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All-defined NGN2 neuron protocol reveals multifaceted signatures of neuronal maturation [scRNA-seq]

ABSTRACT: Direct conversion of iPSCs into neurons by NGN2 over-expression is a popular method for disease modeling. Here we report a standardized method to generate functional excitatory cortical neurons using clonal, targeted engineered iPSC lines and defined reagents. We demonstrate that our protocol generates consistent excitatory cortical neurons at scale. These cultures can be maintained healthily for at least 150 days and expresses the majority of the GWAS genes found in autism, Parkinson’s disease, and Alzheimer’s disease. Comprehensive temporal omics, functional, and morphological profiling demonstrated continued progression of neuronal maturation. Deep functional characterization through transcriptomic, imaging, and functional assays revealed the coordinated action of multiple pathways in neuronal maturation. Our method and profiling data can serve as reference for developing human in vitro neuronal models for disease modeling.

ORGANISM(S): Homo sapiens

PROVIDER: GSE244370 | GEO | 2024/09/15

REPOSITORIES: GEO

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All-defined NGN2 neuron protocol reveals multifaceted signatures of neuronal maturation [bulk_media]

Project description:Direct conversion of iPSCs into neurons by NGN2 over-expression is a popular method for disease modeling. Here we report a standardized method to generate functional excitatory cortical neurons using clonal, targeted engineered iPSC lines and defined reagents. We demonstrate that our protocol generates consistent excitatory cortical neurons at scale. These cultures can be maintained healthily for at least 150 days and expresses the majority of the GWAS genes found in autism, Parkinson’s disease, and Alzheimer’s disease. Comprehensive temporal omics, functional, and morphological profiling demonstrated continued progression of neuronal maturation. Deep functional characterization through transcriptomic, imaging, and functional assays revealed the coordinated action of multiple pathways in neuronal maturation. Our method and profiling data can serve as reference for developing human in vitro neuronal models for disease modeling.

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Fully defined NGN2 neuron protocol reveals diverse signatures of neuronal maturation

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2021-08-05 | E-MTAB-10632 | biostudies-arrayexpress

Fully defined NGN2 neuron protocol reveals diverse signatures of neuronal maturation

Project description:This bulk RNAseq dataset is part of a dataset described in the manuscript titled "Fully defined NGN2 neuron protocol reveals diverse signatures of neuronal maturation". This dataset includes NPC derived neurons using a wild type iPSC line, and was used to validate a MS-117 maturation score which attempt to establish a socre system to assess neuronal maturation with iPSCs derived neurons.

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Individual Human Cortical Progenitors Can Produce Excitatory and Inhibitory Neurons

Project description:The cerebral cortex is a cellularly-complex structure comprised of a rich diversity of neuronal and glial cell types. Cortical neurons can be broadly categorized into two classes—glutamatergic excitatory neurons and GABAergic inhibitory interneurons. Previous developmental studies in rodents have led to the prevailing model that while excitatory neurons are born from progenitors located in the cortex, cortical interneurons are born from a separate population of progenitors located outside of the developing cortex in the ganglionic eminences1-5. However, the developmental potential of human cortical progenitors has not been thoroughly explored. Here we show that in addition to excitatory neurons and glia, human cortical progenitors are also capable of producing GABAergic neurons with the transcriptional characteristics and morphologies of cortical interneurons. By developing a cellular barcoding tool called “ScRNAseq-compatible Tracer for Identifying Clonal Relationships” (STICR), we were able to perform clonal lineage tracing of 1912 primary human cortical progenitors from six specimens and capture both the transcriptional identities and clonal relationships of their resulting progeny. A subpopulation of cortically-born GABAergic neurons were transcriptionally similar to cortical interneurons born from the caudal ganglionic eminence and these cells were frequently related to excitatory neurons and glia. Thus, our results demonstrate that individual human cortical progenitors can generate both excitatory neurons and cortical interneurons, providing a new framework for understanding the origins of neuronal diversity in the human cortex.

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