人类新皮层中的发育异型多样性告知神经心理风险机制
Ashok Patowary1,2,3,4, Pan Zhang1,2,3,4, Connor Jops5,6,7
1Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA.
概括
在发育中的人类大脑中研究RNA拼接揭示了广泛的新型转录异型. 这种由RNA结合蛋白调节的异型多样性对于定义细胞身份和理解神经精神疾病至关重要.
科学领域:
- 神经科学
- 基因组学
- 分子生物学
背景情况:
- 在大脑中RNA拼接至关重要, 与神经精神疾病有关.
- 在人类大脑发育过程中,细胞类型特定的拼接和转录多样性仍未得到充分研究.
研究的目的:
- 系统地研究细胞类型特定的RNA拼接和转录异形多样性在人类新皮层的发展.
- 识别新型异构体,了解它们在细胞身份和神经精神疾病遗传学中的作用.
主要方法:
- 使用单分子长读测序进行深度转录组分析.
- 在组织和单细胞分辨率下分析人类新皮质的生殖区和皮质板.
主要成果:
- 确定了214,516种不同的RNA异型,其中72.6%是新型.
- 发现了由RNA结合蛋白控制的转录异形多样性对新皮层细胞身份的显著贡献.
- 通过全面的异形注释重新确定了数千种罕见的新风险变体.
结论:
- 转录同位体多样性在人类大脑发育和细胞身份中发挥着关键作用.
- 这项研究为通过新型异型发现了解神经精神疾病的遗传基础提供了基础.
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