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DOI: 10.3791/65639-v
Alicia E. Tanneberger1, Layla Blair1, Duncan Davis-Hall1, Chelsea M. Magin1,2,3
1Department of Bioengineering,University of Colorado Denver | Anschutz Medical Campus, 2Department of Pediatrics,University of Colorado Anschutz Medical Campus, 3Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine,University of Colorado Anschutz Medical Campus
Please note that some of the translations on this page are AI generated. Click here for the English version.
本文介绍了如何 3D 生物打印光可调水凝胶来研究细胞外基质硬化和成纤维细胞活化。
我们设计了肺组织的 3D 模型,以帮助世界更轻松地呼吸。我们的使命是使用3D生物材料和3D打印等技术来构建平台,帮助我们了解导致慢性肺部疾病的原因以及如何更好地治疗这些疾病。我们研究中的一个实验挑战是将软材料3D打印成复杂形状的难度。
我们通过打印我们的生物墨水和组织减薄支持浴来精确沉积细胞,这有助于在打印过程中保持其形状。我们的生物材料在整个实验过程中提供对样品机械性能的控制。这种配方允许研究人员在与健康和患病肺组织的硬度相匹配的水凝胶中培养细胞。
用户可以决定何时使样品变硬并测量细胞反应。该协议中使用的光可调生物材料允许创建软化模型,该模型稍后可以变硬以探索细胞对微环境变硬的反应。使用静态生物材料而不是光可调生物材料的类似技术会导致模型在打印后无法加固。
我们实验室其他研究的结果表明,性别和年龄在肺部疾病进展中起着关键作用。未来的模型将研究这些变量,并包括更多的复杂性,如额外的细胞特异性层。将这些努力结合起来,将产生更真实的生物打印,并带来治疗纤维化疾病的新方法。
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