一个3D生物打印的球状带dECM丰富骨肉瘤模型,用于增强药物测试和治疗发现
Margarida F Domingues1,2, Maria Catarina Carreira1,2, Mafalda S Santos1,2
1Department of Bioengineering and Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal.
Advanced healthcare materials
|February 3, 2026
概括
这项研究引入了一种新的3D生物打印骨髓瘤模型,使用专门的生物墨水. 该模型更好地模仿瘤微环境,显示了改善临床前药物测试和治疗发现的潜力.
科学领域:
- 生物材料科学 生物材料科学
- 在瘤学瘤学.
- 组织工程是组织工程.
背景情况:
- 骨髓瘤 (OS) 由于治疗效率有限,因瘤异质性和化学抗药性而导致高死亡率.
- 需要先进的临床前模型,准确地回顾OS生物学,用于治疗开发.
- 与传统方法相比,三维 (3D) in vitro 模型提供了瘤结构和细胞矩阵相互作用的优越表现.
研究的目的:
- 开发和描述一个新的3D生物打印骨髓瘤模型.
- 评估模型模拟本地骨髓瘤微环境的能力.
- 评估该模型对临床前药物查和治疗策略探索的有用性.
主要方法:
- 使用OS球体在OS量身定制的生物油墨中制造了一种新的3D生物打印骨髓瘤模型.
- 生物油墨配方包括OS细胞衍生的脱细胞化细胞外矩阵 (ECM).
- 生物油墨特性 (例如含水量,凝,可打印性,生物相容性) 的表征和生物打印模型的生物反应的评估.
主要成果:
- 开发的生物墨水表现出了有利的特性,包括高含水量,快速的紫外线诱导凝,以及良好的打印性和生物相容性.
- 尽管压缩模量较低,3D生物打印模型表现出OS预后标记物的表达增加.
- 该模型显示对多克索鲁比的敏感性降低和P-糖蛋白的过度表达,表明化学抵抗机制的模仿.
结论:
- 新的3D生物打印骨髓瘤模型有效地复制了本地OS瘤微环境的关键方面,包括3D结构和ECM组成.
- 与传统模型相比,这种增强模型为临床前研究提供了更好的可靠性.
- 该模型具有很大的潜力,可以促进对骨髓瘤的新型治疗方法的发现.
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