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Veraguas-Dávila D, Zapata-Rojas C, Aguilera C, Saéz-Ruiz D, Saravia F, Castro FO, Rodriguez-Alvarez L. Proteomic Analysis of Domestic Cat Blastocysts and Their Secretome Produced in an In Vitro Culture System without the Presence of the Zona Pellucida. Int J Mol Sci 2024; 25:4343. [PMID: 38673927 PMCID: PMC11050229 DOI: 10.3390/ijms25084343] [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: 03/23/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Domestic cat blastocysts cultured without the zona pellucida exhibit reduced implantation capacity. However, the protein expression profile has not been evaluated in these embryos. The objective of this study was to evaluate the protein expression profile of domestic cat blastocysts cultured without the zona pellucida. Two experimental groups were generated: (1) domestic cat embryos generated by IVF and cultured in vitro (zona intact, (ZI)) and (2) domestic cat embryos cultured in vitro without the zona pellucida (zona-free (ZF group)). The cleavage, morula, and blastocyst rates were estimated at days 2, 5 and 7, respectively. Day 7 blastocysts and their culture media were subjected to liquid chromatography-tandem mass spectrometry (LC-MS/MS). The UniProt Felis catus database was used to identify the standard proteome. No significant differences were found in the cleavage, morula, or blastocyst rates between the ZI and ZF groups (p > 0.05). Proteomic analysis revealed 22 upregulated and 20 downregulated proteins in the ZF blastocysts. Furthermore, 14 proteins involved in embryo development and implantation were present exclusively in the culture medium of the ZI blastocysts. In conclusion, embryo culture without the zona pellucida did not affect in vitro development, but altered the protein expression profile and release of domestic cat blastocysts.
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Affiliation(s)
- Daniel Veraguas-Dávila
- Escuela de Medicina Veterinaria, Departamento de Ciencias Agrarias, Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Km 6 Los Niches, Curicó 3340000, Chile
- Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Méndez 595, Chillan 3780000, Chile; (C.Z.-R.); (D.S.-R.); (F.S.); (F.O.C.); (L.R.-A.)
| | - Camila Zapata-Rojas
- Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Méndez 595, Chillan 3780000, Chile; (C.Z.-R.); (D.S.-R.); (F.S.); (F.O.C.); (L.R.-A.)
| | - Constanza Aguilera
- School of Veterinary Medicine, Faculty of Natural Sciences, San Sebastián University, Concepción 4081339, Chile;
| | - Darling Saéz-Ruiz
- Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Méndez 595, Chillan 3780000, Chile; (C.Z.-R.); (D.S.-R.); (F.S.); (F.O.C.); (L.R.-A.)
| | - Fernando Saravia
- Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Méndez 595, Chillan 3780000, Chile; (C.Z.-R.); (D.S.-R.); (F.S.); (F.O.C.); (L.R.-A.)
| | - Fidel Ovidio Castro
- Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Méndez 595, Chillan 3780000, Chile; (C.Z.-R.); (D.S.-R.); (F.S.); (F.O.C.); (L.R.-A.)
| | - Lleretny Rodriguez-Alvarez
- Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Méndez 595, Chillan 3780000, Chile; (C.Z.-R.); (D.S.-R.); (F.S.); (F.O.C.); (L.R.-A.)
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Zhang W, Wu F. Effects of adverse fertility-related factors on mitochondrial DNA in the oocyte: a comprehensive review. Reprod Biol Endocrinol 2023; 21:27. [PMID: 36932444 PMCID: PMC10021953 DOI: 10.1186/s12958-023-01078-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/07/2023] [Indexed: 03/19/2023] Open
Abstract
The decline of oocyte quality has profound impacts on fertilization, implantation, embryonic development, and the genetic quality of future generations. One factor that is often ignored but is involved in the decline of oocyte quality is mitochondrial DNA (mtDNA) abnormalities. Abnormalities in mtDNA affect the energy production of mitochondria, the dynamic balance of the mitochondrial network, and the pathogenesis of mtDNA diseases in offspring. In this review, we have detailed the characteristics of mtDNA in oocytes and the maternal inheritance of mtDNA. Next, we summarized the mtDNA abnormalities in oocytes derived from aging, diabetes, obesity, and assisted reproductive technology (ART) in an attempt to further elucidate the possible mechanisms underlying the decline in oocyte health. Because multiple infertility factors are often involved when an individual is infertile, a comprehensive understanding of the individual effects of each infertility-related factor on mtDNA is necessary. Herein, we consider the influence of infertility-related factors on the mtDNA of the oocyte as a collective perspective for the first time, providing a supplementary angle and reference for multi-directional improvement strategies of oocyte quality in the future. In addition, we highlight the importance of studying ART-derived mitochondrial abnormalities during every ART procedure.
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Affiliation(s)
- Wenying Zhang
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Fuju Wu
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, Jilin, China.
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Application of Single-Cell RNA Sequencing in Ovarian Development. Biomolecules 2022; 13:biom13010047. [PMID: 36671432 PMCID: PMC9855652 DOI: 10.3390/biom13010047] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 12/28/2022] Open
Abstract
The ovary is a female reproductive organ that plays a key role in fertility and the maintenance of endocrine homeostasis, which is of great importance to women's health. It is characterized by a high heterogeneity, with different cellular subpopulations primarily containing oocytes, granulosa cells, stromal cells, endothelial cells, vascular smooth muscle cells, and diverse immune cell types. Each has unique and important functions. From the fetal period to old age, the ovary experiences continuous structural and functional changes, with the gene expression of each cell type undergoing dramatic changes. In addition, ovarian development strongly relies on the communication between germ and somatic cells. Compared to traditional bulk RNA sequencing techniques, the single-cell RNA sequencing (scRNA-seq) approach has substantial advantages in analyzing individual cells within an ever-changing and complicated tissue, classifying them into cell types, characterizing single cells, delineating the cellular developmental trajectory, and studying cell-to-cell interactions. In this review, we present single-cell transcriptome mapping of the ovary, summarize the characteristics of the important constituent cells of the ovary and the critical cellular developmental processes, and describe key signaling pathways for cell-to-cell communication in the ovary, as revealed by scRNA-seq. This review will undoubtedly improve our understanding of the characteristics of ovarian cells and development, thus enabling the identification of novel therapeutic targets for ovarian-related diseases.
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Derisoud E, Jouneau L, Dubois C, Archilla C, Jaszczyszyn Y, Legendre R, Daniel N, Peynot N, Dahirel M, Auclair-Ronzaud J, Wimel L, Duranthon V, Chavatte-Palmer P. Maternal age affects equine day 8 embryo gene expression both in trophoblast and inner cell mass. BMC Genomics 2022; 23:443. [PMID: 35705916 PMCID: PMC9199136 DOI: 10.1186/s12864-022-08593-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Breeding a mare until she is not fertile or even until her death is common in equine industry but the fertility decreases as the mare age increases. Embryo loss due to reduced embryo quality is partly accountable for this observation. Here, the effect of mare's age on blastocysts' gene expression was explored. Day 8 post-ovulation embryos were collected from multiparous young (YM, 6-year-old, N = 5) and older (OM, > 10-year-old, N = 6) non-nursing Saddlebred mares, inseminated with the semen of one stallion. Pure or inner cell mass (ICM) enriched trophoblast, obtained by embryo bisection, were RNA sequenced. Deconvolution algorithm was used to discriminate gene expression in the ICM from that in the trophoblast. Differential expression was analyzed with embryo sex and diameter as cofactors. Functional annotation and classification of differentially expressed genes and gene set enrichment analysis were also performed. RESULTS Maternal aging did not affect embryo recovery rate, embryo diameter nor total RNA quantity. In both compartments, the expression of genes involved in mitochondria and protein metabolism were disturbed by maternal age, although more genes were affected in the ICM. Mitosis, signaling and adhesion pathways and embryo development were decreased in the ICM of embryos from old mares. In trophoblast, ion movement pathways were affected. CONCLUSIONS This is the first study showing that maternal age affects gene expression in the equine blastocyst, demonstrating significant effects as early as 10 years of age. These perturbations may affect further embryo development and contribute to decreased fertility due to aging.
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Affiliation(s)
- Emilie Derisoud
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France.
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France.
| | - Luc Jouneau
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Cédric Dubois
- IFCE, Plateau technique de Chamberet, 19370, Chamberet, France
| | - Catherine Archilla
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Yan Jaszczyszyn
- Institute for Integrative Biology of the Cell (I2BC), UMR 9198 CNRS, CEA, Paris-Sud University F-91198, Gif-sur-Yvette, France
| | - Rachel Legendre
- Institut Pasteur-Bioinformatics and Biostatistics Hub-Department of Computational Biology, Paris, France
| | - Nathalie Daniel
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Nathalie Peynot
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Michèle Dahirel
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | | | - Laurence Wimel
- IFCE, Plateau technique de Chamberet, 19370, Chamberet, France
| | - Véronique Duranthon
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - Pascale Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France.
- Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France.
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Derisoud E, Auclair-Ronzaud J, Palmer E, Robles M, Chavatte-Palmer P. Female age and parity in horses: how and why does it matter? Reprod Fertil Dev 2021; 34:52-116. [PMID: 35231230 DOI: 10.1071/rd21267] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Although puberty can occur as early as 14-15months of age, depending on breed and use, the reproductive career of mares may continue to advanced ages. Once mares are used as broodmares, they will usually produce foals once a year until they become unfertile, and their productivity can be enhanced and/or prolonged through embryo technologies. There is a general consensus that old mares are less fertile, but maternal age and parity are confounding factors because nulliparous mares are usually younger and older mares are multiparous in most studies. This review shows that age critically affects cyclicity, folliculogenesis, oocyte and embryo quality as well as presence of oviductal masses and uterine tract function. Maternal parity has a non-linear effect. Primiparity has a major influence on placental and foal development, with smaller foals at the first gestation that remain smaller postnatally. After the first gestation, endometrial quality and uterine clearance capacities decline progressively with increasing parity and age, whilst placental and foal birthweight and milk production increase. These combined effects should be carefully balanced when breeding mares, in particular when choosing and caring for recipients and their foals.
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Affiliation(s)
- Emilie Derisoud
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; and Ecole Nationale Vétérinaire d'Alfort, BREED, 94700 Maisons-Alfort, France
| | | | - Eric Palmer
- Académie d'Agriculture de France, 75007 Paris, France
| | - Morgane Robles
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; and Ecole Nationale Vétérinaire d'Alfort, BREED, 94700 Maisons-Alfort, France; and INRS Centre Armand-Frappier Santé Biotechnologie, 531 Boulevard des Prairies, H7V 1B7 Laval, QC, Canada
| | - Pascale Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; and Ecole Nationale Vétérinaire d'Alfort, BREED, 94700 Maisons-Alfort, France
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Emerging methods for and novel insights gained by absolute quantification of mitochondrial DNA copy number and its clinical applications. Pharmacol Ther 2021; 232:107995. [PMID: 34592204 DOI: 10.1016/j.pharmthera.2021.107995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/26/2021] [Accepted: 09/01/2021] [Indexed: 02/07/2023]
Abstract
The past thirty years have seen a surge in interest in pathophysiological roles of mitochondria, and the accurate quantification of mitochondrial DNA copy number (mCN) in cells and tissue samples is a fundamental aspect of assessing changes in mitochondrial health and biogenesis. Quantification of mCN between studies is surprisingly variable due to a combination of physiological variability and diverse protocols being used to measure this endpoint. The advent of novel methods to quantify nucleic acids like digital polymerase chain reaction (dPCR) and high throughput sequencing offer the ability to measure absolute values of mCN. We conducted an in-depth survey of articles published between 1969 -- 2020 to create an overview of mCN values, to assess consensus values of tissue-specific mCN, and to evaluate consistency between methods of assessing mCN. We identify best practices for methods used to assess mCN, and we address the impact of using specific loci on the mitochondrial genome to determine mCN. Current data suggest that clinical measurement of mCN can provide diagnostic and prognostic value in a range of diseases and health conditions, with emphasis on cancer and cardiovascular disease, and the advent of means to measure absolute mCN should improve future clinical applications of mCN measurements.
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Benammar A, Derisoud E, Vialard F, Palmer E, Ayoubi JM, Poulain M, Chavatte-Palmer P. The Mare: A Pertinent Model for Human Assisted Reproductive Technologies? Animals (Basel) 2021; 11:2304. [PMID: 34438761 PMCID: PMC8388489 DOI: 10.3390/ani11082304] [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: 06/27/2021] [Revised: 07/28/2021] [Accepted: 08/01/2021] [Indexed: 12/12/2022] Open
Abstract
Although there are large differences between horses and humans for reproductive anatomy, follicular dynamics, mono-ovulation, and embryo development kinetics until the blastocyst stage are similar. In contrast to humans, however, horses are seasonal animals and do not have a menstrual cycle. Moreover, horse implantation takes place 30 days later than in humans. In terms of artificial reproduction techniques (ART), oocytes are generally matured in vitro in horses because ovarian stimulation remains inefficient. This allows the collection of oocytes without hormonal treatments. In humans, in vivo matured oocytes are collected after ovarian stimulation. Subsequently, only intra-cytoplasmic sperm injection (ICSI) is performed in horses to produce embryos, whereas both in vitro fertilization and ICSI are applied in humans. Embryos are transferred only as blastocysts in horses. In contrast, four cells to blastocyst stage embryos are transferred in humans. Embryo and oocyte cryopreservation has been mastered in humans, but not completely in horses. Finally, both species share infertility concerns due to ageing and obesity. Thus, reciprocal knowledge could be gained through the comparative study of ART and infertility treatments both in woman and mare, even though the horse could not be used as a single model for human ART.
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Affiliation(s)
- Achraf Benammar
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; (A.B.); (E.D.); (F.V.); (J.M.A.); (M.P.)
- Ecole Nationale Vétérinaire d’Alfort, BREED, 94700 Maisons-Alfort, France
- Department of Gynaecology and Obstetrics, Foch Hospital, 92150 Suresnes, France
| | - Emilie Derisoud
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; (A.B.); (E.D.); (F.V.); (J.M.A.); (M.P.)
- Ecole Nationale Vétérinaire d’Alfort, BREED, 94700 Maisons-Alfort, France
| | - François Vialard
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; (A.B.); (E.D.); (F.V.); (J.M.A.); (M.P.)
- Ecole Nationale Vétérinaire d’Alfort, BREED, 94700 Maisons-Alfort, France
| | - Eric Palmer
- Académie d’Agriculture de France, 75007 Paris, France;
| | - Jean Marc Ayoubi
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; (A.B.); (E.D.); (F.V.); (J.M.A.); (M.P.)
- Ecole Nationale Vétérinaire d’Alfort, BREED, 94700 Maisons-Alfort, France
- Department of Gynaecology and Obstetrics, Foch Hospital, 92150 Suresnes, France
| | - Marine Poulain
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; (A.B.); (E.D.); (F.V.); (J.M.A.); (M.P.)
- Ecole Nationale Vétérinaire d’Alfort, BREED, 94700 Maisons-Alfort, France
- Department of Gynaecology and Obstetrics, Foch Hospital, 92150 Suresnes, France
| | - Pascale Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; (A.B.); (E.D.); (F.V.); (J.M.A.); (M.P.)
- Ecole Nationale Vétérinaire d’Alfort, BREED, 94700 Maisons-Alfort, France
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Catandi GD, Obeidat YM, Broeckling CD, Chen TW, Chicco AJ, Carnevale EM. Equine maternal aging affects oocyte lipid content, metabolic function and developmental potential. Reproduction 2021; 161:399-409. [PMID: 33539317 PMCID: PMC7969451 DOI: 10.1530/rep-20-0494] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 02/04/2021] [Indexed: 12/20/2022]
Abstract
Advanced maternal age is associated with a decline in fertility and oocyte quality. We used novel metabolic microsensors to assess effects of mare age on single oocyte and embryo metabolic function, which has not yet been similarly investigated in mammalian species. We hypothesized that equine maternal aging affects the metabolic function of oocytes and in vitro-produced early embryos, oocyte mitochondrial DNA (mtDNA) copy number, and relative abundance of metabolites involved in energy metabolism in oocytes and cumulus cells. Samples were collected from preovulatory follicles from young (≤14 years) and old (≥20 years) mares. Relative abundance of metabolites in metaphase II oocytes (MII) and their respective cumulus cells, detected by liquid and gas chromatography coupled to mass spectrometry, revealed that free fatty acids were less abundant in oocytes and more abundant in cumulus cells from old vs young mares. Quantification of aerobic and anaerobic metabolism, respectively measured as oxygen consumption rate (OCR) and extracellular acidification rate (ECAR) in a microchamber containing oxygen and pH microsensors, demonstrated reduced metabolic function and capacity in oocytes and day-2 embryos originating from oocytes of old when compared to young mares. In mature oocytes, mtDNA was quantified by real-time PCR and was not different between the age groups and not indicative of mitochondrial function. Significantly more sperm-injected oocytes from young than old mares resulted in blastocysts. Our results demonstrate a decline in oocyte and embryo metabolic activity that potentially contributes to the impaired developmental competence and fertility in aged females.
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Affiliation(s)
- Giovana D Catandi
- Equine Reproduction Laboratory, Department of Biomedical Sciences, Colorado State University, 3101 Rampart Road, Fort Collins, CO 80521, USA
| | - Yusra M Obeidat
- Electronic Engineering Department, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid, P.O. 21163, Jordan
| | - Corey D Broeckling
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO 80523, USA
| | - Thomas W Chen
- Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 8523, USA
| | - Adam J Chicco
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Elaine M Carnevale
- Equine Reproduction Laboratory, Department of Biomedical Sciences, Colorado State University, 3101 Rampart Road, Fort Collins, CO 80521, USA
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Rizzo M, du Preez N, Ducheyne KD, Deelen C, Beitsma MM, Stout TAE, de Ruijter-Villani M. The horse as a natural model to study reproductive aging-induced aneuploidy and weakened centromeric cohesion in oocytes. Aging (Albany NY) 2020; 12:22220-22232. [PMID: 33139583 PMCID: PMC7695376 DOI: 10.18632/aging.104159] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 09/14/2020] [Indexed: 12/14/2022]
Abstract
Aneuploidy of meiotic origin is a major contributor to age-related subfertility and an increased risk of miscarriage in women. Although age-related aneuploidy has been studied in rodents, the mare may be a more appropriate animal model to study reproductive aging. Similar to women, aged mares show reduced fertility and an increased incidence of early pregnancy loss; however, it is not known whether aging predisposes to aneuploidy in equine oocytes. We evaluated the effect of advanced mare age on (1) gene expression for cohesin components, (2) incidence of aneuploidy and (3) chromosome centromere cohesion (measured as the distance between sister kinetochores) in oocytes matured in vitro. Oocytes from aged mares showed reduced gene expression for the centromere cohesion stabilizing protein, Shugoshin 1. Moreover, in vitro matured oocytes from aged mares showed a higher incidence of aneuploidy and premature sister chromatid separation, and weakened centromeric cohesion. We therefore propose the mare as a valid model for studying effects of aging on centromeric cohesion; cohesion loss predisposes to disintegration of bivalents and premature separation of sister chromatids during the first meiotic division, leading to embryonic aneuploidy; this probably contributes to the reduced fertility and increased incidence of pregnancy loss observed in aged mares.
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Affiliation(s)
- Marilena Rizzo
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Nikola du Preez
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Kaatje D. Ducheyne
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
- Sussex Equine Hospital, Ashington, RH20 3BB, United Kingdom
| | - Claudia Deelen
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Mabel M. Beitsma
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
| | - Tom A. E. Stout
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
- Department of Production Animal Studies, University of Pretoria, Pretoria, 0110, South Africa
| | - Marta de Ruijter-Villani
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CM, the Netherlands
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10
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Sánchez-Calabuig MJ, Fernández-González R, Hamdi M, Smits K, López-Cardona AP, Serres C, Macías-García B, Gutiérrez-Adán A. A high glucose concentration during early stages of in vitro equine embryo development alters expression of genes involved in glucose metabolism. Equine Vet J 2020; 53:787-795. [PMID: 32881040 DOI: 10.1111/evj.13342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 07/17/2020] [Accepted: 08/27/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND Equine embryos exhibit an unusual pattern of glucose tolerance in vitro and are currently cultured in hyperglycaemic conditions. OBJECTIVE Our main objective was to analyse the effect of different glucose concentrations on in vitro-produced equine embryo development and quality. STUDY DESIGN Experiments comparing in vitro and in vivo produced embryos. METHODS Oocytes (n = 641) were collected from post-mortem ovaries, matured in vitro and fertilised by intracytoplasmic sperm injection (ICSI). Embryo culture was divided from Day 0 to Day 4 and from Day 4 to Day 9 in three groups: 5-10 (5 and 10 mmol/L glucose respectively; n = 87); 5-17 (5 and 17.5 mmol/L; n = 66); and 10-17 (10 and 17.5 mmol/L; n = 117). A control group of 20 in vivo produced blastocysts was included. Cleavage and blastocyst rates were evaluated and embryos were snap-frozen for analysis of the relative mRNA expression of genes related to mitochondrial function, DNA methylation, apoptosis, glucose transport and metabolism. RESULTS No differences were observed in the cleavage or blastocyst rates among in vitro groups. Under high glucose conditions in vitro (10-17 group), BAX/BCL2 was higher, and PFKP, LDHA and COX2 were overexpressed compared to all other groups. The two groups with 5 mmol/L glucose concentration during the first culture stage (5-10 and 5-17) displayed similar patterns which differed to the 10-17 group. MAIN LIMITATIONS Conclusions related to embryo quality are based on gene expression patterns. Transfer of in vitro-produced embryos would reveal whether the observed differences improve embryo developmental competence. CONCLUSIONS Five mM glucose during the first days of culture seems to be preferable to avoid over-activation of embryonic glycolytic pathways. Further studies are necessary to determine whether this improves embryo developmental competence.
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Affiliation(s)
- María J Sánchez-Calabuig
- Department of Animal Medicine and Surgery, Faculty of Veterinary Science, University Complutense of Madrid, Madrid, Spain.,Department of Animal Reproduction, INIA, Madrid, Spain
| | | | - Meriem Hamdi
- Department of Animal Reproduction, INIA, Madrid, Spain
| | - Katrien Smits
- Department of Obstetrics, Reproduction and Herd Health, Ghent University, Ghent, Belgium
| | - Angela P López-Cardona
- Department of Animal Reproduction, INIA, Madrid, Spain.,Grupo de Investigación (GI) - Biogénesis, Universidad de Antioquia, Medellín, Colombia
| | - Consuelo Serres
- Department of Animal Medicine and Surgery, Faculty of Veterinary Science, University Complutense of Madrid, Madrid, Spain
| | - Beatriz Macías-García
- Animal Medicine Department, Faculty of Veterinary Sciences, University of Extremadura, Cáceres, Spain.,Research Group of Intracellular Signalling and Technology of Reproduction (SINTREP), Research Institute of Biotechnology in Livestock and Cynegetic (INBIO G+C), University of Extremadura, Cáceres, Spain
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11
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Mengel-From J, Svane AM, Pertoldi C, Nygaard Kristensen T, Loeschcke V, Skytthe A, Christensen K, Lindahl-Jacobsen R, Hjelmborg J, Christiansen L. Advanced Parental Age at Conception and Sex Affects Mitochondrial DNA Copy Number in Human and Fruit Flies. J Gerontol A Biol Sci Med Sci 2020; 74:1853-1860. [PMID: 30874797 DOI: 10.1093/gerona/glz070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 03/08/2019] [Indexed: 11/13/2022] Open
Abstract
Aging is a multifactorial trait caused by early as well as late-life circumstances. A society trend that parents deliberately delay having children is of concern to health professionals, for example as advanced parental age at conception increases disease risk profiles in offspring. We here aim to study if advanced parental age at conception affects mitochondrial DNA content, a cross-species biomarker of general health, in adult human twin offspring and in a model organism. We find no deteriorated mitochondrial DNA content at advanced parental age at conception, but human mitochondrial DNA content was higher in females than males, and the difference was twofold higher at advanced maternal age at conception. Similar parental age effects and sex-specific differences in mitochondrial DNA content were found in Drosophila melanogaster. In addition, parental longevity in humans associates with both mitochondrial DNA content and parental age at conception; thus, we carefully propose that a poorer disease risk profile from advanced parental age at conception might be surpassed by superior effects of parental successful late-life reproduction that associate with parental longevity.
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Affiliation(s)
- Jonas Mengel-From
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology and Biostatistics Unit, Institute of Public Health, University of Southern Denmark, Odense.,Department of Clinical Genetics, Odense University Hospital
| | - Anne Marie Svane
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology and Biostatistics Unit, Institute of Public Health, University of Southern Denmark, Odense
| | - Cino Pertoldi
- Section of Biology and Environmental Science, Department of Chemistry and Bioscience, Aalborg University.,Aalborg Zoo, Aarhus University, Denmark
| | - Torsten Nygaard Kristensen
- Section of Biology and Environmental Science, Department of Chemistry and Bioscience, Aalborg University.,Department of Bioscience, Aarhus University, Denmark
| | | | - Axel Skytthe
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology and Biostatistics Unit, Institute of Public Health, University of Southern Denmark, Odense
| | - Kaare Christensen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology and Biostatistics Unit, Institute of Public Health, University of Southern Denmark, Odense.,Department of Clinical Genetics, Odense University Hospital
| | - Rune Lindahl-Jacobsen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology and Biostatistics Unit, Institute of Public Health, University of Southern Denmark, Odense
| | - Jacob Hjelmborg
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology and Biostatistics Unit, Institute of Public Health, University of Southern Denmark, Odense
| | - Lene Christiansen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology and Biostatistics Unit, Institute of Public Health, University of Southern Denmark, Odense.,Department of Clinical Genetics, Odense University Hospital
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12
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Hendriks WK, Colleoni S, Galli C, Paris DBBP, Colenbrander B, Stout TAE. Mitochondrial DNA replication is initiated at blastocyst formation in equine embryos. Reprod Fertil Dev 2019; 31:570-578. [PMID: 30423285 DOI: 10.1071/rd17387] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 09/13/2018] [Indexed: 11/23/2022] Open
Abstract
Intracytoplasmic sperm injection is the technique of choice for equine IVF and, in a research setting, 18-36% of injected oocytes develop to blastocysts. However, blastocyst development in clinical programs is lower, presumably due to a combination of variable oocyte quality (e.g. from old mares), suboptimal culture conditions and marginal fertility of some stallions. Furthermore, mitochondrial constitution appears to be critical to developmental competence, and both maternal aging and invitro embryo production (IVEP) negatively affect mitochondrial number and function in murine and bovine embryos. The present study examined the onset of mitochondrial (mt) DNA replication in equine embryos and investigated whether IVEP affects the timing of this important event, or the expression of genes required for mtDNA replication (i.e. mitochondrial transcription factor (TFAM), mtDNA polymerase γ subunit B (mtPOLB) and single-stranded DNA binding protein (SSB)). We also investigated whether developmental arrest was associated with low mtDNA copy number. mtDNA copy number increased (P<0.01) between the early and expanded blastocyst stages both invivo and invitro, whereas the mtDNA:total DNA ratio was higher in invitro-produced embryos (P=0.041). Mitochondrial replication was preceded by an increase in TFAM but, unexpectedly, not mtPOLB or SSB expression. There was no association between embryonic arrest and lower mtDNA copy numbers.
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Affiliation(s)
- W Karin Hendriks
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 114, 3584CM Utrecht, Netherlands
| | - Silvia Colleoni
- Avantea, Laboratorio di Technologie della Riproduzione, Via Porcellasco 7f, 26100 Cremona, Italy
| | - Cesare Galli
- Avantea, Laboratorio di Technologie della Riproduzione, Via Porcellasco 7f, 26100 Cremona, Italy
| | - Damien B B P Paris
- Discipline of Biomedical Science, College of Public Health, Medical and Veterinary Sciences, James Cook University, Solander Drive, Townsville, Qld 4811, Australia
| | - Ben Colenbrander
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 114, 3584CM Utrecht, Netherlands
| | - Tom A E Stout
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 114, 3584CM Utrecht, Netherlands
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13
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Gérard N, Robin E. Cellular and molecular mechanisms of the preovulatory follicle differenciation and ovulation: What do we know in the mare relative to other species. Theriogenology 2019; 130:163-176. [PMID: 30921545 DOI: 10.1016/j.theriogenology.2019.03.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/19/2019] [Accepted: 03/14/2019] [Indexed: 02/06/2023]
Abstract
Terminal follicular differentiation and ovulation are essential steps of reproduction. They are induced by the increase in circulating LH, and lead to the expulsion from the ovary of oocytes ready to be fertilized. This review summarizes our current understanding of cellular and molecular pathways that control ovulation using a broad mammalian literature, with a specific focus to the mare, which is unique in some aspects of ovarian function in some cases. Essential steps and key factors are approached. The first part of this review concerns LH, receptors and signaling, addressing the description of the equine gonadotropin and cloning, signaling pathways that are activated following the binding of LH to its receptors, and implication of transcription factors which better known are CCAAT-enhancer-binding proteins (CEBP) and cAMP response element-binding protein (CREB). The second and major part is devoted to the cellular and molecular actors within follicular cells during preovulatory maturation. We relate to 1) molecules involved in vascular permeability and vasoconstriction, 2) involvement of neuropeptides, such as kisspeptin, neurotrophins and neuronal growth factor, neuropeptide Y (NPY), 3) the modification of steroidogenesis, steroids intrafollicular levels and enzymes activity, 4) the local inflammation, with the increase in prostaglandins synthesis, and implication of leukotrienes, cytokines and glucocorticoids, 5) extracellular matrix remodelling with involvement of proteases, antiproteases and inhibitors, as well as relaxin, and finaly 6) the implication of oxytocine, osteopontin, growth factors and reactive oxygen species. The third part describes our current knowledge on molecular aspect of in vivo cumulus-oocyte-complexe maturation, with a specific focus on signaling pathways, paracrine factors, and intracellular regulations that occur in cumulus cells during expansion, and in the oocyte during nuclear and cytoplasmic meiosis resumption. Our aim was to give an overall and comprehensive map of the regulatory mechanisms that intervene within the preovulatory follicle during differentiation and ovulation.
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Affiliation(s)
- Nadine Gérard
- PRC, INRA, CNRS, IFCE, Université de Tours, 37380, Nouzilly, France.
| | - Elodie Robin
- PRC, INRA, CNRS, IFCE, Université de Tours, 37380, Nouzilly, France
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14
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ATP synthase is required for male fertility and germ cell maturation in Drosophila testes. Mol Med Rep 2019; 19:1561-1570. [PMID: 30628672 PMCID: PMC6390039 DOI: 10.3892/mmr.2019.9834] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 11/08/2018] [Indexed: 01/29/2023] Open
Abstract
Germ cell maturation is essential for spermatogenesis and testis homeostasis. ATP synthase serves significant roles in energy storage in germ cell survival and is catalyzed by alterations in the mitochondrial membrane proton concentration. The intrinsic cellular mechanisms governing stem cell maturation remain largely unknown. In the present study, in vivo RNA interference (RNAi) screening of major ATP synthase subunits was performed, and the function of ATP synthase for male fertility and spermatogenesis in Drosophila was explored. A Upstream Activation Sequence/Gal4 transcription factor system was used to knock down gene expression in specific cell types, and immunofluorescence staining was conducted to assess the roles of ATP synthase subunits in Drosophila testes. It was identified that knockdown of ATP synthase resulted in male infertility and abnormal spermatogenesis in Drosophila testes. In addition, knockdown of the ATP synthase β subunit in germ cells resulted in defects in male infertility and germ cell maturation, while the hub and cyst cell populations were maintained. Other major ATP synthase subunits were also examined and similar phenotypes in Drosophila testes were identified. Taken together, the data from the present study revealed that ATP synthase serves important roles for male fertility during spermatogenesis by regulating germ cell maturation in Drosophila testes.
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15
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Cuervo-Arango J, Claes AN, Stout TAE. In vitro-produced horse embryos exhibit a very narrow window of acceptable recipient mare uterine synchrony compared with in vivo-derived embryos. Reprod Fertil Dev 2019; 31:1904-1911. [PMID: 31587698 DOI: 10.1071/rd19294] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/11/2019] [Indexed: 11/23/2022] Open
Abstract
In recent years, the number of equine invitro-produced embryos (IVP) has increased markedly; as yet, there are few reports on what constitutes an 'ideal' recipient for an IVP embryo. This study retrospectively investigated the effects of recipient mare oestrous cycle characteristics on the likelihood of pregnancy after transfer of IVP (n=264) and invivo-derived embryos (n=262). IVP embryos tolerated only a narrow window of recipient mare 'synchrony', with transfer on Day 4 after ovulation resulting in a higher likelihood of ongoing pregnancy (69%) than transfer on Days 3, 5 or 6 (53.2%, 41.3% and 23.1% respectively; P=0.02). In contrast, Day 8 invivo-derived embryos tolerated a wide range of uterine (a)synchrony, with no difference in pregnancy or pregnancy loss for recipients that ovulated between Day 4 and Day 9 before transfer. However, transferring invivo-derived embryos to recipients that had a longer oestrus preceding transfer resulted in higher Day 12 and ongoing pregnancy rate (P<0.01). This effect was not significant in IVP embryos. In conclusion, Day 6-8 IVP blastocysts survive best after transfer to Day 4 recipient mares; Day 8 invivo-derived embryos survive equally well in Day 4-9 recipients, but do better in mares that have a long preceding oestrus.
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Affiliation(s)
- Juan Cuervo-Arango
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, 3584 CM Utrecht, Netherlands; and Corresponding author.
| | - Anthony N Claes
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, 3584 CM Utrecht, Netherlands
| | - Tom A E Stout
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 112, 3584 CM Utrecht, Netherlands
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16
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Jing Y, Li L, Li Y, Ouyang Y, Sun Q, Zhang C, Li R. Embryo quality, and not chromosome nondiploidy, affects mitochondrial DNA content in mouse blastocysts. J Cell Physiol 2018; 234:10481-10488. [PMID: 30480815 DOI: 10.1002/jcp.27713] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 10/16/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Ying Jing
- Reproductive Medicine Center, The People's Hospital of Zhengzhou University Zhengzhou China
- Reproductive Medicine Center, The People's Hospital of Henan Province Zhengzhou China
- State Key Laboratory of Stem Cell and Reproductive Biology Institute of Zoology, Chinese Academy of Sciences Beijing China
| | - Li Li
- State Key Laboratory of Stem Cell and Reproductive Biology Institute of Zoology, Chinese Academy of Sciences Beijing China
| | - Yuan‐Yuan Li
- State Key Laboratory of Stem Cell and Reproductive Biology Institute of Zoology, Chinese Academy of Sciences Beijing China
| | - Ying‐Chun Ouyang
- State Key Laboratory of Stem Cell and Reproductive Biology Institute of Zoology, Chinese Academy of Sciences Beijing China
| | - Qing‐Yuan Sun
- State Key Laboratory of Stem Cell and Reproductive Biology Institute of Zoology, Chinese Academy of Sciences Beijing China
| | - Cui‐Lian Zhang
- Reproductive Medicine Center, The People's Hospital of Zhengzhou University Zhengzhou China
- Reproductive Medicine Center, The People's Hospital of Henan Province Zhengzhou China
| | - Rong Li
- Department of Obstetrics and Gynecology Center for Reproductive Medicine, Peking University Third Hospital Beijing China
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17
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Rizzo M, Ducheyne KD, Deelen C, Beitsma M, Cristarella S, Quartuccio M, Stout TAE, de Ruijter-Villani M. Advanced mare age impairs the ability of in vitro-matured oocytes to correctly align chromosomes on the metaphase plate. Equine Vet J 2018; 51:252-257. [PMID: 30025174 PMCID: PMC6585749 DOI: 10.1111/evj.12995] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/30/2018] [Indexed: 01/26/2023]
Abstract
Background Advanced mare age is associated with declining fertility and an increased risk of early pregnancy loss. Compromised oocyte quality is probably the primary reason for reduced fertility, but the defects predisposing to embryonic death are unknown. In women, advanced age predisposes to chromosome segregation errors during meiosis, which lead to embryonic aneuploidy and a heightened risk of miscarriage. Objectives To evaluate the effect of advanced mare age on chromosome alignment and meiotic spindle morphology in in vitro‐matured (IVM) oocytes. Study design Morphometric and morphological analysis. Methods To investigate differences in spindle organisation and chromosome alignment between young and old mares, oocytes collected from slaughtered mares were divided into two groups depending on mare age (young, ≤14 years and old, ≥16 years), IVM and stained to visualise chromatin and alpha‐tubulin. Spindle morphology, morphometry and chromosome (mis)alignment were evaluated by confocal microscopy and 3D image analysis. Results Oocytes from old mares showed a higher incidence of chromosome misalignment (47.4% vs. 4.5%; P<0.001) and a thicker metaphase plate (mean ± s.d.: 5.8 ± 1.0 μm vs. 4.9 ± 0.9 μm; P = 0.04) than oocytes from young mares. Although no differences in spindle morphometry were detected between old and young mares, an increased major spindle axis length was associated with chromosome misalignment (mean ± s.d.: 25.3 ± 6.1 μm vs. 20.8 ± 3.3 μm; P = 0.01) irrespective of age. Main limitations The oocytes were IVM and may not exactly reflect chromosome misalignment in vivo. Conclusions Advanced mare age predisposes to chromosome misalignment on the metaphase II spindle of IVM oocytes. The compromised ability to correctly align chromosomes presumably predisposes to aneuploidy in resulting embryos and thereby contributes to the age‐related decline in fertility and increased incidence of early pregnancy loss. The Summary is available in Portuguese – see Supporting Information
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Affiliation(s)
- M Rizzo
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands.,Department of Veterinary Sciences, Messina University, Messina, Italy
| | - K D Ducheyne
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands.,Department of Veterinary Medical Imaging and Small Animal Orthopaedics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - C Deelen
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - M Beitsma
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - S Cristarella
- Department of Veterinary Sciences, Messina University, Messina, Italy
| | - M Quartuccio
- Department of Veterinary Sciences, Messina University, Messina, Italy
| | - T A E Stout
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - M de Ruijter-Villani
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
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18
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Spacek SG, Carnevale EM. Impact of Equine and Bovine Oocyte Maturation in Follicular Fluid From Young and Old Mares on Embryo Production in Vitro. J Equine Vet Sci 2018; 68:94-100. [PMID: 31256896 DOI: 10.1016/j.jevs.2018.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 04/03/2018] [Accepted: 04/30/2018] [Indexed: 01/10/2023]
Abstract
Equine follicular fluid (FF) provides autocrine and paracrine factors from theca, granulosa, and cumulus cells, both reflecting and impacting oocyte and follicle maturation. We hypothesized that maturation of oocytes in FF from old versus young mares has a deleterious effect on oocyte maturation and their subsequent developmental potential. Follicular fluid was collected from the large, dominant follicle from young mares (4-13 years) or old mares (21-26 years) and classified as: (1) Noninduced follicular fluid (NFF), FF from noninduced follicle 33 ± 3 mm, or (2) Induced follicular fluid (IFF), FF collected ∼24 hours after administration of ovulation-inducing drugs when a follicle 33 ± 3 mm was observed. In experiment 1, immature equine oocytes were collected, matured in vitro for 30 ± 2 hours in 100% IFF, collected from young or old mares, with the addition of follicle stimulating hormone (5 mU/mL), then fertilized by intracytoplasmic sperm injection. In experiment 2, immature bovine oocytes were collected, matured in 100% IFF or NFF, collected from young mares or old mares, then fertilized via in vitro fertilization. In experiment 1, more blastocysts tended (P = .08) to be produced from equine oocytes that were matured in old versus young mare FF. In experiment 2, when IFF and NFF groups were combined, cleavage rates were higher (P = .001) when bovine oocytes were matured in FF from young than old mares. In contrast to our hypothesis, we observed no conclusive evidence that FF from old mares has a deleterious impact on oocytes and their early developmental potential.
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Affiliation(s)
- Sheila G Spacek
- Equine Reproduction Lab, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO
| | - Elaine M Carnevale
- Equine Reproduction Lab, Department of Biomedical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO.
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19
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Morris LHA. The development of in vitro embryo production in the horse. Equine Vet J 2018; 50:712-720. [DOI: 10.1111/evj.12839] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 03/22/2018] [Indexed: 11/29/2022]
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20
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Swegen A, Grupen CG, Gibb Z, Baker MA, Ruijter‐Villani M, Smith ND, Stout TAE, Aitken RJ. From Peptide Masses to Pregnancy Maintenance: A Comprehensive Proteomic Analysis of The Early Equine Embryo Secretome, Blastocoel Fluid, and Capsule. Proteomics 2017; 17. [DOI: 10.1002/pmic.201600433] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 07/19/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Aleona Swegen
- Priority Research Centre in Reproductive Science University of Newcastle Callaghan NSW Australia
| | - Christopher G. Grupen
- Faculty of Veterinary Science School of Life and Environmental Sciences University of Sydney Camden NSW Australia
| | - Zamira Gibb
- Priority Research Centre in Reproductive Science University of Newcastle Callaghan NSW Australia
| | - Mark A. Baker
- Priority Research Centre in Reproductive Science University of Newcastle Callaghan NSW Australia
| | - Marta Ruijter‐Villani
- Department of Equine Sciences Faculty of Veterinary Medicine Utrecht University Utrecht the Netherlands
| | - Nathan D. Smith
- Analytical and Biomolecular Research Facility University of Newcastle Callaghan NSW Australia
| | - Tom A. E. Stout
- Department of Equine Sciences Faculty of Veterinary Medicine Utrecht University Utrecht the Netherlands
| | - R. John Aitken
- Priority Research Centre in Reproductive Science University of Newcastle Callaghan NSW Australia
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21
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Dannenmann B, Lehle S, Lorscheid S, Huber SM, Essmann F, Schulze-Osthoff K. Simultaneous quantification of DNA damage and mitochondrial copy number by long-run DNA-damage quantification (LORD-Q). Oncotarget 2017; 8:112417-112425. [PMID: 29348835 PMCID: PMC5762520 DOI: 10.18632/oncotarget.20112] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 07/26/2017] [Indexed: 11/29/2022] Open
Abstract
DNA damage and changes in the mitochondrial DNA content have been implicated in ageing and cancer development. To prevent genomic instability and tumorigenesis, cells must maintain the integrity of their nuclear and mitochondrial DNA. Advances in the research of DNA damage protection and genomic stability, however, also depend on the availability of techniques that can reliably quantify alterations of mitochondrial DNA copy numbers and DNA lesions in an accurate high-throughput manner. Unfortunately, no such method has been established yet. Here, we describe the high-sensitivity long-run real-time PCR technique for DNA-damage quantification (LORD-Q) and its suitability to simultaneously measure DNA damage rates and mitochondrial DNA copy numbers in cultured cells and tissue samples. Using the LORD-Q multiplex assay, we exemplarily show that the mitochondrial DNA content does not directly affect DNA damage susceptibility, but influences the efficacy of certain anticancer drugs. Hence, LORD-Q provides a fast and precise method to assess DNA lesions, DNA repair and mtDNA replication as well as their role in a variety of pathological settings.
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Affiliation(s)
- Benjamin Dannenmann
- Department of Molecular Medicine, Interfaculty Institute for Biochemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Simon Lehle
- Department of Molecular Medicine, Interfaculty Institute for Biochemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Sebastian Lorscheid
- Department of Molecular Medicine, Interfaculty Institute for Biochemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Stephan M Huber
- Department of Radiation Oncology, University of Tübingen, 72076 Tübingen, Germany
| | - Frank Essmann
- Department of Molecular Medicine, Interfaculty Institute for Biochemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Klaus Schulze-Osthoff
- Department of Molecular Medicine, Interfaculty Institute for Biochemistry, University of Tübingen, 72076 Tübingen, Germany.,German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
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22
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Tibary A. Grand Challenge Animal Reproduction-Theriogenology: From the Bench to Application to Animal Production and Reproductive Medicine. Front Vet Sci 2017; 4:114. [PMID: 28770218 PMCID: PMC5511824 DOI: 10.3389/fvets.2017.00114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 06/30/2017] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ahmed Tibary
- Department of Veterinary Clinical Sciences, Center for Reproductive Biology, Washington State University, Pullman, WA, United States
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23
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Franciosi F, Tessaro I, Dalbies-Tran R, Douet C, Reigner F, Deleuze S, Papillier P, Miclea I, Lodde V, Luciano AM, Goudet G. Analysis of Chromosome Segregation, Histone Acetylation, and Spindle Morphology in Horse Oocytes. J Vis Exp 2017. [PMID: 28518085 DOI: 10.3791/55242] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The field of assisted reproduction has been developed to treat infertility in women, companion animals, and endangered species. In the horse, assisted reproduction also allows for the production of embryos from high performers without interrupting their sports career and contributes to an increase in the number of foals from mares of high genetic value. The present manuscript describes the procedures used for collecting immature and mature oocytes from horse ovaries using ovum pick-up (OPU). These oocytes were then used to investigate the incidence of aneuploidy by adapting a protocol previously developed in mice. Specifically, the chromosomes and the centromeres of metaphase II (MII) oocytes were fluorescently labeled and counted on sequential focal plans after confocal laser microscope scanning. This analysis revealed a higher incidence in the aneuploidy rate when immature oocytes were collected from the follicles and matured in vitro compared to in vivo. Immunostaining for tubulin and the acetylated form of histone four at specific lysine residues also revealed differences in the morphology of the meiotic spindle and in the global pattern of histone acetylation. Finally, the expression of mRNAs coding for histone deacetylases (HDACs) and acetyl-transferases (HATs) was investigated by reverse transcription and quantitative-PCR (q-PCR). No differences in the relative expression of transcripts were observed between in vitro and in vivo matured oocytes. In agreement with a general silencing of the transcriptional activity during oocyte maturation, the analysis of the total transcript amount can only reveal mRNA stability or degradation. Therefore, these findings indicate that other translational and post-translational regulations might be affected. Overall, the present study describes an experimental approach to morphologically and biochemically characterize the horse oocyte, a cell type that is extremely challenging to study due to low sample availability. However, it can expand our knowledge on the reproductive biology and infertility in monovulatory species.
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Affiliation(s)
- Federica Franciosi
- Department of Health, Animal Science and Food Safety, University of Milan;
| | - Irene Tessaro
- Department of Health, Animal Science and Food Safety, University of Milan; IRCCS. Istituto Ortopedico Galeazzi
| | | | | | | | - Stefan Deleuze
- Clinique des Animaux de Compagnie et des Équidés, Université de Liège
| | | | - Ileana Miclea
- University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Valentina Lodde
- Department of Health, Animal Science and Food Safety, University of Milan
| | - Alberto M Luciano
- Department of Health, Animal Science and Food Safety, University of Milan
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24
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Choi YH, Gibbons JR, Canesin HS, Hinrichs K. Effect of medium variations (zinc supplementation during oocyte maturation, perifertilization pH, and embryo culture protein source) on equine embryo development after intracytoplasmic sperm injection. Theriogenology 2016; 86:1782-8. [DOI: 10.1016/j.theriogenology.2016.05.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/24/2016] [Accepted: 05/27/2016] [Indexed: 12/19/2022]
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Chavatte-Palmer P, Robles M, Tarrade A, Duranthon V. Gametes, Embryos, and Their Epigenome: Considerations for Equine Embryo Technologies. J Equine Vet Sci 2016. [DOI: 10.1016/j.jevs.2016.03.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Orsztynowicz M, Pawlak P, Podstawski Z, Nizanski W, Partyka A, Gotowiecka M, Kosiniak-Kamysz K, Lechniak D. Mitochondrial DNA Copy Number in Spermatozoa of Fertile Stallions. Reprod Domest Anim 2016; 51:378-85. [DOI: 10.1111/rda.12689] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 02/29/2016] [Indexed: 11/29/2022]
Affiliation(s)
- M Orsztynowicz
- Department of Genetics and Animal Breeding; Poznan University of Life Sciences; Poznan Poland
| | - P Pawlak
- Department of Genetics and Animal Breeding; Poznan University of Life Sciences; Poznan Poland
| | - Z Podstawski
- Department of Horse Breeding; University of Agriculture in Krakow; Krakow Poland
| | - W Nizanski
- Department of Reproduction and Clinic of Farm Animals; Wroclaw University of Environmental and Life Sciences; Wroclaw Poland
| | - A Partyka
- Department of Reproduction and Clinic of Farm Animals; Wroclaw University of Environmental and Life Sciences; Wroclaw Poland
| | - M Gotowiecka
- Department of Reproduction and Clinic of Farm Animals; Wroclaw University of Environmental and Life Sciences; Wroclaw Poland
| | - K Kosiniak-Kamysz
- Department of Horse Breeding; University of Agriculture in Krakow; Krakow Poland
| | - D Lechniak
- Department of Genetics and Animal Breeding; Poznan University of Life Sciences; Poznan Poland
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Brogan P, Henning H, Stout T, de Ruijter-Villani M. Relationship between colour flow Doppler sonographic assessment of corpus luteum activity and progesterone concentrations in mares after embryo transfer. Anim Reprod Sci 2016; 166:22-7. [DOI: 10.1016/j.anireprosci.2015.12.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/18/2015] [Accepted: 12/22/2015] [Indexed: 10/22/2022]
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Trapphoff T, Heiligentag M, Dankert D, Demond H, Deutsch D, Fröhlich T, Arnold GJ, Grümmer R, Horsthemke B, Eichenlaub-Ritter U. Postovulatory aging affects dynamics of mRNA, expression and localization of maternal effect proteins, spindle integrity and pericentromeric proteins in mouse oocytes. Hum Reprod 2016; 31:133-49. [PMID: 26577303 PMCID: PMC5853592 DOI: 10.1093/humrep/dev279] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/06/2015] [Accepted: 10/13/2015] [Indexed: 12/20/2022] Open
Abstract
STUDY QUESTION Is the postovulatory aging-dependent differential decrease of mRNAs and polyadenylation of mRNAs coded by maternal effect genes associated with altered abundance and distribution of maternal effect and RNA-binding proteins (MSY2)? SUMMARY ANSWER Postovulatory aging results in differential reduction in abundance of maternal effect proteins, loss of RNA-binding proteins from specific cytoplasmic domains and critical alterations of pericentromeric proteins without globally affecting protein abundance. WHAT IS KNOWN ALREADY Oocyte postovulatory aging is associated with differential alteration in polyadenylation and reduction in abundance of mRNAs coded by selected maternal effect genes. RNA-binding and -processing proteins are involved in storage, polyadenylation and degradation of mRNAs thus regulating stage-specific recruitment of maternal mRNAs, while chromosomal proteins that are stage-specifically expressed at pericentromeres, contribute to control of chromosome segregation and regulation of gene expression in the zygote. STUDY DESIGN, SIZE, DURATION Germinal vesicle (GV) and metaphase II (MII) oocytes from sexually mature C57B1/6J female mice were investigated. Denuded in vivo or in vitro matured MII oocytes were postovulatory aged and analyzed by semiquantitative confocal microscopy for abundance and localization of polyadenylated RNAs, proteins of maternal effect genes (transcription activator BRG1 also known as ATP-dependent helicase SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily a, member 4 (SMARCA4) and NOD-like receptor family pyrin domain containing 5 (NLRP5) also known as MATER), RNA-binding proteins (MSY2 also known as germ cell-specific Y-box-binding protein, YBX2), and post-transcriptionally modified histones (trimethylated histone H3K9 and acetylated histone H4K12), as well as pericentromeric ATRX (alpha thalassemia/mental retardation syndrome X-linked, also termed ATP-dependent helicase ATRX or X-linked nuclear protein (XNP)). For proteome analysis five replicates of 30 mouse oocytes were analyzed by selected reaction monitoring (SRM). MATERIAL AND METHODS GV and MII oocytes were obtained from large antral follicles or ampullae of sexually mature mice, respectively. Denuded MII oocytes were aged for 24 h post ovulation. For analysis of distribution and abundance of polyadenylated RNAs fixed oocytes were in situ hybridized to Cy5 labeled oligo(dT)20 nucleotides. Absolute quantification of protein concentration per oocyte of selected proteins was done by SRM proteome analysis. Relative abundance of ATRX was assessed by confocal laser scanning microscopy (CLSM) of whole mount formaldehyde fixed oocytes or after removal of zona and spreading. MSY2 protein distribution and abundance was studied in MII oocytes prior to, during and after exposure to nocodazole, or after aging for 2 h in presence of H2O2 or for 24 h in presence of a glutathione donor, glutathione ethylester (GEE). MAIN RESULTS AND ROLE OF CHANCE The significant reduction in abundance of proteins (P < 0.001) translated from maternal mRNAs was independent of polyadenylation status, while their protein localization was not significantly changed by aging. Most of other proteins quantified by SRM analysis did not significantly change in abundance upon aging except MSY2 and GTSF1. MSY2 was enriched in the subcortical RNP domain (SCRD) and in the spindle chromosome complex (SCC) in a distinct pattern, right and left to the chromosomes. There was a significant loss of MSY2 from the SCRD (P < 0.001) and the spindle after postovulatory aging. Microtubule de- and repolymerization caused reversible loss of MSY2 spindle-association whereas H2O2 stress did not significantly decrease MSY2 abundance. Aging in presence of GEE decreased significantly (P < 0.05) the aging-related overall and cytoplasmic loss of MSY2. Postovulatory aging increased significantly spindle abnormalities, unaligned chromosomes, and abundance of acetylated histone H4K12, and decreased pericentromeric trimethylated histone H3K9 (all P < 0.001). Spreading revealed a highly significant increase in pericentromeric ATRX (P < 0.001) upon ageing. Thus, the significantly reduced abundance of MSY2 protein, especially at the SCRD and the spindle may disturb the spatial control and timely recruitment, deadenylation and degradation of developmentally important RNAs. An autonomous program of degradation appears to exist which transiently and specifically induces the loss and displacement of transcripts and specific maternal proteins independent of fertilization in aging oocytes and thereby can critically affect chromosome segregation and gene expression in the embryo after fertilization. LIMITATION, REASONS FOR CAUTION We used the mouse oocyte to study processes associated with postovulatory aging, which may not entirely reflect processes in aging human oocytes. However, increases in spindle abnormalities, unaligned chromosomes and H4K12 acetylated histones, as well as in mRNA abundance and polyadenylation have been observed also in aged human oocytes suggesting conserved processes in aging. WIDER IMPLICATIONS OF THE FINDINGS Postovulatory aging precociously induces alterations in expression and epigenetic modifications of chromatin by ATRX and in histone pattern in MII oocytes that normally occur after fertilization, possibly contributing to disturbances in the oocyte-to-embryo transition (OET) and the zygotic gene activation (ZGA). These observations in mouse oocytes are also relevant to explain disturbances and reduced developmental potential of aged human oocytes and caution to prevent oocyte aging in vivo and in vitro. STUDY FUNDING/COMPETING INTERESTS The study has been supported by the German Research Foundation (DFG) (EI 199/7-1 | GR 1138/12-1 | HO 949/21-1 and FOR 1041). There is no competing interest.
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Affiliation(s)
- T Trapphoff
- Institute of Gene Technology/Microbiology, University of Bielefeld, Bielefeld, Germany
| | - M Heiligentag
- Institute of Gene Technology/Microbiology, University of Bielefeld, Bielefeld, Germany
| | - D Dankert
- Institute of Anatomy, University Hospital, University Duisburg-Essen, Essen, Germany
| | - H Demond
- Institute of Human Genetics, University Hospital, University Duisburg-Essen, Essen, Germany
| | - D Deutsch
- Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - T Fröhlich
- Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - G J Arnold
- Laboratory for Functional Genome Analysis, Gene Center, Ludwig-Maximilians-Universität München, Munich, Germany
| | - R Grümmer
- Institute of Anatomy, University Hospital, University Duisburg-Essen, Essen, Germany
| | - B Horsthemke
- Institute of Human Genetics, University Hospital, University Duisburg-Essen, Essen, Germany
| | - U Eichenlaub-Ritter
- Institute of Gene Technology/Microbiology, University of Bielefeld, Bielefeld, Germany
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