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Qi J, Xia C, Zhang Y, Ding R, Zhang Y, Cao W, Duan C, Yao Z, Qin H, Ye Y, Qu P, Li Y, Liu E. Impact of high-fat diet on ovarian epigenetics: Insights from altered intestinal butyric acid levels. Heliyon 2024; 10:e33170. [PMID: 39021996 PMCID: PMC11252756 DOI: 10.1016/j.heliyon.2024.e33170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 06/11/2024] [Accepted: 06/14/2024] [Indexed: 07/20/2024] Open
Abstract
Objective To investigate the effects of a high-fat diet (HFD) on the gut bacterium Roseburia intestinalis and butyric acid levels, and to assess their impact on ovarian function and epigenetic markers in mice. Methods A total of 20 female ICR mice aged 4 weeks were randomly assigned to two groups and fed either a control diet (CD) or an HFD for 36 weeks. Post-intervention, ileal contents were analyzed for the quantification of butyric acid using ELISA, while feces were obtained for Roseburia intestinalis expression assessment via qPCR. Histological evaluations of intestinal and ovarian tissues included H&E and Alcian Blue-Periodic Acid Schiff (AB-PAS) staining, alongside immunohistochemical analysis for F4/80, and immunofluorescent detection of Occludin, ZO-1, 5 mC, and H3K36me3. Ovarian health was assessed through follicle counts and morphological evaluations. Statistical analyses were performed using GraphPad Prism 8.0, with P < 0.05 considered significant. Results After 36 weeks, the HFD group showed significantly higher body weight compared to the CD group (P < 0.01). The HFD led to a decrease in Roseburia intestinalis and butyric acid levels, a reduction in intestinal goblet cells, and an increase in intestinal inflammation. Histological analyses revealed impaired ovarian follicular development and enhanced inflammation in the HFD mice, with immunofluorescent staining showing downregulation of the ovarian epigenetic markers 5 mC and H3K36me3. Conclusion Our study demonstrates that long-term HFD negatively impacts ovarian function and epigenetic regulation. We found decreased levels of the gut bacterium Roseburia intestinalis and its metabolite, butyric acid, which contribute to these adverse effects. Additionally, the associated intestinal inflammation and compromised mucosal barrier may contribute to these adverse outcomes on female reproductive health.
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Affiliation(s)
- Jia Qi
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Congcong Xia
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Yulin Zhang
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Ruike Ding
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Yanru Zhang
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Wenbin Cao
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Chenjing Duan
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Zijing Yao
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Hongyu Qin
- Central Laboratory, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Yun Ye
- Central Laboratory, The First Affiliated Hospital of Xi'an Medical University, Xi'an, China
| | - Pengxiang Qu
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
| | - Yandong Li
- Xi'an International Medical Center Hospital, Xi'an, China
| | - Enqi Liu
- Laboratory Animal Center, Xi'an Jiaotong University Health Science Centre, Xi'an, China
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Ban M, Feng W, Hou M, Zhang Z, Cui L. IVF exposure induced intergenerational effects on metabolic phenotype in mice. Reprod Biomed Online 2024; 49:103992. [PMID: 38889592 DOI: 10.1016/j.rbmo.2024.103992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/20/2024] [Accepted: 04/09/2024] [Indexed: 06/20/2024]
Abstract
RESEARCH QUESTION What is the potential transmission of metabolic phenotype from IVF offspring to the subsequent generation? DESIGN An IVF mouse model was established. The F1 generation mice were produced though IVF or natural mating and the F2 generation was obtained through the mating of F1 generation males with normal females. Their metabolic phenotype, including systemic and hepatic glucolipid metabolism, was examined. RESULTS It was found that IVF F1 males exhibited metabolic changes. Compared with the control group, the IVF F1 generation showed increased body weight, elevated fasting glucose and insulin, and increased serum triglyceride concentrations. IVF F1 mice also showed an increased expression of hepatic lipogenesis and autophagy genes. Moreover, IVF F1 males transmitted some metabolic changes to their own male progeny (IVF F2) in the absence of a dietary challenge. IVF F2 mice had increased peri-epididymal and subcutaneous fat and decreased insulin sensitivity. Under the 'second hit' of a high-fat diet, IVF F2 mice further showed increased hepatic lipid deposition with unaltered autophagy levels. CONCLUSION This research demonstrates the impact of IVF on hepatic glucose-lipid metabolism in two successive generations of offspring, highlighting the need for additional investigation. Enhanced understanding of the mechanisms underlying the transmission of multigenerational effects induced by IVF could potentially lead to the advancement of therapeutic interventions for individuals experiencing infertility.
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Affiliation(s)
- Miaomiao Ban
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Shandong, China.; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Shandong, China.; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Shandong, China.; Shandong Technology Innovation Center for Reproductive Health, Shandong, China.; Shandong Provincial Clinical Research Center for Reproductive Health, Shandong, China.; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No. 2021RU001), Shandong, China
| | - Wanbing Feng
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Shandong, China.; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Shandong, China.; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Shandong, China.; Shandong Technology Innovation Center for Reproductive Health, Shandong, China.; Shandong Provincial Clinical Research Center for Reproductive Health, Shandong, China.; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No. 2021RU001), Shandong, China
| | - Min Hou
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Shandong, China.; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Shandong, China.; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Shandong, China.; Shandong Technology Innovation Center for Reproductive Health, Shandong, China.; Shandong Provincial Clinical Research Center for Reproductive Health, Shandong, China.; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No. 2021RU001), Shandong, China
| | - Zhirong Zhang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, Shandong University, Shandong, China.; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Shandong, China.; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Shandong, China.; Shandong Technology Innovation Center for Reproductive Health, Shandong, China.; Shandong Provincial Clinical Research Center for Reproductive Health, Shandong, China.; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No. 2021RU001), Shandong, China
| | - Linlin Cui
- National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Shandong, China.; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Shandong, China.; Shandong Technology Innovation Center for Reproductive Health, Shandong, China.; Shandong Provincial Clinical Research Center for Reproductive Health, Shandong, China.; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No. 2021RU001), Shandong, China.; State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Reproductive Medicine, Institute of Women, Children and Reproductive Health, The Second Hospital, Shandong University, Shandong, China..
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Lee BK, Salamah J, Cheeran E, Adu-Gyamfi EA. Dynamic and distinct histone modifications facilitate human trophoblast lineage differentiation. Sci Rep 2024; 14:4505. [PMID: 38402275 PMCID: PMC10894295 DOI: 10.1038/s41598-024-55189-0] [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: 12/08/2023] [Accepted: 02/21/2024] [Indexed: 02/26/2024] Open
Abstract
The placenta serves as an essential organ for fetal growth throughout pregnancy. Histone modification is a crucial regulatory mechanism involved in numerous biological processes and development. Nevertheless, there remains a significant gap in our understanding regarding the epigenetic regulations that influence trophoblast lineage differentiation, a fundamental aspect of placental development. Here, through comprehensive mapping of H3K4me3, H3K27me3, H3K9me3, and H3K27ac loci during the differentiation of trophoblast stem cells (TSCs) into syncytiotrophoblasts (STs) and extravillous trophoblasts (EVTs), we reveal dynamic reconfiguration in H3K4me3 and H3K27ac patterns that establish an epigenetic landscape conducive to proper trophoblast lineage differentiation. We observe that broad H3K4me3 domains are associated with trophoblast lineage-specific gene expression. Unlike embryonic stem cells, TSCs lack robust bivalent domains. Notably, the repression of ST- and EVT-active genes in TSCs is primarily attributed to the weak H3K4me3 signal rather than bivalent domains. We also unveil the inactivation of TSC enhancers precedes the activation of ST enhancers during ST formation. Our results provide a comprehensive global map of diverse histone modifications, elucidating the dynamic histone modifications during trophoblast lineage differentiation.
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Affiliation(s)
- Bum-Kyu Lee
- Department of Biomedical Sciences, Cancer Research Center, University at Albany, State University of New York, Rensselaer, NY, 12144, USA.
| | - Joudi Salamah
- Department of Biomedical Sciences, Cancer Research Center, University at Albany, State University of New York, Rensselaer, NY, 12144, USA
| | - Elisha Cheeran
- Department of Biomedical Sciences, Cancer Research Center, University at Albany, State University of New York, Rensselaer, NY, 12144, USA
| | - Enoch Appiah Adu-Gyamfi
- Department of Biomedical Sciences, Cancer Research Center, University at Albany, State University of New York, Rensselaer, NY, 12144, USA
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Terzi Cizmecioglu N. Roles and Regulation of H3K4 Methylation During Mammalian Early Embryogenesis and Embryonic Stem Cell Differentiation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024. [PMID: 38231346 DOI: 10.1007/5584_2023_794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
From generation of germ cells, fertilization, and throughout early mammalian embryonic development, the chromatin undergoes significant alterations to enable precise regulation of gene expression and genome use. Methylation of histone 3 lysine 4 (H3K4) correlates with active regions of the genome, and it has emerged as a dynamic mark throughout this timeline. The pattern and the level of H3K4 methylation are regulated by methyltransferases and demethylases. These enzymes, as well as their protein partners, play important roles in early embryonic development and show phenotypes in embryonic stem cell self-renewal and differentiation. The various roles of H3K4 methylation are interpreted by dedicated chromatin reader proteins, linking this modification to broader molecular and cellular phenotypes. In this review, we discuss the regulation of different levels of H3K4 methylation, their distinct accumulation pattern, and downstream molecular roles with an early embryogenesis perspective.
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Zeng Y, Hoshino Y, Susami K, Honda S, Minami N, Ikeda S. Evaluating histone modification analysis of individual preimplantation embryos. BMC Genomics 2024; 25:75. [PMID: 38238676 PMCID: PMC10795292 DOI: 10.1186/s12864-024-09984-8] [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: 08/15/2023] [Accepted: 01/06/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND We previously reported a modification of the CUT&Tag method (NTU-CAT) that allows genome-wide histone modification analysis in individual preimplantation embryos. In the present study, NTU-CAT was further simplified by taking advantage of the Well-of-the-Well (WOW) system, which enables the processing of multiple embryos in a shorter time with less reagent and cell loss during the procedure (WOW-CUT&Tag, WOW-CAT). RESULTS WOW-CAT allowed histone modification profiling from not only a single blastocyst but also from a portion of it. WOW-CAT generated similar H3K4me3 profiles as NTU-CAT, but they were closer to the profiles produced by chromatin immunoprecipitation-sequencing, such as a valley-like trend and relatively lower false positive rates, indicating that WOW-CAT may attenuate the bias of Tn5 transposase to cut open chromatin regions. Simultaneous WOW-CAT of two halves of single blastocysts was conducted to analyze two different histone modifications (H3K4me3 and H3K27ac) within the same embryo. Furthermore, trophectoderm cells were biopsied and subjected to WOW-CAT in anticipation of preimplantation diagnosis of histone modifications. WOW-CAT allowed the monitoring of epigenetic modifications in the main body of the embryo. For example, analysis of H3K4me3 modifications of XIST and DDX3Y in trophectoderm biopsies could be used to sex embryos in combination with quantitative PCR, but without the need for deep sequencing. CONCLUSIONS These results suggest the applicability of WOW-CAT for flexible epigenetic analysis of individual embryos in preimplantation epigenetic diagnosis.
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Affiliation(s)
- Yiren Zeng
- Laboratory of Reproductive Biology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Yoichiro Hoshino
- Laboratory of Reproductive Biology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Kazuki Susami
- Laboratory of Reproductive Biology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Shinnosuke Honda
- Laboratory of Reproductive Biology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Naojiro Minami
- Laboratory of Reproductive Biology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Shuntaro Ikeda
- Laboratory of Reproductive Biology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.
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Bi S, Tu Z, Chen D, Zhang S. Histone modifications in embryo implantation and placentation: insights from mouse models. Front Endocrinol (Lausanne) 2023; 14:1229862. [PMID: 37600694 PMCID: PMC10436591 DOI: 10.3389/fendo.2023.1229862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/13/2023] [Indexed: 08/22/2023] Open
Abstract
Embryo implantation and placentation play pivotal roles in pregnancy by facilitating crucial maternal-fetal interactions. These dynamic processes involve significant alterations in gene expression profiles within the endometrium and trophoblast lineages. Epigenetics regulatory mechanisms, such as DNA methylation, histone modification, chromatin remodeling, and microRNA expression, act as regulatory switches to modulate gene activity, and have been implicated in establishing a successful pregnancy. Exploring the alterations in these epigenetic modifications can provide valuable insights for the development of therapeutic strategies targeting complications related to pregnancy. However, our current understanding of these mechanisms during key gestational stages remains incomplete. This review focuses on recent advancements in the study of histone modifications during embryo implantation and placentation, while also highlighting future research directions in this field.
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Affiliation(s)
- Shilei Bi
- Key Laboratory for Major Obstetric Diseases of Guangdong, Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou, China
- Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangzhou, China
| | - Zhaowei Tu
- Key Laboratory for Major Obstetric Diseases of Guangdong, Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou, China
- Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangzhou, China
| | - Dunjin Chen
- Key Laboratory for Major Obstetric Diseases of Guangdong, Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou, China
- Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangzhou, China
| | - Shuang Zhang
- Key Laboratory for Major Obstetric Diseases of Guangdong, Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Guangdong-Hong Kong-Macao Greater Bay Area Higher Education Joint Laboratory of Maternal-Fetal Medicine, Guangzhou, China
- Guangdong Engineering and Technology Research Center of Maternal-Fetal Medicine, Guangzhou, China
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Speckhart SL, Oliver MA, Ealy AD. Developmental Hurdles That Can Compromise Pregnancy during the First Month of Gestation in Cattle. Animals (Basel) 2023; 13:1760. [PMID: 37889637 PMCID: PMC10251927 DOI: 10.3390/ani13111760] [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: 05/10/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 10/29/2023] Open
Abstract
Several key developmental events are associated with early embryonic pregnancy losses in beef and dairy cows. These developmental problems are observed at a greater frequency in pregnancies generated from in-vitro-produced bovine embryos. This review describes critical problems that arise during oocyte maturation, fertilization, early embryonic development, compaction and blastulation, embryonic cell lineage specification, elongation, gastrulation, and placentation. Additionally, discussed are potential remediation strategies, but unfortunately, corrective actions are not available for several of the problems being discussed. Further research is needed to produce bovine embryos that have a greater likelihood of surviving to term.
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Affiliation(s)
| | | | - Alan D. Ealy
- School of Animal Science, Virginia Tech, Blacksburg, VA 24061, USA; (S.L.S.); (M.A.O.)
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Roach AN, Zimmel KN, Thomas KN, Basel A, Bhadsavle SS, Golding MC. Preconception paternal alcohol exposure decreases IVF embryo survival and pregnancy success rates in a mouse model. Mol Hum Reprod 2023; 29:gaad002. [PMID: 36637195 PMCID: PMC9907225 DOI: 10.1093/molehr/gaad002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/22/2022] [Indexed: 01/14/2023] Open
Abstract
Increasingly, couples struggling with fertility turn to assisted reproductive techniques, including IVF, to have children. Despite the demonstrated influence of periconception male health and lifestyle choices on offspring development, studies examining IVF success rates and child health outcomes remain exclusively focused on maternal factors. Using a physiologically relevant mouse model, we tested the hypothesis that chronic paternal preconception alcohol intake adversely affects IVF success and negatively impacts IVF offspring fetoplacental growth. Using a voluntary, binge-like mouse model, we exposed sexually mature C57BL/6J males to three preconception treatments (0% (Control), 6% EtOH or 10% EtOH) for 6 weeks, isolated and cryopreserved caudal sperm from treated males, and then used these samples to fertilize oocytes before assessing IVF embryo developmental outcomes. We found that preconception paternal alcohol use reduced IVF embryo survival and pregnancy success rates in a dose-dependent manner, with the pregnancy success rate of the 10% EtOH treatment falling to half those of the Controls. Mechanistically, we found that preconception paternal alcohol exposure disrupts embryonic gene expression, including Fgf4 and Egfr, two critical regulators of trophectoderm stem cell growth and placental patterning, with lasting impacts on the histological organization of the late-term placenta. The changes in placental histoarchitecture were accompanied by altered regulation of pathways controlling mitochondrial function, oxidative phosphorylation and some imprinted genes. Our studies indicate that male alcohol use may significantly impede IVF success rates, increasing the couple's financial burden and emotional stress, and highlights the need to expand prepregnancy messaging to emphasize the reproductive dangers of alcohol use by both parents.
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Affiliation(s)
- Alexis N Roach
- Department of Veterinary Physiology & Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Katherine N Zimmel
- Department of Veterinary Physiology & Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Kara N Thomas
- Department of Veterinary Physiology & Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Alison Basel
- Department of Veterinary Physiology & Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Sanat S Bhadsavle
- Department of Veterinary Physiology & Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Michael C Golding
- Department of Veterinary Physiology & Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
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Ikeda S. Current status of genome-wide epigenetic profiling of mammalian preimplantation embryos. Reprod Med Biol 2023; 22:e12521. [PMID: 37351110 PMCID: PMC10283350 DOI: 10.1002/rmb2.12521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/25/2023] [Accepted: 06/06/2023] [Indexed: 06/24/2023] Open
Abstract
Background Genome-wide information on epigenetic modifications in mammalian preimplantation embryos was an unexplored sanctuary of valuable research insights protected by the difficulty of its analysis. However, that is no longer the case, and many epigenome maps are now available for sightseeing there. Methods This review overviews the current status of genome-wide epigenetic profiling in terms of DNA methylome and histone modifications in mammalian preimplantation embryos. Main findings As the sensitivity of methods for analyzing epigenetic modifications increased, pioneering work began to explore the genome-wide epigenetic landscape in the mid-2010s, first for DNA methylation and then for histone modifications. Since then, a huge amount of data has accumulated, revealing typical epigenetic profiles in preimplantation development and, more recently, changes in response to environmental interventions. Conclusions These accumulating data may be used to improve the quality of preimplantation embryos, both in terms of their short-term developmental competence and their subsequent long-term health implications.
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Affiliation(s)
- Shuntaro Ikeda
- Laboratory of Reproductive Biology, Graduate School of AgricultureKyoto UniversityKyotoJapan
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10
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Bhadsavle SS, Golding MC. Paternal epigenetic influences on placental health and their impacts on offspring development and disease. Front Genet 2022; 13:1068408. [PMID: 36468017 PMCID: PMC9716072 DOI: 10.3389/fgene.2022.1068408] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/04/2022] [Indexed: 07/25/2023] Open
Abstract
Our efforts to understand the developmental origins of birth defects and disease have primarily focused on maternal exposures and intrauterine stressors. Recently, research into non-genomic mechanisms of inheritance has led to the recognition that epigenetic factors carried in sperm also significantly impact the health of future generations. However, although researchers have described a range of potential epigenetic signals transmitted through sperm, we have yet to obtain a mechanistic understanding of how these paternally-inherited factors influence offspring development and modify life-long health. In this endeavor, the emerging influence of the paternal epigenetic program on placental development, patterning, and function may help explain how a diverse range of male exposures induce comparable intergenerational effects on offspring health. During pregnancy, the placenta serves as the dynamic interface between mother and fetus, regulating nutrient, oxygen, and waste exchange and coordinating fetal growth and maturation. Studies examining intrauterine maternal stressors routinely describe alterations in placental growth, histological organization, and glycogen content, which correlate with well-described influences on infant health and adult onset of disease. Significantly, the emergence of similar phenotypes in models examining preconception male exposures indicates that paternal stressors transmit an epigenetic memory to their offspring that also negatively impacts placental function. Like maternal models, paternally programmed placental dysfunction exerts life-long consequences on offspring health, particularly metabolic function. Here, focusing primarily on rodent models, we review the literature and discuss the influences of preconception male health and exposure history on placental growth and patterning. We emphasize the emergence of common placental phenotypes shared between models examining preconception male and intrauterine stressors but note that the direction of change frequently differs between maternal and paternal exposures. We posit that alterations in placental growth, histological organization, and glycogen content broadly serve as reliable markers of altered paternal developmental programming, predicting the emergence of structural and metabolic defects in the offspring. Finally, we suggest the existence of an unrecognized developmental axis between the male germline and the extraembryonic lineages that may have evolved to enhance fetal adaptation.
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Affiliation(s)
| | - Michael C. Golding
- Department of Veterinary Physiology and Pharmacology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, United States
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11
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Mo J, Liu X, Huang Y, He R, Zhang Y, Huang H. Developmental origins of adult diseases. MEDICAL REVIEW (BERLIN, GERMANY) 2022; 2:450-470. [PMID: 37724166 PMCID: PMC10388800 DOI: 10.1515/mr-2022-0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/11/2022] [Indexed: 09/20/2023]
Abstract
The occurrence and mechanisms of developmental adult diseases have gradually attracted attention in recent years. Exposure of gametes and embryos to adverse environments, especially during plastic development, can alter the expression of certain tissue-specific genes, leading to increased susceptibility to certain diseases in adulthood, such as diabetes, cardiovascular disease, neuropsychiatric, and reproductive system diseases, etc. The occurrence of chronic disease in adulthood is partly due to genetic factors, and the remaining risk is partly due to environmental-dependent epigenetic information alteration, including DNA methylation, histone modifications, and noncoding RNAs. Changes in this epigenetic information potentially damage our health, which has also been supported by numerous epidemiological and animal studies in recent years. Environmental factors functionally affect embryo development through epimutation, transmitting diseases to offspring and even later generations. This review mainly elaborated on the concept of developmental origins of adult diseases, and revealed the epigenetic mechanisms underlying these events, discussed the theoretical basis for the prevention and treatment of related diseases.
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Affiliation(s)
- Jiaying Mo
- Department of Obstetrics and Gynecology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang Province, China
- The Key Laboratory of Reproductive Genetics (Zhejiang University), Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Xuanqi Liu
- The Key Laboratory of Reproductive Genetics (Zhejiang University), Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Yutong Huang
- The Key Laboratory of Reproductive Genetics (Zhejiang University), Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Renke He
- Department of Obstetrics and Gynecology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang Province, China
- The Key Laboratory of Reproductive Genetics (Zhejiang University), Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Yu Zhang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Hefeng Huang
- Department of Obstetrics and Gynecology, The Fourth Affiliated Hospital, International Institutes of Medicine, Zhejiang University School of Medicine, Yiwu, Zhejiang Province, China
- The Key Laboratory of Reproductive Genetics (Zhejiang University), Ministry of Education, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
- Research Units of Embryo Original Diseases, Chinese Academy of Medical Sciences (No. 2019RU056), Shanghai, China
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