583

Published: Sept. 1, 2024

Language: Английский

Citations

2

USP18 enhances dengue virus replication by regulating mitochondrial DNA release DOI Creative Commons
Jenn‐Haung Lai,

De‐Wei Wu,

Chien‐Hsiang Wu

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Nov. 17, 2023

Dengue virus (DENV) infection remains a challenging health threat worldwide. Ubiquitin-specific protease 18 (USP18), which preserves the anti-interferon (IFN) effect, is an ideal target through DENV mediates its own immune evasion. However, much of function and mechanism USP18 in regulating replication incompletely understood. In addition, whether regulates merely by causing IFN hyporesponsiveness not clear. present study, using several different approaches to block signaling, including neutralizing antibodies (Abs), anti-IFN receptor Abs, Janus kinase inhibitors alpha beta subunit 1 (IFNAR1)knockout cells, we showed that may regulate IFN-associated IFN-unassociated manners. Localized mitochondria, regulated release mitochondrial DNA (mtDNA) cytosol affect viral replication, mechanisms such as reactive oxygen species (mtROS) production, changes membrane potential, mobilization calcium into 8-oxoguanine glycosylase (OGG1) expression, oxidation fragmentation mtDNA, opening permeability transition pore (mPTP) were involved USP18-regulated mtDNA cytosol. We therefore identify machineries are association with effects.

Language: Английский

Citations

5