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Mateo-Otero Y, Yeste M, Damato A, Giaretta E. Cryopreservation and oxidative stress in porcine oocytes. Res Vet Sci 2021; 135:20-26. [PMID: 33418187 DOI: 10.1016/j.rvsc.2020.12.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/04/2020] [Accepted: 12/29/2020] [Indexed: 02/06/2023]
Abstract
Several vitrification protocols have been established for porcine oocytes so as to facilitate gene banking of female germplasm. Although live piglets have been successfully produced from pig oocytes vitrified at the germinal vesicle (GV) stage, the competence of vitrified oocytes to develop into the blastocyst stage is greatly compromised following cryopreservation. The focus of this review is to elucidate the impact of cryopreservation on the redox balance of pig oocytes, making special reference to the relevance of non-enzymatic and enzymatic antioxidant defences. Besides, the regulation of gene expression in response to oxidative stress is also considered. Finally, we discuss the effects of supplementing maturation and vitrification media with the exogenous non-enzymatic antioxidants that have hitherto yielded the most relevant results.
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Affiliation(s)
- Yentel Mateo-Otero
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, E-17003 Girona, Spain; Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, E-17003 Girona, Spain.
| | - Anna Damato
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy
| | - Elisa Giaretta
- Department of Comparative Biomedicine and Food Science, University of Padova, Legnaro, PD, Italy.
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Pereira BA, Zangeronimo MG, Castillo-Martín M, Gadani B, Chaves BR, Rodríguez-Gil JE, Bonet S, Yeste M. Supplementing Maturation Medium With Insulin Growth Factor I and Vitrification-Warming Solutions With Reduced Glutathione Enhances Survival Rates and Development Ability of in vitro Matured Vitrified-Warmed Pig Oocytes. Front Physiol 2019; 9:1894. [PMID: 30692931 PMCID: PMC6340283 DOI: 10.3389/fphys.2018.01894] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Accepted: 12/14/2018] [Indexed: 12/22/2022] Open
Abstract
The present study sought to determine whether in vitro maturation (IVM) of pig oocytes in a medium supplemented with insulin growth factor-I (IGF-I) and subsequent vitrification with or without reduced glutathione (GSH) affect their quality and developmental competence, and the expression of genes involved in antioxidant, apoptotic and stress responses. In Experiment 1, cumulus-oocyte complexes were matured in the absence or presence of IGF-I (100 ng·mL−1) and then vitrified-warmed with or without 2 mM of GSH. Maturation rate was evaluated before vitrification, and oocyte viability, DNA fragmentation and relative transcript abundances of BCL-2-associated X protein (BAX), BCL2-like1 (BCL2L1), heat shock protein 70 (HSPA1A), glutathione peroxidase 1 (GPX1) and superoxide dismutase 1 (SOD1) genes were assessed in fresh and vitrified-warmed oocytes. In Experiment 2, fresh and vitrified-warmed oocytes were in vitro fertilized and their developmental competence determined. Whereas the addition of IGF-I to maturation medium had no effect on oocyte maturation, it caused an increase in the survival rate of vitrified-warmed oocytes. This effect was accompanied by a concomitant augment in the relative transcript abundance of HSPA1A and a decrease of BAX. Furthermore, the addition of GSH to vitrification-warming media increased survival rates at post-warming. Likewise, the action of GSH was concomitant with an increase in the relative abundance of GPX1 and a decrease of BAX transcript. Blastocyst rates of vitrified-warmed oocytes did not differ from their fresh counterparts when IGF-I and GSH were combined. In conclusion, supplementing maturation medium with 100 ng·mL−1 IGF-I and vitrification-warming solutions with 2 mM GSH improves the quality and cryotolerance of IVM pig oocytes, through a mechanism that involves BAX, GPX1 and HSPA1A expression.
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Affiliation(s)
- Barbara Azevedo Pereira
- Unit of Cell Biology, Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain.,Laboratory of Animal Physiology and Pharmacology, Department of Veterinary Medicine, Federal University of Lavras, Lavras, Brazil
| | - Marcio Gilberto Zangeronimo
- Laboratory of Animal Physiology and Pharmacology, Department of Veterinary Medicine, Federal University of Lavras, Lavras, Brazil
| | - Miriam Castillo-Martín
- Unit of Cell Biology, Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Beatrice Gadani
- Unit of Cell Biology, Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain.,Department of Veterinary Medical Sciences, University of Bologna, Bologna, Italy
| | - Bruna Resende Chaves
- Unit of Cell Biology, Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain.,Laboratory of Animal Physiology and Pharmacology, Department of Veterinary Medicine, Federal University of Lavras, Lavras, Brazil
| | - Joan Enric Rodríguez-Gil
- Unit of Animal Reproduction, Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Autonomous University of Barcelona, Cerdanyola del Vallès, Spain
| | - Sergi Bonet
- Unit of Cell Biology, Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Marc Yeste
- Unit of Cell Biology, Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Faculty of Sciences, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
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Jeong PS, Yoon SB, Choi SA, Song BS, Kim JS, Sim BW, Park YH, Yang HJ, Mun SE, Kim YH, Kang P, Jeong KJ, Lee Y, Jin YB, Huh JW, Lee SR, Koo DB, Park YI, Kim SU, Chang KT. Iloprost supports early development of in vitro-produced porcine embryos through activation of the phosphatidylinositol 3-kinase/AKT signalling pathway. Reprod Fertil Dev 2018; 29:1306-1318. [PMID: 27279419 DOI: 10.1071/rd15391] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 04/20/2016] [Indexed: 12/11/2022] Open
Abstract
Despite evidence of the presence of prostaglandin (PG) I2 in mammalian oviducts, its role in early development of in vitro-produced (IVP) embryos is largely unknown. Thus, in the present study we examined the effects of iloprost, a PGI2 analogue, on the in vitro developmental competence of early porcine embryos and the underlying mechanism(s). To examine the effects of iloprost on the development rate of IVF embryos, iloprost was added to the in vitro culture (IVC) medium and cultured for 6 days. Supplementation of the IVC medium with iloprost significantly improved developmental parameters, such as blastocyst formation rate, the trophectoderm:inner cell mass ratio and cell survival in IVF and parthenogenetically activated (PA) embryos. In addition, post-blastulation development into the expanded blastocyst stage was improved in iloprost-treated groups compared with controls. Interestingly, the phosphatidylinositol 3-kinase (PI3K)/AKT signalling pathway was significantly activated by iloprost supplementation in a concentration-dependent manner (10-1000nM), and the beneficial effects of iloprost on the early development of porcine IVF and PA embryos was completely ablated by treatment with 2.5μM wortmannin, a PI3K/AKT signalling inhibitor. Importantly, expression of the PI3K/AKT signalling pathway was significantly reduced in somatic cell nuclear transfer (SCNT) compared with IVF embryos, and iloprost supported the early development of SCNT embryos, as was the case for IVF and PA embryos, suggesting a consistent effect of iloprost on the IVC of IVP porcine embryos. Together, these results indicate that iloprost can be a useful IVC supplement for production of IVP early porcine embryos with high developmental competence.
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Affiliation(s)
- Pil-Soo Jeong
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Seung-Bin Yoon
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Seon-A Choi
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Bong-Seok Song
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Ji-Su Kim
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Bo-Woong Sim
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Young-Ho Park
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Hae-Jun Yang
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Seong-Eun Mun
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Young-Hyun Kim
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Philyong Kang
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Kang-Jin Jeong
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Youngjeon Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Yeung Bae Jin
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Jae-Won Huh
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Sang-Rae Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Deog-Bon Koo
- Department of Biotechnology, College of Engineering, Daegu University, Jillyang-eup, Gyeongsan-si, Gyeongsangbuk-do 38453, Republic of Korea
| | - Young Il Park
- Graduate School Department of Digital Media, Ewha Womans University, Daehyeon-dong, Seodaemun-gu, Seoul 03760, Korea
| | - Sun-Uk Kim
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
| | - Kyu-Tae Chang
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, 30, Yeongudanjiro, Ochangeup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28116, Republic of Korea
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Chen P, Pan Y, Cui Y, Wen Z, Liu P, He H, Li Q, Peng X, Zhao T, Yu S. Insulin-like growth factor I enhances the developmental competence of yak embryos by modulating aquaporin 3. Reprod Domest Anim 2017; 52:825-835. [DOI: 10.1111/rda.12985] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 03/19/2017] [Indexed: 12/27/2022]
Affiliation(s)
- P Chen
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Y Pan
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Y Cui
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Z Wen
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - P Liu
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - H He
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - Q Li
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - X Peng
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - T Zhao
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - S Yu
- Gansu Province Livestock Embryo Engineering Research Center; College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
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Zygote arrest 1, nucleoplasmin 2, and developmentally associated protein 3 mRNA profiles throughout porcine embryo development in vitro. Theriogenology 2016; 86:2254-2262. [PMID: 27566850 DOI: 10.1016/j.theriogenology.2016.07.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 07/15/2016] [Accepted: 07/15/2016] [Indexed: 11/23/2022]
Abstract
Maternal effect genes (MEGs) are expressed in oocytes and embryos and play an important role in activation of the embryonic genome. An abnormality in the expression of these genes may lead to arrest of embryonic cleavage or to altered transcription of factors responsible for further embryonic development. In vitro-produced porcine embryos have a lower developmental potential than embryos produced in vivo. We hypothesized that in vitro embryo culture conditions have an effect on the expression of MEGs at various developmental stages, which may affect their developmental potential. Here, using real-time polymerase chain reaction, we examined mRNA profiles of the MEGs, zygote arrest 1 (ZAR-1), nucleoplasmin 2 (NPM2), and developmentally associated pluripotency protein 3 (DPPA3), in porcine oocytes and embryos produced in vitro and in vivo. Further, we evaluated the effect of the combined addition of EGF, interleukin 1β, and leukemia inhibitory factor to the porcine in vitro embryo production system on mRNA profiles of selected MEGs. Finally, we studied localization of the MEG protein products in in vitro-obtained oocytes and embryos using confocal microscopy. We found that the ZAR-1 mRNA profile differed throughout in vitro and in vivo embryo development. In the embryos produced in vitro, the decrease in ZAR-1 mRNA levels was observed at the 2-cell stage, whereas in in vivo embryos, ZAR-1 mRNA levels declined significantly starting at the 4-cell stage (P < 0.05). In vitro culture conditions affected transiently also DPPA3 mRNA levels at the 4-cell stage (P < 0.05). There was no difference in the NPM2 mRNA profile during in vitro and in vivo embryo development. The ZAR-1 and DPPA3 proteins were localized in the cytoplasm of the oocytes and embryos, whereas the NPM2 protein was found both in the cytoplasm and in the nucleus. All proteins were expressed until blastocyst stage. The addition of EGF and cytokines to the culture medium decreased DPPA3 mRNA levels in 8-cell embryos (P < 0.05). This study indicated that IVC conditions affect ZAR-1 mRNA levels before the 4-cell stage, which may disturb the activation of the embryonic genome in pigs. The expression of the proteins after the 4-cell to 8-cell transition indicates that these factors play a role beyond activation of the embryonic genome. Supplementation of the culture media with EGF and cytokines affects DPPA3 mRNA levels after maternal to embryonic transition.
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Lee HR, Gupta MK, Kim DH, Hwang JH, Kwon B, Lee HT. Poly(ADP-ribosyl)ation is involved in pro-survival autophagy in porcine blastocysts. Mol Reprod Dev 2015; 83:37-49. [PMID: 26440043 DOI: 10.1002/mrd.22588] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 10/02/2015] [Indexed: 12/31/2022]
Abstract
Poly(ADP-ribosyl)ation (PARylation) prevents apoptosis through its involvement in pro-survival autophagy in cultured cells; whether or not the same is true for pre-implantation embryos has not yet been documented. In this study, we investigated the participation of PARylation and autophagy in in vitro porcine pre-implantation embryo development. The transcript levels of autophagy-related genes and poly(ADP-ribose) polymerase 1 (PARP1), an enzyme required for PARylation, were transiently up-regulated by fertilization, decreased at the late 1-cell stage, and maintained until the blastocyst stage. LC3, a marker of autophagosomes, and poly(ADP-ribose) (PAR) polymer were present in all stages of pre-implantation development. Exposure of embryos to 3-methyladenine, an autophagy inhibitor, or 3-aminobenzamide, a PARP inhibitor, suppressed the development of blastocysts. Pharmacological inhibition of PARylation further suppressed pro-survival autophagy by decreasing the expression of autophagy-related genes (ATG5, BECLIN1, and LC3) and decreasing LC3 protein abundance while increasing the rate of apoptosis in blastocysts. Deficiency in autophagy also induced abnormal accumulation of SQSTM1/p62 aggregates in porcine blastocysts. Collectively, these data suggest that PARylation is involved in selective autophagic degradation of ubiquitinated proteins, functioning in a pro-survival role, in porcine in vitro-produced embryos. These pro-survival regulatory mechanisms may be important for the control of embryo quality.
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Affiliation(s)
- Hye Ran Lee
- Department of Animal Biotechnology, Bio-Organ Research Center/Animal Resources Research Center, Konkuk University, Seoul, South Korea
| | - Mukesh Kumar Gupta
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha, India
| | - Duk Hyeon Kim
- Department of Animal Biotechnology, Bio-Organ Research Center/Animal Resources Research Center, Konkuk University, Seoul, South Korea
| | - Jeong Ho Hwang
- Department of Animal Biotechnology, Bio-Organ Research Center/Animal Resources Research Center, Konkuk University, Seoul, South Korea
| | - Bumsup Kwon
- Department of Animal Biotechnology, Bio-Organ Research Center/Animal Resources Research Center, Konkuk University, Seoul, South Korea
| | - Hoon Taek Lee
- Department of Animal Biotechnology, Bio-Organ Research Center/Animal Resources Research Center, Konkuk University, Seoul, South Korea
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Bogacki M, Wasielak M, Kitewska A, Bogacka I, Jalali BM. The effect of hormonal estrus induction on maternal effect and apoptosis-related genes expression in porcine cumulus-oocyte complexes. Reprod Biol Endocrinol 2014; 12:32. [PMID: 24885667 PMCID: PMC4012087 DOI: 10.1186/1477-7827-12-32] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 03/27/2014] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The effect of hormonal estrus induction on maternal effect (MATER - maternal antigen that embryo requires, ZAR-1 - zygote arrest 1, and BMP15 - bone morphogenetic protein 15) and apoptosis-related genes expression (BCL-2 and BAX) in porcine cumulus-oocyte complexes (COCs) and selected follicular parameters was investigated in this study. METHODS Gilts were divided into three groups: (I) with natural estrus; (II) stimulated with PMSG/hCG; and (III) with PMSG/hCG + PGF2alpha. Analysis of maternal effect and apoptosis-related transcripts expression in COCs, and progesterone synthesis pathway genes expression (P450scc and 3betaHSD) in granulosa cells was performed by qPCR. BMP15 protein expression in follicular fluid (FF) was analyzed by western blot. Oocyte nuclear maturation was assessed by aceto-orcein staining. Progesterone (P4) and estradiol (E2) concentrations in FF and serum were measured by ELISA. Data were analyzed with the one-way ANOVA and Bonferroni post-test or Kruskal-Wallis test and Dunns post-test. RESULTS The highest expression of MATER, ZAR-1, and BMP15 genes was found in COCs recovered from gilts treated with PMSG/hCG when compared to PMSG/hCG + PGF2alpha-stimulated or non-stimulated gilts. Hormonal treatment did not affect the BMP15 protein expression in FF, but increased the expression of genes participating in P4 synthesis in granulosa cells. The higher percentage of immature oocytes was found in PMSG/hCG-treated when compared to the non-stimulated gilts. The expression of BCL-2 and BAX mRNA, and BCL-2/BAX mRNA ratio was significantly higher in COCs derived from PMSG/hCG-treated when compared to PMSG/hCG + PGF2alpha-treated or non-stimulated subjects. The level of P4 in serum was similar in animals from all experimental groups, while its concentration in FF was greater in gilts subjected to PMSG/hCG treatment than in PMSG/hCG + PGF2alpha-stimulated and non-stimulated gilts. The concentration of E2 did not differ in the serum or FF between the control group and the hormonally stimulated groups. CONCLUSIONS Hormonal induction of estrus affected maternal effect gene transcripts levels in COCs and and oocyte nuclear maturation. The inclusion of PGF2alpha into the stimulation protocol enabled maintaining of physiological concentration of P4 in FF. Additionally, both hormonal treatments seem to be beneficial for apoptosis prevention through increasing BCL-2/BAX transcript ratio.
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Affiliation(s)
- Marek Bogacki
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, Olsztyn 10-748, Poland
| | - Marta Wasielak
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, Olsztyn 10-748, Poland
| | - Anna Kitewska
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, Olsztyn 10-748, Poland
| | - Iwona Bogacka
- Department of Animal Physiology, University of Warmia and Mazury, Oczapowskiego 2, Olsztyn 10-719, Poland
| | - Beenu Moza Jalali
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, Olsztyn 10-748, Poland
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Wang L, Xu X, Huo N, Guo H, Wang D, Liu H. A combination of insulin and ubiquitin A20 promotes osteocalcin expression in adipose-derived stem cells. Biochem Cell Biol 2013; 91:513-8. [PMID: 24219294 DOI: 10.1139/bcb-2013-0043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Osteocyte generation can be used in bone defect repair; the generation efficiency needs to be further improved. This study aims to evaluate the role of ubiquitin A20 (A20) in facilitating the expression of osteocalcin in adipose-derived stem cells (ADSCs). In this study, adipose tissue was obtained from 10 healthy human subjects; ADSCs were isolated from the adipose samples. The ADSCs were transfected with core binding factor alpha 1 (Cbfa1) and/or insulin-like growth factor-1 receptor (IGF-1R). Expression of osteocalcin, A20 in ADSCs was assessed by quantitative RT-PCR (qRT-PCR) and Western blotting. Apoptosis of ADSCs was analyzed by flow cytometry. The results showed that after the gene transfection and stimulation of insulin, the ADSCs expressed high levels of osteocalcin. However, apoptotic ADSCs were induced by the activation of IGF-1R. Exposure to insulin down-regulated the expression of Bcl-xL and A20, and increased Bax, in ADSCs. The addition of exogenous A20 prevented the ADSC apoptosis. We conclude that activation of IGF-1R can induce apoptosis in ADSCs, which can be prevented by addition of exogenous A20.
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Affiliation(s)
- Lin Wang
- Department of Stomatology, General Hospital of PLA, Beijing 100853, China
| | - Xia Xu
- Department of Stomatology, General Hospital of PLA, Beijing 100853, China
| | - Na Huo
- Department of Stomatology, General Hospital of PLA, Beijing 100853, China
| | - Huiling Guo
- Department of Ophthalmology, Chinese PLA 306 Hospital, Beijing 100853, China
| | - Dongshen Wang
- Department of Stomatology, General Hospital of PLA, Beijing 100853, China
| | - Hongchen Liu
- Department of Stomatology, General Hospital of PLA, Beijing 100853, China
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