从诱导的多能干干细胞生成3D肝脏微组织
1Department of Biohealth Convergence, College of Science and Convergence Technology, Seoul Women's University, Seoul, Republic of Korea.
Tissue engineering. Part A
|February 6, 2026
概括
研究人员使用人类诱导的多能干细胞开发了一种新的3D微组织肝脏模型. 这种先进的平台精确地模仿肝脏结构和功能,为研究肝脏疾病和测试疗法提供了新的途径.
科学领域:
- 再生医学是一种再生医学.
- 肝病学 肝病学是一种肝病学.
- 生物技术是生物技术.
背景情况:
- 肝脏的复杂功能对健康至关重要,但损伤会导致肝硬化,移植是唯一的治疗方法.
- 目前的体外模型和动物研究未能复制肝脏稳态和疾病至关重要的复杂的多细胞相互作用.
- 对于研究和药物开发而言,急需先进的体外肝脏模型,以模仿本地肝脏的复杂性.
研究的目的:
- 建立一个生理上相关的三维 (3D) 微组织平台,重复人类肝脏的结构和功能.
- 使用人类诱导的多能干细胞 (hiPSCs) 创建一个多细胞体外模型,用于研究肝脏疾病.
- 开发一种与翻译相关的系统,用于研究肝脏病变,药物毒性和个性化治疗.
主要方法:
- 分化了hiPSCs成肝细胞 (Heps),肝星细胞 (HSCs) 和肝脏侧侧内皮细胞 (LSECs).
- 在自我组织的3D微环境中共同培养这些差异化细胞,形成微组织.
- 利用微组织来建模酒精诱导的脂肪生成,并评估肝功能.
主要成果:
- 成功重建了一个小型化的,功能性的人类肝脏微组织模型.
- 3D微组织显示了与原生肝脏相似的结构和功能特征.
- 该模型对酒精暴露表现出稳性反应,验证了其用于疾病建模的实用性.
结论:
- 由hiPSC衍生的3D微组织平台提供了一个强大的体外系统,用于模拟人类肝脏生理和疾病.
- 这种先进的模型有助于在慢性肝病中研究细胞间信号传递和纤维基因路径.
- 该平台为药物毒性测试和为肝脏疾病开发个性化治疗策略提供了巨大的潜力.
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