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Zhang H, Wang Y, Hu Z, Wu Y, Chen N, Zhu Y, Yu Y, Fan H, Wang H. Zygotic Splicing Activation of the Transcriptome is a Crucial Aspect of Maternal-to-Zygotic Transition and Required for the Conversion from Totipotency to Pluripotency. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308496. [PMID: 38308190 PMCID: PMC11005748 DOI: 10.1002/advs.202308496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/27/2023] [Indexed: 02/04/2024]
Abstract
During maternal-to-zygotic transition (MZT) in the embryo, mRNA undergoes complex post-transcriptional regulatory processes. However, it is unclear whether and how alternative splicing plays a functional role in MZT. By analyzing transcriptome changes in mouse and human early embryos, dynamic changes in alternative splicing during MZT are observed and a previously unnoticed process of zygotic splicing activation (ZSA) following embryonic transcriptional activation is described. As the underlying mechanism of RNA splicing, splicing factors undergo dramatic maternal-to-zygotic conversion. This conversion relies on the key maternal factors BTG4 and PABPN1L and is zygotic-transcription-dependent. CDK11-dependent phosphorylation of the key splicing factor, SF3B1, and its aggregation with SRSF2 in the subnuclear domains of 2-cell embryos are prerequisites for ZSA. Isoforms generated by erroneous splicing, such as full-length Dppa4, hinder normal embryonic development. Moreover, alternative splicing regulates the conversion of early embryonic blastomeres from totipotency to pluripotency, thereby affecting embryonic lineage differentiation. ZSA is an essential post-transcriptional process of MZT and has physiological significance in generating new life. In addition to transcriptional activation, appropriate expression of transcript isoforms is also necessary for preimplantation embryonic development.
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Affiliation(s)
- Hua Zhang
- MOA Key Laboratory of Animal VirologyCenter for Veterinary SciencesZhejiang UniversityHangzhou310058China
- Department of Veterinary MedicineCollege of Animal SciencesZhejiang UniversityHangzhou310058China
| | - Yang Wang
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Zhe‐Wei Hu
- MOA Key Laboratory of Animal VirologyCenter for Veterinary SciencesZhejiang UniversityHangzhou310058China
| | - Yun‐Wen Wu
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Nuo Chen
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
| | - Yi‐Min Zhu
- Department of Reproductive EndocrinologyWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouZhejiang310002China
| | - Yuan‐Song Yu
- Savaid Stomatology SchoolHangzhou Medical CollegeHangzhou310053China
| | - Heng‐Yu Fan
- MOE Key Laboratory for Biosystems Homeostasis and Protection and Innovation Center for Cell Signaling NetworkLife Sciences InstituteZhejiang UniversityHangzhou310058China
- Assisted Reproduction UnitDepartment of Obstetrics and GynecologySir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhou310016China
- Center for Biomedical ResearchShaoxing InstituteZhejiang UniversityShaoxing312000China
| | - Hua‐Nan Wang
- MOA Key Laboratory of Animal VirologyCenter for Veterinary SciencesZhejiang UniversityHangzhou310058China
- Department of Veterinary MedicineCollege of Animal SciencesZhejiang UniversityHangzhou310058China
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Hu Y, Wang Y, He Y, Ye M, Yuan J, Ren C, Wang X, Wang S, Guo Y, Cao Q, Zhou S, Wang B, He A, Hu J, Guo X, Shu W, Huo R. Maternal KLF17 controls zygotic genome activation by acting as a messenger for RNA Pol II recruitment in mouse embryos. Dev Cell 2024; 59:613-626.e6. [PMID: 38325372 DOI: 10.1016/j.devcel.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 09/01/2023] [Accepted: 01/17/2024] [Indexed: 02/09/2024]
Abstract
Initiation of timely and sufficient zygotic genome activation (ZGA) is crucial for the beginning of life, yet our knowledge of transcription factors (TFs) contributing to ZGA remains limited. Here, we screened the proteome of early mouse embryos after cycloheximide (CHX) treatment and identified maternally derived KLF17 as a potential TF for ZGA genes. Using a conditional knockout (cKO) mouse model, we further investigated the role of maternal KLF17 and found that it promotes embryonic development and full fertility. Mechanistically, KLF17 preferentially binds to promoters and recruits RNA polymerase II (RNA Pol II) in early 2-cell embryos, facilitating the expression of major ZGA genes. Maternal Klf17 knockout resulted in a downregulation of 9% of ZGA genes and aberrant RNA Pol II pre-configuration, which could be partially rescued by introducing exogenous KLF17. Overall, our study provides a strategy for screening essential ZGA factors and identifies KLF17 as a crucial TF in this process.
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Affiliation(s)
- Yue Hu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | | | - Yuanlin He
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Maosheng Ye
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Jie Yuan
- Bioinformatics Center of AMMS, Beijing, China
| | - Chao Ren
- Bioinformatics Center of AMMS, Beijing, China
| | - Xia Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Siqi Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Yueshuai Guo
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Qiqi Cao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Shuai Zhou
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Bing Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Anlan He
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | | | - Xuejiang Guo
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China
| | - Wenjie Shu
- Bioinformatics Center of AMMS, Beijing, China.
| | - Ran Huo
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Suzhou Affiliated Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Nanjing, China; Innovation Center of Suzhou Nanjing Medical University, Suzhou, China.
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Fang S, Wang J, Liu G, Qu B, Chunyu J, Xu W, Xiang J, Li X. DPPA2/4 Promote the Pluripotency and Proliferation of Bovine Extended Pluripotent Stem Cells by Upregulating the PI3K/AKT/GSK3β/β-Catenin Signaling Pathway. Cells 2024; 13:382. [PMID: 38474345 DOI: 10.3390/cells13050382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/12/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Developmental pluripotency-associated 2 (DPPA2) and DPPA4 are crucial transcription factors involved in maintaining pluripotency in humans and mice. However, the role of DPPA2/4 in bovine extended pluripotent stem cells (bEPSCs) has not been investigated. In this study, a subset of bEPSC-related differentially expressed genes (DEGs), including DPPA2 and DPPA4, was identified based on multiomics data (ATAC-seq and RNA-seq). Subsequent investigations revealed that double overexpression of DPPA2/4 facilitates the reprogramming of bovine fetal fibroblasts (BFFs) into bEPSCs, whereas knockout of DPPA2/4 in BFFs leads to inefficient reprogramming. DPPA2/4 overexpression and knockdown experiments revealed that the pluripotency and proliferation capability of bEPSCs were maintained by promoting the transition from the G1 phase to the S phase of the cell cycle. By activating the PI3K/AKT/GSK3β/β-catenin pathway in bEPSCs, DPPA2/4 can increase the nuclear accumulation of β-catenin, which further upregulates lymphoid enhancer binding factor 1 (LEF1) transcription factor activity. Moreover, DPPA2/4 can also regulate the expression of LEF1 by directly binding to its promoter region. Overall, our results demonstrate that DPPA2/4 promote the reprogramming of BFFs into bEPSCs while also maintaining the pluripotency and proliferation capability of bEPSCs by regulating the PI3K/AKT/GSK3β/β-catenin pathway and subsequently activating LEF1. These findings expand our understanding of the gene regulatory network involved in bEPSC pluripotency.
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Affiliation(s)
- Shu Fang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Jing Wang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Guangbo Liu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Burong Qu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Jian Chunyu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Wenqiang Xu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Jinzhu Xiang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
| | - Xueling Li
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot 010070, China
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Taubenschmid-Stowers J, Reik W. Human 8-cell embryo-like cells from pluripotent stem cells. Curr Opin Genet Dev 2023; 81:102066. [PMID: 37356343 DOI: 10.1016/j.gde.2023.102066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/28/2023] [Accepted: 05/24/2023] [Indexed: 06/27/2023]
Abstract
The totipotent embryo initiates transcription during zygotic or embryonic genome activation (EGA, ZGA). ZGA occurs at the 8-cell stage in humans and its failure leads to developmental arrest. Understanding the molecular pathways underlying ZGA and totipotency is essential to comprehend human development. Recently, human 8-cell-like cells (8CLCs) have been discovered in vitro that resemble the 8-cell embryo. 8CLCs exist among naive pluripotent stem cells and can be induced genetically or chemically. Their ZGA-like transcriptome, transposable element activation, 8-cell embryo-specific protein expression, and developmental properties make them an exceptional model system to study early embryonic cell-state transitions and human totipotency programs in vitro.
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Affiliation(s)
| | - Wolf Reik
- Altos Labs Cambridge Institute of Science, Cambridge, UK; Babraham Institute, Cambridge, UK; Wellcome Sanger Institute, Cambridge, UK; Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK. https://twitter.com/@ReikLab
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Regulation, functions and transmission of bivalent chromatin during mammalian development. Nat Rev Mol Cell Biol 2023; 24:6-26. [PMID: 36028557 DOI: 10.1038/s41580-022-00518-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2022] [Indexed: 12/25/2022]
Abstract
Cells differentiate and progress through development guided by a dynamic chromatin landscape that mediates gene expression programmes. During development, mammalian cells display a paradoxical chromatin state: histone modifications associated with gene activation (trimethylated histone H3 Lys4 (H3K4me3)) and with gene repression (trimethylated H3 Lys27 (H3K27me3)) co-occur at promoters of developmental genes. This bivalent chromatin modification state is thought to poise important regulatory genes for expression or repression during cell-lineage specification. In this Review, we discuss recent work that has expanded our understanding of the molecular basis of bivalent chromatin and its contributions to mammalian development. We describe the factors that establish bivalency, especially histone-lysine N-methyltransferase 2B (KMT2B) and Polycomb repressive complex 2 (PRC2), and consider evidence indicating that PRC1 shapes bivalency and may contribute to its transmission between generations. We posit that bivalency is a key feature of germline and embryonic stem cells, as well as other types of stem and progenitor cells. Finally, we discuss the relevance of bivalent chromtin to human development and cancer, and outline avenues of future research.
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Gassler J, Kobayashi W, Gáspár I, Ruangroengkulrith S, Mohanan A, Gómez Hernández L, Kravchenko P, Kümmecke M, Lalic A, Rifel N, Ashburn RJ, Zaczek M, Vallot A, Cuenca Rico L, Ladstätter S, Tachibana K. Zygotic genome activation by the totipotency pioneer factor Nr5a2. Science 2022; 378:1305-1315. [PMID: 36423263 DOI: 10.1126/science.abn7478] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Life begins with a switch in genetic control from the maternal to the embryonic genome during zygotic genome activation (ZGA). Despite its importance, the essential regulators of ZGA remain largely unknown in mammals. On the basis of de novo motif searches, we identified the orphan nuclear receptor Nr5a2 as a key activator of major ZGA in mouse two-cell embryos. Nr5a2 is required for progression beyond the two-cell stage. It binds to its motif within SINE B1/Alu retrotransposable elements found in cis-regulatory regions of ZGA genes. Chemical inhibition suggests that 72% of ZGA genes are regulated by Nr5a2 and potentially other orphan nuclear receptors. Nr5a2 promotes chromatin accessibility during ZGA and binds nucleosomal DNA in vitro. We conclude that Nr5a2 is an essential pioneer factor that regulates ZGA.
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Affiliation(s)
- Johanna Gassler
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany.,Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Wataru Kobayashi
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Imre Gáspár
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | | | - Adarsh Mohanan
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Laura Gómez Hernández
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Pavel Kravchenko
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Maximilian Kümmecke
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Aleksandar Lalic
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Nikita Rifel
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Robert John Ashburn
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Maciej Zaczek
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Antoine Vallot
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Laura Cuenca Rico
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Sabrina Ladstätter
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Kikuë Tachibana
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany.,Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
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Simultaneous Inhibition of Histone Deacetylases and RNA Synthesis Enables Totipotency Reprogramming in Pig SCNT Embryos. Int J Mol Sci 2022; 23:ijms232214142. [PMID: 36430635 PMCID: PMC9697165 DOI: 10.3390/ijms232214142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022] Open
Abstract
Combining somatic cell nuclear transfer (SCNT) with genome editing technologies has emerged as a powerful platform for the creation of unique swine lineages for agricultural and biomedical applications. However, successful application of this research platform is still hampered by the low efficiency of these technologies, particularly in attaining complete cell reprogramming for the production of cloned pigs. Treating SCNT embryos with histone deacetylase inhibitors (HDACis), such as Scriptaid, has been routinely used to facilitate chromatin reprogramming after nuclear transfer. While increasing histone acetylation leads to a more relaxed chromatin configuration that facilitates the access of reprogramming factors and DNA repair machinery, it may also promote the expression of genes that are unnecessary or detrimental for normal embryo development. In this study, we evaluated the impact of inhibiting both histone deacetylases and RNA synthesis on pre- and post-implantation development of pig SCNT embryos. Our findings revealed that transcription can be inhibited for up to 40 h of development in porcine embryos, produced either by activation, fertilization or SCNT, without detrimentally affecting their capacity to form a blastocyst and their average number of cells at this developmental stage. Importantly, inhibiting RNA synthesis during HDACi treatment resulted in SCNT blastocysts with a greater number of cells and more abundant transcripts for genes related to embryo genome activation on days 2, 3 and 4 of development, compared to SCNT embryos that were treated with HDACi only. In addition, concomitant inhibition of histone deacetylases and RNA synthesis promoted the full reprograming of somatic cells, as evidenced by the normal fetal and full-term development of SCNT embryos. This combined treatment may improve the efficiency of the genome-editing + SCNT platform in swine, which should be further tested by transferring more SCNT embryos and evaluating the health and growth performance of the cloned pigs.
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Zhang C, Wen H, Liu S, Fu E, Yu L, Chen S, Han Q, Li Z, Liu N. Maternal Factor Dppa3 Activates 2C-Like Genes and Depresses DNA Methylation in Mouse Embryonic Stem Cells. Front Cell Dev Biol 2022; 10:882671. [PMID: 35721479 PMCID: PMC9203971 DOI: 10.3389/fcell.2022.882671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Mouse embryonic stem cells (ESCs) contain a rare cell population of “two-cell embryonic like” cells (2CLCs) that display similar features to those found in the two-cell (2C) embryo and thus represent an in vitro model for studying the progress of zygotic genome activation (ZGA). However, the positive regulator determinants of the 2CLCs’ conversion and ZGA have not been completely elucidated. Here, we identify a new regulator promoting 2CLCs and ZGA transcripts. Through a combination of overexpression (OE), knockdown (KD), together with transcriptional analysis and methylome analysis, we find that Dppa3 regulates the 2CLC-associated transcripts, DNA methylation, and 2CLC population in ESCs. The differentially methylated regions (DMRs) analysis identified 6,920 (98.2%) hypomethylated, whilst only 129 (1.8%) hypermethylated, regions in Dppa3 OE ESCs, suggesting that Dppa3 facilitates 2CLCs reprogramming. The conversion to 2CLCs by overexpression of Dppa3 is also associated with DNA damage response. Dppa3 knockdown manifest impairs transition into the 2C-like state. Global DNA methylome and chromatin state analysis of Dppa3 OE ESCs reveal that Dppa3 facilitates the chromatin configuration to 2CLCs reversion. Our finding for the first time elucidates a novel role of Dppa3 in mediating the 2CLC conversion, and suggests that Dppa3 is a new regulator for ZGA progress.
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Affiliation(s)
- Chuanyu Zhang
- School of Medicine, Nankai University, Tianjin, China
| | - Hang Wen
- School of Medicine, Nankai University, Tianjin, China
| | - Siying Liu
- School of Medicine, Nankai University, Tianjin, China
| | - Enze Fu
- School of Medicine, Nankai University, Tianjin, China
| | - Lu Yu
- School of Medicine, Nankai University, Tianjin, China
| | - Shang Chen
- School of Medicine, Nankai University, Tianjin, China
| | - Qingsheng Han
- School of Medicine, Nankai University, Tianjin, China
| | - Zongjin Li
- School of Medicine, Nankai University, Tianjin, China
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences Nankai University, Tianjin, China
- *Correspondence: Zongjin Li, ; Na Liu,
| | - Na Liu
- School of Medicine, Nankai University, Tianjin, China
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences Nankai University, Tianjin, China
- *Correspondence: Zongjin Li, ; Na Liu,
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Balaton BP, Pasque V. Human 8-cell-like cells discovered. Cell Stem Cell 2022; 29:347-348. [PMID: 35245463 DOI: 10.1016/j.stem.2022.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Human naive pluripotent stem cells have the remarkable ability to generate blastoids comprising trophectoderm, epiblast, and hypoblast-like cells. In this issue, Taubenschmid-Stowers et al. (2022) show that human naive pluripotent stem cell cultures contain cells that resemble the 8-cell human embryo, providing a model to study zygotic genome activation.
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Affiliation(s)
- Bradley P Balaton
- KU Leuven-University of Leuven, Department of Development and Regeneration, Leuven Institute for Single-Cell Omics (LISCO), Leuven Stem Cell Institute, Leuven, Belgium.
| | - Vincent Pasque
- KU Leuven-University of Leuven, Department of Development and Regeneration, Leuven Institute for Single-Cell Omics (LISCO), Leuven Stem Cell Institute, Leuven, Belgium.
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