人体皮肤脱细胞化ECM水凝作为3D体外皮肤衰老模型的支架
Estibaliz Fernandez-Carro1,2, Ana Rosa Remacha1, Irene Orera3
1Tissue Microenvironment (TME) Lab, Aragón Institute of Engineering Research (I3A), University of Zaragoza, C/Mariano Esquillor s/n, 500018 Zaragoza, Spain.
International journal of molecular sciences
|April 13, 2024
概括
研究人员使用老年人脱细胞化皮肤细胞外基质 (dECM) 水凝开发了新的生物材料. 这些dECM水凝可以为药物测试和衰老研究创建更准确的三维 (3D) 皮肤模型.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 皮肤病学 皮肤病学
背景情况:
- 三维 (3D) 体外皮肤模型对于药物测试和组织特定研究至关重要.
- 目前商业化生物材料 (如原蛋白,纤维素,酸盐) 缺乏原生皮肤的分子复杂性.
- 先进的模型需要新的生物材料来更好地模仿组织复杂性.
研究的目的:
- 开发和评估老年人脱细胞化皮肤细胞外基质 (dECM) 水凝作为高级皮肤模型的支架.
- 评估dECM水凝对于创建更准确的体外皮肤衰老模型的适用性.
主要方法:
- 从人体皮肤中提取老化的人类dECM水凝.
- 描述dECM水凝结构,机械性能和分子组成.
- 在dECM水凝中嵌入纤维细胞,并将其行为与商业原水凝中的细胞进行比较.
主要成果:
- dECM水凝成功复制了纤维结构,并表现出与其他支架相似的机械性能.
- dECM水凝保留了原生皮肤的分子组成.
- 与原体水凝相比,dECM水凝中的纤维细胞表现出更自然的行为,避免了不受控制的增殖和收缩.
结论:
- 在先进的皮肤模型中,人类dECM水凝作为皮肤纤维细胞的有效支架.
- 这些dECM水凝适合在芯片上开发3D皮肤衰老模型,准确地代表细胞微环境.
- dECM水凝为现有的体外皮肤模型提供了改进的替代方案,提高了皮肤病理学研究的可靠性.
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