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Transcription factor ZNF263 primes human embryonic stem cells for pluripotency dissolution and early differentiation [scRNA-seq]

ABSTRACT: Conventional human embryonic stem cells (hESCs) are capable of self-renewal and simultaneously poised for differentiation, and thus have been considered to resemble a primed pluripotent state. But the underlying regulatory mechanisms remain largely underexplored. Especially, little was known about the pivotal transcription factors (TFs) driving hESCs through the naïve-to-primed transition to prepare for differentiation. Here, we conduct a large-scale in-silico screening and identify ZNF263 as a new key TF in primed hESCs, as evidenced by its extensive binding capacity at the active and poised genes. Genetic and functional assays reveal that ZNF263 directly initiates the incipient expression of early differentiation genes and concurrently dampens the core pluripotency circuitry in hESCs, greatly tilting the balance from pluripotency maintenance to lineage priming. Importantly, ZNF263 deficiency in hESCs further led to clear defects in pluripotency dissolution and lineage commitment, suggesting it’s indispensably required for the whole process. Together, our results demonstrate a pivotal role of ZNF263 in coordinating the establishment of primed pluripotency state in hESCs and facilitating the differentiation into primary germ layer lineages, which opens a new gate for understanding the central regulatory network governing human early development.

ORGANISM(S): Homo sapiens

PROVIDER: GSE242905 | GEO | 2025/11/13

REPOSITORIES: GEO

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Transcription factor ZNF263 primes human embryonic stem cells for pluripotency dissolution and early differentiation [ChIP-seq]

Project description:Conventional human embryonic stem cells (hESCs) are capable of self-renewal and simultaneously poised for differentiation, and thus have been considered to resemble a primed pluripotent state. But the underlying regulatory mechanisms remain largely underexplored. Especially, little was known about the pivotal transcription factors (TFs) driving hESCs through the naïve-to-primed transition to prepare for differentiation. Here, we conduct a large-scale in-silico screening and identify ZNF263 as a new key TF in primed hESCs, as evidenced by its extensive binding capacity at the active and poised genes. Genetic and functional assays reveal that ZNF263 directly initiates the incipient expression of early differentiation genes and concurrently dampens the core pluripotency circuitry in hESCs, greatly tilting the balance from pluripotency maintenance to lineage priming. Importantly, ZNF263 deficiency in hESCs further led to clear defects in pluripotency dissolution and lineage commitment, suggesting it’s indispensably required for the whole process. Together, our results demonstrate a pivotal role of ZNF263 in coordinating the establishment of primed pluripotency state in hESCs and facilitating the differentiation into primary germ layer lineages, which opens a new gate for understanding the central regulatory network governing human early development.

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The functional role of OGDH for maintaining mitochondrial respiration and identity of primed human embryonic stem cells

Project description:Human embryonic stem cells (hESCs) can self-renew infinitely or differentiate into the 3 germ layer lineages in vitro with certain cues, holding great promise to model early human embryo development ex vivo. It is wildly accepted that hESCs take advantage of both glycolysis and mitochondrial respiration to favor the naïve pluripotency, while prefer glycolysis to support the primed pluripotency. Thus, the function of mitochondrial respiration in primed hESCs has been underestimated for a long time, and has not been fully understood yet. Herein, we report that the adenosine triphosphate (ATP) production rate is comparable between mitochondrial respiration and glycolysis, suggesting that mitoATP may serve as one of the major sources of the ATP pool in primed hESCs. To further reveal the function of mitochondrial respiration, we deployed inducible CRISPRi method to inhibit OGDH expression with high efficiency, resulting in the TCA cycle blockade as well as the diminishment of mitochondrial respiration activity and total ATP level. Of note, OGDH deficiency led to the exit of primed pluripotency accompanied by cell death. Furthermore, the treatment with small molecule inhibitors to block electron transport chain (ETC) can phenocopy the loss-of-function of OGDH in hESCs. Therefore, genetic and pharmacological perturbations on mitochondrial respiration can impair the stemness of primed hESCs. Collectively, the current study unveils that OGDH acts as a key regulator to fine-tune the abundance of TCA cycle metabolites to ensure the mitochondrial respiration activity in primed hESCs, and highlights the pivotal roles of mitochondrial respiration in terms of ATP production and the maintenance of primed pluripotency. Our findings may provide insights into the linkage between pluripotent states and energy metabolism in hESCs.

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