The Hypothalamic Epigenetic Landscape in Dietary Obesity

© 2023 The Authors. Advanced Science published by Wiley-VCH GmbH..

The hypothalamus in the brain plays a pivotal role in controlling energy balance in vertebrates. Nutritional excess through high-fat diet (HFD) feeding can dysregulate hypothalamic signaling at multiple levels. Yet, it remains largely unknown in what magnitude HFD feeding may impact epigenetics in this brain region. Here, it is shown that HFD feeding can significantly alter hypothalamic epigenetic events, including posttranslational histone modifications, DNA methylation, and chromatin accessibility. The authors comprehensively analyze the chromatin immunoprecipitation-sequencing (ChIP-seq), methylated DNA immunoprecipitation-sequencing (MeDIP-seq), single nucleus assay for transposase-accessible chromatin using sequencing (snATAC-seq), and RNA-seq data of the hypothalamus of C57 BL/6 mice fed with a chow or HFD for 1 to 6 months. The chromatins are categorized into 6 states using the obtained ChIP-seq data for H3K4me3, H3K27ac, H3K9me3, H3K27me3, and H3K36me3. A 1-month HFD feeding dysregulates histone modifications and DNA methylation more pronouncedly than that of 3- or 6-month. Besides, HFD feeding differentially impacts chromatin accessibility in hypothalamic cells. Thus, the epigenetic landscape is dysregulated in the hypothalamus of dietary obesity mice.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Advanced science (Weinheim, Baden-Wurttemberg, Germany) - 11(2024), 9 vom: 01. März, Seite e2306379

Sprache:

Englisch

Beteiligte Personen:

Ma, Kai [VerfasserIn]
Yin, Kaili [VerfasserIn]
Li, Jiong [VerfasserIn]
Ma, Li [VerfasserIn]
Zhou, Qun [VerfasserIn]
Lu, Xiyuan [VerfasserIn]
Li, Bo [VerfasserIn]
Li, Juxue [VerfasserIn]
Wei, Gang [VerfasserIn]
Zhang, Guo [VerfasserIn]

Links:

Volltext

Themen:

Chromatin
Chromatin accessibility
DNA methylation
Dietary obesity
Histone modification
Hypothalamus
Journal Article

Anmerkungen:

Date Completed 07.03.2024

Date Revised 08.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/advs.202306379

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366064355