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Abstract

Biology

小鼠肝细胞类器官的建立与遗传操作

Published: February 12th, 2022

DOI:

10.3791/62438

1Key Laboratory of Experimental Teratology, Ministry of Education, Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Stem Cell and Regenerative Medicine Research Center, Cheeloo College of Medicine, Shandong University, 2The Research Center of Stem Cell and Regenerative Medicine, Shandong University Cheeloo Medical College, School of Basic Medical Sciences, Shandong University
* These authors contributed equally

Abstract

肝脏是哺乳动物最大的器官。它在葡萄糖储存,蛋白质分泌,代谢和解毒中起重要作用。作为大多数肝功能的执行者,原代肝细胞的增殖能力有限。这就需要建立 离体 肝细胞扩增模型,用于肝脏生理和病理研究。在这里,我们通过两步胶原酶灌注分离小鼠肝细胞,并建立了3D类器官培养物作为"迷你肝脏",以概括细胞 - 细胞相互作用和物理功能。类器官由异质细胞群组成,包括祖细胞和成熟肝细胞。我们详细介绍了分离和培养小鼠肝细胞或胎儿肝细胞在2-3周内形成类器官的过程,并展示了如何通过机械上下移液来通过它们。此外,我们还将介绍如何将类器官消化成单细胞,用于shRNA/异位构建的慢病毒感染,siRNA转染和CRISPR-Cas9工程。类器官可用于药物筛选,疾病建模和基础肝脏研究,通过模拟肝脏生物学和病理生物学。

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