人类初级和iPSC衍生小岛的生物打印,其功能保留和可比
Miranda Poklar1, Ravikumar K1, Connor Wiegand1
1Department of Chemical and Petroleum Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15213, United States of America.
Biofabrication
|July 15, 2025
概括
使用酸盐/甲基纤维素生物墨水对功能性岛屿进行生物打印,成功地维持了细胞活力和功能. 诱导多能干细胞衍生小岛显示出作为1型糖尿病治疗的替代细胞来源的希望.
科学领域:
- 生物技术是生物技术.
- 再生医学是一种再生医学.
- 糖尿病研究 糖尿病研究
背景情况:
- 目前使用异构小岛的1型糖尿病 (T1D) 治疗需要免疫抑制.
- 用诱导多能干细胞 (iPSCs) 进行个性化细胞疗法提供了一个自主替代方案.
- 生物打印是一种潜在的方法,可以均地植入封装细胞用于治疗.
研究的目的:
- 研究生物打印功能小岛的可行性.
- 为了确定最佳的生物墨水,打印参数和岛屿生物打印的细胞配置.
- 评估生物打印初级人类小岛和iPSC衍生小岛的功能和可行性.
主要方法:
- 使用酸盐/甲基纤维素生物墨水对原始人类小岛和iPSC衍生小岛进行生物打印.
- 在印刷后评估细胞活力和功能.
- Sc-RNAseq分析以评估iPSC衍生小岛的遗传表达和代谢功能.
主要成果:
- 成功生物打印功能性初级人类小岛和iPSC衍生小岛.
- 在生物打印结构中,这两种细胞类型的持续功能.
- Sc-RNAseq证实印刷对iPSC衍生的小岛基因表达和代谢功能没有不良影响.
- 从iPSC衍生的小岛表现出与初级小岛相似的功能.
结论:
- 使用酸盐/甲基纤维素进行生物打印是创建功能性小岛结构的可行方法.
- 在生物打印后,iPSC衍生小岛保持其功能,为T1D提供了一个有希望的替代细胞来源.
- 这种方法可以减少T1D细胞移植治疗中免疫抑制的需要.
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