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Jegal HG, Park HJ, Kim JW, Yang SG, Kim MJ, Koo DB. Ruthenium red improves blastocyst developmental competence by regulating mitochondrial Ca 2+ and mitochondrial functions in fertilized porcine oocytes in vitro. J Reprod Dev 2020; 66:377-386. [PMID: 32321875 PMCID: PMC7470902 DOI: 10.1262/jrd.2020-013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ruthenium red (RR) inhibits calcium (Ca2+) entry from the cytoplasm to the mitochondria, and is involved in maintenance of Ca2+ homeostasis in mammalian
cells. Ca2+ homeostasis is very important for further embryonic development of fertilized oocytes. However, the effect of RR on mitochondria-Ca2+
(mito-Ca2+) levels during in vitro fertilization (IVF) on subsequent blastocyst developmental capacity in porcine is unclear. The present study
explored the regulation of mito-Ca2+ levels using RR and/or histamine in fertilized oocytes and their influence on blastocyst developmental capacity in pigs. Red
fluorescence intensity by the mito-Ca2+ detection dye Rhod-2 was significantly increased (P < 0.05) in zygotes 6 h after IVF compared to mature oocytes. Based on
these results, we investigated the changes in mito-Ca2+ by RR (10 and 20 μM) in presumptive zygotes using Rhod-2 staining and mito-Ca2+ uptake 1 (MICU1)
protein levels as an indicator of mito-Ca2+ uptake using western blot analysis. As expected, RR-treated zygotes displayed decreased protein levels of MICU1 and Rhod-2
red fluorescence intensity compared to non-treated zygotes 6 h after IVF. Blastocyst development rate of 20 μM RR-treated zygotes was significantly increased 6 h after IVF (P <
0.05) due to improved mitochondrial functions. Conversely, the blastocyst development rate was significantly decreased in histamine (mito-Ca2+ inhibitor, 100 nM) treated
zygotes (P < 0.05). The collective results demonstrate that RR improves blastocyst development in porcine embryos by regulating mito-Ca2+ and MICU1 expression
following IVF.
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Affiliation(s)
- Ho-Geun Jegal
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea.,Institute of Infertility, Daegu University, Gyeongbuk 38453, Republic of Korea
| | - Hyo-Jin Park
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea.,Institute of Infertility, Daegu University, Gyeongbuk 38453, Republic of Korea
| | - Jin-Woo Kim
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea.,Institute of Infertility, Daegu University, Gyeongbuk 38453, Republic of Korea
| | - Seul-Gi Yang
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea.,Institute of Infertility, Daegu University, Gyeongbuk 38453, Republic of Korea
| | - Min-Ji Kim
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea.,Institute of Infertility, Daegu University, Gyeongbuk 38453, Republic of Korea
| | - Deog-Bon Koo
- Department of Biotechnology, College of Engineering, Daegu University, Gyeongbuk 38453, Republic of Korea.,Institute of Infertility, Daegu University, Gyeongbuk 38453, Republic of Korea
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Kim JW, Park HJ, Yang SG, Kim MJ, Kim IS, Jegal HG, Wee G, Yang HY, Park JJ, Choo YK, Koo DB. Exogenous Ganglioside GT1b Enhances Porcine Oocyte Maturation, Including the Cumulus Cell Expansion and Activation of EGFR and ERK1/2 Signaling. Reprod Sci 2020; 27:278-289. [PMID: 32046393 DOI: 10.1007/s43032-019-00004-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 03/29/2019] [Indexed: 11/26/2022]
Abstract
Ganglioside GT1b is well-known for its role in cytokine production and in activating epidermal growth factor receptor (EGFR)-mediated signaling pathways in cancer cells. However, there are no reports that clearly elucidate the role of GT1b in EGFR-mediated signaling pathways in porcine oocytes during the process of in vitro maturation (IVM). In this study, we investigated the role of GT1b in EGFR-mediated activation of the ERK1/2 pathway in porcine cumulus-oocyte complexes (COCs) at 44 h of IVM. Our data show that expression of the ST3GAL2 protein significantly increased in porcine COCs at 44 h irrespective of treatment with EGF. Meiotic maturation and mRNA levels of factors (HAS2, TNFAIP6, and PTX3) related to cumulus cell expansion significantly increased in COCs treated with 2 μM GT1b during IVM in the absence of EGF. They also increased in COCs treated with EGF/GT1b as compared to that in the other groups. Interestingly, protein levels of EGFR, phospho-EGFR, ERK1/2, and phospho-ERK1/2 dramatically increased in COCs treated with EGF/GT1b. Moreover, the rate of fertilization and the developmental competence of blastocyst were significantly higher in EGF/GT1b-treated COCs. Taken together, these results suggest that exogenous GT1b improves meiotic maturation and cumulus cell expansion in porcine COCs via activation of EGFR-mediated ERK1/2 signaling.
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Affiliation(s)
- Jin-Woo Kim
- Department of Biotechnology, College of Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - Hyo-Jin Park
- Department of Biotechnology, College of Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - Seul-Gi Yang
- Department of Biotechnology, College of Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - Min-Ji Kim
- Department of Biotechnology, College of Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - In-Su Kim
- Department of Biotechnology, College of Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - Ho-Geun Jegal
- Department of Biotechnology, College of Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea
| | - Gabbine Wee
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Hee-Young Yang
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), 80 Cheombok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Joung Jun Park
- Animal Reproduction & Biotechnology Center, Myung-Poom Hanwoo Consulting, Hoengseong, 25232, Republic of Korea
| | - Young-Kug Choo
- Department of Biological Science, College of Natural Sciences, Wonkwang University, 460, Iksandae-ro, Iksan, Jeonbuk, 54538, Republic of Korea
| | - Deog-Bon Koo
- Department of Biotechnology, College of Engineering, Daegu University, 201 Daegudae-ro, Jillyang, Gyeongsan, Gyeongbuk, 38453, Republic of Korea.
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