单核RNA测序在减肥手术后的棕色/色脂肪组织中解决了微环境动态
Wei Wang1, Yangxingyun Wang2, Zhonghao Guo2
1Department of Endocrinology, First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia, 014010, China.
Journal of translational medicine
|December 22, 2025
概括
腹腔外科手术通过增加纤维芽细胞和减少脂肪细胞来重塑棕色和色脂肪组织. 这涉及IGF1信号传递和特定的脂肪细胞亚群 (AP6) 潜在地过渡到纤维芽细胞状态,为肥胖提供新的治疗点.
科学领域:
- 代谢研究的研究.
- 脂肪组织生物学 脂肪组织生物学
- 肥胖研究的研究.
背景情况:
- 肥胖是一种慢性疾病,与糖尿病,心血管问题和癌症有关.
- 减肥手术对减肥有效,但其机制尚不清楚.
- 了解脂肪组织重塑对于代谢健康至关重要.
研究的目的:
- 研究减肥手术后脂肪组织重塑的分子机制.
- 为了绘制手术后棕色和色脂肪组织的转录变化.
- 为了确定细胞相互作用和参与脂肪组织变化的信号通路.
主要方法:
- 单核RNA测序小鼠棕色和色脂肪组织.
- 使用CellChat平台进行细胞通信分析.
- 伪时间轨迹分析以推断细胞状态过渡.
主要成果:
- 减肥手术导致纤维芽细胞扩张和脂肪库中的脂肪细胞减少.
- 通过IGF1信号传递,增强脂肪细胞和纤维芽细胞之间的交叉.
- 鉴定出具有纤维化基因的特定脂肪细胞亚群 (AP6),显示向纤维芽细胞状态的过渡.
结论:
- 腹腔术后的手术会导致热性脂肪组织的微环境变化.
- 一条涉及11个调节器和IGF1信号传递的途径可能会驱动脂肪细胞到纤维母细胞的转差.
- 这些发现表明肥胖和相关并发症的潜在治疗点.
相关概念视频
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
01:22MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...