Mispatterning and interneuron deficit in Tourette Syndrome basal ganglia organoids.
Mispatterning and interneuron deficit in Tourette Syndrome basal ganglia organoids.
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DOI:
10.1038/s41380-022-01880-5
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发表时间:
2022-12
影响因子:
11
通讯作者:
Vaccarino, Flora M.
中科院分区:
文献类型:
--
作者:
Brady, Melanie V.;Mariani, Jessica;Koca, Yildiz;Szekely, Anna;King, Robert A.;Bloch, Michael H.;Landeros-Weisenberger, Angeli;Leckman, James F.;Vaccarino, Flora M.
Tourette Syndrome (TS) is a neuropsychiatric disorder thought to involve a reduction of basal ganglia (BG) interneurons and malfunctioning of the BG circuitry. However, whether interneurons fail to develop or are lost postnatally remains unknown. To investigate the pathophysiology of early development in TS, induced pluripotent stem cell (iPSC)-derived BG organoids from TS patients and healthy controls were compared on multiple levels of measurement and analysis. BG organoids from TS individuals manifested an impaired medial ganglionic eminence fate and a decreased differentiation of cholinergic and GABAergic interneurons. Transcriptome analyses revealed organoid mispatterning in TS, with a preference for dorsolateral at the expense of ventromedial fates. Our results point to altered expression of GLI transcription factors downstream of the Sonic Hedgehog signaling pathway with cilia disruption at the earliest stages of BG organoid differentiation as a potential mechanism for the BG mispatterning in TS. This study uncovers early neurodevelopmental underpinnings of TS neuropathological deficits using organoids as a model system.
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通讯作者:
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