1
|
Liu B, Liu Y, Li S, Chen P, Zhang J, Feng L. Depletion of placental brain-derived neurotrophic factor (BDNF) is attributed to premature ovarian insufficiency (POI) in mice offspring. J Ovarian Res 2024; 17:141. [PMID: 38982490 PMCID: PMC11232340 DOI: 10.1186/s13048-024-01467-4] [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: 12/11/2023] [Accepted: 06/29/2024] [Indexed: 07/11/2024] Open
Abstract
INTRODUCTION Premature ovarian insufficiency (POI) is one of the causes of female infertility. Unexplained POI is increasingly affecting women in their reproductive years. However, the etiology of POI is diverse and remains elusive. We and others have shown that brain-derived neurotrophic factor (BDNF) plays an important role in adult ovarian function. Here, we report on a novel role of BDNF in the Developmental Origins of POI. METHODS Placental BDNF knockout mice were created using CRISPR/CAS9. Homozygous knockout (cKO(HO)) mice didn't survive, while heterozygous knockout (cKO(HE)) mice did. BDNF reduction in cKO(HE) mice was confirmed via immunohistochemistry and Western blots. Ovaries were collected from cKO(HE) mice at various ages, analyzing ovarian metrics, FSH expression, and litter sizes. In one-month-old mice, oocyte numbers were assessed using super-ovulation, and oocyte gene expression was analyzed with smart RNAseq. Ovaries of P7 mice were studied with SEM, and gene expression was confirmed with RT-qPCR. Alkaline phosphatase staining at E11.5 and immunofluorescence for cyclinD1 assessed germ cell number and cell proliferation. RESULTS cKO(HE) mice had decreased ovarian function and litter size in adulthood. They were insensitive to ovulation induction drugs manifested by lower oocyte release after superovulation in one-month-old cKO(HE) mice. The transcriptome and SEM results indicate that mitochondria-mediated cell death or aging might occur in cKO(HE) ovaries. Decreased placental BDNF led to diminished primordial germ cell proliferation at E11.5 and ovarian reserve which may underlie POI in adulthood. CONCLUSION The current results showed decreased placental BDNF diminished primordial germ cell proliferation in female fetuses during pregnancy and POI in adulthood. Our findings can provide insights into understanding the underlying mechanisms of POI.
Collapse
Affiliation(s)
- Bin Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
- Department of Reproduction, School of Medicine, Xinhua Hospital, Shanghai Jiao-Tong University, Shanghai, China
| | - Yongjie Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Shuman Li
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Pingping Chen
- Department of Reproduction, School of Medicine, Xinhua Hospital, Shanghai Jiao-Tong University, Shanghai, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, School of Medicine, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China.
| | - Liping Feng
- Department of Obstetrics and Gynaecology, Duke University, Durham, NC, USA.
| |
Collapse
|
2
|
Conti M, Kunitomi C. A genome-wide perspective of the maternal mRNA translation program during oocyte development. Semin Cell Dev Biol 2024; 154:88-98. [PMID: 36894378 PMCID: PMC11250054 DOI: 10.1016/j.semcdb.2023.03.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 02/01/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
Transcriptional and post-transcriptional regulations control gene expression in most cells. However, critical transitions during the development of the female gamete relies exclusively on regulation of mRNA translation in the absence of de novo mRNA synthesis. Specific temporal patterns of maternal mRNA translation are essential for the oocyte progression through meiosis, for generation of a haploid gamete ready for fertilization and for embryo development. In this review, we will discuss how mRNAs are translated during oocyte growth and maturation using mostly a genome-wide perspective. This broad view on how translation is regulated reveals multiple divergent translational control mechanisms required to coordinate protein synthesis with progression through the meiotic cell cycle and with development of a totipotent zygote.
Collapse
Affiliation(s)
- Marco Conti
- Center for Reproductive Sciences, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, and Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA.
| | - Chisato Kunitomi
- Center for Reproductive Sciences, Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, and Department of Obstetrics and Gynecology and Reproductive Sciences, University of California, San Francisco, CA 94143, USA
| |
Collapse
|
3
|
Okutman O, Gürbüz AS, Büyük U, Real E, Leconte R, Chennen K, Mayer C, Muller J, Le May N, Viville S. Pathogenic missense variation in PABPC1L/EPAB causes female infertility due to oocyte maturation arrest at the germinal vesicle stage. J Assist Reprod Genet 2024; 41:311-322. [PMID: 38177974 PMCID: PMC10894787 DOI: 10.1007/s10815-023-03009-1] [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: 10/12/2023] [Accepted: 12/13/2023] [Indexed: 01/06/2024] Open
Abstract
Women undergoing controlled ovarian hyperstimulation prior to in vitro fertilization (IVF) are treated using various protocols to induce multiple follicular growths. Complete failure of all oocytes to mature during IVF cycles is rare; however, it is a known cause of primary female infertility. Recently, pathogenic variations in a few genes have been identified in women with oocyte maturation defects; however, the underlying genetic causes remain largely unknown.This study included a Turkish family comprising three sisters with recurring oocyte maturation arrest at the germinal vesicle stage after multiple ovarian stimulations. Exome sequencing revealed a homozygous missense variant (c.1037C>T, p.Ala346Val) in the EPAB gene (also known as PABPC1L) in all three affected sisters, which was either absent or heterozygous in the unaffected family members. Functional experiments confirming the pathogenicity of the variant were performed by transfecting HEK293T cells and demonstrated the instability and increased rate of proteolysis of the mutated PABPC1L/EPAB protein. The identified variant, located in the well-conserved fourth RNA recognition motif (RRM4), in silico 3D modelling suggested changes in the physical properties of the pathogenic variant of PABPC1L/EPAB. Our findings validate PABPC1L/EPAB as an essential genetic contributor to the oocyte maturation process in humans and have direct implications for the genetic counselling of patients and their family members.
Collapse
Affiliation(s)
- O Okutman
- Université Libre de Bruxelles (ULB), Hôpital Universitaire de Bruxelles (H.U.B), Hôpital Erasme, Service de Gynécologie-Obstetrique, Clinique de Fertilité, Route de Lennik, 808, 1070, Brussels, Belgium
| | | | - U Büyük
- Department of Molecular Biology and Genetics, Institute of Graduate Studies in Sciences, Istanbul University, Istanbul, Turkey
| | - E Real
- Laboratoire de Génétique Médicale LGM, Institut de Génétique Médicale d'Alsace IGMA, INSERM UMR 1112, Université de Strasbourg, Strasbourg, France
| | - R Leconte
- Laboratoire de Génétique Médicale LGM, Institut de Génétique Médicale d'Alsace IGMA, INSERM UMR 1112, Université de Strasbourg, Strasbourg, France
| | - K Chennen
- Complex Systems and Translational Bioinformatics, ICube UMR 7357, Université de Strasbourg, 67000, Strasbourg, France
| | - C Mayer
- Complex Systems and Translational Bioinformatics, ICube UMR 7357, Université de Strasbourg, 67000, Strasbourg, France
- UFR Sciences de La Vie, Université Paris Cité, 75013, Paris, France
| | - J Muller
- Laboratoire de Génétique Médicale LGM, Institut de Génétique Médicale d'Alsace IGMA, INSERM UMR 1112, Université de Strasbourg, Strasbourg, France
- Unité Fonctionnelle de Bioinformatique Médicale Appliquée Au Diagnostic (UF7363), Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - N Le May
- Laboratoire de Génétique Médicale LGM, Institut de Génétique Médicale d'Alsace IGMA, INSERM UMR 1112, Université de Strasbourg, Strasbourg, France
| | - S Viville
- Laboratoire de Génétique Médicale LGM, Institut de Génétique Médicale d'Alsace IGMA, INSERM UMR 1112, Université de Strasbourg, Strasbourg, France.
- Laboratoire de Diagnostic Génétique, Unité de Génétique de L'infertilité (UF3472), Hôpitaux Universitaires de Strasbourg, 67091, Strasbourg, France.
| |
Collapse
|
4
|
Song CR, Zhang RJ, Xue FR, Zhang XJ, Wang XY, Sun D, Ding K, Yang Q, Wang XY, Liang CG. mRNA 3' -UTR-mediate translational control through PAS and CPE in sheep oocyte. Theriogenology 2023; 201:30-40. [PMID: 36827867 DOI: 10.1016/j.theriogenology.2022.11.023] [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: 07/16/2022] [Revised: 10/21/2022] [Accepted: 11/15/2022] [Indexed: 12/13/2022]
Abstract
In oocytes, the cytoplasmic polyadenylation and maternal mRNAs translation is regulated by cis-elements, including polyadenylation signal (PAS) and cytoplasmic polyadenylation element (CPE) in 3'-UTR. Recent studies illustrate non-canonical polyadenylation mechanisms of translational regulation in mouse oocytes, which is different from that in Xenopus oocytes. However, it is still unclear if this regulation in rodent oocytes functions in the domestic animal oocyte. Here, by using sheep as an animal model, we cloned the 3'-UTRs of Cpeb1 or Btg4 and ligated it into the pRK5-Flag-Gfp vector. Variant numbers and positions of PASs and CPEs within the 3'-UTRs were constructed to detect their effects on translational control. After in vitro-transcription and microinjection into sheep fully grown germinal vesicle stage oocytes, the expression efficiency of mRNAs was detected by the GFP and flag expression. Our results show that: (i) PAS located at the proximal end of 3'-UTR can mediate the translation of the maternal mRNAs, as long as they locate far from CPEs; (ii) The proximal PAS has higher efficiency in regulating transcription than the distal one; (iii) increase of PAS number can promote the translational activity more efficiently; (iv) a single CPE located close to PAS (<50 bp) in 3'-UTRs of Cpeb1 or Btg4 could partially repress translation. In 3'-UTRs of Btg4, two CPEs have a higher inhibitory effect, and three CPEs can completely inhibit mRNA translation. These results confirm the existence of the non-canonical mechanism in domestic animal oocytes.
Collapse
Affiliation(s)
- Chun-Ru Song
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Ru-Jing Zhang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Fang-Rui Xue
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Xiao-Jie Zhang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Xing-Yue Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Dui Sun
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Kang Ding
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Qi Yang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Xin-Yu Wang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China
| | - Cheng-Guang Liang
- State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, People's Republic of China.
| |
Collapse
|
5
|
Wang W, Guo J, Shi J, Li Q, Chen B, Pan Z, Qu R, Fu J, Shi R, Xue X, Mu J, Zhang Z, Wu T, Wang W, Zhao L, Li Q, He L, Sun X, Sang Q, Lin G, Wang L. Bi-allelic pathogenic variants in PABPC1L cause oocyte maturation arrest and female infertility. EMBO Mol Med 2023:e17177. [PMID: 37052235 DOI: 10.15252/emmm.202217177] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/14/2023] Open
Abstract
Oocyte maturation arrest is one of the important causes of female infertility, but the genetic factors remain largely unknown. PABPC1L, a predominant poly(A)-binding protein in Xenopus, mouse, and human oocytes and early embryos prior to zygotic genome activation, plays a key role in translational activation of maternal mRNAs. Here, we identified compound heterozygous and homozygous variants in PABPC1L that are responsible for female infertility mainly characterized by oocyte maturation arrest in five individuals. In vitro studies demonstrated that these variants resulted in truncated proteins, reduced protein abundance, altered cytoplasmic localization, and reduced mRNA translational activation by affecting the binding of PABPC1L to mRNA. In vivo, three strains of Pabpc1l knock-in (KI) female mice were infertile. RNA-sequencing analysis showed abnormal activation of the Mos-MAPK pathway in the zygotes of KI mice. Finally, we activated this pathway in mouse zygotes by injecting human MOS mRNA, and this mimicked the phenotype of KI mice. Our findings reveal the important roles of PABPC1L in human oocyte maturation and add a genetic potential candidate gene to be screened for causes of infertility.
Collapse
Affiliation(s)
- Weijie Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Jing Guo
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Juanzi Shi
- Reproductive Medicine Center, Shaanxi Maternal and Child Care Service Center, Xi'an, China
| | - Qun Li
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
- Human Phenome Institute, Fudan University, Shanghai, China
| | - Biaobang Chen
- NHC Key Lab of Reproduction Regulation (Shanghai Institute for Biomedical and Pharmaceutical Technologies), Fudan University, Shanghai, China
| | - Zhiqi Pan
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Ronggui Qu
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Jing Fu
- Shanghai Ji Ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Rong Shi
- Reproductive Medicine Center, Shaanxi Maternal and Child Care Service Center, Xi'an, China
| | - Xia Xue
- Reproductive Medicine Center, Shaanxi Maternal and Child Care Service Center, Xi'an, China
| | - Jian Mu
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Zhihua Zhang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Tianyu Wu
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Wenjing Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Lin Zhao
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Qiaoli Li
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Lin He
- Bio-X Center, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaoxi Sun
- Shanghai Ji Ai Genetics and IVF Institute, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Qing Sang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| | - Ge Lin
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Lei Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, the Shanghai Key Laboratory of Medical Epigenetics, the Institutes of Biomedical Sciences, the State Key Laboratory of Genetic Engineering, Fudan University, Shanghai, China
| |
Collapse
|
6
|
Ozturk S, Kosebent EG, Talibova G, Bilmez Y, Tire B, Can A. Embryonic poly(A)-binding protein interacts with translation-related proteins and undergoes phosphorylation on the serine, threonine, and tyrosine residues in the mouse oocytes and early embryos. J Assist Reprod Genet 2023; 40:929-941. [PMID: 36823316 PMCID: PMC10224904 DOI: 10.1007/s10815-023-02746-7] [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: 09/19/2022] [Accepted: 02/03/2023] [Indexed: 02/25/2023] Open
Abstract
Expression of the embryonic poly(A)-binding protein (EPAB) in frog, mouse, and human oocytes and early-stage embryos is maintained at high levels until embryonic genome activation (EGA) after which a significant decrease occurs in EPAB levels. Studies on the vertebrate oocytes and early embryos revealed that EPAB plays key roles in the translational regulation, stabilization, and protection of maternal mRNAs during oocyte maturation and early embryogenesis. However, it remains elusive whether EPAB interacts with other cellular proteins and undergoes phosphorylation to perform these roles. For this purpose, we identified a group of Epab-interacting proteins and its phosphorylation status in mouse germinal vesicle (GV)- and metaphase II (MII)-stage oocytes, and in 1-cell, 2-cell, and 4-cell preimplantation embryos. In the oocytes and early preimplantation embryos, Epab-interacting proteins were found to play roles in the translation and transcription processes, intracellular signaling and transport, maintenance of structural integrity, metabolism, posttranslational modifications, and chromatin remodeling. Moreover, we discovered that Epab undergoes phosphorylation on the serine, threonine, and tyrosine residues, which are localized in the RNA recognition motifs 2, 3, and 4 or C-terminal. Conclusively, these findings suggest that Epab not only functions in the translational control of maternal mRNAs through binding to their poly(A) tails but also participates in various cellular events through interacting with certain group proteins. Most likely, Epab undergoes a dynamic phosphorylation during the oocyte maturation and the early embryo development to carry out these functions.
Collapse
Affiliation(s)
- Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey.
| | - Esra Gozde Kosebent
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Gunel Talibova
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Yesim Bilmez
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Betul Tire
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, Antalya, 07070, Turkey
| | - Alp Can
- Department of Histology and Embryology, Ankara University School of Medicine, Ankara, 06410, Turkey
| |
Collapse
|
7
|
Hao X, Yuan F, Cui Y, Zhang M. Oocyte-secreted factor TGFB2 enables mouse cumulus cell expansion in vitro. Mol Reprod Dev 2022; 89:554-562. [PMID: 36128893 DOI: 10.1002/mrd.23646] [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: 03/23/2022] [Revised: 08/04/2022] [Accepted: 09/07/2022] [Indexed: 12/25/2022]
Abstract
Cumulus expansion is necessary for the release of a fertilizable oocyte from the ovary, which is critical for the normal fertilization of mammals. Cumulus expansion requires cooperation between epidermal growth factor (EGF)-like growth factors and oocyte paracrine factors. Growth differentiation factor 9 (GDF9) and bone morphogenetic protein 15 (BMP15) are well-known paracrine factors secreted by oocytes. In addition, transforming growth factor-β2 (TGFB2) was primarily expressed in oocytes and its membrane receptors type 1 receptor (TGFBR1) and type 2 receptor (TGFBR2) were located in cumulus cells. In our present study, TGFB2 induced expansion of oocytectomized (OOX) complexes and increased the expression of expansion-related genes in the presence of EGF, suggesting that TGFB2 enables cumulus expansion. Inhibition of TGF-β signaling with SD208 blocked TGFB2-promoted cumulus expansion. Furthermore, in the culture of OOX complexes from mice of Tgfbr2-specific depletion in granulosa cells, TGFB2-promoted cumulus expansion and the expression of expansion-related genes were impaired. These results suggest that TGFB2 could induce cumulus expansion through TGFBR-SMAD2/3 signaling. Tgfb2-specific depletion in oocytes using Zp3-Cre mice had no effect on cumulus expansion in vivo, possibly due to the compensatory effect of other cumulus expansion-enabling factors. Taken together, TGFB2 is involved in expansion-related gene expression and consequent cumulus expansion.
Collapse
Affiliation(s)
- Xiaoqiong Hao
- Department of Physiology, Baotou Medical College, Baotou, China.,Division of Cell, Developmental, and Integrative Biology, Department of Physiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Feifei Yuan
- Division of Cell, Developmental, and Integrative Biology, Department of Physiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yanying Cui
- Division of Cell, Developmental, and Integrative Biology, Department of Physiology, School of Medicine, South China University of Technology, Guangzhou, China
| | - Meijia Zhang
- Division of Cell, Developmental, and Integrative Biology, Department of Physiology, School of Medicine, South China University of Technology, Guangzhou, China
| |
Collapse
|
8
|
Zhang X, Zhao H, Li Y, Zhang Y, Liang Y, Shi J, Zhou R, Hong L, Cai G, Wu Z, Li Z. Amphiregulin Supplementation During Pig Oocyte In Vitro Maturation Enhances Subsequent Development of Cloned Embryos by Promoting Cumulus Cell Proliferation. Cell Reprogram 2022; 24:175-185. [PMID: 35861708 DOI: 10.1089/cell.2022.0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The oocyte in vitro maturation (IVM) technique is important in animal husbandry, biomedicine, and human-assisted reproduction. However, the developmental potential of in vitro matured oocytes is usually lower than that of in vivo matured (IVVM) oocytes. Amphiregulin (AREG) is an EGF-like growth factor that plays critical roles in the maturation and development of mammalian oocytes. This study investigated the effects of AREG supplementation during pig oocyte IVM on the subsequent development of cloned embryos. The addition of AREG to pig oocyte IVM medium improved the developmental competence of treated oocyte-derived cloned embryos by enhancing the expansion and proliferation of cumulus cells (CCs) during IVM. The positive effect of AREG on enhancing the quality of IVVM pig oocytes might be due to the activation of proliferation-related pathways in CCs by acting on the AREG receptor. The present study provides an AREG treatment-based method to improve the developmental competence of cloned pig embryos.
Collapse
Affiliation(s)
- Xianjun Zhang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Huaxing Zhao
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Yanan Li
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Yuxing Zhang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Yalin Liang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Junsong Shi
- Guangdong Wens Pig Breeding Technology Co., Ltd., Yunfu, China
| | - Rong Zhou
- Guangdong Wens Pig Breeding Technology Co., Ltd., Yunfu, China
| | - Linjun Hong
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Gengyuan Cai
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Zhenfang Wu
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
| | - Zicong Li
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou, China.,Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou, China.,State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou, China
| |
Collapse
|
9
|
Zhao LW, Fan HY. Revisiting poly(A)-binding proteins: Multifaceted regulators during gametogenesis and early embryogenesis. Bioessays 2021; 43:e2000335. [PMID: 33830517 DOI: 10.1002/bies.202000335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 12/27/2022]
Abstract
Post-transcriptional regulation faces a distinctive challenge in gametes. Transcription is limited when the germ cells enter the division phase due to condensed chromatin, while gene expression during gamete maturation, fertilization, and early cleavage depends on existing mRNA post-transcriptional coordination. The dynamics of the 3'-poly(A) tail play crucial roles in defining mRNA fate. The 3'-poly(A) tail is covered with poly(A)-binding proteins (PABPs) that help to mediate mRNA metabolism and recent work has shed light on the number and function of germ cell-specific expressed PABPs. There are two structurally different PABP groups distinguished by their cytoplasmic and nuclear localization. Both lack catalytic activity but are coupled with various roles through their interaction with multifunctional partners during mRNA metabolism. Here, we present a synopsis of PABP function during gametogenesis and early embryogenesis and describe both conventional and current models of the functions and regulation of PABPs, with an emphasis on the physiological significance of how germ cell-specific PABPs potentially affect human fertility.
Collapse
Affiliation(s)
- Long-Wen Zhao
- MOE Key Laboratory for Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Heng-Yu Fan
- MOE Key Laboratory for Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network, Life Sciences Institute, Zhejiang University, Hangzhou, China.,Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Assisted Reproduction Unit, Department of Obstetrics and Gynecology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| |
Collapse
|
10
|
Abbassi L, El-Hayek S, Carvalho KF, Wang W, Yang Q, Granados-Aparici S, Mondadori R, Bordignon V, Clarke HJ. Epidermal growth factor receptor signaling uncouples germ cells from the somatic follicular compartment at ovulation. Nat Commun 2021; 12:1438. [PMID: 33664246 PMCID: PMC7933413 DOI: 10.1038/s41467-021-21644-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 02/07/2021] [Indexed: 01/31/2023] Open
Abstract
Germ cells are physically coupled to somatic support cells of the gonad during differentiation, but this coupling must be disrupted when they are mature, freeing them to participate in fertilization. In mammalian females, coupling occurs via specialized filopodia that project from the ovarian follicular granulosa cells to the oocyte. Here, we show that signaling through the epidermal growth factor receptor (EGFR) in the granulosa, which becomes activated at ovulation, uncouples the germ and somatic cells by triggering a massive and temporally synchronized retraction of the filopodia. Although EGFR signaling triggers meiotic maturation of the oocyte, filopodial retraction is independent of the germ cell state, being regulated solely within the somatic compartment, where it requires ERK-dependent calpain-mediated loss of filopodia-oocyte adhesion followed by Arp2/3-mediated filopodial shortening. By uncovering the mechanism regulating germ-soma uncoupling at ovulation, our results open a path to improving oocyte quality in human and animal reproduction.
Collapse
Affiliation(s)
- Laleh Abbassi
- Research Institute of the McGill University Health Centre, Montreal, Canada
- Division of Experimental Medicine, McGill University, Montreal, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Stephany El-Hayek
- Research Institute of the McGill University Health Centre, Montreal, Canada
- Department of Biology, McGill University, Montreal, Canada
- Centre for Arab Genomic Studies, Dubai, United Arab Emirates
| | - Karen Freire Carvalho
- Research Institute of the McGill University Health Centre, Montreal, Canada
- Division of Experimental Medicine, McGill University, Montreal, Canada
| | - Wusu Wang
- Research Institute of the McGill University Health Centre, Montreal, Canada
- College of Animal Science and Technology, Northwest A&F University, Shaanxi, PR China
| | - Qin Yang
- Research Institute of the McGill University Health Centre, Montreal, Canada
| | | | - Rafael Mondadori
- Department of Animal Science, McGill University, Montreal, Canada
| | - Vilceu Bordignon
- Department of Animal Science, McGill University, Montreal, Canada
| | - Hugh J Clarke
- Research Institute of the McGill University Health Centre, Montreal, Canada.
- Division of Experimental Medicine, McGill University, Montreal, Canada.
- Department of Biology, McGill University, Montreal, Canada.
- Department of Obstetrics and Gynecology, McGill University, Montreal, Canada.
| |
Collapse
|
11
|
Esencan E, Kallen A, Zhang M, Seli E. Translational activation of maternally derived mRNAs in oocytes and early embryos and the role of embryonic poly(A) binding protein (EPAB). Biol Reprod 2020; 100:1147-1157. [PMID: 30806655 DOI: 10.1093/biolre/ioz034] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 01/23/2019] [Accepted: 02/23/2019] [Indexed: 12/20/2022] Open
Abstract
Transcription ceases upon stimulation of oocyte maturation and gene expression during oocyte maturation, fertilization, and early cleavage relies on translational activation of maternally derived mRNAs. Two key mechanisms that mediate translation of mRNAs in oocytes have been described in detail: cytoplasmic polyadenylation-dependent and -independent. Both of these mechanisms utilize specific protein complexes that interact with cis-acting sequences located on 3'-untranslated region (3'-UTR), and both involve embryonic poly(A) binding protein (EPAB), the predominant poly(A) binding protein during early development. While mechanistic details of these pathways have primarily been elucidated using the Xenopus model, their roles are conserved in mammals and targeted disruption of key regulators in mouse results in female infertility. Here, we provide a detailed account of the molecular mechanisms involved in translational activation during oocyte and early embryo development, and the role of EPAB in this process.
Collapse
Affiliation(s)
- Ecem Esencan
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Amanda Kallen
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Man Zhang
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Emre Seli
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| |
Collapse
|
12
|
Christou-Kent M, Dhellemmes M, Lambert E, Ray PF, Arnoult C. Diversity of RNA-Binding Proteins Modulating Post-Transcriptional Regulation of Protein Expression in the Maturing Mammalian Oocyte. Cells 2020; 9:cells9030662. [PMID: 32182827 PMCID: PMC7140715 DOI: 10.3390/cells9030662] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 12/18/2022] Open
Abstract
The oocyte faces a particular challenge in terms of gene regulation. When oocytes resume meiosis at the end of the growth phase and prior to ovulation, the condensed chromatin state prevents the transcription of genes as they are required. Transcription is effectively silenced from the late germinal vesicle (GV) stage until embryonic genome activation (EGA) following fertilisation. Therefore, during its growth, the oocyte must produce the mRNA transcripts needed to fulfil its protein requirements during the active period of meiotic completion, fertilisation, and the maternal-to zygote-transition (MZT). After meiotic resumption, gene expression control can be said to be transferred from the nucleus to the cytoplasm, from transcriptional regulation to translational regulation. Maternal RNA-binding proteins (RBPs) are the mediators of translational regulation and their role in oocyte maturation and early embryo development is vital. Understanding these mechanisms will provide invaluable insight into the oocyte's requirements for developmental competence, with important implications for the diagnosis and treatment of certain types of infertility. Here, we give an overview of post-transcriptional regulation in the oocyte, emphasising the current knowledge of mammalian RBP mechanisms, and develop the roles of these mechanisms in the timely activation and elimination of maternal transcripts.
Collapse
Affiliation(s)
- Marie Christou-Kent
- Université Grenoble Alpes, F-38000 Grenoble, France; (M.C.-K.); (M.D.); (E.L.); (P.F.R.)
- Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
| | - Magali Dhellemmes
- Université Grenoble Alpes, F-38000 Grenoble, France; (M.C.-K.); (M.D.); (E.L.); (P.F.R.)
- Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
| | - Emeline Lambert
- Université Grenoble Alpes, F-38000 Grenoble, France; (M.C.-K.); (M.D.); (E.L.); (P.F.R.)
- Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
| | - Pierre F. Ray
- Université Grenoble Alpes, F-38000 Grenoble, France; (M.C.-K.); (M.D.); (E.L.); (P.F.R.)
- Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
- CHU de Grenoble, UM GI-DPI, F-38000 Grenoble, France
| | - Christophe Arnoult
- Université Grenoble Alpes, F-38000 Grenoble, France; (M.C.-K.); (M.D.); (E.L.); (P.F.R.)
- Institute for Advanced Biosciences INSERM U1209, CNRS UMR5309, F-38000 Grenoble, France
- Correspondence: ; Tel.: +33-(0)4-76-63-74-08
| |
Collapse
|
13
|
Zhang Y, Yang J, Yang J, Li J, Zhang M. CREB activity is required for epidermal growth factor‐induced mouse cumulus expansion. Mol Reprod Dev 2019; 86:1887-1900. [DOI: 10.1002/mrd.23285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/28/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Yu Zhang
- State Key Laboratory for Agrobiotechnology, College of Biological SciencesChina Agricultural University Beijing China
| | - Jian Yang
- State Key Laboratory for Agrobiotechnology, College of Biological SciencesChina Agricultural University Beijing China
| | - Jing Yang
- State Key Laboratory for Agrobiotechnology, College of Biological SciencesChina Agricultural University Beijing China
| | - Jia Li
- State Key Laboratory for Agrobiotechnology, College of Biological SciencesChina Agricultural University Beijing China
| | - Meijia Zhang
- State Key Laboratory for Agrobiotechnology, College of Biological SciencesChina Agricultural University Beijing China
| |
Collapse
|
14
|
Ozturk S. The translational functions of embryonic poly(A)‐binding protein during gametogenesis and early embryo development. Mol Reprod Dev 2019; 86:1548-1560. [DOI: 10.1002/mrd.23253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 07/26/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Saffet Ozturk
- Department of Histology and EmbryologyAkdeniz University School of MedicineAntalya Turkey
| |
Collapse
|
15
|
Uysal F, Ozturk S. Embryonic poly(A)‐binding protein is differently expressed and interacts with the messenger RNAs in the mouse oocytes and early embryos. J Cell Biochem 2018; 120:4694-4709. [DOI: 10.1002/jcb.27759] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/06/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Fatma Uysal
- Department of Histology and Embryology Akdeniz University School of Medicine Antalya Turkey
- Department of Histology and Embryology Ankara University School of Medicine Ankara Turkey
| | - Saffet Ozturk
- Department of Histology and Embryology Akdeniz University School of Medicine Antalya Turkey
| |
Collapse
|
16
|
Ozturk S, Uysal F. Poly(A)-binding proteins are required for translational regulation in vertebrate oocytes and early embryos. Reprod Fertil Dev 2018; 29:1890-1901. [PMID: 28103468 DOI: 10.1071/rd16283] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 12/01/2016] [Indexed: 12/22/2022] Open
Abstract
Poly(A)-binding proteins (PABPs) function in the timely regulation of gene expression during oocyte maturation, fertilisation and early embryo development in vertebrates. To this end, PABPs bind to poly(A) tails or specific sequences of maternally stored mRNAs to protect them from degradation and to promote their translational activities. To date, two structurally different PABP groups have been identified: (1) cytoplasmic PABPs, including poly(A)-binding protein, cytoplasmic 1 (PABPC1), embryonic poly(A)-binding protein (EPAB), induced PABP and poly(A)-binding protein, cytoplasmic 3; and (2) nuclear PABPs, namely embryonic poly(A)-binding protein 2 and nuclear poly(A)-binding protein 1. Many studies have been undertaken to characterise the spatial and temporal expression patterns and subcellular localisations of PABPC1 and EPAB in vertebrate oocytes and early embryos. In the present review, we comprehensively evaluate and discuss the expression patterns and particular functions of the EPAB and PABPC1 genes, especially in mouse and human oocytes and early embryos.
Collapse
Affiliation(s)
- Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Campus, 07070, Antalya, Turkey
| | - Fatma Uysal
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Campus, 07070, Antalya, Turkey
| |
Collapse
|
17
|
Ozturk S, Uysal F. Potential roles of the poly(A)-binding proteins in translational regulation during spermatogenesis. J Reprod Dev 2018; 64:289-296. [PMID: 29780056 PMCID: PMC6105736 DOI: 10.1262/jrd.2018-026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Spermatogenesis is briefly defined as the production of mature spermatozoa from spermatogonial stem cells at the end of a strictly regulated process. It is well known that, to a large
extent, transcriptional activity ceases at mid-spermiogenesis. Several mRNAs transcribed during early stages of spermatogenesis are stored as ribonucleoproteins (RNPs). During the later
stages, translational control of these mRNAs is mainly carried out in a time dependent-manner by poly(A)-binding proteins (PABPs) in cooperation with other RNA-binding proteins and
translation-related factors. Conserved PABPs specifically bind to poly(A) tails at the 3′ ends of mRNAs to regulate their translational activity in spermatogenic cells. Studies in this field
have revealed that PABPs, particularly poly(A)-binding protein cytoplasmic 1 (Pabpc1), Pabpc2, and the embryonic poly(A)-binding protein (Epab), play roles in the translational regulation of
mRNAs required at later stages of spermatogenesis. In this review article, we evaluated the spatial and temporal expression patterns and potential functions of these PABPs in spermatogenic
cells during spermatogenesis. The probable relationship between alterations in PABP expression and the development of male infertility is also reviewed.
Collapse
Affiliation(s)
- Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Antalya, Turkey
| | - Fatma Uysal
- Department of Histology and Embryology, Akdeniz University, School of Medicine, Antalya, Turkey
| |
Collapse
|
18
|
Rosa CO, Marinho LSR, da Rosa PRA, De Cesaro MP, Lunardelli PA, Silva-Santos KC, Basso AC, Bordignon V, Seneda MM. Molecular characteristics of granulosa and cumulus cells and oocyte competence in Nelore cows with low and high numbers of antral follicles. Reprod Domest Anim 2018; 53:921-929. [DOI: 10.1111/rda.13189] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 03/06/2018] [Indexed: 12/20/2022]
Affiliation(s)
- CO Rosa
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
| | - LSR Marinho
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
| | - PRA da Rosa
- Department of Large Animal Clinics; Laboratory of Biotechnology and Animal Reproduction-BioRep; Federal University of Santa Maria; Santa Maria Brazil
| | - MP De Cesaro
- Department of Large Animal Clinics; Laboratory of Biotechnology and Animal Reproduction-BioRep; Federal University of Santa Maria; Santa Maria Brazil
| | | | - KC Silva-Santos
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
| | - AC Basso
- In Vitro Brasil LTDA; Mogi Mirim Brazil
| | - V Bordignon
- Department of Animal Science; McGill University; Sainte Anne de Bellevue Canada
| | - MM Seneda
- Department of Veterinary Clinics; Laboratory of Biotechnology the Animal Reproduction-ReproA; State University of Londrina; Londrina Brazil
| |
Collapse
|
19
|
Miedlich SU, Taya M, Young MR, Hammes SR. Paxillin and embryonic PolyAdenylation Binding Protein (ePABP) engage to regulate androgen-dependent Xenopus laevis oocyte maturation - A model of kinase-dependent regulation of protein expression. Mol Cell Endocrinol 2017; 448:87-97. [PMID: 28359799 PMCID: PMC5500300 DOI: 10.1016/j.mce.2017.03.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 03/25/2017] [Accepted: 03/25/2017] [Indexed: 01/01/2023]
Abstract
Steroid-triggered Xenopus laevis oocyte maturation is an elegant physiologic model of nongenomic steroid signaling, as it proceeds completely independent of transcription. We previously demonstrated that androgens are the main physiologic stimulator of oocyte maturation in Xenopus oocytes, and that the adaptor protein paxillin plays a crucial role in mediating this process through a positive feedback loop in which paxillin first enhances Mos protein translation, ensued by Erk2 activation and Erk-dependent phosphorylation of paxillin on serine residues. Phosphoserine-paxillin then further augments Mos protein translation and downstream Erk2 activation, resulting in meiotic progression. We hypothesized that paxillin enhances Mos translation by interacting with embryonic PolyAdenylation Binding Protein (ePABP) on polyadenylated Mos mRNA. Knockdown of ePABP phenocopied paxillin knockdown, with reduced Mos protein expression, Erk2 and Cdk1 activation, as well as oocyte maturation. In both Xenopus oocytes and mammalian cells (HEK-293), paxillin and ePABP constitutively interacted. Testosterone (Xenopus) or EGF (HEK-293) augmented ePABP-paxillin binding, as well as ePABP binding to Mos mRNA (Xenopus), in an Erk-dependent fashion. Thus, ePABP and paxillin work together in an Erk-dependent fashion to enhance Mos protein translation and promote oocyte maturation.
Collapse
Affiliation(s)
- Susanne U Miedlich
- Division of Endocrinology and Metabolism, Department of Medicine, University of Rochester School of Medicine and Dentistry, Box 693, 601 Elmwood Ave, Rochester, NY 14642, USA.
| | - Manisha Taya
- Division of Endocrinology and Metabolism, Department of Medicine, University of Rochester School of Medicine and Dentistry, Box 693, 601 Elmwood Ave, Rochester, NY 14642, USA
| | - Melissa Rasar Young
- Department of Therapeutic Radiology, Smilow Cancer Hospital at Yale, Yale School of Medicine, 35 Park Street, New Haven, CT 06511, USA
| | - Stephen R Hammes
- Division of Endocrinology and Metabolism, Department of Medicine, University of Rochester School of Medicine and Dentistry, Box 693, 601 Elmwood Ave, Rochester, NY 14642, USA
| |
Collapse
|
20
|
Lowther KM, Favero F, Yang CR, Taylor HS, Seli E. Embryonic poly(A)-binding protein is required at the preantral stage of mouse folliculogenesis for oocyte-somatic communication. Biol Reprod 2017; 96:341-351. [PMID: 28203794 DOI: 10.1095/biolreprod.116.141234] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 11/18/2016] [Accepted: 12/12/2016] [Indexed: 12/16/2023] Open
Abstract
Embryonic poly(A)-binding protein (EPAB)-deficient mice are infertile due to defects in both the oocyte and the somatic cells of the ovary. Since EPAB is oocyte specific, the abnormalities in the somatic compartment of Epab−/− mice are likely due to factors inherent to the oocyte. Herein, we investigated whether oocyte–somatic communication is disrupted as a result of EPAB deficiency. We found that gap junctions are disrupted at the late preantral stage of folliculogenesis in Epab−/– mice and remain disrupted in cumulus-enclosed oocytes (COCs) from antral follicles. Consistent with the timing of gap junction dysfunction, F-actin staining of transzonal processes (TZPs) is lower in Epab−/− follicles at the late preantral stage and completely absent in Epab−/− COCs. Epab−/− oocytes express significantly lower levels of the junction protein E-cadherin, which is likely to be a contributing factor leading to premature TZP retraction. Overall, these results demonstrate that EPAB is important for oocyte–somatic communication by maintaining TZPs and gap junctions at the preantral stage of folliculogenesis.
Collapse
Affiliation(s)
- Katie M Lowther
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Federico Favero
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Cai-Rong Yang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan, China
- Key Laboratory of Crop Genetic Resources and Improvement, Ministry of Education, Sichuan Agricultural University, Wenjiang, Sichuan, China
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| | - Emre Seli
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, USA
| |
Collapse
|