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Szpila M, Walewska A, Sabat-Pośpiech D, Strączyńska P, Ishikawa T, Milewski R, Szczepańska K, Ajduk A. Postovulatory ageing modifies sperm-induced Ca 2+ oscillations in mouse oocytes through a conditions-dependent, multi-pathway mechanism. Sci Rep 2019; 9:11859. [PMID: 31413272 PMCID: PMC6694115 DOI: 10.1038/s41598-019-48281-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 08/01/2019] [Indexed: 02/04/2023] Open
Abstract
Postovulatory ageing of mammalian oocytes occurs between their ovulation and fertilization and has been shown to decrease their developmental capabilities. Aged oocytes display numerous abnormalities, including altered Ca2+ signalling. Fertilization-induced Ca2+ oscillations are essential for activation of the embryonic development, therefore maintaining proper Ca2+ homeostasis is crucial for the oocyte quality. In the present paper, we show that the mechanism underlying age-dependent alterations in the pattern of sperm-triggered Ca2+ oscillations is more complex and multifaceted than previously believed. Using time-lapse imaging accompanied by immunostaining and molecular analyses, we found that postovulatory ageing affects the amount of Ca2+ stored in the cell, expression of Ca2+ pump SERCA2, amount of available ATP and distribution of endoplasmic reticulum and mitochondria in a manner often strongly depending on ageing conditions (in vitro vs. in vivo). Importantly, those changes do not have to be caused by oxidative stress, usually linked with the ageing process, as they occur even if the amount of reactive oxygen species remains low. Instead, our results suggest that aberrations in Ca2+ signalling may be a synergistic result of ageing-related alterations of the cell cycle, cytoskeleton, and mitochondrial functionality.
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Affiliation(s)
- Marcin Szpila
- Department of Embryology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.,Laboratory of RNA Biology and Functional Genomics, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106, Warsaw, Poland
| | - Agnieszka Walewska
- Department of Embryology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.,Laboratory of Intracellular Ion Channels, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Pasteura 3, 02-093, Warsaw, Poland
| | - Dorota Sabat-Pośpiech
- Department of Embryology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.,Cellular & Molecular Physiology, Institute of Translational Medicine, University of Liverpool, Crown St, Liverpool, L69 3BX, UK
| | - Patrycja Strączyńska
- Department of Embryology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.,School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, pl. Traugutta 2, 41-800, Zabrze, Poland
| | - Takao Ishikawa
- Department of Molecular Biology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Robert Milewski
- Department of Statistics and Medical Informatics, Medical University of Bialystok, Szpitalna 37, 15-295, Bialystok, Poland
| | - Katarzyna Szczepańska
- Department of Embryology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Anna Ajduk
- Department of Embryology, Faculty of Biology, University of Warsaw, Miecznikowa 1, 02-096, Warsaw, Poland.
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Fluks M, Szczepanska K, Ishikawa T, Ajduk A. Transcriptional status of mouse oocytes corresponds with their ability to generate Ca2+ release. Reproduction 2019; 157:465-474. [PMID: 30817322 DOI: 10.1530/rep-18-0625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/26/2019] [Indexed: 01/03/2023]
Abstract
In fully grown ovarian follicles both transcriptionally active (NSN) and inactive (SN) oocytes are present. NSN oocytes have been shown to display lower developmental potential. It is possible that oocytes that have not completed transcription before meiosis resumption accumulate less RNA and proteins required for their further development, including those responsible for regulation of Ca2+ homeostasis. Oscillations of the cytoplasmic concentration of free Ca2+ ions ([Ca2+]i) are triggered in oocytes by a fertilizing spermatozoon and are crucial for inducing and regulating further embryonic development. We showed that NSN-derived oocytes express less inositol 1,4,5-triphosphate receptor type 1 (IP3R1), store less Ca2+ ions and generate weaker spontaneous [Ca2+]i oscillations during maturation than SN oocytes. Consequently, NSN oocytes display aberrant [Ca2+]i oscillations at fertilization. We speculate that this defective regulation of Ca2+ homeostasis might be one of the factors responsible for the lower developmental potential of NSN oocytes.
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Affiliation(s)
- Monika Fluks
- Department of Embryology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | | | - Takao Ishikawa
- Department of Molecular Biology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Anna Ajduk
- Department of Embryology, Faculty of Biology, University of Warsaw, Warsaw, Poland
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Nguyen H, James NG, Nguyen L, Nguyen TP, Vuong C, Ortega MA, Jameson DM, Ward WS. Higher Order Oligomerization of the Licensing ORC4 Protein Is Required for Polar Body Extrusion in Murine Meiosis. J Cell Biochem 2017; 118:2941-2949. [PMID: 28230328 DOI: 10.1002/jcb.25949] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 02/22/2017] [Indexed: 01/01/2023]
Abstract
We have previously shown that the DNA replication licensing factor ORC4 forms a cage around the chromosomes that are extruded in both polar bodies during murine oogenesis, but not around the chromosomes that are retained in the oocyte or around the sperm chromatin. We termed this structure the ORC4 cage. Here, we tested whether the formation of the ORC4 cage is necessary for polar body extrusion (PBE). We first experimentally forced oocytes to extrude sperm chromatin as a pseudo-polar body and found that under these conditions the sperm chromatin did become enclosed in an ORC4 cage. Next, we attempted to prevent the formation of the ORC4 cage by injecting peptides that contained sequences of different domains of the ORC4 protein into metaphase II (MII) oocytes just before the cage normally forms. Our rationale was that the ORC4 peptides would block protein-protein interactions required for cage formation. Two out of six tested peptides prevented the ORC4 cage formation and simultaneously inhibited PBE, resulting in the formation of two pronuclei (2 PN) that were retained in the oocyte. Together, these data demonstrate that ORC4 oligomerization is required to form the ORC4 cage and that it is required for PBE. J. Cell. Biochem. 118: 2941-2949, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Hieu Nguyen
- Department of Anatomy, Biochemistry and Physiology, Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Nicholas G James
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu
| | - Lynn Nguyen
- Department of Anatomy, Biochemistry and Physiology, Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Thien P Nguyen
- Department of Anatomy, Biochemistry and Physiology, Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Cindy Vuong
- Department of Anatomy, Biochemistry and Physiology, Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Michael A Ortega
- University of Hawaii Cancer Center, University of Hawaii at Manoa, Honolulu, Hawaii
| | - David M Jameson
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu
| | - W Steven Ward
- Department of Anatomy, Biochemistry and Physiology, Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii.,Department of Obstetrics, Gynecology and Women's Health, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
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4
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Salvianolic acid A attenuates TNF-α- and d-GalN-induced ER stress-mediated and mitochondrial-dependent apoptosis by modulating Bax/Bcl-2 ratio and calcium release in hepatocyte LO2 cells. Naunyn Schmiedebergs Arch Pharmacol 2015; 388:817-30. [DOI: 10.1007/s00210-015-1116-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 03/13/2015] [Indexed: 02/07/2023]
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Lisi F, Carfagna P, Oliva MM, Rago R, Lisi R, Poverini R, Manna C, Vaquero E, Caserta D, Raparelli V, Marci R, Moscarini M. Pretreatment with myo-inositol in non polycystic ovary syndrome patients undergoing multiple follicular stimulation for IVF: a pilot study. Reprod Biol Endocrinol 2012; 10:52. [PMID: 22823904 PMCID: PMC3416732 DOI: 10.1186/1477-7827-10-52] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Accepted: 07/09/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Aim of this pilot study is to examine the effects of myo-inositol administration on ovarian response and oocytes and embryos quality in non PolyCystic Ovary Syndrome (PCOS) patients undergoing multiple follicular stimulation and in vitro insemination by conventional in vitro fertilization or by intracytoplasmic sperm injection. METHODS One hundred non-PCOS women aged <40 years and with basal FSH <10 mUI/ml were down-regulated with triptorelin acetate from the mid-luteal phase for 2 weeks, before starting the stimulation protocol for oocytes recovery. All patients received rFSH, at a starting dose of 150 IU for 6 days. The dose was subsequently adjusted according to individual response. Group B (n=50) received myo-inositol and folic acid for 3 months before the stimulation period and then during the stimulation itself. Group A (n-50) received only folic acid as additional treatment in the 3 months before and through treatment. RESULTS Total length of the stimulation was similar between the two groups. Nevertheless, total amount of gonadotropins used to reach follicular maturation was found significantly lower in group B. In addition, the number of oocytes retrieved was significantly reduced in the group pretreated with myo-inositol. Clinical pregnancy and implantation rate were not significantly different in the two groups. CONCLUSIONS Our findings suggest that the addition of myo-inositol to folic acid in non PCOS-patients undergoing multiple follicular stimulation for in-vitro fertilization may reduce the numbers of mature oocytes and the dosage of rFSH whilst maintaining clinical pregnancy rate. Further, a trend in favor of increased incidence of implantation in the group pretreated with myo-inositol was apparent in this study. Further investigations are warranted to clarify this pharmacological approach, and the benefit it may hold for patients.
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Affiliation(s)
- Franco Lisi
- Center for Reproductive Medicine Research, Clinica Villa Mafalda, Rome, Italy
| | - Piero Carfagna
- Center for Reproductive Medicine Research, Clinica Villa Mafalda, Rome, Italy
| | | | - Rocco Rago
- Center for Reproductive Medicine Research, Clinica Villa Mafalda, Rome, Italy
| | - Rosella Lisi
- Center for Reproductive Medicine Research, Clinica Villa Mafalda, Rome, Italy
| | - Roberta Poverini
- Center for Reproductive Medicine Research, Clinica Villa Mafalda, Rome, Italy
| | - Claudio Manna
- GENESIS Center for Reproductive Medicine, Rome, Italy
| | - Elena Vaquero
- Department of Surgery, Tor Vergata - University of Rome, Rome, Italy
| | - Donatella Caserta
- Department of Women Health and Territorial Medicine, Sapienza - University of Rome, Sant’Andrea Hospital, Rome, Italy
| | - Valeria Raparelli
- Department of Internal Medicine and Medical Specialties, Sapienza - University of Rome, Rome, Italy
| | - Roberto Marci
- Department of Biomedical Sciences and Advanced Therapies, Section of Obstetrics and Gynecology, University Hospital of Ferrara, Ferrara, Italy
| | - Massimo Moscarini
- Department of Women Health and Territorial Medicine, Sapienza - University of Rome, Sant’Andrea Hospital, Rome, Italy
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Yamauchi Y, Riel JM, Ward MA. Paternal DNA damage resulting from various sperm treatments persists after fertilization and is similar before and after DNA replication. ACTA ACUST UNITED AC 2011; 33:229-38. [PMID: 21546611 DOI: 10.2164/jandrol.111.013532] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In spite of its highly condensed state, sperm DNA is vulnerable to damage that can originate from oxidative stress, the activity of sperm-specific nucleases, or both. After fertilization, in the oocyte, paternal chromatin undergoes dramatic changes, and during this extensive remodeling, it can be both repaired and degraded, and these processes can be linked to DNA synthesis. Here, we analyzed sperm response to damage-inducing treatments both before and after fertilization and before or after zygotic DNA replication. Epididymal mouse spermatozoa were either frozen without cryoprotection (FT) or treated with detergent Triton X-100 coupled with dithiothreitol (TX+DTT) to induce DNA damage. Fresh, untreated sperm served as control. Immediately after preparation, spermatozoa from 3 groups were taken for comet assay, or for intracytoplasmic sperm injection into prometaphase I oocytes to visualize prematurely condensed single-chromatid chromosomes, or into mature metaphase II oocytes to visualize chromosomes after DNA replication. Comet assay revealed increased DNA fragmentation in treated sperm when compared with control, with FT sperm more severely affected. Chromosome analysis demonstrated paternal DNA damage in oocytes injected with treated, but not with fresh, sperm, with FT and TX+DTT groups now yielding similar damage. There were no differences in the incidence of abnormal paternal karyoplates before and after DNA synthesis in all examined groups. This study provides evidence that subjecting sperm to DNA damage-inducing treatments results in degradation of highly condensed sperm chromatin when it is still packed within the sperm head, and that this DNA damage persists after fertilization. The difference in DNA damage in sperm subjected to 2 treatments was ameliorated in the fertilized oocytes, suggesting that some chromatin repair might have occurred. This process, however, was independent of DNA synthesis and took place during oocyte maturation.
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Affiliation(s)
- Yasuhiro Yamauchi
- Institute for Biogenesis Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96822, USA
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Gallinelli A, Nicoli A, Capodanno F, Valli B, Facchinetti F, La Sala GB. Nitric oxide as an early marker of human embryo metabolic cleavage in ART using fresh or thawed oocytes. Eur J Obstet Gynecol Reprod Biol 2008; 142:48-52. [PMID: 18951688 DOI: 10.1016/j.ejogrb.2008.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2007] [Revised: 07/01/2008] [Accepted: 09/04/2008] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To study a possible role of nitric oxide (NO) as a marker of development in the early phases of human embryo cleavage during assisted reproduction. STUDY DESIGN 179 women having ART were included. 123 women used fresh oocytes and 56 oocyte thawing cycles in the Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Arcispedale S. Maria Nuova, between July 2005 and June 2006; 57 patients had IVF and 122 patients had ICSI. NO concentrations in IVF or ICSI embryo culture media were assessed by monitoring levels of NO stable oxidation products (nitrites/nitrates). Analysis of embryo quality was performed. Student's t-test or Mann-Whitney and logistic regression model tests were applied to the data. RESULTS In patients using fresh oocytes, there were greater NO production in embryos derived from ICSI than from IVF after 52 h of culture (38.64 micromol/L vs 11.2 micromol/L, p<0.05). No correlation with embryo quality was observed. Embryos derived from fresh oocytes produce more NO than embryos from thawed oocytes both after 48 and 52 h of culture (16.12 micromol/L vs 6.83 micromol/L and 25.93 micromol/L vs 2.98 micromol/L respectively, p<0.05). CONCLUSION(S) NO in embryo culture media is not a metabolic cleavage marker or a marker of embryo quality in ART. However, it could be an important parameter in the investigation of metabolism in frozen/thawed oocytes.
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Affiliation(s)
- Andrea Gallinelli
- Department of Obstetrics and Gynecology, Arcispedale S. Maria Nuova (ASMN), 42100 Reggio Emilia, Italy
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Li F, Zhou X, Zhu J, Xia W, Ma J, Wong STC. Workflow and methods of high-content time-lapse analysis for quantifying intracellular calcium signals. Neuroinformatics 2008; 6:97-108. [PMID: 18506641 DOI: 10.1007/s12021-008-9016-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2007] [Accepted: 03/05/2008] [Indexed: 01/21/2023]
Abstract
Calcium ions (Ca2+) play a fundamental role in a variety of physiological functions in many cell types by acting as a secondary messenger. Variation of intracellular Ca2+ concentration ([Ca2+]i) is often observed when the cell is stimulated. However, it is a challenging task to automatically quantify intracellular [Ca2+]i in a population of cells. In this study, we present a workflow including specific algorithms for the automated intracellular calcium signal analysis using high-content, time-lapse cellular images. The experimental validations indicate the effectiveness of the proposed workflow and algorithms. We applied the workflow to analyze the intracellular calcium signals induced by different concentrations of H2O2 in the cell lines transfected by presenilin-1 (PS-1) that is known to be closely related to the familial Alzheimer's disease (FAD). The analysis results imply an important role of mutant PS-1, but not normal human PS-1 and mutant human amyloid precursor protein (APP), in enhancing intracellular calcium signaling induced by H2O2.
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Affiliation(s)
- Fuhai Li
- Department of Information Science, School of Mathematical Sciences, and LMAM, Peking University, Beijing, 100871, China
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Ajduk A, Małagocki A, Maleszewski M. Cytoplasmic maturation of mammalian oocytes: development of a mechanism responsible for sperm-induced Ca2+ oscillations. Reprod Biol 2008; 8:3-22. [DOI: 10.1016/s1642-431x(12)60001-1] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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