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Ağaoğlu ÖK, Ağaoğlu AR, Özmen Ö, Turgut AO, Saatci M. Expression and localization of insulin-like growth factor gene family members in the caprine ovarian and uterine tissues during different pregnancy stages. Trop Anim Health Prod 2023; 55:301. [PMID: 37723411 DOI: 10.1007/s11250-023-03719-9] [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: 04/19/2023] [Accepted: 09/12/2023] [Indexed: 09/20/2023]
Abstract
Goats are of significant economic importance, yet our knowledge of the molecular pathways involved in their pregnancy remains limited. This study aims to investigate the role of IGFs in uterine and ovarian cellular events during pregnancy in goats. Forty-two Hair Goats were examined, including four pregnancy groups representing embryo-positive (G1, n=7), early (G2, n=7), mid (G3, n=7), and late pregnancy (G4, n=7), as well as two luteal stage groups representing early (G5, n=7) and late (G6, n=7) phases. Uterine and ovarian tissues were collected, and RT-qPCR and immunohistochemistry were performed to evaluate IGF expression. The results showed that IGF1 and IGF2 expressions were significantly higher in G1 than in other pregnancy and control groups (p < 0.05). Additionally, IGFBP1 expression was higher in G2 than in G1 and G4 (p < 0.05), and IGFBP3 expression was higher in G4 than in any other pregnancy stage (p < 0.05). However, no statistically significant differences were observed in the expression levels of IGFBP4 and IGFBP6 between any of the groups. Finally, IGFBP5 expression was significantly higher in G1, G3, and G4 compared to G2 (p < 0.05). Overall, the dynamic changes observed in the expression of the IGF gene family during different stages of pregnancy highlight the crucial role of IGFs in regulating pregnancy in goats.
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Affiliation(s)
- Özgecan Korkmaz Ağaoğlu
- Department of Genetics, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, 15100, Burdur, Turkey.
| | - Ali Reha Ağaoğlu
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, 15100, Burdur, Turkey
| | - Özlem Özmen
- Department of Pathology, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, 15100, Burdur, Turkey
| | - Ali Osman Turgut
- Department of Animal Science, Faculty of Veterinary Medicine, Siirt University, 56100, Siirt, Turkey
| | - Mustafa Saatci
- Department of Animal Science, Fethiye Faculty of Agriculture, Muğla Sıtkı Koçman University, 48300, Muğla, Turkey
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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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Rodríguez FM, Cattaneo Moreyra ML, Huber E, Gareis NC, Etchevers L, Ortega HH, Salvetti NR, Rey F. An altered expression of components of the IGF system could contribute to follicular persistence in Holstein cows. Res Vet Sci 2022; 143:99-106. [PMID: 34999441 DOI: 10.1016/j.rvsc.2021.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 12/08/2021] [Accepted: 12/28/2021] [Indexed: 12/22/2022]
Abstract
In dairy cows, reproductive diseases such as cystic ovarian disease (COD) represent a major problem that impacts on dairy production. It has been postulated that the insulin-like growth factor (IGF) system may contribute to follicular persistence and development of COD. Thus, the aim of the present study was to analyze relevant members of the IGF system in a critical period immediately after the expected time of ovulation, to obtain information about their role in follicular persistence in dairy cows. Proteins of the IGF system were evaluated at 0 (expected day of ovulation), 5, 10 and 15 days of follicular persistence to determine whether the changes previously detected in cows with COD occur early in COD pathogenesis. The serum concentration of IGF1 was higher in cows with 10 and 15 days of follicular persistence than in control cows. IGF1 expression in granulosa cells was similar in the follicles analyzed. In contrast, in theca cells, persistent follicles of days 5 and 10 showed the lowest IGF1 expression. IGF binding protein (IGFBP) 2 and 3 expression was lower in persistent follicles than in dominant follicles of the control group. Although IGF receptor (IGFR) 1 expression was similar in the groups analyzed, p-IGFR1 expression was significantly higher in dominant follicles of the control group than in persistent follicles. These data suggest alterations in the IGF system at the early stages of follicular persistence. The evidences obtained allow supporting that the IGF system could plays a key role in dairy cattle reproduction.
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Affiliation(s)
- Fernanda Mariel Rodríguez
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - María Lucía Cattaneo Moreyra
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - Emilia Huber
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - Natalia Carolina Gareis
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - Lucas Etchevers
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - Hugo Héctor Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - Natalia Raquel Salvetti
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - Florencia Rey
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Facultad de Ciencias Veterinarias del Litoral, Universidad Nacional del Litoral (UNL), Esperanza, Santa Fe, Argentina.
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Chankeaw W, Lignier S, Richard C, Ntallaris T, Raliou M, Guo Y, Plassard D, Bevilacqua C, Sandra O, Andersson G, Humblot P, Charpigny G. Analysis of the transcriptome of bovine endometrial cells isolated by laser micro-dissection (1): specific signatures of stromal, glandular and luminal epithelial cells. BMC Genomics 2021; 22:451. [PMID: 34139994 PMCID: PMC8212485 DOI: 10.1186/s12864-021-07712-0] [Citation(s) in RCA: 10] [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: 06/17/2020] [Accepted: 04/11/2021] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND A number of studies have examined mRNA expression profiles of bovine endometrium at estrus and around the peri-implantation period of pregnancy. However, to date, these studies have been performed on the whole endometrium which is a complex tissue. Consequently, the knowledge of cell-specific gene expression, when analysis performed with whole endometrium, is still weak and obviously limits the relevance of the results of gene expression studies. Thus, the aim of this study was to characterize specific transcriptome of the three main cell-types of the bovine endometrium at day-15 of the estrus cycle. RESULTS In the RNA-Seq analysis, the number of expressed genes detected over 10 transcripts per million was 6622, 7814 and 8242 for LE, GE and ST respectively. ST expressed exclusively 1236 genes while only 551 transcripts were specific to the GE and 330 specific to LE. For ST, over-represented biological processes included many regulation processes and response to stimulus, cell communication and cell adhesion, extracellular matrix organization as well as developmental process. For GE, cilium organization, cilium movement, protein localization to cilium and microtubule-based process were the only four main biological processes enriched. For LE, over-represented biological processes were enzyme linked receptor protein signaling pathway, cell-substrate adhesion and circulatory system process. CONCLUSION The data show that each endometrial cell-type has a distinct molecular signature and provide a significantly improved overview on the biological process supported by specific cell-types. The most interesting result is that stromal cells express more genes than the two epithelial types and are associated with a greater number of pathways and ontology terms.
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Affiliation(s)
- Wiruntita Chankeaw
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
- Faculty of Veterinary Science, Rajamangala University of Technolgy Srivijaya (RUTS), Thungyai, Nakhon si thammarat, 80240, Thailand
| | - Sandra Lignier
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Christophe Richard
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Theodoros Ntallaris
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
| | - Mariam Raliou
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Yongzhi Guo
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
| | - Damien Plassard
- GenomEast Platform CERBM GIE, IGBMC, 67404, Illkirch, Cedex, France
| | - Claudia Bevilacqua
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy en Josas, France
| | - Olivier Sandra
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France
| | - Göran Andersson
- Department of Animal Breeding and Genetics, Molecular Genetics, Swedish University of Agricultural Sciences, SLU, PO Box 7023, 750 07, Uppsala, Sweden
| | - Patrice Humblot
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
| | - Gilles Charpigny
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France.
- Department of Animal Breeding and Genetics, Molecular Genetics, Swedish University of Agricultural Sciences, SLU, PO Box 7023, 750 07, Uppsala, Sweden.
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Endriß KJ, Meyerholz MM, Fischbach T, Brimmers L, Pfarrer C, Marth CD, Schmicke M. In vitro effects of Type I interferons (IFNτ and IFNα) on bovine hepatocytes cultured with or without Kupffer cells. Reprod Fertil Dev 2021; 33:305-317. [PMID: 33573713 DOI: 10.1071/rd20278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/17/2020] [Indexed: 12/12/2022] Open
Abstract
In cattle, maternal recognition of early pregnancy depends on the effects of the embryonic signal interferon (IFN)-τ. IFN-stimulated genes have been upregulated in the maternal liver during early pregnancy. In this study, primary hepatocyte cell culture models were evaluated for their suitability to test Type I IFN effects invitro. The expression of target genes (interferon-stimulated gene 15 (ISG-15), interferon-induced GTP-binding protein (MX-1), C-X-C motif chemokine 10 (CXCL-10), CXCL-5, insulin-like growth factor 1 (IGF-1), IGF binding protein 2 (IGFBP-2)) was measured using reverse transcription-quantitative polymerase chain reaction in hepatocytes from monoculture or in indirect coculture with Kupffer cells (HKCid) on Days 1, 2, 3 and 4 of culture (n=21 donor cows). Gene expression was also measured on Day 4 after challenging the cultures with recombinant IFNτ, IFNα, progesterone (P4), IFNτ+IFNα or IFNτ+P4 for 6h. A significant increase in the mRNA expression of target genes in hepatocytes was shown in response to stimulation with IFNτ. The Kupffer cells in coculture did not influence the effects of IFNτ in hepatocytes. In conclusion, primary bovine hepatocyte cultures are suitable for stimulation experiments with Type I IFNs and as an extrauterine model for embryo-maternal communication. The proposed endocrine action of IFNτ in the liver may affect maternal metabolism and immune function in the liver.
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Affiliation(s)
- Kai Josef Endriß
- University of Veterinary Medicine Hanover, Clinic for Cattle, Endocrinology, Bischofsholer Damm 15, 30539 Hanover, Germany
| | - Marie Margarete Meyerholz
- Clinic for Ruminants with Ambulatory and Herd Health Services, Centre for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Sonnenstraße 16, 85764 Oberschleißheim, Germany
| | - Teresa Fischbach
- University of Veterinary Medicine Hanover, Clinic for Cattle, Endocrinology, Bischofsholer Damm 15, 30539 Hanover, Germany
| | - Lutz Brimmers
- University of Veterinary Medicine Hanover, Clinic for Cattle, Endocrinology, Bischofsholer Damm 15, 30539 Hanover, Germany
| | - Christiane Pfarrer
- University of Veterinary Medicine Hanover, Anatomy, Bischofsholer Damm 15, 30539 Hanover, Germany
| | - Christina Deborah Marth
- Melbourne Veterinary School, The University of Melbourne, 250 Princes Highway, Werribee, Vic. 3030, Australia
| | - Marion Schmicke
- University of Veterinary Medicine Hanover, Clinic for Cattle, Endocrinology, Bischofsholer Damm 15, 30539 Hanover, Germany; and Martin-Luther University Halle-Wittenberg, Faculty of Natural Sciences III, Institute of Agricultural and Nutritional Sciences, Animal Health Management, Theodor-Lieser-Straße 11, 06120 Halle, Germany; and Corresponding author.
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6
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Tkachenko OY, Wolf S, Lawson MS, Ting AY, Rodrigues JK, Xu F, Bishop CV, Stouffer RL, Xu J. Insulin-like growth factor 2 is produced by antral follicles and promotes preantral follicle development in macaques†. Biol Reprod 2020; 104:602-610. [PMID: 33348377 DOI: 10.1093/biolre/ioaa227] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/16/2020] [Accepted: 12/14/2020] [Indexed: 12/22/2022] Open
Abstract
Insulin-like growth factors (IGFs) are known for their involvement in endocrine and paracrine regulation of ovarian function. Although IGF2 is the predominant circulating and intraovarian form of IGFs in primate species, the stage-specific follicular expression, action, and regulation of IGF2 are not well defined. Therefore, experiments were conducted to investigate the follicular IGF production in response to steroid hormone regulation and the direct IGF actions on follicular development and function in vitro. Preantral follicles were isolated from rhesus macaque ovaries and cultured to the antral stage in media supplemented with follicle-stimulating hormone and insulin. Follicles were randomly assigned to treatment groups: (a) control, (b) trilostane (a steroid synthesis inhibitor), (c) trilostane + estradiol, (d) trilostane + progesterone, and (e) trilostane + dihydrotestosterone. Media was analyzed for IGF concentrations, which were correlated to follicle growth. Follicles produced IGF2, but not IGF1, at the antral stage. Steroid depletion decreased, whereas steroid replacement increased, IGF2 production by antral follicles. Media IGF2 levels correlated positively with antral follicle diameters. Macaque preantral follicles and granulosa cells were subsequently cultured without (control) and with recombinant human IGF2 supplementation. Follicle survival, growth, and paracrine factor production, as well as granulosa cell proliferation and gonadotropin receptor gene expression, were assessed. IGF2 addition increased follicle survival rates, diameters and inhibin B production, as well as granulosa cell proliferation. These data demonstrate that IGF2 produced by antral follicles, in response to steroid hormone regulation, could act as a paracrine factor that positively impacts preantral follicle development and function in primates.
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Affiliation(s)
- Olena Y Tkachenko
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA
| | - Shally Wolf
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA
| | - Maralee S Lawson
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA
| | - Alison Y Ting
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA
| | - Jhenifer K Rodrigues
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA
| | - Fuhua Xu
- Department of Obstetrics and Gynecology, School of Medicine, Oregon Health & Science University, OR, USA
| | - Cecily V Bishop
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA.,Department of Animal and Rangeland Sciences, College of Agriculture, Oregon State University, OR, USA
| | - Richard L Stouffer
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA.,Department of Obstetrics and Gynecology, School of Medicine, Oregon Health & Science University, OR, USA
| | - Jing Xu
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, OR, USA.,Department of Obstetrics and Gynecology, School of Medicine, Oregon Health & Science University, OR, USA
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Pandey Y, Pooja AR, Devi HL, Jalmeria NS, Punetha M, Kumar S, Paul A, Kumar K, Sonawane A, Samad HA, Singh G, Bag S, Sarkar M, Chouhan VS. Expression and functional role of IGFs during early pregnancy in placenta of water buffalo. Theriogenology 2020; 161:313-331. [PMID: 33373934 DOI: 10.1016/j.theriogenology.2020.12.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 01/16/2023]
Abstract
Adequate vascularisation is a key factor for successful fetal development. We hypothesized that Insulin-Like Growth Factor (IGF) family members regulate angiogenesis along with promoting fetal development and growth. In this experiment, we determined the expression and functional role of IGF family in placental compartments (caruncle; CAR, cotyledon; COT) during different stages of early pregnancy in the water buffalo (Bubalus bubalis). Samples were collected from early pregnancy 1 (EP1, 28-45 days), early pregnancy 2 (EP2, 45-90 days), and third stage of estrous cycle (11-16 days), which was taken as control. In addition, the role of IGF1 on mRNA expression of vWF, StAR, CYP11A1, 3βHSD, PCNA, and BAX were elucidated in cultured trophoblast cells (TCC) obtained from EP2. Quantitative real-time PCR (q-PCR), westernblot, and immunohistochemistry were done to investigate the gene expression, protein expression, and localization of examined factors, and RIA was also done to assess progesterone (P4) concentration. Expression of IGFs, its receptors and binding proteins were found to be significantly higher (p < 0.05) in both CAR and COT as compared to control during early pregnancy, except binding proteins IGFBP1, 3 and 4 which were significantly (p < 0.05) downregulated in COT with advancement of pregnancy. mRNA expression was consistent with the findings of immunoblotting and immunolocalization experiments. Trophoblasts cell culture (TCC) study showed a significant time and dose-dependent effect of IGF1 onsteroidogenic transcript, which was found to be maximum at 100 ng/ml that paralleled with P4 accretion in the media (p < 0.05). Further, IGF1 upregulated the transcripts of vWF, PCNA, and downregulated BAX at the same concentration (p < 0.05). Overall, our results demonstrated that the expression of IGFs is a site-specific phenomenon in placentome, which indicates autocrine/paracrine and endocrine function. Our in-vitro finding support that IGF1 plays a critical role in placental development by promoting angiogenesis, steroid synthesis, and cell proliferation during early pregnancy.
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Affiliation(s)
- Y Pandey
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - A R Pooja
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - H Lakshmi Devi
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - N Singh Jalmeria
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Meeti Punetha
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - S Kumar
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - A Paul
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - K Kumar
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - Arvind Sonawane
- Animal Genetics Division, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - H A Samad
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - G Singh
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - S Bag
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - M Sarkar
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India
| | - V S Chouhan
- Physiology & Climatology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243122, India.
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8
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Melo-Baez B, Wong YS, Aguilera CJ, Cabezas J, Mançanares ACF, Riadi G, Castro FO, Rodriguez-Alvarez L. MicroRNAs from Extracellular Vesicles Secreted by Bovine Embryos as Early Biomarkers of Developmental Competence. Int J Mol Sci 2020; 21:ijms21238888. [PMID: 33255183 PMCID: PMC7727673 DOI: 10.3390/ijms21238888] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 12/17/2022] Open
Abstract
During early development, embryos secrete extracellular vesicles (EVs) that participate in embryo–maternal communication. Among other molecules, EVs carry microRNAs (miRNAs) that interfere with gene expression in target cells; miRNAs participate in embryo–maternal communication. Embryo selection based on secreted miRNAs may have an impact on bovine breeding programs. This research aimed to evaluate the size, concentration, and miRNA content of EVs secreted by bovine embryos with different developmental potential, during the compaction period (days 3.5–5). Individual culture media from in vitro–produced embryos were collected at day 5, while embryos were further cultured and classified at day 7, as G1 (conditioned-culture media by embryos arrested in the 8–16-cells stage) and G2 (conditioned-culture media by embryos that reached blastocyst stages at day 7). Collected nanoparticles from embryo conditioned culture media were cataloged as EVs by their morphology and the presence of classical molecular markers. Size and concentration of EVs from G1 were higher than EVs secreted by G2. We identified 95 miRNAs; bta-miR-103, bta-miR-502a, bta-miR-100, and bta-miR-1 were upregulated in G1, whereas bta-miR-92a, bta-miR-140, bta-miR-2285a, and bta-miR-222 were downregulated. The most significant upregulated pathways were fatty acid biosynthesis and metabolism, lysine degradation, gap junction, and signaling pathways regulating pluripotency of stem cells. The characteristics of EVs secreted by bovine embryos during the compaction period vary according to embryo competence. Embryos that reach the blastocyst stage secrete fewer and smaller vesicles. Furthermore, the loading of specific miRNAs into the EVs depends on embryo developmental competence.
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Affiliation(s)
- Bárbara Melo-Baez
- Laboratory of Animal Biotechnology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Mendez 595, Chillan 3780000, Chile; (B.M.-B.); (Y.S.W.); (C.J.A.); (J.C.); (A.C.F.M.); (F.O.C.)
| | - Yat S. Wong
- Laboratory of Animal Biotechnology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Mendez 595, Chillan 3780000, Chile; (B.M.-B.); (Y.S.W.); (C.J.A.); (J.C.); (A.C.F.M.); (F.O.C.)
| | - Constanza J. Aguilera
- Laboratory of Animal Biotechnology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Mendez 595, Chillan 3780000, Chile; (B.M.-B.); (Y.S.W.); (C.J.A.); (J.C.); (A.C.F.M.); (F.O.C.)
| | - Joel Cabezas
- Laboratory of Animal Biotechnology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Mendez 595, Chillan 3780000, Chile; (B.M.-B.); (Y.S.W.); (C.J.A.); (J.C.); (A.C.F.M.); (F.O.C.)
| | - Ana C. F. Mançanares
- Laboratory of Animal Biotechnology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Mendez 595, Chillan 3780000, Chile; (B.M.-B.); (Y.S.W.); (C.J.A.); (J.C.); (A.C.F.M.); (F.O.C.)
| | - Gonzalo Riadi
- ANID-Millennium Science Initiative Program Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Center for Bioinformatics, Simulation and Modeling, CBSM, Department of Bioinformatics, Faculty of Engineering, Campus Talca, University of Talca, Talca 3460000, Chile;
| | - Fidel O. Castro
- Laboratory of Animal Biotechnology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Mendez 595, Chillan 3780000, Chile; (B.M.-B.); (Y.S.W.); (C.J.A.); (J.C.); (A.C.F.M.); (F.O.C.)
| | - Lleretny Rodriguez-Alvarez
- Laboratory of Animal Biotechnology, Department of Animal Science, Faculty of Veterinary Sciences, Universidad de Concepción, Av. Vicente Mendez 595, Chillan 3780000, Chile; (B.M.-B.); (Y.S.W.); (C.J.A.); (J.C.); (A.C.F.M.); (F.O.C.)
- Correspondence: ; Tel.: +56-242208835
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9
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Muhammad T, Li M, Wang J, Huang T, Zhao S, Zhao H, Liu H, Chen ZJ. Roles of insulin-like growth factor II in regulating female reproductive physiology. SCIENCE CHINA-LIFE SCIENCES 2020; 63:849-865. [PMID: 32291558 DOI: 10.1007/s11427-019-1646-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 03/12/2020] [Indexed: 12/20/2022]
Abstract
The number of growth factors involved in female fertility has been extensively studied, but reluctance to add essential growth factors in culture media has limited progress in optimizing embryonic growth and implantation outcomes, a situation that has ultimately led to reduced pregnancy outcomes. Insulin-like growth factor II (IGF-II) is the most intricately regulated of all known reproduction-related growth factors characterized to date, and is perhaps the predominant growth factor in human ovarian follicles. This review aims to concisely summarize what is known about the role of IGF-II in follicular development, oocyte maturation, embryonic development, implantation success, placentation, fetal growth, and in reducing placental cell apoptosis, as well as present strategies that use growth factors in culture systems to improve the developmental potential of oocytes and embryos in different species. Synthesizing the present knowledge about the physiological roles of IGF-II in follicular development, oocyte maturation, and early embryonic development should, on the one hand, deepen our overall understanding of the potential beneficial effects of growth factors in female reproduction and on the other hand support development (optimization) of improved outcomes for assisted reproductive technologies.
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Affiliation(s)
- Tahir Muhammad
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China
| | - Mengjing Li
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China
| | - Jianfeng Wang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China
| | - Tao Huang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China
| | - Shigang Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China
| | - Han Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China.,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China.,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China
| | - Hongbin Liu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China. .,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China. .,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China.
| | - Zi-Jiang Chen
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China. .,National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, 250012, China. .,Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, 250012, China. .,Shandong Provincial Clinical Medicine Research Center for Reproductive Health, Shandong University, Jinan, 250012, China. .,Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, 200000, China. .,Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200000, China.
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10
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Panigrahi M, Kumar H, Sah V, Dillipkumar Verma A, Bhushan B, Parida S. Transcriptome profiling of buffalo endometrium reveals molecular signature distinct to early pregnancy. Gene 2020; 743:144614. [PMID: 32222532 DOI: 10.1016/j.gene.2020.144614] [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: 10/17/2019] [Revised: 03/22/2020] [Accepted: 03/23/2020] [Indexed: 12/18/2022]
Abstract
Buffalo reproduction struggles with a high incidence of early embryonic mortality. Effective treatment and prevention strategies for this condition are not available due to lack of understanding of molecular pathways in early pregnancy of this species. In the present study, we have attempted to understand these molecular pathways by characterizing the endometrial transcriptomic profiles of pregnant buffalos during early pregnancy. For the transcriptome profiling, buffalo endometrial tissues of 29-36 days of pregnancy and of nonpregnant luteal phase were collected from the local slaughterhouse. We confirmed the status of pregnancy based on the crown vertebral length of the foetus. Total RNA was isolated and sequencing was performed using the Illumina nextseq platform. The raw reads were filtered and mapped to the Bos taurus UMD 3.1 reference genome assembly. An average of 24,597 genes was investigated for differential expression between the two groups. Transcriptome data identified a total of 450 differentially expressed genes (using a cut off value of log2 fold changes >2 and <-2) in early pregnancy in comparison to the nonpregnant group (Padj < 0.05). Among these, 270 genes were significantly upregulated and 180 genes were downregulated. The most impacted pathways were related to secretion, transport, ionic homeostasis, mitosis and negative regulation of viral processes. In conclusion, our study characterized a unique set of DEGs, during the early pregnancy of buffalo, which potentially modulate the endometrial environment to establish and maintain a successful pregnancy.
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Affiliation(s)
- Manjit Panigrahi
- Division of Animal Genetics, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, UP, India
| | - Harshit Kumar
- Division of Animal Genetics, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, UP, India
| | - Vaishali Sah
- Division of Animal Genetics, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, UP, India
| | - Ankita Dillipkumar Verma
- Division of Animal Genetics, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, UP, India
| | - Bharat Bhushan
- Division of Animal Genetics, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, UP, India
| | - Subhashree Parida
- Division of Pharmacology & Toxicology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, UP, India.
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11
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The Role of Endocannabinoid System Based on mRNA Expression During the Late Luteal Phase and Estrus in the Bovine Endometrium. ANNALS OF ANIMAL SCIENCE 2019. [DOI: 10.2478/aoas-2019-0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
There are several findings indicating that the endocannabinoid system (ECS) is an important factor, acting in multiple ways in regulating reproductive function but changes of this system in the bovine endometrium have rarely been investigated; therefore, this study was designed to consider an association between endometrial ECS expression and different stages of the estrous cycles. MRNA expressions of the ECS were investigated during the late luteal phase and estrus using real-time PCR. Following estrous synchronization of sixteen Holstein dairy cows (34±1.3 kg/day of milk production), using two PGF2α injections given 14 days apart, at 30 and 44 days in milk (DIM), blood samples and ultrasonography (US) were performed every other day from the day of second PGF2α injection (44 DIM) until the start of the next estrous cycle (67±2 DIM) to verify CL development and ovulation. Based on blood and US results endometrial tissue was collected on days 16 (late luteal phase) and 21 (estrus) of the synchronized estrous cycle (ovulation = d 0). Real-time PCR analysis of ECS mRNA expression revealed endocannabinoid receptor (CNR2), diacylglycerol lipase (DAGL), cyclooxygenase-2 (COX-2), fatty acid amide hydrolase (FAAH) and monoglyceride lipase (MGLL) had significant fold differences when comparing two different stages of the estrous cycle (late luteal phase vs. estrus). CNR2 and DAGL showed 2.01 and 2.57 fold increase, respectively (P=0.04 and P=0.02), in estrous cows. Among the analyzed genes FAAH (P=0.01) and MGLL (P=0.02) were significantly down-regulated in estrous cows, with a 5.01- and 2.44-fold difference in mRNA expression, respectively. Overall, this study highlights an association between the expression of the ECS in the bovine endometrium and stage of the estrous cycle.
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12
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Müller C, Zidek LM, Ackermann T, de Jong T, Liu P, Kliche V, Zaini MA, Kortman G, Harkema L, Verbeek DS, Tuckermann JP, von Maltzahn J, de Bruin A, Guryev V, Wang ZQ, Calkhoven CF. Reduced expression of C/EBPβ-LIP extends health and lifespan in mice. eLife 2018; 7:34985. [PMID: 29708496 PMCID: PMC5986274 DOI: 10.7554/elife.34985] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/27/2018] [Indexed: 02/06/2023] Open
Abstract
Ageing is associated with physical decline and the development of age-related diseases such as metabolic disorders and cancer. Few conditions are known that attenuate the adverse effects of ageing, including calorie restriction (CR) and reduced signalling through the mechanistic target of rapamycin complex 1 (mTORC1) pathway. Synthesis of the metabolic transcription factor C/EBPβ-LIP is stimulated by mTORC1, which critically depends on a short upstream open reading frame (uORF) in the Cebpb-mRNA. Here, we describe that reduced C/EBPβ-LIP expression due to genetic ablation of the uORF delays the development of age-associated phenotypes in mice. Moreover, female C/EBPβΔuORF mice display an extended lifespan. Since LIP levels increase upon aging in wild type mice, our data reveal an important role for C/EBPβ in the aging process and suggest that restriction of LIP expression sustains health and fitness. Thus, therapeutic strategies targeting C/EBPβ-LIP may offer new possibilities to treat age-related diseases and to prolong healthspan. The risks of major diseases including type II diabetes, cancer and Alzheimer’s are linked to the biological process of ageing. By finding ways to slow ageing, we can help more people to live longer healthier lives while avoiding these illnesses. Placing some animals on a diet that contains only two-thirds as many calories as they would normally eat can improve their fitness during old age and delay the onset of many age-related problems. It is unrealistic to expect people to control their diet to this extent, yet there may be other ways to bring about the same effects. Calorie restriction affects the activity of many different genes; for example, it causes a gene that produces a protein known as Liver-enriched Inhibitory Protein (LIP for short) to shut down. LIP controls the activity of many genes involved in metabolism, so it could be a key target for drugs to control ageing. Müller, Zidek et al. used mice that are unable to produce LIP to study this protein’s effect on ageing. The life expectancy of female mice lacking LIP increased by up to 20%. These mice were leaner, fitter, more resistant to cancer, had stronger immune systems and controlled their blood sugar levels better than normal mice. Male mice that lacked LIP did not live longer but did experience some ageing-related benefits. Genetic analysis also showed that gene activity particularly of metabolic genes is more robust in old female LIP-deficient mice and thus more similar to young control mice than old control mice. The results presented by Müller, Zidek et al. suggest that targeting the activity of the LIP gene could help to slow the ageing process. It is not yet clear whether shutting off LIP has similar beneficial effects in humans. Further research is also needed to investigate why female mice gain more benefits from a lack of LIP than males do.
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Affiliation(s)
- Christine Müller
- European Research Institute for the Biology of Ageing, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands.,Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Laura M Zidek
- Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Tobias Ackermann
- European Research Institute for the Biology of Ageing, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Tristan de Jong
- European Research Institute for the Biology of Ageing, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Peng Liu
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | - Verena Kliche
- Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Mohamad Amr Zaini
- European Research Institute for the Biology of Ageing, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Gertrud Kortman
- European Research Institute for the Biology of Ageing, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Liesbeth Harkema
- Dutch Molecular Pathology Centre, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - Dineke S Verbeek
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jan P Tuckermann
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany
| | | | - Alain de Bruin
- Dutch Molecular Pathology Centre, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands.,Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Victor Guryev
- European Research Institute for the Biology of Ageing, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Zhao-Qi Wang
- Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
| | - Cornelis F Calkhoven
- European Research Institute for the Biology of Ageing, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands.,Leibniz Institute on Aging - Fritz Lipmann Institute, Jena, Germany
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13
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Mense K, Heidekorn-Dettmer J, Wirthgen E, Brockelmann Y, Bortfeldt R, Peter S, Jung M, Höflich C, Hoeflich A, Schmicke M. Increased Concentrations of Insulin-Like Growth Factor Binding Protein (IGFBP)-2, IGFBP-3, and IGFBP-4 Are Associated With Fetal Mortality in Pregnant Cows. Front Endocrinol (Lausanne) 2018; 9:310. [PMID: 29946296 PMCID: PMC6006986 DOI: 10.3389/fendo.2018.00310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/24/2018] [Indexed: 12/14/2022] Open
Abstract
Insulin-like growth factors (IGFs) play a critical role in fetal growth, and components of the IGF system have been associated with fetal growth restriction in women. In human pregnancy, the proteolytic cleavage of insulin-like growth factor binding proteins (IGFBPs), particularly IGFBP-4, releases free IGF for respective action at the tissue level. The aim of the present study was to determine IGFBP-2, IGFBP-3, and IGFBP-4 concentrations by Western ligand blotting during pregnancy until day 100 in cows and to compare these concentrations with those of non-pregnant cows and cows undergoing embryonic/fetal mortality. Therefore, two study trials (I and II) and an in vitro study were conducted. In study I, 43 cows were not pregnant, 34 cows were pregnant, and 4 cows were undergoing fm. In study II, 500 cows were examined, and 7 cases of pregnancy loss between days 24-27 and 34-37 after artificial insemination (AI, late embryonic mortality; em) and 8 cases of pregnancy loss between days 34-37 and 54-57 after AI (late embryonic mortality and early fetal mortality; em/fm) were defined from the analyses of 30 pregnant and 20 non-pregnant cows randomly selected for insulin-like growth factor 1 and IGFBP analyses. In vitro serum from pregnant (n = 3) and non-pregnant (n = 3) cows spiked after incubation with recombinant human (rh) IGFBP-4 for 24 h, and IGFBP-4 levels were analyzed before and after incubation to detect proteolytic degradation. The IGFBP-2, -3, and -4 concentrations did not decline during early pregnancy in cows, while IGFBP-4 concentrations were comparable between pregnant and non-pregnant cows, irrespective of low proteolytic activity, which was also demonstrated in cows. Interestingly, cows with em or fm showed distinct IGFBP patterns. The IGFBP-2 and -3 concentrations were higher (P < 0.05) in cows with fm compared to pregnant. The IGFBP-4 levels were significantly higher in cows developing fm. Thus, distinct differences in the circulating IGFBP concentrations could be associated with late embryonic and early fetal losses in cattle.
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Affiliation(s)
- Kirsten Mense
- Institute for the Reproduction of Farm Animals Schoenow, Bernau, Germany
| | - Julia Heidekorn-Dettmer
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Elisa Wirthgen
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Yette Brockelmann
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Ralf Bortfeldt
- Institute for the Reproduction of Farm Animals Schoenow, Bernau, Germany
| | - Sarah Peter
- Institute for the Reproduction of Farm Animals Schoenow, Bernau, Germany
| | - Markus Jung
- Institute for the Reproduction of Farm Animals Schoenow, Bernau, Germany
| | | | - Andreas Hoeflich
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Marion Schmicke
- Clinic for Cattle, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
- *Correspondence: Marion Schmicke,
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14
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Fermin LM, Pain SJ, Gedye KR, Morel PCH, Kenyon PR, Blair HT. Timing of exogenous progesterone administration is critical for embryo development and uterine gene expression in an ovine model of maternal constraint. Reprod Fertil Dev 2018; 30:1699-1712. [DOI: 10.1071/rd17514] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 05/14/2018] [Indexed: 01/08/2023] Open
Abstract
Progesterone (P4) administration in early pregnancy enhances embryo growth in sheep but is associated with decreased embryo survival. This study examined the effects of exogenous P4 administered during specific time periods between pregnancy Day 0 and Day 6 to determine the critical time point for advancement of embryo growth without pregnancy loss and to examine Day 6 and Day 19 endometrial gene expression. Suffolk (S) embryos were transferred into Cheviot (C) ewes that received exogenous P4 (CP4) on Days 0–3 (CP40–3), Days 0–6 (CP40–6), Days 2–4 (CP42–4) or Days 3–6 (CP43–6). Additionally, S embryos were transferred to C and S ewes that did not receive P4 (CnP4 and SnP4). Day 19 embryos from CP4 ewes were longer (P < 0.05) than those from CnP4 ewes. CP42–4 ewes had embryos of similar size to those of CP40–3 and CP40–6 ewes but had higher pregnancy rates. There was altered expression of genes associated with embryo implantation and histotroph production: diacylglycerol-O-acyltransferase (DGAT2), hepatocyte growth factor (HGF) and prostaglandin endoperoxide synthase 2 (PTSG2) on Day 6 and endometrial galectin 15 (LGALS15) and mucin glycoprotein 1 (MUC1) on Day 19. This suggests that specific timing of P4 administration is critical to the enhanced embryo growth and survival observed. These findings provide a platform for further investigation aimed at advancing embryo development and survival.
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15
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Fermin LM, Pain SJ, Morel PCH, Gedye KR, Kenyon PR, Blair HT. Effect of exogenous progesterone on embryo size and ewe uterine gene expression in an ovine 'dam size' model of maternal constraint. Reprod Fertil Dev 2017; 30:766-778. [PMID: 29157356 DOI: 10.1071/rd17096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 10/15/2017] [Indexed: 12/29/2022] Open
Abstract
Progesterone (P4), acting via its receptor, regulates uterine function and histotroph production, which are crucial to embryo growth. This study aimed to examine exogenous P4 effects on embryo size and differential endometrial gene expression at Day 19 of gestation using a 'dam size' sheep model of maternal constraint. Purebred Suffolk (S, genotypically large) embryos were transferred into recipient groups of Cheviot (C, genotypically small) or Suffolk ewes that had, or had not, been pre-treated with P4 from Days 0 to 6 of pregnancy. At Day 19S embryos were collected from four experimental groups: P4 pretreated S ewes (SP4; n=5), untreated S ewes (SnP4; n=15), P4 pretreated C ewes (CP4; n=7) and untreated C ewes (CnP4; n=21). Day-19 embryos from CP4 ewes were larger (P<0.05) than those from CnP4 ewes and similar in size (P>0.05) to embryos from SnP4 and SP4 ewes. Expression of mucin 1 (MUC1) and prostaglandin-endoperoxide synthase 2 (PTGS2) was upregulated in uterine horns ipsilateral to the corpus luteum from CP4 ewes. Prostaglandin receptor (PGR), MUC1 and PTGS2 expression was upregulated, whilst cathepsin L (CTSL) and radical S-adenosyl methionine domain-containing 2 (RSAD2) expression was downregulated in the ipsilateral horn of SP4 ewes. This suggests that pretreating ewes with exogenous P4 may alleviate early pregnancy maternal constraint via mechanisms that alter uterine function. However, further research is required to investigate the timing of P4 administration and its impact on conception rates.
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Affiliation(s)
- Lisanne M Fermin
- Institute of Veterinary and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North, 4442, New Zealand
| | - Sarah J Pain
- Institute of Veterinary and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North, 4442, New Zealand
| | - Patrick C H Morel
- Institute of Veterinary and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North, 4442, New Zealand
| | - Kristene R Gedye
- Institute of Veterinary and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North, 4442, New Zealand
| | - Paul R Kenyon
- Institute of Veterinary and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North, 4442, New Zealand
| | - Hugh T Blair
- Institute of Veterinary and Biomedical Sciences, Massey University, Private Bag 11-222, Palmerston North, 4442, New Zealand
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16
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Astessiano AL, Carriquiry M, Mattiauda DA, Adrien ML, Chilibroste P, Meikle A. Endometrial gene expression in primiparous dairy cows at the end of the voluntary waiting period is affected by nutrition: Total mixed ration vs increasing levels of herbage allowance. Reprod Domest Anim 2017; 52:798-805. [PMID: 28406532 DOI: 10.1111/rda.12981] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 03/08/2017] [Indexed: 12/01/2022]
Abstract
The study postulated that differential nutritional management during the early lactation period would be reflected in endometrial expression of genes related to embryo growth at the end of the voluntary waiting period. Thus, the effect of the combined use of total mixed ration (TMR) and grazing under different herbage allowances during the first 75 days post-partum (DPP) on endometrial gene expression was evaluated in primiparous dairy cows. Cows were blocked by body weight, age and body condition score and randomly assigned to three grazing treatments: high (HA, 30 kg DM per cow per day), medium (MA, 15 kg DM per cow per day) and low (LA, 7.5 kg DM per cow per day) herbage allowance (mixed pasture, 2,600 kg DM per ha) plus 8 kg DM of supplement or TMR (55% forage, 45% concentrate) fed ad libitum (TMR) from calving to 75 DPP. At 57 DPP, cows were synchronized for oestrus (day 0, 68 DPP) and at day 7, endometrial biopsies were obtained. The nutritional treatment did not affect insulin, IGF-1 and leptin concentrations on days 0, 4 or 7. Expression of IGF1, IGFBP3, IGFBP4, ADIPOR1 and ADIPOR2 mRNA was significantly affected by the nutritional treatment. Endometrial IGF1 and IGFBP4 mRNA were twofold greater in TMR and HA than MA and LA cows. Expression of IGFBP3 and ADIPOR1 mRNAs was greater in TMR and HA than MA cows, but did not differ from LA cows. All groups had greater expression of ADIPOR2 mRNA than MA cows. This study provided solid evidence of the importance of nutritional management during early lactation on uterine environment at the end of the voluntary waiting period. The greater expression of genes related to embryo growth and uterine function (IGF system, progesterone and adiponectin receptors) in cows fed diets maximizing energy intake suggests a favourable environment for embryonic growth, which may explain the improved reproductive performance of cows in good energy balance.
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Affiliation(s)
- A L Astessiano
- School of Agronomy, Universidad de la República, Montevideo, Uruguay
| | - M Carriquiry
- School of Agronomy, Universidad de la República, Montevideo, Uruguay
| | - D A Mattiauda
- School of Agronomy, Universidad de la República, Montevideo, Uruguay
| | - M L Adrien
- School of Veterinary Medicine, Universidad de la República, Montevideo, Uruguay
| | - P Chilibroste
- School of Agronomy, Universidad de la República, Montevideo, Uruguay
| | - A Meikle
- School of Veterinary Medicine, Universidad de la República, Montevideo, Uruguay
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17
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Wilson ML, McCoski SR, Geiger AJ, Akers RM, Johnson SE, Ealy AD. The influence of postnatal nutrition on reproductive tract and endometrial gland development in dairy calves. J Dairy Sci 2017; 100:3243-3256. [DOI: 10.3168/jds.2016-11880] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/19/2016] [Indexed: 12/21/2022]
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18
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Meyerholz MM, Mense K, Lietzau M, Kassens A, Linden M, Knaack H, Wirthgen E, Hoeflich A, Raliou M, Richard C, Sandra O, Schuberth HJ, Hoedemaker M, Schmicke M. Serum IGFBP4 concentration decreased in dairy heifers towards day 18 of pregnancy. J Vet Sci 2016; 16:413-21. [PMID: 26243597 PMCID: PMC4701733 DOI: 10.4142/jvs.2015.16.4.413] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 04/22/2015] [Accepted: 07/03/2015] [Indexed: 01/01/2023] Open
Abstract
This study was conducted to determine if the main components of the somatotropic axis change during the early phase of pregnancy in the maternal blood system and whether differences exist on day 18 after pregnancy recognition by the maternal organism. Blood samples of pregnant heifers (Holstein Friesian; n = 10 after embryo transfer) were obtained on the day of ovulation (day 0), as well as on days 7, 14, 16 and 18 and during pregnant, non-pregnant and negative control cycles. The oncentrations of progesterone (P4), oestrogen, growth hormone (GH), insulin-like growth factor-1 and -2 (IGF1, -2) and IGF-binding protein-2, -3 and -4 (IGFBP2, -3, -4) were measured. The mRNA expressions of growth hormone receptor 1A, IGF1, IGF2, IGFBP2, IGFBP3 and IGFBP4 were detected using RT-qPCR in liver biopsy specimens (day 18). In all groups, total serum IGF1 decreased from day 0 to 16. Notably, IGFBP4 maternal blood concentrations were lower during pregnancy than during non-pregnant cycles and synchronized control cycles. It can be speculated that the lower IGFBP4 in maternal blood may result in an increase of free IGF1 for local action. Further studies regarding IGFBP4 concentration and healthy early pregnancy are warranted.
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Affiliation(s)
- Marie M Meyerholz
- Endocrinology Laboratory, University of Veterinary Medicine, 30173 Hanover, Germany
| | - Kirsten Mense
- Endocrinology Laboratory, University of Veterinary Medicine, 30173 Hanover, Germany
| | - Michael Lietzau
- Clinic for Cattle, University of Veterinary Medicine, 30173 Hanover, Germany
| | - Ana Kassens
- Reproduction Unit, University of Veterinary Medicine, 30173 Hanover, Germany
| | - Matthias Linden
- Faculty of Mathematics and Physics, Leibniz University, 30167 Hanover, Germany
| | - Hendrike Knaack
- Endocrinology Laboratory, University of Veterinary Medicine, 30173 Hanover, Germany
| | | | - Andreas Hoeflich
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, 18196 Dummerstorf, Germany
| | - Mariam Raliou
- National Institute for Agricultural Research, UMR1198 INRA-ENVA, Biologie du Développe et Reproduction, F-78350 Jouy-en-Josas, France
| | - Christophe Richard
- National Institute for Agricultural Research, UMR1198 INRA-ENVA, Biologie du Développe et Reproduction, F-78350 Jouy-en-Josas, France
| | - Olivier Sandra
- National Institute for Agricultural Research, UMR1198 INRA-ENVA, Biologie du Développe et Reproduction, F-78350 Jouy-en-Josas, France
| | | | - Martina Hoedemaker
- Clinic for Cattle, University of Veterinary Medicine, 30173 Hanover, Germany
| | - Marion Schmicke
- Endocrinology Laboratory, University of Veterinary Medicine, 30173 Hanover, Germany
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19
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Crane EM, Munro JC, Bourgon SL, Diel de Amorim M, Ventura R, Fredeen AH, Montanholi YR. Metabolic blood profile of beef heifers during oestrous and non-oestrous states. Reprod Domest Anim 2016; 51:819-26. [PMID: 27554760 DOI: 10.1111/rda.12763] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 07/20/2016] [Indexed: 12/29/2022]
Abstract
Haematological metabolic profiles in heifers could contribute to the development of proxies for oestrous detection and provide clues to further characterize biological changes during oestrus. One hundred and seven beef heifers were observed for oestrous behaviour twice daily for 124 days. Feed intake and productive performance (body weight and composition) traits were measured, and feed efficiency was determined using residual feed intake (kg DM/day). Blood plasma samples were collected when signs of oestrus were observed and every 30 ± 2 days. Heifers were considered in oestrus (n = 71) when plasma progesterone concentrations were <0.6 ng/ml. Least square means of blood metabolic parameters were compared between oestrous and non-oestrous states and within oestrous groups according to performance traits and age. Heifers in oestrus exhibited higher concentrations of alkaline phosphatase, aspartate aminotransferase (AST), beta-hydroxybutyric acid, creatine kinase (CK) and triiodothyronine (T3) than heifers in non-oestrus. Heifers in oestrus revealed lower osmolality and concentrations of calcium, sodium and total protein than during non-oestrus. Younger (and smaller) heifers had greater concentrations of CK, gamma-glutamyl transferase (GGT), glucose and sodium than the older heifers. Heifers with lower fatness had increased osmolality and concentrations of cholesterol, CK, phosphorus, sodium and reduced T3 levels. Feed efficient heifers had greater levels of AST, cholesterol and GGT than inefficient heifers. Blood plasma parameters may be complementary to oestrous detection upon further validation; effects of age, feed efficiency, body size and body composition should be considered to optimize this haematological assessment.
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Affiliation(s)
- E M Crane
- Department of Plant and Animal Sciences, Dalhousie University, Truro, NS, Canada.
| | - J C Munro
- Department of Plant and Animal Sciences, Dalhousie University, Truro, NS, Canada
| | - S L Bourgon
- Department of Plant and Animal Sciences, Dalhousie University, Truro, NS, Canada
| | - M Diel de Amorim
- Department of Health Management, Atlantic Veterinary College, Charlottetown, PE, Canada
| | - R Ventura
- Beef Improvement Opportunities, Elora, ON, Canada
| | - A H Fredeen
- Department of Plant and Animal Sciences, Dalhousie University, Truro, NS, Canada
| | - Y R Montanholi
- Department of Plant and Animal Sciences, Dalhousie University, Truro, NS, Canada.
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20
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da Silva JM, Giachetto PF, da Silva LO, Cintra LC, Paiva SR, Yamagishi MEB, Caetano AR. Genome-wide copy number variation (CNV) detection in Nelore cattle reveals highly frequent variants in genome regions harboring QTLs affecting production traits. BMC Genomics 2016; 17:454. [PMID: 27297173 PMCID: PMC4907077 DOI: 10.1186/s12864-016-2752-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 05/19/2016] [Indexed: 11/10/2022] Open
Abstract
Background Copy number variations (CNVs) have been shown to account for substantial portions of observed genomic variation and have been associated with qualitative and quantitative traits and the onset of disease in a number of species. Information from high-resolution studies to detect, characterize and estimate population-specific variant frequencies will facilitate the incorporation of CNVs in genomic studies to identify genes affecting traits of importance. Results Genome-wide CNVs were detected in high-density single nucleotide polymorphism (SNP) genotyping data from 1,717 Nelore (Bos indicus) cattle, and in NGS data from eight key ancestral bulls. A total of 68,007 and 12,786 distinct CNVs were observed, respectively. Cross-comparisons of results obtained for the eight resequenced animals revealed that 92 % of the CNVs were observed in both datasets, while 62 % of all detected CNVs were observed to overlap with previously validated cattle copy number variant regions (CNVRs). Observed CNVs were used for obtaining breed-specific CNV frequencies and identification of CNVRs, which were subsequently used for gene annotation. A total of 688 of the detected CNVRs were observed to overlap with 286 non-redundant QTLs associated with important production traits in cattle. All of 34 CNVs previously reported to be associated with milk production traits in Holsteins were also observed in Nelore cattle. Comparisons of estimated frequencies of these CNVs in the two breeds revealed 14, 13, 6 and 14 regions in high (>20 %), low (<20 %) and divergent (NEL > HOL, NEL < HOL) frequencies, respectively. Conclusions Obtained results significantly enriched the bovine CNV map and enabled the identification of variants that are potentially associated with traits under selection in Nelore cattle, particularly in genome regions harboring QTLs affecting production traits. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-2752-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Joaquim Manoel da Silva
- Faculdade de Ciências Agrárias, Biológicas e Sociais Aplicadas, Universidade do Estado de Mato Grosso (UNEMAT), Av. Prof Dr. Renato Figueiro Varella, CEP 78.690-000, Nova Xavantina, Mato Grosso, Brazil.,Programa de Pós-Graduação em Genética e Biologia Molecular-Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Poliana Fernanda Giachetto
- Embrapa Informática Agropecuária - Laboratório Multiusuário de Bioinformática (LMB), Campinas, São Paulo, Brazil
| | | | - Leandro Carrijo Cintra
- Embrapa Informática Agropecuária - Laboratório Multiusuário de Bioinformática (LMB), Campinas, São Paulo, Brazil
| | - Samuel Rezende Paiva
- Embrapa - Secretaria de Relações Internacionais, Brasília, Distrito Federal, Brazil.,Embrapa Recursos Genéticos e Biotecnologia, Brasília, Distrito Federal, Brazil.,CNPq Fellow, ᅟ, ᅟ
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21
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Gregson E, Webb R, Sheldrick EL, Campbell BK, Mann GE, Liddell S, Sinclair KD. Molecular determinants of a competent bovine corpus luteum: first- vs final-wave dominant follicles. Reproduction 2016; 151:563-75. [PMID: 26940100 DOI: 10.1530/rep-15-0415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 03/03/2016] [Indexed: 11/08/2022]
Abstract
Reproductive management in cattle requires the synchrony of follicle development and oestrus before insemination. However, ovulation of follicles that have not undergone normal physiological maturation can lead to suboptimal luteal function. Here, we investigated the expression of a targeted set of 47 genes in (a) a first-wave vs final-wave dominant follicle (DF; the latter destined to ovulate spontaneously) and (b) 6-day-old corpora lutea (CLs) following either spontaneous ovulation or induced ovulation of a first-wave DF to ascertain their functional significance for competent CL development. Both the mass and progesterone-synthesising capacity of a CL formed following induced ovulation of a first-wave DF were impaired. These impaired CLs had reduced expression of steroidogenic enzymes (e.g. STAR and HSD3B1), luteotrophic receptors (LHCGR) and angiogenic regulators (e.g. VEGFA) and increased expression of BMP2 (linked to luteolysis). Relative to final-wave DFs, characteristic features of first-wave DFs included reduced oestradiol concentrations and a reduced oestradiol:progesterone ratio in the face of increased expression of key steroidogenic enzymes (i.e. CYP11A1, HSD3B1 and CYP19A1) in granulosa cells and reduced expression of the HDL receptor SCARB1 in thecal cells. Transcripts for further components of the TGF and IGF systems (e.g. INHA, INHBA, IGF2R and IGFBP2) varied between the first- and final-wave DFs. These results highlight the importance of hormones such as progesterone interacting with local components of both the TGF and IGF systems to affect the maturation of the ovulatory follicle and functional competency of the subsequent CL.
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Affiliation(s)
- E Gregson
- School of BiosciencesUniversity of Nottingham, Loughborough, UK
| | - R Webb
- School of BiosciencesUniversity of Nottingham, Loughborough, UK
| | - E L Sheldrick
- School of BiosciencesUniversity of Nottingham, Loughborough, UK
| | - B K Campbell
- School of Clinical SciencesUniversity of Nottingham, Nottingham, UK
| | - G E Mann
- School of BiosciencesUniversity of Nottingham, Loughborough, UK
| | - S Liddell
- School of BiosciencesUniversity of Nottingham, Loughborough, UK
| | - K D Sinclair
- School of BiosciencesUniversity of Nottingham, Loughborough, UK
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22
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Killeen AP, Diskin MG, Morris DG, Kenny DA, Waters SM. Endometrial gene expression in high- and low-fertility heifers in the late luteal phase of the estrous cycle and a comparison with midluteal gene expression. Physiol Genomics 2016; 48:306-19. [PMID: 26850042 DOI: 10.1152/physiolgenomics.00042.2015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 02/02/2016] [Indexed: 12/27/2022] Open
Abstract
Embryonic mortality is a major constraint to improving reproductive efficiency and profitability in livestock enterprises. We previously reported differential expression of genes with identified roles in cellular growth and proliferation, lipid metabolism, endometrial remodeling, inflammation, angiogenesis, and metabolic exchange in endometrial tissue on day 7 of the estrous cycle (D7), between heifers ranked as either high (HF) or low (LF) for fertility. The aim of the current study was to further elucidate the underlying molecular mechanisms contributing to early embryo loss by examining differential endometrial gene expression in HF or LF heifers at a later stage of the estrous cycle;day 14(D14). A second objective was to compare these expression profiles with those from midluteal HF and LF endometrium. Using the same animal model as employed in the previous study, we slaughtered HF and LF animals on D14, harvested endometrial tissue, and carried out global gene expression analysis using the Affymetrix Bovine GeneChip. Microarray analysis detected 430 differentially expressed genes (DEG) between HF and LF animals. Ingenuity Pathway Analysis revealed enrichment for a host of biological pathways including lipid metabolism, molecular transport, immune response, cell morphology and development, and cell growth and proliferation. Important DEG includedALB, BMPR2, CCL28, COL4A3/4, FADS1, ITGA6, LDLR, PLCB3, PPARG, PTGS2, and SLC27A4 Furthermore, DEG expressed on both D7 and D14 included:PCCB,SLC25A24,DAP, and COL4A4 This study highlights some of the pathways and mechanisms underpinning late luteal bovine endometrial physiology and endometrial-related conception rate variance.
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Affiliation(s)
- Aideen P Killeen
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Grange, County Meath, Ireland; School of Agriculture, Food Science and Veterinary Medicine, College of Life Sciences, University College Dublin, Belfield, Dublin, Ireland; and
| | - Michael G Diskin
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Mellows Campus, Athenry, County Galway, Ireland
| | - Dermot G Morris
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Mellows Campus, Athenry, County Galway, Ireland
| | - David A Kenny
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Grange, County Meath, Ireland
| | - Sinéad M Waters
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Grange, County Meath, Ireland;
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23
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Valdez-Morales FJ, Gamboa-Domínguez A, Vital-Reyes VS, Cruz JCH, Chimal-Monroy J, Franco-Murillo Y, Cerbón M. Changes in receptivity epithelial cell markers of endometrium after ovarian stimulation treatments: its role during implantation window. Reprod Health 2015; 12:45. [PMID: 25981399 PMCID: PMC4443517 DOI: 10.1186/s12978-015-0034-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/30/2015] [Indexed: 01/04/2023] Open
Abstract
Background To compare the expression of receptivity markers in epithelial and stromal cells in the endometrium of ovulatory women and infertile with hypothalamic pituitary dysfunction (HPD), untreated or treated with clomiphene citrate (CC), or with recombinant follicle stimulating hormone (rFSH). Methods Twelve control ovulatory and 32 anovulatory women, 22 of whom received ovulation induction with CC (n = 12) or rFSH (n = 10). Endometrial biopsies were obtained during the mid-secretory phase. Hormonal secretion was measured by chemiluminescence immunoassay, endometrial dating and cellular expression and distribution of receptivity proteins were evaluated by quantitative immunohistochemistry. Results CC or rFSH treatments, modified the expression of epithelial receptivity markers, such as Glycodelin A, beta-catenin, CD166/ALCAM and IGF-1R, but not in stromal markers. Also, a change in their cell distribution was observed. Conclusions Treatment of infertile women with HPD modified the expression and distribution of receptivity markers in the mid-secretory phase of the endometrium in epithelial but not stromal cells, which can help to explain changes in the receptivity of the endometrium during treatments and suggest an important role of these cells in the receptivity window. Electronic supplementary material The online version of this article (doi:10.1186/s12978-015-0034-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Francisco J Valdez-Morales
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, México, D.F., Mexico.
| | - Armando Gamboa-Domínguez
- Departamento de Patología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México, D.F., Mexico.
| | - Victor S Vital-Reyes
- Departamento de Biología de la Reproducción, Hospital de Ginecología y Obstetricia # 3, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, México, D.F., Mexico.
| | - Juan C Hinojosa Cruz
- Departamento de Biología de la Reproducción, Hospital de Ginecología y Obstetricia # 3, Centro Médico Nacional La Raza, Instituto Mexicano del Seguro Social, México, D.F., Mexico.
| | - Jesús Chimal-Monroy
- Departamento de Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, UNAM, México, D.F., Mexico. .,Instituto Nacional de Perinatología, México, D.F., Mexico.
| | - Yanira Franco-Murillo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, México, D.F., Mexico.
| | - Marco Cerbón
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, México, D.F., Mexico.
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24
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Mirzaei A, Sharifiyazdi H, Ahmadi MR, Ararooti T, Ghasrodashti AR, Kadivar A. The effect of polymorphism in gene of insulin-like growth factor-I on the serum periparturient concentration in Holstein dairy cows. Asian Pac J Trop Biomed 2015; 2:765-9. [PMID: 23569844 DOI: 10.1016/s2221-1691(12)60226-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 04/08/2012] [Accepted: 05/10/2012] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE To investigate the relationship between polymorphism within the 5'-untranslated region (5'-UTR) of IGF-I gene and its periparturient concentration in Iranian Holstein dairy cows. METHODS Blood samples (5 mL, n = 37) were collected by caudal venipuncture from each animal into sample tubes containing the EDTA and DNA was extracted from blood. In order to measure IGF-I concentration the collection of blood samples (n = 111) was also done at 14 d before calving (prepartum), 25 and 45 d postpartum. RESULTS We found evidence for a significant effect of C to T mutation in position 512 of IGF-I gene on its serum concentration in dairy cows in Iran. Cows with CC genotype had significantly higher concentration (Mean±SD) of IGF-I at 14 d prepartum (91.8±18.1) µg/L compared to those with TT genotype (73.3±14.4) µg/L (P=0.04). A significant trend (quadratic) was found for IGF-I concentration, as higher in CC cows compared to ones with TT genotype, during the 14 d before calving to 45 d postpartum (P=0.01). CONCLUSIONS We concluded that C/T transition in the promoter region of IGF-I gene can influence the serum concentration of IGF-I in periparturient dairy cows.
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Affiliation(s)
- A Mirzaei
- Department of Clinical Science, School of Veterinary Medicine, Shiraz University, Shiraz 71345, Iran
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25
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Costello LM, O'Boyle P, Diskin MG, Hynes AC, Morris DG. Insulin-like growth factor and insulin-like growth factor-binding proteins in the bovine uterus throughout the oestrous cycle. Reprod Fertil Dev 2014; 26:599-608. [PMID: 23607981 DOI: 10.1071/rd13105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 03/30/2013] [Indexed: 11/23/2022] Open
Abstract
The aims of the present study were to assess several components of the insulin-like growth factor (IGF) system in bovine uterine flushings across different days of the oestrous cycle and to examine the relationship between the IGF system and systemic progesterone concentrations. Uterine flushings and plasma were collected from cows on Days 3, 7, 11 and 15 of the oestrous cycle. The IGF-1 concentration was more than 5-fold higher in the uterus compared with plasma on Days 7 and 11 of the cycle, with values similar on Days 3 and 15. Similarly, uterine concentrations of IGF-binding protein (IGFBP)-2 and IGFBP-3 were up to 10- and 4-fold higher than in plasma, respectively, suggesting synthesis and/or transportation of the IGFBPs into the uterus. In addition, concentrations of IGFBP-2 and IGFBP-3 were higher in the uterine horns, ipsilateral to the corpus luteum, on Day 15. This difference could indicate a local controlling mechanism with progesterone possibly playing a role in regulating the concentration of IGFBPs between the uterine horns. There was no significant relationship between systemic progesterone concentrations and IGFBP concentrations on Day 7 of the oestrous cycle. The present study shows that uterine concentrations of IGFBPs are cycle stage specific and also suggests IGF-dependent and -independent functions for IGFBPs during a time of major change in the developing embryo.
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Affiliation(s)
- Lisa M Costello
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Mellows Campus, Athenry, Co. Galway, Ireland
| | - Padraic O'Boyle
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Mellows Campus, Athenry, Co. Galway, Ireland
| | - Michael G Diskin
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Mellows Campus, Athenry, Co. Galway, Ireland
| | - Ailish C Hynes
- Department of Physiology, National University of Ireland, Galway, University Road, Co. Galway, Ireland
| | - Dermot G Morris
- Animal and Bioscience Research Department, Animal & Grassland Research and Innovation Centre, Teagasc, Mellows Campus, Athenry, Co. Galway, Ireland
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26
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Carvalho AV, Reinaud P, Forde N, Healey GD, Eozenou C, Giraud-Delville C, Mansouri-Attia N, Gall L, Richard C, Lonergan P, Sheldon IM, Lea RG, Sandra O. SOCS genes expression during physiological and perturbed implantation in bovine endometrium. Reproduction 2014; 148:545-57. [PMID: 25187621 DOI: 10.1530/rep-14-0214] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In mammals, suppressor of cytokine signalling (CISH, SOCS1 to SOCS7) factors control signalling pathways involved in the regulation of numerous physiological processes including pregnancy. In order to gain new insights into the biological functions of SOCS in the endometrium, a comprehensive analysis of SOCS gene expression was carried out in bovine caruncular (CAR) and intercaruncular (ICAR) tissues collected i) during the oestrous cycle, ii) at the time of maternal recognition of pregnancy and at implantation in inseminated females, iii) following uterine interferon-tau (IFNT) infusion at day 14 post-oestrus, iv) following a period of controlled intravaginal progesterone release and v) following transfer of embryos by somatic-cell nuclear transfer (SCNT). The regulatory effects of IFNT on in vitro cultured epithelial and stromal cells were also examined. Altogether, our data showed that CISH, SOCS4, SOCS5 and SOCS7 mRNA levels were poorly affected during luteolysis and pregnancy. In contrast, SOCS1, SOCS2, SOCS3 and SOCS6 mRNA levels were strongly up-regulated at implantation (day 20 of pregnancy). Experimental in vitro and in vivo models demonstrated that only CISH, SOCS1, SOCS2 and SOCS3 were IFNT-induced genes. Immunohistochemistry showed an intense SOCS3 and SOCS6 staining in the nucleus of luminal and glandular epithelium and of stromal cells of pregnant endometrium. Finally, SOCS3 expression was significantly increased in SCNT pregnancies in keeping with the altered immune function previously reported in this model of compromised implantation. Collectively, our data suggest that spatio-temporal changes in endometrial SOCS gene expression reflect the acquisition of receptivity, maternal recognition of pregnancy and implantation.
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Affiliation(s)
- A Vitorino Carvalho
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - P Reinaud
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - N Forde
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - G D Healey
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - C Eozenou
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - C Giraud-Delville
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - N Mansouri-Attia
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - L Gall
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - C Richard
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - P Lonergan
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - I M Sheldon
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - R G Lea
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
| | - O Sandra
- INRAUMR1198 Biologie du Développement et Reproduction, F-78350 Jouy-en-Josas, FranceSchool of Agriculture and Food ScienceUniversity College Dublin, Dublin, IrelandCentre for Reproductive ImmunologyInstitute of Life Science, College of Medicine, Swansea University, Swansea SA28PP, UKDepartment of Pathology and ImmunologyBaylor College of Medicine, Houston, Texas, USASchool of Veterinary Medicine and ScienceUniversity of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, Leicestershire, UK
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Killeen AP, Morris DG, Kenny DA, Mullen MP, Diskin MG, Waters SM. Global gene expression in endometrium of high and low fertility heifers during the mid-luteal phase of the estrous cycle. BMC Genomics 2014; 15:234. [PMID: 24669966 PMCID: PMC3986929 DOI: 10.1186/1471-2164-15-234] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 03/14/2014] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND In both beef and dairy cattle, the majority of early embryo loss occurs within the first 14 days following insemination. During this time-period, embryos are completely dependent on their maternal uterine environment for development, growth and ultimately survival, therefore an optimum uterine environment is critical to their survival. The objective of this study was to investigate whether differences in endometrial gene expression during the mid-luteal phase of the estrous cycle exist between crossbred beef heifers ranked as either high (HF) or low fertility (LF) (following four rounds of artificial insemination (AI)) using the Affymetrix® 23 K Bovine Gene Chip. RESULTS Conception rates for each of the four rounds of AI were within a normal range: 70-73.3%. Microarray analysis of endometrial tissue collected on day 7 of the estrous cycle detected 419 differentially expressed genes (DEG) between HF (n = 6) and LF (n = 6) animals. The main gene pathways affected were, cellular growth and proliferation, angiogenesis, lipid metabolism, cellular and tissue morphology and development, inflammation and metabolic exchange. DEG included, FST, SLC45A2, MMP19, FADS1 and GALNT6. CONCLUSIONS This study highlights, some of the molecular mechanisms potentially controlling uterine endometrial function during the mid-luteal phase of the estrous cycle, which may contribute to uterine endometrial mediated impaired fertility in cattle. Differentially expressed genes are potential candidate genes for the identification of genetic variation influencing cow fertility, which may be incorporated into future breeding programmes.
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Affiliation(s)
| | | | | | | | | | - Sinéad M Waters
- Teagasc, Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Grange, Dunsany, County Meath, Ireland.
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Walsh SW, Matthews D, Browne JA, Forde N, Crowe MA, Mihm M, Diskin M, Evans ACO. Acute dietary restriction in heifers alters expression of genes regulating exposure and response to gonadotrophins and IGF in dominant follicles. Anim Reprod Sci 2012; 133:43-51. [PMID: 22771244 DOI: 10.1016/j.anireprosci.2012.06.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 06/07/2012] [Accepted: 06/15/2012] [Indexed: 10/28/2022]
Abstract
Dietary restriction in growing cattle and severe negative energy balance in lactating cows have been associated with altered gonadotropin secretion, reduced follicle diameter, reduced circulating oestradiol concentrations and anovulation. Therefore, we hypothesised that acute dietary restriction would influence the fate and function of the dominant follicle by altering the expression for genes regulating gonadotrophin and IGF response in ovarian follicles. Newly selected dominant follicles were collected 7-8 days after prostaglandin F(2α) (PGF) administration from heifers (n=25) that were individually fed a diet supplying 1.2 maintenance (M; control, n=8) or 0.4 M (restricted, n=17) for a total duration of 18-19 days. Heifers within 0.4 M were ovulatory (n=11) or anovulatory (n=6) depending on whether the dominant follicle present at PGF ovulated or became atretic following luteolysis. Control animals were all ovulatory. Acute dietary restriction decreased IGF-I (P<0.001) and insulin (P<0.05) in circulation; oestradiol (P<0.01) and IGF-I (P<0.01) in follicular fluid; and mRNA for FSHR (P<0.01) in granulosa cells but increased mRNA for IGFBP2 (P<0.05) in theca cells of the newly selected dominant follicle. However, this only led to anovulation when dietary restriction also decreased mRNA for CYP19A1 (P<0.05), IGF2 (P<0.01) and IGF1R (P<0.05) in granulosa cells and LHCGR (P<0.05) in theca cells of follicles collected from heifers fed 0.4 M. These results suggest that the catabolic environment induced by dietary restriction may ultimately cause anovulation by reducing oestradiol synthesis, FSH-responsiveness and IGF signaling in granulosa, and LH-responsiveness in theca cells of dominant follicles.
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Affiliation(s)
- S W Walsh
- School of Agriculture and Food Science, University College Dublin, Belfield, Ireland
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