使用人类iPSC衍生的3D皮肤等效模型进行皮肤刺激测试.
Hyewon Shin1, Se-Eun Kim1, C-Yoon Kim1
1College of Veterinary Medicine, Konkuk University, Gwangjin, Seoul, Republic of Korea.
PloS one
|August 18, 2025
概括
研究人员使用干细胞开发了一种人体皮肤模型,为化品和再生应用提供了对动物试验的有希望的替代方案. 这种3D皮肤等效模型精确地模仿了人类皮肤的结构和功能.
科学领域:
- 生物技术是生物技术.
- 组织工程是组织工程.
- 皮肤病学 皮肤病学
背景情况:
- 3D皮肤等效模型 (SKE) 对于化品成分评估和皮肤再生研究至关重要.
- 初级皮肤细胞的局限性包括供体变异性和基因型特定研究中的挑战.
- 人类诱导的多能干细胞 (hiPSCs) 为创建标准化皮肤模型提供了一个潜在的解决方案.
研究的目的:
- 开发一种分离高纯度皮肤细胞 (纤维细胞和角质细胞) 和高纯度皮肤细胞 (hiPSC) 的协议.
- 构建一个功能性的3DhiPSC衍生的SKE (hiPSC-SKE).
- 为了验证hiPSC-SKE与原生人类皮肤的结构和功能相似性.
主要方法:
- 分化了hiPSCs成高纯度人体纤维细胞 (hFIBRO) 和角质细胞 (hKERA).
- 通过在原-hFIBROs皮肤上叠加hKERAs并诱导角质化,构建了hiPSC-SKE.
- 进行了组织学分析 (H&E染色) 并评估了对Triton X-100的功能反应.
主要成果:
- 成功地将hiPSCs分化为hFIBROs和hKERAs.
- 该hiPSC-SKE表现出类似于原生人类皮肤的分层架构,具有适当的标记表达.
- 该模型在暴露于Triton X-100时显示出显著的表皮损伤和细胞活力降低,证实了功能反应.
结论:
- 开发的hiPSC-SKE是皮肤研究的可行和可复制模型.
- 该模型为化品和皮肤病学应用提供了对动物试验的有希望的替代方案.
- hiPSC-SKE促进了基因型特异性研究,克服了基于初级细胞的模型的局限性.
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