1
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Lai H, Yang Y, Zhang J. Advances in post-translational modifications and recurrent spontaneous abortion. Gene 2024; 927:148700. [PMID: 38880188 DOI: 10.1016/j.gene.2024.148700] [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: 01/31/2024] [Revised: 05/25/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Recurrent spontaneous abortion (RSA) is defined as two or more pregnancy loss, which affects approximately 1-2% of women's fertility. The etiology of RSA has not yet been fully revealed, which poses a great problem for clinical treatment. Post- translational modifications(PTMs) are chemical modifications that play a crucial role in the functional proteome. A considerable number of published studies have shown the relationship between post-translational modifications of various proteins and RSA. The study of PTMs contributes to elucidating the role of modified proteins in the pathogenesis of RSA, as well as the design of more effective diagnostic/prognostic tools and more targeted treatments. Most reviews in the field of RSA have only focused on RNA epigenomics research. The present review reports the latest research developments of PTMs related to RSA, such as glycosylation, phosphorylation, Methylation, Acetylation, Ubiquitination, etc.
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Affiliation(s)
- Hanhong Lai
- Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Yi Yang
- Jinan University, Guangzhou, Guangdong 510632, People's Republic of China
| | - Jun Zhang
- Jinan University, Guangzhou, Guangdong 510632, People's Republic of China.
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2
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Gu L, Fu Y, Li X. Roles of post-translational modifications of UHRF1 in cancer. Epigenetics Chromatin 2024; 17:15. [PMID: 38725075 PMCID: PMC11080273 DOI: 10.1186/s13072-024-00540-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/02/2024] [Indexed: 05/12/2024] Open
Abstract
UHRF1 as a member of RING-finger type E3 ubiquitin ligases family, is an epigenetic regulator with five structural domains. It has been involved in the regulation of a series of biological functions, such as DNA replication, DNA methylation, and DNA damage repair. Additionally, aberrant overexpression of UHRF1 has been observed in over ten cancer types, indicating that UHRF1 is a typical oncogene. The overexpression of UHRF1 repressed the transcription of such tumor-suppressor genes as CDKN2A, BRCA1, and CDH1 through DNMT1-mediated DNA methylation. In addition to the upstream transcription factors regulating gene transcription, post-translational modifications (PTMs) also contribute to abnormal overexpression of UHRF1 in cancerous tissues. The types of PTM include phosphorylation, acetylation, methylationand ubiquitination, which regulate protein stability, histone methyltransferase activity, intracellular localization and the interaction with binding partners. Recently, several novel PTM types of UHRF1 have been reported, but the detailed mechanisms remain unclear. This comprehensive review summarized the types of UHRF1 PTMs, as well as their biological functions. A deep understanding of these crucial mechanisms of UHRF1 is pivotal for the development of novel UHRF1-targeted anti-cancer therapeutic strategies in the future.
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Affiliation(s)
- Lili Gu
- Key Laboratory of Clinical Precision Pharmacy of Guangdong Higher Education Institutes, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510699, Guangdong, China
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510699, Guangdong, China
- NMPA Key Laboratory for Technology Research and Evaluation of Pharmacovigilance, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, China
| | - Yongming Fu
- Key Laboratory of Clinical Precision Pharmacy of Guangdong Higher Education Institutes, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510699, Guangdong, China
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510699, Guangdong, China
- NMPA Key Laboratory for Technology Research and Evaluation of Pharmacovigilance, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, China
| | - Xiong Li
- Key Laboratory of Clinical Precision Pharmacy of Guangdong Higher Education Institutes, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510699, Guangdong, China.
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital, Guangdong Pharmaceutical University, Guangzhou, 510699, Guangdong, China.
- NMPA Key Laboratory for Technology Research and Evaluation of Pharmacovigilance, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, China.
- School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, 510006, Guangdong, China.
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3
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Yu T, Zhang C, Song W, Zhao X, Cheng Y, Liu J, Su J. Single-cell RNA-seq and single-cell bisulfite-sequencing reveal insights into yak preimplantation embryogenesis. J Biol Chem 2024; 300:105562. [PMID: 38097189 PMCID: PMC10821408 DOI: 10.1016/j.jbc.2023.105562] [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: 03/24/2023] [Revised: 11/17/2023] [Accepted: 12/03/2023] [Indexed: 01/13/2024] Open
Abstract
Extensive epigenetic reprogramming occurs during preimplantation embryonic development. However, the impact of DNA methylation in plateau yak preimplantation embryos and how epigenetic reprogramming contributes to transcriptional regulatory networks are unclear. In this study, we quantified gene expression and DNA methylation in oocytes and a series of yak embryos at different developmental stages and at single-cell resolution using single-cell bisulfite-sequencing and RNA-seq. We characterized embryonic genome activation and maternal transcript degradation and mapped epigenetic reprogramming events critical for embryonic development. Through cross-species transcriptome analysis, we identified 31 conserved maternal hub genes and 39 conserved zygotic hub genes, including SIN3A, PRC1, HDAC1/2, and HSPD1. Notably, by combining single-cell DNA methylation and transcriptome analysis, we identified 43 candidate methylation driver genes, such as AURKA, NUSAP1, CENPF, and PLK1, that may be associated with embryonic development. Finally, using functional approaches, we further determined that the epigenetic modifications associated with the histone deacetylases HDAC1/2 are essential for embryonic development and that the deubiquitinating enzyme USP7 may affect embryonic development by regulating DNA methylation. Our data represent an extensive resource on the transcriptional dynamics of yak embryonic development and DNA methylation remodeling, and provide new insights into strategies for the conservation of germplasm resources, as well as a better understanding of mammalian early embryonic development that can be applied to investigate the causes of early developmental disorders.
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Affiliation(s)
- Tong Yu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Chengtu Zhang
- Academician Zhang Yong Innovation Center, Xining Animal Disease Control Center, Xining, Qinghai, China
| | - Weijia Song
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Xinyi Zhao
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuyao Cheng
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jun Liu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.
| | - Jianmin Su
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.
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4
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Cai L, Liu B, Cao Y, Sun T, Li Y. Unveiling the molecular structure and role of RBBP4/7: implications for epigenetic regulation and cancer research. Front Mol Biosci 2023; 10:1276612. [PMID: 38028543 PMCID: PMC10679446 DOI: 10.3389/fmolb.2023.1276612] [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: 08/12/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
Retinoblastoma-binding protein (RBBP) family is a class of proteins that can interact with tumor suppressor retinoblastoma protein (pRb). RBBP4 and RBBP7 are the only pair of homologous proteins in this family, serving as scaffold proteins whose main function is to offer a platform to indirectly connect two proteins. This characteristic allows them to extensively participate in the binding of various proteins and epigenetic complexes, indirectly influencing the function of effector proteins. As a result, they are often highlighted in organism activities involving active epigenetic modifications, such as embryonic development and cancer activation. In this review, we summarize the structural characteristics of RBBP4/7, the complexes they are involved in, their roles in embryonic development and cancer, as well as potential future research directions, which we hope to inspire the field of epigenetic research in the future.
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Affiliation(s)
- Lize Cai
- The First Affiliated Hospital of Soochow University, Suzhou University, Suzhou, China
| | - Bin Liu
- Department of Neurosurgery, Qinghai Provincial People’s Hospital, Xining, China
| | - Yufei Cao
- The First Affiliated Hospital of Soochow University, Suzhou University, Suzhou, China
| | - Ting Sun
- The First Affiliated Hospital of Soochow University, Suzhou University, Suzhou, China
| | - Yanyan Li
- The First Affiliated Hospital of Soochow University, Suzhou University, Suzhou, China
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5
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Bozdemir N, Uysal F. Histone acetyltransferases and histone deacetyl transferases play crucial role during oogenesis and early embryo development. Genesis 2023; 61:e23518. [PMID: 37226850 DOI: 10.1002/dvg.23518] [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: 02/09/2023] [Revised: 04/29/2023] [Accepted: 05/02/2023] [Indexed: 05/26/2023]
Abstract
Dynamic epigenetic regulation is critical for proper oogenesis and early embryo development. During oogenesis, fully grown germinal vesicle oocytes develop to mature Metaphase II oocytes which are ready for fertilization. Fertilized oocyte proliferates mitotically until blastocyst formation and the process is called early embryo development. Throughout oogenesis and early embryo development, spatio-temporal gene expression takes place, and this dynamic gene expression is controlled with the aid of epigenetics. Epigenetic means that gene expression can be altered without changing DNA itself. Epigenome is regulated through DNA methylation and histone modifications. While DNA methylation generally ends up with repression of gene expression, histone modifications can result in expression or repression depending on type of modification, type of histone protein and its specific residue. One of the modifications is histone acetylation which generally ends up with gene expression. Histone acetylation occurs through the addition of acetyl group onto amino terminal of the core histone proteins by histone acetyltransferases (HATs). Contrarily, histone deacetylation is associated with repression of gene expression, and it is catalyzed by histone deacetylases (HDACs). This review article focuses on what is known about alterations in the expression of HATs and HDACs and emphasizes importance of HATs and HDACs during oogenesis and early embryo development.
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Affiliation(s)
- Nazlican Bozdemir
- Department of Histology and Embryology, Ankara Medipol University School of Medicine, Ankara, Turkey
| | - Fatma Uysal
- Department of Histology and Embryology, Ankara Medipol University School of Medicine, Ankara, Turkey
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6
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Wu X, Liu Y, Wang W, Crimmings K, Williams A, Mager J, Cui W. Early embryonic lethality of mice lacking POLD2. Mol Reprod Dev 2023; 90:98-108. [PMID: 36528861 PMCID: PMC9974775 DOI: 10.1002/mrd.23663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 11/09/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022]
Abstract
As a highly conserved DNA polymerase (Pol), Pol δ plays crucial roles in chromosomal DNA synthesis and various DNA repair pathways. However, the function of POLD2, the second small subunit of DNA Pol δ (p50 subunit), has not been characterized in vivo during mammalian development. Here, we report for the first time, the essential role of subunit POLD2 during early murine embryogenesis. Although Pold2 mutant mouse embryos exhibit normal morphology at E3.5 blastocyst stage, they cannot be recovered at gastrulation stages. Outgrowth assays reveal that mutant blastocysts cannot hatch from the zona pellucida, indicating impaired blastocyst function. Notably, these phenotypes can be recapitulated by small interfering RNA (siRNA)-mediated knockdown, which also exhibit slowed cellular proliferation together with skewed primitive endoderm and epiblast allocation during the second cell lineage specification. In summary, our study demonstrates that POLD2 is essential for the earliest steps of mammalian development, and the retarded proliferation and embryogenesis may also alter the following cell lineage specifications in the mouse blastocyst embryos.
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Affiliation(s)
- Xiaoqing Wu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, Anhui, China
| | - Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, Anhui, China
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Wenying Wang
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, Anhui, China
| | - Kate Crimmings
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Andrea Williams
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Jesse Mager
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
- Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts, Amherst, MA, USA
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7
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Hernaiz A, Sentre S, Betancor M, López-Pérez Ó, Salinas-Pena M, Zaragoza P, Badiola JJ, Toivonen JM, Bolea R, Martín-Burriel I. 5-Methylcytosine and 5-Hydroxymethylcytosine in Scrapie-Infected Sheep and Mouse Brain Tissues. Int J Mol Sci 2023; 24:ijms24021621. [PMID: 36675131 PMCID: PMC9864596 DOI: 10.3390/ijms24021621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023] Open
Abstract
Scrapie is a neurodegenerative disorder belonging to the group of transmissible spongiform encephalopathies or prion diseases, which are caused by an infectious isoform of the innocuous cellular prion protein (PrPC) known as PrPSc. DNA methylation, one of the most studied epigenetic mechanisms, is essential for the proper functioning of the central nervous system. Recent findings point to possible involvement of DNA methylation in the pathogenesis of prion diseases, but there is still a lack of knowledge about the behavior of this epigenetic mechanism in such neurodegenerative disorders. Here, we evaluated by immunohistochemistry the 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) levels in sheep and mouse brain tissues infected with scrapie. Expression analysis of different gene coding for epigenetic regulatory enzymes (DNMT1, DNMT3A, DNMT3B, HDAC1, HDAC2, TET1, and TET2) was also carried out. A decrease in 5mC levels was observed in scrapie-affected sheep and mice compared to healthy animals, whereas 5hmC displayed opposite patterns between the two models, demonstrating a decrease in 5hmC in scrapie-infected sheep and an increase in preclinical mice. 5mC correlated with prion-related lesions in mice and sheep, but 5hmC was associated with prion lesions only in sheep. Differences in the expression changes of epigenetic regulatory genes were found between both disease models, being differentially expressed Dnmt3b, Hdac1, and Tet1 in mice and HDAC2 in sheep. Our results support the evidence that DNA methylation in both forms, 5mC and 5hmC, and its associated epigenetic enzymes, take part in the neurodegenerative course of prion diseases.
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Affiliation(s)
- Adelaida Hernaiz
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
| | - Sara Sentre
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
| | - Marina Betancor
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes (CEETE), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
| | - Óscar López-Pérez
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
| | - Mónica Salinas-Pena
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
| | - Pilar Zaragoza
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto Carlos III, 28029 Madrid, Spain
| | - Juan José Badiola
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes (CEETE), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
| | - Janne Markus Toivonen
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto Carlos III, 28029 Madrid, Spain
| | - Rosa Bolea
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes (CEETE), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
| | - Inmaculada Martín-Burriel
- Laboratorio de Genética Bioquímica (LAGENBIO), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
- Centro de Encefalopatías y Enfermedades Transmisibles Emergentes (CEETE), Facultad de Veterinaria, Universidad de Zaragoza, IA2, IIS Aragón, 50013 Zaragoza, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Instituto Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-976-761662
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8
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Wang M, Chen Z, Zhang Y. CBP/p300 and HDAC activities regulate H3K27 acetylation dynamics and zygotic genome activation in mouse preimplantation embryos. EMBO J 2022; 41:e112012. [PMID: 36215692 PMCID: PMC9670200 DOI: 10.15252/embj.2022112012] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 01/13/2023] Open
Abstract
Epigenome reprogramming after fertilization enables transcriptionally quiescent maternal and paternal chromatin to acquire a permissive state for subsequent zygotic genome activation (ZGA). H3K27 acetylation (H3K27ac) is a well-established chromatin marker of active enhancers and promoters. However, reprogramming dynamics of H3K27ac during maternal-to-zygotic transition (MZT) in mammalian embryos are not well-studied. By profiling the allelic landscape of H3K27ac during mouse MZT, we show that H3K27ac undergoes three waves of rapid global transitions between oocyte stage and 2-cell stage. Notably, germinal vesicle oocyte and zygote chromatin are globally hyperacetylated, with noncanonical, broad H3K27ac domains that correlate with broad H3K4 trimethylation (H3K4me3) and open chromatin. H3K27ac marks genomic regions primed for activation including ZGA genes, retrotransposons, and active alleles of imprinted genes. We show that CBP/p300 and HDAC activities play important roles in regulating H3K27ac dynamics and are essential for preimplantation development. Specifically, CBP/p300 acetyltransferase broadly deposits H3K27ac in zygotes to induce the opening of condensed chromatin at putative enhancers and ensure proper ZGA. On the contrary, HDACs revert broad H3K27ac domains to canonical domains and safeguard ZGA by preventing premature expression of developmental genes. In conclusion, coordinated activities of CBP/p300 and HDACs during mouse MZT are essential for ZGA and preimplantation development.
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Affiliation(s)
- Meng Wang
- Howard Hughes Medical InstituteBoston Children's HospitalBostonMAUSA,Program in Cellular and Molecular MedicineBoston Children's HospitalBostonMAUSA,Division of Hematology/Oncology, Department of PediatricsBoston Children's HospitalBostonMAUSA
| | - Zhiyuan Chen
- Howard Hughes Medical InstituteBoston Children's HospitalBostonMAUSA,Program in Cellular and Molecular MedicineBoston Children's HospitalBostonMAUSA,Division of Hematology/Oncology, Department of PediatricsBoston Children's HospitalBostonMAUSA
| | - Yi Zhang
- Howard Hughes Medical InstituteBoston Children's HospitalBostonMAUSA,Program in Cellular and Molecular MedicineBoston Children's HospitalBostonMAUSA,Division of Hematology/Oncology, Department of PediatricsBoston Children's HospitalBostonMAUSA,Department of GeneticsHarvard Medical SchoolBostonMAUSA,Harvard Stem Cell InstituteBostonMAUSA
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9
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Dvoran M, Nemcova L, Kalous J. An Interplay between Epigenetics and Translation in Oocyte Maturation and Embryo Development: Assisted Reproduction Perspective. Biomedicines 2022; 10:biomedicines10071689. [PMID: 35884994 PMCID: PMC9313063 DOI: 10.3390/biomedicines10071689] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/25/2022] [Accepted: 06/28/2022] [Indexed: 12/11/2022] Open
Abstract
Germ cell quality is a key prerequisite for successful fertilization and early embryo development. The quality is determined by the fine regulation of transcriptomic and proteomic profiles, which are prone to alteration by assisted reproduction technology (ART)-introduced in vitro methods. Gaining evidence shows the ART can influence preset epigenetic modifications within cultured oocytes or early embryos and affect their developmental competency. The aim of this review is to describe ART-determined epigenetic changes related to the oogenesis, early embryogenesis, and further in utero development. We confront the latest epigenetic, related epitranscriptomic, and translational regulation findings with the processes of meiotic maturation, fertilization, and early embryogenesis that impact the developmental competency and embryo quality. Post-ART embryo transfer, in utero implantation, and development (placentation, fetal development) are influenced by environmental and lifestyle factors. The review is emphasizing their epigenetic and ART contribution to fetal development. An epigenetic parallel among mouse, porcine, and bovine animal models and human ART is drawn to illustrate possible future mechanisms of infertility management as well as increase the awareness of the underlying mechanisms governing oocyte and embryo developmental complexity under ART conditions.
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10
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Price JD, Lindtner S, Ypsilanti A, Binyameen F, Johnson JR, Newton BW, Krogan NJ, Rubenstein JLR. DLX1 and the NuRD complex cooperate in enhancer decommissioning and transcriptional repression. Development 2022; 149:dev199508. [PMID: 35695185 PMCID: PMC9245191 DOI: 10.1242/dev.199508] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 03/17/2022] [Indexed: 09/27/2023]
Abstract
In the developing subpallium, the fate decision between neurons and glia is driven by expression of Dlx1/2 or Olig1/2, respectively, two sets of transcription factors with a mutually repressive relationship. The mechanism by which Dlx1/2 repress progenitor and oligodendrocyte fate, while promoting transcription of genes needed for differentiation, is not fully understood. We identified a motif within DLX1 that binds RBBP4, a NuRD complex subunit. ChIP-seq studies of genomic occupancy of DLX1 and six different members of the NuRD complex show that DLX1 and NuRD colocalize to putative regulatory elements enriched near other transcription factor genes. Loss of Dlx1/2 leads to dysregulation of genome accessibility at putative regulatory elements near genes repressed by Dlx1/2, including Olig2. Consequently, heterozygosity of Dlx1/2 and Rbbp4 leads to an increase in the production of OLIG2+ cells. These findings highlight the importance of the interplay between transcription factors and chromatin remodelers in regulating cell-fate decisions.
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Affiliation(s)
- James D. Price
- Department of Psychiatry, Langley Porter Psychiatric Institute, UCSF Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA
- Developmental and Stem Cell Biology Graduate Program, University of California San Francisco, San Francisco, CA 94143, USA
| | - Susan Lindtner
- Department of Psychiatry, Langley Porter Psychiatric Institute, UCSF Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA
| | - Athena Ypsilanti
- Department of Psychiatry, Langley Porter Psychiatric Institute, UCSF Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA
| | - Fadya Binyameen
- Department of Psychiatry, Langley Porter Psychiatric Institute, UCSF Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA
| | - Jeffrey R. Johnson
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA 94158, USA
- Gladstone Institute of Data Science and Biosciences, J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA 94143, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Billy W. Newton
- Gladstone Institute of Data Science and Biosciences, J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA 94143, USA
| | - Nevan J. Krogan
- Quantitative Biosciences Institute, University of California San Francisco, San Francisco, CA 94158, USA
- Gladstone Institute of Data Science and Biosciences, J. David Gladstone Institutes, San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California San Francisco, San Francisco, CA 94143, USA
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - John L. R. Rubenstein
- Department of Psychiatry, Langley Porter Psychiatric Institute, UCSF Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, USA
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11
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Dang Y, Li S, Zhao P, Xiao L, Wang L, Shi Y, Luo L, Wang S, Wang H, Zhang K. The lysine deacetylase activity of histone deacetylases 1 and 2 is required to safeguard zygotic genome activation in mice and cattle. Development 2022; 149:275603. [PMID: 35575026 DOI: 10.1242/dev.200854] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/03/2022] [Indexed: 12/15/2022]
Abstract
The genome is transcriptionally inert at fertilization and must be activated through a remarkable developmental process called zygotic genome activation (ZGA). Epigenetic reprogramming contributes significantly to the dynamic gene expression during ZGA; however, the mechanism has yet to be resolved. Here, we find histone deacetylases 1 and 2 (HDAC1/2) can regulate ZGA through lysine deacetylase activity. Notably, in mouse embryos, overexpression of a HDAC1/2 dominant-negative mutant leads to developmental arrest at the two-cell stage. RNA-seq reveals that 64% of downregulated genes are ZGA genes and 49% of upregulated genes are developmental genes. Inhibition of the deacetylase activity of HDAC1/2 causes a failure of histone deacetylation at multiple sites, including H4K5, H4K16, H3K14, H3K18 and H3K27. ChIP-seq analysis exhibits an increase and decrease of H3K27ac enrichment at promoters of up- and downregulated genes, respectively. Moreover, HDAC1 mutants prohibit the removal of H3K4me3 by impeding expression of Kdm5 genes. Importantly, the developmental block can be greatly rescued by Kdm5b injection and by partially correcting the expression of the majority of dysregulated genes. Similar functional significance of HDAC1/2 is conserved in bovine embryos. Overall, we propose that HDAC1/2 are indispensable for ZGA by creating correct transcriptional repressive and active states in mouse and bovine embryos.
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Affiliation(s)
- Yanna Dang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Shuang Li
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Panpan Zhao
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lieying Xiao
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lefeng Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China.,Department of Veterinary Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yan Shi
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lei Luo
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Shaohua Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Huanan Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China.,Department of Veterinary Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, and Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310058, China
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12
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Zhang Y, Yang Y, Qiao P, Wang X, Yu R, Sun H, Xing X, Zhang Y, Su J. CHAF1b, chromatin assembly factor-1 subunit b, is essential for mouse preimplantation embryos. Int J Biol Macromol 2022; 195:547-557. [PMID: 34906611 DOI: 10.1016/j.ijbiomac.2021.11.181] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 11/15/2022]
Abstract
Chromatin assembly factor-1, subunit b (CHAF1b), the p60 subunit of the chromatin-assembly factor-1 (CAF-1) complex, is an evolutionarily conserved protein that has been implicated in various biological processes. Although a variety of functions have been attributed to CHAF1b, its function in preimplantation embryos remains obscure. In this study, we showed that CHAF1b knockdown did not affect the blastocyst rate, but resulted in a low blastocyst hatching rate, outgrowth failure in vitro, and embryonic lethality after implantation in vivo. Notably, CHAF1b depletion increased apoptosis and caused down-regulated expression of key regulators of cell fate specification, including Oct4, Cdx2, Sox2, and Nanog. Further analysis revealed that CHAF1b mediated the replacement of H3.3 with H3.1/3.2, which was associated with decreased repressive histone marks (H3K9me2/3 and H3K27me2/3) and increased active histone marks (H3K4me2/3). Moreover, RNA-sequencing analysis revealed that CHAF1b depletion resulted in the differential expression of 1508 genes, including epigenetic modifications genes, multiple lineage-specific genes, and several genes encoding apoptosis proteins. In addition, assay for transposase-accessible chromatin-sequencing analysis demonstrated that silencing CHAF1b altered the chromatin accessibility of lineage-specific genes and epigenetic modifications genes. Taken together, these data imply that CHAF1b plays significant roles in preimplantation embryos, probably by regulating epigenetic modifications and lineage specification.
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Affiliation(s)
- Yingbing Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Ying Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Peipei Qiao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Xiyue Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Ruiluan Yu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Hongzheng Sun
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Xupeng Xing
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China.
| | - Jianmin Su
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China.
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13
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Xiao L, Dang Y, Hu B, Luo L, Zhao P, Wang S, Zhang K. Overlapping functions of RBBP4 and RBBP7 in regulating cell proliferation and histone H3.3 deposition during mouse preimplantation development. Epigenetics 2021; 17:1205-1218. [PMID: 34709113 DOI: 10.1080/15592294.2021.1999006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Preimplantation development is critical for reproductive successes in mammals. Thus, it is important to understand how preimplantation embryogenesis is regulated. As a key event of preimplantation development, epigenetic reprogramming has been widely studied, yet how epigenetic complexes regulate preimplantation development remains largely unknown. Retinoblastoma binding protein 4 (RBBP4) and 7 (RBBP7) are integral components of epigenetic complexes including SIN3A, NuRD, and CoREST. Here, we demonstrate that double knockdown of Rbbp4 and 7, but not individually, causes embryonic lethality during the morula-to-blastocyst transition. Mechanistically, depletion of RBBP4 and 7 results in dysregulation of genes related to cell cycle, lineage development, and regulation of transcription, which is accompanied by cell cycle block, disrupted lineage specification and chromatin structure. Interestingly, RBBP4/7 depletion leads to a dramatic increase in H3.3 and H3K27ac abundance during morula-to-blastocyst transition. ChIP-seq analysis in early embryos and embryonic stem cells reveals enrichment of H3.3 at the promoter regions of RBBP4/7 target genes. In summary, our studies demonstrate the compensatory role of RBBP4/7 and reveal its potential mechanisms in preimplantation development.Summary sentence:RBBP4 and RBBP7 play a compensatory role in regulating cell proliferation, apoptosis, and histone H3.3 deposition during preimplantation development.
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Affiliation(s)
- Lieying Xiao
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yanna Dang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Bingjie Hu
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lei Luo
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Panpan Zhao
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Shaohua Wang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, College of Animal Sciences, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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14
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Miao X, Sun T, Barletta H, Mager J, Cui W. Loss of RBBP4 results in defective inner cell mass, severe apoptosis, hyperacetylated histones and preimplantation lethality in mice†. Biol Reprod 2021; 103:13-23. [PMID: 32285100 DOI: 10.1093/biolre/ioaa046] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/13/2020] [Accepted: 04/09/2020] [Indexed: 01/06/2023] Open
Abstract
Retinoblastoma-binding protein 4 (RBBP4) (also known as chromatin-remodeling factor RBAP48) is an evolutionarily conserved protein that has been involved in various biological processes. Although a variety of functions have been attributed to RBBP4 in vitro, mammalian RBBP4 has not been studied in vivo. Here we report that RBBP4 is essential during early mouse embryo development. Although Rbbp4 mutant embryos exhibit normal morphology at E3.5 blastocyst stage, they cannot be recovered at E7.5 early post-gastrulation stage, suggesting an implantation failure. Outgrowth (OG) assays reveal that mutant blastocysts cannot hatch from the zona or can hatch but then arrest without further development. We find that while there is no change in proliferation or levels of reactive oxygen species, both apoptosis and histone acetylation are significantly increased in mutant blastocysts. Analysis of lineage specification reveals that while the trophoblast is properly specified, both epiblast and primitive endoderm lineages are compromised with severe reductions in cell number and/or specification. In summary, these findings demonstrate the essential role of RBBP4 during early mammalian embryogenesis.
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Affiliation(s)
- Xiaosu Miao
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Tieqi Sun
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Holly Barletta
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Jesse Mager
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA.,Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts, Amherst, MA, USA
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15
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Zhang W, Li S, Li K, Li LI, Yin P, Tong G. The role of protein arginine methyltransferase 7 in human developmentally arrested embryos cultured in vitro. Acta Biochim Biophys Sin (Shanghai) 2021; 53:925-932. [PMID: 34041522 DOI: 10.1093/abbs/gmab068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Indexed: 12/12/2022] Open
Abstract
Human embryos of in vitro fertilization (IVF) are often susceptible to developmental arrest, which greatly reduces the efficiency of IVF treatment. In recent years, it has been found that protein arginine methyltransferase 7 (PRMT7) plays an important role in the process of early embryonic development. However, not much is known about the relationship between PRMT7 and developmentally arrested embryos. The role of PRMT7 in developmentally arrested embryos was thus investigated in this study. Discarded human embryos from IVF were collected for experimental materials. Quantitative real-time polymerase chain reaction (qRT-PCR) and confocal analyses were used to identify PRMT7 mRNA and protein levels in early embryos at different developmental stages, as well as changes in the methylation levels of H4R3me2s. Additionally, PRMT7 was knocked down in the developmentally arrested embryos to observe the further development of these embryos. Our results demonstrated that PRMT7 mRNA and protein levels in arrested embryos were significantly increased compared with those in control embryos; meanwhile, the methylation levels of H4R3me2s in arrested embryos were also increased significantly. Knockdown of PRMT7 could rescue partially developmentally arrested embryos, and even individual developmentally arrested embryos could develop into blastocysts. In conclusion, over-expression of PRMT7 disrupts the early embryo development process, leading to early embryos developmental arrest, but these developmentally arrested defects could be partially rescued by knockdown of the PRMT7 protein.
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Affiliation(s)
- Wuwen Zhang
- Reproductive Medicine Center, Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Shifeng Li
- Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai 200031, China
| | - Kai Li
- Reproductive Medicine Center, Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - L i Li
- Reproductive Medicine Center, Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ping Yin
- Reproductive Medicine Center, Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guoqing Tong
- Reproductive Medicine Center, Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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16
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Paonessa M, Borini A, Coticchio G. Genetic causes of preimplantation embryo developmental failure. Mol Reprod Dev 2021; 88:338-348. [PMID: 33843124 DOI: 10.1002/mrd.23471] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/27/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022]
Abstract
Embryo development requires orchestrated events, finely regulated at the molecular and cellular level by mechanisms which are progressively emerging from animal studies. With progress in genetic technologies-such as genome editing and single-cell RNA analysis-we can now assess embryo gene expression with increased precision and gain new insights into complex processes until recently difficult to explore. Multiple genes and regulative pathways have been identified for each developmental stage. We have learned that embryos with undisturbed and timely gene expression have higher chances of successful development. For example, selected genes are highly expressed during the first stages, being involved in cell adhesion, cell cycle, and regulation of transcription; other genes are instead crucial for lineage specification and therefore expressed at later stages. Due to ethical constraints, studies on human embryos remain scarce, mainly descriptive, and unable to provide functional evidence. This highlights the importance of animal studies as basic knowledge to test and appraise in a clinical context. In this review, we report on preimplantation development with a focus on genes whose impairment leads to developmental arrest. Preconceptional genetic screening could identify loss-of-function mutations of these genes; thereby, novel biomarkers of embryo quality could be adopted to improve diagnosis and treatment of infertility.
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Affiliation(s)
- Mariagrazia Paonessa
- 9.Baby, Family and Fertility Center, Bologna, Italy.,Casa di Cura Candela Spa, Palermo, Italy
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17
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Luo L, Dang Y, Shi Y, Zhao P, Zhang Y, Zhang K. SIN3A Regulates Porcine Early Embryonic Development by Modulating CCNB1 Expression. Front Cell Dev Biol 2021; 9:604232. [PMID: 33692994 PMCID: PMC7937639 DOI: 10.3389/fcell.2021.604232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/20/2021] [Indexed: 11/13/2022] Open
Abstract
SIN3A is the central scaffold protein of the SIN3/histone deacetylase (HDAC) transcriptional repressor complex. SIN3A participates in the mouse preimplantation development by fine-tuning HDAC1 expression. However, it remains unresolved if this functional significance of SIN3A was conserved in other mammals. Herein, RNA-seq results show a large amount of SIN3A mRNA is present in oocytes and early embryos prior to embryonic genome activation and a low amount thereafter, suggesting a maternal origin of SIN3A in pigs, cattle, mice, and humans. Interestingly, immunofluorescence data show that SIN3A protein level peaks at four-cell stage in pigs compared with morula stage in cattle. SIN3A depletion in early embryos causes a developmental arrest at two-cell stage in pigs but does not affect bovine early embryonic development. In contrast with mouse data, SIN3A depletion results in only a slight decrease and even no difference in HDAC1 expression in porcine and bovine early embryos, respectively. In addition, HDAC1 knockdown does not cause two-cell block but leads to a reduced blastocyst rate. By using unbiased RNA-seq approach, we found that Cyclin B1 (CCNB1) transcript level is dramatically reduced. Moreover, CCNB1 knockdown results in a similar phenotype as SIN3A depletion. Injection of exogenous CCNB1 mRNA into SIN3A-depleted embryos could partly rescue embryonic development to pass two-cell stage. In conclusion, our results indicate SIN3A plays an essential role in porcine early embryonic development, which probably involves the regulation of CCNB1 expression.
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Affiliation(s)
- Lei Luo
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China.,Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yanna Dang
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yan Shi
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Panpan Zhao
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yunhai Zhang
- Anhui Provincial Laboratory of Local Livestock and Poultry Genetical Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Kun Zhang
- Laboratory of Mammalian Molecular Embryology, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, China
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18
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Wang X, Li Z, Zhu Y, Yan J, Liu H, Huang G, Li W. Maternal folic acid impacts DNA methylation profile in male rat offspring implicated in neurodevelopment and learning/memory abilities. GENES AND NUTRITION 2021; 16:1. [PMID: 33430764 PMCID: PMC7802276 DOI: 10.1186/s12263-020-00681-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 12/22/2020] [Indexed: 12/31/2022]
Abstract
Background Periconceptional folic acid (FA) supplementation not only reduces the incidence of neural tube defects, but also improves cognitive performances in offspring. However, the genes or pathways that are epigenetically regulated by FA in neurodevelopment were rarely reported. Methods To elucidate the underlying mechanism, the effect of FA on the methylation profiles in brain tissue of male rat offspring was assessed by methylated DNA immunoprecipitation chip. Differentially methylated genes (DMGs) and gene network analysis were identified using DAVID and KEGG pathway analysis. Results Compared with the folate-normal diet group, 1939 DMGs were identified in the folate-deficient diet group, and 1498 DMGs were identified in the folate-supplemented diet group, among which 298 DMGs were overlapped. The pathways associated with neurodevelopment and learning/memory abilities were differentially methylated in response to maternal FA intake during pregnancy, and there were some identical and distinctive potential mechanisms under FA deficiency or FA-supplemented conditions. Conclusions In conclusion, genes and pathways associated with neurodevelopment and learning/memory abilities were differentially methylated in male rat offspring in response to maternal FA deficiency or supplementation during pregnancy.
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Affiliation(s)
- Xinyan Wang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Zhenshu Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Yun Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Jing Yan
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, 300070, China.,Department of Social Medicine and Health Administration, School of Public Health, Tianjin Medical University, Tianjin, 300070, China
| | - Huan Liu
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China.,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin, 300070, China. .,Tianjin Key Laboratory of Environment, Nutrition and Public Health, Center for International Collaborative Research on Environment, Nutrition and Public Health, Tianjin, 300070, China.
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19
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Su J, Miao X, Archambault D, Mager J, Cui W. ZC3H4-a novel Cys-Cys-Cys-His-type zinc finger protein-is essential for early embryogenesis in mice†. Biol Reprod 2020; 104:325-335. [PMID: 33246328 DOI: 10.1093/biolre/ioaa215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 10/10/2020] [Accepted: 11/25/2020] [Indexed: 02/07/2023] Open
Abstract
Zinc finger domains of the Cys-Cys-Cys-His (CCCH) class are evolutionarily conserved proteins that bind nucleic acids and are involved in various biological processes. Nearly 60 CCCH-type zinc finger proteins have been identified in humans and mice, most have not been functionally characterized. Here, we provide the first in vivo functional characterization of ZC3H4-a novel CCCH-type zinc finger protein. Our results show that although Zc3h4 mutant embryos exhibit normal morphology at E3.5 blastocyst stage, they cannot be recovered at E7.5 early post-gastrulation stage, suggesting implantation failure. Outgrowth assays reveal that mutant blastocysts either fail to hatch from the zona pellucida, or can hatch but do not form a typical inner cell mass colony, the source of embryonic stem cells (ESCs). Although there is no change in levels of reactive oxygen species, Zc3h4 mutants display severe DNA breaks and reduced cell proliferation. Analysis of lineage specification reveals that both epiblast and primitive endoderm lineages are compromised with severe reductions in cell number and/or specification in the mutant blastocysts. In summary, these findings demonstrate the essential role of ZC3H4 during early mammalian embryogenesis.
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Affiliation(s)
- Jianmin Su
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA.,Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xiaosu Miao
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Danielle Archambault
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Jesse Mager
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA.,Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts, Amherst, MA, USA
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20
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Li H, Song M, Yang W, Cao P, Zheng L, Zuo Y. A Comparative Analysis of Single-Cell Transcriptome Identifies Reprogramming Driver Factors for Efficiency Improvement. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 19:1053-1064. [PMID: 32045876 PMCID: PMC7015826 DOI: 10.1016/j.omtn.2019.12.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/23/2019] [Accepted: 12/26/2019] [Indexed: 12/11/2022]
Abstract
Terminally differentiated somatic cells can be reprogrammed into a totipotent state through somatic cell nuclear transfer (SCNT). The incomplete reprogramming is the major reason for developmental arrest of SCNT embryos at early stages. In our studies, we found that pathways for autophagy, endocytosis, and apoptosis were incompletely activated in nuclear transfer (NT) 2-cell arrest embryos, whereas extensively inhibited pathways for stem cell pluripotency maintenance, DNA repair, cell cycle, and autophagy may result in NT 4-cell embryos arrest. As for NT normal embryos, a significant shift in expression of developmental transcription factors (TFs) Id1, Pou6f1, Cited1, and Zscan4c was observed. Compared with pluripotent gene Ascl2 being activated only in NT 2-cell, Nanog, Dppa2, and Sall4 had major expression waves in normal development of both NT 2-cell and 4-cell embryos. Additionally, Kdm4b/4d and Kdm5b had been confirmed as key markers in NT 2-cell and 4-cell embryos, respectively. Histone acetylases Kat8, Elp6, and Eid1 were co-activated in NT 2-cell and 4-cell embryos to facilitate normal development. Gadd45a as a key driver functions with Tet1 and Tet2 to improve the efficiency of NT reprogramming. Taken together, our findings provided an important theoretical basis for elucidating the potential molecular mechanisms and identified reprogramming driver factor to improve the efficiency of SCNT reprogramming.
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Affiliation(s)
- Hanshuang Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Mingmin Song
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Wuritu Yang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Pengbo Cao
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Lei Zheng
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Yongchun Zuo
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China.
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21
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Genomic Balance: Two Genomes Establishing Synchrony to Modulate Cellular Fate and Function. Cells 2019; 8:cells8111306. [PMID: 31652817 PMCID: PMC6912345 DOI: 10.3390/cells8111306] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 10/17/2019] [Accepted: 10/22/2019] [Indexed: 01/21/2023] Open
Abstract
It is becoming increasingly apparent that cells require cooperation between the nuclear and mitochondrial genomes to promote effective function. However, it was long thought that the mitochondrial genome was under the strict control of the nuclear genome and the mitochondrial genome had little influence on cell fate unless it was extensively mutated, as in the case of the mitochondrial DNA diseases. However, as our understanding of the roles that epigenetic regulators, including DNA methylation, and metabolism play in cell fate and function, the role of the mitochondrial genome appears to have a greater influence than previously thought. In this review, I draw on examples from tumorigenesis, stem cells, and oocyte pre- and post-fertilisation events to discuss how modulating one genome affects the other and that this results in a compromise to produce functional mature cells. I propose that, during development, both of the genomes interact with each other through intermediaries to establish genomic balance and that establishing genomic balance is a key facet in determining cell fate and viability.
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