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Fontes PK, Dos Santos EC, da Rocha HC, de Lima CB, Milazzotto MP. Metabolic stressful environment drives epigenetic modifications in oviduct epithelial cells. Theriogenology 2024; 215:151-157. [PMID: 38070214 DOI: 10.1016/j.theriogenology.2023.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/22/2023] [Accepted: 11/22/2023] [Indexed: 01/06/2024]
Abstract
The oviduct provides a suitable microenvironment from the gametes' final maturation until initial embryo development. Dynamic functional changes are observed in the oviduct cells, mainly controlled by steroid hormones and well-orchestrated during the estrous cycle. However, based on the roles played by the oviduct, additional layers of complexity might be present in its regulatory process. There is a cellular process that includes metabolic adaptation that can guide molecular modifications. This process is known as metaboloepigenetics. Therefore, we aimed to better understand how this crosstalk occurs in oviductal epithelial cells (OEC). Due to limited in situ access to the oviduct, we used the primary in vitro cell culture as a culture model and glucose as a metabolic disturbed factor. For that, cells derived from the oviductal epithelial layer were collected from cows at either follicular or luteal stages (n = 4 animals per group). They were cultured on a monolayer culture system under normoglycemic (2.7 mM glucose) or hyperglycemic conditions (27 mM glucose). On day five of culture, attached cells were submitted to analysis of mitochondrial metabolism (mitochondrial membrane potential - MMP) and epigenetics markers (5- methylcytosine - 5 mC and histone 3 lysine 9 acetylation - H3K9ac). Moreover, the culture media were submitted to the metabolites analysis profile by Raman spectrometry. Data were analyzed considering the effect of glucose level (normoglycemic vs. hyperglycemic), stages when OEC were harvested (follicular vs. luteal), and their interaction (glucose level * cycle stage) by two-way ANOVA. As a result, the high glucose level decreased the H3K9ac and MMP levels but did not affect the 5 mC. Regardless of the metabolic profile of the culture media, the glucose level was the only factor that changed the Raman shifts abundance. Although this present study evaluated oviductal epithelial cells after being submitted to an in vitro monolayer culture system, which is known to lead to cell dedifferentiation, yet, these results provide evidence of a relationship between epigenetic reprogramming and energy metabolism under these cell culture conditions. In conclusion, the levels of metabolites in culture media may be crucial for cellular function and differentiation, meaning that it should be considered in studies culturing oviductal cells.
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Affiliation(s)
- Patricia Kubo Fontes
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil
| | - Erika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil
| | - Heloise Cale da Rocha
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil
| | - Camila Bruna de Lima
- Département des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Canada
| | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo André, São Paulo, Brazil.
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Gimeno I, Salvetti P, Carrocera S, Gatien J, Le Bourhis D, Gómez E. The recipient metabolome explains the asymmetric ovarian impact on fetal sex development after embryo transfer in cattle. J Anim Sci 2024; 102:skae081. [PMID: 38567815 PMCID: PMC11005770 DOI: 10.1093/jas/skae081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/02/2024] [Indexed: 04/11/2024] Open
Abstract
In cattle, lateral asymmetry affects ovarian function and embryonic sex, but the underlying molecular mechanisms remain unknown. The plasma metabolome of recipients serves to predict pregnancy after embryo transfer (ET). Thus, the aim of this study was to investigate whether the plasma metabolome exhibits distinct lateral patterns according to the sex of the fetus carried by the recipient and the active ovary side (AOS), i.e., the right ovary (RO) or the left ovary (LO). We analyzed the plasma of synchronized recipients by 1H+NMR on day 0 (estrus, n = 366) and day 7 (hours prior to ET; n = 367). Thereafter, a subset of samples from recipients that calved female (n = 50) or male (n = 69) was used to test the effects of embryonic sex and laterality on pregnancy establishment. Within the RO, the sex ratio of pregnancies carried was biased toward males. Significant differences (P < 0.05) in metabolite levels were evaluated based on the day of blood sample collection (days 0, 7 and day 7/day 0 ratio) using mixed generalized models for metabolite concentration. The most striking differences in metabolite concentrations were associated with the RO, both obtained by multivariate (OPLS-DA) and univariate (mixed generalized) analyses, mainly with metabolites measured on day 0. The metabolites consistently identified through the OPLS-DA with a higher variable importance in projection score, which allowed for discrimination between male fetus- and female fetus-carrying recipients, were hippuric acid, l-phenylalanine, and propionic acid. The concentrations of hydroxyisobutyric acid, propionic acid, l-lysine, methylhistidine, and hippuric acid were lowest when male fetuses were carried, in particular when the RO acted as AOS. No pathways were significantly regulated according to the AOS. In contrast, six pathways were found enriched for calf sex in the day 0 dataset, three for day 7, and nine for day 7/day 0 ratio. However, when the AOS was the right, 20 pathways were regulated on day 0, 8 on day 7, and 13 within the day 7/day 0 ratio, most of which were related to amino acid metabolism, with phenylalanine, tyrosine, and tryptophan biosynthesis and phenylalanine metabolism pathways being identified throughout. Our study shows that certain metabolites in the recipient plasma are influenced by the AOS and can predict the likelihood of carrying male or female embryos to term, suggesting that maternal metabolism prior to or at the time of ET could favor the implantation and/or development of either male or female embryos.
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Affiliation(s)
- Isabel Gimeno
- Animal Genetics and Reproduction, Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Centro de Biotecnología Animal, Camino de Rioseco 1225, 33394 Gijón, Spain
| | - Pascal Salvetti
- ELIANCE, Experimental facilities, Le Perroi, 37380 Nouzilly, France
| | - Susana Carrocera
- Animal Genetics and Reproduction, Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Centro de Biotecnología Animal, Camino de Rioseco 1225, 33394 Gijón, Spain
| | - Julie Gatien
- ELIANCE, Experimental facilities, Le Perroi, 37380 Nouzilly, France
| | | | - Enrique Gómez
- Animal Genetics and Reproduction, Servicio Regional de Investigación y Desarrollo Agroalimentario (SERIDA), Centro de Biotecnología Animal, Camino de Rioseco 1225, 33394 Gijón, Spain
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Schalich KM, Koganti PP, Castillo JM, Reiff OM, Cheong SH, Selvaraj V. The uterine secretory cycle: recurring physiology of endometrial outputs that setup the uterine luminal microenvironment. Physiol Genomics 2024; 56:74-97. [PMID: 37694291 DOI: 10.1152/physiolgenomics.00035.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 09/08/2023] [Accepted: 09/08/2023] [Indexed: 09/12/2023] Open
Abstract
Conserved in female reproduction across all mammalian species is the estrous cycle and its regulation by the hypothalamic-pituitary-gonadal (HPG) axis, a collective of intersected hormonal events that are crucial for ensuring uterine fertility. Nonetheless, knowledge of the direct mediators that synchronously shape the uterine microenvironment for successive yet distinct events, such as the transit of sperm and support for progressive stages of preimplantation embryo development, remain principally deficient. Toward understanding the timed endometrial outputs that permit luminal events as directed by the estrous cycle, we used Bovidae as a model system to uniquely surface sample and study temporal shifts to in vivo endometrial transcripts that encode for proteins destined to be secreted. The results revealed the full quantitative profile of endometrial components that shape the uterine luminal microenvironment at distinct phases of the estrous cycle (estrus, metestrus, diestrus, and proestrus). In interpreting this comprehensive log of stage-specific endometrial secretions, we define the "uterine secretory cycle" and extract a predictive understanding of recurring physiological actions regulated within the uterine lumen in anticipation of sperm and preimplantation embryonic stages. This repetitive microenvironmental preparedness to sequentially provide operative support was a stable intrinsic framework, with only limited responses to sperm or embryos if encountered in the lumen within the cyclic time period. In uncovering the secretory cycle and unraveling realistic biological processes, we present novel foundational knowledge of terminal effectors controlled by the HPG axis to direct a recurring sequence of vital functions within the uterine lumen.NEW & NOTEWORTHY This study unravels the recurring sequence of changes within the uterus that supports vital functions (sperm transit and development of preimplantation embryonic stages) during the reproductive cycle in female Ruminantia. These data present new systems knowledge in uterine reproductive physiology crucial for setting up in vitro biomimicry and artificial environments for assisted reproduction technologies for a range of mammalian species.
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Affiliation(s)
- Kasey M Schalich
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, United States
| | - Prasanthi P Koganti
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, United States
| | - Juan M Castillo
- Department of Clinical Sciences, Veterinary College, Cornell University, Ithaca, New York, United States
| | - Olivia M Reiff
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, United States
| | - Soon Hon Cheong
- Department of Clinical Sciences, Veterinary College, Cornell University, Ithaca, New York, United States
| | - Vimal Selvaraj
- Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, United States
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Wang GL, Yuan HJ, Kong QQ, Zhang J, Han X, Gong S, Xu MT, He N, Luo MJ, Tan JH. High glucose exposure of preimplantation embryos causes glucose intolerance and insulin resistance in F1 and F2 male offspring. Biochim Biophys Acta Mol Basis Dis 2024; 1870:166921. [PMID: 37879502 DOI: 10.1016/j.bbadis.2023.166921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/10/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND Although studies suggest that maternal high glucose (HG) increases offspring susceptibility to type 2 diabetes mellitus (T2DM), the underlying mechanisms are largely unclear. We studied whether glucose levels in oviducts are elevated when pregestational diabetic females get pregnant and whether the oviductal HG (OVHG) would act directly on embryos to increase offspring's T2DM susceptibility. METHODS We established an in vivo model of OVHG by injecting female mice with streptozotocin (STZ) during the preimplantation period and an in vitro model of embryo culture with HG (ECHG) by culturing preimplantation embryos with HG, before examining glucose tolerance and insulin resistance (IR) in F1 and F2 offspring. FINDINGS Injection of female mice with STZ induced a lasting significant glucose elevation in blood and oviduct fluid during the preimplantation period. The glucose tolerance test showed that both the STZ-induced OVHG and the ECHG caused glucose intolerance in F1 male and F1-sired F2 male offspring but had no effect on female offspring. Insulin tolerance test and the analysis for IR-related gene expression and glycogen contents in liver and muscle revealed significant IR in these male offspring. INTERPRETATION This study provided evidence that HG can act directly on preimplantation embryos to increase offspring's T2DM susceptibility suggesting that the preimplantation period is a critical stage for transmission of mother's diabetes to offspring. FUND: This study was supported by grants from the China National Natural Science Foundation (Nos. 31772599, 32072738, 31702114, and 31902160), and the Natural Science Foundation of Shandong Province (Nos. ZR2022MC036, ZR2017BC025 and ZR2020QC102).
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Affiliation(s)
- Guo-Liang Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Hong-Jie Yuan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Qiao-Qiao Kong
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Jie Zhang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Xiao Han
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Shuai Gong
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Ming-Tao Xu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Nan He
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Ming-Jiu Luo
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China
| | - Jing-He Tan
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an City 271018, PR China.
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Zander-Fox DL, Pacella-Ince L, Morgan DK, Green MP. Mammalian embryo culture media: now and into the future. Reprod Fertil Dev 2023; 36:66-80. [PMID: 38064187 DOI: 10.1071/rd23168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
For over 70years, since the culture of the first mammalian embryo in vitro , scientists have undertaken studies to devise and optimise media to support the manipulation and culture of gametes and embryos. This area of research became especially active in the late 1970s onwards following the successful birth of the first human in vitro fertilised embryo. This review summarises some of the key advances in mammalian embryo culture media over time based on a greater understanding of the biochemical milieu of the reproductive tract. It highlights how learnings from studies in mice and agricultural species have informed human culture media compositions, in particular the inclusion of albumin, growth factors, cytokines, and antioxidants into contemporary culture media formulations, and how these advances may then in turn help to inform and guide development of in vitro culture systems used in other arenas, in particular agriculture. Additionally, it will highlight how the introduction of new technologies, such as timelapse, can influence current trends in media composition and usage that may see a return to a single step medium.
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Affiliation(s)
- Deirdre L Zander-Fox
- Monash IVF Group, Melbourne, Vic., Australia; and Biomedicine Discovery Institute, Monash University, Melbourne, Vic., Australia; and School of Biomedicine, University of Adelaide, Adelaide, SA, Australia
| | - Leanne Pacella-Ince
- School of Biomedicine, University of Adelaide, Adelaide, SA, Australia; and Repromed, Adelaide, SA, Australia
| | | | - Mark P Green
- Monash IVF Group, Melbourne, Vic., Australia; and School of BioSciences, University of Melbourne, Melbourne, Vic., Australia
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Besenfelder U, Havlicek V. The interaction between the environment and embryo development in assisted reproduction. Anim Reprod 2023; 20:e20230034. [PMID: 37700910 PMCID: PMC10494886 DOI: 10.1590/1984-3143-ar2023-0034] [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: 03/08/2023] [Accepted: 06/28/2023] [Indexed: 09/14/2023] Open
Abstract
It can be assumed that the natural processes of selection and developmental condition in the animal provide the best prerequisites for embryogenesis resulting in pregnancy and subsequent birth of a healthy neonate. In contrast, circumventing the natural selection mechanisms and all developmental conditions in a healthy animal harbors the risk of counteracting, preventing or reducing the formation of embryos or substantially restricting their genesis. Considering these facts, it seems to be obvious that assisted reproductive techniques focusing on early embryonic stages serve an expanded and unselected germ cell pool of oocytes and sperm cells, and include the culture of embryos outside their natural habitat during and after fertilization for manipulation and diagnostic purposes, and for storage. A significant influence on the early embryonic development is seen in the extracorporeal culture of bovine embryos (in vitro) or stress on the animal organism (in vivo). The in vitro production per se and metabolic as well as endocrine changes in the natural environment of embryos represent adequate models and serve for a better understanding. The purpose of this review is to give a brief presentation of recent techniques aimed at focusing more on the complex processes in the Fallopian tube to contrast in vivo and in vitro prerequisites and abnormalities in early embryonic development and serve to identify potential new ways to make the use of ARTs more feasible.
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Affiliation(s)
- Urban Besenfelder
- Department of Biomedical Sciences, Institute of Animal Breeding and Genetics, Vienna, Austria
| | - Vitezslav Havlicek
- Department of Biomedical Sciences, Institute of Animal Breeding and Genetics, Vienna, Austria
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Mateo-Otero Y, Madrid-Gambin F, Llavanera M, Gomez-Gomez A, Haro N, Pozo OJ, Yeste M. Sperm physiology and in vitro fertilising ability rely on basal metabolic activity: insights from the pig model. Commun Biol 2023; 6:344. [PMID: 36997604 PMCID: PMC10063579 DOI: 10.1038/s42003-023-04715-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 03/15/2023] [Indexed: 04/01/2023] Open
Abstract
Whether basal metabolic activity in sperm has any influence on their fertilising capacity has not been explored. Using the pig as a model, the present study investigated the relationship of energetic metabolism with sperm quality and function (assessed through computer-assisted sperm analysis and flow cytometry), and fertility (in vitro fertilisation (IVF) outcomes). In semen samples from 16 boars, levels of metabolites related to glycolysis, ketogenesis and Krebs cycle were determined through a targeted metabolomics approach using liquid chromatography-tandem mass spectrometry. High-quality sperm are associated to greater levels of glycolysis-derived metabolites, and oocyte fertilisation and embryo development are conditioned by the sperm metabolic status. Interestingly, glycolysis appears to be the preferred catabolic pathway of the sperm giving rise to greater percentages of embryos at day 6. In conclusion, this study shows that the basal metabolic activity of sperm influences their function, even beyond fertilisation.
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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, ES-17003, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain
| | - Francisco Madrid-Gambin
- Applied Metabolomics Research Group, Hospital del Mar Medical Research Institute (IMIM), ES-08003, Barcelona, Spain
| | - Marc Llavanera
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain
| | - Alex Gomez-Gomez
- Applied Metabolomics Research Group, Hospital del Mar Medical Research Institute (IMIM), ES-08003, Barcelona, Spain
| | - Noemí Haro
- Applied Metabolomics Research Group, Hospital del Mar Medical Research Institute (IMIM), ES-08003, Barcelona, Spain
| | - Oscar J Pozo
- Applied Metabolomics Research Group, Hospital del Mar Medical Research Institute (IMIM), ES-08003, Barcelona, Spain.
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Institute of Food and Agricultural Technology, University of Girona, ES-17003, Girona, Spain.
- Unit of Cell Biology, Department of Biology, Faculty of Sciences, University of Girona, ES-17003, Girona, Spain.
- Catalan Institution for Research and Advanced Studies (ICREA), ES-08010, Barcelona, Spain.
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Mahé C, Marcelo P, Tsikis G, Tomas D, Labas V, Saint-Dizier M. The bovine uterine fluid proteome is more impacted by the stage of the estrous cycle than the proximity of the ovulating ovary in the periconception period. Theriogenology 2023; 198:332-343. [PMID: 36640738 DOI: 10.1016/j.theriogenology.2023.01.006] [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: 11/23/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
Uterine secretions provide a suitable environment for sperm selective migration during a couple of days preceding ovulation and for early embryo development before implantation. Our goal was to identify and quantify proteins in the bovine uterine fluid during the periovulatory period of the estrous cycle. Genital tracts with normal morphology were collected from adult cyclic Bos taurus females in a local slaughterhouse and classified into pre-ovulatory or post-ovulatory stages of cycle (around days 19-21 and 0-5 of cycle, respectively; n = 8 cows per stage) based on ovarian morphology. Proteins from uterine fluid collected from the utero-tubal junction to the base of each horn (four pools of two cows per condition) were analyzed by nanoLiquid Chromatography coupled with tandem Mass Spectrometry (nanoLC-MS/MS). A total of 1214 proteins were identified, of which 91% were shared between all conditions. Overall, 57% of proteins were predicted to be secreted and 17% were previously reported in uterine extracellular vesicles. Paired comparisons between uterine horns ipsilateral and contralateral to ovulation evidenced 12 differentially abundant proteins, including five at pre-ovulatory stage. Furthermore, 35 proteins differed in abundance between pre- and post-ovulatory stages, including 21 in the ipsilateral side of ovulation. Functional analysis of identified proteins demonstrated roles in binding, metabolism, cellular detoxification and the immune response. This study provides a valuable database of uterine proteins for functional studies on sperm physiology and early embryo development.
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Affiliation(s)
- Coline Mahé
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380, Nouzilly, France.
| | - Paulo Marcelo
- Plateforme d'Ingénierie Cellulaire & Analyses des Protéines ICAP, FR CNRS 3085 ICP, Université de Picardie Jules Verne, Amiens, France
| | - Guillaume Tsikis
- CNRS, IFCE, INRAE, Université de Tours, PRC, 37380, Nouzilly, France
| | - Daniel Tomas
- INRAE, Université de Tours, CHU de Tours, Plateforme de Phénotypage par Imagerie in/eX vivo de l'ANImal à la Molécule (PIXANIM), 37380, Nouzilly, France
| | - Valérie Labas
- INRAE, Université de Tours, CHU de Tours, Plateforme de Phénotypage par Imagerie in/eX vivo de l'ANImal à la Molécule (PIXANIM), 37380, Nouzilly, France
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Hidalgo AI, Ulloa-Leal C, Gajardo G, López G, Carretta D, Burgos RA, Ratto M. Ovulation Induced by Intrauterine Seminal Plasma Increases Total Protein, PGE2, IL-8, and IL-1β in Uterine Fluid of Llamas ( Lama glama). Animals (Basel) 2023; 13:ani13040554. [PMID: 36830341 PMCID: PMC9951705 DOI: 10.3390/ani13040554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 01/28/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
The establishment of a state of immunotolerance in the female reproductive tract is important for embryo development, implantation and placentation. Llamas are induced ovulators and more than 98% of pregnancies occur in the left uterine horn. The objective of this study was to determine the uterine immune response of llamas in different stages of the reproductive cycle. Adult llamas (n = 20) were examined daily by transrectal ultrasonography to determine follicular growth and then randomly assigned to four groups: Follicular phase (n = 5); Luteal phase induced by an intramuscular administration of 50 ug of GnRH analogue (n = 5); Luteal phase induced by intrauterine infusion of seminal plasma (n = 5); and Luteal phase induced by mating (n = 5). Uterine fluid was collected separately from both uterine horns by non-surgical flushing to determine the presence of cells, total proteins and concentration of IL-1β, IL-6, IL-8, IFN γ, TNF-α and PGE2. Inflammatory cells were not observed in the uterine fluid and total protein pattern and inflammatory mediators did not differ between the left and the right horn amongst groups. Llamas treated with an intrauterine infusion of seminal plasma showed the highest concentration of total proteins, inflammatory cytokines PGE2, IL-8 and IL-1β in the uterine fluid. In conclusion, seminal plasma is made up of significant numbers of signaling molecules that are able to modify the uterine immune response in llamas.
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Affiliation(s)
- Alejandra Isabel Hidalgo
- Laboratory of Animal Reproduction, Faculty of Veterinary Sciences, Institute of Animal Science, Universidad Austral de Chile, Valdivia 5090000, Chile
- Correspondence:
| | - Cesar Ulloa-Leal
- Laboratory of Animal Reproduction, Faculty of Veterinary Sciences, Institute of Animal Science, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Gonzalo Gajardo
- Laboratory of Animal Reproduction, Faculty of Veterinary Sciences, Institute of Animal Science, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Gerardo López
- Laboratory of Animal Reproduction, Faculty of Veterinary Sciences, Institute of Animal Science, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Daniella Carretta
- Laboratory of Inflammation Pharmacology, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Rafael Agustín Burgos
- Laboratory of Inflammation Pharmacology, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile
- Laboratory of Immunometabolism, Faculty of Veterinary Sciences, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Marcelo Ratto
- Laboratory of Animal Reproduction, Faculty of Veterinary Sciences, Institute of Animal Science, Universidad Austral de Chile, Valdivia 5090000, Chile
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de Oliveira Fernandes G, de Lima CB, Fidelis AAG, Milazzotto MP, Dode MAN. Metabolic signature of spent culture media shows lipid metabolism as a determinant of pregnancy outcomes. Reprod Domest Anim 2023; 58:117-128. [PMID: 36156318 DOI: 10.1111/rda.14271] [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: 05/17/2022] [Revised: 09/11/2022] [Accepted: 09/23/2022] [Indexed: 01/07/2023]
Abstract
In the present study, we investigated the spent culture media of in vitro produced (IVP) bovine embryos which did (group Pregnant) or did not (group Non-pregnant) establish pregnancy after transfer. For that purpose, IVP embryos on D5 were transferred to individual droplets for the last 48 h of culture. Embryos at the blastocyst stage were then transferred to synchronized recipients, while respective culture media drops were collected and evaluated individually. The list of metabolites present in spent culture media was obtained by electrospray ionization mass spectrometry (ESI-MS) and analysed with Metaboanalyst® to characterize the metabolic profile of each group. The spectrometric analysis showed that pathways related to lipid metabolism, particularly fatty acids degradation via beta-oxidation, were more present in the Pregnant group whereas no significant pathway was identified in the group Non-pregnant. By using this method, we were able to identify a metabolic signature in culture media that allows for a better comprehension of preferential metabolic routes taken by the most viable embryos. These findings offer great insights into the biochemistry of embryo development and reveal a potential target for the development of better-quality IVP systems, as well as tools to identify bovine embryos with greater chances to establish and maintain pregnancy.
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Affiliation(s)
| | - Camila Bruna de Lima
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Québec, Canada.,Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, Brazil
| | | | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, Brazil
| | - Margot Alves Nunes Dode
- School of Agriculture and Veterinary Medicine, University of Brasilia, Brasília, Brazil.,Embrapa Genetic Resources and Biotechnology, Laboratory of Animal Reproduction, Brasília, Brazil
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Banliat C, Mahé C, Lavigne R, Com E, Pineau C, Labas V, Guyonnet B, Mermillod P, Saint-Dizier M. The proteomic analysis of bovine embryos developed in vivo or in vitro reveals the contribution of the maternal environment to early embryo. BMC Genomics 2022; 23:839. [PMID: 36536309 PMCID: PMC9764490 DOI: 10.1186/s12864-022-09076-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Despite many improvements with in vitro culture systems, the quality and developmental ability of mammalian embryos produced in vitro are still lower than their in vivo counterparts. Though previous studies have evidenced differences in gene expression between in vivo- and in vitro-derived bovine embryos, there is no comparison at the protein expression level. RESULTS A total of 38 pools of grade-1 quality bovine embryos at the 4-6 cell, 8-12 cell, morula, compact morula, and blastocyst stages developed either in vivo or in vitro were analyzed by nano-liquid chromatography coupled with label-free quantitative mass spectrometry, allowing for the identification of 3,028 proteins. Multivariate analysis of quantified proteins showed a clear separation of embryo pools according to their in vivo or in vitro origin at all stages. Three clusters of differentially abundant proteins (DAPs) were evidenced according to embryo origin, including 463 proteins more abundant in vivo than in vitro across development and 314 and 222 proteins more abundant in vitro than in vivo before and after the morula stage, respectively. The functional analysis of proteins found more abundant in vivo showed an enrichment in carbohydrate metabolism and cytoplasmic cellular components. Proteins found more abundant in vitro before the morula stage were mostly localized in mitochondrial matrix and involved in ATP-dependent activity, while those overabundant after the morula stage were mostly localized in the ribonucleoprotein complex and involved in protein synthesis. Oviductin and other oviductal proteins, previously shown to interact with early embryos, were among the most overabundant proteins after in vivo development. CONCLUSIONS The maternal environment led to higher degradation of mitochondrial proteins at early developmental stages, lower abundance of proteins involved in protein synthesis at the time of embryonic genome activation, and a global upregulation of carbohydrate metabolic pathways compared to in vitro production. Furthermore, embryos developed in vivo internalized large amounts of oviductin and other proteins probably originated in the oviduct as soon as the 4-6 cell stage. These data provide new insight into the molecular contribution of the mother to the developmental ability of early embryos and will help design better in vitro culture systems.
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Affiliation(s)
- Charles Banliat
- grid.12366.300000 0001 2182 6141INRAE, CNRS, Tours University, IFCE, UMR PRC, Nouzilly, France ,Union Evolution, Rue Eric Tabarly, Noyal-Sur-Vilaine, France
| | - Coline Mahé
- grid.12366.300000 0001 2182 6141INRAE, CNRS, Tours University, IFCE, UMR PRC, Nouzilly, France
| | - Régis Lavigne
- grid.410368.80000 0001 2191 9284Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, Rennes, France ,grid.410368.80000 0001 2191 9284Univ Rennes, CNRS, Inserm, Biosit UAR 3480 US_S 018, Protim Core Facility, Rennes, France
| | - Emmanuelle Com
- grid.410368.80000 0001 2191 9284Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, Rennes, France ,grid.410368.80000 0001 2191 9284Univ Rennes, CNRS, Inserm, Biosit UAR 3480 US_S 018, Protim Core Facility, Rennes, France
| | - Charles Pineau
- grid.410368.80000 0001 2191 9284Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail), UMR_S 1085, Rennes, France ,grid.410368.80000 0001 2191 9284Univ Rennes, CNRS, Inserm, Biosit UAR 3480 US_S 018, Protim Core Facility, Rennes, France
| | - Valérie Labas
- grid.12366.300000 0001 2182 6141INRAE, CNRS, Tours University, IFCE, UMR PRC, Nouzilly, France ,Pixanim, INRAE, Tours University, CHU of Tours, Nouzilly, France
| | - Benoit Guyonnet
- Union Evolution, Rue Eric Tabarly, Noyal-Sur-Vilaine, France
| | - Pascal Mermillod
- grid.12366.300000 0001 2182 6141INRAE, CNRS, Tours University, IFCE, UMR PRC, Nouzilly, France
| | - Marie Saint-Dizier
- grid.12366.300000 0001 2182 6141INRAE, CNRS, Tours University, IFCE, UMR PRC, Nouzilly, France
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12
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Amaral A. Energy metabolism in mammalian sperm motility. WIREs Mech Dis 2022; 14:e1569. [DOI: 10.1002/wsbm.1569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/18/2022] [Accepted: 05/21/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Alexandra Amaral
- Department of Developmental Genetics Max Planck Institute for Molecular Genetics Berlin Germany
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13
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Gonzalez A, Berg MD, Southey B, Dean M. Effect of estradiol and IGF1 on glycogen synthesis in bovine uterine epithelial cells. Reproduction 2022; 164:97-108. [PMID: 35900330 DOI: 10.1530/rep-22-0040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 07/14/2022] [Indexed: 11/08/2022]
Abstract
In brief Glucose is an important nutrient for the endometrium and embryo during pregnancy. This study shows that estradiol (E2)/IGF1 signaling stimulates glycogen synthesis in the uterine epithelium of cows, which could provide glucose when needed. Abstract Glycogen storage in the uterine epithelium peaks near estrus and is a potential source of glucose for the endometrium and embryos. However, the hormonal regulation of glycogen synthesis in the uterine epithelium is poorly understood. Our objective was to evaluate the effect of E2 and insulin-like growth factor 1 (IGF1) on glycogenesis in immortalized bovine uterine epithelial (BUTE) cells. Treatment of BUTE cells with E2 (0.1-10 nM) did not increase glycogen levels. However, treatment of BUTE cells with IGF1 (50 or 100 ng/mL) resulted in a >2-fold increase in glycogen. To determine if the uterine stroma produced IGF1 in response to E2, bovine uterine fibroblasts were treated with E2, which increased IGF1 levels. Immunohistochemistry showed higher levels of IGF1 in the stroma on day 1 than on day 11, which coincides with higher glycogen levels in the uterine epithelium. Western blots revealed that IGF1 treatment increased the levels of phospho-AKT, phospho-GSKβ, hexokinase 1, and glycogen synthase in BUTE cells. Metabolomic (GC-MS) analysis showed that IGF1 increased 3-phosphoglycerate and lactate, potentially indicative of increased flux through glycolysis. We also found higher levels of N-acetyl-glucosamine and protein glycosylation after IGF1 treatment, indicating increased hexosamine biosynthetic pathway activity. In conclusion, IGF1 is produced by uterine fibroblasts due to E2, and IGF1 increases glucose metabolism and glycogenesis in uterine epithelial cells. Glycogen stored in the uterine epithelium due to E2/IGF1 signaling at estrus could provide glucose to the endometrium or be secreted into the uterine lumen as a component of histotroph.
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Affiliation(s)
- Alexis Gonzalez
- 1Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Malia D Berg
- 1Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Bruce Southey
- 1Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Matthew Dean
- 1Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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14
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Lopera-Vásquez R, Uribe-García F, Rondón-Barragán I. Effect of estrous cycle phases on gene expression in bovine oviduct epithelial cells. Vet World 2022; 15:1665-1675. [PMID: 36185535 PMCID: PMC9394134 DOI: 10.14202/vetworld.2022.1665-1675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
Background and Aim: The oviduct environment is of particular importance because it is the site of fertilization and early embryo development. The oviduct, as a component of the reproductive system, responds to ovarian hormone (estradiol [E2] and progesterone [P4]) stimuli depending on the estrous cycle phase. This study aimed to elucidate the effect of estrous cycle phases (follicular and early and late luteal phases) on gene expression patterns in bovine oviduct epithelial cells (BOECs).
Materials and Methods: Oviducts were obtained from healthy slaughterhouse animals, corresponding to ipsilateral ovaries with dominant follicles or corpus luteum during early and late luteal phases. BOECs were recovered from the isthmus (IST) and ampulla (AMP), and the expression patterns of genes related to cytokinesis and mitosis mechanisms (rho-associated coiled-coil containing protein kinase and cellular communication network factor 2 [CCN2]), growth factors (insulin-like growth factor-binding protein 3, epidermal growth factor receptor [EGFR], vascular endothelial growth factor A, and EGFR), antioxidant mechanisms (glutathione peroxidase 4 [GPX4]), apoptosis (B-cell lymphoma 2), complement component (C3), energy metabolism (aldose reductase gene family 1-member b1 [AKRIB1] and solute carrier family 2), hormone receptors (estrogen receptor 1 and luteinizing hormone/choriogonadotropin receptor), and specific glycoproteins (oviductal glycoprotein 1) were analyzed.
Results: High P4 levels (late luteal phase) affected the expression of important genes related to antioxidant mechanisms (GPX4), energy metabolism (AKRIB1), growth factors (IGBP3 and EGFR), and cell growth regulation (CCN2) in the AMP. Low P4 levels (early luteal phase) affected the expression of AKR1B1, IGBP3, and CCN2. In addition, estrogen likely had an effect on OVPGP expression in the cattle oviduct.
Conclusion: Differential gene expression patterns of BOECs in the AMP during the luteal phase (antioxidant mechanisms, energy metabolism, growth factors, and immunological regulators) and in the IST during the follicular phase (glycoproteins) may influence their renewal and population proportions, modulating the oviduct environment as well as gamete and embryo physiology.
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Affiliation(s)
- Ricaurte Lopera-Vásquez
- Impronta Research Group, Faculty of Veterinary Medicine and Zootechnics. Universidad Cooperativa de Colombia, Ibagué-Tolima, Colombia
| | - Fabián Uribe-García
- Research Group in Immunobiology and Pathogenesis, Laboratory of Immunology and Molecular Biology, Faculty of Veterinary Medicine and Zootechnics, Universidad del Tolima, Santa Helena Highs, Postal Code 730006299, Ibagué-Tolima, Colombia
| | - Iang Rondón-Barragán
- Research Group in Immunobiology and Pathogenesis, Laboratory of Immunology and Molecular Biology, Faculty of Veterinary Medicine and Zootechnics, Universidad del Tolima, Santa Helena Highs, Postal Code 730006299, Ibagué-Tolima, Colombia
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15
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Elsaadawy SA, Wu Z, Bu D. Feasibility of Supplying Ruminally Protected Lysine and Methionine to Periparturient Dairy Cows on the Efficiency of Subsequent Lactation. Front Vet Sci 2022; 9:892709. [PMID: 35774986 PMCID: PMC9237544 DOI: 10.3389/fvets.2022.892709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
The objective of this study was to evaluate the effects of supplying ruminally protected Lys (RPL) and ruminally protected Met (RPM) to transition cows' diets on the efficiency of subsequent lactation. A total of 120 prepartum Holstein cows were assigned into four treatments blocked by the anticipated calving date, previous lactation milk yield, number of lactations, and body condition score and fed either RPL, RPM, or the combination (RPML) or control diet (CON) throughout the transition period (3 weeks before till 3 weeks after calving). From 22 to 150 days in milk (DIM), all animals (100 cows) were fed a combination of RPM and RPL (0.17% RPM and 0.41% RPL of DM; n = 25 cows/treatment) as follows; CON–RPML, RPM–RPML, RPL–RPML, and RPML–RPML. Milk production and dry matter intake (DMI) were measured daily; milk and blood samples were taken at 21, 30, 60, 90, 120, and 150 DIM. Supplemented amino acids (AA) were mixed with the premix and added to the total mixed ration during the experiment. DMI (p < 0.001) and energy-corrected milk (ECM, p = 0.04) were higher for cows that were fed RPML–RPML than other cows. Compared with CON–RPML, yields of milk total protein, lactose, and nitrogen efficiency were increased (p < 0.01), whereas milk urea nitrogen (MUN; p = 0.002) was decreased for other treatments. However, supplemental AA did not affect milk lactose percentage, fat yield, feed efficiency, or serum total protein concentration (p > 0.10). Transition cows that consumed AA had a greater peak of milk yield (p < 0.01), as well as quickly reached the peak of milk (p < 0.004). There were differences in β-hydroxybutyrate concentration during the early lactation, with a lower level for AA groups (p < 0.05), and the difference faded with the progression of lactation (p > 0.10). Fertility efficiency as measured by pregnancy rate was improved by supplemental AA during the perinatal period (p < 0.05). In conclusion, transition cows consumed RPM and RPL, increased post-calving DMI, milk production, milk protein yield, nitrogen efficiency, and improved fertility performance.
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Affiliation(s)
- Samy A. Elsaadawy
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhaohai Wu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dengpan Bu
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Joint Laboratory on Integrated Crop-Tree-Livestock Systems of the Chinese Academy of Agricultural Sciences (CAAS), Ethiopian Institute of Agricultural Research (EIAR) and World Agroforestry Centre (ICRAF), Beijing, China
- Hunan Co-Innovation Center of Safety Animal Production, Changsha, China
- *Correspondence: Dengpan Bu
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16
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Snider AP, Crouse MS, Rosasco SL, Epperson KM, Northrop-Albrecht EJ, Rich JJ, Chase CC, Miles JR, Perry GA, Summers AF, Cushman RA. Greater numbers of antral follicles in the ovary are associated with increased concentrations of glucose in uterine luminal fluid of beef heifers. Anim Reprod Sci 2022; 239:106968. [DOI: 10.1016/j.anireprosci.2022.106968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 11/01/2022]
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17
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Drews B, Milojevic V, Robles M, Wimel L, Dubois C, Vegas AR, Giller K, Chavatte-Palmer P, Daniel H, Giesbertz P, Bruckmaier R, Ulbrich SE. Moderate differences in plasma leptin in mares have no effect on either the amino acid or the fatty acid composition of the uterine fluid. J Equine Vet Sci 2021; 109:103827. [PMID: 34843890 DOI: 10.1016/j.jevs.2021.103827] [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: 06/07/2021] [Revised: 10/18/2021] [Accepted: 11/22/2021] [Indexed: 10/19/2022]
Abstract
Female mammalian reproductive functions are closely linked to body condition and metabolic status. Energy homeostasis is regulated by endocrine hormones such as insulin, IGF-I, leptin and adiponectin via the hypothalamic-pituitary-adrenal axis. These metabolic hormones and their receptors are also expressed in reproductive tissues and the embryo. We investigated the relationship between circulating leptin and the fatty acid (FA) and amino acid (AA) composition of the equine uterine fluid (UF) and peripheral blood plasma (BP) by using a mass spectrometry-based approach. UF and BP were collected from ten broodmares on days 6 and 7 post ovulation, respectively. The mares were retrospectively assigned to two groups according to their BP leptin concentrations (high leptin (> 1.6 ng/ml) versus low leptin (<0.8 ng/ml)). Specific AA and FA compositions for BP and UF were found with different levels of respective metabolite abundances. The main FAs in BP were stearic, palmitic and linoleic acid. In UF, the three most abundant FAs were eicosapentaenoic, arachidonic and stearic acid. The AA profile of BP was dominated by glycine, glutamine, serine and alanine, which were likewise among the highly abundant AAs in UF. In UF, glutamic acid had by far the highest concentration. Therefore, BP leptin concentration within a physiological range do not seem to affect the specific FA nor the AA composition of the UF. The composition of the UF may therefore be mediated by local rather than by peripheral metabolic hormones.
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Affiliation(s)
- Barbara Drews
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, Zurich, Switzerland.
| | - Vladimir Milojevic
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, Zurich, Switzerland
| | - Morgane Robles
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700, Maisons-Alfort, France
| | - L Wimel
- IFCE, Station expérimentale de la Valade, 19370 Chamberet, France.
| | - C Dubois
- IFCE, Station expérimentale de la Valade, 19370 Chamberet, France.
| | - A Rudolf Vegas
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, Zurich, Switzerland
| | - K Giller
- ETH Zurich, Animal Nutrition, Institute of Agricultural Sciences, Zurich, Switzerland.
| | - P Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - H Daniel
- Nutritional Physiology, Technische Universität München, Freising, Germany
| | - P Giesbertz
- Nutritional Physiology, Technische Universität München, Freising, Germany.
| | - Rupert Bruckmaier
- Veterinary Physiology, Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty Bern, University of Bern, Switzerland.
| | - S E Ulbrich
- ETH Zurich, Animal Physiology, Institute of Agricultural Sciences, Zurich, Switzerland.
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18
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Hamdi M, Cañon-Beltrán K, Mazzarella R, Cajas YN, Leal CLV, Gutierrez-Adan A, González EM, Da Silveira JC, Rizos D. Characterization and profiling analysis of bovine oviduct and uterine extracellular vesicles and their miRNA cargo through the estrous cycle. FASEB J 2021; 35:e22000. [PMID: 34731497 DOI: 10.1096/fj.202101023r] [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: 06/23/2021] [Revised: 09/19/2021] [Accepted: 10/05/2021] [Indexed: 12/25/2022]
Abstract
Extracellular vesicles (EVs) found in various biological fluids and particularly in reproductive fluids, have gained considerable attention for their possible role in cell- to- cell communication. Among, the different bioactive molecules cargos of EVs, MicroRNAs (miRNAs) are emerging as promising diagnostic biomarkers with high clinical potential. Aiming to understand the roles of EVs in bovine reproductive tract, we intended to characterize and profile the EVs of oviduct and uterine fluids (OF-EVs, UF-EVs) and their miRNA across the estrous cycle. Nanoparticle tracking analysis and transmission electron microscopy confirmed the existence of small EV population in OF and UF at all stages, (size between 30 and 200 nm; concentration: 3.4 × 1010 EVs/ml and 6.0 × 1010 EVs/ml for OF and UF, respectively, regardless of stage). The identification of EV markers (CD9, HSP70, and ALIX proteins) was confirmed by western blot. The miRNA analysis revealed the abundance of 310 and 351 miRNAs in OF-EVs and UF-EVs, respectively. Nine miRNAs were differentially abundant in OF-EVs between stages of the cycle, eight of them displayed a progressive increase from S1 to S4 (p < .05). In UF-EVs, a total of 14 miRNAs were differentially abundant between stages. Greater differences were observed between stage 1 (S1) and stage 3 (S3), with 11 miRNAs enriched in S3 compared to S1. Functional enrichment analysis revealed the involvement of these miRNAs in relevant pathways such as cell signaling, intercellular junctions, and reproductive functions that may be implicated in oviduct and uterus modulation across the cycle, but also in their preparation for embryo/conceptus presence and development.
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Affiliation(s)
- Meriem Hamdi
- Department of Animal Reproduction, INIA-CSIC, Madrid, Spain.,Genetics and Functional Genomics, Clinic of Reproductive Medicine, Department for Farm Animals, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Karina Cañon-Beltrán
- Department of Animal Reproduction, INIA-CSIC, Madrid, Spain.,Facultad de Ciencias Agrarias y Ambientales, Programa de Medicina Veterinaria, Fundación Universitaria Juan de Castellanos, Tunja, Colombia
| | - Rosane Mazzarella
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Yulia N Cajas
- Department of Animal Reproduction, INIA-CSIC, Madrid, Spain.,Laboratorio de Biotecnología de la Reproducción Animal, Facultad de Ciencias Agropecuarias, Universidad de Cuenca (UC), Cuenca, Ecuador
| | - Claudia L V Leal
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | | | - Encina M González
- Department of Anatomy and Embryology, Veterinary Faculty, Complutense University of Madrid (UCM), Madrid, Spain
| | - Juliano C Da Silveira
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
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19
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Leese HJ, McKeegan PJ, Sturmey RG. Amino Acids and the Early Mammalian Embryo: Origin, Fate, Function and Life-Long Legacy. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9874. [PMID: 34574797 PMCID: PMC8467587 DOI: 10.3390/ijerph18189874] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 12/11/2022]
Abstract
Amino acids are now recognised as having multiple cellular functions in addition to their traditional role as constituents of proteins. This is well-illustrated in the early mammalian embryo where amino acids are now known to be involved in intermediary metabolism, as energy substrates, in signal transduction, osmoregulation and as intermediaries in numerous pathways which involve nitrogen metabolism, e.g., the biosynthesis of purines, pyrimidines, creatine and glutathione. The amino acid derivative S-adenosylmethionine has emerged as a universal methylating agent with a fundamental role in epigenetic regulation. Amino acids are now added routinely to preimplantation embryo culture media. This review examines the routes by which amino acids are supplied to the early embryo, focusing on the role of the oviduct epithelium, followed by an outline of their general fate and function within the embryo. Functions specific to individual amino acids are then considered. The importance of amino acids during the preimplantation period for maternal health and that of the conceptus long term, which has come from the developmental origins of health and disease concept of David Barker, is discussed and the review concludes by considering the potential utility of amino acid profiles as diagnostic of embryo health.
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Affiliation(s)
- Henry J. Leese
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull HU6 7RX, UK;
| | - Paul J. McKeegan
- Centre for Anatomical and Human Sciences, Hull York Medical School, University of Hull, Hull HU6 7RX, UK;
| | - Roger G. Sturmey
- Centre for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull HU6 7RX, UK;
- Division of Developmental Biology and Medicine, The University of Manchester, St Mary’s Hospital, Manchester M13 9WL, UK
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20
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Setiawan R, Priyadarshana C, Miyazaki H, Tajima A, Asano A. Functional difference of ATP-generating pathways in rooster sperm (Gallus gallus domesticus). Anim Reprod Sci 2021; 233:106843. [PMID: 34520995 DOI: 10.1016/j.anireprosci.2021.106843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 10/20/2022]
Abstract
Adenosine triphosphate (ATP) production via glycolysis and oxidative phosphorylation is essential for the maintenance of flagellar motility in sperm; however, the primary energy production pathways supporting fertilization vary among species. Inconsistency in thought exists regarding which pathways maintain ATP production and sperm motility in poultry. Glycolysis and mitochondrial oxidation contribute to flagellar motion in chicken sperm, but the relative dependence on these pathways for motility and penetrability into the inner perivitelline layer remains unclear. In the present study, there was use of various inhibitors and energy substrates to evaluate the relative contribution of anaerobic glycolysis and mitochondrial oxidation to chicken sperm flagellar motility, ATP production, and penetrating capacity through the perivitelline layer. Although both pathways contributed to these processes to varying extent, glucose was the primary substrate for sperm penetration into the inner perivitelline layer in chickens. Furthermore, results from metabolic stress analyses indicated that there was less perivitelline penetrability in response to pyruvate that was not due to changes in reactive oxygen species or intracellular pH. Overall, results from the present study indicate glycolysis and mitochondrial oxidation pathways have distinct functions in the flagellar motility and penetrability of the perivitelline membrane by rooster sperm. There, therefore, are new insights as a result of findings in the present study into the energy production system of sperm through which there is utilization of extracellular metabolic substrates for maintaining sperm fertilization capacity.
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Affiliation(s)
- Rangga Setiawan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Chathura Priyadarshana
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Hitoshi Miyazaki
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Atsushi Tajima
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Atsushi Asano
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
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21
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Sandoval K, Berg MD, Guadagnin AR, Cardoso FC, Dean M. Endometrial glycogen metabolism on days 1 and 11 of the reproductive cycle in dairy cows. Anim Reprod Sci 2021; 233:106827. [PMID: 34450335 DOI: 10.1016/j.anireprosci.2021.106827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 10/20/2022]
Abstract
Embryos need glucose or fructose to remain viable; however, it is not well understood how secretion of these carbohydrates is regulated. This study was conducted to evaluate endometrial glycogen and associated enzymes on Days 1 and 11 of the estrous cycle (Day 0 = behavioral estrus) in cattle. Diastase-liable periodic acid-Schiff (PAS) staining of luminal epithelia decreased 81 % between Days 1 and 11. Similarly, glycogen content of glandular epithelia was 66 % less on Day 11 than Day 1. There was dense PAS staining in the lumen of some glands, and this staining was removed when there was pretreatment with diastase. Based on western blot results, there was no difference in glycogen metabolizing enzymes between Days 1 and 11. Results from conducting immunohistochemistry procedures indicated hexokinase 1 was more abundant in the epithelial cells than stroma, but immunostaining was not different between Day 1 and 11. In contrast, phospho-glycogen synthase was undetectable on Day 1 but was present in glandular epithelia on Day 11. Glycogen synthase was localized to the epithelia, and was in larger abundance on Day 1. The abundance of glycogen phosphorylase was greater in the epithelium than stroma and on Day 11 than 1. Furthermore, glucose-6-phosphatase 3 was more abundant in the epithelium on both Days 1 and 11. In conclusion, in the uterus of cattle glycogen is stored in a reproductive cycle-dependent manner. Glucose released from endometrial glycogen stores could potentially be utilized by the endometrium or secreted into the uterine lumen.
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Affiliation(s)
- Kassandra Sandoval
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Malia D Berg
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Anne R Guadagnin
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Felipe C Cardoso
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States
| | - Matthew Dean
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, United States.
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22
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Santos ÉCD, Fonseca Junior AMD, Lima CBD, Ispada J, Silva JVAD, Milazzotto MP. Less is more: Reduced nutrient concentration during in vitro culture improves embryo production rates and morphophysiology of bovine embryos. Theriogenology 2021; 173:37-47. [PMID: 34329894 DOI: 10.1016/j.theriogenology.2021.07.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/12/2021] [Accepted: 07/17/2021] [Indexed: 10/20/2022]
Abstract
Reproducing the environment to which the embryo is naturally exposed may be an alternative to improve viability of embryos produced in vitro. In the first part of this work, we describe a novel culture media, namely Embryonic Culture Supplementation (ECS100). The composition of this media was based on the contents of carbohydrates and amino acids found in oviductal and uterine fluids. Because it was a new formulation, we investigated the performance of ECS100 in comparison with conventionally used SOFaa, and possible benefits to embryo development. Embryo production rates (cleavage, morula and blastocyst conversion, blastocyst and hatching rates) and morphophysiological parameters (total cell number, cell allocation, Mitochondrial membrane potential (MMP), Reactive Oxygen Species (ROS), NADH, FAD+ and ATP content) were similar between ECS100 and SOFaa. Next, we tested if a reduction of ECS100 concentration could positively contribute to embryo viability by resembling the more dynamic availability of nutrients that reach the embryos in vivo. Therefore, embryos were cultured in ECS100 or in its serial dilution (ECS75, 50 and 25). Despite the fact that the lowest concentration (ECS25) still supported blastocyst formation, halving the concentration of metabolites (ECS50) actually improved embryo production rates. Thus, embryos produced in ECS100 or ECS50 were submitted to further analyses on Days 4 and 7. Embryos cultured in ECS50 presented better developmental rates and morphophysiological profile than embryos cultured in ECS100. Additionally, physiological traits (MMP, ROS and NADH levels) of embryos cultured in ECS50 presented the expected pattern for embryos produced in vivo. In conclusion, we presented a novel, more personalized and effective culture media for bovine IVP embryos. And although the ECS media formulation was based on the contents of female reproductive fluids, it is worth mentioning that adaptations must be specifically directed for in vitro conditions rather than reproduced exactly from in vivo state.
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Affiliation(s)
- Érika Cristina Dos Santos
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - Aldcejam Martins da Fonseca Junior
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - Camila Bruna de Lima
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil; Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle (CRDSI), Département des Sciences Animales, Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Quebec, Canada.
| | - Jessica Ispada
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - João Vitor Alcantara da Silva
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil.
| | - Marcella Pecora Milazzotto
- Laboratory of Embryonic Metabolism and Epigenetic, Center of Natural and Human Science, Federal University of ABC, Santo Andre, SP, Brazil; Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil.
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23
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Long Y, Wang YC, Yuan DZ, Dai XH, Liao LC, Zhang XQ, Zhang LX, Ma YD, Lei Y, Cui ZH, Zhang JH, Nie L, Yue LM. GLUT4 in Mouse Endometrial Epithelium: Roles in Embryonic Development and Implantation. Front Physiol 2021; 12:674924. [PMID: 34248664 PMCID: PMC8267529 DOI: 10.3389/fphys.2021.674924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/23/2021] [Indexed: 12/21/2022] Open
Abstract
GLUT4 is involved in rapid glucose uptake among various kinds of cells to contribute to glucose homeostasis. Prior data have reported that aberrant glucose metabolism by GLUT4 dysfunction in the uterus could be responsible for infertility and increased miscarriage. However, the expression and precise functions of GLUT4 in the endometrium under physiological conditions remain unknown or controversial. In this study, we observed that GLUT4 exhibits a spatiotemporal expression in mouse uterus on pregnant days 1–4; its expression especially increased on pregnant day 4 during the window of implantation. We also determined that estrogen, in conjunction with progesterone, promotes the expression of GLUT4 in the endometrial epithelium in vivo or in vitro. GLUT4 is an important transporter that mediates glucose transport in endometrial epithelial cells (EECs) in vitro or in vivo. In vitro, glucose uptake decreased in mouse EECs when the cells were treated with GLUT4 small interfering RNA (siRNA). In vivo, the injection of GLUT4-siRNA into one side of the mouse uterine horns resulted in an increased glucose concentration in the uterine fluid on pregnant day 4, although it was still lower than in blood, and impaired endometrial receptivity by inhibiting pinopode formation and the expressions of leukemia inhibitory factor (LIF) and integrin ανβ3, finally affecting embryonic development and implantation. Overall, the obtained results indicate that GLUT4 in the endometrial epithelium affects embryo development by altering glucose concentration in the uterine fluid. It can also affect implantation by impairing endometrial receptivity due to dysfunction of GLUT4.
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Affiliation(s)
- Yun Long
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China.,Department of Physiology, Chongqing Three Gorges Medical College, Chongqing, China
| | - Yi-Cheng Wang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Dong-Zhi Yuan
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Xin-Hua Dai
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Lin-Chuan Liao
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Xue-Qin Zhang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Li-Xue Zhang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Yong-Dan Ma
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Yi Lei
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Zhi-Hui Cui
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Jin-Hu Zhang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Li Nie
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
| | - Li-Min Yue
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, China
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24
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García-Vázquez FA, Moros-Nicolás C, López-Úbeda R, Rodríguez-Tobón E, Guillén-Martínez A, Ross JW, Luongo C, Matás C, Hernández-Caravaca I, Avilés M, Izquierdo-Rico MJ. Evidence of haptoglobin in the porcine female genital tract during oestrous cycle and its effect on in vitro embryo production. Sci Rep 2021; 11:12041. [PMID: 34103548 PMCID: PMC8187724 DOI: 10.1038/s41598-021-90810-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/12/2021] [Indexed: 02/05/2023] Open
Abstract
Recent evidence supports involvement of the acute phase protein haptoglobin in numerous events during mammalian reproduction. The present study represents an in-depth investigation of haptoglobin expression and secretion in the porcine oviduct and uterus, and assesses its effect on porcine in vitro embryo production. A systematic study was made of sows in different oestrous stages: late follicular, early luteal and late luteal stages. Relative haptoglobin mRNA abundance was quantified by RT-qPCR. In addition, expression of the protein was analysed by immunohistochemistry and the results were complemented by Western-blot and proteomic analyses of the oviductal and uterine fluids. In vitro porcine fertilization and embryo culture were carried out in the presence of haptoglobin. The results indicate that haptoglobin mRNA expression in the porcine oviduct and uterus is most abundant during the late luteal stage of the oestrous cycle. By means of Western blot and proteomic analyses haptoglobin presence was demonstrated in the oviduct epithelium and in the oviductal and uterine fluids in different stages of the oestrous cycle. The addition of haptoglobin during gamete co-incubation had no effect on sperm penetration, monospermy or efficiency rates; however, compared with the control group, blastocyst development was significantly improved when haptoglobin was present (haptoglobin: 64.50% vs. control: 37.83%; p < 0.05). In conclusion, the presence of haptoglobin in the oviduct and uterus of sows at different stages of the oestrous cycle suggests that it plays an important role in the reproduction process. The addition of haptoglobin during in vitro embryo production improved the blastocyst rates.
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Affiliation(s)
- Francisco A. García-Vázquez
- grid.10586.3a0000 0001 2287 8496Departamento de Fisiología, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Carla Moros-Nicolás
- grid.10586.3a0000 0001 2287 8496Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Rebeca López-Úbeda
- grid.10586.3a0000 0001 2287 8496Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Ernesto Rodríguez-Tobón
- grid.10586.3a0000 0001 2287 8496Departamento de Fisiología, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Ascensión Guillén-Martínez
- grid.10586.3a0000 0001 2287 8496Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Jason W. Ross
- grid.34421.300000 0004 1936 7312Department of Animal Science, Iowa State University, Ames, IA USA
| | - Chiara Luongo
- grid.10586.3a0000 0001 2287 8496Departamento de Fisiología, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Carmen Matás
- grid.10586.3a0000 0001 2287 8496Departamento de Fisiología, Facultad de Veterinaria, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Iván Hernández-Caravaca
- grid.10586.3a0000 0001 2287 8496Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Manuel Avilés
- grid.10586.3a0000 0001 2287 8496Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
| | - Mª José Izquierdo-Rico
- grid.10586.3a0000 0001 2287 8496Departamento de Biología Celular e Histología, Facultad de Medicina, Universidad de Murcia, 30100 Murcia, Spain ,grid.452553.0Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain ,CEIR Campus Mare Nostrum (CMN), Murcia, Spain
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25
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De Bem THC, Tinning H, Vasconcelos EJR, Wang D, Forde N. Endometrium On-a-Chip Reveals Insulin- and Glucose-induced Alterations in the Transcriptome and Proteomic Secretome. Endocrinology 2021; 162:6167824. [PMID: 33693651 PMCID: PMC8143652 DOI: 10.1210/endocr/bqab054] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Indexed: 12/28/2022]
Abstract
The molecular interactions between the maternal environment and the developing embryo are key for early pregnancy success and are influenced by factors such as maternal metabolic status. Our understanding of the mechanism(s) through which these individual nutritional stressors alter endometrial function and the in utero environment for early pregnancy success is, however, limited. Here we report, for the first time, the use of an endometrium-on-a-chip microfluidics approach to produce a multicellular endometrium in vitro. Isolated endometrial cells (epithelial and stromal) from the uteri of nonpregnant cows in the early luteal phase (Days 4-7) were seeded in the upper chamber of the device (epithelial cells; 4-6 × 104 cells/mL) and stromal cells seeded in the lower chamber (1.5-2 × 104 cells/mL). Exposure of cells to different concentrations of glucose (0.5, 5.0, or 50 mM) or insulin (Vehicle, 1 or 10 ng/mL) was performed at a flow rate of 1 µL/minute for 72 hours. Quantitative differences in the cellular transcriptome and the secreted proteome of in vitro-derived uterine luminal fluid were determined by RNA-sequencing and tandem mass tagging mass spectrometry, respectively. High glucose concentrations altered 21 and 191 protein-coding genes in epithelial and stromal cells, respectively (P < .05), with a dose-dependent quantitative change in the protein secretome (1 and 23 proteins). Altering insulin concentrations resulted in limited transcriptional changes including transcripts for insulin-like binding proteins that were cell specific but altered the quantitative secretion of 196 proteins. These findings highlight 1 potential mechanism by which changes to maternal glucose and insulin alter uterine function.
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Affiliation(s)
- Tiago H C De Bem
- Discovery and Translational Sciences Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, UK
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brazil
| | - Haidee Tinning
- Discovery and Translational Sciences Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, UK
| | | | | | - Niamh Forde
- Discovery and Translational Sciences Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds, UK
- LeedsOmics, University of Leeds, Leeds, UK
- Correspondence: Niamh Forde, PhD, University of Leeds, LIGHT Laboratories, Clarendon Way, LS2 9JT, Leeds, UK.
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26
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Mahé C, Gatien J, Desnoes O, Le Bourhis D, Mermillod P, Salvetti P, Saint-Dizier M. Metabolomic analysis of oviduct fluid on day 3 post-estrus in Holstein heifers. Reprod Biol 2021; 21:100512. [PMID: 33991764 DOI: 10.1016/j.repbio.2021.100512] [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: 03/23/2021] [Revised: 04/30/2021] [Accepted: 05/05/2021] [Indexed: 11/16/2022]
Abstract
The metabolites in the oviduct fluid (OF) of both oviducts were analyzed by proton nuclear magnetic resonance (1H-NMR) in Holstein heifers on day 3 after synchronized estrus. Twenty-six metabolites were quantified, among which lactate, glycine and myoinositol were the most abundant. Six metabolites including glycine and myoinositol varied in amount according to the proximity to the corpus luteum. Glucose and histidine were among the most variable metabolites among heifers while threonine and lactate were among the most stable ones, suggesting different mechanisms of homeostasis in the OF.
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Affiliation(s)
- Coline Mahé
- Physiologie de la Reproduction et des Comportements, INRAE, CNRS, IFCE, University of Tours, 37380, Nouzilly, France
| | | | | | | | - Pascal Mermillod
- Physiologie de la Reproduction et des Comportements, INRAE, CNRS, IFCE, University of Tours, 37380, Nouzilly, France
| | | | - Marie Saint-Dizier
- Physiologie de la Reproduction et des Comportements, INRAE, CNRS, IFCE, University of Tours, 37380, Nouzilly, France; Faculty of Sciences and Techniques, Tours University, 37200, Tours, France.
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27
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Rodríguez-Alonso B, Sánchez JM, Hamdi M, McDonald M, Havlicek V, Besenfelder U, Lonergan P, Rizos D. Asynchrony between the early embryo and the reproductive tract affects subsequent embryo development in cattle. Reprod Fertil Dev 2021; 32:564-571. [PMID: 32209207 DOI: 10.1071/rd19360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 10/30/2019] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to determine the effect of maternal-embryonic asynchrony in the reproductive tract (oviduct and uterus) on subsequent embryo development in cattle. Fifty Day 1invitro-produced zygotes were transferred endoscopically into the oviduct ipsilateral to the corpus luteum of heifers (n=40) that were either synchronous with the embryos (Day 1 after ovulation) or asynchronous and ahead of the embryo (Day 3 after ovulation). A subset of heifers was killed in a commercial abattoir 3, 6 or 14 days after embryo transfer. Location within the reproductive tract, developmental stage and the quality of embryos were recorded. Transfer of embryos to an advanced (asynchronous) oviduct resulted, on Day 4, in fewer embryos at the expected location (oviduct), and a greater number of degenerated and retarded embryos with a lower total cell number than for embryos in the synchronous group. Similarly, on Day 7, asynchrony led to a greater number of degenerated and retarded embryos compared with the synchronous group. Total embryo cell number was similar among groups. Although Day 15 conceptuses were longer following asynchronous transfer, only 50% of the asynchronous heifers yielded conceptuses, compared with 100% in the synchronous group. In conclusion, asynchrony between the developing embryo and the reproductive tract has a negative effect on embryo development.
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Affiliation(s)
- Beatriz Rodríguez-Alonso
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Carretera De la Coruña KM 5.9, 28040, Madrid, Spain; and School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - José María Sánchez
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Meriem Hamdi
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Carretera De la Coruña KM 5.9, 28040, Madrid, Spain
| | - Michael McDonald
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Vitezslav Havlicek
- Reproduction Centre Wieselburg, Department for Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria; and Institute of Biotechnology in Animal Production, Interuniversity Department for Agrobiotechnology (IFA Tulln), University of Natural Resources and Applied Life Sciences, Vienna, Austria
| | - Urban Besenfelder
- Reproduction Centre Wieselburg, Department for Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria; and Institute of Biotechnology in Animal Production, Interuniversity Department for Agrobiotechnology (IFA Tulln), University of Natural Resources and Applied Life Sciences, Vienna, Austria
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Dimitrios Rizos
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA), Carretera De la Coruña KM 5.9, 28040, Madrid, Spain; and Corresponding author.
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28
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Isaac E, Pfeffer PL. Growing cattle embryos beyond Day 8 - An investigation of media components. Theriogenology 2020; 161:273-284. [PMID: 33360161 DOI: 10.1016/j.theriogenology.2020.12.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/29/2020] [Accepted: 12/07/2020] [Indexed: 02/06/2023]
Abstract
The growth of viable cattle embryos in culture to stages beyond the hatching blastocyst is of interest to developmental biologists wishing to understand developmental events beyond the first lineage decision, as well as for commercial applications, because a lengthening of the culturing time allows more time for diagnostic tests on biopsies, whereas extended survival can be used as a better assay system for monitoring developmental potential. We here report on a novel extended culture medium for embryo growth until embryonic day (Day) 12. We used a non-invasive morphological characterisation system that scored viability, inner cell mass (ICM) grade, hatching and embryo and ICM diameter. The basal medium was based on published uterine fluid concentrations of amino acids, carbohydrates and electrolytes. Addition of fetal bovine serum was necessary and the additive ITSX greatly improved culture success. We tested the inclusion of a seven-growth factor cocktail consisting of Activin A, Artemin, BMP4, EGF, FGF4, GM-CSF/CSF2 and LIF, as well as omission of individual components of the cocktail. In the context of the growth factor cocktail, Artemin and BMP4 provided the greatest benefit, while FGF omission had more positive than negative effects on embryo characteristics. Lastly, replacement of ITSX by B27-additive led to the most successful culture of embryos, in all media permutations.
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Affiliation(s)
- Ekaterina Isaac
- Victoria University of Wellington, School of Biological Sciences, Kelburn Campus, Wellington, 6012, New Zealand.
| | - Peter L Pfeffer
- Victoria University of Wellington, School of Biological Sciences, Kelburn Campus, Wellington, 6012, New Zealand.
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29
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González R, Pericuesta E, Gutiérrez-Adán A, Sjunnesson YCB. Effect of an altered hormonal environment by blood plasma collected after adrenocorticotropic administration on embryo development and gene expression in porcine embryos. Theriogenology 2020; 162:15-21. [PMID: 33388725 DOI: 10.1016/j.theriogenology.2020.11.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 11/17/2020] [Accepted: 11/19/2020] [Indexed: 01/17/2023]
Abstract
Early embryonic development may be affected by adrenal hyperactivity in stressful situations which may lead to endocrine changes in the embryo environment. A sensitive period in porcine embryo development is the 4-cell stage when the embryo genome activation occurs. A mixed in vivo-in vitro system was implemented to test whether an altered milieu around this stage could affect embryo development and blastocyst quality in the porcine model. After in vitro maturation and fertilisation, presumptive zygotes were exposed for 24 h to plasma collected after ovulation from adrenocorticotropic hormone (ACTH)-treated, non-ACTH-treated sows; and, medium without plasma, supplemented with bovine serum albumin. Subsequently, embryo development and differences in gene expression were tested among treatments. Cleavage and blastocyst rates did not differ between treatments. Blastocyst quality by morphology assessment was similar when all the resulting blastocysts were included in the analysis. However, when only expanded blastocysts (and onwards) were included in the analysis, the blastocysts from the non-ACTH plasma group showed better quality score. Blastocyst quality by morphological assessment was not mirrored by the transcription levels of various important genes for embryo development whose gene expression profile did not significantly differ among groups. It is likely that the effect of the altered environment provided by plasma from ACTH-treated sows was too short to affect embryo development. Therefore, a brief exposure to an altered endocrine environment may not have harmful consequences for the embryo once fertilisation occurs.
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Affiliation(s)
- Raquel González
- Department of Clinical Sciences, Reproduction. the Centre for Reproductive Biology in Uppsala (CRU), Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences (SLU), P.O. Box 7054, SE-750 07, Uppsala, Sweden.
| | - Eva Pericuesta
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra de La Coruña, Km 5.9, 28040, Madrid, Spain
| | - Alfonso Gutiérrez-Adán
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra de La Coruña, Km 5.9, 28040, Madrid, Spain
| | - Ylva C B Sjunnesson
- Department of Clinical Sciences, Reproduction. the Centre for Reproductive Biology in Uppsala (CRU), Faculty of Veterinary Medicine and Animal Sciences, Swedish University of Agricultural Sciences (SLU), P.O. Box 7054, SE-750 07, Uppsala, Sweden
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30
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Sánchez-Calabuig MJ, Fernández-González R, Hamdi M, Smits K, López-Cardona AP, Serres C, Macías-García B, Gutiérrez-Adán A. A high glucose concentration during early stages of in vitro equine embryo development alters expression of genes involved in glucose metabolism. Equine Vet J 2020; 53:787-795. [PMID: 32881040 DOI: 10.1111/evj.13342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 07/17/2020] [Accepted: 08/27/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND Equine embryos exhibit an unusual pattern of glucose tolerance in vitro and are currently cultured in hyperglycaemic conditions. OBJECTIVE Our main objective was to analyse the effect of different glucose concentrations on in vitro-produced equine embryo development and quality. STUDY DESIGN Experiments comparing in vitro and in vivo produced embryos. METHODS Oocytes (n = 641) were collected from post-mortem ovaries, matured in vitro and fertilised by intracytoplasmic sperm injection (ICSI). Embryo culture was divided from Day 0 to Day 4 and from Day 4 to Day 9 in three groups: 5-10 (5 and 10 mmol/L glucose respectively; n = 87); 5-17 (5 and 17.5 mmol/L; n = 66); and 10-17 (10 and 17.5 mmol/L; n = 117). A control group of 20 in vivo produced blastocysts was included. Cleavage and blastocyst rates were evaluated and embryos were snap-frozen for analysis of the relative mRNA expression of genes related to mitochondrial function, DNA methylation, apoptosis, glucose transport and metabolism. RESULTS No differences were observed in the cleavage or blastocyst rates among in vitro groups. Under high glucose conditions in vitro (10-17 group), BAX/BCL2 was higher, and PFKP, LDHA and COX2 were overexpressed compared to all other groups. The two groups with 5 mmol/L glucose concentration during the first culture stage (5-10 and 5-17) displayed similar patterns which differed to the 10-17 group. MAIN LIMITATIONS Conclusions related to embryo quality are based on gene expression patterns. Transfer of in vitro-produced embryos would reveal whether the observed differences improve embryo developmental competence. CONCLUSIONS Five mM glucose during the first days of culture seems to be preferable to avoid over-activation of embryonic glycolytic pathways. Further studies are necessary to determine whether this improves embryo developmental competence.
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Affiliation(s)
- María J Sánchez-Calabuig
- Department of Animal Medicine and Surgery, Faculty of Veterinary Science, University Complutense of Madrid, Madrid, Spain.,Department of Animal Reproduction, INIA, Madrid, Spain
| | | | - Meriem Hamdi
- Department of Animal Reproduction, INIA, Madrid, Spain
| | - Katrien Smits
- Department of Obstetrics, Reproduction and Herd Health, Ghent University, Ghent, Belgium
| | - Angela P López-Cardona
- Department of Animal Reproduction, INIA, Madrid, Spain.,Grupo de Investigación (GI) - Biogénesis, Universidad de Antioquia, Medellín, Colombia
| | - Consuelo Serres
- Department of Animal Medicine and Surgery, Faculty of Veterinary Science, University Complutense of Madrid, Madrid, Spain
| | - Beatriz Macías-García
- Animal Medicine Department, Faculty of Veterinary Sciences, University of Extremadura, Cáceres, Spain.,Research Group of Intracellular Signalling and Technology of Reproduction (SINTREP), Research Institute of Biotechnology in Livestock and Cynegetic (INBIO G+C), University of Extremadura, Cáceres, Spain
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31
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Gegenfurtner K, Fröhlich T, Kösters M, Mermillod P, Locatelli Y, Fritz S, Salvetti P, Forde N, Lonergan P, Wolf E, Arnold GJ. Influence of metabolic status and genetic merit for fertility on proteomic composition of bovine oviduct fluid†. Biol Reprod 2020; 101:893-905. [PMID: 31347661 DOI: 10.1093/biolre/ioz142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/03/2019] [Accepted: 07/22/2019] [Indexed: 11/13/2022] Open
Abstract
The oviduct plays a crucial role in fertilization and early embryo development providing the microenvironment for oocyte, spermatozoa, and early embryo. Since dairy cow fertility declined steadily over the last decades, reasons for early embryonic loss have gained increasing interest. Analyzing two animal models, this study aimed to investigate the impact of genetic predisposition for fertility and of metabolic stress on the protein composition of oviduct fluid. A metabolic model comprised maiden Holstein heifers and postpartum lactating (Lact) and non-lactating (Dry) cows, while a genetic model consisted of heifers from the Montbéliarde breed and Holstein heifers with low- and high-fertility index. In a holistic proteomic analysis of oviduct fluid from all groups using nano-liquid chromatography tandem-mass spectrometry analysis and label-free quantification, we were able to identify 1976 proteins, among which 143 showed abundance alterations in the pairwise comparisons within both models. Most differentially abundant proteins were revealed between low fertility Holstein and Montbéliarde (52) in the genetic model and between lactating and maiden Holstein (19) in the metabolic model, demonstrating a substantial effect of genetic predisposition for fertility and metabolic stress on the oviduct fluid proteome. Functional classification of affected proteins revealed actin binding, translation, and immune system processes as prominent gene ontology (GO) clusters. Notably, Actin-related protein 2/3 complex subunit 1B and the three immune system-related proteins SERPIND1 protein, immunoglobulin kappa locus protein, and Alpha-1-acid glycoprotein were affected in both models, suggesting that abundance changes of immune-related proteins in oviduct fluid play an important role for early embryonic loss.
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Affiliation(s)
- Katrin Gegenfurtner
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - Thomas Fröhlich
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - Miwako Kösters
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
| | - Pascal Mermillod
- Institut National de Recherche Agronomique (INRA), UMR7247, Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Yann Locatelli
- Institut National de Recherche Agronomique (INRA), UMR7247, Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | | | - P Salvetti
- Allice, Station de Phénotypage, Nouzilly, France
| | - Niamh Forde
- Division of Reproduction and Early Development, School of Medicine, University of Leeds, Leeds, UK
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
| | - Eckhard Wolf
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany.,Chair for Molecular Animal Breeding and Biotechnology, Gene Center and Department of Veterinary Sciences, LMU Munich, Munich, Germany
| | - Georg J Arnold
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Munich, Germany
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32
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Saint-Dizier M, Mahé C, Reynaud K, Tsikis G, Mermillod P, Druart X. Sperm interactions with the female reproductive tract: A key for successful fertilization in mammals. Mol Cell Endocrinol 2020; 516:110956. [PMID: 32712384 DOI: 10.1016/j.mce.2020.110956] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/22/2020] [Accepted: 07/20/2020] [Indexed: 12/15/2022]
Abstract
Sperm migration through the female genital tract is not a quiet journey. Uterine contractions quickly operate a drastic selection, leading to a very restrictive number of sperm reaching the top of uterine horns and finally, provided the presence of key molecules on sperm, the oviduct, where fertilization takes place. During hours and sometimes days before fertilization, subpopulations of spermatozoa interact with dynamic and region-specific maternal components, including soluble proteins, extracellular vesicles and epithelial cells lining the lumen of the female tract. Interactions with uterine and oviductal cells play important roles for sperm survival as they modulate the maternal immune response and allow a transient storage before ovulation. The body of work reported here highlights the importance of sperm interactions with proteins originated from both the uterine and oviductal fluids, as well as hormonal signals around the time of ovulation for sperm acquisition of fertilizing competence.
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Affiliation(s)
- Marie Saint-Dizier
- INRAE, UMR PRC, 37380, Nouzilly, France; University of Tours, Faculty of Sciences and Techniques, 37000, Tours, France.
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33
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Dean M. Glycogen in the uterus and fallopian tubes is an important source of glucose during early pregnancy†. Biol Reprod 2020; 101:297-305. [PMID: 31201425 DOI: 10.1093/biolre/ioz102] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/16/2019] [Accepted: 06/06/2019] [Indexed: 01/02/2023] Open
Abstract
Pregnancy loss is common during the peri-implantation period in mammals when glucose is required for both embryonic development and decidualization of the endometrium. As the uterus cannot synthesize glucose, all glucose must come directly from maternal circulation as needed or transiently stored as the macromolecule glycogen. Glycogen acts as a glucose reservoir, storing up to 55 000 glucose moieties per molecule. Endometrial glycogen concentrations are correlated with fertility in humans, indicating that glycogen is an essential source of glucose during early pregnancy. In humans and primates, endometrial glycogen concentrations peak during the luteal phase due to progesterone. In contrast, in rats and mink, estradiol triggers an accumulation of uterine glycogen during proestrus and estrus. In mated rats, the glycogen content of the endometrium increases again after implantation due to high levels of glycogen stored in the decidua. In mink, endometrial glycogen reserves are localized in the uterine epithelia at estrus. These reserves are mobilized before implantation, suggesting they are used to support embryonic growth. Uterine glycogen concentrations continue to decrease after implantation in mink, probably due to a lack of decidualization. How ovarian steroids stimulate glycogenesis in the endometrium is unclear, but current evidence suggests that estradiol/progesterone interacts with insulin or insulin-like growth factor signaling. In summary, endometrial glycogen is an essential source of glucose during the peri-implantation period. More work is needed to characterize differences among species, elucidate the fate of the glucose liberated from glycogen, and understand how ovarian steroids regulate glycogen metabolism in the uterus.
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Affiliation(s)
- Matthew Dean
- Department of Animal Science, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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34
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The dynamics between in vitro culture and metabolism: embryonic adaptation to environmental changes. Sci Rep 2020; 10:15672. [PMID: 32973241 PMCID: PMC7518437 DOI: 10.1038/s41598-020-72221-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 07/17/2020] [Indexed: 01/03/2023] Open
Abstract
Previous studies have discussed the importance of an optimal range of metabolic activity during preimplantation development. To avoid factors than can trigger an undesirable trajectory, it is important to learn how nutrients and metabolites interact to help launching the correct developmental program of the embryo, and how much the in vitro culture system can impair this process. Here, using the bovine model, we describe a factorial experimental design used to investigate the biochemical and molecular signature of embryos in response to different combinations of morphological features—i.e. speed of development—and external stimuli during in vitro culture—i.e. different oxygen tensions and glucose supplementation. Our analyses demonstrate that the embryos present heterogeneous metabolic responses depending on early morphological phenotypes and the composition of their surroundings. However, despite the contribution of each single stimulus for the embryo phenotype, oxygen tension is determinant for such differences. The lower oxygen environment boosts the metabolism of embryos with faster kinetics, in particular those cultured in lower glucose concentrations.
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35
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Milazzotto MP, de Lima CB, da Fonseca AM, dos Santos EC, Ispada J. Erasing gametes to write blastocysts: metabolism as the new player in epigenetic reprogramming. Anim Reprod 2020; 17:e20200015. [PMID: 33029209 PMCID: PMC7534565 DOI: 10.1590/1984-3143-ar2020-0015] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Understanding preimplantation embryonic development is crucial for the improvement of assisted reproductive technologies and animal production. To achieve this goal, it is important to consider that gametes and embryos are highly susceptible to environmental changes. Beyond the metabolic adaptation, the dynamic status imposed during follicular growth and early embryogenesis may create marks that will guide the molecular regulation during prenatal development, and consequently impact the offspring phenotype. In this context, metaboloepigenetics has gained attention, as it investigates the crosstalk between metabolism and molecular control, i.e., how substrates generated by metabolic pathways may also act as players of epigenetic modifications. In this review, we present the main metabolic and epigenetic events of pre-implantation development, and how these systems connect to open possibilities for targeted manipulation of reproductive technologies and animal production systems.
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Affiliation(s)
- Marcella Pecora Milazzotto
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
- Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Camila Bruna de Lima
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
- Département des Sciences Animales, Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle, Faculté des Sciences de l’Agriculture et de l’Alimentation, Université Laval, Quebec, Canada
| | - Aldcejam Martins da Fonseca
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| | - Erika Cristina dos Santos
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
| | - Jessica Ispada
- Laboratório de Epigenética e Metabolismo Embrionário, Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, Brasil
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36
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Gómez E, Muñoz M, Gatien J, Carrocera S, Martín-González D, Salvetti P. Metabolomic identification of pregnancy-specific biomarkers in blood plasma of BOS TAURUS beef cattle after transfer of in vitro produced embryos. J Proteomics 2020; 225:103883. [PMID: 32574609 DOI: 10.1016/j.jprot.2020.103883] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/12/2020] [Accepted: 06/16/2020] [Indexed: 12/30/2022]
Abstract
Blood biomarkers may help to predict pregnancy in recipients of in vitro produced (IVP) embryos. Using 1H nuclear magnetic resonance, we quantified 36 metabolites in the blood plasma of recipients (90% heifers, healthy, 1.95 years on average at the time of 1st embryo transfer -ET-) collected at Day-0 (estrus) and Day-7 (before ET time). First, IVP embryos were transferred to Asturiana de los Valles recipients as fresh (F) (N = 26) and vitrified/warmed (V/W) (N = 48) (discovery groups). Only at estrus, we discovered 4, 11, and 5 (F-ET), and 2, 2, and 4 (V/W-ET) metabolites that predicted pregnancy on Day-40, Day-62 and calving time, respectively (ROC-AUC > 0.700; P < .05). Thereafter, validation was performed in independent samples (N = 67 F and N = 63 V/W) of three cattle breeds by an index of overall classification accuracy (OCA>0.650, P < .05). The numbers of candidate biomarkers validated were 2, 9 and 1 (F-ET) and 2, 2, and 3 (V/W-ET) on Day 40, Day-62 and calving time. Relevant metabolites were validated at the three (2-Oxoglutaric acid (F-ET), and 2-Hydroxybutyric acid and Dimethylamine (V/W-ET)) and two pregnancy endpoints (Ketoleucine (F-ET); Day-40 and Day-62) analysed. Fatty acid degradation and oxidative metabolism were enriched in pregnant recipients. The candidate biomarkers identified can improve embryo-recipient selection. SIGNIFICANCE: We identified, for the first time, reliable pregnancy and birth candidate metabolite biomarkers for fresh and vitrified IVP embryos in blood of beef cattle recipients. Our findings can help to improve embryo-recipient selection, which is usually carried out in a way that females that will not become pregnant are not well differentiated.
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Affiliation(s)
- Enrique Gómez
- Centro de Biotecnología Animal - SERIDA- Camino de Rioseco, 1225 Gijón, Spain.
| | - Marta Muñoz
- Centro de Biotecnología Animal - SERIDA- Camino de Rioseco, 1225 Gijón, Spain
| | - Julie Gatien
- ALLICE, Experimental facilities, Le Perroi, 37380 Nouzilly, France
| | - Susana Carrocera
- Centro de Biotecnología Animal - SERIDA- Camino de Rioseco, 1225 Gijón, Spain
| | | | - Pascal Salvetti
- ALLICE, Experimental facilities, Le Perroi, 37380 Nouzilly, France
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37
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Kölle S, Hughes B, Steele H. Early embryo-maternal communication in the oviduct: A review. Mol Reprod Dev 2020; 87:650-662. [PMID: 32506761 DOI: 10.1002/mrd.23352] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/05/2020] [Accepted: 05/10/2020] [Indexed: 12/11/2022]
Abstract
An intact embryo-maternal communication is critical for the establishment of a successful pregnancy. To date, a huge number of studies have been performed describing the complex process of embryo-maternal signaling within the uterus. However, recent studies indicate that the early embryo communicates with the oviductal cells shortly after fertilizationand that this is important for the successful establishment of pregnancy. Only if the early embryo is capable to signal the mother within a precise timeframe and to garner a response, will the embryo be able to survive and reach the uterus. This review will give an overview of all the experimental designs which have investigated embryo-maternal interaction in the oviduct. In addition to that, it will provide a comprehensive analysis of the findings to date elucidating the morphological and molecular changes in the oviduct which are induced by the presence of the early embryo highlighting how the tubal responses affect embryo development and survival.
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Affiliation(s)
- Sabine Kölle
- Health Sciences Centre, School of Medicine, University College Dublin, Dublin, Ireland
| | - Barbara Hughes
- Health Sciences Centre, School of Medicine, University College Dublin, Dublin, Ireland
| | - Heather Steele
- Health Sciences Centre, School of Medicine, University College Dublin, Dublin, Ireland
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38
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Simintiras CA, Sánchez JM, McDonald M, Martins T, Binelli M, Lonergan P. Biochemical characterization of progesterone-induced alterations in bovine uterine fluid amino acid and carbohydrate composition during the conceptus elongation window†. Biol Reprod 2020; 100:672-685. [PMID: 30388203 DOI: 10.1093/biolre/ioy234] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/17/2018] [Accepted: 10/30/2018] [Indexed: 12/15/2022] Open
Abstract
Pregnancy establishment in cattle is contingent on conceptus elongation-a fundamental developmental event coinciding with the time during which most pregnancies fail. Elongation in vivo is directly driven by uterine secretions, indirectly influenced by systemic progesterone concentrations, and has yet to be recapitulated in vitro. To better understand the microenvironment evolved to facilitate this phenomenon, the amino acid and carbohydrate composition of uterine fluid was interrogated using high-throughput metabolomics on days 12, 13, and 14 of the estrous cycle from heifers with normal and high circulating progesterone. A total of 99 biochemicals (79 amino acids and 20 carbohydrates) were consistently identified, of which 31 showed a day by progesterone interaction. Fructose and mannitol/sorbitol did not exhibit a day by progesterone interaction, but displayed the greatest individual fluctuations (P ≤ 0.05) with respective fold increases of 18.39 and 28.53 in high vs normal progesterone heifers on day 12, and increases by 10.70-fold and 14.85-fold in the uterine fluid of normal progesterone animals on day 14 vs day 12. Moreover, enrichment analyses revealed that the phenylalanine, glutathione, polyamine, and arginine metabolic pathways were among the most affected by day and progesterone. In conclusion, progesterone had a largely stabilizing effect on amino acid flux, and identified biochemicals of likely importance to conceptus elongation initiation include arginine, fructose, glutamate, and mannitol/sorbitol.
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Affiliation(s)
| | - José M Sánchez
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Michael McDonald
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Thiago Martins
- Department of Animal Sciences, University of Florida, Gainesville, Florida, USA.,Department of Animal Reproduction, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Mario Binelli
- Department of Animal Sciences, University of Florida, Gainesville, Florida, USA
| | - Pat Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
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39
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Abstract
Assisted reproduction techniques (ARTs) provide access to early stage embryos whose analysis and assessment deliver valuable information. The handling of embryos, including the in vitro production of bovine embryos, is a rapidly evolving area which nonetheless exposes the embryos to unnatural conditions for a period of time. The Fallopian tube provides innumerable quantitative and qualitative factors, all of which guarantee the successful development of the embryo. It is well known that the Fallopian tube can be bypassed, using embryo transfer, resulting in successful implantation in the target recipient animal and the birth of calves. However, the question arises as to whether such circumvention has a negative impact on the embryo during this sensitive development period. First crosstalk between the embryo and its environment confirms mutual recognition activities and indicate bilateral effects. Nowadays, in vitro production of bovine embryos is a well-established technology. However, it is still evident that in vitro generated embryos are not qualitatively comparable to embryos obtained ex vivo. To counteract these differences, comparative studies between in vitro and ex vivo embryos are advantageous, as embryos grown in their physiological environment can provide a blueprint or gold standard against which to compare embryos produced in vitro. Attempts to harness the bovine oviduct were sometimes very invasive and did not result in wide acceptance and routine use. Long-term development and refinement of transvaginal endoscopy for accessing the bovine oviduct has meanwhile been routinely applied for research as well as in practice. Comparative studies combining in vitro development with development in the cattle oviduct revealed that the environmental conditions to which the embryo is exposed before activation of the embryonic genome can have detrimental and lasting effects on its further development. These effects are manifested as deviations in gene expression profiles and methylation signatures as well as frequency of whole chromosomal or segmental aberrations. Furthermore, it was shown that hormonal superstimulation (multiple ovulation and embryo transfer), varying progesterone concentrations as well as metabolic disorders caused by high milk production, markedly affected embryo development in the postpartum period. Assisted reproductive techniques that allow the production and handling of extra numbers of generated embryos promise to have a very high impact on scientific and practical application. Any influence on the early embryonic life, both in animals and in vitro, is accompanied by a sensitive change in embryonic activity and should be assessed in vivo on the basis of physiological conditions before being used for ART.
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40
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Mathew DJ, Sánchez JM, Passaro C, Charpigny G, Behura SK, Spencer TE, Lonergan P. Interferon tau-dependent and independent effects of the bovine conceptus on the endometrial transcriptome†. Biol Reprod 2020; 100:365-380. [PMID: 30203055 DOI: 10.1093/biolre/ioy199] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/14/2018] [Accepted: 09/07/2018] [Indexed: 12/21/2022] Open
Abstract
This study investigated bovine conceptus-induced modifications to the endometrial transcriptome related to effects of interferon tau (IFNT), conceptus origin (in vivo vs. in vitro), and conceptus sex. In vitro (IVF) or in vivo (superovulation and artificial insemination, AI) produced blastocysts were transferred into recipient heifers on day 7 of the estrous cycle. On day 15, IVF- or AI-derived conceptuses were obtained by uterine flushing and individually placed on endometrial explants in media for 6 h. Explants were also cultured with media alone as a control or media containing 100 ng/mL IFNT. Total explant RNA was analyzed by RNA-Seq. Incubation of endometrium with IFNT or IVF- or AI-derived conceptuses changed (P ≤ 0.001) expression of 491, 498, and 576 transcripts, respectively, compared to the control. Further, 369 differentially expressed genes (DEGs) were common between explants exposed to IFNT or a conceptus. A total of 240 DEGs were uniquely altered by conceptuses (IVF- and AI-derived) but not IFNT. Of these transcripts, 46 were shared between the IVF and AI groups, while 61 and 133 were specific to IVF and AI conceptuses, respectively. Five genes [melanophilin (MLPH), prominin-2 (PROM2), myeloid associated differentiation marker (MYADM), vomeronasal 1 receptor 4 like (VN1R4L) and 5-hydroxytryptamine receptor 1A (HTR1A)] were more abundant in endometrium exposed to female compared to male conceptuses (P < 0.001). A single gene [ADP-ribosylation factor like GTPase 4C (ARL4C)] was more abundant in response to male conceptuses (P < 0.001) than female conceptuses. These data support the hypothesis that conceptus regulation of gene expression in the endometrium is complex and involves factors other than IFNT that may have a biological role in pregnancy establishment.
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Affiliation(s)
- Daniel J Mathew
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland.,Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, West Virginia, USA
| | - José M Sánchez
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Claudia Passaro
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - Gilles Charpigny
- INRA, Biologie du Développement et Reproduction, Jouy en Josas, France
| | - Susanta K Behura
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | - Thomas E Spencer
- Division of Animal Sciences, University of Missouri, Columbia, Missouri, USA
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
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41
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Rodríguez-Alonso B, Maillo V, Acuña OS, López-Úbeda R, Torrecillas A, Simintiras CA, Sturmey R, Avilés M, Lonergan P, Rizos D. Spatial and Pregnancy-Related Changes in the Protein, Amino Acid, and Carbohydrate Composition of Bovine Oviduct Fluid. Int J Mol Sci 2020; 21:E1681. [PMID: 32121434 PMCID: PMC7084926 DOI: 10.3390/ijms21051681] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 02/27/2020] [Accepted: 02/27/2020] [Indexed: 02/07/2023] Open
Abstract
Knowledge of how the biochemical composition of the bovine oviduct is altered due to the oviduct anatomy or the presence of an embryo is lacking. Thus, the aim of this study was to assess the effect of (І) oviduct anatomy and (ІІ) embryo presence on oviductal fluid (OF) protein, amino acid, and carbohydrate composition. Cross-bred beef heifers (n = 19) were synchronized and those in standing estrus were randomly allocated to a cyclic (non-bred) or pregnant (artificially inseminated) group. All heifers were slaughtered on Day 3 after estrus. The oviducts ipsilateral to the corpus luteum from each animal were isolated, straightened and cut, separating ampulla and isthmus. Each portion was flushed with 500 µl of PBS enabling recovery of the oocyte/embryo. Recovered unfertilized oocytes (cyclic group) and embryos (8-cell embryos; pregnant group) were located in the isthmus of the oviduct. Samples of flushing medium from the isthmus and ampulla were used for proteomic (n = 2 per group), amino acid (n = 5), and carbohydrate (n = 5) analysis. For proteomic analysis, total protein from cyclic and pregnant samples were labelled with different cyanine fluorescent probes and separated according to the isoelectric point using immobilized pH gradient strips (pH 3-10, 17 cm, Protean® IEF cell system, Bio Rad). Second dimension was performed in a polyacrylamide gel (12%) in the presence of SDS using a Protean II XL system (Bio Rad). Images were obtained with a Typhoon 9410 scanner and analyzed with Progenesis SameSpots software v 4.0. Amino acid content in the OF was determined by high performance liquid chromatography (HPLC). Glucose, lactate, and pyruvate were quantified using microfluorometric enzyme-linked assays. For the proteomic assessment, the results of the image analysis were compared by ANOVA. For both amino acid and carbohydrate analyses, statistical analysis was carried out by 2-way ANOVA with the Holm-Sidak nonparametric post hoc analysis. On Day 3 post-estrus, OF composition varied based on (І) anatomical region, where isthmic metabolites were present in lower (i.e., lactate, glycine, and alanine) or higher (i.e., arginine) concentrations compared to the ampulla; and (ІІ) embryo presence, which was correlated with greater, arginine, phosphoglycerate kinase 1, serum albumin, α-1-antiproteinase and IGL@ protein concentrations. In conclusion, data indicate that the composition of bovine OF is anatomically dynamic and influenced by the presence of an early embryo.
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Affiliation(s)
- Beatriz Rodríguez-Alonso
- Department of Animal Reproduction, National Institute for Agricultural and Food Research and Technology (INIA), Ctra. de la Coruña KM 5.9, 28040 Madrid, Spain; (B.R.-A.); (V.M.)
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland; (C.A.S.); (P.L.)
| | - Veronica Maillo
- Department of Animal Reproduction, National Institute for Agricultural and Food Research and Technology (INIA), Ctra. de la Coruña KM 5.9, 28040 Madrid, Spain; (B.R.-A.); (V.M.)
| | - Omar Salvador Acuña
- Department of Cell Biology and Histology, Faculty of Medicine, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), University of Murcia, 30100 Murcia, Spain; (O.S.A.); (R.L.-Ú.); (M.A.)
- Faculty of Veterinary and Zootechnics, Autonomous University of Sinaloa, Culiacan 80246, Mexico
- Department of Research, Animal Reproduction Biotechnology (ARBiotech), Culiacan 80015, Mexico
| | - Rebeca López-Úbeda
- Department of Cell Biology and Histology, Faculty of Medicine, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), University of Murcia, 30100 Murcia, Spain; (O.S.A.); (R.L.-Ú.); (M.A.)
| | | | - Constantine A. Simintiras
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland; (C.A.S.); (P.L.)
- Center for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull HU3 2JZ, UK;
| | - Roger Sturmey
- Center for Atherothrombosis and Metabolic Disease, Hull York Medical School, University of Hull, Hull HU3 2JZ, UK;
| | - Manuel Avilés
- Department of Cell Biology and Histology, Faculty of Medicine, Instituto Murciano de Investigación Biosanitaria (IMIB-Arrixaca), University of Murcia, 30100 Murcia, Spain; (O.S.A.); (R.L.-Ú.); (M.A.)
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland; (C.A.S.); (P.L.)
| | - Dimitrios Rizos
- Department of Animal Reproduction, National Institute for Agricultural and Food Research and Technology (INIA), Ctra. de la Coruña KM 5.9, 28040 Madrid, Spain; (B.R.-A.); (V.M.)
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Composing the Early Embryonic Microenvironment: Physiology and Regulation of Oviductal Secretions. Int J Mol Sci 2019; 21:ijms21010223. [PMID: 31905654 PMCID: PMC6982147 DOI: 10.3390/ijms21010223] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/19/2019] [Accepted: 12/25/2019] [Indexed: 12/22/2022] Open
Abstract
The oviductal fluid is the first environment experienced by mammalian embryos at the very beginning of life. However, it has long been believed that the oviductal environment was not essential for proper embryonic development. Successful establishment of in vitro embryo production techniques (which completely bypass the oviduct) have reinforced this idea. Yet, it became evident that in vitro produced embryos differ markedly from their in vivo counterparts, and these differences are associated with lower pregnancy outcomes and more health issues after birth. Nowadays, researchers consider the oviduct as the most suitable microenvironment for early embryonic development and a substantial effort is made to understand its dynamic, species-specific functions. In this review, we touch on the origin and molecular components of the oviductal fluid in mammals, where recent progress has been made thanks to the wider use of mass spectrometry techniques. Some of the factors and processes known to regulate oviductal secretions, including the embryo itself, as well as ovulation, insemination, endogenous and exogenous hormones, and metabolic and heat stress, are summarized. Special emphasis is laid on farm animals because, owing to the availability of sample material and the economic importance of fertility in livestock husbandry, a large part of the work on this topic has been carried out in domestic animals used for dairy and/or meat production.
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Gatien J, Mermillod P, Tsikis G, Bernardi O, Janati Idrissi S, Uzbekov R, Le Bourhis D, Salvetti P, Almiñana C, Saint-Dizier M. Metabolomic Profile of Oviductal Extracellular Vesicles across the Estrous Cycle in Cattle. Int J Mol Sci 2019; 20:ijms20246339. [PMID: 31888194 PMCID: PMC6941065 DOI: 10.3390/ijms20246339] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 02/08/2023] Open
Abstract
Oviductal extracellular vesicles (oEVs) have been proposed as key modulators of gamete/embryo maternal interactions. The aim of this study was to examine the metabolite content of oEVs and its regulation across the estrous cycle in cattle. Oviductal EVs were isolated from bovine oviducts ipsilateral and contralateral to ovulation at four stages of the estrous cycle (post-ovulatory stage, early and late luteal phases, and pre-ovulatory stage). The metabolomic profiling of EVs was performed by proton nuclear magnetic resonance spectroscopy (NMR). NMR identified 22 metabolites in oEVs, among which 15 were quantified. Lactate, myoinositol, and glycine were the most abundant metabolites throughout the estrous cycle. The side relative to ovulation had no effect on the oEVs' metabolite concentrations. However, levels of glucose-1-phosphate and maltose were greatly affected by the cycle stage, showing up to 100-fold higher levels at the luteal phase than at the peri-ovulatory phases. In contrast, levels of methionine were significantly higher at peri-ovulatory phases than at the late-luteal phase. Quantitative enrichment analyses of oEV-metabolites across the cycle evidenced several significantly regulated metabolic pathways related to sucrose, glucose, and lactose metabolism. This study provides the first metabolomic characterization of oEVs, increasing our understanding of the potential role of oEVs in promoting fertilization and early embryo development.
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Affiliation(s)
- Julie Gatien
- Allice, 37380 Nouzilly, France; (J.G.); (S.J.I.); (D.L.B.); (P.S.)
| | - Pascal Mermillod
- Institut National de la Recherche Agronomique (INRA), CNRS 7247, University of Tours, IFCE, UMR85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France; (P.M.); (G.T.); (O.B.); (C.A.)
| | - Guillaume Tsikis
- Institut National de la Recherche Agronomique (INRA), CNRS 7247, University of Tours, IFCE, UMR85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France; (P.M.); (G.T.); (O.B.); (C.A.)
| | - Ophélie Bernardi
- Institut National de la Recherche Agronomique (INRA), CNRS 7247, University of Tours, IFCE, UMR85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France; (P.M.); (G.T.); (O.B.); (C.A.)
| | | | - Rustem Uzbekov
- Faculty of Medicine, University of Tours, 37000 Tours, France;
- Faculty of Bioengineering and Bioinformatics, Moscow State University, 119991 Moscow, Russia
| | | | - Pascal Salvetti
- Allice, 37380 Nouzilly, France; (J.G.); (S.J.I.); (D.L.B.); (P.S.)
| | - Carmen Almiñana
- Institut National de la Recherche Agronomique (INRA), CNRS 7247, University of Tours, IFCE, UMR85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France; (P.M.); (G.T.); (O.B.); (C.A.)
- VetSuisse Faculty, University of Zurich, 8057 Zurich, Switzerland
| | - Marie Saint-Dizier
- Institut National de la Recherche Agronomique (INRA), CNRS 7247, University of Tours, IFCE, UMR85 Physiologie de la Reproduction et des Comportements, 37380 Nouzilly, France; (P.M.); (G.T.); (O.B.); (C.A.)
- Faculty of Sciences and Techniques, University of Tours, 37200 Tours, France
- Correspondence: ; Tel.: +33-247-427-508
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"Biological Adhesion" is a Significantly Regulated Molecular Process during Long-Term Primary In Vitro Culture of Oviductal Epithelial Cells (Oecs): A Transcriptomic and Proteomic Study. Int J Mol Sci 2019; 20:ijms20143387. [PMID: 31295879 PMCID: PMC6678391 DOI: 10.3390/ijms20143387] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 06/25/2019] [Accepted: 07/08/2019] [Indexed: 01/11/2023] Open
Abstract
Oviductal epithelial cells (OECs) actively produce stimulating and protecting factors, favoring survival and viability of gametes and early embryos. The oviduct participates in the initial reproductive events, which strongly depends on adhesion. The analysis of differential gene expression in OECs, during long-term in vitro culture, enables recognition of new molecular markers regulating several processes, including "biological adhesion". Porcine oviducts were stained with hematoxylin and eosin, as well as with antibodies against epithelial markers. Then, OECs were long-term in vitro cultured and after 24 h, 7, 15, and 30 days of culture were subjected to transcriptomic and proteomic assays. Microarrays were employed to evaluate gene expression, with Matrix-assisted laser desorption/ionization-time of light (MALDI-TOF) mass spectrometry applied to determine the proteome. The results revealed proper morphology of the oviducts and typical epithelial structure of OECs during the culture. From the set of differentially expressed genes (DEGs), we have selected the 130 that encoded proteins detected by MALDI-TOF MS analysis. From this gene pool, 18 significantly enriched gene ontology biological processes (GO BP) terms were extracted. Among them we focused on genes belonging to "biological adhesion" GO BP. It is suggested that increased expression of studied genes can be attributed to the process of intensive secretion of substances that exhibit favorable influence on oviductal environment, which prime gametes adhesion and viability, fertilization, and early embryo journey.
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Banliat C, Tomas D, Teixeira-Gomes AP, Uzbekova S, Guyonnet B, Labas V, Saint-Dizier M. Stage-dependent changes in oviductal phospholipid profiles throughout the estrous cycle in cattle. Theriogenology 2019; 135:65-72. [PMID: 31203089 DOI: 10.1016/j.theriogenology.2019.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/29/2019] [Accepted: 06/05/2019] [Indexed: 12/16/2022]
Abstract
Sperm capacitation, fertilization and embryo development take place in the oviduct during the periovulatory period of the estrous cycle. Phospholipids are crucial metabolites for sperm capacitation and early embryo development. The aim of this study was to monitor the abundance of phospholipids in the bovine oviductal fluid (OF) according to the stage of the estrous cycle and the side relative to ovulation. Pairs of bovine oviducts were collected in a slaughterhouse and classified into four stages of the estrous cycle: post-ovulatory (Post-ov), mid-luteal (Mid-lut), late-luteal (Late-lut) and pre-ovulatory (Pre-ov) phases (n = 17 cows/stage). Cell-free OF from oviducts ipsilateral and contralateral to the site of ovulation were analyzed using MALDI-TOF mass spectrometry. Lipid identification was achieved by high resolution mass spectrometry. A total of 274 lipid masses were detected in the mass range of 400-1000 Da, corresponding mostly to phosphatidylcholines (PC), lysoPC, phosphatidylethanolamine (PE), lysoPE and sphingomyelins (SM). Ipsilateral and contralateral OF did not differ in their lipid profiles at any stage of the cycle. However, 127 and 96 masses were differentially abundant between stages in ipsilateral and contralateral OF, respectively. Highest differences in lipid profiles were observed in the Pre-ov vs. Mid-lut and Pre-ov vs. Late-lut comparisons in both sides relative to ovulation. Differential abundance of specific molecules of PC, PE, SM and l-carnitine were observed at Pre-ov and Post-ov compared with the luteal phase. This work proposes new candidates potentially able to regulate sperm capacitation and early embryo development.
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Affiliation(s)
- Charles Banliat
- UMR PRC, INRA 85, CNRS 7247, University of Tours, IFCE, 37380, Nouzilly, France; Union Evolution, Rue Eric Tabarly CS10040, 35538, Noyal-Sur-Vilaine, France
| | - Daniel Tomas
- UMR PRC, INRA 85, CNRS 7247, University of Tours, IFCE, 37380, Nouzilly, France; Plate-forme de Chirurgie et d'Imagerie pour la Recherche et l'Enseignement (CIRE), Pôle d'Analyse et d'Imagerie des Biomolécules (PAIB), INRA, CHRU of Tours, University of Tours, 37380, Nouzilly, France
| | - Ana-Paula Teixeira-Gomes
- Plate-forme de Chirurgie et d'Imagerie pour la Recherche et l'Enseignement (CIRE), Pôle d'Analyse et d'Imagerie des Biomolécules (PAIB), INRA, CHRU of Tours, University of Tours, 37380, Nouzilly, France; UMR ISP, INRA 1282, University of Tours, 37380, Nouzilly, France
| | - Svetlana Uzbekova
- UMR PRC, INRA 85, CNRS 7247, University of Tours, IFCE, 37380, Nouzilly, France
| | - Benoît Guyonnet
- Union Evolution, Rue Eric Tabarly CS10040, 35538, Noyal-Sur-Vilaine, France
| | - Valérie Labas
- UMR PRC, INRA 85, CNRS 7247, University of Tours, IFCE, 37380, Nouzilly, France; Plate-forme de Chirurgie et d'Imagerie pour la Recherche et l'Enseignement (CIRE), Pôle d'Analyse et d'Imagerie des Biomolécules (PAIB), INRA, CHRU of Tours, University of Tours, 37380, Nouzilly, France
| | - Marie Saint-Dizier
- UMR PRC, INRA 85, CNRS 7247, University of Tours, IFCE, 37380, Nouzilly, France; University of Tours, Faculty of Sciences and Techniques, 37200, Tours, France.
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Simintiras CA, Sánchez JM, McDonald M, Lonergan P. The influence of progesterone on bovine uterine fluid energy, nucleotide, vitamin, cofactor, peptide, and xenobiotic composition during the conceptus elongation-initiation window. Sci Rep 2019; 9:7716. [PMID: 31118434 PMCID: PMC6531537 DOI: 10.1038/s41598-019-44040-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 05/07/2019] [Indexed: 11/09/2022] Open
Abstract
Conceptus elongation coincides with one of the periods of greatest pregnancy loss in cattle and is characterized by rapid trophectoderm expansion, commencing ~ Day 13 of pregnancy, i.e. before maternal pregnancy recognition. The process has yet to be recapitulated in vitro and does not occur in the absence of uterine gland secretions in vivo. Moreover, conceptus elongation rates are positively correlated to systemic progesterone in maternal circulation. It is, therefore, a maternally-driven and progesterone-correlated developmental phenomenon. This study aimed to comprehensively characterize the biochemical composition of the uterine luminal fluid on Days 12-14 - the elongation-initiation window - in heifers with normal vs. high progesterone, to identify molecules potentially involved in conceptus elongation initiation. Specifically, nucleotide, vitamin, cofactor, xenobiotic, peptide, and energy metabolite profiles of uterine luminal fluid were examined. A total of 59 metabolites were identified, of which 6 and 3 displayed a respective progesterone and day effect, whereas 16 exhibited a day by progesterone interaction, of which 8 were nucleotide metabolites. Corresponding pathway enrichment analysis revealed that pyridoxal, ascorbate, tricarboxylic acid, purine, and pyrimidine metabolism are of likely importance to to conceptus elongation initiation. Moreover, progesterone reduced total metabolite abundance on Day 12 and may alter the uterine microbiome.
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Affiliation(s)
| | - José M Sánchez
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Michael McDonald
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland.
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Crouse MS, Greseth NP, McLean KJ, Crosswhite MR, Pereira NN, Ward AK, Reynolds LP, Dahlen CR, Neville BW, Borowicz PP, Caton JS. Maternal nutrition and stage of early pregnancy in beef heifers: impacts on hexose and AA concentrations in maternal and fetal fluids1. J Anim Sci 2019; 97:1296-1316. [PMID: 30649334 DOI: 10.1093/jas/skz013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 01/08/2019] [Indexed: 01/12/2023] Open
Abstract
We examined the hypothesis that maternal nutrition and day of gestation would affect the concentrations of AAs and hexoses in bovine utero-placental fluids and maternal serum from days 16 to 50 of gestation. Forty-nine cross-bred Angus heifers were bred via artificial insemination and fed a control diet (CON = 100% of requirements for growth) or a restricted diet (RES = 60% of CON) and ovariohysterectomized on days 16, 34, or 50 of gestation; nonpregnant controls were not bred and ovariohysterectomized on day 16 of the synchronized estrous cycle. The resulting design was a completely randomized design with a 2 × 3 factorial + 1 arrangement of treatments. Maternal serum, histotroph, allantoic fluid, and amniotic fluid were collected at time of ovariohysterectomy. Samples were then analyzed for concentrations of AAs and intermediary metabolites: alanine (Ala), arginine, asparagine (Asn), aspartate (Asp), citrulline, cysteine, glutamine, glutamate (Glu), glycine (Gly), histidine, isoleucine, leucine (Leu), lysine, methionine (Met), ornithine, phenylalanine (Phe), proline (Pro), serine (Ser), threonine (Thr), tryptophan, tyrosine (Tyr), and valine (Val). The concentrations of Gly, Ser, and Thr in maternal serum were greater (P ≤ 0.05) in CON compared with RES. Furthermore, day of gestation affected (P ≤ 0.05) concentrations of Asn, Glu, Phe, Thr, and Tyr in maternal serum. Status of maternal nutrition affected the Asp concentration of histotroph where RES was greater (P = 0.02) than CON. In histotroph, Ala, Leu, Met, and Val concentrations were greater (P ≤ 0.05) on day 50 compared with day 16. Additionally, Glu and Pro concentrations in histotroph were greater (P < 0.01) on days 34 and 50 compared with day 16. A day × treatment interaction was observed for the concentration of Val in allantoic fluid where day 34 CON was greater (P = 0.05) than all other days and nutritional treatments. In addition, the concentration of Gln in amniotic fluid experienced a day × treatment interaction where day 34 RES was greater (P ≤ 0.05) than day 34 CON, which was greater (P ≤ 0.05) than day 50 CON and RES. These data support our hypothesis that day of gestation and maternal nutrition affect the concentrations of various neutral and acidic AA in beef heifer utero-placental fluids and maternal serum from days 16 to 50 of gestation.
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Affiliation(s)
- Matthew S Crouse
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND
| | | | - Kyle J McLean
- Department of Animal Science, University of Tennessee, Knoxville, TN
| | | | - Nicolas Negrin Pereira
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND
| | - Alison K Ward
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND
| | - Lawrence P Reynolds
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND
| | - Carl R Dahlen
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND
| | | | - Pawel P Borowicz
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND
| | - Joel S Caton
- Center for Nutrition and Pregnancy, Department of Animal Sciences, North Dakota State University, Fargo, ND
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Locatelli Y, Forde N, Blum H, Graf A, Piégu B, Mermillod P, Wolf E, Lonergan P, Saint-Dizier M. Relative effects of location relative to the corpus luteum and lactation on the transcriptome of the bovine oviduct epithelium. BMC Genomics 2019; 20:233. [PMID: 30898106 PMCID: PMC6427878 DOI: 10.1186/s12864-019-5616-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 03/14/2019] [Indexed: 12/20/2022] Open
Abstract
Background Lactation and associated metabolic stresses during the post-partum period have been shown to impair fertility in dairy cows. The oviduct plays key roles in embryo development and the establishment of pregnancy in cattle. The aim of this study was to investigate the effects of lactation and location relative to the corpus luteum (CL) on the transcriptome of the bovine oviduct epithelium. Results An original animal model was used. At 60 days post-partum, Holstein lactating (n = 4) and non-lactating (i.e. never milked after calving; n = 5) cows, as well as control nulliparous heifers (n = 5), were slaughtered on Day 3 following induced estrus, and epithelial samples from the oviductal ampulla and isthmus ipsilateral and contralateral to the corpus luteum (CL) were recovered for RNA sequencing. In the oviduct ipsilateral to the CL, differentially expressed genes (DEGs) were identified between heifers compared with both postpartum cow groups. However, only 15 DEGs were identified between post-partum lactating and non-lactating cows in the ipsilateral isthmus and none were identified in the ipsilateral ampulla. In contrast, 192 and 2583 DEGs were identified between ipsilateral and contralateral ampulla and isthmus, respectively. In both regions, more DEGs were identified between ipsilateral and contralateral oviducts in non-lactating cows and heifers than in lactating cows. Functional annotation of the DEGs associated with comparisons between metabolic groups highlighted a number of over-represented biological functions and cell pathways including immune response and cholesterol/steroid biosynthesis. Conclusions Gene expression in the oviduct epithelium, particularly in the isthmus, was more affected by the location relative to the CL than by lactation at Day 3 post-estrus. Furthermore, the effect of the proximity to the CL was modulated by the metabolic status of the cow. Electronic supplementary material The online version of this article (10.1186/s12864-019-5616-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yann Locatelli
- UMR85 PRC, INRA, CNRS 7247, Université de Tours, IFCE, Nouzilly, France.,MNHN, Laboratoire de la Réserve Zoologique de la Haute Touche, Obterre, France
| | - Niamh Forde
- Division of Reproduction and Early Development, Faculty of Medicine and Health Sciences, University of Leeds, Nouzilly, UK
| | - Helmut Blum
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Leeds, Germany
| | - Alexander Graf
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Leeds, Germany
| | - Benoît Piégu
- UMR85 PRC, INRA, CNRS 7247, Université de Tours, IFCE, Nouzilly, France
| | - Pascal Mermillod
- UMR85 PRC, INRA, CNRS 7247, Université de Tours, IFCE, Nouzilly, France
| | - Eckhard Wolf
- Laboratory for Functional Genome Analysis (LAFUGA), Gene Center, LMU Munich, Leeds, Germany
| | - Patrick Lonergan
- School of Agriculture and Food Science, University College Dublin, Dublin, Ireland
| | - Marie Saint-Dizier
- UMR85 PRC, INRA, CNRS 7247, Université de Tours, IFCE, Nouzilly, France. .,Université de Tours, UFR Sciences et Techniques, Parc de Grandmont, F-37200, Tours, France.
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49
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Drews B, Milojevic V, Giller K, Ulbrich S. Fatty acid profile of blood plasma and oviduct and uterine fluid during early and late luteal phase in the horse. Theriogenology 2018; 114:258-265. [DOI: 10.1016/j.theriogenology.2018.04.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/28/2018] [Accepted: 04/04/2018] [Indexed: 12/21/2022]
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Uhde K, van Tol HTA, Stout TAE, Roelen BAJ. Exposure to elevated glucose concentrations alters the metabolomic profile of bovine blastocysts. PLoS One 2018; 13:e0199310. [PMID: 29924852 PMCID: PMC6010268 DOI: 10.1371/journal.pone.0199310] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 06/05/2018] [Indexed: 12/13/2022] Open
Abstract
Chronically high blood glucose concentrations are a characteristic of diabetes mellitus. Maternal diabetes affects the metabolism of early embryos and can cause a delay in development. To mimic maternal diabetes, bovine in vitro fertilization and embryo culture were performed in fertilization medium and culture medium containing 0.5, 2, 3, and 5 mM, glucose whereas under control conditions, the medium was glucose free (0 mM). Compared to control conditions (0 mM, 31%), blastocyst development was decreased to 23% with 0.5 and 2 mM glucose. Presence of 3 or 5 mM glucose in the medium resulted in decreased blastocyst rates (20% and 10% respectively). The metabolomic profile of resulting day 8 blastocysts was analysed by UPLC-MS/MS, and compared to that of blastocysts cultured in control conditions. Elevated glucose concentrations stimulated an increase in glycolysis and activity of the hexosamine pathway, which is involved in protein glycosylation. However, components of the tricarboxylic acid cycle, such as citrate and alpha-ketoglutarate, were reduced in glucose stimulated blastocysts, suggesting that energy production from pyruvate was inefficient. On the other hand, activity of the polyol pathway, an alternative route to energy generation, was increased. In short, cattle embryos exposed to elevated glucose concentrations during early development showed changes in their metabolomic profile consistent with the expectations of exposure to diabetic conditions.
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Affiliation(s)
- Karen Uhde
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Helena T. A. van Tol
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Tom A. E. Stout
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
| | - Bernard A. J. Roelen
- Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, The Netherlands
- * E-mail:
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