Genetically engineered cerebral organoids model brain tumor formation.

Genetically engineered cerebral organoids model brain tumor formation.
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DOI:
10.1038/s41592-018-0070-7
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发表时间:
2018-08
期刊:
影响因子:
48
通讯作者:
Knoblich JA
Knoblich JA
中科院分区:
生物学1区
文献类型:
--
作者:
Bian S;Repic M;Guo Z;Kavirayani A;Burkard T;Bagley JA;Krauditsch C;Knoblich JA

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脑瘤是最致命、最具破坏性的癌症之一。他们的研究受到遗传异质性和现有实验室模型不完整的限制。三维有机培养模型为模拟人类疾病提供了创新的可能性。在这里,我们建立了一个名为肿瘤脑器官(New COR)的3D体外模型,在该模型中,我们通过转座子和CRISPR/Cas9介导的突变在脑器官中引入致癌突变,从而概述了脑肿瘤的发生。通过筛选在癌症基因组计划中发现的与临床相关的突变,我们定义了导致胶质母细胞瘤样和中枢神经系统原始神经外胚层瘤(CNS-PNET)样肿瘤的突变组合。我们证明,新的CORs适合于研究肿瘤生物学的各个方面,如侵袭性,并在特定DNA异常的背景下评估药物的效果。新的CORS将为目前研究脑肿瘤生物学的基础和临床前模型提供有价值的补充。
Brain tumours are among the most lethal and devastating cancers. Their study is limited by genetic heterogeneity and the incompleteness of available laboratory models. Three-dimensional organoid culture models offer innovative possibilities for modelling human disease. Here, we establish a 3D in vitro model, named neoplastic cerebral organoid (neoCOR), in which we recapitulate brain tumorigenesis by introducing oncogenic mutations in cerebral organoids via transposon- and CRISPR/Cas9-mediated mutagenesis. By screening clinically-relevant mutations identified in cancer genome projects, we define mutation combinations that result in glioblastoma-like and central nervous system primitive neuroectodermal tumour (CNS-PNET)-like neoplasms. We demonstrate that neoCORs are suitable to study aspects of tumour biology such as invasiveness, and to evaluate the effect of drugs in the context of specific DNA aberrations. neoCORs will provide a valuable complement to current basic and preclinical models for studying brain tumour biology.
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