1
|
Lipinska P, Sell-Kubiak E, Pawlak P, Madeja ZE, Warzych E. Response of Bovine Cumulus-Oocytes Complexes to Energy Pathway Inhibition during In Vitro Maturation. Genes (Basel) 2021; 12:genes12060838. [PMID: 34072406 PMCID: PMC8228821 DOI: 10.3390/genes12060838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/13/2021] [Accepted: 05/25/2021] [Indexed: 12/25/2022] Open
Abstract
Glucose or fatty acids (FAs) metabolisms may alter the ovarian follicle environment and thus determine oocyte and the nascent embryo quality. The aim of the experiment was to investigate the effect of selective inhibition of glucose (iodoacetate + DHEA) or FA (etomoxir) metabolism on in vitro maturation (IVM) of bovine COCs (cumulus-oocyte complexes) to investigate oocyte's development, quality, and energy metabolism. After in vitro fertilization, embryos were cultured to the blastocyst stage. Lipid droplets, metabolome, and lipidome were analyzed in oocytes and cumulus cells. mRNA expression of the selected genes was measured in the cumulus cells. ATP and glutathione relative levels were measured in oocytes. Changes in FA content in the maturation medium were evaluated by mass spectrometry. Our results indicate that only glucose metabolism is substantial to the oocyte during IVM since only glucose inhibition decreased embryo culture efficiency. The most noteworthy differences in the reaction to the applied inhibition systems were observed in cumulus cells. The upregulation of ketone body metabolism in the cumulus cells of the glucose inhibition group suggest possibly failed attempts of cells to switch into lipid consumption. On the contrary, etomoxir treatment of the oocytes did not affect embryo development, probably due to undisturbed metabolism in cumulus cells. Therefore, we suggest that the energy pathways analyzed in this experiment are not interchangeable alternatives in bovine COCs.
Collapse
|
2
|
Jochems R, Gaustad AH, Zak LJ, Grindflek E, Zeremichael TT, Oskam IC, Myromslien FD, Kommisrud E, Krogenaes AK. Ovarian characteristics and in vitro nuclear and cytoplasmic oocyte maturation in Duroc and Landrace pigs. Vet Med Sci 2021; 7:1845-1853. [PMID: 33938143 PMCID: PMC8464249 DOI: 10.1002/vms3.498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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] [Received: 11/23/2020] [Revised: 02/11/2021] [Accepted: 04/07/2021] [Indexed: 01/17/2023] Open
Abstract
Differences in total number of piglets born per litter are observed between the Norwegian Duroc (ND) sire and Norwegian Landrace (NL) dam line. The aim of this study was to evaluate ovarian characteristics, and in vitro nuclear and cytoplasmic oocyte maturation in both breeds. One day after weaning, follicular phase ovaries were collected. Ovary length and weight were measured and the number of follicles (< 3 mm and 3–8 mm) was counted. Cumulus‐oocyte complexes (COCs) were collected and matured for 48 hr. To assess cumulus expansion, COC area was analysed at 0 and 20 hr. Nuclear maturation and cortical granule (CG) distribution were analysed at 20 and 48 hr, and total glutathione (GSH) was measured at 48 hr to further elucidate cytoplasmic maturation. In first parity sows, a smaller ovary length and fewer 3 to 8 mm follicles were observed in ND compared to NL. For all sows, ND COCs covered a significantly smaller area at 0 hr, but a higher cumulus expansion ratio was observed at 20 hr compared to NL (364 ± 46% versus. 278 ± 27%, p < 0.001). At 20 hr, more ND oocytes exhibited advanced stages of nuclear maturation, while more NL oocytes showed advanced stages of CG distribution. Nuclear maturation to MII stage at 48 hr did not differ between ND and NL oocytes (90.1% and 87.7%, respectively). Moreover, no significant differences were observed for GSH content or CG distribution after maturation. In conclusion, differences with regard to ovarian characteristics as well as to cumulus expansion, and nuclear and cytoplasmic oocyte maturation at 20 hr were observed between the breeds. Further studies are required to determine if this subsequently affects in vitro fertilization and embryo development.
Collapse
Affiliation(s)
- Reina Jochems
- Norsvin SA, Hamar, Norway.,Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | | | - Louisa J Zak
- Topigs Norsvin Research Center, Beuningen, The Netherlands
| | | | - Teklu T Zeremichael
- Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
| | - Irma C Oskam
- The Animal Production Experimental Centre, Norwegian University of Life Sciences, Ås, Norway
| | - Frøydis D Myromslien
- Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
| | - Elisabeth Kommisrud
- Department of Biotechnology, Inland Norway University of Applied Sciences, Hamar, Norway
| | - Anette K Krogenaes
- Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| |
Collapse
|
3
|
Schoevers EJ, Santos RR, Roelen BAJ. Susceptibility of Oocytes from Gilts and Sows to Beauvericin and Deoxynivalenol and Its Relationship with Oxidative Stress. Toxins (Basel) 2021; 13:toxins13040260. [PMID: 33917490 PMCID: PMC8067504 DOI: 10.3390/toxins13040260] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/01/2021] [Accepted: 04/03/2021] [Indexed: 01/18/2023] Open
Abstract
Beauvericin (BEA) and deoxynivalenol are toxins produced by Fusarium species that can contaminate food and feed. The aim of this study was to assess the effects of these mycotoxins on the maturation of oocytes from gilts and sows. Furthermore, the antioxidant profiles in the oocytes' environment were assessed. Cumulus-oocyte-complexes (COCs) from gilts and sows were exposed to beauvericin (BEA) or deoxynivalenol (DON) and matured in vitro. As an extra control, these COCs were also exposed to reactive oxygen species (ROS). The maturation was mostly impaired when oocytes from gilts were exposed to 0.02 μmol/L DON. Oocytes from sows were able to mature even in the presence of 5 μmol/L BEA. However, the maturation rate of gilt oocytes was already impaired by 0.5 μmol/L BEA. It was observed that superoxide dismutase (SOD) and glutathione (GSH) levels in the follicular fluid (FF) of gilt oocytes was higher than that from sows. However, the expression of SOD1 and glutathione synthetase (GSS) was higher in the oocytes from sows than in those from gilts. Although DON and BEA impair cell development by diverse mechanisms, this redox imbalance may partially explain the vulnerability of gilt oocytes to these mycotoxins.
Collapse
Affiliation(s)
- Eric J. Schoevers
- Farm Animal Health, Department Population Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 104, 3584 CM Utrecht, The Netherlands;
| | - Regiane R. Santos
- Schothorst Feed Research, P.O. Box 533, 8200 AM Lelystad, The Netherlands
- Correspondence:
| | - Bernard A. J. Roelen
- Embryology, Anatomy and Physiology, Department Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CT Utrecht, The Netherlands;
| |
Collapse
|
4
|
Braga TF, Silva TCF, Marques MG, de Souza AP, Albring D, Silva LP, Caetano AR, Dode MAN, Franco MM. The dynamics of gene expression, lipid composition and DNA methylation reprogramming are different during in vitro maturation of pig oocytes obtained from prepubertal gilts and cycling sows. Reprod Domest Anim 2019; 54:1217-1229. [PMID: 31269288 DOI: 10.1111/rda.13501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/20/2019] [Indexed: 01/21/2023]
Abstract
This study aimed to characterize the gene expression, lipid composition and DNA methylation reprogramming during in vitro maturation (IVM) of pig oocytes with different developmental competencies. We used prepubertal gilts and cycling sows as a model to obtain oocytes with different levels of competency. We found that genes involved in lipid metabolism, SLC27A4, CPT2 and PLIN2, and DNA methylation, DNMT3A, TET1 and TET3, possessed altered transcript expression levels during IVM. Specifically, SLC27A4 mRNA (p = 0.05) increased in oocytes from cycling females, whereas CPT2 (p = 0.05), PLIN2 (p = 0.02) and DNMT3A (p = 0.02) increased in oocytes from prepubertal females during IVM. Additionally, TET3 mRNA increased during IVM in oocytes from prepubertal (p = 0.0005) and cycling females (p = 0.02). The TET1 transcript decreased (p = 0.05) during IVM in oocytes from cycling sows. Regarding lipid composition, mass spectrometry revealed a cluster of ions, with molecular masses higher than m/z 700, which comprises a group of complex phospholipids, was identified in all groups of oocytes, except in those from prepubertal gilts. With respect to DNA methylation reprogramming, it was noted that the less competent oocytes were not able to reprogramme the XIST gene during IVM. We conclude that the maternal mRNA store, lipid composition and epigenetic reprogramming are still being established during maturation and are related to oocyte competence. In addition, we propose that the methylation pattern of the XIST may be used as molecular marker for oocyte competence in pigs.
Collapse
Affiliation(s)
- Thiago Felipe Braga
- Universidade de Brasília - UnB, Brasília, Brazil.,Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil
| | - Thainara Christie Ferreira Silva
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil.,Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Uberlândia, Brazil
| | | | | | | | | | | | | | - Maurício Machaim Franco
- Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil.,Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Uberlândia, Brazil.,Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Brazil
| |
Collapse
|
5
|
Abstract
Maternal age has a significant effect on oocyte developmental competence. Overall, evidence suggests that oocytes from both prepubertal females and reproductively aged females are inherently less competent. Reduced oocyte quality in both age groups is problematic for human medicine and agriculture. Some of the cellular mechanisms implicated in poor oocyte quality associated with maternal age are mitochondrial function and location, reduction of oxygen radicals, balance of metabolic pathways, regulation of maternal mRNAs and appropriate communication between the oocyte and cumulus cells. However, additional knowledge must be gained about the deficiencies present in prepubertal and reproductively aged oocytes that result in poor developmental potential before significant improvement can be achieved. This review discusses the evidence currently available regarding oocyte quality at both ends of the maternal age spectrum, what we know, or hypothesise, about the mechanisms involved and current thoughts regarding potential treatment for improvement.
Collapse
Affiliation(s)
- Rebecca L Krisher
- Colorado Center for Reproductive Medicine, 10290 RidgeGate Circle, Lone Tree, CO 80124, USA. Email
| |
Collapse
|
6
|
Bertoldo MJ, Uddin GM, Youngson NA, Agapiou D, Walters KA, Sinclair DA, Morris MJ, Gilchrist RB. Multigenerational obesity-induced perturbations in oocyte-secreted factor signalling can be ameliorated by exercise and nicotinamide mononucleotide. Hum Reprod Open 2018; 2018:hoy010. [PMID: 30895251 PMCID: PMC6276682 DOI: 10.1093/hropen/hoy010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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] [Received: 12/05/2017] [Revised: 04/05/2018] [Accepted: 05/03/2018] [Indexed: 12/13/2022] Open
Abstract
STUDY QUESTION Can maternal and offspring high-fat diet (HFD)-induced changes in mRNA expression levels in mice be ameliorated by interventions in female offspring? SUMMARY ANSWER Our results indicate that exercise and nicotinamide mononucleotide (NMN) can ameliorate the negative effects of maternal and post-weaning HFD in female offspring. WHAT IS KNOWN ALREADY Maternal and post-weaning HFD can perturb offspring developmental trajectories. As rates of maternal obesity are rising globally, there is a need for effective treatments in offspring to ameliorate the negative effects from a maternal obesogenic environment. Modulation of the nicotinamide adenine dinucleotide (NAD+) pathway by exercise and the NAD+ precursor NMN has previously been shown to reduce the effects of obesity. STUDY DESIGN SIZE DURATION This study consisted of a multigenerational study using C57Bl6 mice. Mice were fed a control (chow) or HFD ad libitum throughout mating, pregnancy and lactation (n = 13-25). Female offspring (n = 72) were then also supplied either a chow or HFD post-weaning. At 9 weeks of age offspring from HFD dams were subjected to exercise on a treadmill for 9 weeks or at 16 weeks of age administered NMN (i.p.) for 2.5 weeks. At 18.5 weeks mice were euthanized and ovaries and cumulus-oocyte complexes (COC) were collected to examine the possibility of ameliorating the negative effects of maternal and post-weaning HFD. PARTICIPANTS/MATERIALS SETTING METHODS Ovary and COC mRNA expression was analysed using RT-qPCR. An initial screen of candidate genes was developed to test which molecular pathways may be involved in generating adverse reproductive system effects. For histological analysis, ovarian tissue was fixed in paraformaldehyde and embedded in paraffin and stained with haematoxylin and eosin. The numbers of primordial, primary, secondary and antral follicles were counted. MAIN RESULTS AND THE ROLE OF CHANCE In the offspring's COC, maternal obesity increased both growth differentiation factor 9 (Gdf9: 2-fold; P < 0.05, HFD versus chow) and bone morphogenetic protein 15 (Bmp15: 4-fold; P < 0.05, HFD versus chow) mRNA expression levels while exercise and NMN interventions did not regulate Gdf9 and Bmp15 in the same manner. In whole ovary, maternal diet programmed a 25-50% reduction in FSH receptor and sirtuin-3 mRNA expression levels in daughter ovaries (P < 0.05, HFD versus chow). There was a significant interaction between HFD and intervention on the proportion of large preantral and preovulatory follicles (P < 0.05). However, the increase in preovulatory follicles did not translate to increased oocyte yield. NMN administration resulted in reduced body weight in HFD-fed individuals. LIMITATIONS REASONS FOR CAUTION It is unclear if the changes in oocyte mRNA expression levels reported here will impact oocyte quality and fertility in offspring. Offspring ovulation rate or fecundity could not be studied here and fertility trials are required to determine if the changes in gene expression do reduce fertility. WIDER IMPLICATIONS OF THE FINDINGS Our results demonstrate that maternal and offspring HFD perturbs key signalling pathways that are known to regulate fertility in mice, highlighting the importance of interventions in helping to prevent the declining rates of fertility in the context of the current obesity epidemic. STUDY FUNDING/COMPETING INTERESTS This work was supported by grants and fellowships from the National Health and Medical Research Council to R.B.G. (APP1023210, APP1062762, APP1117538) and to M.J.M. and D.A.S. (APP1044295). DAS is a consultant to and inventor on patents licenced to Ovascience, Metrobiotech and GlaxoSmithKline. The other authors declare that there is no conflict of interest.
Collapse
Affiliation(s)
- M J Bertoldo
- School of Women's and Children's Health, Fertility and Research Centre, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - G M Uddin
- Department of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - N A Youngson
- Department of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - D Agapiou
- School of Women's and Children's Health, Fertility and Research Centre, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - K A Walters
- School of Women's and Children's Health, Fertility and Research Centre, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - D A Sinclair
- Department of Genetics, Paul F. Glenn Laboratories for the Biological Mechanisms of Aging, Harvard Medical School, Boston, MA, USA
| | - M J Morris
- Department of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - R B Gilchrist
- School of Women's and Children's Health, Fertility and Research Centre, University of New South Wales, Sydney, New South Wales 2052, Australia
| |
Collapse
|
7
|
de Souza DK, Salles LP, Camargo R, Gulart LVM, Costa e Silva S, de Lima BD, Torres FAG, Rosa e Silva AAM. Effects of PI3K and FSH on steroidogenesis, viability and embryo development of the cumulus–oocyte complex after in vitro culture. ZYGOTE 2018; 26:50-61. [DOI: 10.1017/s0967199417000703] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
SummaryThe purpose of this study was to evaluate the effects of FSH and PI3K on the nuclear maturation, viability, steroidogenesis and embryo development of bovine cumulus–oocyte complexes (COCs). Oocyte maturation was achieved with MIV B, MIV B+100 µM LY294002, MIV B+10 ng/mL follicle stimulating hormone (FSH), or MIV B+10 ng/mL FSH+100 µM LY294002 treatments for 22–24 h. After the cultured COCs were denuded, oocytes were separated into those that extruded polar bodies (mature) and those that did not, and real-time polymerase chain reaction (PCR) for BAX, BCL2, LHR, FSHR, CYP11A1, CYP19A1 and HSD17B1 genes was performed. The culture medium was collected to determine the levels of 17β-estradiol (E2) and progesterone (P4). The trypan blue test was used to study COC viability, and embryo development was evaluated. FSH increased nuclear maturation and PI3K blocked the maturation but did not influence oocyte viability. BAX and BCL2 expression levels in the cumulus cells were only affected by FSH, and the BAX levels decreased after treatment with LY294002. FSH increased the levels of E2 and P4, however inhibition of PI3K decreased E2 levels. MIV B enhanced levels of LHR, FSHR, CYP11A1, CYP19A1 and HSD17B1, whereas LY294002 inhibited the expression levels of all genes. MIV B+FSH decreased the expression levels of all genes except CYP11A1. LY294002 did not demonstrate any effects in the presence of FSH. Embryo development was significantly decreased when the MIV B+FSH medium was used. In conclusion, FSH controls the steroidogenesis, viability and gene expression in COCs. PI3K plays essential roles in nuclear maturation, steroidogenesis and embryo development.
Collapse
|
8
|
Abstract
Although it is well accepted that egg quality decreases with advanced maternal age, we do not know how it is affected at the earliest ages during the pubertal transition-likely because this young population is not typically reproducing. However, in the setting of fertility preservation, more childhood cancer patients are surviving their diagnosis due to medical advances, forcing patients and their families to consider their future fertility at a very young age. Ex vivo in vitro maturation, in which cumulus oocyte complexes harvested from ovarian tissue are cultured to obtain mature gametes, is gaining traction as a fertility preservation method that is coupled to ovarian tissue cryopreservation. This method is particularly suitable for prepubertal and young adolescent girls, although live births have not yet been reported in gametes derived from females during the pubertal transition. Importantly, the period immediately following menarche in primate species (non-human primate and human) is characterized by relative subfecundity or sterility, and data from agricultural species and humans suggest that this may in part be due to increased chromosomal abnormalities in the egg. Together these data provide a compelling rationale for pushing the age boundary of when egg quality is considered, for performing further basic research to understand egg quality during this period, and for appropriately counseling patients.
Collapse
Affiliation(s)
- Francesca E. Duncan
- Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL, United States
| |
Collapse
|
9
|
Xiong XR, Lan DL, Li J, Lin YQ, Li MY. Supplementation of cilostazol during in vitro maturation enhances the meiosis and developmental competence of yak oocytes by influencing cAMP content and mRNA expression. Anim Reprod Sci 2017; 186:21-30. [PMID: 28935242 DOI: 10.1016/j.anireprosci.2017.08.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 07/24/2017] [Indexed: 01/11/2023]
Abstract
The efficiency of in vitro embryo production remains low compared with that observed in vivo. Recent studies have independently shown that cyclic adenosine monophosphate (cAMP) modulation prior to in vitro maturation (IVM) supplementation improves oocyte developmental competence. In this context, special cAMP modulators have been applied during IVM as promising alternatives to improve this biotechnology. Accordingly, this study was conducted to evaluate the effects of treatment with cilostazol, a PDE3 inhibitor, during pre-IVM culture on oocyte meiotic maturation in yak. Immature yak cumulus-oocyte complexes (COCs) were treated in vitro without (control) or with 5μM cilostazol for 0, 2, or 4h prior to IVM. Results showed that the presence of cilostazol in pre-IVM medium significantly increased the percentages of oocytes at metaphase II stage compared with that in the control groups (P<0.05). Moreover, pre-IVM with cilostazol significantly enhanced intraoocyte cAMP and glutathione (GSH) levels at the pre-IVM or IVM phase relative to the no pre-IVM groups (P<0.05). After in vitro fertilization (IVF) and parthenogenetic activation (PA), the developmental competences of oocytes and embryo quality were improved significantly after pre-IVM with cilostazol compared with the control groups (P<0.05), given that the cleavage and blastocyst formation rates and the total number of blastocyst cells were increased. The presence of cilostazol also increased the levels of mRNA expression for adenylate cyclase 3 (ADCY3) and protein kinase 1 (PKA1), as well as decreased the abundance of phosphodiesterase 3A (PDE3A) in COCs and IVF blastocysts, compared with their control counterparts (P<0.05). The results demonstrated that the meiotic progression of immature yak oocytes could be reversibly affected by cAMP modulators. By contrast, treatment with cilostazol during pre-IVM positively affected the developmental competence of yak oocytes, probably by improving intraoocyte cAMP and GSH levels and regulating mRNA expression patterns. We concluded that appropriate treatment with cilostazol during pre-IVM would be beneficial for oocyte maturation in vitro.
Collapse
Affiliation(s)
- Xian-Rong Xiong
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China; College of Life Science and Technology, Southwest Minzu University, Chengdu, Sichuan 610041, China
| | - Dao-Liang Lan
- College of Life Science and Technology, Southwest Minzu University, Chengdu, Sichuan 610041, China
| | - Jian Li
- College of Life Science and Technology, Southwest Minzu University, Chengdu, Sichuan 610041, China
| | - Ya-Qiu Lin
- College of Life Science and Technology, Southwest Minzu University, Chengdu, Sichuan 610041, China
| | - Ming-Yang Li
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400716, China.
| |
Collapse
|