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Chen Y, Zhang M, Gao Y, Li M, Zheng W, Guo X, Li F. Perinatal complications and neonatal outcomes in in vitro fertilization/intracytoplasmic sperm injection: a propensity score matching cohort study. Front Endocrinol (Lausanne) 2024; 15:1405550. [PMID: 39092286 PMCID: PMC11291349 DOI: 10.3389/fendo.2024.1405550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 07/04/2024] [Indexed: 08/04/2024] Open
Abstract
Background The utilization of in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) has witnessed a significant increase in recent years. However, the comparative perinatal and neonatal outcomes compared to natural pregnancies are unclear. This study aims to compare the outcomes of pregnancies from IVF and ICSI with natural pregnancies. Methods This retrospective, propensity score-matched cohort study was conducted at the First People's Hospital of Shangqiu and The First Affiliated Hospital of Xinjiang Medical University, involving 5,628 patients from February 2019 to December 2022. It compared pregnancies achieved through IVF/ICSI with those conceived naturally. The primary outcomes assessed were perinatal complications and neonatal health parameters. Propensity score matching and multivariate logistic regression analysis were employed to adjust for potential confounders and identify independent associations. Results After propensity score matching, the IVF/ICSI group demonstrated significantly higher rates of placental adherence (12.1% vs. 7.4%, p < 0.001) and postpartum hemorrhage (11.1% vs. 7.6%, p = 0.002) compared to the NP group. Neonates in the IVF/ICSI group had a lower gestational age (38.21 ± 2.12 weeks vs. 38.63 ± 2.29 weeks, p < 0.001), reduced birth weight (3159.42 ± 722.75 g vs. 3211.31 ± 624.42 g, p = 0.032), and an increased preterm delivery rate (11.2% vs. 8.9%, p = 0.017). Multivariate analysis further confirmed these findings, highlighting the independent associations between IVF/ICSI and these adverse outcomes. Conclusion This study suggests a potential correlation between the use of IVF/ICSI and unfavorable perinatal and neonatal outcomes. These findings underscore the critical need for ongoing monitoring and research efforts to enhance the safety and effectiveness of these reproductive technologies.
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Affiliation(s)
- Ying Chen
- Center for Reproductive Medicine, The First People’s Hospital of Shangqiu, Clinical College affiliated to XuZhou Medical University, Shangqiu, Henan, China
| | - Mengjie Zhang
- Center for Reproductive Medicine, The First Affiliated Hospital of Xinjiang Medical University, Urumchi, Xinjiang, China
| | - Yumei Gao
- Center for Reproductive Medicine, The First People’s Hospital of Shangqiu, Clinical College affiliated to XuZhou Medical University, Shangqiu, Henan, China
| | - Mingming Li
- Department of Gynaecology, Graduate School of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenjun Zheng
- Center for Reproductive Medicine, The First People’s Hospital of Shangqiu, Clinical College affiliated to XuZhou Medical University, Shangqiu, Henan, China
| | - Xueyan Guo
- Center for Reproductive Medicine, The First People’s Hospital of Shangqiu, Clinical College affiliated to XuZhou Medical University, Shangqiu, Henan, China
| | - Fei Li
- Center for Reproductive Medicine, The First People’s Hospital of Shangqiu, Clinical College affiliated to XuZhou Medical University, Shangqiu, Henan, China
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Yao F, Chu M, Xi G, Dai J, Wang Z, Hao J, Yang Q, Wang W, Tang Y, Zhang J, Yue Y, Wang Y, Xu Y, Zhao W, Ma L, Liu J, Zhang Z, Tian J, An L. Single-embryo transcriptomic atlas of oxygen response reveals the critical role of HIF-1α in prompting embryonic zygotic genome activation. Redox Biol 2024; 72:103147. [PMID: 38593632 PMCID: PMC11016760 DOI: 10.1016/j.redox.2024.103147] [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: 02/28/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 04/11/2024] Open
Abstract
Adaptive response to physiological oxygen levels (physO2; 5% O2) enables embryonic survival in a low-oxygen developmental environment. However, the mechanism underlying the role of physO2 in supporting preimplantation development, remains elusive. Here, we systematically studied oxygen responses of hallmark events in preimplantation development. Focusing on impeded transcriptional upregulation under atmospheric oxygen levels (atmosO2; 20% O2) during the 2-cell stage, we functionally identified a novel role of HIF-1α in promoting major zygotic genome activation by serving as an oxygen-sensitive transcription factor. Moreover, during blastocyst formation, atmosO2 impeded H3K4me3 and H3K27me3 deposition by deregulating histone-lysine methyltransferases, thus impairing X-chromosome inactivation in blastocysts. In addition, we found atmosO2 impedes metabolic shift to glycolysis before blastocyst formation, thus resulting a low-level histone lactylation deposition. Notably, we also reported an increased sex-dimorphic oxygen response of embryos upon preimplantation development. Together, focusing on genetic and epigenetic events that are essential for embryonic survival and development, the present study advances current knowledge of embryonic adaptive responses to physO2, and provides novel insight into mechanism underlying irreversibly impaired developmental potential due to a short-term atmosO2 exposure.
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Affiliation(s)
- Fusheng Yao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Meiqiang Chu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Guangyin Xi
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Jiage Dai
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Zhaochen Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Jia Hao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Qianying Yang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Wenjing Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Yawen Tang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Jingyu Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Yuan Yue
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Yue Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Yefen Xu
- Animal Science Department, Tibet Agricultural and Animal Husbandry College, 100 Yucai Road, Bayi District, Tibet, 860000, Nyingchi, PR China
| | - Wei Zhao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Lizhu Ma
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Juan Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Zhenni Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China
| | - Jianhui Tian
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China.
| | - Lei An
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, PR China.
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Guldager T, Gabrielsen A, Iversen LH, Kirkegaard K. Culture media affect sex after IVF treatment-a detailed analysis of explanatory variables. J Assist Reprod Genet 2024; 41:1181-1191. [PMID: 38472564 PMCID: PMC11143141 DOI: 10.1007/s10815-024-03081-1] [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: 09/27/2023] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
PURPOSE The purpose of this study was to provide a detailed analysis of clinical and laboratory factors associated with skewed secondary sex ratio (SSR) after ART. METHOD Retrospective cohort study of embryos resulting in live births, from frozen and fresh single blastocyst transfers. Embryos were cultured in either G-TL (n = 686) or Sage media (n = 685). Data was analyzed using a multivariate logistic regression model and a mixed model analysis. RESULTS Significantly more male singletons were born after culture in Sage media compared to G-TL media (odds ratio (OR) 1.34, 95% CI (1.05, 1.70), P = 0.02). Inner cell mass grade B vs A (OR 1.36 95% CI (1.05, 1.76), P = 0.02) and one previous embryo transfer (OR 1.49, 95% CI (1.03, 2.16), P = 0.03) were associated with a significantly higher probability of male child at birth. Factors associated with a reduced probability of male child were expansion grade 3 vs 5 (OR 0.66, 95% CI (10.45, 0.96), P = 0.03) and trophectoderm grade B vs A (OR 0.57, 95% CI (0.44, 0.74), P = 0.00). Male embryos developed significantly faster in Sage media compared to G-TL media for the stages of blastocyst (- 1.12 h, 95% CI (- 2.12, - 0.12)), expanded blastocyst (- 1.35 h, 95% CI (- 2.34, - 0.35)), and hatched blastocyst (- 1.75 h, 95% CI (- 2.99, - 0.52)). CONCLUSION More male children were born after culture in Sage media compared to G-TL media. Male embryo development was affected by culture media. Our observations suggest that culture media impact male embryo quality selectively, thus potentially favoring the selection of male embryos.
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Affiliation(s)
- T Guldager
- Fertility Clinic, Horsens Regional Hospital, Sundvej 30, 8700, Horsens, Denmark.
| | - A Gabrielsen
- Fertility Clinic, Horsens Regional Hospital, Sundvej 30, 8700, Horsens, Denmark
| | - L H Iversen
- Fertility Clinic, Horsens Regional Hospital, Sundvej 30, 8700, Horsens, Denmark
| | - K Kirkegaard
- Fertility Clinic, Horsens Regional Hospital, Sundvej 30, 8700, Horsens, Denmark
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4
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Crowe AD, Sánchez JM, Moore SG, McDonald M, Rodrigues R, Morales MF, Orsi de Freitas L, Randi F, Furlong J, Browne JA, Rabaglino MB, Lonergan P, Butler ST. Fertility in seasonal-calving pasture-based lactating dairy cows following timed artificial insemination or timed embryo transfer with fresh or frozen in vitro-produced embryos. J Dairy Sci 2024; 107:1788-1804. [PMID: 37806631 DOI: 10.3168/jds.2023-23520] [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: 03/21/2023] [Accepted: 09/18/2023] [Indexed: 10/10/2023]
Abstract
The objective was to compare pregnancy per service event (P/S) in lactating dairy cows following timed artificial insemination (AI) or timed embryo transfer (ET) using either fresh or frozen in vitro-produced embryos. Oocytes were collected once per week for up to 9 wk using transvaginal ovum pick-up from elite dairy donors (ET-DAIRY; n = 40; Holstein-Friesian and Jersey) and elite beef donors (ET-ELITE-BEEF; n = 21; Angus). Both ET-DAIRY and ET-ELITE-BEEF donors consisted of heifers and cows. In addition, oocytes were collected from the ovaries of beef heifers of known pedigree following slaughter at a commercial abattoir (ET-COMM-BEEF; n = 119). Following in vitro maturation and fertilization, presumptive zygotes were cultured in vitro to the blastocyst stage. Grade 1 blastocysts were either transferred fresh or frozen for on-farm thawing and direct transfer. A total of 1,106 recipient cows (all lactating, predominantly Holstein-Friesian) located on 16 herdlets were blocked based on parity, calving date, and Economic Breeding Index, and randomly assigned to receive AI (n = 243) or ET (n = 863) after estrous synchronization with a 10-d Progesterone-synch protocol. Cows assigned to ET were further randomized to receive fresh (n = 187) or frozen (n = 178) ET-ELITE-BEEF embryos, fresh (n = 169) or frozen (n = 162) ET-DAIRY embryos, or fresh (n = 80) or frozen (n = 87) ET-COMM-BEEF embryos. Pregnancy was diagnosed using transrectal ultrasound on d 32 to 35 after synchronized ovulation and confirmed on d 62 to 65, at which time fetal sex was determined. Pregnancy per service event at d 32 was not different between AI (48.8%) and ET (48.9%) and did not differ between dairy and beef embryos (50.3% vs. 48.1%, respectively). However, P/S was less on d 32 following transfer of frozen embryos (41.6%) compared with fresh embryos (56.1%). Pregnancy loss between d 32 and 62 was greater for ET (15.1%) compared with AI (4.7%), with greater losses observed for frozen beef (18.5%), fresh beef (17.3%), and frozen dairy (19.2%) compared with fresh dairy (6.0%) embryos. Serum progesterone (P4) concentration on d 7 was associated with P/S at d 32 and 62. Cows in the quartile with the least serum P4 concentrations (quartile 1) had less probability of being pregnant on d 32 (33.4%) compared with cows in the 3 upper quartiles for serum P4 (45.7%, 55.6%, and 61.2% for quartile 2, quartile 3, and quartile 4, respectively). Sex ratio (male:female) at d 62 was skewed toward more male fetuses following ET (61.1:38.9) compared with AI (43.2:56.8) and was consistent with the sex ratio among in vitro blastocysts (61.2:38.8). In conclusion, P/S was similar for AI and ET, although pregnancy loss between d 32 and 62 was greater for ET than for AI.
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Affiliation(s)
- A D Crowe
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996; School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | - J M Sánchez
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5; Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28040, Madrid, Spain
| | - S G Moore
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996
| | - M McDonald
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | | | | | | | - F Randi
- CEVA Santé Animale, Libourne, Bordeaux, 33500, France
| | - J Furlong
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin, 4, Ireland
| | - J A Browne
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | - M B Rabaglino
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5
| | - P Lonergan
- School of Agriculture and Food Science, University College Dublin, Ireland D04 N2E5.
| | - S T Butler
- Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland P61 C996.
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5
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Li J, Liu Y, Huang H, Jin L. Cardiovascular health of offspring conceived by assisted reproduction technology: a comprehensive review. Front Cardiovasc Med 2024; 11:1287060. [PMID: 38292241 PMCID: PMC10824981 DOI: 10.3389/fcvm.2024.1287060] [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: 09/01/2023] [Accepted: 01/08/2024] [Indexed: 02/01/2024] Open
Abstract
Recently, the use of assisted reproductive technology (ART) has rapidly increased. As a result, an increasing number of people are concerned about the safety of offspring produced through ART. Moreover, emerging evidence suggests an increased risk of cardiovascular disease (CVD) in offspring conceived using ART. In this review, we discuss the epigenetic mechanisms involved in altered DNA methylation, histone modification, and microRNA expression, as well as imprinting disorders. We also summarize studies on cardiovascular changes and other risk factors for cardiovascular disease, such as adverse intrauterine environments, perinatal complications, and altered metabolism following assisted reproductive technology (ART). Finally, we emphasize the epigenetic mechanisms underlying the increased risk of CVD in offspring conceived through ART, which could contribute to the early diagnosis and prevention of CVD in the ART population.
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Affiliation(s)
| | | | - Hefeng Huang
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
| | - Li Jin
- Obstetrics and Gynecology Hospital, Institute of Reproduction and Development, Fudan University, Shanghai, China
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6
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Khan SA, Theunissen TW. Modeling X-chromosome inactivation and reactivation during human development. Curr Opin Genet Dev 2023; 82:102096. [PMID: 37597506 PMCID: PMC10588740 DOI: 10.1016/j.gde.2023.102096] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/27/2023] [Accepted: 07/16/2023] [Indexed: 08/21/2023]
Abstract
Stem-cell-based embryo models generate much excitement as they offer a window into an early phase of human development that has remained largely inaccessible to scientific investigation. An important epigenetic phenomenon during early embryogenesis is the epigenetic silencing of one of the two X chromosomes in female embryos, which ensures an equal output of X-linked gene expression between the sexes. X-chromosome inactivation (XCI) is thought to be established within the first three weeks of human development, although the inactive X-chromosome is reactivated in primordial germ cells (PGCs) that migrate to the embryonic gonads. Here, we summarize our current understanding of X-chromosome dynamics during human development and comment on the potential of recently established stem-cell-based models to reveal the underlying mechanisms.
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Affiliation(s)
- Shafqat A Khan
- Department of Developmental Biology and Center of Regenerative Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA. https://twitter.com/@sakhan2019
| | - Thorold W Theunissen
- Department of Developmental Biology and Center of Regenerative Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.
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7
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Romanowska J, Nustad HE, Page CM, Denault WRP, Lee Y, Magnus MC, Haftorn KL, Gjerdevik M, Novakovic B, Saffery R, Gjessing HK, Lyle R, Magnus P, Håberg SE, Jugessur A. The X-factor in ART: does the use of assisted reproductive technologies influence DNA methylation on the X chromosome? Hum Genomics 2023; 17:35. [PMID: 37085889 PMCID: PMC10122315 DOI: 10.1186/s40246-023-00484-6] [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: 01/09/2023] [Accepted: 04/10/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Assisted reproductive technologies (ART) may perturb DNA methylation (DNAm) in early embryonic development. Although a handful of epigenome-wide association studies of ART have been published, none have investigated CpGs on the X chromosome. To bridge this knowledge gap, we leveraged one of the largest collections of mother-father-newborn trios of ART and non-ART (natural) conceptions to date to investigate sex-specific DNAm differences on the X chromosome. The discovery cohort consisted of 982 ART and 963 non-ART trios from the Norwegian Mother, Father, and Child Cohort Study (MoBa). To verify our results from the MoBa cohort, we used an external cohort of 149 ART and 58 non-ART neonates from the Australian 'Clinical review of the Health of adults conceived following Assisted Reproductive Technologies' (CHART) study. The Illumina EPIC array was used to measure DNAm in both datasets. In the MoBa cohort, we performed a set of X-chromosome-wide association studies ('XWASs' hereafter) to search for sex-specific DNAm differences between ART and non-ART newborns. We tested several models to investigate the influence of various confounders, including parental DNAm. We also searched for differentially methylated regions (DMRs) and regions of co-methylation flanking the most significant CpGs. Additionally, we ran an analogous model to our main model on the external CHART dataset. RESULTS In the MoBa cohort, we found more differentially methylated CpGs and DMRs in girls than boys. Most of the associations persisted after controlling for parental DNAm and other confounders. Many of the significant CpGs and DMRs were in gene-promoter regions, and several of the genes linked to these CpGs are expressed in tissues relevant for both ART and sex (testis, placenta, and fallopian tube). We found no support for parental DNAm-dependent features as an explanation for the observed associations in the newborns. The most significant CpG in the boys-only analysis was in UBE2DNL, which is expressed in testes but with unknown function. The most significant CpGs in the girls-only analysis were in EIF2S3 and AMOT. These three loci also displayed differential DNAm in the CHART cohort. CONCLUSIONS Genes that co-localized with the significant CpGs and DMRs associated with ART are implicated in several key biological processes (e.g., neurodevelopment) and disorders (e.g., intellectual disability and autism). These connections are particularly compelling in light of previous findings indicating that neurodevelopmental outcomes differ in ART-conceived children compared to those naturally conceived.
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Affiliation(s)
- Julia Romanowska
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway.
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
| | - Haakon E Nustad
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- DeepInsight, 0154, Oslo, Norway
| | - Christian M Page
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - William R P Denault
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Yunsung Lee
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Maria C Magnus
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Kristine L Haftorn
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Miriam Gjerdevik
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, Bergen, Norway
| | - Boris Novakovic
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Richard Saffery
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Håkon K Gjessing
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Robert Lyle
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Per Magnus
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Siri E Håberg
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Astanand Jugessur
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
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8
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Yao F, Hao J, Wang Z, Chu M, Zhang J, Xi G, Zhang Z, An L, Tian J. WNT Co-Receptor LRP6 Is Critical for Zygotic Genome Activation and Embryonic Developmental Potential by Interacting with Oviductal Paracrine Ligand WNT2. Genes (Basel) 2023; 14:genes14040891. [PMID: 37107647 PMCID: PMC10138000 DOI: 10.3390/genes14040891] [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: 01/02/2023] [Revised: 02/02/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Mammalian preimplantation development depends on the interaction between embryonic autocrine and maternal paracrine signaling. Despite the robust independence of preimplantation embryos, oviductal factors are thought to be critical to pregnancy success. However, how oviductal factors regulate embryonic development and the underlying mechanism remain unknown. In the present study, focusing on WNT signaling, which has been reported to be essential for developmental reprogramming after fertilization, we analyzed the receptor-ligand repertoire of preimplantation embryonic WNT signaling, and identified that the WNT co-receptor LRP6 is necessary for early cleavage and has a prolonged effect on preimplantation development. LRP6 inhibition significantly impeded zygotic genome activation and disrupted relevant epigenetic reprogramming. Focusing on the potential oviductal WNT ligands, we found WNT2 as the candidate interacting with embryonic LRP6. More importantly, we found that WNT2 supplementation in culture medium significantly promoted zygotic genome activation (ZGA) and improved blastocyst formation and quality following in vitro fertilization (IVF). In addition, WNT2 supplementation significantly improved implantation rate and pregnancy outcomes following embryo transfer. Collectively, our findings not only provide novel insight into how maternal factors regulate preimplantation development through maternal-embryonic communication, but they also propose a promising strategy for improving current IVF systems.
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Affiliation(s)
- Fusheng Yao
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jia Hao
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Zhaochen Wang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Meiqiang Chu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jingyu Zhang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Guangyin Xi
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Zhenni Zhang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Lei An
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
| | - Jianhui Tian
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, China
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9
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Gulrajani NB, Montes S, McGough D, Wimberly CE, Khattab A, Semmes EC, Towry L, Cohen JL, Hurst JH, Landi D, Hill SN, Walsh KM. Assisted reproductive technology and association with childhood cancer subtypes. Cancer Med 2023; 12:3410-3418. [PMID: 35929579 PMCID: PMC9939138 DOI: 10.1002/cam4.5114] [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: 12/18/2021] [Revised: 07/19/2022] [Accepted: 07/24/2022] [Indexed: 11/09/2022] Open
Abstract
OBJECTIVES To investigate the association between assisted reproductive technology (ART) use and childhood cancer subtype. STUDY DESIGN We deployed a cross-sectional survey of 1701 parents of children with cancer about their ART use, demographics, and gestational and perinatal factors. Multivariable logistic regression modeled the association between ART use, birthweight and multiple gestation status with childhood cancer, by subtype. RESULTS ART use was highest among children with osteosarcoma relative to children with other cancer types, and this association was statistically significant in multivariable models (OR = 4.4; 95% CI = 1.7-11.3; p = 0.0020). ART use was also elevated among children with hepatoblastoma, but this relationship appeared to be due to the strong associations between ART use and lower birthweight in our sample. No specific ART modality appeared to drive these associations. In univariate models, multiple gestation was associated with a 2.7-fold increased odds of hepatoblastoma (OR = 2.71; 95% CI = 1.14-6.42; p = 0.02) and a 1.6-fold increased odds of neuroblastoma (OR = 1.62; 95% CI = 1.03-2.54; p = 0.03), but these associations were not retained in multivariable models. CONCLUSIONS Associations between ART use and hepatoblastoma risk may be attributable to birthweight, a known hepatoblastoma risk factor. ART use may also be associated with osteosarcoma, independent of birthweight, an association not previously observed in studies limited to cancers diagnosed before adolescence. Evaluating long-term health outcomes in children conceived by ART, throughout adolescence and potentially into adulthood, appears warranted.
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Affiliation(s)
- Natalie B. Gulrajani
- Children's Health and Discovery Institute, Department of PediatricsDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Samuel Montes
- Master of Biomedical Sciences ProgramDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Daniel McGough
- Master of Biomedical Sciences ProgramDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Courtney E. Wimberly
- Department of Neurosurgery and Preston Robert Tisch Brain Tumor CenterDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Ameera Khattab
- Master of Biomedical Sciences ProgramDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Eleanor C. Semmes
- Children's Health and Discovery Institute, Department of PediatricsDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Lisa Towry
- My Childhood Cancer ProgramAlex's Lemonade Stand FoundationBala CynwydPennsylvaniaUSA
| | - Jennifer L. Cohen
- Division of Medical Genetics, Department of PediatricsDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Jillian H. Hurst
- Children's Health and Discovery Institute, Department of PediatricsDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Daniel Landi
- Department of Neurosurgery and Preston Robert Tisch Brain Tumor CenterDuke University School of MedicineDurhamNorth CarolinaUSA
| | - Sherika N. Hill
- Children's Health and Discovery Institute, Department of PediatricsDuke University School of MedicineDurhamNorth CarolinaUSA
- Frank Porter Graham Child Development InstituteThe University of North CarolinaChapel HillNorth CarolinaUSA
| | - Kyle M. Walsh
- Children's Health and Discovery Institute, Department of PediatricsDuke University School of MedicineDurhamNorth CarolinaUSA
- Department of Neurosurgery and Preston Robert Tisch Brain Tumor CenterDuke University School of MedicineDurhamNorth CarolinaUSA
- Duke Cancer InstituteDuke University School of MedicineDurhamNorth CarolinaUSA
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10
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Juchniewicz P, Kloska A, Portalska K, Jakóbkiewicz-Banecka J, Węgrzyn G, Liss J, Głodek P, Tukaj S, Piotrowska E. X-chromosome inactivation patterns depend on age and tissue but not conception method in humans. Chromosome Res 2023; 31:4. [PMID: 36695960 PMCID: PMC9877087 DOI: 10.1007/s10577-023-09717-9] [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: 09/16/2022] [Revised: 11/27/2022] [Accepted: 12/06/2022] [Indexed: 01/26/2023]
Abstract
Female somatic X-chromosome inactivation (XCI) balances the X-linked transcriptional dosages between the sexes, randomly silencing the maternal or paternal X chromosome in each cell of 46,XX females. Skewed XCI toward one parental X has been observed in association with ageing and in some female carriers of X-linked diseases. To address the problem of non-random XCI, we quantified the XCI skew in different biological samples of naturally conceived females of different age groups and girls conceived after in vitro fertilization (IVF). Generally, XCI skew differed between saliva, blood, and buccal swabs, while saliva and blood had the most similar XCI patterns in individual females. XCI skew increased with age in saliva, but not in other tissues. We showed no significant differences in the XCI patterns in tissues of naturally conceived and IVF females. The gene expression profile of the placenta and umbilical cord blood was determined depending on the XCI pattern. The increased XCI skewing in the placental tissue was associated with the differential expression of several genes out of 40 considered herein. Notably, skewed XCI patterns (> 80:20) were identified with significantly increased expression levels of four genes: CD44, KDM6A, PHLDA2, and ZRSR2. The differences in gene expression patterns between samples with random and non-random XCI may shed new light on factors contributing to the XCI pattern outcome and indicate new paths in future research on the phenomenon of XCI skewing.
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Affiliation(s)
- Patrycja Juchniewicz
- Department of Medical Biology and Genetics, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Anna Kloska
- Department of Medical Biology and Genetics, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Karolina Portalska
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Joanna Jakóbkiewicz-Banecka
- Department of Medical Biology and Genetics, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Joanna Liss
- Department of Medical Biology and Genetics, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland ,Research and Development Center, INVICTA, Sopot, Poland
| | - Piotr Głodek
- Research and Development Center, INVICTA, Sopot, Poland
| | - Stefan Tukaj
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Ewa Piotrowska
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
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11
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Mitochondrial genome undergoes de novo DNA methylation that protects mtDNA against oxidative damage during the peri-implantation window. Proc Natl Acad Sci U S A 2022; 119:e2201168119. [PMID: 35858425 PMCID: PMC9335330 DOI: 10.1073/pnas.2201168119] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Mitochondrial remodeling during the peri-implantation stage is the hallmark event essential for normal embryogenesis. Among the changes, enhanced oxidative phosphorylation is critical for supporting high energy demands of postimplantation embryos, but increases mitochondrial oxidative stress, which in turn threatens mitochondrial DNA (mtDNA) stability. However, how mitochondria protect their own histone-lacking mtDNA, during this stage remains unclear. Concurrently, the mitochondrial genome gain DNA methylation by this stage. Its spatiotemporal coincidence with enhanced mitochondrial stress led us to ask if mtDNA methylation has a role in maintaining mitochondrial genome stability. Herein, we report that mitochondrial genome undergoes de novo mtDNA methylation that can protect mtDNA against enhanced oxidative damage during the peri-implantation window. Mitochondrial genome gains extensive mtDNA methylation during transition from blastocysts to postimplantation embryos, thus establishing relatively hypermethylated mtDNA from hypomethylated state in blastocysts. Mechanistic study revealed that DNA methyltransferase 3A (DNMT3A) and DNMT3B enter mitochondria during this process and bind to mtDNA, via their unique mitochondrial targeting sequences. Importantly, loss- and gain-of-function analyses indicated that DNMT3A and DNMT3B are responsible for catalyzing de novo mtDNA methylation, in a synergistic manner. Finally, we proved, in vivo and in vitro, that increased mtDNA methylation functions to protect mitochondrial genome against mtDNA damage induced by increased mitochondrial oxidative stress. Together, we reveal mtDNA methylation dynamics and its underlying mechanism during the critical developmental window. We also provide the functional link between mitochondrial epigenetic remodeling and metabolic changes, which reveals a role for nuclear-mitochondrial crosstalk in establishing mitoepigenetics and maintaining mitochondrial homeostasis.
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12
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Tan K, Wilkinson MF. Regulation of both transcription and RNA turnover contribute to germline specification. Nucleic Acids Res 2022; 50:7310-7325. [PMID: 35776114 PMCID: PMC9303369 DOI: 10.1093/nar/gkac542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/29/2022] [Accepted: 06/29/2022] [Indexed: 12/25/2022] Open
Abstract
The nuanced mechanisms driving primordial germ cells (PGC) specification remain incompletely understood since genome-wide transcriptional regulation in developing PGCs has previously only been defined indirectly. Here, using SLAMseq analysis, we determined genome-wide transcription rates during the differentiation of embryonic stem cells (ESCs) to form epiblast-like (EpiLC) cells and ultimately PGC-like cells (PGCLCs). This revealed thousands of genes undergoing bursts of transcriptional induction and rapid shut-off not detectable by RNAseq analysis. Our SLAMseq datasets also allowed us to infer RNA turnover rates, which revealed thousands of mRNAs stabilized and destabilized during PGCLC specification. mRNAs tend to be unstable in ESCs and then are progressively stabilized as they differentiate. For some classes of genes, mRNA turnover regulation collaborates with transcriptional regulation, but these processes oppose each other in a surprisingly high frequency of genes. To test whether regulated mRNA turnover has a physiological role in PGC development, we examined three genes that we found were regulated by RNA turnover: Sox2, Klf2 and Ccne1. Circumvention of their regulated RNA turnover severely impaired the ESC-to-EpiLC and EpiLC-to-PGCLC transitions. Our study demonstrates the functional importance of regulated RNA stability in germline development and provides a roadmap of transcriptional and post-transcriptional regulation during germline specification.
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Affiliation(s)
- Kun Tan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Miles F Wilkinson
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- Institute of Genomic Medicine (IGM), University of California San Diego, La Jolla, CA 92093, USA
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13
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Carrasco B, Pons MC, Parriego M, Boada M, García S, Polyzos NP, Veiga A. Male and female blastocyst: any difference other than the sex? Reprod Biomed Online 2022; 45:851-857. [DOI: 10.1016/j.rbmo.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/29/2022] [Accepted: 05/08/2022] [Indexed: 10/18/2022]
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14
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Wang Z, Meng N, Wang Y, Zhou T, Li M, Wang S, Chen S, Zheng H, Kong S, Wang H, Yan W. Ablation of the miR-465 Cluster Causes a Skewed Sex Ratio in Mice. Front Endocrinol (Lausanne) 2022; 13:893854. [PMID: 35677715 PMCID: PMC9167928 DOI: 10.3389/fendo.2022.893854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/11/2022] [Indexed: 01/31/2023] Open
Abstract
The X-linked miR-465 cluster is highly expressed in the testis, sperm, newborn ovary, and blastocysts as well as in 8-16 cell embryos. However, the physiological role of the miR-465 cluster is still largely unknown. This study aims to dissect the role of the miR-465 cluster in murine development. Despite abundant expression in the testis, ablation of the miR-465 miRNA cluster using CRISPR-Cas9 did not cause infertility. Instead, a skewed sex ratio biased toward males (60% males) was observed among miR-465 KO mice. Further analyses revealed that the female conceptuses selectively degenerated as early as embryonic day 8.5 (E8.5). Small RNA deep sequencing, qPCR, and in situ hybridization analyses revealed that the miRNAs encoded by the miR-465 cluster were mainly localized to the extraembryonic tissue/developing placenta. RNA-seq analyses identified altered mRNA transcriptome characterized by the dysregulation of numerous critical placental genes, e.g., Alkbh1, in the KO conceptuses at E7.5. Taken together, this study showed that the miR-465 cluster is required for normal female placental development, and ablation of the miR-465 cluster leads to a skewed sex ratio with more males (~60%) due to selective degeneration and resorption of the female conceptuses.
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Affiliation(s)
- Zhuqing Wang
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Nan Meng
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine Xiamen University, Xiamen, China
| | - Yue Wang
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Tong Zhou
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
| | - Musheng Li
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
| | - Shawn Wang
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
| | - Sheng Chen
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Huili Zheng
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
| | - Shuangbo Kong
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine Xiamen University, Xiamen, China
| | - Haibin Wang
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
- Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine Xiamen University, Xiamen, China
| | - Wei Yan
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, NV, United States
- The Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, United States
- Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, United States
- *Correspondence: Wei Yan,
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15
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Li X, Liu Y, Mu Q, Tian J, Yu H. MiR-290 family maintains developmental potential by targeting p21 in mouse pre-implantation embryos. Biol Reprod 2021; 106:425-440. [PMID: 34907414 DOI: 10.1093/biolre/ioab227] [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: 07/08/2021] [Revised: 09/29/2021] [Accepted: 12/03/2021] [Indexed: 11/15/2022] Open
Abstract
The miR-290 family is a mouse-specific microRNA cluster, which maintains mouse embryonic stem cells (ESCs) pluripotency by increasing OCT3/4 and C-MYC expression. However, its functions in mouse pre-implantation embryos remain unclear, especially during zygotic genome activation (ZGA). In this study, miR-290 family expression increased from the two-cell embryo stage through the blastocyst stage. Inhibition of miR-294-3p/5p did not affect ZGA initiation or embryo development, whereas pri-miR-290 knockdown decreased ZGA gene expression and slowed embryonic development. In addition, pluripotency decreased in ESCs derived from pri-miR-290 knockdown blastocysts. To clarify the mechanism of action, 33 candidate miR-294-3p target genes were screened from three databases, and miR-294-3p directly targeted the 3'-untranslated region of Cdkn1a (p21) mRNA. Similar to pri-miR-290 knockdown, P21 overexpression impeded embryonic development, whereas simultaneous overexpression of P21 and pri-miR-290 partially rescued embryonic development. The results indicate that the miR-290 family participates in promoting ZGA process and maintaining developmental potency in embryos by targeting p21.
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Affiliation(s)
- Xiangnan Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (RRBGL), Inner Mongolia University, 010070 Hohhot, China
| | - Yueshi Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (RRBGL), Inner Mongolia University, 010070 Hohhot, China
| | - Qier Mu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (RRBGL), Inner Mongolia University, 010070 Hohhot, China
| | - Junliang Tian
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (RRBGL), Inner Mongolia University, 010070 Hohhot, China
| | - Haiquan Yu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock (RRBGL), Inner Mongolia University, 010070 Hohhot, China
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16
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Chu M, Yao F, Xi G, Yang J, Zhang Z, Yang Q, Tian J, An L. Vitamin C Rescues in vitro Embryonic Development by Correcting Impaired Active DNA Demethylation. Front Cell Dev Biol 2021; 9:784244. [PMID: 34869387 PMCID: PMC8640463 DOI: 10.3389/fcell.2021.784244] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/27/2021] [Indexed: 12/17/2022] Open
Abstract
During preimplantation development, a wave of genome-wide DNA demethylation occurs to acquire a hypomethylated genome of the blastocyst. As an essential epigenomic event, postfertilization DNA demethylation is critical to establish full developmental potential. Despite its importance, this process is prone to be disrupted due to environmental perturbations such as manipulation and culture of embryos during in vitro fertilization (IVF), and thus leading to epigenetic errors. However, since the first case of aberrant DNA demethylation reported in IVF embryos, its underlying mechanism remains unclear and the strategy for correcting this error remains unavailable in the past decade. Thus, understanding the mechanism responsible for DNA demethylation defects, may provide a potential approach for preventing or correcting IVF-associated complications. Herein, using mouse and bovine IVF embryos as the model, we reported that ten-eleven translocation (TET)-mediated active DNA demethylation, an important contributor to the postfertilization epigenome reprogramming, was impaired throughout preimplantation development. Focusing on modulation of TET dioxygenases, we found vitamin C and α-ketoglutarate, the well-established important co-factors for stimulating TET enzymatic activity, were synthesized in both embryos and the oviduct during preimplantation development. Accordingly, impaired active DNA demethylation can be corrected by incubation of IVF embryos with vitamin C, and thus improving their lineage differentiation and developmental potential. Together, our data not only provides a promising approach for preventing or correcting IVF-associated epigenetic errors, but also highlights the critical role of small molecules or metabolites from maternal paracrine in finetuning embryonic epigenomic reprogramming during early development.
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Affiliation(s)
- Meiqiang Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Fusheng Yao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guangyin Xi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jiajun Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhenni Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qianying Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jianhui Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
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17
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Yang Q, Liu J, Wang Y, Zhao W, Wang W, Cui J, Yang J, Yue Y, Zhang S, Chu M, Lyu Q, Ma L, Tang Y, Hu Y, Miao K, Zhao H, Tian J, An L. A proteomic atlas of ligand-receptor interactions at the ovine maternal-fetal interface reveals the role of histone lactylation in uterine remodeling. J Biol Chem 2021; 298:101456. [PMID: 34861240 PMCID: PMC8733267 DOI: 10.1016/j.jbc.2021.101456] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 02/05/2023] Open
Abstract
Well-orchestrated maternal–fetal cross talk occurs via secreted ligands, interacting receptors, and coupled intracellular pathways between the conceptus and endometrium and is essential for successful embryo implantation. However, previous studies mostly focus on either the conceptus or the endometrium in isolation. The lack of integrated analysis impedes our understanding of early maternal–fetal cross talk. Herein, focusing on ligand–receptor complexes and coupled pathways at the maternal–fetal interface in sheep, we provide the first comprehensive proteomic map of ligand–receptor pathway cascades essential for embryo implantation. We demonstrate that these cascades are associated with cell adhesion and invasion, redox homeostasis, and the immune response. Candidate interactions and their physiological roles were further validated by functional experiments. We reveal the physical interaction of albumin and claudin 4 and their roles in facilitating embryo attachment to endometrium. We also demonstrate a novel function of enhanced conceptus glycolysis in remodeling uterine receptivity by inducing endometrial histone lactylation, a newly identified histone modification. Results from in vitro and in vivo models supported the essential role of lactate in inducing endometrial H3K18 lactylation and in regulating redox homeostasis and apoptotic balance to ensure successful implantation. By reconstructing a map of potential ligand–receptor pathway cascades at the maternal–fetal interface, our study presents new concepts for understanding molecular and cellular mechanisms that fine-tune conceptus–endometrium cross talk during implantation. This provides more direct and accurate insights for developing potential clinical intervention strategies to improve pregnancy outcomes following both natural and assisted conception.
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Affiliation(s)
- Qianying Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Juan Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yue Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wei Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Wenjing Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jian Cui
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jiajun Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yuan Yue
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Shuai Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Meiqiang Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qingji Lyu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lizhu Ma
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yawen Tang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yupei Hu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Kai Miao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Haichao Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jianhui Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China.
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Tan K, Song HW, Wilkinson MF. RHOX10 drives mouse spermatogonial stem cell establishment through a transcription factor signaling cascade. Cell Rep 2021; 36:109423. [PMID: 34289349 PMCID: PMC8357189 DOI: 10.1016/j.celrep.2021.109423] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/17/2021] [Accepted: 06/28/2021] [Indexed: 12/31/2022] Open
Abstract
Spermatogonial stem cells (SSCs) are essential for male fertility. Here, we report that mouse SSC generation is driven by a transcription factor (TF) cascade controlled by the homeobox protein, RHOX10, which acts by driving the differentiation of SSC precursors called pro-spermatogonia (ProSG). We identify genes regulated by RHOX10 in ProSG in vivo and define direct RHOX10-target genes using several approaches, including a rapid temporal induction assay: iSLAMseq. Together, these approaches identify temporal waves of RHOX10 direct targets, as well as RHOX10 secondary-target genes. Many of the RHOX10-regulated genes encode proteins with known roles in SSCs. Using an in vitro ProSG differentiation assay, we find that RHOX10 promotes mouse ProSG differentiation through a conserved transcriptional cascade involving the key germ-cell TFs DMRT1 and ZBTB16. Our study gives important insights into germ cell development and provides a blueprint for how to define TF cascades.
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Affiliation(s)
- Kun Tan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Hye-Won Song
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Miles F Wilkinson
- Department of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of California, San Diego, La Jolla, CA 92093, USA; Institute of Genomic Medicine, University of California, San Diego, La Jolla, CA 92093, USA.
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19
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Abstract
Transposable elements (TEs) are mobile sequences that engender widespread mutations and thus are a major hazard that must be silenced. The most abundant active class of TEs in mammalian genomes is long interspersed element class 1 (LINE1). Here, we report that LINE1 transposition is suppressed in the male germline by transcription factors encoded by a rapidly evolving X-linked homeobox gene cluster. LINE1 transposition is repressed by many members of this RHOX transcription factor family, including those with different patterns of expression during spermatogenesis. One family member-RHOX10-suppresses LINE1 transposition during fetal development in vivo when the germline would otherwise be susceptible to LINE1 activation because of epigenetic reprogramming. We provide evidence that RHOX10 suppresses LINE transposition by inducing Piwil2, which encodes a key component in the Piwi-interacting RNA pathway that protects against TEs. The ability of RHOX transcription factors to suppress LINE1 is conserved in humans but is lost in RHOXF2 mutants from several infertile human patients, raising the possibility that loss of RHOXF2 causes human infertility by allowing uncontrolled LINE1 expression in the germline. Together, our results support a model in which the Rhox gene cluster is in an evolutionary arms race with TEs, resulting in expansion of the Rhox gene cluster to suppress TEs in different biological contexts.
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Zhao YH, Wang JJ, Zhang PP, Hao HS, Pang YW, Wang HY, Du WH, Zhao SJ, Ruan WM, Zou HY, Hao T, Zhu HB, Zhao XM. Oocyte IVM or vitrification significantly impairs DNA methylation patterns in blastocysts as analysed by single-cell whole-genome methylation sequencing. Reprod Fertil Dev 2021; 32:676-689. [PMID: 32317092 DOI: 10.1071/rd19234] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022] Open
Abstract
To explore the mechanisms leading to the poor quality of IVF blastocysts, the single-cell whole-genome methylation sequencing technique was used in this study to analyse the methylation patterns of bovine blastocysts derived from invivo, fresh (IVF) or vitrified (V_IVF) oocytes. Genome methylation levels of blastocysts in the IVF and V_IVF groups were significantly lower than those of the invivo group (P<0.05). In all, 1149 differentially methylated regions (DMRs) were identified between the IVF and invivo groups, 1578 DMRs were identified between the V_IVF and invivo groups and 151 DMRs were identified between the V_IVF and IVF groups. For imprinted genes, methylation levels of insulin-like growth factor 2 receptor (IGF2R) and protein phosphatase 1 regulatory subunit 9A (PPP1R9A) were lower in the IVF and V_IVF groups than in the invivo group, and the methylation level of paternally expressed 3 (PEG3) was lower in the V_IVF group than in the IVF and invivo groups. Genes with DMRs between the IVF and invivo and the V_IVF and IVF groups were primarily enriched in oocyte maturation pathways, whereas DMRs between the V_IVF and invivo groups were enriched in fertilisation and vitrification-vulnerable pathways. The results of this study indicate that differences in the methylation of critical DMRs may contribute to the differences in quality between invitro- and invivo-derived embryos.
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Affiliation(s)
- Ya-Han Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Jing-Jing Wang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Pei-Pei Zhang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hai-Sheng Hao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Yun-Wei Pang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hao-Yu Wang
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Wei-Hua Du
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Shan-Jiang Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Wei-Min Ruan
- International Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Ming Lun Street, Kaifeng, Henan, 475004, PR China
| | - Hui-Ying Zou
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Tong Hao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Hua-Bin Zhu
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China
| | - Xue-Ming Zhao
- Embryo Biotechnology and Reproduction Laboratory and the Centre of Domestic Animal Reproduction and Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, No. 2 Yuanmingyuan Western Road, Haidian District, Beijing 100193, PR China; and Corresponding author.
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21
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Zhang C, Tao L, Yue Y, Ren L, Zhang Z, Wang X, Tian J, An L. Mitochondrial transfer from induced pluripotent stem cells rescues developmental potential of in vitro fertilized embryos from aging females†. Biol Reprod 2021; 104:1114-1125. [PMID: 33511405 DOI: 10.1093/biolre/ioab009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 09/09/2020] [Accepted: 01/21/2021] [Indexed: 11/14/2022] Open
Abstract
Conventional heterologous mitochondrial replacement therapy is clinically complicated by "tri-parental" ethical concerns and limited source of healthy donor oocytes or zygotes. Autologous mitochondrial transfer is a promising alternative in rescuing poor oocyte quality and impaired embryo developmental potential associated with mitochondrial disorders, including aging. However, the efficacy and safety of mitochondrial transfer from somatic cells remains largely controversial, and unsatisfying outcomes may be due to distinct mitochondrial state in somatic cells from that in oocytes. Here, we propose a potential strategy for improving in vitro fertilization (IVF) outcomes of aging female patients via mitochondrial transfer from induced pluripotent stem (iPS) cells. Using naturally aging mice and well-established cell lines as models, we found iPS cells and oocytes share similar mitochondrial morphology and functions, whereas the mitochondrial state in differentiated somatic cells is substantially different. By microinjection of isolated mitochondria into fertilized oocytes following IVF, our results indicate that mitochondrial transfer from iPS, but not MEF cells, can rescue the impaired developmental potential of embryos from aging female mice and obtain an enhanced implantation rate following embryo transfer. The beneficial effect may be explained by the fact that mitochondrial transfer from iPS cells not only compensates for aging-associated loss of mtDNA, but also rescues mitochondrial metabolism of subsequent preimplantation embryos. Using mitochondria from iPS cells as the donor, our study not only proposes a promising strategy for improving IVF outcomes of aging females, but also highlights the importance of synchronous mitochondrial state in supporting embryo developmental potential.
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Affiliation(s)
- Chao Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Li Tao
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Yuan Yue
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Likun Ren
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Zhenni Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Xiaodong Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Jianhui Tian
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Lei An
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture and Rural Affairs; College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
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Xiao Z, Donjacour A, Harner R, Simbulan R, Kao CN, Ruggeri E, Liu X, Maltepe E, Rinaudo P. Effect of culture conditions and method of conception on mouse live birth rate. F&S SCIENCE 2020; 1:132-141. [PMID: 35559924 DOI: 10.1016/j.xfss.2020.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To understand in a mouse model whether there are differences in the decidua and live birth rate after transfer of blastocysts generated by in vitro fertilization (IVF) or by superovulation with spontaneous mating into unstimulated recipients. DESIGN Animal experiment. SETTING University-affiliated tertiary hospital. ANIMAL(S) Mice. INTERVENTION(S) IVF embryos were generated and cultured in either Whitten medium (WM, suboptimal conditions) and 20% O2 or KSOM medium with amino acids (KAA, optimal conditions) and 5% O2. The control blastocysts from superovulated mice were flushed out of the uterus 3.5 days (E3.5) after mating (FB group). The resulting blastocysts were transferred to nonsuperovulated CF1 recipients mated to vasectomized males. To understand whether anomalies of decidua were present, the expression of genes involved in decidual development and inflammation was analyzed at E7.5 and E18.5. Similarly, immunostaining was used to evaluate whether the pathways involved in activation of mTORC1 (p-S6) and Cox2 signaling (Cox 2 staining) were altered. MAIN OUTCOME MEASURE(S) Live birth rate, gene expression, and immunostaining of decidua. RESULT(S) Implantation rates at E7.5 were similar, but in vivo embryos (FB groups) were predicted to result in live births 3.3 times higher (2.2-5.1) and 6.6 times higher (4.7-9.3) compared with optimal and suboptimal cultures, respectively. Expression of genes involved in decidual development and inflammation or localization and intensity of staining for p-S6 (mTOR pathway), or inflammation (Cox 2 pathway) were not different among the groups. CONCLUSION(S) The predicted live birth rate was decreased in mouse embryos generated by IVF compared with embryos generated by mating, whereas the implantation rate was not different. Suboptimal culture conditions resulted in lower birth rate. We did not find evidence of abnormalities in decidualization that could explain these findings. These data indicate that blastocysts cultured in stressful conditions are less competent, suggesting that decreasing the number of embryonic manipulations may result in higher live birth rates.
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Affiliation(s)
- Zhuoni Xiao
- Center for Reproductive Medicine, Renmin Hospital of Wuhan University, Wuhan, People's Republic of China; Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California
| | - Annemarie Donjacour
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California
| | - Royce Harner
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California
| | - Rhodel Simbulan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California
| | - Chia-Ning Kao
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California
| | - Elena Ruggeri
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California; San Diego Zoo Global, Escondido, California
| | - Xiaowei Liu
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California
| | - Emin Maltepe
- Department of Pediatrics, University of California, San Francisco, California
| | - Paolo Rinaudo
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California.
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23
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Chen W, Peng Y, Ma X, Kong S, Tan S, Wei Y, Zhao Y, Zhang W, Wang Y, Yan L, Qiao J. Integrated multi-omics reveal epigenomic disturbance of assisted reproductive technologies in human offspring. EBioMedicine 2020; 61:103076. [PMID: 33099088 PMCID: PMC7585147 DOI: 10.1016/j.ebiom.2020.103076] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 09/21/2020] [Accepted: 10/02/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The births of more than 8 million infants have been enabled globally through assisted reproductive technologies (ARTs), including conventional in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) with either fresh embryo transfer (ET) or frozen embryo transfer (FET). However, the safety issue regarding ARTs has drawn growing attention with accumulating observations of rising health risks, and underlying epigenetic mechanisms are largely uncharacterized. METHODS In order to clarify epigenetic risks attributable to ARTs, we profiled DNA methylome on 137 umbilical cord blood (UCB) and 158 parental peripheral blood (PPB) samples, histone modifications (H3K4me3, H3K4me1, H3K27me3 and H3K27ac) on 33 UCB samples and transcriptome on 32 UCB samples by reduced representation bisulfite sequencing (RRBS), chromatin immunoprecipitation sequencing (ChIP-seq), and RNA sequencing (RNA-seq), respectively. FINDINGS We revealed that H3K4me3 was the most profoundly impacted by ICSI and freeze-thawing operation compared with the other three types of histone modifications. IVF-ET seemed to introduce less disturbance into infant epigenomes than IVF-FET or ICSI-ET did. ARTs also decreased the similarity of DNA methylome within twin pairs, and we confirmed that ART per se would introduce conservative changes locally through removal of parental effect. Importantly, those unique and common alterations induced by different ART procedures were highly enriched in the processes related to nervous system, cardiovascular system and glycolipid metabolism etc., which was in accordance with those findings in previous epidemiology studies and suggested some unexplored health issues, including in the immune system and skeletal system. INTERPRETATION Different ART procedures can induce local and functional epigenetic abnormalities, especially for DNA methylation and H3K4me3, providing an epigenetic basis for the potential long-term health risks in ART-conceived offspring. FUNDING SOURCES This study was funded by National Natural Science Foundation of China (81730038; 81521002), National Key Research and Development Program (2018YFC1004000; 2017YFA0103801; 2017YFA0105001) and Strategic Priority Research Program of the Chinese Academy of Sciences (XDA16020703). Yang Wang was supported by Postdoctoral Fellowship of Peking-Tsinghua Center for Life Science.
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Affiliation(s)
- Wei Chen
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yong Peng
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Xinyi Ma
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Siming Kong
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Shuangyan Tan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China
| | - Yuan Wei
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China
| | - Yangyu Zhao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China
| | - Wenxin Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China
| | - Yang Wang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China.
| | - Liying Yan
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China.
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100871, China; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing 100191, China; Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing 100191, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Beijing Advanced Innovation Center for Genomics, Peking University, Beijing 100871, China.
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24
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Garcia-Dominguez X, Juarez JD, Vicente JS, Marco-Jiménez F. Impact of embryo technologies on secondary sex ratio in rabbit. Cryobiology 2020; 97:60-65. [PMID: 33053364 DOI: 10.1016/j.cryobiol.2020.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/01/2020] [Accepted: 10/09/2020] [Indexed: 01/20/2023]
Abstract
Increasing evidence indicates that assisted reproductive technologies (ARTs) disturb skewed sex-ratio and induce sex-dimorphic postnatal effects. Undoubtedly, the combination of multiple ovulation and embryo transfer (MOET) together with the use of vitrification technique (MOVET) is currently being used in breeding programs. However, since the first case of sex skewing reported in 1991, the accumulative and long-term transmission of skewed sex-ratio to future generations has not been thoroughly evaluated. Here we test as MOVET program induce a skewed sex ratio, and we consider skewed sex ratio transmission to future generations. To this end, we first evaluated the F1 generation, demonstrating that a MOVET program causes a severe imbalance skewed secondary sex ratio (SSR) towards male by 12%. This imbalanced persist after a second MOVET program (F2 generation), with an accumulative skewed SSR towards male by 25%. Finally, using a crossbred generation derived from crossing F1 males derived from a MOVET program with naturally-conceived (NC) females, we show that the imbalance skewed SRR persist. Bodyweight comparison between MOVET animals and NC counterparts revealed significant changes at birth, weaning and adulthood. However, there was a significant interaction between F2 MOVET animals and sex, demonstrating an apparent accumulative sex-dimorphic effect. At adulthood, MOVET derived males presented a lower body weight. In conclusion, we show that the MOVET program causes a direct, accumulative and long-term transmission of skewed SSR.
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Affiliation(s)
- Ximo Garcia-Dominguez
- Laboratory of Biotechnology of Reproduction, Institute for Animal Science and Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - Jorge D Juarez
- Laboratory of Biotechnology of Reproduction, Institute for Animal Science and Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - José S Vicente
- Laboratory of Biotechnology of Reproduction, Institute for Animal Science and Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain
| | - Francisco Marco-Jiménez
- Laboratory of Biotechnology of Reproduction, Institute for Animal Science and Technology (ICTA), Universitat Politècnica de València, 46022, Valencia, Spain.
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25
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Fu W, Yue Y, Miao K, Xi G, Zhang C, Wang W, An L, Tian J. Repression of FGF signaling is responsible for Dnmt3b inhibition and impaired de novo DNA methylation during early development of in vitro fertilized embryos. Int J Biol Sci 2020; 16:3085-3099. [PMID: 33061820 PMCID: PMC7545699 DOI: 10.7150/ijbs.51607] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 09/12/2020] [Indexed: 12/30/2022] Open
Abstract
Well-orchestrated epigenetic modifications during early development are essential for embryonic survival and postnatal growth. Erroneous epigenetic modifications due to environmental perturbations such as manipulation and culture of embryos during in vitro fertilization (IVF) are linked to various short- or long-term consequences. Among these, DNA methylation defects are of great concern. Despite the critical role of DNA methylation in determining embryonic development potential, the mechanisms underlying IVF-associated DNA methylation defects, however, remains largely elusive. We reported herein that repression of fibroblast growth factor (FGF) signaling as the main reason for IVF-associated DNA methylation defects. Comparative methylome analysis by postimplantation stage suggested that IVF mouse embryos undergo impaired de novo DNA methylation during implantation stage. Further analyses indicated that Dnmt3b, the main de novo DNA methyltransferase, was consistently inhibited during the transition from the blastocyst to postimplantation stage (Embryonic day 7.5, E7.5). Using blastocysts and embryonic stem cells (ESCs) as the model, we showed repression of FGF signaling is responsible for Dnmt3b inhibition and global hypomethylation during early development, and MEK/ERK-SP1 pathway plays an essential mediating role in FGF signaling-induced transcriptional activation of Dnmt3b. Supplementation of FGF2, which was exclusively produced in the maternal oviduct, into embryo culture medium significantly rescued Dnmt3b inhibition. Our study, using mouse embryos as the model, not only identifies FGF signaling as the main target for correcting IVF-associated epigenetic errors, but also highlights the importance of oviductal paracrine factors in supporting early embryonic development and improving in vitro culture system.
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Affiliation(s)
- Wei Fu
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Yuan Yue
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Kai Miao
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Guangyin Xi
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Chao Zhang
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Wenjuan Wang
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Lei An
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Jianhui Tian
- National Engineering Laboratory for Animal Breeding; Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture; College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing 100193, P. R. China
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26
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Oertelt-Prigione S, Mariman E. The impact of sex differences on genomic research. Int J Biochem Cell Biol 2020; 124:105774. [PMID: 32470538 DOI: 10.1016/j.biocel.2020.105774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 05/15/2020] [Accepted: 05/22/2020] [Indexed: 01/23/2023]
Abstract
Sex and gender differences affect all dimensions of human health ranging from the biological basis of disease to therapeutic access, choice and response. Genomics research has long ignored the role of sex differences as potential modulators and the concept is gaining more attention only recently. In the present review we summarize the current knowledge of the impact of sex differences on genomic and epigenomic research, the potential interaction of genomics and gender and the role of these differences in disease etiopathogenesis. Sex differences can emerge from differences in the sex chromosomes themselves, from their interaction with the genome and from the influence of hormones on genomic processes. The impact of these processes on the incidence of autoimmune and oncologic disease is well documented. The growing field of systems biology, which aims at integrating information from different networks of the human body, could also greatly benefit from this approach. In the present review we summarize the current knowledge and provide recommendations for the future performance of sex-sensitive genomics research.
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Affiliation(s)
- Sabine Oertelt-Prigione
- Department of Primary and Community Care, Radboud Institute of Health Sciences, Radboudumc, Nijmegen, The Netherlands; Institute of Legal and Forensic Medicine, Charité - Universitätsmedizin, Berlin, Germany.
| | - Edwin Mariman
- Department of Human Biology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
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The RING Domain of RING Finger 12 Efficiently Builds Degradative Ubiquitin Chains. J Mol Biol 2020; 432:3790-3801. [PMID: 32416094 DOI: 10.1016/j.jmb.2020.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/30/2020] [Accepted: 05/02/2020] [Indexed: 12/18/2022]
Abstract
RNF12 is a widely expressed ubiquitin E3 ligase that is required for X-chromosome inactivation, regulation of LIM-domain containing transcription factors, and TGF-β signaling. A RING domain at the C terminus of RNF12 is important for its E3 ligase activity, and mutations in the RING domain are associated with X-linked intellectual disability. Here we have characterized ubiquitin transfer by RNF12, and show that the RING domain can bind to, and is active with, ubiquitin conjugating enzymes (E2s) that produce degradative ubiquitin chains. We report the crystal structures of RNF12 in complex with two of these E2 enzymes, as well as with an E2~Ub conjugate in a closed conformation. These structures form a basis for understanding the deleterious effect of a number of disease causing mutations. Comparison of the RNF12 structure with other monomeric RINGs suggests that a loop prior to the core RING domain has a conserved and essential role in stabilization of the active conformation of the bound E2~Ub conjugate. Together these findings provide a framework for better understanding substrate ubiquitylation by RNF12 and the impact of disease causing mutations.
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Garcia-Dominguez X, Vicente JS, Marco-Jiménez F. Developmental Plasticity in Response to Embryo Cryopreservation: The Importance of the Vitrification Device in Rabbits. Animals (Basel) 2020; 10:ani10050804. [PMID: 32384788 PMCID: PMC7278459 DOI: 10.3390/ani10050804] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/29/2020] [Accepted: 05/03/2020] [Indexed: 12/12/2022] Open
Abstract
Simple Summary This study was conducted to demonstrate how embryo manipulation techniques incur phenotypic changes throughout life. This study reports the first evidence demonstrating that the vitrification device used is not a trivial decision, providing valuable information about how the cooling–warming rates during vitrification can be partly responsible of the postnatal phenotypic variations. Abstract In this study, we evaluated the effect of embryo vitrification using two different devices on adulthood phenotype in rabbits. In vitro development, prenatal embryo survival, body weight, growth performance, haematological and biochemical peripheral blood analysis, reproductive performance, and lactation performance traits were compared between the experimental groups. They derived from naturally-conceived embryos (NC), fresh-transferred embryos (FT), vitrified-transferred embryos using mini-straw (VTs), or vitrified-transferred embryos using Cryotop (VTc). Straw-vitrified embryos exhibited lower in vitro developmental rates and in vivo survival rates following embryo transfer compared to its Cryotop-vitrified counterparts. Moreover, the VTs group exhibited higher foetal losses than VTc, FT, and NC groups. Independently of the vitrification device, vitrified-transferred (VT) offspring showed a skewed sex ratio in favour of males, and an increased birth bodyweight. In contrast, postnatal daily growth was diminished in all ART (i.e., FT and VT) animals. In adulthood, significant differences in body weight between all groups was founded—all ART progenies weighed less than NC animals and, within ART, VT animals weighed less than FT. For VT groups, weight at adulthood was higher for the VTs group compared with the VTc group. Peripheral blood parameters ranged between common values. Moreover, no differences were found in the fertility rates between experimental groups. Furthermore, similar pregnancy rates, litter sizes, and the number of liveborns were observed, regardless of the experimental group. However, decreased milk yield occurred for VTc and FT animals compared to VTs and NC animals. A similar trend was observed for the milk composition of dry matter and fat. Concordantly, reduced body weight was found for suckling kits in the VTc and FT groups compared to VTs and NC animals. Our findings reveal that developmental changes after the embryo vitrification procedure could be associated with an exhibition of the embryonic developmental plasticity. Moreover, to our best knowledge, this study reports the first evidence demonstrating that the vitrification device used is not a trivial decision, providing valuable information about how the cooling–warming rates during vitrification can be partly responsible of the postnatal phenotypic variations.
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Yang Q, Fu W, Wang Y, Miao K, Zhao H, Wang R, Guo M, Wang Z, Tian J, An L. The proteome of IVF-induced aberrant embryo-maternal crosstalk by implantation stage in ewes. J Anim Sci Biotechnol 2020; 11:7. [PMID: 31956410 PMCID: PMC6958772 DOI: 10.1186/s40104-019-0405-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 11/26/2019] [Indexed: 01/17/2023] Open
Abstract
Background Implantation failure limits the success of in vitro fertilization and embryo transfer (IVF-ET). Well-organized embryo-maternal crosstalk is essential for successful implantation. Previous studies mainly focused on the aberrant development of in vitro fertilized (IVF) embryos. In contrast, the mechanism of IVF-induced aberrant embryo-maternal crosstalk is not well defined. Results In the present study, using ewes as the model, we profiled the proteome that features aberrant IVF embryo-maternal crosstalk following IVF-ET. By comparing in vivo (IVO) and IVF conceptuses, as well as matched endometrial caruncular (C) and intercaruncular (IC) areas, we filtered out 207, 295, and 403 differentially expressed proteins (DEPs) in each comparison. Proteome functional analysis showed that the IVF conceptuses were characterized by the increased abundance of energy metabolism and proliferation-related proteins, and the decreased abundance of methyl metabolism-related proteins. In addition, IVF endometrial C areas showed the decreased abundance of endometrial remodeling and redox homeostasis-related proteins; while IC areas displayed the aberrant abundance of protein homeostasis and extracellular matrix (ECM) interaction-related proteins. Based on these observations, we propose a model depicting the disrupted embryo-maternal crosstalk following IVF-ET: Aberrant energy metabolism and redox homeostasis of IVF embryos, might lead to an aberrant endometrial response to conceptus-derived pregnancy signals, thus impairing maternal receptivity. In turn, the suboptimal uterine environment might stimulate a compensation effect of the IVF conceptuses, which was revealed as enhanced energy metabolism and over-proliferation. Conclusion Systematic proteomic profiling provides insights to understand the mechanisms that underlie the aberrant IVF embryo-maternal crosstalk. This might be helpful to develop practical strategies to prevent implantation failure following IVF-ET.
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Affiliation(s)
- Qianying Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Wei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Yue Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Kai Miao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Haichao Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Rui Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Min Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Zhilong Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Jianhui Tian
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
| | - Lei An
- Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, 100193 China
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30
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Fukuda A, Motosugi N, Ando M, Kimura M, Umezawa A, Akutsu H. Imprinted X-chromosome inactivation impacts primitive endoderm differentiation in mouse blastocysts. FEBS Lett 2019; 594:913-923. [PMID: 31721177 DOI: 10.1002/1873-3468.13676] [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: 07/19/2019] [Revised: 10/29/2019] [Accepted: 11/03/2019] [Indexed: 11/05/2022]
Abstract
Epigenetic and transcriptome alterations are essential for lineage specification, represented by imprinted X-chromosome inactivation (iXCI) in female mouse preimplantation embryos. However, how various factors affect transcriptome states and lineage commitment remains unclear. We found that in vitro culture duration strongly influences transcriptional variation compared to iXCI loss. Single-cell analysis of the inner cell mass (ICM) for major transcription and epigenomic factors revealed that sex-specific differences in expression are diminished by loss of iXCI in the primitive endoderm (PrE) but not in the epiblast. Females had a higher proportion of ICM compared to that in males, and PrE development was affected by iXCI states in female embryos. Our findings provide insight into sex differences and iXCI function in lineage specification.
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Affiliation(s)
- Atsushi Fukuda
- Medical Division, Institute of Innovative Science and Technology, Tokai University, Isehara, Japan.,Center for Regenerative Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Nami Motosugi
- Medical Division, Institute of Innovative Science and Technology, Tokai University, Isehara, Japan
| | - Mikiko Ando
- Medical Division, Institute of Innovative Science and Technology, Tokai University, Isehara, Japan
| | - Minoru Kimura
- Institute of Medical Sciences, Tokai University, Isehara, Japan
| | - Akihiro Umezawa
- Center for Regenerative Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Hidenori Akutsu
- Center for Regenerative Medicine, National Center for Child Health and Development, Tokyo, Japan
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31
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Wang Z, Yan W. Inflammation induced by faulty replication during embryonic development causes skewed sex ratio. Biol Reprod 2019; 101:259-261. [PMID: 31189185 DOI: 10.1093/biolre/ioz104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 06/11/2019] [Indexed: 12/19/2022] Open
Affiliation(s)
- Zhuqing Wang
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA
| | - Wei Yan
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA.,Department of Obstetrics and Gynecology, University of Nevada, Reno School of Medicine, Reno, Nevada, USA.,Department of Biology, University of Nevada, Reno, Reno, Nevada, USA
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32
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Choufani S, Turinsky AL, Melamed N, Greenblatt E, Brudno M, Bérard A, Fraser WD, Weksberg R, Trasler J, Monnier P. Impact of assisted reproduction, infertility, sex and paternal factors on the placental DNA methylome. Hum Mol Genet 2019; 28:372-385. [PMID: 30239726 DOI: 10.1093/hmg/ddy321] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/29/2018] [Indexed: 12/28/2022] Open
Abstract
Children conceived using Assisted Reproductive Technologies (ART) have a higher incidence of growth and birth defects, attributable in part to epigenetic perturbations. Both ART and germline defects associated with parental infertility could interfere with epigenetic reprogramming events in germ cells or early embryos. Mouse models indicate that the placenta is more susceptible to the induction of epigenetic abnormalities than the embryo, and thus the placental methylome may provide a sensitive indicator of 'at risk' conceptuses. Our goal was to use genome-wide profiling to examine the extent of epigenetic abnormalities in matched placentas from an ART/infertility group and control singleton pregnancies (n = 44/group) from a human prospective longitudinal birth cohort, the Design, Develop, Discover (3D) Study. Principal component analysis revealed a group of ART outliers. The ART outlier group was enriched for females and a subset of placentas showing loss of methylation of several imprinted genes including GNAS, SGCE, KCNQT1OT1 and BLCAP/NNAT. Within the ART group, placentas from pregnancies conceived with in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) showed distinct epigenetic profiles as compared to those conceived with less invasive procedures (ovulation induction, intrauterine insemination). Male factor infertility and paternal age further differentiated the IVF/ICSI group, suggesting an interaction of infertility and techniques in perturbing the placental epigenome. Together, the results suggest that the human placenta is sensitive to the induction of epigenetic defects by ART and/or infertility, and we stress the importance of considering both sex and paternal factors and that some but not all ART conceptuses will be susceptible.
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Affiliation(s)
- Sanaa Choufani
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Andrei L Turinsky
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada.,Centre for Computational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nir Melamed
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynaecology Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Ellen Greenblatt
- Mount Sinai Centre for Fertility and Reproductive Health, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Michael Brudno
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada.,Centre for Computational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Computer Science, University of Toronto, Toronto, Ontario, Canada
| | - Anick Bérard
- Research Unit on Medications and Pregnancy, Research Centre, CHU Sainte-Justine, and Faculty of Pharmacy, University of Montreal, Montreal, Quebec, Canada
| | - William D Fraser
- Department of Obstetrics and Gynecology, Université de Sherbrooke and Centre de Recherche du CHUS, Sherbrooke, Quebec, Canada
| | - Rosanna Weksberg
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada.,Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Pediatrics and Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Jacquetta Trasler
- Departments of Pediatrics, Human Genetics and Pharmacology & Therapeutics, and The Montreal Children's Hospital and Research Institute of the McGill University Health Centre
| | - Patricia Monnier
- MUHC Reproductive Centre, Department of Obstetrics and Gynecology, Royal Victoria Hospital and Research Institute of McGill University Health Centre, Quebec, Canada
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33
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He H, Jing S, Lu CF, Tan YQ, Luo KL, Zhang SP, Gong F, Lu GX, Lin G. Neonatal outcomes of live births after blastocyst biopsy in preimplantation genetic testing cycles: a follow-up of 1,721 children. Fertil Steril 2019; 112:82-88. [DOI: 10.1016/j.fertnstert.2019.03.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/14/2019] [Accepted: 03/04/2019] [Indexed: 10/26/2022]
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34
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Litzky JF, Marsit CJ. Epigenetically regulated imprinted gene expression associated with IVF and infertility: possible influence of prenatal stress and depression. J Assist Reprod Genet 2019; 36:1299-1313. [PMID: 31127477 PMCID: PMC6642239 DOI: 10.1007/s10815-019-01483-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 05/09/2019] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Despite the growing body of research implying an impact of in vitro fertilization (IVF) on imprinted genes and epigenetics, few studies have examined the effects of underlying subfertility or prenatal stress on epigenetics, particularly in terms of their role in determining infant birthweights. Both subfertility and prenatal stressors have been found to impact epigenetics and may be confounding the effect of IVF on epigenetics and imprinted genes. Like IVF, both of these exposures-infertility and prenatal stressors-have been associated with lower infant birthweights. The placenta, and specifically epigenetically regulated placental imprinted genes, provides an ideal but understudied mechanism for evaluating the relationship between underlying genetics, environmental exposures, and birthweight. METHODS AND RESULTS In this review, we discuss the impacts of IVF and infertility on birthweight, epigenetic mechanisms and genomic imprinting, and the role of these mechanisms in the IVF population and discuss the role and importance of the placenta in infant development. We then highlight recent work on the relationships between infertility, IVF, and prenatal stressors in terms of placental imprinting. CONCLUSIONS In combination, the studies discussed, as well as two recent projects of our own on placental imprinted gene expression, suggest that lower birthweights in IVF infants are secondary to a combination of exposures including the infertility and prenatal stress that couples undergoing IVF are experiencing. The work highlighted herein emphasizes the need for appropriate control populations that take infertility into account and also for consideration of prenatal psychosocial stressors as confounders and causes of variation in IVF infant outcomes.
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Affiliation(s)
- Julia F Litzky
- Department of Epidemiology, Geisel School of Medicine at Dartmouth College, Hanover, NH, 03755, USA
| | - Carmen J Marsit
- Department of Environmental Health, Rollins School of Public Health, Emory University, 1518 Clifton Road, CNR 202, Atlanta, GA, 30322, USA.
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35
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Kalisch-Smith JI, Steane SE, Simmons DG, Pantaleon M, Anderson ST, Akison LK, Wlodek ME, Moritz KM. Periconceptional alcohol exposure causes female-specific perturbations to trophoblast differentiation and placental formation in the rat. Development 2019; 146:dev172205. [PMID: 31182432 DOI: 10.1242/dev.172205] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 04/18/2019] [Indexed: 12/26/2022]
Abstract
The development of pathologies during pregnancy, including pre-eclampsia, hypertension and fetal growth restriction (FGR), often originates from poor functioning of the placenta. In vivo models of maternal stressors, such as nutrient deficiency, and placental insufficiency often focus on inadequate growth of the fetus and placenta in late gestation. These studies rarely investigate the origins of poor placental formation in early gestation, including those affecting the pre-implantation embryo and/or the uterine environment. The current study characterises the impact on blastocyst, uterine and placental outcomes in a rat model of periconceptional alcohol exposure, in which 12.5% ethanol is administered in a liquid diet from 4 days before until 4 days after conception. We show female-specific effects on trophoblast differentiation, embryo-uterine communication, and formation of the placental vasculature, resulting in markedly reduced placental volume at embryonic day 15. Both sexes exhibited reduced trophectoderm pluripotency and global hypermethylation, suggestive of inappropriate epigenetic reprogramming. Furthermore, evidence of reduced placental nutrient exchange and reduced pre-implantation maternal plasma choline levels offers significant mechanistic insight into the origins of FGR in this model.
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Affiliation(s)
- Jacinta I Kalisch-Smith
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Sarah E Steane
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - David G Simmons
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Marie Pantaleon
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Stephen T Anderson
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Lisa K Akison
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
- Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia
| | - Mary E Wlodek
- Department of Physiology, School of Biomedical Sciences, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Karen M Moritz
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, St Lucia, QLD 4072, Australia
- Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia
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36
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Zhou Q, Wang T, Leng L, Zheng W, Huang J, Fang F, Yang L, Chen F, Lin G, Wang WJ, Kristiansen K. Single-cell RNA-seq reveals distinct dynamic behavior of sex chromosomes during early human embryogenesis. Mol Reprod Dev 2019; 86:871-882. [PMID: 31094050 DOI: 10.1002/mrd.23162] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/21/2019] [Accepted: 04/11/2019] [Indexed: 12/20/2022]
Abstract
Several animal and human studies have demonstrated that sex affects kinetics and metabolism during early embryo development. However, the mechanism governing these differences at the molecular level before the expression of the sex-determining gene SRY is unknown. We performed a systematic profiling of gene expression comparing male and female embryos using available single-cell RNA-sequencing data of 1607 individual cells from 99 human preimplantation embryos, covering development stages from 4-cell to late blastocyst. We observed consistent chromosome-wide transcription of autosomes, whereas expression from sex chromosomes exhibits significant differences after embryonic genome activation (EGA). Activation of the Y chromosome is initiated by expression of two genes, RPS4Y1 and DDX3Y, whereas the X chromosome is widely activated, with both copies in females being activated after EGA. In contrast to the stable activation of the Y chromosome, expression of X-linked genes in females declines at the late blastocyst stage, especially in trophectoderm cells, revealing a rapid process of dosage compensation. This dynamic behavior results in a dosage imbalance between male and female embryos, which influences genes involved in cell cycle, protein translation and metabolism. Our results reveal the dynamics of sex chromosomes expression and silencing during early embryogenesis. Studying sex differences during human embryogenesis, as well as understanding the process of X chromosome inactivation and their effects on the sex bias development of in vitro fertilized embryos, will expand the capabilities of assisted reproductive technology and possibly improve the treatment of infertility and enhance reproductive health.
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Affiliation(s)
- Qing Zhou
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Taifu Wang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China.,BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, China
| | - Lizhi Leng
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Reproductive and Stem Cells Engineering, Ministry of Health, Changsha, China
| | - Wei Zheng
- Reproductive & Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Jinrong Huang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Fang Fang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Ling Yang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Fang Chen
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Ge Lin
- Institute of Reproductive and Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, China.,Key Laboratory of Reproductive and Stem Cells Engineering, Ministry of Health, Changsha, China.,Reproductive & Genetic Hospital of CITIC-Xiangya, Changsha, China.,National Engineering and Research Center of Human Stem Cell, Changsha, China
| | - Wen-Jing Wang
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China
| | - Karsten Kristiansen
- BGI-Shenzhen, Shenzhen, China.,China National GeneBank, BGI-Shenzhen, Shenzhen, China.,Laboratory of Genomics and Molecular Biomedicine, Department of Biology, University of Copenhagen, Copenhagen, Denmark
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37
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Duan JE, Shi W, Jue NK, Jiang Z, Kuo L, O'Neill R, Wolf E, Dong H, Zheng X, Chen J, Tian XC. Dosage Compensation of the X Chromosomes in Bovine Germline, Early Embryos, and Somatic Tissues. Genome Biol Evol 2019; 11:242-252. [PMID: 30566637 PMCID: PMC6354180 DOI: 10.1093/gbe/evy270] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2018] [Indexed: 12/15/2022] Open
Abstract
Dosage compensation of the mammalian X chromosome (X) was proposed by Susumu Ohno as a mechanism wherein the inactivation of one X in females would lead to doubling the expression of the other. This would resolve the dosage imbalance between eutherian females (XX) versus male (XY) and between a single active X versus autosome pairs (A). Expression ratio of X- and A-linked genes has been relatively well studied in humans and mice, despite controversial results over the existence of upregulation of X-linked genes. Here we report the first comprehensive test of Ohno’s hypothesis in bovine preattachment embryos, germline, and somatic tissues. Overall an incomplete dosage compensation (0.5 < X:A < 1) of expressed genes and an excess X dosage compensation (X:A > 1) of ubiquitously expressed “dosage-sensitive” genes were seen. No significant differences in X:A ratios were observed between bovine female and male somatic tissues, further supporting Ohno’s hypothesis. Interestingly, preimplantation embryos manifested a unique pattern of X dosage compensation dynamics. Specifically, X dosage decreased after fertilization, indicating that the sperm brings in an inactive X to the matured oocyte. Subsequently, the activation of the bovine embryonic genome enhanced expression of X-linked genes and increased the X dosage. As a result, an excess compensation was exhibited from the 8-cell stage to the compact morula stage. The X dosage peaked at the 16-cell stage and stabilized after the blastocyst stage. Together, our findings confirm Ohno’s hypothesis of X dosage compensation in the bovine and extend it by showing incomplete and over-compensation for expressed and “dosage-sensitive” genes, respectively.
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Affiliation(s)
| | - Wei Shi
- Department of Statistics, University of Connecticut, Storrs, CT
| | - Nathaniel K Jue
- School of Natural Sciences, California State University, Monterey Bay, CA
| | - Zongliang Jiang
- School of Animal Science, Louisiana State University, Agricultural Center, Baton Rouge, LA
| | - Lynn Kuo
- Department of Statistics, University of Connecticut, Storrs, CT
| | - Rachel O'Neill
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT
| | - Eckhard Wolf
- Gene Center and Department of Biochemistry, Ludwig-Maximilians-Universität Muünchen, Germany
| | - Hong Dong
- Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, Xinjiang, P.R. China
| | - Xinbao Zheng
- Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, Xinjiang, P.R. China
| | - Jingbo Chen
- Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, Xinjiang, P.R. China
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38
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Yu HT, Yang Q, Sun XX, Chen GW, Qian NS, Cai RZ, Guo HB, Wang CF. Association of birth defects with the mode of assisted reproductive technology in a Chinese data-linkage cohort. Fertil Steril 2018; 109:849-856. [PMID: 29778384 DOI: 10.1016/j.fertnstert.2018.01.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 01/09/2018] [Accepted: 01/09/2018] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the impact of assisted reproductive technology (ART) on the offspring of Chinese population. DESIGN Retrospective, data-linkage cohort. SETTING Not applicable. PATIENT(S) Live births resulting from ART or natural conception. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Birth defects coded according to ICD-10. RESULT(S) Births after ART were more likely to be female and multiple births, especially after intracytoplasmic sperm injection (ICSI). ART was associated with a significantly increased risk of birth defects, especially, among singleton births, a significantly increased risk in fresh-embryo cycles after in vitro fertilization (IVF) and frozen-embryo cycles after ICSI. Associations between ART and multiple defects, between ART and gastrointestinal malformation, genital organs malformation, and musculoskeletal malformation among singleton births, and between ART and cardiac septa malformation among multiple births were observed. CONCLUSION(S) This study suggests that ART increases the risk of birth defects. Subgroup analyses indicate higher risk for both fresh and frozen embryos, although nonsignificantly for frozen embryos after IVF and for fresh embryos were presented with low power. Larger sample size research is needed to clarify effects from fresh- or frozen-embryo cycles after IVF and ICSI.
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Affiliation(s)
- Hui-Ting Yu
- Vital statistical department, Institute of Health Information, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, People's Republic of China
| | - Qing Yang
- Vital statistical department, Institute of Health Information, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, People's Republic of China
| | - Xiao-Xi Sun
- Shanghai Ji Ai Genetics and IVF Institute, Shanghai, People's Republic of China
| | - Guo-Wu Chen
- Shanghai Ji Ai Genetics and IVF Institute, Shanghai, People's Republic of China
| | - Nai-Si Qian
- Vital statistical department, Institute of Health Information, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, People's Republic of China
| | - Ren-Zhi Cai
- Vital statistical department, Institute of Health Information, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, People's Republic of China
| | - Han-Bing Guo
- International Union against Tuberculosis and Lung Disease, Shanghai, People's Republic of China
| | - Chun-Fang Wang
- Vital statistical department, Institute of Health Information, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, People's Republic of China.
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39
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Yang L, Song L, Liu X, Bai L, Li G. KDM6A and KDM6B play contrasting roles in nuclear transfer embryos revealed by MERVL reporter system. EMBO Rep 2018; 19:embr.201846240. [PMID: 30389724 PMCID: PMC6280793 DOI: 10.15252/embr.201846240] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 09/20/2018] [Accepted: 10/09/2018] [Indexed: 01/02/2023] Open
Abstract
Despite the success of animal cloning by somatic cell nuclear transfer (SCNT) in many species, the method is limited by its low efficiency. After zygotic genome activation (ZGA) during mouse development, a large number of endogenous retroviruses (ERVs) are expressed, including the murine endogenous retrovirus‐L (MuERVL/MERVL). In this study, we generate a series of MERVL reporter mouse strains to detect the ZGA event in embryos. We show that the majority of SCNT embryos do not undergo ZGA, and H3K27me3 prevents SCNT reprogramming. Overexpression of the H3K27me3‐specific demethylase KDM6A, but not of KDM6B, improves the efficiency of SCNT. Conversely, knockdown of KDM6B not only facilitates ZGA, but also impedes ectopic Xist expression in SCNT reprogramming. Furthermore, knockdown of KDM6B increases the rate of SCNT‐derived embryonic stem cells from Duchenne muscular dystrophy embryos. These results not only provide insight into the mechanisms underlying failures of SCNT, but also may extend the applications of SCNT.
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Affiliation(s)
- Lei Yang
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, China
| | - Lishuang Song
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, China.,Research Center for Mammalian Reproductive Biology and Biotechnology, College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Xuefei Liu
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, China
| | - Lige Bai
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, China.,Research Center for Mammalian Reproductive Biology and Biotechnology, College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Guangpeng Li
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia University, Hohhot, China .,Research Center for Mammalian Reproductive Biology and Biotechnology, College of Life Sciences, Inner Mongolia University, Hohhot, China
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40
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Abstract
Genetic mosaicism arises when a zygote harbors two or more distinct genotypes, typically due to de novo, somatic mutation during embryogenesis. The clinical manifestations largely depend on the differentiation status of the mutated cell; earlier mutations target pluripotent cells and generate more widespread disease affecting multiple organ systems. If gonadal tissue is spared-as in somatic genomic mosaicism-the mutation and its effects are limited to the proband, whereas mosaicism also affecting the gametes, such as germline or gonosomal mosaicism, is transmissible. Mosaicism is easily appreciated in cutaneous disorders, as phenotypically distinct mutant cells often give rise to lesions in patterns determined by the affected cell type. Genetic investigation of cutaneous mosaic disorders has identified pathways central to disease pathogenesis, revealing novel therapeutic targets. In this review, we discuss examples of cutaneous mosaicism, approaches to gene discovery in these disorders, and insights into molecular pathobiology that have potential for clinical translation.
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Affiliation(s)
- Young H Lim
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut 06520, USA; .,Departments of Pathology and Genetics, Yale University School of Medicine, New Haven, Connecticut 06520, USA
| | - Zoe Moscato
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut 06520, USA;
| | - Keith A Choate
- Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut 06520, USA; .,Departments of Pathology and Genetics, Yale University School of Medicine, New Haven, Connecticut 06520, USA
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41
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Inoue A, Jiang L, Lu F, Zhang Y. Genomic imprinting of Xist by maternal H3K27me3. Genes Dev 2017; 31:1927-1932. [PMID: 29089420 PMCID: PMC5710138 DOI: 10.1101/gad.304113.117] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 09/28/2017] [Indexed: 11/25/2022]
Abstract
In this study, Inoue et al. investigated the mechanism underlying Xist imprinting in female mammals. They demonstrate that the Xist locus is coated with a broad H3K27me3 domain that is established during oocyte growth and persists through preimplantation development in mice, thus identifying maternal H3K27me3 as the imprinting mark of Xist. Maternal imprinting at the Xist gene is essential to achieve paternal allele-specific imprinted X-chromosome inactivation (XCI) in female mammals. However, the mechanism underlying Xist imprinting is unclear. Here we show that the Xist locus is coated with a broad H3K27me3 domain that is established during oocyte growth and persists through preimplantation development in mice. Loss of maternal H3K27me3 induces maternal Xist expression and maternal XCI in preimplantation embryos. Our study thus identifies maternal H3K27me3 as the imprinting mark of Xist.
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Affiliation(s)
- Azusa Inoue
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Lan Jiang
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Falong Lu
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Yi Zhang
- Howard Hughes Medical Institute, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Division of Hematology/Oncology, Department of Pediatrics, Boston Children's Hospital, Boston, Massachusetts 02115, USA.,Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.,Harvard Stem Cell Institute, Boston, Massachusetts 02115, USA
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42
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Kalisch-Smith JI, Moritz KM. Detrimental effects of alcohol exposure around conception: putative mechanisms. Biochem Cell Biol 2017; 96:107-116. [PMID: 29112458 DOI: 10.1139/bcb-2017-0133] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In western countries, alcohol consumption is widespread in women of reproductive age, and in binge quantities. These countries also continue to have high incidences of unplanned pregnancies, with women often reported to cease drinking after discovering their pregnancy. This suggests the early embryo may be highly exposed to the detrimental effects of alcohol during the periconception period. The periconception and pre-implantation windows, which include maturation of the oocyte, fertilisation, and morphogenesis of the pre-implantation embryo, are particularly sensitive times of development. Within the oviduct and uterus, the embryo is exposed to a unique nutritional environment to facilitate its development and establish de-novo expression of the genome through epigenetic reprogramming. Alcohol has wide-ranging effects on cellular stress, as well as hormonal, and nutrient signalling pathways, which may affect the development and metabolism of the early embryo. In this review, we summarise the adverse developmental outcomes of early exposure to alcohol (prior to implantation in animal models) and discuss the potential mechanisms for these outcomes that may occur within the protected oviductal and uterine environment. One interesting candidate is reduced retinoic acid synthesis, as it is implicated in the control of epigenetic reprogramming and cell lineage commitment, processes that have adverse consequences for the formation of the placenta, and subsequently, fetal programming.
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Affiliation(s)
- J I Kalisch-Smith
- a School of Biomedical Sciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - K M Moritz
- a School of Biomedical Sciences, The University of Queensland, St. Lucia, QLD 4072, Australia.,b Child Health Research Centre, The University of Queensland, South Brisbane, QLD 4101, Australia
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43
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Rangel-Negrín A, Coyohua-Fuentes A, Canales-Espinosa D, Chavira-Ramírez DR, Dias PAD. Maternal glucocorticoid levels affect sex allocation in black howler monkeys. J Zool (1987) 2017. [DOI: 10.1111/jzo.12503] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Rangel-Negrín
- Primate Behavioral Ecology Lab; Instituto de Neuroetología; Universidad Veracruzana; Xalapa Veracruz México
| | - A. Coyohua-Fuentes
- Primate Behavioral Ecology Lab; Instituto de Neuroetología; Universidad Veracruzana; Xalapa Veracruz México
| | - D. Canales-Espinosa
- Primate Behavioral Ecology Lab; Instituto de Neuroetología; Universidad Veracruzana; Xalapa Veracruz México
| | - D. R. Chavira-Ramírez
- Belisario Domínguez Sección XVI; Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”; Tlalpan México
| | - P. A. D. Dias
- Primate Behavioral Ecology Lab; Instituto de Neuroetología; Universidad Veracruzana; Xalapa Veracruz México
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44
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Kalisch-Smith JI, Simmons DG, Pantaleon M, Moritz KM. Sex differences in rat placental development: from pre-implantation to late gestation. Biol Sex Differ 2017; 8:17. [PMID: 28523122 PMCID: PMC5434533 DOI: 10.1186/s13293-017-0138-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 05/08/2017] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND A male fetus is suggested to be more susceptible to in utero and birth complications. This may be due in part to altered morphology or function of the XY placenta. We hypothesised that sexual dimorphism begins at the blastocyst stage with sex differences in the progenitor trophectoderm (TE) and its derived trophoblast lineages, as these cells populate the majority of cell types within the placenta. We investigated sex-specific differences in cell allocation in the pre-implantation embryo and further characterised growth and gene expression of the placental compartments from the early stages of the definitive placenta through to late gestation. METHODS Naturally mated Sprague Dawley dams were used to collect blastocysts at embryonic day (E) 5 to characterise cell allocation; total, TE, and inner cell mass (ICM), and differentiation to downstream trophoblast cell types. Placental tissues were collected at E13, E15, and E20 to characterise volumes of placental compartments, and sex-specific gene expression profiles. RESULTS Pre-implantation embryos showed no sex differences in cell allocation (total, TE and ICM) or early trophoblast differentiation, assessed by outgrowth area, number and ploidy of trophoblasts and P-TGCs, and expression of markers of trophoblast stem cell state or differentiation. Whilst no changes in placental structures were found in the immature E13 placenta, the definitive E15 placenta from female fetuses had reduced labyrinthine volume, fetal and maternal blood space volume, as well as fetal blood space surface area, when compared to placentas from males. No differences between the sexes in labyrinth trophoblast volume or interhaemal membrane thickness were found. By E20 these sex-specific placental differences were no longer present, but female fetuses weighed less than their male counterparts. Coupled with expression profiles from E13 and E15 placental samples may suggest a developmental delay in placental differentiation. CONCLUSIONS Although there were no overt differences in blastocyst cell number or early placental development, reduced growth of the female labyrinth in mid gestation is likely to contribute to lower fetal weight in females at E20. These data suggest sex differences in fetal growth trajectories are due at least in part, to differences in placenta growth.
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Affiliation(s)
- J I Kalisch-Smith
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4072 Australia
| | - D G Simmons
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4072 Australia
| | - M Pantaleon
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4072 Australia
| | - K M Moritz
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD 4072 Australia.,Centre for Child Health Research, The University of Queensland, South Brisbane, QLD 4101 Australia
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45
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Kalisch-Smith JI, Simmons DG, Dickinson H, Moritz KM. Review: Sexual dimorphism in the formation, function and adaptation of the placenta. Placenta 2016; 54:10-16. [PMID: 27979377 DOI: 10.1016/j.placenta.2016.12.008] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/01/2016] [Accepted: 12/05/2016] [Indexed: 01/08/2023]
Abstract
Exposure of the embryo or fetus to perturbations in utero can result in intrauterine growth restriction, a primary risk factor for the development of adult disease. However, despite similar exposures, males and females often have altered disease susceptibility or progression from different stages of life. Fetal growth is largely mediated by the placenta, which, like the fetus is genetically XX or XY. The placenta and its associated trophoblast lineages originate from the trophectoderm (TE) of the early embryo. Rodent models (rat, mouse, spiny mouse), have been used extensively to examine placenta development and these have demonstrated the growth trajectory of the placenta in females is generally slower compared to males, and also shows altered adaptive responses to stressful environments. These placental adaptations are likely to depend on the type of stressor, duration, severity and the window of exposure during development. Here we describe the divergent developmental pathways between the male and female placenta contributing to altered differentiation of the TE derived trophoblast subtypes, placental growth, and formation of the placental architecture. Our focus is primarily genetic or environmental perturbations in rodent models which show altered placental responsiveness between sexes. We suggest that perturbations during early placental development may have greater impact on viability and growth of the female fetus whilst those occurring later in gestation may preferentially affect the male fetus. This may be of great relevance to human pregnancies which result from assisted reproductive technologies or complications such as pre-eclampsia and diabetes.
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Affiliation(s)
- J I Kalisch-Smith
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - D G Simmons
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - H Dickinson
- The Ritchie Centre, Hudson Institute of Medical Research and Department of Obstetrics and Gynaecology, Monash University, Australia
| | - K M Moritz
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia; Centre for Children's Health Research, The University of Queensland, South Brisbane, QLD, 4101, Australia.
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46
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Cameron EZ, Edwards AM, Parsley LM. Developmental sexual dimorphism and the evolution of mechanisms for adjustment of sex ratios in mammals. Ann N Y Acad Sci 2016; 1389:147-163. [PMID: 27862006 DOI: 10.1111/nyas.13288] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 09/28/2016] [Accepted: 10/05/2016] [Indexed: 12/15/2022]
Abstract
Sex allocation theory predicts biased offspring sex ratios in relation to local conditions if they would maximize parental lifetime reproductive return. In mammals, the extent of the birth sex bias is often unpredictable and inconsistent, leading some to question its evolutionary significance. For facultative adjustment of sex ratios to occur, males and females would need to be detectably different from an early developmental stage, but classic sexual dimorphism arises from hormonal influences after gonadal development. Recent advances in our understanding of early, pregonadal sexual dimorphism, however, indicate high levels of dimorphism in gene expression, caused by chromosomal rather than hormonal differences. Here, we discuss how such dimorphism would interact with and link previously hypothesized mechanisms for sex-ratio adjustment. These differences between males and females are sufficient for offspring sex both to be detectable to parents and to provide selectable cues for biasing sex ratios from the earliest stages. We suggest ways in which future research could use the advances in our understanding of sexually dimorphic developmental physiology to test the evolutionary significance of sex allocation in mammals. Such an approach would advance our understanding of sex allocation and could be applied to other taxa.
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Affiliation(s)
- Elissa Z Cameron
- School of Biological Sciences, University of Tasmania, Hobart, Australia.,School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
| | - Amy M Edwards
- School of Biological Sciences, University of Tasmania, Hobart, Australia
| | - Laura M Parsley
- School of Biological Sciences, University of Tasmania, Hobart, Australia
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47
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Federici F, Magaraki A, Wassenaar E, van Veen-Buurman CJH, van de Werken C, Baart EB, Laven JSE, Grootegoed JA, Gribnau J, Baarends WM. Round Spermatid Injection Rescues Female Lethality of a Paternally Inherited Xist Deletion in Mouse. PLoS Genet 2016; 12:e1006358. [PMID: 27716834 PMCID: PMC5065126 DOI: 10.1371/journal.pgen.1006358] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/09/2016] [Indexed: 01/03/2023] Open
Abstract
In mouse female preimplantation embryos, the paternal X chromosome (Xp) is silenced by imprinted X chromosome inactivation (iXCI). This requires production of the noncoding Xist RNA in cis, from the Xp. The Xist locus on the maternally inherited X chromosome (Xm) is refractory to activation due to the presence of an imprint. Paternal inheritance of an Xist deletion (XpΔXist) is embryonic lethal to female embryos, due to iXCI abolishment. Here, we circumvented the histone-to-protamine and protamine-to-histone transitions of the paternal genome, by fertilization of oocytes via injection of round spermatids (ROSI). This did not affect initiation of XCI in wild type female embryos. Surprisingly, ROSI using ΔXist round spermatids allowed survival of female embryos. This was accompanied by activation of the intact maternal Xist gene, initiated with delayed kinetics, around the morula stage, resulting in Xm silencing. Maternal Xist gene activation was not observed in ROSI-derived males. In addition, no Xist expression was detected in male and female morulas that developed from oocytes fertilized with mature ΔXist sperm. Finally, the expression of the X-encoded XCI-activator RNF12 was enhanced in both male (wild type) and female (wild type as well as XpΔXist) ROSI derived embryos, compared to in vivo fertilized embryos. Thus, high RNF12 levels may contribute to the specific activation of maternal Xist in XpΔXist female ROSI embryos, but upregulation of additional Xp derived factors and/or the specific epigenetic constitution of the round spermatid-derived Xp are expected to be more critical. These results illustrate the profound impact of a dysregulated paternal epigenome on embryo development, and we propose that mouse ROSI can be used as a model to study the effects of intergenerational inheritance of epigenetic marks.
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Affiliation(s)
- Federica Federici
- Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Aristea Magaraki
- Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Evelyne Wassenaar
- Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Catherina J. H. van Veen-Buurman
- Division of Reproductive Medicine, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Christine van de Werken
- Division of Reproductive Medicine, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Esther B Baart
- Division of Reproductive Medicine, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Joop S. E. Laven
- Division of Reproductive Medicine, Department of Obstetrics and Gynaecology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J Anton Grootegoed
- Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Joost Gribnau
- Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Willy M Baarends
- Department of Developmental Biology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
- * E-mail:
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48
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Siqueira LGB, Hansen PJ. Sex differences in response of the bovine embryo to colony-stimulating factor 2. Reproduction 2016; 152:645-654. [PMID: 27601717 PMCID: PMC5097130 DOI: 10.1530/rep-16-0336] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 09/05/2016] [Indexed: 01/09/2023]
Abstract
We tested whether gene expression of the bovine morula is modified by CSF2 in a sex-dependent manner and if sex determines the effect of CSF2 on competence of embryos to become blastocysts. Embryos were produced in vitro using X- or Y-sorted semen and treated at Day 5 of culture with 10 ng/mL bovine CSF2 or control. In experiment 1, morulae were collected at Day 6 and biological replicates (n = 8) were evaluated for transcript abundance of 90 genes by RT-qPCR using the Fluidigm Delta Gene assay. Expression of more than one-third (33 of 90) of genes examined was affected by sex. The effect of CSF2 on gene expression was modified by sex (P < 0.05) for five genes (DDX3Y/DDX3X-like, NANOG, MYF6, POU5F1 and RIPK3) and tended (P < 0.10) to be modified by sex for five other genes (DAPK1, HOXA5, PPP2R3A, PTEN and TNFSF8). In experiment 2, embryos were treated at Day 5 with control or CSF2 and blastocysts were collected at Day 7 for immunolabeling to determine the number of inner cell mass (ICM) and trophectoderm (TE) cells. CSF2 increased the percent of putative zygotes that became blastocysts for females, but did not affect the development of males. There was no effect of CSF2 or interaction of CSF2 with sex on the total number of blastomeres in blastocysts or in the number of inner cell mass or trophectoderm cells. In conclusion, CSF2 exerted divergent responses on gene expression and development of female and male embryos. These results are evidence of sexually dimorphic responses of the preimplantation embryo to this embryokine.
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Affiliation(s)
- Luiz G B Siqueira
- Department of Animal SciencesD.H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville, Florida, USA.,Embrapa Gado de LeiteJuiz de Fora, MG, Brazil
| | - Peter J Hansen
- Department of Animal SciencesD.H. Barron Reproductive and Perinatal Biology Research Program, and Genetics Institute, University of Florida, Gainesville, Florida, USA
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