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Lamacova L, Jansova D, Jiang Z, Dvoran M, Aleshkina D, Iyyappan R, Jindrova A, Fan HY, Jiao Y, Susor A. CPEB3 Maintains Developmental Competence of the Oocyte. Cells 2024; 13:850. [PMID: 38786074 PMCID: PMC11119423 DOI: 10.3390/cells13100850] [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: 04/09/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024] Open
Abstract
Mammalian oocyte development depends on the temporally controlled translation of maternal transcripts, particularly in the coordination of meiotic and early embryonic development when transcription has ceased. The translation of mRNA is regulated by various RNA-binding proteins. We show that the absence of cytoplasmic polyadenylation element-binding protein 3 (CPEB3) negatively affects female reproductive fitness. CPEB3-depleted oocytes undergo meiosis normally but experience early embryonic arrest due to a disrupted transcriptome, leading to aberrant protein expression and the subsequent failure of embryonic transcription initiation. We found that CPEB3 stabilizes a subset of mRNAs with a significantly longer 3'UTR that is enriched in its distal region with cytoplasmic polyadenylation elements. Overall, our results suggest that CPEB3 is an important maternal factor that regulates the stability and translation of a subclass of mRNAs that are essential for the initiation of embryonic transcription and thus for embryonic development.
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Affiliation(s)
- Lucie Lamacova
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, IAPG CAS, Rumburska 89, 277 21 Libechov, Czech Republic
| | - Denisa Jansova
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, IAPG CAS, Rumburska 89, 277 21 Libechov, Czech Republic
| | - Zongliang Jiang
- Department of Animal Sciences, Genetics Institute, University of Florida, Gainesville, FL 32610, USA
| | - Michal Dvoran
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, IAPG CAS, Rumburska 89, 277 21 Libechov, Czech Republic
| | - Daria Aleshkina
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, IAPG CAS, Rumburska 89, 277 21 Libechov, Czech Republic
| | - Rajan Iyyappan
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, IAPG CAS, Rumburska 89, 277 21 Libechov, Czech Republic
| | - Anna Jindrova
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, IAPG CAS, Rumburska 89, 277 21 Libechov, Czech Republic
| | - Heng-Yu Fan
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Yuxuan Jiao
- Life Sciences Institute, Zhejiang University, Hangzhou 310058, China
| | - Andrej Susor
- Laboratory of Biochemistry and Molecular Biology of Germ Cells, IAPG CAS, Rumburska 89, 277 21 Libechov, Czech Republic
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2
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Nie J, Xiao P, Xiong Q, Liang X, Zhao X. Smart seq2 revealed distinct molecular responses during in vitro porcine oocyte maturation before or after the addition of mogroside V. Reprod Domest Anim 2024; 59:e14595. [PMID: 38773768 DOI: 10.1111/rda.14595] [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: 01/31/2024] [Revised: 04/10/2024] [Accepted: 04/28/2024] [Indexed: 05/24/2024]
Abstract
Oocyte maturation involves both nuclear and cytoplasmic maturation. Mogroside V (MV) has been shown to enhance nuclear maturation, mitochondrial content, and developmental potential of porcine oocyte during in vitro maturation (IVM). However, the impact of MV on cytoplasmic maturation and its underlying mechanisms are not understood. This study aimed to assess the effect of MV on cytoplasmic maturation. Germinal vesicle (GV) oocytes treated with MV exhibited a noticeable increase in cortical granules (CGs) formation. Additionally, MV enhanced the expression of NNAT and improved glucose uptake in mature oocytes. Further insights were gained through Smart-seq2 analysis of RNA isolated from 100 oocytes. A total of 11,274 and 11,185 transcripts were identified in oocytes treated with and without MV, respectively. Among quantified genes, 438 differentially expressed genes (DEGs) were identified for further analysis. Gene Ontology (GO) enrichment analysis indicated that these DEGs were primarily involved in DNA repair regulation, cellular response to DNA damage, intracellular components, and organelles. Furthermore, the DEGs were significantly enriched in three KEGG pathways: fatty acid synthesis, pyruvate metabolism, and WNT signalling. To validate the results, lipid droplets (LD) and triglyceride (TG) were examined. MV led to an increase in the accumulation of LD and TG production in mature oocytes. These findings suggest that MV enhances cytoplasmic maturation by promoting lipid droplet synthesis. Overall, this study provides valuable insights into the mechanisms through which MV improves oocyte quality during IVM. The results have significant implications for research in livestock reproduction and offer guidance for future studies in this field.
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Affiliation(s)
- Junyu Nie
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, China
- Guangxi Key Laboratory of Animal Breeding & Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
- College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Peng Xiao
- Guangxi Key Laboratory of Animal Breeding & Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
- College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Qianqian Xiong
- Department of Neurology, Fengcheng People's Hospital, Fengcheng, Jiangxi, China
| | - Xingwei Liang
- Guangxi Key Laboratory of Animal Breeding & Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
- College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Xiuling Zhao
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, China
- Guangxi Key Laboratory of Animal Breeding & Disease Control and Prevention, Guangxi University, Nanning, Guangxi, China
- College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
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3
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Ly J, Blengini CS, Cady SL, Schindler K, Cheeseman IM. A conserved germline-specific Dsn1 alternative splice isoform supports oocyte and embryo development. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.17.589883. [PMID: 38659852 PMCID: PMC11042369 DOI: 10.1101/2024.04.17.589883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Alternative mRNA splicing can generate distinct protein isoforms to allow for the differential control of cell processes across cell types. However, alternative splice isoforms that differentially modulate distinct cell division programs have remained elusive. Here, we demonstrate that mammalian germ cells express an alternate mRNA splice isoform for the kinetochore component, DSN1, a subunit of the MIS12 complex that links the centromeres to spindle microtubules during chromosome segregation. This germline DSN1 isoform bypasses the requirement for Aurora kinase phosphorylation for its centromere localization due to the absence of a key regulatory region allowing DSN1 to display persistent centromere localization. Expression of the germline DSN1 isoform in somatic cells results in constitutive kinetochore localization, chromosome segregation errors, and growth defects, providing an explanation for its tight cell type-specific expression. Reciprocally, precisely eliminating expression of the germline DSN1 splice isoform in mouse models disrupts oocyte maturation and early embryonic divisions coupled with a reduction in fertility. Together, this work identifies a germline-specific splice isoform for a chromosome segregation component and implicates its role in mammalian fertility.
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Affiliation(s)
- Jimmy Ly
- Whitehead Institute for Biomedical Research, Cambridge, United States
- Department of Biology, Massachusetts Institute of Technology, Cambridge, United States
| | - Cecilia S. Blengini
- Department of Genetics, Rutgers University, Piscataway, New Jersey, United States
| | - Sarah L. Cady
- Whitehead Institute for Biomedical Research, Cambridge, United States
- Department of Biology, Massachusetts Institute of Technology, Cambridge, United States
| | - Karen Schindler
- Department of Genetics, Rutgers University, Piscataway, New Jersey, United States
| | - Iain M. Cheeseman
- Whitehead Institute for Biomedical Research, Cambridge, United States
- Department of Biology, Massachusetts Institute of Technology, Cambridge, United States
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4
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Tong KY, Liu WW, Sun LW, Liu DY, Xiang YZ, Li C, Chai LW, Chen K, Huang GN, Li JY. Novel PLCZ1 mutation caused polyspermy during in vitro fertilization. Asian J Androl 2024:00129336-990000000-00168. [PMID: 38445955 DOI: 10.4103/aja202376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 12/22/2023] [Indexed: 03/07/2024] Open
Abstract
ABSTRACT Failure of oocyte activation, including polyspermy and defects in pronuclear (PN) formation, triggers early embryonic developmental arrest. Many studies have shown that phospholipase C zeta 1 ( PLCZ1 ) mutations cause failure of PN formation following intracytoplasmic sperm injection (ICSI); however, whether PLCZ1 mutation is associated with polyspermy during in vitro fertilization (IVF) remains unknown. Whole-exome sequencing (WES) was performed to identify candidate mutations in couples with primary infertility. Sanger sequencing was used to validate the mutations. Multiple PLCZ1 -mutated sperm were injected into human and mouse oocytes to explore whether PN formation was induced. Assisted oocyte activation (AOA) after ICSI was performed to overcome the failure of oocyte activation. We identified three PLCZ1 mutations in three patients who experienced polyspermy during IVF cycles, including a novel missense mutation c.1154C>T, p.R385Q. PN formation failure was observed during the ICSI cycle. However, injection of multiple PLCZ1 -mutated sperm induced PN formation, suggesting that the Ca 2+ oscillations induced by the sperm exceeded the necessary threshold for PN formation. AOA after ICSI enabled normal fertilization, and all patients achieved successful pregnancies. These findings expand the mutational spectrum of PLCZ1 and suggest an important role for PLCZ1 in terms of blocking polyspermy. Furthermore, this study may benefit genetic diagnoses in cases of abnormal fertilization and provide potential appropriate therapeutic measures for these patients with sperm-derived polyspermy.
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Affiliation(s)
- Ke-Ya Tong
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Wei-Wei Liu
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Li-Wei Sun
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Dong-Yun Liu
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Ye-Zhou Xiang
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Chong Li
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Lu-Wei Chai
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Ke Chen
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Guo-Ning Huang
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
| | - Jing-Yu Li
- Chongqing Key Laboratory of Human Embryo Engineering, Center for Reproductive Medicine, Women and Children's Hospital of Chongqing Medical University, Chongqing 400012, China
- Chongqing Clinical Research Center for Reproductive Medicine, Center for Reproductive Medicine, Chongqing Health Center for Women and Children, Chongqing 400012, China
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5
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Sananmuang T, Puthier D, Nguyen C, Chokeshaiusaha K. Differential transcript usage across mammalian oocytes at the germinal vesicle and metaphase II stages. Theriogenology 2024; 215:1-9. [PMID: 37995439 DOI: 10.1016/j.theriogenology.2023.11.016] [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: 08/22/2023] [Revised: 11/11/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023]
Abstract
Ongoing progress in mRNA-Sequencing technologies has significantly contributed to the refinement of assisted reproductive technologies. However, the prior investigations have predominantly concentrated on alterations in overall gene expression levels, thereby leaving a considerable gap in our understanding of the influence of transcript isoform expression on fundamental cellular mechanisms of oocytes. Given the efficacy of differential transcript usage (DTU) analysis to address such knowledge, we conducted comprehensive DTU analysis utilizing mRNA-Seq datasets of germinal vesicle (GV) and metaphase II (MII) oocytes across six mammalian species from the SRA database, including cow, donkey, horse, human, mouse, and pig. To further illuminate the roles of these genes, we also conducted a rigorous Gene Ontology (GO) term enrichment analysis. While the DTU analysis of each species exhibited several genes with alterations in their transcript isoform usage, referred to as DTU genes, this study focused on only ten cross-species DTU genes sharing among a minimum of five distinct species (FDR≤0.05). These cross-species DTU genes were as follows: ABCF1, CDC6, CFAP36, CNOT10, DNM3, IWS1, NBN, NDEL1, RAD50 and ZCCHC17. GO term enrichment analysis unveiled the alignment of these cross-species DTU gene functions with RNA and cell-cycle control mechanisms across diverse mammalian species, thereby suggesting their vital roles during oocyte maturation. Further exploration of the transcript isoforms of these genes hence bore the potential to uncover novel transcript isoform markers for future reproductive technologies in both human and animal contexts.
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Affiliation(s)
- Thanida Sananmuang
- Rajamangala University of Technology Tawan-OK, Faculty of Veterinary Medicine, Chonburi, Thailand
| | - Denis Puthier
- Aix-Marseille Université, INSERM UMR 1090, TAGC, Marseille, France
| | - Catherine Nguyen
- Aix-Marseille Université, INSERM UMR 1090, TAGC, Marseille, France
| | - Kaj Chokeshaiusaha
- Rajamangala University of Technology Tawan-OK, Faculty of Veterinary Medicine, Chonburi, Thailand.
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6
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Jiang Y, Gao X, Liu Y, Yan X, Shi H, Zhao R, Chen ZJ, Gao F, Zhao H, Zhao S. Cellular atlases of ovarian microenvironment alterations by diet and genetically-induced obesity. SCIENCE CHINA. LIFE SCIENCES 2024; 67:51-66. [PMID: 37721638 DOI: 10.1007/s11427-023-2360-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/09/2023] [Indexed: 09/19/2023]
Abstract
Obesity, which can arise from genetic or environmental factors, has been shown to cause serious damages to the reproductive system. The ovary, as one of the primary regulators of female fertility, is a complex organ comprised of heterogeneous cell types that work together to maintain a normal ovarian microenvironment (OME). Despite its importance, the effect of obesity on the entire ovary remains poorly documented. In this study, we performed ovary single-cell and nanoscale spatial RNA sequencing to investigate how the OME changed under different kinds of obesity, including high-fat diet (HFD) induced obesity and Leptin ablation induced obesity (OB). Our results demonstrate that OB, but not HFD, dramatically altered the proportion of ovarian granulosa cells, theca-interstitial cells, luteal cells, and endothelial cells. Furthermore, based on the spatial dynamics of follicular development, we defined four subpopulations of granulosa cell and found that obesity drastically disrupted the differentiation of mural granulosa cells from small to large antral follicles. Functionally, HFD enhanced follicle-stimulating hormone (FSH) sensitivity and hormone conversion, while OB caused decreased sensitivity, inadequate steroid hormone conversion, and impaired follicular development. These differences can be explained by the differential expression pattern of the transcription factor Foxo1. Overall, our study provides a powerful and high-resolution resource for profiling obesity-induced OME and offers insights into the diverse effects of obesity on female reproductive disorders.
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Affiliation(s)
- Yonghui Jiang
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Xueying Gao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
- Center for reproductive medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200127, China
| | - Yue Liu
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
| | - Xueqi Yan
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
| | - Huangcong Shi
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
| | - Rusong Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China
- The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, 215000, China
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China.
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, 250012, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China.
- Center for reproductive medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China.
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200127, China.
| | - Fei Gao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, 100101, China.
| | - Han Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China.
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.
| | - Shigang Zhao
- Center for Reproductive Medicine, Shandong University, Jinan, 250012, China.
- Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.
- Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250012, China.
- Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, 250012, China.
- National Research Center of Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.
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7
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Ye M, Shan Y, Lu B, Luo H, Li B, Zhang Y, Wang Z, Guo Y, Ouyang L, Gu J, Xiong Z, Zhang T. Creating a semi-opened micro-cavity ovary through sacrificial microspheres as an in vitro model for discovering the potential effect of ovarian toxic agents. Bioact Mater 2023; 26:216-230. [PMID: 36936809 PMCID: PMC10017366 DOI: 10.1016/j.bioactmat.2023.02.029] [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: 11/30/2022] [Revised: 02/26/2023] [Accepted: 02/26/2023] [Indexed: 03/09/2023] Open
Abstract
The bio-engineered ovary is an essential technology for treating female infertility. Especially the development of relevant in vitro models could be a critical step in a drug study. Herein, we develop a semi-opened culturing system (SOCS) strategy that maintains a 3D structure of follicles during the culture. Based on the SOCS, we further developed micro-cavity ovary (MCO) with mouse follicles by the microsphere-templated technique, where sacrificial gelatin microspheres were mixed with photo-crosslinkable gelatin methacryloyl (GelMA) to engineer a micro-cavity niche for follicle growth. The semi-opened MCO could support the follicle growing to the antral stage, secreting hormones, and ovulating cumulus-oocyte complex out of the MCO without extra manipulation. The MCO-ovulated oocyte exhibits a highly similar transcriptome to the in vivo counterpart (correlation of 0.97) and can be fertilized. Moreover, we found that a high ROS level could affect the cumulus expansion, which may result in anovulation disorder. The damage could be rescued by melatonin, but the end of cumulus expansion was 3h earlier than anticipation, validating that MCO has the potential for investigating ovarian toxic agents in vitro. We provide a novel approach for building an in vitro ovarian model to recapitulate ovarian functions and test chemical toxicity, suggesting it has the potential for clinical research in the future.
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Affiliation(s)
- Min Ye
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Yiran Shan
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Department of Automation, Tsinghua University, Beijing, 100084, China
| | - Bingchuan Lu
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Hao Luo
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Binhan Li
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Yanmei Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Zixuan Wang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Yuzhi Guo
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Liliang Ouyang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
| | - Jin Gu
- MOE Key Laboratory of Bioinformatics, BNRIST Bioinformatics Division, Department of Automation, Tsinghua University, Beijing, 100084, China
| | - Zhuo Xiong
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
- Corresponding author. Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Ting Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, 100084, China
- Biomanufacturing and Engineering Living Systems, Innovation International Talents Base (111 Base), Beijing, 100084, China
- Corresponding author. Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
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8
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Gassler J, Kobayashi W, Gáspár I, Ruangroengkulrith S, Mohanan A, Gómez Hernández L, Kravchenko P, Kümmecke M, Lalic A, Rifel N, Ashburn RJ, Zaczek M, Vallot A, Cuenca Rico L, Ladstätter S, Tachibana K. Zygotic genome activation by the totipotency pioneer factor Nr5a2. Science 2022; 378:1305-1315. [PMID: 36423263 DOI: 10.1126/science.abn7478] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Life begins with a switch in genetic control from the maternal to the embryonic genome during zygotic genome activation (ZGA). Despite its importance, the essential regulators of ZGA remain largely unknown in mammals. On the basis of de novo motif searches, we identified the orphan nuclear receptor Nr5a2 as a key activator of major ZGA in mouse two-cell embryos. Nr5a2 is required for progression beyond the two-cell stage. It binds to its motif within SINE B1/Alu retrotransposable elements found in cis-regulatory regions of ZGA genes. Chemical inhibition suggests that 72% of ZGA genes are regulated by Nr5a2 and potentially other orphan nuclear receptors. Nr5a2 promotes chromatin accessibility during ZGA and binds nucleosomal DNA in vitro. We conclude that Nr5a2 is an essential pioneer factor that regulates ZGA.
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Affiliation(s)
- Johanna Gassler
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany.,Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Wataru Kobayashi
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Imre Gáspár
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | | | - Adarsh Mohanan
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Laura Gómez Hernández
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Pavel Kravchenko
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Maximilian Kümmecke
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Aleksandar Lalic
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Nikita Rifel
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Robert John Ashburn
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany
| | - Maciej Zaczek
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Antoine Vallot
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Laura Cuenca Rico
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Sabrina Ladstätter
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
| | - Kikuë Tachibana
- Department of Totipotency, Max Planck Institute of Biochemistry (MPIB), Munich, Germany.,Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), Vienna, Austria
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9
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Liu C, Wang M, Yao H, Cui M, Gong X, Wang L, Sui C, Zhang H. Inhibition of oocyte maturation by follicular extracellular vesicles of non-hyperandrogenic PCOS patients requiring IVF. J Clin Endocrinol Metab 2022; 108:1394-1404. [PMID: 36527699 DOI: 10.1210/clinem/dgac733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
CONTEXT Polycystic ovarian syndrome (PCOS) is one of the most common diseases that contribute to subfertility. Recent evidence showed that oocytes of women with PCOS matured in vitro away from the follicular fluid presented better potentials, whereas the reason remained unclear. OBJECTIVE To investigate whether follicular extracellular vesicles (EVs) of PCOS patients interfere with the quality of oocytes. METHODS Follicular EVs of women with PCOS (PCOS-EVs) and control women (CTRL-EVs) were isolated and determined using western blotting, nanoparticle tracking analysis, and transmission electron microscopy. The two types of EVs were co-cultured with murine germinal vesicle oocytes, respectively. Fluorescence labeled EVs were used to visualize internalization by oocytes. After co-culture, oocyte maturation rates were calculated. Mitochondria distribution and reactive oxygen species (ROS) level were detected in the different groups. Spindle morphology was evaluated using immunofluorescence. Moreover, the expression of catalase (CAT), glutathione synthetase (GSS), and superoxide dismutase (SOD) was determined in the oocytes. RESULTS Both PCOS-EVs and CTRL-EVs are bilayered vesicles, approximately 100-150 nm in size, and enriched in EV-associating protein markers. EVs were internalized by oocytes within one hour. Oocyte maturation rate decreased significantly in the PCOS-EV group compared with the CTRL-EV group; whereas the abnormal mitochondria distribution rate and abnormal spindle rate were significantly increased in the PCOS-EV group. Moreover, PCOS-EVs increased the ROS level and the expression of CAT, GSS, and SOD in the oocytes. CONCLUSIONS PCOS-EVs interfered with oocyte mitochondria and spindles and inhibited oocyte maturation. Moreover, oxidative stress induced by PCOS-EVs might be a potential cause.
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Affiliation(s)
- Chang Liu
- Reproductive Medicine Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, People's Republic of China
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
| | - Meng Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
| | - Haixia Yao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
- Shangrao People's Hospital, Shangrao, China
| | - Mengge Cui
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
| | - Xueqi Gong
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
| | - Lan Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
| | - Cong Sui
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
| | - Hanwang Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
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10
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Barberet J, Ducreux B, Bruno C, Guilleman M, Simonot R, Lieury N, Guilloteau A, Bourc’his D, Fauque P. Comparison of oocyte vitrification using a semi-automated or a manual closed system in human siblings: survival and transcriptomic analyses. J Ovarian Res 2022; 15:128. [PMID: 36464714 PMCID: PMC9720994 DOI: 10.1186/s13048-022-01064-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/21/2022] [Indexed: 12/07/2022] Open
Abstract
BACKGROUND Indications of oocyte vitrification increased substantially over the last decades for clinical and ethical reasons. A semi-automated vitrification system was recently developed making each act of vitrification reproducible. In this study, we evaluated the efficiency of the semi-automated technique of oocyte vitrification by survival rate, morphometric assessment and resistance to empty micro-injection gesture as compared with a manual method. Additionally, we intended to evaluate transcriptomic consequences of both techniques using single-cell RNA-seq technology. RESULTS Post-warming survival rate, oocyte surfaces and resistance to empty micro-injection were comparable between semi-automated and manual vitrification groups. Both oocyte vitrification techniques showed limited differences in the resulting transcriptomic profile of sibling oocytes since only 5 differentially expressed genes were identified. Additionally, there was no difference in median transcript integrity number or percentage of mitochondrial DNA between the two groups. However, a total of 108 genes were differentially expressed between fresh and vitrified oocytes (FDR < 0.05) and showed over-represented of genes related to important cellular process. CONCLUSIONS Our results provide reassurance about the influence of semi-automation as compared with the manual vitrification method. Concerning oocyte vitrification itself, no tight common transcriptomic signature associated has been observed across studies. TRIAL REGISTRATION NCT03570073.
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Affiliation(s)
- Julie Barberet
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Bastien Ducreux
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France
| | - Céline Bruno
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Magali Guilleman
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Raymond Simonot
- grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Nicolas Lieury
- grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France
| | - Adrien Guilloteau
- grid.31151.37USMR, Dijon Bourgogne University Hospital, F-21000 Dijon, France
| | - Déborah Bourc’his
- Institut Curie, PSL University, CNRS, INSERM, 26 rue d’Ulm, F-75248 Paris, France
| | - Patricia Fauque
- grid.493090.70000 0004 4910 6615Université Bourgogne Franche-Comté - Equipe Génétique des Anomalies du Développement (GAD) INSERM UMR1231, 2 Rue Angélique Ducoudray, F-21000 Dijon, France ,grid.31151.37CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction – CECOS, 14 rue Gaffarel, F-21000 Dijon, France ,grid.31151.37Laboratoire de Biologie de la Reproduction, CHU Dijon, BP 77908, 14, rue Gaffarel, 21079 Dijon Cedex, France
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11
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Paulino LRFM, de Assis EIT, Azevedo VAN, Silva BR, da Cunha EV, Silva JRV. Why Is It So Difficult To Have Competent Oocytes from In vitro Cultured Preantral Follicles? Reprod Sci 2022; 29:3321-3334. [PMID: 35084715 DOI: 10.1007/s43032-021-00840-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/28/2021] [Indexed: 12/14/2022]
Abstract
The developmental competence of oocytes is acquired gradually during follicular development, mainly through oocyte accumulation of RNA molecules and proteins that will be used during fertilization and early embryonic development. Several attempts to develop in vitro culture systems to support preantral follicle development up to maturation are reported in the literature, but oocyte competence has not yet been achieved in human and domestic animals. The difficulties to have fertilizable oocytes are related to thousands of mRNAs and proteins that need to be synthesized, long-term duration of follicular development, size of preovulatory follicles, composition of in vitro culture medium, and the need of multi-step culture systems. The development of a culture system that maintains bidirectional communication between the oocyte and granulosa cells and that meets the metabolic demands of each stage of follicle growth is the key to sustain an extended culture period. This review discusses the physiological and molecular mechanisms that determine acquisition of oocyte competence in vitro, like oocyte transcriptional activity, follicle and oocyte sizes, and length and regulation of follicular development in murine, human, and domestic animal species. The state of art of in vitro follicular development and the challenges to have complete follicular development in vitro are also highlighted.
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Affiliation(s)
- Laís R F M Paulino
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Comandante Maurocélio Rocha Ponte 100, Sobral, CE, CEP 62041-040, Brazil
| | - Ernando I T de Assis
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Comandante Maurocélio Rocha Ponte 100, Sobral, CE, CEP 62041-040, Brazil
| | - Venância A N Azevedo
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Comandante Maurocélio Rocha Ponte 100, Sobral, CE, CEP 62041-040, Brazil
| | - Bianca R Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Comandante Maurocélio Rocha Ponte 100, Sobral, CE, CEP 62041-040, Brazil
| | - Ellen V da Cunha
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Comandante Maurocélio Rocha Ponte 100, Sobral, CE, CEP 62041-040, Brazil
| | - José R V Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Comandante Maurocélio Rocha Ponte 100, Sobral, CE, CEP 62041-040, Brazil.
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12
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Qin Y, Feng S, Zheng M, Liu X, Zhao J, Zhao Q, Ye J, Mi J, Zhong Y. Progesterone Promotes In Vitro Maturation of Domestic Dog Oocytes Leading to Successful Live Births. Life (Basel) 2022; 12:life12111778. [PMID: 36362933 PMCID: PMC9698205 DOI: 10.3390/life12111778] [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: 10/08/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Gene-edited dogs are promising models for biomedical research because they have hundreds of genetic diseases that are similar to humans. A common method for producing gene-edited dogs is assisted reproductive technology (ART) using in vivo oocytes or embryos, but it is much more inefficient and has a higher cost. ART for dogs has lagged mostly because of the lack of an efficient in vitro maturation system. Because early maturation of canine oocytes occurs in follicles with extremely high concentrations of progesterone (P4), we hypothesize that P4 has an important role during maturation. In this study, we obtained ovaries of female dogs and collected cumulus−oocyte complexes, which were cultured in vitro in microdrops containing different P4 concentrations (0, 10, 40, 100 or 200 µg/mL). We found that 40 µg/mL P4 produced the highest oocyte maturation rate (29.7% ± 7.1%, p < 0.05). We also evaluated the quality of in vitro matured oocytes by in vitro fertilization and single-cell RNA sequencing, and both indicated an improvement in oocyte developmental potential. In conclusion, we successfully obtained the first live dogs using in vitro matured oocytes by adding P4 to optimize the in vitro maturation system of canine oocytes, and established a new and low-cost method to produce dogs via in vitro maturation and in vitro fertilization.
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Affiliation(s)
- Yumin Qin
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shenjiong Feng
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Min Zheng
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Xiaojuan Liu
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Jianping Zhao
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Qintao Zhao
- Nanchang Police-dog Base of the Ministry of Public Security of PRC, Nanchang 330100, China
| | - Junhua Ye
- Nanchang Police-dog Base of the Ministry of Public Security of PRC, Nanchang 330100, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
| | - Jidong Mi
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
| | - Yougang Zhong
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
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13
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Zhao H, Dong Y, Zhang Y, Wu X, Zhang X, Liang Y, Li Y, Zeng F, Shi J, Zhou R, Hong L, Cai G, Wu Z, Li Z. Supplementation of SDF1 during Pig Oocyte In Vitro Maturation Improves Subsequent Embryo Development. Molecules 2022; 27:molecules27206830. [PMID: 36296422 PMCID: PMC9609306 DOI: 10.3390/molecules27206830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
The quality of in vitro matured oocytes is inferior to that of in vivo matured oocytes, which translates to low developmental capacity of embryos derived from in vitro matured oocytes. The developmental potential of in vitro matured oocytes is usually impaired due to oxidative stress. Stromal cell-derived factor-l (SDF1) can reduce oxidative stress and inhibit apoptosis. The aim of this study was to investigate the effects of SDF1 supplementation during pig oocyte in vitro maturation (IVM) on subsequent embryo development, and to explore the acting mechanisms of SDF1 in pig oocytes. We found that the IVM medium containing 20 ng/mL SDF1 improved the maturation rate of pig oocytes, as well as the cleavage rate and blastocyst rate of embryos generated by somatic cell nuclear transfer, in vitro fertilization, and parthenogenesis. Supplementation of 20 ng/mL SDF1 during IVM decreased the ROS level, increased the mitochondrial membrane potential, and altered the expression of apoptosis-related genes in the pig oocytes. The porcine oocyte transcriptomic data showed that SDF1 addition during IVM altered the expression of genes enriched in the purine metabolism and TNF signaling pathways. SDF1 supplementation during pig oocyte IVM also upregulated the mRNA and protein levels of YY1 and TET1, two critical factors for oocyte development. In conclusion, supplementation of SDF1 during pig oocyte IVM reduces oxidative stress, changes expression of genes involved in regulating apoptosis and oocyte growth, and enhances the ability of in vitro matured pig oocytes to support subsequent embryo development. Our findings provide a theoretical basis and a new method for improving the developmental potential of pig in vitro matured oocytes.
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Affiliation(s)
- Huaxing Zhao
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Yazheng Dong
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Yuxing Zhang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Xiao Wu
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Xianjun Zhang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Yalin Liang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Yanan Li
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Fang Zeng
- College of Marine Science, South China Agricultural University, Guangzhou 510030, China
| | - Junsong Shi
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527400, China
| | - Rong Zhou
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527400, China
| | - Linjun Hong
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Gengyuan Cai
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
| | - Zhenfang Wu
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510030, China
- Correspondence: (Z.W.); (Z.L.)
| | - Zicong Li
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510030, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510030, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510030, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510030, China
- Correspondence: (Z.W.); (Z.L.)
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14
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Wang X, Zhao N, Wang T, Du S, Liu Q, Li J. Transcriptome Analysis Provides Insights into Copulation, Fertilization, and Gestation in Sebastes schlegelii. Genes (Basel) 2022; 13:genes13101812. [PMID: 36292697 PMCID: PMC9601582 DOI: 10.3390/genes13101812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022] Open
Abstract
Among the viviparous marine teleosts of China, the black rockfish (Sebastes schlegelii Hilgendorf) is one of the most economically important. In addition to copulation and internal fertilization, it features lengthy sperm storage in the female ovary as well as a high rate of abortion. A network of gene regulation is necessary for these processes. To elucidate the mechanisms of copulation, fertilization, and gestation, it is essential to determine the genetic basis of viviparous teleost oogenesis and embryogenesis. In this study, we analyzed the transcriptome of the ovary during different developmental phases to investigate the dynamic changes that occur. We constructed 24 ovary transcriptomes. In order to investigate the regulation of embryogenesis, differentially expressed genes (DEGs) with specific expression patterns were subjected to gene ontology annotation, pathway analyses, and weighted gene co-expression network analysis (WGCNA). The up-regulated genes were significantly enriched in focal adhesion, regulation of the actin cytoskeleton, Wnt, and ECM-receptor interaction signaling pathways. As a result of our study, we provide omics evidence for copulation, fertilization, and gestation in viviparous marine teleosts. Decoding the S. schlegelii gene regulation network, as well as providing new insights into embryogenesis, is highly valuable to researchers in the marine teleost reproduction sciences.
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Affiliation(s)
- Xueying Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Ning Zhao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tao Wang
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Qingdao Agricultural University, Qingdao 266237, China
| | - Shuran Du
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Qingdao Agricultural University, Qingdao 266237, China
| | - Qinghua Liu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Jun Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Correspondence: ; Tel./Fax: +86-532-82898718
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15
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Bogoch Y, Jamieson-Lucy A, Vejnar CE, Levy K, Giraldez AJ, Mullins MC, Elkouby YM. Stage Specific Transcriptomic Analysis and Database for Zebrafish Oogenesis. Front Cell Dev Biol 2022; 10:826892. [PMID: 35733854 PMCID: PMC9207522 DOI: 10.3389/fcell.2022.826892] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/11/2022] [Indexed: 01/21/2023] Open
Abstract
Oogenesis produces functional eggs and is essential for fertility, embryonic development, and reproduction. The zebrafish ovary is an excellent model to study oogenesis in vertebrates, and recent studies have identified multiple regulators in oocyte development through forward genetic screens, as well as reverse genetics by CRISPR mutagenesis. However, many developmental steps in oogenesis, in zebrafish and other species, remain poorly understood, and their underlying mechanisms are unknown. Here, we take a genomic approach to systematically uncover biological activities throughout oogenesis. We performed transcriptomic analysis on five stages of oogenesis, from the onset of oocyte differentiation through Stage III, which precedes oocyte maturation. These transcriptomes revealed thousands of differentially expressed genes across stages of oogenesis. We analyzed trends of gene expression dynamics along oogenesis, as well as their expression in pair-wise comparisons between stages. We determined their functionally enriched terms, identifying uniquely characteristic biological activities in each stage. These data identified two prominent developmental phases in oocyte differentiation and traced the accumulation of maternally deposited embryonic regulator transcripts in the developing oocyte. Our analysis provides the first molecular description for oogenesis in zebrafish, which we deposit online as a resource for the community. Further, the presence of multiple gene paralogs in zebrafish, and the exclusive curation by many bioinformatic tools of the single paralogs present in humans, challenge zebrafish genomic analyses. We offer an approach for converting zebrafish gene name nomenclature to the human nomenclature for supporting genomic analyses generally in zebrafish. Altogether, our work provides a valuable resource as a first step to uncover oogenesis mechanisms and candidate regulators and track accumulating transcripts of maternal regulators of embryonic development.
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Affiliation(s)
- Yoel Bogoch
- Department of Developmental Biology and Cancer Research, Hebrew University of Jerusalem Faculty of Medicine, Jerusalem, Israel
- Institute for Biomedical Research, Israel-Canada, Jerusalem, Israel
| | - Allison Jamieson-Lucy
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | | | - Karine Levy
- Department of Developmental Biology and Cancer Research, Hebrew University of Jerusalem Faculty of Medicine, Jerusalem, Israel
- Institute for Biomedical Research, Israel-Canada, Jerusalem, Israel
| | | | - Mary C. Mullins
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, United States
| | - Yaniv M. Elkouby
- Department of Developmental Biology and Cancer Research, Hebrew University of Jerusalem Faculty of Medicine, Jerusalem, Israel
- Institute for Biomedical Research, Israel-Canada, Jerusalem, Israel
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16
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Sinha N, Driscoll CS, Qi W, Huang B, Roy S, Knott JG, Wang J, Sen A. Anti-Müllerian hormone (AMH) treatment enhances oocyte quality, embryonic development and live birth rate. Biol Reprod 2022; 107:813-822. [DOI: 10.1093/biolre/ioac116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/24/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
Anti-Müllerian hormone (AMH) produced by the granulosa cells of growing follicles is critical for folliculogenesis and is clinically used as a diagnostic and/or prognostic marker of female fertility. Previous studies report that AMH-pretreatment in mice creates a pool of quiescent follicles that are released following superovulation, resulting in increased number of ovulated oocytes. However, the quality and developmental competency of oocytes derived from AMH-induced accumulated follicles as well as the effect of AMH treatment on live birth are not known. This study reports that AMH priming positively affects oocyte maturation and early embryonic development culminating in higher number of live births. Our results show that AMH treatment results in good quality oocytes with higher developmental competence that enhances embryonic development resulting in blastocysts with greater gene expression. Transcriptome analysis of oocytes from AMH-primed compared to control mice reveal that AMH upregulates a large number of genes and pathways associated with oocyte quality and embryonic development. Mitochondrial function is the most affected pathway by AMH priming, that is supported by higher number of active mitochondria, mitochondrial DNA content and ATP levels in oocytes and embryos isolated from AMH-primed compared to control animals. These studies for the first time provide an insight into the overall impact of AMH on female fertility and highlight critical knowledge necessary to develop AMH as a therapeutic option to improve female fertility.
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Affiliation(s)
- Niharika Sinha
- Reproductive and Developmental Sciences Program , Department of Animal Science
| | - Chad S Driscoll
- Reproductive and Developmental Sciences Program , Department of Animal Science
| | - Wenjie Qi
- Department of Computational Mathematics , Science and Engineering, Michigan State University, East Lansing, MI 48824 , USA
| | - Binbin Huang
- Department of Computational Mathematics , Science and Engineering, Michigan State University, East Lansing, MI 48824 , USA
| | - Sambit Roy
- Reproductive and Developmental Sciences Program , Department of Animal Science
| | - Jason G Knott
- Reproductive and Developmental Sciences Program , Department of Animal Science
| | - Jianrong Wang
- Department of Computational Mathematics , Science and Engineering, Michigan State University, East Lansing, MI 48824 , USA
| | - Aritro Sen
- Reproductive and Developmental Sciences Program , Department of Animal Science
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17
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Fang T, Wu ZW, Wang Y, Wang F, Du ZQ, Yang CX. Comparative transcriptome analysis identifies important maternal molecules and associated biological pathways for pig and human mature oocytes. Reprod Domest Anim 2022; 57:643-652. [PMID: 35244301 DOI: 10.1111/rda.14105] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/28/2022] [Indexed: 12/17/2022]
Abstract
Recent researches reveal that during oocyte maturation, species-specific molecular profile exists, and has important functional roles. However, molecular differences between pig (a larger animal model for human reproduction) and human mature oocytes remain unknown. Here, by comparative transcriptome analyses of single cell RNA-seq data, we aimed to identify the common and unique maternal factors and associated biological processes between in vivo and in vitro matured pig oocytes, and between in vitro matured human and pig oocytes. Annotated protein coding mRNAs were identified in pig in vivo (11147) and in vitro (11997), and human in vitro (14491) MII oocytes, respectively. For in vivo and in vitro derived pig MII oocytes, 10551 annotated maternal mRNAs were common, mainly enriched in signaling pathways such as cell cycle, oocyte meiosis, microtubule cytoskeleton, MAPK, RNA processing/binding. Besides, in vivo (596) and in vitro (1446) pig MII-specific mRNAs and their involved signaling pathways (in vivo: Bmp, calcium-mediated signaling, PI3K-Akt; in vitro: growth factor activity, JAK-STAT, cytokine-cytokine receptor interaction, calcium signaling pathway) were also found. As for in vitro derived human and pig MII oocytes, 10285 annotated mRNAs were common, enriched in a variety of signaling pathways (cell cycle, oocyte meiosis, microtubule, AMPK, RNA splicing, protein serine/threonine kinase activity, etc). In vitro MII-specific mRNAs were found for humans (4206) and pigs (1712), which were also enriched in species-specific signaling pathways (humans: golgi related terms, transcription repressor and hormone activity; pigs: ATP biosynthetic process, G protein-coupled peptide receptor activity, animoacyl-tRNA biosynthesis), respectively. These findings improve our understanding on oocyte maturation, and also the limitations of pig model for human oocyte maturation and fertilization.
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Affiliation(s)
- Ting Fang
- College of Animal Science, Yangtze University, JingZhou, 434025, Hubei, China
| | - Zi-Wei Wu
- College of Animal Science, Yangtze University, JingZhou, 434025, Hubei, China
| | - Yi Wang
- College of Animal Science, Yangtze University, JingZhou, 434025, Hubei, China
| | - Fang Wang
- College of Animal Science, Yangtze University, JingZhou, 434025, Hubei, China
| | - Zhi-Qiang Du
- College of Animal Science, Yangtze University, JingZhou, 434025, Hubei, China
| | - Cai-Xia Yang
- College of Animal Science, Yangtze University, JingZhou, 434025, Hubei, China
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18
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Adhikari D, Lee IW, Yuen WS, Carroll J. Oocyte mitochondria – Key regulators of oocyte function and potential therapeutic targets for improving fertility. Biol Reprod 2022; 106:366-377. [DOI: 10.1093/biolre/ioac024] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/20/2022] [Indexed: 11/15/2022] Open
Abstract
Abstract
The development of oocytes and early embryos is dependent on mitochondrial ATP production. This reliance on mitochondrial activity, together with the exclusively maternal inheritance of mitochondria in development, places mitochondria as central regulators of both fertility and transgenerational inheritance mechanisms. Mitochondrial mass and mtDNA content massively increase during oocyte growth. They are highly dynamic organelles and oocyte maturation is accompanied by mitochondrial trafficking around subcellular compartments. Due to their key roles in generation of ATP and reactive oxygen species, oocyte mitochondrial defects have largely been linked with energy deficiency and oxidative stress. Pharmacological treatments and mitochondrial supplementation have been proposed to improve oocyte quality and fertility by enhancing ATP generation and reducing reactive oxygen species levels. More recently, the role of mitochondria-derived metabolites in controlling epigenetic modifiers has provided a mechanistic basis for mitochondria-nuclear crosstalk, allowing adaptation of gene expression to specific metabolic states. Here, we discuss the multi-faceted mechanisms by which mitochondrial function influence oocyte quality, as well as longer-term developmental events within and across generations.
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Affiliation(s)
| | - In-won Lee
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - Wai Shan Yuen
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - John Carroll
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
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19
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Zhang FL, Zhang SE, Sun YJ, Wang JJ, Shen W. Comparative Transcriptomics Uncover the Uniqueness of Oocyte Development in the Donkey. Front Genet 2022; 13:839207. [PMID: 35154289 PMCID: PMC8832878 DOI: 10.3389/fgene.2022.839207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 01/11/2022] [Indexed: 11/13/2022] Open
Abstract
The donkey is an important domestic animal, however the number of donkeys world-wide is currently declining. It is therefore important to protect their genetic resources and to elaborate the regulatory mechanisms of donkey reproduction, particularly, oocyte development. Here, we adopted comparative transcriptomic analysis and weighted gene co-expression network analysis (WGCNA) to uncover the uniqueness of donkey oocyte development compared to cattle, sheep, pigs, and mice, during the period from germinal vesicle (GV) to metaphase II (MII). Significantly, we selected 36 hub genes related to donkey oocyte development, including wee1-like protein kinase 2 (WEE2). Gene Ontology (GO) analysis suggested that these genes are involved in the negative regulation of cell development. Interestingly, we found that donkey specific differentially expressed genes (DEGs) were involved in RNA metabolism and apoptosis. Moreover, the results of WGCNA showed species-specific gene expression patterns. We conclude that, compared to other species, donkey oocytes express a large number of genes related to RNA metabolism to maintain normal oocyte development during the period from GV to MII.
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Affiliation(s)
- Fa-Li Zhang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai’an, China
| | - Shu-Er Zhang
- Animal Husbandry General Station of Shandong Province, Jinan, China
| | - Yu-Jiang Sun
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
- Dongying Vocational Institute, Dongying, China
| | - Jun-Jie Wang
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
- *Correspondence: Wei Shen, , ; Jun-Jie Wang,
| | - Wei Shen
- College of Life Sciences, Key Laboratory of Animal Reproduction and Biotechnology in Universities of Shandong, Qingdao Agricultural University, Qingdao, China
- *Correspondence: Wei Shen, , ; Jun-Jie Wang,
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20
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He Y, Chen Q, Zhang J, Yu J, Xia M, Wang X. Pervasive 3'-UTR Isoform Switches During Mouse Oocyte Maturation. Front Mol Biosci 2021; 8:727614. [PMID: 34733887 PMCID: PMC8558312 DOI: 10.3389/fmolb.2021.727614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/29/2021] [Indexed: 12/13/2022] Open
Abstract
Oocyte maturation is the foundation for developing healthy individuals of mammals. Upon germinal vesicle breakdown, oocyte meiosis resumes and the synthesis of new transcripts ceases. To quantitatively profile the transcriptomic dynamics after meiotic resumption throughout the oocyte maturation, we generated transcriptome sequencing data with individual mouse oocytes at three main developmental stages: germinal vesicle (GV), metaphase I (MI), and metaphase II (MII). When clustering the sequenced oocytes, results showed that isoform-level expression analysis outperformed gene-level analysis, indicating isoform expression provided extra information that was useful in distinguishing oocyte stages. Comparing transcriptomes of the oocytes at the GV stage and the MII stage, in addition to identification of differentially expressed genes (DEGs), we detected many differentially expressed transcripts (DETs), some of which came from genes that were not identified as DEGs. When breaking down the isoform-level changes into alternative RNA processing events, we found the main source of isoform composition changes was the alternative usage of polyadenylation sites. With detailed analysis focusing on the alternative usage of 3′-UTR isoforms, we identified, out of 3,810 tested genes, 512 (13.7%) exhibiting significant switches of 3′-UTR isoforms during the process of moues oocyte maturation. Altogether, our data and analyses suggest the importance of examining isoform abundance changes during oocyte maturation, and further investigation of the pervasive 3′-UTR isoform switches in the transition may deepen our understanding on the molecular mechanisms underlying mammalian early development.
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Affiliation(s)
- Yuanlin He
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China.,Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Qiuzhen Chen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Jing Zhang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Jing Yu
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China.,Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Meng Xia
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xi Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
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21
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The periphilin 1-like BFAR isoform 3 is highly expressed in transcriptionally silent oocytes and involved in RNA metabolism. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:119086. [PMID: 34175335 DOI: 10.1016/j.bbamcr.2021.119086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 05/22/2021] [Accepted: 06/19/2021] [Indexed: 11/22/2022]
Abstract
The mouse 3110001I22Rik gene located in the first intron of Bfar is considered as a Bfar variant coding for the BFARv3 protein. However, it differs from other BFAR isoforms and resembles periphilin 1 (PPHLN1) due to its two (Lge1 and serine-rich) conserved domains. We identified the BFARv3/EGFP-interacting proteins by co-immunoprecipitation coupled to mass spectrometry, which revealed 40S ribosomal proteins (RPS3, RPS14, RPS19, RPS25, RPS27), histones (H1.2, H1.4, H3.3C), proteins involved in RNA processing and splicing (SFPQ, SNRPA1, HNRNPA3, NONO, KHDRBS3), calcium signaling (HPCAL1, PTK2B), as well as HSD17B4, GRB14, POSTN, and MYO10. Co-immunoprecipitation revealed that both Lge1 and Ser-rich domains of BFARv3 were necessary for binding to RNA-interacting factors NONO and SFPQ, known to be components of paraspeckles. Reciprocal co-immunoprecipitation and the proximity ligation assay confirmed that both BFARv3 and PPHLN1 could interact with NONO and SFPQ, suggesting a new function for PPHLN1 as well. BFARv3 and its Lge1 or Ser-rich-deficient mutants preferentially localize in the nucleus. We found an accumulation of BFARv3/EGFP (but not its mutated forms) in the nuclear granules, which was enhanced in response to arsenite treatment and ionizing radiation. Although Bfar v3 is expressed ubiquitously in mouse tissues, its expression is the highest in metaphase II oocytes. The BFARv3 interactome suggests its role in RNA metabolism, which is critical for the transcriptionally silent MII oocyte. Mouse BFARv3 has no ortholog in the human genome, thus it may contribute to the differences between these two species observed in oocyte maturation and early embryonic development.
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22
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Hernández-Fernández J, Pinzón-Velasco A, López EA, Rodríguez-Becerra P, Mariño-Ramírez L. Transcriptional Analyses of Acute Exposure to Methylmercury on Erythrocytes of Loggerhead Sea Turtle. TOXICS 2021; 9:70. [PMID: 33805397 PMCID: PMC8066450 DOI: 10.3390/toxics9040070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/11/2021] [Accepted: 03/17/2021] [Indexed: 01/09/2023]
Abstract
To understand changes in enzyme activity and gene expression as biomarkers of exposure to methylmercury, we exposed loggerhead turtle erythrocytes (RBCs) to concentrations of 0, 1, and 5 mg L-1 of MeHg and de novo transcriptome were assembled using RNA-seq. The analysis of differentially expressed genes (DEGs) indicated that 79 unique genes were dysregulated (39 upregulated and 44 downregulated genes). The results showed that MeHg altered gene expression patterns as a response to the cellular stress produced, reflected in cell cycle regulation, lysosomal activity, autophagy, calcium regulation, mitochondrial regulation, apoptosis, and regulation of transcription and translation. The analysis of DEGs showed a low response of the antioxidant machinery to MeHg, evidenced by the fact that genes of early response to oxidative stress were not dysregulated. The RBCs maintained a constitutive expression of proteins that represented a good part of the defense against reactive oxygen species (ROS) induced by MeHg.
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Affiliation(s)
- Javier Hernández-Fernández
- Department of Natural and Environmental Science, Marine Biology Program, Faculty of Science and Engineering, Genetics, Molecular Biology and Bioinformatic Research Group–GENBIMOL, Jorge Tadeo Lozano University, Cra. 4 No 22-61, Bogotá 110311, Colombia;
- Faculty of Sciences, Department of Biology, Pontificia Universidad Javeriana, Calle 45, Cra. 7, Bogotá 110231, Colombia
| | - Andrés Pinzón-Velasco
- Bioinformática y Biología de Sistemas, Universidad Nacional de Colombia, Calle 45, Cra. 30, Bogotá 111321, Colombia;
| | - Ellie Anne López
- IDEASA Research Group-Environment and Sustainability, Institute of Environmental Studies and Services, Sergio Arboleda University, Bogotá 111711, Colombia;
| | - Pilar Rodríguez-Becerra
- Department of Natural and Environmental Science, Marine Biology Program, Faculty of Science and Engineering, Genetics, Molecular Biology and Bioinformatic Research Group–GENBIMOL, Jorge Tadeo Lozano University, Cra. 4 No 22-61, Bogotá 110311, Colombia;
| | - Leonardo Mariño-Ramírez
- NCBI, NLM, NIH Computational Biology Branch, Building 38A, Room 6S614M 8600 Rockville Pike, MSC 6075, Bethesda, MD 20894-6075, USA;
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23
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Peng Y, Qiao H. The Application of Single-Cell RNA Sequencing in Mammalian Meiosis Studies. Front Cell Dev Biol 2021; 9:673642. [PMID: 34485276 PMCID: PMC8416306 DOI: 10.3389/fcell.2021.673642] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 07/05/2021] [Indexed: 12/14/2022] Open
Abstract
Meiosis is a cellular division process that produces gametes for sexual reproduction. Disruption of complex events throughout meiosis, such as synapsis and homologous recombination, can lead to infertility and aneuploidy. To reveal the molecular mechanisms of these events, transcriptome studies of specific substages must be conducted. However, conventional methods, such as bulk RNA-seq and RT-qPCR, are not able to detect the transcriptional variations effectively and precisely, especially for identifying cell types and stages with subtle differences. In recent years, mammalian meiotic transcriptomes have been intensively studied at the single-cell level by using single-cell RNA-seq (scRNA-seq) approaches, especially through two widely used platforms, Smart-seq2 and Drop-seq. The scRNA-seq protocols along with their downstream analysis enable researchers to accurately identify cell heterogeneities and investigate meiotic transcriptomes at a higher resolution. In this review, we compared bulk RNA-seq and scRNA-seq to show the advantages of the scRNA-seq in meiosis studies; meanwhile, we also pointed out the challenges and limitations of the scRNA-seq. We listed recent findings from mammalian meiosis (male and female) studies where scRNA-seq applied. Next, we summarized the scRNA-seq analysis methods and the meiotic marker genes from spermatocytes and oocytes. Specifically, we emphasized the different features of the two scRNA-seq protocols (Smart-seq2 and Drop-seq) in the context of meiosis studies and discussed their strengths and weaknesses in terms of different research purposes. Finally, we discussed the future applications of scRNA-seq in the meiosis field.
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Affiliation(s)
- Yiheng Peng
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Huanyu Qiao
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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