小脳機能障害は、プルキンエ細胞の顕著な喪失を伴うことが多い(Taroni and DiDonato、2004)。セロトニン(5-ヒドロキシトリプトアミン、5-HT)は、プルキンエ細胞が形態学的に成熟の制御下で報告されています(Kondohら、2004; Oostland and van Hooft、2013)。小脳オルガノイドの成熟プロトコル中の5-HT治療は、形態学的および生理学的にプルキンエ細胞の成熟のより高い効率につながると仮定されています。処置されたオルガノイドは、シナプス成熟の指標である同期バースト活動を示します。2
1 Data obtained in collaboration with Hopstem Bioengineering Co., Ltd., Hangzhou, Zhejiang, China. Organoid image on the first page, top right is courtesy of Dr. Anxin Wang. 2 Data obtained in collaboration with the Stem Cell Engineering Research Group (SCERG) at iBB – Institute for Biosciences and Bioengineering of Instituto Superior Técnico, Universidade de Lisboa, Portugal. Special thanks to Ana Rita Gomes, MsC, for carrying out the experiments.
References A. Wang, et al., “Comparison of Electrophysiological Tools of Brain Organoids derived from Human Induced Pluripotent Stem Cells,” ISSCR 2020 Virtual, June 23-27, 2020.
F. Taroni & S. DiDonato, “Pathways to motor incoordination: the inherited ataxia,” Nature Reviews Neuroscience, 5(8), 641-655, 2004.
M. Kondoh, et al., “Kondoh, Mayumi, Takashi Shiga, and Nobuo Okado. “Regulation of dendrite formation of Purkinje cells by serotonin through serotonin1A and serotonin2A receptors in culture,” Neuroscience research, 48(1), 101-109, 2004.
M. Obien, et al., “Accurate signal-source localization in brain slices by means of high-density microelectrode arrays,” Scientific Reports, 9(1), 1-10, 2019.
M. Oostland & J. A. Van Hooft, “The role of serotonin in cerebellar development,” Neuroscience, 248, 201-212, 2013.
T. P. Silva, et al., “Maturation of Human Pluripotent Stem Cell-Derived Cerebellar Neurons in the Absense of Co-Culture,” Front. Bioeng. Biotechnol., 8, 70, 2020.
U. Frey, et al., “Depth recording capabilities of planar high-density microelectrode arrays,” 4th Intl. IEEE/EMBS Conf. on Neural Engineering, 207-210, 2009.
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