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Pandey AN, Yadav PK, Premkumar KV, Tiwari M, Pandey AK, Chaube SK. Reactive oxygen species signalling in the deterioration of quality of mammalian oocytes cultured in vitro: Protective effect of antioxidants. Cell Signal 2024; 117:111103. [PMID: 38367792 DOI: 10.1016/j.cellsig.2024.111103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
The in vitro fertilization (IVF) is the first choice of infertile couples worldwide to plan for conception. Besides having a significant advancement in IVF procedure, the success rate is still poor. Although several approaches have been tested to improve IVF protocol, minor changes in culture conditions, physical factors and/or drug treatment generate reactive oxygen species (ROS) in oocytes. Due to large size and huge number of mitochondria, oocyte is more susceptible towards ROS-mediated signalling under in vitro culture conditions. Elevation of ROS levels destabilize maturation promoting factor (MPF) that results in meiotic exit from diplotene as well as metaphase-II (M-II) arrest in vitro. Once meiotic exit occurs, these oocytes get further arrested at metaphase-I (M-I) stage or metaphase-III (M-III)-like stage under in vitro culture conditions. The M-I as well as M-III arrested oocytes are not fit for fertilization and limits IVF outcome. Further, the generation of excess levels of ROS cause oxidative stress (OS) that initiate downstream signalling to initiate various death pathways such as apoptosis, autophagy, necroptosis and deteriorates oocyte quality under in vitro culture conditions. The increase of cellular enzymatic antioxidants and/or supplementation of exogenous antioxidants in culture medium protect ROS-induced deterioration of oocyte quality in vitro. Although a growing body of evidence suggests the ROS and OS-mediated deterioration of oocyte quality in vitro, their downstream signalling and related mechanisms remain poorly understood. Hence, this review article summarizes the existing evidences concerning ROS and OS-mediated downstream signalling during deterioration of oocyte quality in vitro. The use of various antioxidants against ROS and OS-mediated impairment of oocyte quality in vitro has also been explored in order to increase the success rate of IVF during assisted reproductive health management.
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Affiliation(s)
- Ashutosh N Pandey
- Cell Physiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Pramod K Yadav
- Cell Physiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Karuppanan V Premkumar
- Cell Physiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Meenakshi Tiwari
- Cell Physiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Ajai K Pandey
- Department of Kayachikitsa, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Shail K Chaube
- Cell Physiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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Jiang Y, Song G, Yuan JC, Zhang XH, Wu XH. Genetic analysis of recurrent parthenogenesis: A case report and literature review. Exp Ther Med 2022; 24:530. [PMID: 35837054 PMCID: PMC9257975 DOI: 10.3892/etm.2022.11457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/31/2022] [Indexed: 11/17/2022] Open
Abstract
The present study reported a case of bilateral salpingectomy for an ectopic pregnancy with recurrent parthenogenesis over two in vitro fertilization (IVF) cycles. The first IVF cycle resulted in short-time fertilization. Two cleaved embryos were present after removing the cumulus cells. In the second cycle, intracytoplasmic sperm injection (ICSI) was performed directly and two 6-cell embryos were discovered again prior to the injection. Embryo biopsy, genome amplification, copy number variation (CNV) and single nucleotide polymorphism (SNP) analysis were performed on the two 6-cell embryos of the second cycle. The results of the CNV analysis indicated a genotype of 39,XX,+1,+1,+1,+1,+6q,+6q,+6q,-7p(x1),-10(x1),-13(x0),-15(x0),-17(x1),-18(x1),-19(x1),-20(x1) and the SNP analysis reported that only those chromosomes with one copy had a signal pattern similar to that obtained for an uniparental disomy. Although repeated spontaneous parthenogenesis was observed, the other metaphase II oocytes were fertilized normally after ICSI and the patient became pregnant. A literature review indicated that parthenogenesis may occur in individuals from various populations, and the patients always have a history of either recurrent miscarriages or bilateral tubal obstruction with or without ovarian/fallopian tube surgery. In certain cases, 1 pronucleus (PN) appears and cleaves later and in others, four-to six-cell embryos appear directly.
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Affiliation(s)
- Yan Jiang
- The Center for Reproductive Medicine and Infertility, The Fourth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Ge Song
- The Center for Reproductive Medicine and Infertility, The Fourth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Jing-Chuan Yuan
- The Center for Reproductive Medicine and Infertility, The Fourth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Xu-Hui Zhang
- The Center for Reproductive Medicine and Infertility, The Fourth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Xiao-Hua Wu
- The Center for Reproductive Medicine and Infertility, The Fourth Hospital of Shijiazhuang, Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
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Cui W. Oocyte Spontaneous Activation: An Overlooked Cellular Event That Impairs Female Fertility in Mammals. Front Cell Dev Biol 2021; 9:648057. [PMID: 33763428 PMCID: PMC7982476 DOI: 10.3389/fcell.2021.648057] [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: 12/31/2020] [Accepted: 02/08/2021] [Indexed: 01/14/2023] Open
Abstract
In mammals, including humans, mature oocytes are ovulated into the oviduct for fertilization. Normally, these oocytes are arrested at metaphase of the second meiosis (MII), and this arrest can be maintained for a certain period, which is essential for fertilization in vivo and oocyte manipulations in vitro, such as assisted reproduction in clinics and nuclear/spindle transfer in laboratories. However, in some species and under certain circumstances, exit from MII occurs spontaneously without any obvious stimulation or morphological signs, which is so-called oocyte spontaneous activation (OSA). This mini-review summarizes two types of OSA. In the first type (e.g., most rat strains), oocytes can maintain MII arrest in vivo, but once removed out, oocytes undergo OSA with sister chromatids separated and eventually scattered in the cytoplasm. Because the stimulation is minimal (oocyte collection itself), this OSA is incomplete and cannot force oocytes into interphase. Notably, once re-activated by sperm or chemicals, those scattered chromatids will form multiple pronuclei (MPN), which may recapitulate certain MPN and aneuploidy cases observed in fertility clinics. The second type of OSA occurs in ovarian oocytes (e.g., certain mouse strains and dromedary camel). Without ovulation or fertilization, these OSA-oocytes can initiate intrafollicular development, but these parthenotes cannot develop to term due to aberrant genomic imprinting. Instead, they either degrade or give rise to ovarian teratomas, which have also been reported in female patients. Last but not the least, genetic models displaying OSA phenotypes and the lessons we can learn from animal OSA for human reproduction are also discussed.
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Affiliation(s)
- Wei Cui
- Department of Veterinary and Animal Sciences, Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts Amherst, Amherst, MA, United States
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Wang X, Xiao Y, Sun Z, Zhen J, Yu Q. Effect of the time interval between oocyte retrieval and ICSI on embryo development and reproductive outcomes: a systematic review. Reprod Biol Endocrinol 2021; 19:34. [PMID: 33648503 PMCID: PMC7919304 DOI: 10.1186/s12958-021-00717-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 02/12/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Intra-cytoplasmic sperm injection (ICSI) is used in assisted reproductive technology (ART) laboratories. However, there is no consensus regarding the precise time intervals within ICSI cycles [oocyte pick up (OPU), oocyte denudation (DN), and ICSI], and results are inconsistent and contradictory. Thus, we aim to evaluate whether there is a concordance regarding the time intervals used in different laboratories and a concrete time that gives better laboratory and reproductive results. METHODS A systematic review of the literature until July 25, 2020, was performed with the keywords "Oocyte Denudation/Denudation/Oocyte," "Intra-cytoplasmic Sperm Injection/ICSI," "Oocyte/Oocyte maturation/ cumulus," and "Cumulus removal/ removal." Articles and abstracts in English and involving human subjects referring to the effects of oocyte DN time on embryo development and clinical outcomes were included. RESULTS Of the 294 evaluated articles, 24 (including 20 full articles and 4 abstracts) were included in this review. Eighteen studies analysed the effect of OPU-DN time on embryo development and clinical outcomes. Most of these studies concluded that OPU-DN time did not influence ICSI outcomes, but some suggested that oocytes should be incubated for a short time before DN to improve oocyte maturity and enhance ICSI outcomes. In addition to reports on positive or negligible effects, adverse effects were reported in 12 studies on DN-ICSI timing. Neither OPU-DN nor DN-ICSI time could improve live birth rate. CONCLUSIONS Oocytes should be pre-incubated for a short duration (preferably < 4 h) before DN according to the ART laboratory schedule. More randomised controlled trials are warranted to clarify the effect of DN-ICSI timing on ICSI outcomes.
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Affiliation(s)
- Xue Wang
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - YaLing Xiao
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - ZhengYi Sun
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - JingRan Zhen
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Qi Yu
- Department of Gynecology Endocrine and Reproductive Center, Peking Union Medical College Hospital, Peking Union Medical College/Chinese Academy of Medical Sciences, Beijing, 100730, China
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Meiotic Instability Generates a Pathological Condition in Mammalian Ovum. Stem Cell Rev Rep 2020; 17:777-784. [PMID: 33140233 DOI: 10.1007/s12015-020-10072-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2020] [Indexed: 02/02/2023]
Abstract
Maintenance of metaphase-II (M-II) arrest in ovum is required to present itself as a right gamete for successful fertilization in mammals. Surprisingly, instability of meiotic cell cycle results in spontaneous exit from M-II arrest, chromosomal scattering and incomplete extrusion of second polar body (PB-II) without forming pronuclei so called abortive spontaneous ovum activation (SOA). It remains unclear what causes meiotic instability in freshly ovulated ovum that results in abortive SOA. We propose the involvement of various signal molecules such as reactive oxygen species (ROS), cyclic 3',5' adenosine monophosphate (cAMP) and calcium (Ca2+) in the induction of meiotic instability and thereby abortive SOA. These signal molecules through their downstream pathways modulate phosphorylation status and activity of cyclin dependent kinase (cdk1) as well as cyclin B1 level. Changes in phosphorylation status of cdk1 and its activity, dissociation and degradation of cyclin B1 destabilize maturation promoting factor (MPF). The premature MPF destabilization and defects in other cell cycle regulators possibly cause meiotic instability in ovum soon after ovulation. The meiotic instability results in a pathological condition of abortive SOA and deteriorates ovum quality. These ova are unfit for fertilization and limit reproductive outcome in several mammalian species including human. Therefore, global attention is required to identify the underlying causes in greater details in order to address the problem of meiotic instability in ova of several mammalian species icluding human. Moreover, these activated ova may be used to create parthenogenetic embryonic stem cell lines in vitro for the use in regenerative medicine.Graphical abstract.
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Abdoon ASS, Kandil OM, Zeng SM. Intrafollicular spontaneous parthenogenetic development of dromedary camel oocytes. Mol Reprod Dev 2020; 87:704-710. [PMID: 32415813 DOI: 10.1002/mrd.23350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 05/04/2020] [Indexed: 11/08/2022]
Abstract
Dromedary camel oocytes are unique in their capability for intrafollicular and in vitro spontaneous parthenogenetic activation (SPA) and development. This study was designed for (a) observing the incidence of SPA and development of dromedary camel oocytes retrieved from ovaries; (b) assessing intrafollicular development of dromedary camel oocytes using histological examination; (c) evaluating the abilities of dromedary camel oocytes to mature, SPA, and develop in vitro; and (d) identifying the transcript abundance of Cdx2 messenger RNA (mRNA) expression in different stages of SPA and developed camel embryos. The results revealed that 2.33% of oocytes retrieved from dromedary camel ovaries were SPA and developed to blastocyst stage. Serial sections of dromedary camel ovaries also demonstrated the presence of 1.4 SPA and parthenotes per ovary, which included from two-cell to the blastocysts with demarcated trophectoderm and inner cell mass layers. A total of 2.6% in vitro matured dromedary camel oocytes developed into morulae. The SPA and developed dromedary embryos expressed transcript abundance for Cdx2 mRNA with the highest (p < .05) at the blastocyst. The present work determines for the first time the intrafollicular oocytes from the dromedary camel display SPA, and the parthenotes can develop into blastocysts and expressing Cdx2 mRNA.
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Affiliation(s)
- Ahmed S S Abdoon
- Department of Animal Reproduction and Artificial Insemination, Veterinary Research Division, National Research Centre, Cairo, Egypt
| | - Omaima M Kandil
- Department of Animal Reproduction and Artificial Insemination, Veterinary Research Division, National Research Centre, Cairo, Egypt
| | - Shen-Ming Zeng
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Ye Y, Li N, Yan X, Wu R, Zhou W, Cheng L, Li Y. Genetic analysis of embryo in a human case of spontaneous oocyte activation: a case report. Gynecol Endocrinol 2020; 36:294-296. [PMID: 31709844 DOI: 10.1080/09513590.2019.1687671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Parthenogenesis, a unique form of reproduction, is normally inhibited in mammals and a human embryo with parthenogenetic origin is not considered capable of producing offspring. The aim of this report is to analyze a parthenogenetic oocyte retrieved from a patient so as to have a better understanding on parthenogenesis and causes of infertility. A 38-year-old woman presented at our center with a history of primary infertility for 10 years and underwent an IVF-ICSI cycle. Three MII oocytes retrieved and one of which presented with 1 pronucleus before conducting ICSI and developed into an embryo 30 h post-retrieval. Blastomere biopsy, genome amplification, copy number variation (CNV) analysis and MultiSNPs analysis was performed on the embryo. The results showed that only one blastomere contains DNA and CNV analysis indicated a genotype of 48, XX, +17, +17 and the genetic contribution of biopsied embryo was of exclusively maternal origin. Such analysis might be beneficial for patients with a history of oocyte spontaneous activation in diagnosing case-specific aberrations and providing individualized therapeutic strategies such as preimplantation genetic diagnosis to choose a genetic normal embryo to transplant.
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Affiliation(s)
- Yuanyuan Ye
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Na Li
- Intensive Care Unit, Fujian Medical University Xiamen Humanity Hospital, Xiamen, China
| | - Xiaohong Yan
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Rongfeng Wu
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Weidong Zhou
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Ling Cheng
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Youzhu Li
- Reproductive Medicine Center, The First Affiliated Hospital of Xiamen University, Xiamen, China
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Abortive Spontaneous Egg Activation: An Emerging Biological Threat for the Existence of Mammals. Cell Reprogram 2017; 19:145-149. [DOI: 10.1089/cell.2016.0052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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