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Camp OG, Bembenek JN, Goud PT, Awonuga AO, Abu-Soud HM. The Implications of Insufficient Zinc on the Generation of Oxidative Stress Leading to Decreased Oocyte Quality. Reprod Sci 2023; 30:2069-2078. [PMID: 36920672 PMCID: PMC11047769 DOI: 10.1007/s43032-023-01212-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/07/2023] [Indexed: 03/16/2023]
Abstract
Zinc is a transition metal that displays wide physiological implications ranging from participation in hundreds of enzymes and proteins to normal growth and development. In the reproductive tract of both sexes, zinc maintains a functional role in spermatogenesis, ovulation, fertilization, normal pregnancy, fetal development, and parturition. In this work, we review evidence to date regarding the importance of zinc in oocyte maturation and development, with emphasis on the role of key zinc-binding proteins, as well as examine the effects of zinc and reactive oxygen species (ROS) on oocyte quality and female fertility. We summarize our current knowledge about the participation of zinc in the developing oocyte bound to zinc finger proteins as well as loosely bound zinc ion in the intracellular and extracellular environments. These include aspects related to (1) the impact of zinc deficiency and overwhelming production of ROS under inflammatory conditions on the offset of the physiological antioxidant machinery disturbing biomolecules, proteins, and cellular processes, and their role in contributing to further oxidative stress; (2) the role of ROS in modulating damage to proteins containing zinc, such as zinc finger proteins and nitric oxide synthases (NOS), and expelling the zinc resulting in loss of protein function; and (3) clarify the different role of oxidative stress and zinc deficiency in the pathophysiology of infertility diseases with special emphasis on endometriosis-associated infertility.
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Affiliation(s)
- Olivia G Camp
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Joshua N Bembenek
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Pravin T Goud
- Division of Reproductive Endocrinology and Infertility & California IVF Fertility Center, Department of Obstetrics and Gynecology, University of California Davis, Sacramento, CA, 95833, USA
- Laurel Fertility Care, San Francisco, CA, 94109, USA
- California Northstate University Medical College, Elk Grove, CA, 95757, USA
| | - Awoniyi O Awonuga
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA
| | - Husam M Abu-Soud
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock, Detroit, MI, 48201, USA.
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
- Department of Microbiology, Immunology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
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Metcalf ES, Masterson KR, Battaglia D, Thompson JG, Foss R, Beck R, Cook NL, O Leary T. Conditions to optimise the developmental competence of immature equine oocytes. Reprod Fertil Dev 2021; 32:1012-1021. [PMID: 32693913 DOI: 10.1071/rd19249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 06/11/2020] [Indexed: 12/24/2022] Open
Abstract
Optimising the developmental potential of immature equine oocytes and invitro-produced (IVP) embryos was explored through modifications of established media and holding temperature. In Experiment 1, delaying spontaneous resumption of meiosis through the process of simulated physiological oocyte maturation with the addition of the adenylate cyclase activator forskolin (50µM) and the phosphodiesterase inhibitor 3-isobutyl-1-methylxanthine (100µM) to overnight holding medium before maturation improved blastocyst production (P<0.05). In Experiment 2, the blastocyst production rate was increased significantly when cumulin (100ng mL-1) was added to the overnight holding or culture media (P<0.05). In Experiment 3, immature oocytes held overnight at 16°C before maturation had improved developmental competence than those held at 20°C and 5°C (P<0.05). There was no difference between maturation rates, but blastocyst formation per cleaved oocyte was significantly greater in oocytes held overnight at 16°C than at 20°C or 5°C. Furthermore, blastocyst formation per recovered oocyte and per fertilised oocyte was greater when oocytes were held before maturation at 16°C than at 5°C (P<0.05). In Experiment 4, the addition of sodium ascorbate (AC; 50µg mL-1) to the maturation and/or culture media of oocytes and IVP embryos did not improve blastocyst production, but did appear to lower cleavage rates compared with oocytes and embryos cultured without AC.
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Affiliation(s)
- Elizabeth S Metcalf
- Honahlee PC, 14005 SW Tooze Road, Sherwood, OR 97140, USA; and Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA; and Corresponding author.
| | - Keith R Masterson
- Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA
| | - David Battaglia
- Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA
| | - Jeremy G Thompson
- School of Medicine, The University of Adelaide, Medical School, South Adelaide, SA 5005, Australia
| | - Robert Foss
- Equine Medical Services, 5851E Deer Park Road, Columbia, MO 65201, USA
| | - Richard Beck
- In Foal, Inc., 39185 Diamond Valley Road, Hemet, CA 92543, USA
| | - Nancy L Cook
- Advanced Equine Reproduction, 1145 Arroyo Mesa, Solvang, CA 93463, USA
| | - Thomas O Leary
- Andrology Division, Department of Obstetrics and Gynecology, Oregon Health and Science University School of Medicine, 3303S. Bond Avenue, Portland, OR 97239, USA
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Moros-Nicolás C, Izquierdo-Rico MJ, Li Y, González-Brusi L, Romar R, Funahashi H. Relative transcript abundance in porcine cumulus cells collected from different sized follicles. Reprod Domest Anim 2020; 56:374-380. [PMID: 33320378 DOI: 10.1111/rda.13881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 12/11/2020] [Indexed: 11/30/2022]
Abstract
Crosstalk between the oocyte and surrounding cumulus cells (CCs) is essential for the production of competent oocytes. Previous studies have analysed the relative transcript abundance in oocytes derived from small (SF: <3 mm diameter)- and medium-sized (MF: 3-6 mm diameter) follicles to determine the potential use of SF-derived oocytes in assisted reproductive technologies (ART). The aim of this study was to examine the relative transcript abundance of CCs obtained from cumulus-oocyte complexes (COCs) derived from SF and MF. Nine genes were selected according to their importance for developmental competence: AT-rich interaction domain 1B (ARID1B), bone morphogenic protein receptor 2 (BMPR2), CD44, follicle-stimulating hormone receptor (FSHR), follistatin (FST), inhibin beta-A (INHBA), luteinizing hormone receptor (LHR), nuclear receptor subfamily 2 group F member 6 (NR2F6) and vascular endothelial growth factor A (VEGFA). The expression of these genes was analysed by RT-qPCR. The results pointed to significant differences in five genes, and the relative transcript abundance of SF-derived CCs was lower in the case of INHBA, but higher in FSHR, FST, LHR and NR2F6 compared with MF-derived CCs. We provide information of gene activity in the porcine CCs from different sized follicles, thus improving our understanding of oocyte biology and providing new markers that identify viable and competent oocytes.
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Affiliation(s)
- Carla Moros-Nicolás
- Department of Cell Biology and Histology, School of Medicine, University of Murcia, Murcia, Spain.,Department of Animal Science, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
| | - Mª José Izquierdo-Rico
- Department of Cell Biology and Histology, School of Medicine, University of Murcia, Murcia, Spain.,Department of Animal Science, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
| | - Yang Li
- Department of Animal Science, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
| | - Leopoldo González-Brusi
- Department of Cell Biology and Histology, School of Medicine, University of Murcia, Murcia, Spain
| | - Raquel Romar
- Department of Physiology, Faculty of Veterinary, University of Murcia, Murcia, Spain
| | - Hiroaki Funahashi
- Department of Animal Science, Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
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