在雄性发育性脱发中原始细胞动力学:从空间解析的转录组学的洞察力
Sasin Charoensuksira1, Piyaporn Surinlert2,3, Aungkana Krajarng2
1Division of Dermatology, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani 12120, Thailand.
International journal of molecular sciences
|June 26, 2025
概括
雄激素性脱发症 (AGA) 涉及毛囊前代细胞的损失. 空间转录学揭示了细胞外矩阵和表皮-介质细胞转变基因的上调,表明纤维化转移有助于脱发.
科学领域:
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 雄激素性脱发症 (AGA) 的特点是逐渐的毛囊缩小和变薄.
- 毛囊前代细胞的枯竭是AGA的一个关键因素,但潜在的机制尚未完全理解.
研究的目的:
- 用空间转录学研究AGA患者毛囊前代细胞区域的转录变化.
- 将这些变化与健康对照进行比较,以确定驱动AGA的分子变化.
主要方法:
- 利用GeoMX数字空间分析 (DSP) 来分析特定毛囊区域的转录变化.
- 与受影响组织中的蛋白质表达水平相关联的基因表达数据.
主要成果:
- 在AGA原生细胞中发现了细胞外矩阵 (ECM) 组织和上皮-介质细胞转换 (EMT) 基因 (例如,FN1,TWIST1,TGFB2) 的显著上调.
- 确认了这些基因的蛋白质水平增加,这表明纤维基因转移和潜在的EMT.
- 观察到,围流体内免疫细胞的透会影响这些分子变化,这表明微炎症的作用.
结论:
- 空间转录组学有效地识别了AGA中的分子机制,同时保持了组织背景.
- 毛囊微环境中的EMT和纤维基转移有助于AGA中的原生细胞损失.
- 免疫媒介的微炎症可能会加剧AGA中的原始细胞枯竭和纤维化,突出潜在的治疗点.
相关概念视频
01:06Multipotency and Niche of Bulge Stem Cell
3.8K
A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...
3.8K
01:20Folliculogenesis
1.2K
Folliculogenesis is the development of ovarian follicles, the specialized structures within the ovarian cortex where oogenesis, or egg development, occurs. This process is essential for female reproductive health and begins during fetal development when primordial follicles are formed. Each primordial follicle comprises a primary oocyte in the center, surrounded by a single layer of squamous pre-granulosa cells. These follicles remain dormant in late prophase I of meiosis until triggered by...
1.2K