Silver nanoparticle-induced cell damage via impaired mtROS-JNK/MnSOD signaling pathway.

Toxicol Mech Methods

Department of Biochemistry, College of Medicine, and Jeju Research Center for Natural Medicine, Jeju National University, Jeju, Republic of Korea.

Published: September 2024

This study investigated the mechanism of silver nanoparticle (AgNP) cytotoxicity from a mitochondrial perspective. The effect of AgNP on manganese superoxide dismutase (MnSOD), a mitochondrial antioxidant enzyme, against oxidative stress has not been studied in detail. We demonstrated that AgNP decreased MnSOD mRNA level, protein expression, and activity in human Chang liver cells in a time-dependent manner. AgNP induced the production of mitochondrial reactive oxygen species (mtROS), particularly superoxide anion. AgNP was found to increase mitochondrial calcium level and disrupt mitochondrial function, leading to reduced ATP level, succinate dehydrogenase activity, and mitochondrial permeability. AgNP induced cytochrome c release from the mitochondria into the cytoplasm, attenuated the expression of the anti-apoptotic proteins phospho Bcl-2 and Mcl-1, and induced the expression of the pro-apoptotic proteins Bim and Bax. In addition, c-Jun N-terminal kinase (JNK) phosphorylation was significantly increased by AgNP. Treatment with elamipretide (a mitochondria-targeted antioxidant) and SP600125 (a JNK inhibitor) showed the involvement of MnSOD and JNK in these processes. These results indicated that AgNP damaged human Chang liver cells by destroying mitochondrial function through the accumulation of mtROS.

Download full-text PDF

Source
http://dx.doi.org/10.1080/15376516.2024.2350595DOI Listing

Publication Analysis

Top Keywords

agnp
8
human chang
8
chang liver
8
liver cells
8
agnp induced
8
mitochondrial function
8
mitochondrial
7
silver nanoparticle-induced
4
nanoparticle-induced cell
4
cell damage
4

Similar Publications

Introduction: Most psychiatric inpatients receive psychopharmacological treatment indicated for their mental diseases. The aim of this systematic review is to give clinical pharmacists and physicians a comprehensive summary of common drug-related problems (DRPs) in adult psychiatric inpatients and of potential interventions to solve them in clinical practice.

Methods: Six databases and registers were searched for English, German and French articles published between 1999 and 2023 with content regarding the prevalence and/or type or interventions to solve DRPs in adult psychiatric inpatients.

View Article and Find Full Text PDF

Electrochemiluminescence immunosensor using a lanthanum-based metal-organic framework as signal probe and CuMoS as a co-reaction promoter for the sensitive detection of anti-Müllerian hormone.

Talanta

December 2024

State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, China. Electronic address:

In this study, we used meso-tetra (4-carboxyphenyl) porphyrin (TCPP) as an organic ligand to modify a lanthanide-based metal-organic framework as an electrochemiluminescence (ECL) platform to sensitively detect anti-Müllerian hormone (AMH). La-MOF amplified the ECL signal by suppressing the aggregation-caused quenching created by TCPP self-aggregation. Utilizing the reversible cycling of the mixed-valence transition metal ion (Cu/Cu and Mo/Mo) and the electrical conductivity of CuMoS and silver nanoparticle (AgNP), CuMoS-AgNP as a dual co-reaction promoter constantly generated sulfate radical anions (SO) and thus amplified the ECL signal.

View Article and Find Full Text PDF

Background: The use of silver nanoparticles (AgNPs) in biomedicine has emerged in a big way owing to its antibacterial and anti-inflammatory properties. We hypothesize that combining the AgNPs with antibiotics for coating sutures will enhance the antibacterial property of sutures with the added advantage of the immunomodulatory effect of AgNPs on tissue healing.

Materials And Methods: Polyglactin sutures were coated with AgNPs using the dip-coating method.

View Article and Find Full Text PDF

The widespread use of silver nanoparticles in many industries is increasing every year. Along with this use, there is growing concern about the potential unintentional exposure of human and animal organisms to these nanomaterials. It has been shown that AgNPs have the ability to penetrate organisms and can have harmful effects on cells and organs in the body.

View Article and Find Full Text PDF

Polymethyl methacrylate (PMMA), widely used in orthodontics and dentures, exhibits suboptimal mechanical properties, including flexural strength (FS), impact strength (IS), and tensile strength (TS), which are critical for ensuring durability, resistance to fracture, and overall functionality of dental appliances. Silver nanoparticles (AgNPs) are a promising filler due to their antimicrobial properties. This pre-registered (osf.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!