期刊
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
卷 8, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2020.610427
关键词
human induced pluripotent stem cells; organoids; forebrain; Rett syndrome; disease modeling; neurodevelopmental disorders
资金
- Fundacao para a Ciencia e a Tecnologia (FCT), Portugal, through iBB, Institute for Bioengineering and Biosciences [UIDB/04565/2020]
- Programa Operacional Regional de Lisboa 2020 [007317]
- FCT [PD/BD/128373/2017]
- Fundação para a Ciência e a Tecnologia [PD/BD/128373/2017] Funding Source: FCT
Engineering brain organoids from human induced pluripotent stem cells (hiPSCs) is a powerful tool for modeling brain development and neurological disorders. Rett syndrome (RTT), a rare neurodevelopmental disorder, can greatly benefit from this technology, since it affects multiple neuronal subtypes in forebrain sub-regions. We have established dorsal and ventral forebrain organoids from control and RTT patient-specific hiPSCs recapitulating 3D organization and functional network complexity. Our data revealed a premature development of the deep-cortical layer, associated to the formation of TBR1 and CTIP2 neurons, and a lower expression of neural progenitor/proliferative cells in female RTT dorsal organoids. Moreover, calcium imaging and electrophysiology analysis demonstrated functional defects of RTT neurons. Additionally, assembly of RTT dorsal and ventral organoids revealed impairments of interneuron's migration. Overall, our models provide a better understanding of RTT during early stages of neural development, demonstrating a great potential for personalized diagnosis and drug screening.
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