CD133定义了皮肤乳头中的毛发诱导细胞
Huangying Zhao1, Linli Zhou1, Lindsey G Siegfried1
1Division of Pharmaceutical Science, College of Pharmacy, University of Cincinnati, Cincinnati, OH, 45267, USA.
Scientific reports
|July 2, 2025
概括
CD133阳性皮肤乳头 (DP) 细胞对于毛囊 (HF) 的形成至关重要. 这些细胞,当培养为球体时,在工程皮肤中促进更强大的头发生长,为改善毛囊再生疗法提供了潜在的潜力.
科学领域:
- 再生医学是一种再生医学.
- 皮肤病学 皮肤病学
- 发展生物学 发展生物学
背景情况:
- 基于细胞的毛囊 (HF) 工程面临的挑战是由于培养专门的皮肤乳头 (DP) 纤维细胞的困难.
- 通过CD133细胞表面标记物识别的DP纤维细胞的一个独特亚群已经被发现,但其生物学意义尚不清楚.
研究的目的:
- 为了研究CD133阳性 (CD133+) 和CD133阴性 (CD133-) DP细胞之间的生物学差异.
- 评估CD133+DP细胞在毛囊形成和再生中的潜力.
主要方法:
- 通过使用一种新型的双光转基因小鼠模型,从小鼠的异构HF中分离CD133+和CD133-DP细胞.
- 基因表达 (versican) 和特征 (球体紧度,性酸酶染色) 在单层和3D球体培养条件下的DP群体中的比较.
- 在体内皮肤复制试验以评估CD133+和CD133-DP球体移植后的头发生长潜力.
主要成果:
- CD133+和CD133-DP细胞在单层培养中失去了versican表达,在3D球形培养中恢复了这种表达.
- 与CD133-DP球体相比,CD133+DP球体表现出增强的紧性,更强的性酸酶染色,以及更高的DP特征基因表达.
- 使用CD133+ DP球体的皮肤移植结果在愈合的伤口中比使用CD133- DP球体的皮肤移植结果显著增加了头发的生长.
结论:
- CD133+DP细胞是毛囊形成的关键驱动因素.
- 球形培养中的CD133+DP细胞的独特特性为改善组织工程皮肤替代品 (TESS) 中的人类DP细胞应用提供了有希望的途径.
- 向CD133+DP细胞可以增强头发再生和治疗性皮肤工程的策略.
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