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. 2025 Nov 13:102713.
doi: 10.1016/j.stemcr.2025.102713. Online ahead of print.

Benchmarking and optimizing Perturb-seq in differentiating human pluripotent stem cells

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Free article

Benchmarking and optimizing Perturb-seq in differentiating human pluripotent stem cells

Sushama Sivakumar et al. Stem Cell Reports. .
Free article

Abstract

Perturb-seq is a powerful approach to systematically assess how genes and enhancers impact the molecular and cellular pathways of development and disease. However, technical challenges have limited its application in stem-cell-based systems. Here, we benchmarked Perturb-seq across multiple CRISPRi modalities, on diverse genomic targets, in multiple human pluripotent stem cells, during directed differentiation to multiple lineages, and across multiple single guide RNA (sgRNA) delivery systems. To ensure cost-effective production of large-scale Perturb-seq datasets as part of the Impact of Genomic Variants on Function (IGVF) consortium, our optimized protocol dynamically assesses experiment quality across the weeks-long procedure. Our analysis of 1,996,260 sequenced cells across benchmarking datasets reveals shared regulatory networks linking disease-associated enhancers and genes with downstream targets during cardiomyocyte differentiation. This study establishes open tools and resources for interrogating genome function during stem cell differentiation.

Keywords: CRISPR/Cas9; Perturb-seq; cardiomyocytes; human pluripotent stem cells; neural progenitor cells; single-cell genomics.

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Conflict of interest statement

Declaration of interests The authors declare no competing interests.

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