母亲运动通过SERPINA3C预防后代小鼠的新陈代谢障碍
Yang Li1,2,3, Ruo-Ying Li1,2,3, Jie-Ying Zhu1,2,3
1School of Exercise and Health and Collaborative Innovation Center for Sports and Public Health, Shanghai University of Sport, Shanghai, China.
Nature metabolism
|January 31, 2025
概括
母亲运动通过增加SERPINA3C来改善后代的新陈代谢健康,从而增强KLF4表达. 这一过程减少了高脂肪饮食的后代的炎症和葡萄糖不耐受.
科学领域:
- 代谢健康 代谢健康
- 生殖生物学 生殖生物学
- 分子内分泌学分子内分泌学
背景情况:
- 母亲的运动有益于后代的代谢健康,但底层的分子机制是未知的.
- 后代的高脂肪饮食 (HFD) 会导致脂肪炎症和葡萄糖不耐受.
- 阿迪波金在新陈代谢调节中起着至关重要的作用.
研究的目的:
- 阐明母体运动改善后代代谢健康的分子机制.
- 研究蛋白酶抑制剂A3C (SERPINA3C) 在调解这些益处中的作用.
- 了解SERPINA3C如何影响后代的脂肪组织和葡萄糖代谢.
主要方法:
- 暴露于母体运动和HFD的小鼠模型.
- 对脂肪组织炎症和后代葡萄糖耐受性的分析.
- 涉及SERPINA3C操纵 (敲击和过度表达) 的分子研究在母体中.
- 研究SERPINA3C运输,基因调控 (Klf4脱甲基) 和胎儿前脂肪细胞中的信号通路 (PI3K/PIP3/O-GlcNAc/TET1).
主要成果:
- 母亲的运动减轻了HFD诱导的脂肪炎症和后代的葡萄糖不耐受.
- 在母体脂肪组织和胎儿循环中,SERPINA3C被上调;其操纵模仿或阻断了运动效益.
- 母亲的SERPINA3C通过基因促进剂脱甲基化促进了胎儿前脂肪细胞Klf4的表达,抑制了炎症.
- SERPINA3C-cathepsin G-integrin β1轴激活了PI3K信号,导致核PIP3生成,TET1 O-GlcNAcylation,并增强了Klf4脱甲基化.
结论:
- 母亲运动通过SERPINA3C介导的Klf4.4表观遗传调节,为后代带来代谢益处.
- 这项研究揭示了一种涉及SERPINA3C的新途径,胎儿表观遗传修饰,以及改善后代代谢健康.
- 这些发现提供了对代际代谢编程和潜在治疗点的机制性见解.
相关概念视频
02:30Genomic Imprinting and Inheritance
33.2K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
33.2K
01:20Pathophysiology of Diabetes
852
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
852
01:20Inborn Errors of Metabolism
124
Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
124