Chronic Aroclor 1260 exposure alters the mouse liver proteome, selenoproteins, and metals in steatotic liver disease

Copyright © 2024 Elsevier B.V. All rights reserved..

The prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD) continues to increase due in part to the obesity epidemic and to environmental exposures to metabolism disrupting chemicals. A single gavage exposure of male mice to Aroclor 1260 (Ar1260), an environmentally relevant mixture of non-dioxin-like polychlorinated biphenyls (PCBs), resulted in steatohepatitis and altered RNA modifications in selenocysteine tRNA 34 weeks post-exposure. Unbiased approaches identified the liver proteome, selenoproteins, and levels of 25 metals. Ar1260 altered the abundance of 128 proteins. Enrichment analysis of the liver Ar1260 proteome included glutathione metabolism and translation of selenoproteins. Hepatic glutathione peroxidase 4 (GPX4) and Selenoprotein O (SELENOO) were increased and Selenoprotein F (SELENOF), Selenoprotein S (SELENOS), Selenium binding protein 2 (SELENBP2) were decreased with Ar1260 exposure. Increased copper, selenium (Se), and zinc and reduced iron levels were detected. These data demonstrate that Ar1260 exposure alters the (seleno)proteome, Se, and metals in MASLD-associated pathways.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:107

Enthalten in:

Environmental toxicology and pharmacology - 107(2024) vom: 19. Apr., Seite 104430

Sprache:

Englisch

Beteiligte Personen:

Piell, Kellianne M [VerfasserIn]
Petri, Belinda J [VerfasserIn]
Xu, Jason [VerfasserIn]
Cai, Lu [VerfasserIn]
Rai, Shesh N [VerfasserIn]
Li, Ming [VerfasserIn]
Wilkey, Daniel W [VerfasserIn]
Merchant, Michael L [VerfasserIn]
Cave, Matthew C [VerfasserIn]
Klinge, Carolyn M [VerfasserIn]

Links:

Volltext

Themen:

11096-82-5
Aroclor 1260
Aroclors
Diet
EC 1.11.1.9
Glutathione Peroxidase
H6241UJ22B
Journal Article
Liver
PCBs
Proteome
RNA modifications
Selenium
Selenoproteins
TRNA

Anmerkungen:

Date Completed 16.04.2024

Date Revised 26.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.etap.2024.104430

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370422864