TY - JOUR KW - Autism Spectrum Disorder KW - Autistic Disorder KW - Brain KW - CRISPR-Associated Protein 9 KW - CRISPR-Cas Systems KW - Cell Lineage KW - Chromatin KW - Developmental Disabilities KW - Gene Editing KW - Humans KW - Loss of Function Mutation KW - Mosaicism KW - Neurons KW - organoids KW - RNA, Guide, CRISPR-Cas Systems KW - Single-Cell Gene Expression Analysis KW - Transcription, Genetic AU - Chong Li AU - Jonas Simon Fleck AU - Catarina Martins-Costa AU - Thomas R. Burkard AU - Jan Themann AU - Marlene Stuempflen AU - Angela Maria Peer AU - Ábel Vertesy AU - Jamie B. Littleboy AU - Christopher Esk AU - Ulrich Elling AU - Gregor Kasprian AU - Nina S. Corsini AU - Barbara Treutlein AU - Juergen A. Knoblich AB - The development of the human brain involves unique processes (not observed in many other species) that can contribute to neurodevelopmental disorders1-4. Cerebral organoids enable the study of neurodevelopmental disorders in a human context. We have developed the CRISPR-human organoids-single-cell RNA sequencing (CHOOSE) system, which uses verified pairs of guide RNAs, inducible CRISPR-Cas9-based genetic disruption and single-cell transcriptomics for pooled loss-of-function screening in mosaic organoids. Here we show that perturbation of 36 high-risk autism spectrum disorder genes related to transcriptional regulation uncovers their effects on cell fate determination. We find that dorsal intermediate progenitors, ventral progenitors and upper-layer excitatory neurons are among the most vulnerable cell types. We construct a developmental gene regulatory network of cerebral organoids from single-cell transcriptomes and chromatin modalities and identify autism spectrum disorder-associated and perturbation-enriched regulatory modules. Perturbing members of the BRG1/BRM-associated factor (BAF) chromatin remodelling complex leads to enrichment of ventral telencephalon progenitors. Specifically, mutating the BAF subunit ARID1B affects the fate transition of progenitors to oligodendrocyte and interneuron precursor cells, a phenotype that we confirmed in patient-specific induced pluripotent stem cell-derived organoids. Our study paves the way for high-throughput phenotypic characterization of disease susceptibility genes in organoid models with cell state, molecular pathway and gene regulatory network readouts. BT - Nature DA - 2023-09 DO - 10.1038/s41586-023-06473-y IS - 7978 LA - eng N2 - The development of the human brain involves unique processes (not observed in many other species) that can contribute to neurodevelopmental disorders1-4. Cerebral organoids enable the study of neurodevelopmental disorders in a human context. We have developed the CRISPR-human organoids-single-cell RNA sequencing (CHOOSE) system, which uses verified pairs of guide RNAs, inducible CRISPR-Cas9-based genetic disruption and single-cell transcriptomics for pooled loss-of-function screening in mosaic organoids. Here we show that perturbation of 36 high-risk autism spectrum disorder genes related to transcriptional regulation uncovers their effects on cell fate determination. We find that dorsal intermediate progenitors, ventral progenitors and upper-layer excitatory neurons are among the most vulnerable cell types. We construct a developmental gene regulatory network of cerebral organoids from single-cell transcriptomes and chromatin modalities and identify autism spectrum disorder-associated and perturbation-enriched regulatory modules. Perturbing members of the BRG1/BRM-associated factor (BAF) chromatin remodelling complex leads to enrichment of ventral telencephalon progenitors. Specifically, mutating the BAF subunit ARID1B affects the fate transition of progenitors to oligodendrocyte and interneuron precursor cells, a phenotype that we confirmed in patient-specific induced pluripotent stem cell-derived organoids. Our study paves the way for high-throughput phenotypic characterization of disease susceptibility genes in organoid models with cell state, molecular pathway and gene regulatory network readouts. PY - 2023 SP - 373 EP - 380 T2 - Nature TI - Single-cell brain organoid screening identifies developmental defects in autism VL - 621 SN - 1476-4687 ER -