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Bui TMT, Nguyễn KX, Karata A, Ferré P, Trần MT, Wakai T, Funahashi H. Presence of vascular endothelial growth factor during the first half of IVM improves the meiotic and developmental competence of porcine oocytes from small follicles. Reprod Fertil Dev 2018; 29:1902-1909. [PMID: 27938625 DOI: 10.1071/rd16321] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 10/20/2016] [Indexed: 12/27/2022] Open
Abstract
The aim of the present study was to investigate the effect of vascular endothelial growth factor (VEGF) on the meiotic and developmental competence of porcine oocytes from small follicles (SF; 0.5-3mm diameter). When cumulus-oocyte complexes (COCs) from medium-sized follicles (MF; 3-6mm diameter) and SF were cultured for IVM, the maturation rates were significantly higher for oocytes from MF than SF. Concentrations of VEGF in the medium were significantly higher for COCs cultured from MF than SF. When COCs from SF were exposed to 200ngmL-1 VEGF during the first 20h of IVM, the maturation rate improved significantly and was similar to that of oocytes derived from MF. The fertilisability of oocytes was also significantly higher than that of VEGF-free SF controls. Following parthenogenetic activation, the blastocyst formation rate improved significantly when SF COC culture was supplemented with 200ngmL-1 VEGF, with the rate similar to that of oocytes from MF. The results of the present study indicate that VEGF markedly improves the meiotic and developmental competence of oocytes derived from SF, especially at a concentration of 200ngmL-1 during the first 20h of IVM.
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Affiliation(s)
- Tra M T Bui
- Department of Animal Science, Graduate School of Environmental and Life Sciences, Okayama University, Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan
| | - Khánh X Nguyễn
- Department of Animal Science, Graduate School of Environmental and Life Sciences, Okayama University, Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan
| | - Asako Karata
- Department of Animal Science, Graduate School of Environmental and Life Sciences, Okayama University, Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan
| | - Pilar Ferré
- Department of Animal Science, Graduate School of Environmental and Life Sciences, Okayama University, Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan
| | - Minh T Trần
- Department of Animal Science, Graduate School of Environmental and Life Sciences, Okayama University, Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan
| | - Takuya Wakai
- Department of Animal Science, Graduate School of Environmental and Life Sciences, Okayama University, Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan
| | - Hiroaki Funahashi
- Department of Animal Science, Graduate School of Environmental and Life Sciences, Okayama University, Tsushima-Naka, Kita-Ku, Okayama 700-8530, Japan
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Jeon Y, Yoon JD, Cai L, Hwang SU, Kim E, Zheng Z, Jeung E, Lee E, Hyun SH. Zinc deficiency during in vitro maturation of porcine oocytes causes meiotic block and developmental failure. Mol Med Rep 2015; 12:5973-82. [PMID: 26238161 DOI: 10.3892/mmr.2015.4125] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 06/23/2015] [Indexed: 11/06/2022] Open
Abstract
The present study investigated the effects of zinc deficiency during in vitro maturation (IVM) of porcine oocytes. Zinc deficiency was induced by administering the membrane‑permeable zinc chelator N,N,N',N'‑tetrakis‑(2‑pyridylmethyl)‑ethylendiamine (TPEN). First, the effects of zinc deficiency during IVM on a TPEN‑treated group and a TPEN+zinc-treated group compared with a control group were assessed. The oocyte maturation rates and subsequent embryonic developmental competence of the TPEN+zinc‑treated oocytes were similar to those of the control oocytes (metaphase II [MII] rate, 93.0 and 92.7%, respectively, and blastocyst [BL] formation rate, 42.0 and 40.0%, respectively). These results were significantly different from those obtained for the TPEN‑treated oocytes (MII rate, 0.61%; BL formation rate, 0%). Although the TPEN‑treated oocytes were arrested at metaphase I (MI), the distribution of microtubules was normal. However, microfilament formation was abnormal in the TPEN‑treated oocytes. Furthermore, the effect of a temporary zinc deficiency during IVM on oocyte maturation and subsequent embryonic development was assessed. TPEN (10 µM) was added to the IVM medium for 0, 7, 15 or 22 h. The 0 h‑treated oocytes showed an 83.9% MII rate, while the 7 h‑treated oocytes had a significantly lower MII rate (44.8%). Most of the 15- and 22 h‑treated oocytes were arrested at MI (MI rate: 98.0 and 97.2%, respectively; MII rate, 0% in both groups). Reductions in the BL formation were dependent on the TPEN treatment duration (29.3, 9.2, 0, and 0% after 0, 7, 15 and 22 h, respectively). In conclusion, zinc is an essential element for successful oocyte maturation and embryonic development in pigs. Zinc deficiency caused a meiotic block and had lasting effects on early embryonic development.
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Affiliation(s)
- Yubyeol Jeon
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
| | - Junchul David Yoon
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
| | - Lian Cai
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
| | - Seon-Ung Hwang
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
| | - Eunhye Kim
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
| | - Zhong Zheng
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
| | - Euibae Jeung
- Laboratory of Veterinary Biochemistry and Molecular Biology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
| | - Eunsong Lee
- Laboratory of Theriogenology, College of Veterinary Medicine, Kangwon National University, Chuncheon, Gangwon 200-710, Republic of Korea
| | - Sang-Hwan Hyun
- Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk 361‑763, Republic of Korea
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Anchordoquy JM, Anchordoquy JP, Testa JA, Sirini MÁ, Furnus CC. Influence of vascular endothelial growth factor and Cysteamine on in vitro bovine oocyte maturation and subsequent embryo development. Cell Biol Int 2015; 39:1090-8. [PMID: 25879691 DOI: 10.1002/cbin.10481] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 04/07/2015] [Accepted: 04/08/2015] [Indexed: 01/01/2023]
Abstract
The objective of this study was to investigate the effect of VEGF and Cysteamine during in vitro maturation (IVM) of bovine oocytes on GSH content and developmental competence. For this purpose, experiments were designed to evaluate the effect of 0, 100, 300, and 500 ng/mL VEGF in IVM medium on: GSH content in oocytes and cumulus cells (Exp. 1) and subsequent embryo development (Exp. 2). Also, influence of adding 500 ng/mL VEGF and 100 μM Cysteamine to IVM medium on GSH content in oocytes and cumulus cells (Exp. 3) and oocyte developmental capacity (Exp. 4) were evaluated. Oocytes were matured in: a) Control; b) VEGF 0-3 h; c) Cysteamine 4-24 h; d) VEGF 0-3 h + Cysteamine 4-24 h; and e) VEGF + Cysteamine 24 h. The results showed that: i) VEGF did not alter GSH content in oocytes and cumulus cells; (ii) supplementation of 300 and 500 ng/mL VEGF increased blastocyst yield; (iii) the presence of VEGF + Cysteamine simultaneously during 24 h improved GSH content but not embryo development; and (iv) the presence of VEGF during the first 3 h + Cysteamine from 4 to 24 h increased GSH concentrations and subsequent embryo development. In conclusion, the addition of VEGF and Cysteamine in two sequential steps to maturation medium result in an improvement of cytoplasmic maturation, with a positive impact on oocyte developmental capacity by increasing the efficiency of in vitro blastocyst production. However, the effect was detrimental when both VEGF and Cysteamine were present during 24 of IVM.
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Affiliation(s)
- Juan Mateo Anchordoquy
- Instituto de Genética Veterinaria Prof. Fernando N. Dulout (IGEVET), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata - CONICET, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina
| | - Juan Patricio Anchordoquy
- Instituto de Genética Veterinaria Prof. Fernando N. Dulout (IGEVET), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata - CONICET, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina.,Cátedra de Fisiología, Laboratorio de Nutrición Mineral, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina
| | - Juan Alberto Testa
- Instituto de Genética Veterinaria Prof. Fernando N. Dulout (IGEVET), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata - CONICET, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina.,Cátedra de Fisiología, Laboratorio de Nutrición Mineral, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina
| | - Matías Ángel Sirini
- Instituto de Genética Veterinaria Prof. Fernando N. Dulout (IGEVET), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata - CONICET, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina
| | - Cecilia C Furnus
- Instituto de Genética Veterinaria Prof. Fernando N. Dulout (IGEVET), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata - CONICET, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina.,Cátedra de Citología, Histología y Embriología "A", Facultad de Ciencias Médicas, Universidad Nacional de La Plata, calle 60 y 118 s/n, CP (1900), La Plata, Buenos Aires, Argentina
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Yan L, Luo H, Gao X, Liu K, Zhang Y. Vascular endothelial growth factor-induced expression of its receptors and activation of the MAPK signaling pathway during ovine oocyte maturation in vitro. Theriogenology 2012; 78:1350-60. [PMID: 22898011 DOI: 10.1016/j.theriogenology.2012.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 06/01/2012] [Accepted: 06/03/2012] [Indexed: 12/14/2022]
Abstract
The vascular endothelial growth factor (VEGF) has beneficial effects on ovine oocytes during in vitro maturation and their subsequent early embryonic development, but the biochemical pathway underlying this effect has not been elucidated. Therefore, the focus of the present study was to investigate the activation of the mitogen-activated protein kinase (MAPK) pathway in response to the addition of VEGF to the maturation medium, and to study the subcellular localization of VEGF and its receptors during ovine oocyte maturation. We concluded that: (1) VEGF mainly localized in the cytoplasm, whereas its receptors, fms-tyrosine kinase-1 and kinase domain region (KDR), were localized on the plasma membrane of oocytes; (2) the addition of 5 ng/mL VEGF increased the percentage of oocytes with extruded first polar bodies (50.9 ± 2.2% vs. 34.6 ± 2.9%; treatment vs. control, respectively; P < 0.01) and the rate of oocytes competent to undergo nuclear maturation (70.6 ± 0.9% vs. 62.9 ± 1.9%, P < 0.01); and (3) as the expression of VEGF, fms-tyrosine kinase-1, and KDR increased after supplementation with 5 ng/mL, expression of VEGF, mitogen-activated protein kinase kinase (MEK), and MAPK mRNA, as well as MAPK phosphorylation, were stimulated in a time-dependent manner. We inferred that, in a paracrine manner, exogenous VEGF bound to KDR, its main receptor, and then activated the MAPK signaling pathway, which promoted maturation of ovine oocytes. However, the VEGF system also had an autocrine regulatory loop that contributed to creating an environment optimal for oocyte maturation.
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Affiliation(s)
- L Yan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Kwak SS, Cheong SA, Jeon Y, Lee E, Choi KC, Jeung EB, Hyun SH. The effects of resveratrol on porcine oocyte in vitro maturation and subsequent embryonic development after parthenogenetic activation and in vitro fertilization. Theriogenology 2012; 78:86-101. [PMID: 22445189 DOI: 10.1016/j.theriogenology.2012.01.024] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 01/03/2012] [Accepted: 01/19/2012] [Indexed: 11/19/2022]
Abstract
We investigated the effects of resveratrol, a phytoalexin with various pharmacologic activities, on in vitro maturation (IVM) of porcine oocytes. We investigated intracellular glutathione (GSH) and reactive oxygen species (ROS) levels, as well as gene expression in mature oocytes, cumulus cells, and in vitro fertilization (IVF)-derived blastocysts, and subsequent embryonic development after parthenogenetic activation (PA) and IVF. After 44 h of IVM, no significant difference was observed in maturation of the 0.1, 0.5, and 2.0 μM resveratrol groups (83.0%, 84.1%, and 88.3%, respectively) compared with the control (84.1%), but the 10.0 μM resveratrol group showed significantly decreased nuclear maturation (75.0%) (P < 0.05). The 0.5- and 2.0-μm groups showed a significant (P < 0.05) increase in intracellular GSH levels compared with the control and 10.0 μM group. Intracellular ROS levels in oocytes matured with 2.0 μM resveratrol decreased significantly (P < 0.05) compared with those in the other groups. Oocytes treated with 2.0 μM resveratrol during IVM had significantly higher blastocyst formation rates and total cell numbers after PA (62.1% and 49.1 vs. 48.8%, and 41.4, respectively) and IVF (20.5% and 54.0 vs. 11.0% and 43.4, respectively) than the control group. Cumulus-oocytes complex treated with 2.0 μM resveratrol showed lower expression of apoptosis-related genes compared with mature oocytes and cumulus cells. Cumulus cells treated with 2.0 μM resveratrol showed higher (P < 0.05) expression of proliferating cell nuclear antigen than the control group. IVF-derived blastocysts derived from 2.0 μM resveratrol-treated oocytes also had less (P < 0.05) Bak expression than control IVF-derived blastocysts. In conclusion, 2.0 μM resveratrol supplementation during IVM improved the developmental potential of PA and IVF porcine embryos by increasing the intracellular GSH level, decreasing ROS level, and regulating gene expression during oocyte maturation.
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Affiliation(s)
- Seong-Sung Kwak
- Laboratory of Veterinary Embryology and Biotechnology, College of Veterinary Medicine, Chungbuk National University, Chungbuk, South Korea
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Biswas D, Hyun S. Supplementation with vascular endothelial growth factor during in vitro maturation of porcine cumulus oocyte complexes and subsequent developmental competence after in vitro fertilization. Theriogenology 2011; 76:153-60. [DOI: 10.1016/j.theriogenology.2011.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 01/04/2011] [Accepted: 01/04/2011] [Indexed: 11/24/2022]
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