Transcriptomic insights into the lipotoxicity of high-fat high-fructose diet in rat and mouse

Copyright © 2024 Elsevier Inc. All rights reserved..

Along with the increasing prevalence of obesity worldwide, the deleterious effects of high-calorie diet are gradually recognized through more and more epidemiological studies. However, the concealed and chronic causality whitewashes its unhealthy character. Given an ingenious mechanism orchestrates the metabolic adaptation to high-fat high-fructose (HFF) diet and connive its lipotoxicity, in this study, an experimental rat/mouse model of obesity was induced and a comparative transcriptomic analysis was performed to probe the mystery. Our results demonstrated that HFF diet consumption altered the transcriptomic pattern as well as different high-calorie diet fed rat/mouse manifested distinct hepatic transcriptome. Validation with RT-qPCR and Western blotting confirmed that SREBP1-FASN involved in de novo lipogenesis partly mediated metabolic self-adaption. Moreover, hepatic ACSL1-CPT1A-CPT2 pathway involved in fatty acids β-oxidation, played a key role in the metabolic adaption to HFF. Collectively, our findings enrich the knowledge of the chronic adaptation mechanisms and also shed light on future investigations. Meanwhile, our results also suggest that efforts to restore the fatty acids metabolic fate could be a promising avenue to fight against obesity and associated steatosis and insulin resistance challenged by HFF diet.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:128

Enthalten in:

The Journal of nutritional biochemistry - 128(2024) vom: 03. Apr., Seite 109626

Sprache:

Englisch

Beteiligte Personen:

Zhu, An-Qi [VerfasserIn]
Luo, Ning [VerfasserIn]
Zhou, Xiao-Ting [VerfasserIn]
Yuan, Min [VerfasserIn]
Zhang, Chu-Mei [VerfasserIn]
Pan, Tian-Ling [VerfasserIn]
Li, Kun-Ping [VerfasserIn]

Links:

Volltext

Themen:

30237-26-4
ACSL1-CPT1A-CPT2 pathway
Comparative transcriptomics analysis
De novo lipogenesis
EC 2.3.1.85
FASN protein, rat
Fasn protein, mouse
Fatty Acid Synthase, Type I
Fatty Acids
Fructose
High-fat high-fructose diet
Journal Article
Research Support, Non-U.S. Gov't
Srebf1 protein, rat
Sterol Regulatory Element Binding Protein 1

Anmerkungen:

Date Completed 27.04.2024

Date Revised 27.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jnutbio.2024.109626

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370171217