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KDM4B epigenetically protects against obesity and metabolic dysfunction

ABSTRACT: KDM4B epigenetically protects against obesity and metabolic dysfunction

PROVIDER: PRJNA397224 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5889221.fastq.gz	Fastqsanger.gz
	SRR5889222.fastq.gz	Fastqsanger.gz
	SRR5889223.fastq.gz	Fastqsanger.gz
	SRR5889224.fastq.gz	Fastqsanger.gz

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KDM4B epigenetically protects against obesity and metabolic dysfunction [gene expression]

Project description:KDM4B (lysine demethylase 4B) in adipose tissues plays a critical role in energy balance, oxidation, lipolysis and thermogenesis. Loss of KDM4B in mice resulted in obesity associated with reduced energy expenditure and impaired adaptive thermogenesis. Mechanistically, we determined that KDM4B directly controls the expression of multiple metabolic genes.

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KDM4B epigenetically protects against obesity and metabolic dysfunction [ChIP-seq]

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KDM4B epigenetically protects against obesity and metabolic dysfunction

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Project description:KDM4B epigenetically protects against obesity and metabolic dysfunction [gene expression]

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KDM4B protects against obesity and metabolic dysfunction.

Project description:Although significant progress has been made in understanding epigenetic regulation of in vitro adipogenesis, the physiological functions of epigenetic regulators in metabolism and their roles in obesity remain largely elusive. Here, we report that KDM4B (lysine demethylase 4B) in adipose tissues plays a critical role in energy balance, oxidation, lipolysis, and thermogenesis. Loss of KDM4B in mice resulted in obesity associated with reduced energy expenditure and impaired adaptive thermogenesis. Obesity in KDM4B-deficient mice was accompanied by hyperlipidemia, insulin resistance, and pathological changes in the liver and pancreas. Adipocyte-specific deletion of Kdm4b revealed that the adipose tissues were the main sites for KDM4B antiobesity effects. KDM4B directly controlled the expression of multiple metabolic genes, including Ppargc1a and Ppara Collectively, our studies identify KDM4B as an essential epigenetic factor for the regulation of metabolic health and maintaining normal body weight in mice. KDM4B may provide a therapeutic target for treatment of obesity.

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Estrogen Receptor α Protects Against Obesity-Induced Metabolic Dysfunction by Regulating VAT Tregs

Project description:Estrogens are important for metabolic health. Individuals with low levels of circulating estrogens, including men and postmenopausal women, exhibit an elevated risk for developing obesity-associated metabolic syndromes. Chronic low-grade inflammation in the visceral adipose tissue (VAT) is a major contributor to metabolic dysfunction during obesity. Regulatory T cells (Tregs) in the VAT limit tissue inflammation and protect against obesity-associated metabolic disease. In this study, we identify opposing roles of estrogen receptor α (ERα) in regulating VAT Tregs in female mice under steady-state and obese conditions. At steady state, ERα restrained the age-dependent clonal expansion of specific VAT Treg subsets expressing the IL-33 receptor ST2. However, during obesity, ERα-deficiency predisposed females to the loss of ST2+ VAT Tregs, exacerbating VAT inflammation and insulin resistance. These findings indicate that ERα signaling protects against obesity-induced metabolic diseases by preserving metabolically protective ST2+ VAT Treg subsets, and the loss of this protection may contribute to the heightened metabolic risk in estrogen-deficient individuals.

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