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Manta MW, da Silva EP, Feltrin SR, Prante AL, Aires KDV, de Andrade LG, da Silva AP, Amaral CDS, Wink LM, Portela VM, Antoniazzi AQ. Human Chorionic Gonadotrophin (hCG) induces changes in IFN-pathway and Interferon-Stimulated Genes (ISGs) on the bovine endometrium at Day 18 of pregnancy. Anim Reprod 2024; 21:e20230130. [PMID: 38562608 PMCID: PMC10984569 DOI: 10.1590/1984-3143-ar2023-0130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/20/2024] [Indexed: 04/04/2024] Open
Abstract
We hypothesized that the hCG modulates the expression of IFNT-pathway and ISGs in bovine endometrium during early pregnancy. The aim of the current study is to evaluate the effect of hCG on IFNT-pathway signals and ISGs expression in endometrial cells. For this, 29 non-lactating cross-bread cows were used in the study and submitted to a 9-day fixed-time artificial insemination (FTAI) protocol. The day of the AI was considered Day 0 (D0), and five days (D5) after the FTAI, the cows were allocated into two groups: Control and hCG group, when a hCG group received a single dose of 2.500UI of hCG. On day 18 after FTAI (D18) cows were slaughtered and endometrial tissue samples were collected. There was no difference between the embryo recovery rate of the cows in C compared to the hCG. The hCG group increased the accessory corpus luteum formation rate. The hCG resulted in greater serum progesterone concentration in the hCG group compared to the C on Day 14. Only the expression of IFNAR2 and STAT1 were upregulated on pregnant cows of the hCG group compared to the C group. The pathway genes (JAK1, STAT2, and IRF9) were not regulated. The mRNA abundance of ISG15, MX1, MX2, and OAS1 was upregulated in pregnant cows for hCG group, compared to C group. The results show that the administration of hCG, 5 days after AI, in addition to increasing the serum progesterone, modulates the expression of IFNT-pathway and ISGs on bovine endometrium on Day 18 of pregnancy.
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Affiliation(s)
- Manuela Wolker Manta
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Eduardo Pradebon da Silva
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Suzana Rossato Feltrin
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Amanda Luiza Prante
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Karine de Vargas Aires
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Leonardo Guedes de Andrade
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Ana Paula da Silva
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Carolina dos Santos Amaral
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | | | - Valério Marques Portela
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
| | - Alfredo Quites Antoniazzi
- Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
- Programa de Pós-graduação em Medicina Veterinária, Universidade Federal de Santa Maria - UFSM, Santa Maria, RS, Brasil
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Domingues RR, Andrade JPN, Cunha TO, Madureira G, Hoppman AS, Teixeira NN, Monteiro PLJ, Gomez-Leon VH, Martins JPN, Wiltbank MC. Profiles of interferon-stimulated genes in multiple tissues and circulating pregnancy-associated glycoproteins and their association with pregnancy loss in dairy cows†. Biol Reprod 2024; 110:558-568. [PMID: 38079518 DOI: 10.1093/biolre/ioad164] [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: 06/28/2023] [Revised: 10/22/2023] [Accepted: 11/27/2023] [Indexed: 03/16/2024] Open
Abstract
Pregnancy loss (PL) in lactating dairy cows disrupts reproductive and productive efficiency. We evaluated the expression of interferon-stimulated genes (ISG) in blood leukocytes, vaginal and cervical epithelial cells, luteolysis-related genes, progesterone, and pregnancy-associated glycoprotein (PAG) profiles in lactating dairy cows (n = 86) to gain insight about PL. Expression of ISG on d17, d19, and d21 was greater in cows that maintained the pregnancy (P33) compared to nonpregnant with no PL (NP). Greater ISG differences between groups were observed in the cervix (96.7-fold) than vagina (31.0-fold), and least in blood leukocytes (5.6-fold). Based on individual profiles of ISG and PAG, PL was determined to occur either before (~13%) or after (~25%) d22. For cows with PL before d22, ISG expression was similar on d17 but by d21 was lower and OXTR was greater than P33 cows and similar to NP; timing of luteolysis was similar compared to NP cows suggesting embryonic failure to promote luteal maintenance and to attach to the endometrium (no increase in PAG). For cows with PL after d22, ISG expression was similar to P33 cows on d17, d19, and d21 and luteolysis, when it occurred, was later than NP cows; delayed increase in PAG suggested later or inadequate embryonic attachment. In conclusion, PL before d22 occurred due to embryonic demise/failure to signal for luteal maintenance, as reflected in reduced ISG expression by d21. Alternatively, embryos with PL between d22 and 33 adequately signaled for luteal maintenance (ISG) but had delayed/inadequate embryonic attachment and/or inappropriate luteolysis causing PL.
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Affiliation(s)
- Rafael R Domingues
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Endocrinology and Reproductive Physiology Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Joao Paulo N Andrade
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Thiago O Cunha
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Guilherme Madureira
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - August S Hoppman
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Natalia N Teixeira
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Pedro L J Monteiro
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Victor H Gomez-Leon
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Animal Sciences and Industry, Kansas State University, Manhattan, Kansas, USA
| | - Joao Paulo N Martins
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Milo C Wiltbank
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Endocrinology and Reproductive Physiology Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Yoshino H, Kizaki K, Hirata TI, Iga K, Matsuda H, Yamanouchi T, Hashiyada Y, Imai K, Ishiguro-Oonuma T, Kanazawa T, Takahashi T, Hashizume K. Interferon-Stimulated Gene Expression in Peripheral Blood Leucocytes as a Convenient Prediction Marker for Embryo Status in Embryo-Transferred Japanese Black Cows during the Peri-Implantation Period. Vet Sci 2023; 10:408. [PMID: 37505814 PMCID: PMC10386093 DOI: 10.3390/vetsci10070408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/29/2023] Open
Abstract
Pregnancy diagnosis during early gestation is important for cattle reproduction. The expression of interferon-stimulated genes (ISGs) in peripheral blood leukocytes (PBLs) was studied in embryo-transferred (ET) Japanese Black cattle. ISGs in PBLs-ISG15, MX1, MX2, and OAS1-were detected in multiple ovulation ET cattle using a real-time quantitative polymerase chain reaction, and receiver operating characteristic (ROC) curve analysis was performed. Gestational status was predicted using the average ISG levels during the normal estrous cycle (AVE) and the Youden index from the ROC curve analysis as cutoff values. The ISG15, MX1, and MX2 levels were significantly higher in pregnant cattle (n = 10) than in non-pregnant cattle (n = 23) on gestation day 21, whereas the levels of all ISGs were similar between non-pregnant and non-pregnant cattle with late embryonic death (n = 7). ISG15, MX1, and MX2 appropriately predicted the gestational status of ET cows. The statistical evaluation of the diagnostic accuracy in ET cows on day 21 of gestation presented higher values of sensitivity, specificity, accuracy, and positive predictive values of ISG15, MX1, and MX2 using the Youden index than using the AVE. Therefore, ISG15, MX1, and MX2 are excellent biomarkers of gestational status during the peri-implantation period in ET cattle.
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Affiliation(s)
- Hitomi Yoshino
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Iwate, Japan
| | - Keiichiro Kizaki
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Iwate, Japan
| | - Toh-Ichi Hirata
- Field Science Center, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Iwate, Japan
| | - Kosuke Iga
- Tohoku Agricultural Research Center, National Agriculture and Food Research Organization, 4 Akahira, Shimo-kuriyagawa, Morioka 020-0198, Iwate, Japan
| | - Hideo Matsuda
- National Livestock Breeding Center, Nishigo 961-8061, Fukushima, Japan
| | | | - Yutaka Hashiyada
- National Livestock Breeding Center, Nishigo 961-8061, Fukushima, Japan
| | - Kei Imai
- Department of Sustainable Agriculture, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu 069-8501, Hokkaido, Japan
| | - Toshina Ishiguro-Oonuma
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Iwate, Japan
| | - Tomomi Kanazawa
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Iwate, Japan
| | - Toru Takahashi
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Iwate, Japan
| | - Kazuyoshi Hashizume
- Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Iwate, Japan
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Interferon Tau (IFNt) and Interferon-Stimulated Genes (ISGs) Expression in Peripheral Blood Leukocytes and Correlation with Circulating Pregnancy-Associated Glycoproteins (PAGs) during Peri-Implantation and Early Pregnancy in Buffalo Cows. Animals (Basel) 2022; 12:ani12223068. [PMID: 36428296 PMCID: PMC9686730 DOI: 10.3390/ani12223068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
Abstract
The objective of this study was to analyze interferon-stimulated genes (ISGs) and interferon tau (IFNt) gene expression in peripheral blood leukocytes during the peri-implantation period and until 40 days of pregnancy in buffalo cows. Relationships were also examined between the expression of ISGs and IFNt and pregnancy-associated glycoproteins (PAGs) peripheral plasma concentration. Buffalo cows were synchronized and artificially inseminated (d 0). Blood samples were collected on days 0, 18, 28 and 40 after artificial insemination (AI) for peripheral blood mononuclear cells (PBMCs) and polymorphonuclear leukocytes (PMNs) isolation and PAGs radioimmunoassay analysis. The study was carried out on 21 buffalo cows divided ex post into Pregnant (n = 12) and Non-pregnant (n = 9) groups. Steady state levels of OAS1, MX2, ISG15 and IFNt mRNA were measured by RT-qPCR and their estimated marginal means (p < 0.01 for all) were higher in pregnant than non-pregnant buffaloes, both in PBMCs and PMNs. In PBMCs, pairwise comparisons showed that OAS1 and MX2 expressions differed between pregnant and non-pregnant buffaloes on all the days of observation (p < 0.001), while significant differences in ISG15 and IFNt started from day 28 post-AI (p < 0.05). In PMNs, ISG15 expression differed between groups only at days 18 and 28 (p < 0.001), while comparisons were always significant for IFNt (p < 0.05). The expression of all genes, except ISG15 as determined in PMNs, was positively associated with PAGs plasma concentrations (p < 0.05). This work showed a significant increase in ISGs and IFNt expressions in PBMCs and PMNs in buffalo during the peri-implantation period and early pregnancy, and their correlation with PAGs plasma concentration.
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KUMARI RAJNI, DAYAL S, SHARMA I, KUMAR S, CHANDRAN PC, DEY A, RAY PK, KAMAL RK, KUMAR JYOTI, SARMA KAMAL. Expression profiling of chemokines CCL8 and CXCL10 during peri-implantation period in Murrah buffaloes as a possible signature of embryonic implantation. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2021. [DOI: 10.56093/ijans.v91i8.115920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The present investigation was aimed to evaluate novel implication of chemokine genes CXCL10 (C-X-C motif chemokine 10) and CCL 8 (C-C motif chemokine 8) genes for use as ideal pregnancy biomarker in dairy buffaloes. We studied expression profile of both these chemokine genes in whole blood of Murrah buffaloes on day 12, 15, 18 and 21 post artificial insemination (AI) using SYBR green chemistry based quantitative real time reverse transcription PCR. Our investigations revealed a consistent increase in transcriptional abundance of CCL8 and CXCL10 genes during this period, although the difference in expression level was not significant between day 15 and 18 post AI for CXCL10 gene. We also studied the effect of parity on the expression profile of these two genes and found that expression level of both these genes is independent of parity status of the animal. Based on the results, it can be concluded that these chemokine genes can be used as early pregnancy biomarker on any day between days 12 to 21 post artificial insemination in buffaloes irrespective of their parity status.
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Melo GD, Pinto LMF, Rocha CC, Motta IG, Silva LA, da Silveira JC, Gonella-Diaza AM, Binelli M, Pugliesi G. Type I interferon receptors and interferon-τ-stimulated genes in peripheral blood mononuclear cells and polymorphonuclear leucocytes during early pregnancy in beef heifers. Reprod Fertil Dev 2021; 32:953-966. [PMID: 32646539 DOI: 10.1071/rd19430] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/12/2020] [Indexed: 01/02/2023] Open
Abstract
This study characterised the expression of interferon (IFN)-τ-stimulated genes (ISGs) and Type I IFN receptors in circulating polymorphonuclear cells (PMNs) of beef heifers and compared it with expression in peripheral blood mononuclear cells (PBMCs) up to Day 20 of gestation. Nelore heifers (n=26) were subjected to fixed-time AI (FTAI) on Day 0. PMNs and PBMCs were isolated on Days 0, 10, 14, 16, 18 and 20 after FTAI. The abundance of target transcripts (ubiquitin-like protein (ISG15), 2'-5'-oligoadenylate synthetase 1 (OAS1), myxovirus resistance 1 (MX1), myxovirus resistance 2 (MX2), IFN receptor I (IFNAR1) and IFN receptor 2 (IFNAR2)) was determined using real-time quantitative polymerase chain reaction and compared between pregnant (n=8) and non-pregnant (n=9) females. In both PBMCs and PMNs, ISG15 and OAS1 expression was greater in pregnant than non-pregnant heifers on Days 18 and 20. There were no significant differences in the expression of ISGs between PBMCs and PMNs. A time effect on expression was found for IFNAR1 in PBMCs and IFNAR2 in PMNs, with decreased expression of both genes on Days 18 and 20. When the expression of these genes was compared between cell types only in pregnant heifers, IFNAR2 expression in PMNs had an earlier decrease when compared to its expression in PBMCs, starting from Day 18. In conclusion, PMNs do not respond earlier to the conceptus stimulus, and ISG15 and OAS1 expression in both PMNs and PBMCs can be used as a suitable marker for pregnancy diagnosis on Days 18 and 20. In addition, gestational status did not affect IFNAR1 and IFNAR2 expression, but IFNAR2 showed a distinct response between PMNs and PBMCs of pregnant heifers.
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Affiliation(s)
- G D Melo
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, Avenida Duque de Caxias Norte, 225, Campus Fernando Costa, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - L M F Pinto
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, Avenida Duque de Caxias Norte, 225, Campus Fernando Costa, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - C C Rocha
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, Avenida Duque de Caxias Norte, 225, Campus Fernando Costa, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - I G Motta
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, Avenida Duque de Caxias Norte, 225, Campus Fernando Costa, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - L A Silva
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, Avenida Duque de Caxias Norte, 225, Campus Fernando Costa, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - J C da Silveira
- Department of Veterinary Medicine, School of Animal Science and Food Engineering, Avenida Duque de Caxias Norte, 225, Campus Fernando Costa, University of São Paulo, 13635-900, Pirassununga, SP, Brazil
| | - A M Gonella-Diaza
- North Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Marianna, 4932 Highway 162, Marianna, FL 32446, USA
| | - M Binelli
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville, FL 32608, USA
| | - G Pugliesi
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, Avenida Duque de Caxias Norte, 225, Campus Fernando Costa, University of São Paulo, 13635-900, Pirassununga, SP, Brazil; and Corresponding author.
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Rocha CC, da Silveira JC, Forde N, Binelli M, Pugliesi G. Conceptus-modulated innate immune function during early pregnancy in ruminants: a review. Anim Reprod 2021; 18:e20200048. [PMID: 34122650 PMCID: PMC8189353 DOI: 10.1590/1984-3143-ar2020-0048] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/16/2021] [Indexed: 11/22/2022] Open
Abstract
This review focuses on the innate immune events modulated by conceptus signaling during early pregnancy in ruminants. Interferon-tau (IFN-τ) plays a role in the recognition of pregnancy in ruminants, which involves more than the inhibition of luteolytic pulses of PGF2α to maintain corpus luteum function. For successful pregnancy establishment, the allogenic conceptus needs to prevent rejection by the female. Therefore, IFN-τ exerts paracrine and endocrine actions to regulate the innate immune system and prevent conceptus rejection. Additionally, other immune regulators work in parallel with IFN-τ, such as the pattern recognition receptors (PRR). These receptors are activated during viral and bacterial infections and in early pregnancy, but it remains unknown whether PPR expression and function are controlled by IFN-τ. Therefore, this review focuses on the main components of the innate immune response that are involved with early pregnancy and their importance to avoid conceptus rejection.
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Affiliation(s)
- Cecilia Constantino Rocha
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Pirassununga, SP, Brasil
| | - Juliano Coelho da Silveira
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brasil
| | - Niamh Forde
- Discovery and Translational Sciences Department, School of Medicine, University of Leeds, Leeds, Yorkshire, United Kingdom
| | - Mario Binelli
- Department of Animal Sciences, University of Florida, Gainesville, FL, USA
| | - Guilherme Pugliesi
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, Pirassununga, SP, Brasil
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Pohler KG, Reese ST, Franco GA, Oliveira RV, Paiva R, Fernandez L, de Melo G, Vasconcelos JLM, Cooke R, Poole RK. New approaches to diagnose and target reproductive failure in cattle. Anim Reprod 2020; 17:e20200057. [PMID: 33029221 PMCID: PMC7534570 DOI: 10.1590/1984-3143-ar2020-0057] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022] Open
Abstract
Reproductive failure and pregnancy loss in cattle are some of the largest economic burdens to cattle producers and one of most perplexing factors influencing management decisions. Pregnancy loss may occur at any point during gestation with the largest percentage of loss occurring in the first 30 days and, subsequently, decreasing as the pregnancy progresses. Losses may be attributed to numerous factors, predisposed issues or environmental conditions such as nutritional stressors or disease. From a research perspective, determining the exact causes of pregnancy loss or embryonic mortality in cattle have been difficult, due to limitations of accurately determining early gestation pregnancy status. Until methods that precisely determine embryo success early in gestation are available, our understanding of in vivo pregnancy loss will lack clarity necessary to develop management strategies to decrease such loss. In this review, we will briefly discuss the pivotal periods of pregnancy loss affecting beef and dairy cattle, methods and technologies to determine pregnancy status and embryo viability and potential opportunities to decrease reproductive failure.
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Affiliation(s)
- Ky Garrett Pohler
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | - Sydney Taylor Reese
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | - Gessica Araujo Franco
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | - Ramiro Vander Oliveira
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | - Rafael Paiva
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | - Lohana Fernandez
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | - Gabriela de Melo
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | | | - Reinaldo Cooke
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
| | - Rebecca Kyle Poole
- Department of Animal Science, Pregnancy and Developmental Programming Area of Excellence, Texas A&M University, College Station, TX, United States
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Panda BSK, Mohapatra SK, Chaudhary D, Alhussien MN, Kapila R, Dang AK. Proteomics and transcriptomics study reveals the utility of ISGs as novel molecules for early pregnancy diagnosis in dairy cows. J Reprod Immunol 2020; 140:103148. [PMID: 32447181 DOI: 10.1016/j.jri.2020.103148] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 04/22/2020] [Accepted: 05/07/2020] [Indexed: 01/10/2023]
Abstract
An early and precise diagnosis of pregnancy in cows is critical to short the calving interval and to improve their reproductive efficiency. Neutrophils are the first blood cells to sensitize the embryo in the uterus and participate in maternal recognition of pregnancy after getting induced by interferon tau (IFNτ). To study the protein abundance ratio, blood samples were collected on 0th, 10th, 18th and 36th day post-artificial insemination (AI) from crossbred Karan Fries cows. Neutrophils were isolated through density gradient centrifugation and studied for protein abundance by high-performance liquid chromatography coupled with mass spectrometry (LC-MS). Protein abundance ratios for Myxovirus resistance (MX1 and MX2) were found to be higher (P < 0.05) on day 10 and day 18 post-AI, whereas Oligoadenylate synthetase-1 (OAS1) and Interferon stimulated gene-15 ubiquitin-like modifier (ISG15) proteins were more abundant on day 18 post-AI. The relative mRNA expressions of these molecules were also studied by qPCR. The gene expression of ISG15, MX1, MX2 and OAS1 was found to be higher (P < 0.05) on day 10th, 18th and 36th post-AI compared to day 0. The study indicates that ISGs on blood neutrophils are essential for the establishment of pregnancy and may be targeted as potential biomarkers for pregnancy diagnosis in cows.
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Affiliation(s)
- Bibhudatta S K Panda
- Lactation and Immuno-Physiology Laboratory, ICAR-National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Sunil Kumar Mohapatra
- Department of Animal Biochemistry, ICAR-National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Dheeraj Chaudhary
- Lactation and Immuno-Physiology Laboratory, ICAR-National Dairy Research Institute, Karnal, Haryana 132001, India
| | | | - Rajeev Kapila
- Department of Animal Biochemistry, ICAR-National Dairy Research Institute, Karnal, Haryana 132001, India
| | - Ajay Kumar Dang
- Lactation and Immuno-Physiology Laboratory, ICAR-National Dairy Research Institute, Karnal, Haryana 132001, India.
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Ott TL. Immunological detection of pregnancy: Evidence for systemic immune modulation during early pregnancy in ruminants. Theriogenology 2020; 150:498-503. [PMID: 32331860 DOI: 10.1016/j.theriogenology.2020.04.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 04/08/2020] [Indexed: 12/28/2022]
Abstract
Mammalian pregnancy creates unique challenges for immune systems highly evolved to detect and eliminate invading pathogens. Recognition of the challenges created by gestating a semi-allogeneic fetus evolved from the discipline of transplantation biology and were informed by studies on the unique natural parabiosis that occurs when female calves are gestated with twin male fetuses. These pregnancies typically result in an intersex female termed a freemartin, which revealed insights into development of the male and female reproductive tracts. However, they also uncovered important clues on immune tolerance with wide-ranging implications to reproductive biology, transplantation biology and autoimmune disease. Many studies focused on identifying mechanisms through which the fetus evades maternal immune detection and elimination. These included studies characterizing immune interactions between the fetus and mother at the nourishing interface of the placenta and uterine endometrium. This immunological forbearance only occurs under high concentrations of circulating progesterone. Beyond the requirement for progesterone, there has been considerable progress towards understanding the effects of conceptus signals on maternal immune function. One common theme is that pregnancy induces a T helper 2 immune bias as shown in several mammalian species, including domestic ruminants. However, a growing body of evidence shows that the fetus not only evades, but also provokes immune responses locally in the uterus and in peripheral tissues. This is perhaps most dramatically illustrated by domestic ruminants where the conceptus secretes a unique interferon in the opening salvo of hormonal communication with the maternal immune system. The role of interferon tau in regulating expression of genes of the innate immune system in the uterus has been extensively studied. More recently, it was determined that these same genes are also induced in peripheral immune cells and other tissues throughout the body. In addition to interferon tau and progesterone, pregnancy associate glycoproteins and chaperonin 10 (aka Early Pregnancy Factor) are implicated in altering immune function both locally and systemically during pregnancy. While it is tempting to speculate that this activation of innate immunity is designed to counteract selective immunosuppression, knowledge of the importance of local and systemic immune activation to the success of pregnancy remains incomplete. This area remains fertile ground for developing better approaches to diagnose and treat infertility in domestic farm species and humans alike.
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Affiliation(s)
- Troy L Ott
- Department of Animal Science, Center for Reproductive Biology and Health, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA.
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11
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Oosthuizen N, Cooke RF, Schubach KM, Fontes PLP, Brandão AP, Oliveira Filho RV, Colombo EA, Franco GA, Reese S, Pohler KG, Lamb GC. Effects of estrous expression and intensity of behavioral estrous symptoms on variables associated with fertility in beef cows treated for fixed-time artificial insemination. Anim Reprod Sci 2020; 214:106308. [PMID: 32087921 DOI: 10.1016/j.anireprosci.2020.106308] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/24/2020] [Accepted: 02/03/2020] [Indexed: 11/16/2022]
Abstract
This experiment was conducted to evaluate effects of estrous expression and intensity of behavioral estrous expression, assessed by evaluating physical activity, on variables associated with fertility in beef cows. The following treatment regimen was imposed on lactating, multiparous cows (n = 273): 100-μg injection of GnRH and an intravaginal progesterone (P4) releasing device (CIDR) administered on d -10, 25-mg injection of prostaglandin F2α at CIDR removal on d -3, and another GnRH injection + fixed-time artificial insemination (TAI) 60-66 h following CIDR removal (d 0). Cows were fitted with a pedometer on d -10, and an estrous detection patch on the tail-head on d -3. Cows were classified as not expressing estrus (NOESTR) or expressing estrus with net physical activity greater (HIESTR) or less than the median (LWESTR). Only data from cows responsive to the estrous synchronization treatment regimen were utilized (NOESTR, n = 119; LWESTR, n = 50; HIESTR, n = 50). Diameter of dominant follicles on d 0 and corpus luteum volume on d 7 were greater in HIESTR compared with LWESTR and NOESTR groups (P < 0.01). Plasma P4 concentrations on d 7 and pregnancy rates to TAI were greater in HIESTR and LWESTR than the NOESTR group (P < 0.01). Hence, if there was estrous expression during the period of the GnRH-based TAI treatment regimen, there were greater pregnancy rates to TAI, whereas when there was greater intensity of behavioral estrous symptoms, there were larger dominant follicles and corpora lutea dimensions but not greater pregnancy rates.
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Affiliation(s)
- Nicola Oosthuizen
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Reinaldo F Cooke
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States.
| | - Kelsey M Schubach
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Pedro L P Fontes
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Alice P Brandão
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Ramiro V Oliveira Filho
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Eduardo A Colombo
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Gessica A Franco
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Sydney Reese
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - Ky G Pohler
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
| | - G Cliff Lamb
- Department of Animal Science, Texas A&M University, College Station, TX, 77843-2471, United States
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Teeli AS, Sheikh PA, Patra MK, Singh D, Kumar B, Kumar H, Singh SK, Verma MR, Krishnaswamy N. Effect of dietary n-3 polyunsaturated rich fish oil supplementation on ovarian function and interferon stimulated genes in the repeat breeding cow. Anim Reprod Sci 2019; 211:106230. [PMID: 31785633 DOI: 10.1016/j.anireprosci.2019.106230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 08/24/2019] [Accepted: 11/06/2019] [Indexed: 12/31/2022]
Abstract
Dietary n-3 polyunsaturated fatty acids (n-3 PUFA) improve utero-ovarian functions and embryonic survival in postpartum dairy cows. Because early embryonic mortality is the major cause of repeat breeding (RB) in cows, there was investigation of the effect of dietary supplementation of n-3 PUFA [eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)] rich fish oil (FO) from -2 to +2 weeks of artificial insemination on the size of preovulatory follicle (POF), serum progesterone (P4) and relative abundance of the mRNA of interferon stimulated genes (ISG) that encode for these proteins in the peripheral blood leukocytes (PBL) in the RB cow (n = 12). The diet of control group was supplemented with palm oil (PO). The results indicated serum concentrations of EPA and DHA were greater by 4.6- and 3.5-fold, respectively at the end of feeding study in the RB cows of the FO group. The diameter of POF was larger by 2.2 mm in FO group; however, serum P4 did not vary from day 14-20 post-artificial insemination. Greater abundance of ISG mRNA transcripts such as ISG15, RTP4, Mx2 and OAS1 in the PBL of pregnant cows of FO group indicates day 20 conceptuses produced more IFN-τ. It is concluded that supplementation of FO during the breeding period increased the size of POF and enhanced the abundance of ISG mRNA transcripts in RB cows that became pregnant.
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Affiliation(s)
- Aamir Salam Teeli
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, U.P., India.
| | - Parveez Ahmad Sheikh
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, U.P., India
| | - Manas Kumar Patra
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, U.P., India
| | - Degpal Singh
- Immunology Section, Indian Veterinary Research Institute, Izatnagar, U.P., India
| | - Brijesh Kumar
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, U.P., India
| | - Harendra Kumar
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, U.P., India
| | - Sanjay Kumar Singh
- Division of Animal Reproduction, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, U.P., India
| | - Med Ram Verma
- Division of Livestock Economics, Statistics and Information Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, U.P., India
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Cooke RF, Pohler KG, Vasconcelos JLM, Cerri RLA. Estrous expression during a fixed-time artificial insemination protocol enhances development and interferon-tau messenger RNA expression in conceptuses from Bos indicus beef cows. Animal 2019; 13:2569-2575. [PMID: 30968808 DOI: 10.1017/s1751731119000636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Expression of estrus (EST) near the time of fixed-time artificial insemination (FTAI) increases pregnancy success in beef females. This outcome has been associated with improved pregnancy establishment and maintenance, although research is still warranted to validate this theory. Hence, this experiment compared ovarian, uterine and conceptus factors associated with pregnancy establishment in Bos indicus beef cows according to estrous expression during a FTAI protocol. One hundred lactating multiparous Nelore cows received a 2 mg injection of estradiol benzoate and an intravaginal progesterone (P4) releasing device on day -11, a 12.5 mg injection of prostaglandin F2α on day -4, P4 device removal in addition to 0.6 mg injection of estradiol cypionate and 300 IU injection of equine chorionic gonadotropin on day -2, and FTAI on day 0. An estrous detection patch was attached to the tailhead of each cow on day -2, and estrous expression was defined as removal of >50% of the rub-off coating from the patch at FTAI. Overall, 39 cows expressed EST, 55 did not express EST (NOEST), and six cows lost their patch and were discarded from the experiment. Ovarian ultrasonography was performed at FTAI, and on days 7 and 15 of the experiment. Blood samples were also collected on days 7 and 15. Only cows without a corpus luteum (CL) on day 0, and with a CL on days 7 and 15 remained in the experiment (EST, n=36; NOEST, n=48). On day 15, cows were randomly selected within each group (EST, n=29; NOEST, n=30) for conceptus collection via transcervical flushing, followed by endometrial biopsy in the uterine horn ipsilateral to the CL. Within cows not assigned to conceptus collection, blood samples were collected for whole blood RNA extraction (day 20) and pregnancy status was verified by transrectal ultrasonography (day 30). Diameter of dominant follicle on day 0 and plasma P4 concentrations on day 7 were greater (P⩽0.02) in EST v. NOEST cows. Conceptus length and messenger RNA (mRNA) expression of prostaglandin E synthase and interferon-tau were greater (P⩽0.04) in EST v. NOEST cows. Moreover, EST cows diagnosed as pregnant on day 30 had greater (P<0.01) blood mRNA expression of myxovirus resistance 2 on day 20 compared with NOEST. In summary, estrous expression near the time of FTAI enhanced pregnancy establishment factors in B. indicus cows, including conceptus development and mRNA expression of interferon-tau.
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Affiliation(s)
- R F Cooke
- Department of Animal Science, Texas A&M University,College Station, TX77845, USA
| | - K G Pohler
- Department of Animal Science, Texas A&M University,College Station, TX77845, USA
| | - J L M Vasconcelos
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu 18168-000, Brazil
| | - R L A Cerri
- Faculty of Land and Food Systems, University of British Columbia,Vancouver, BC, CanadaV6T 1Z4
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14
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Ealy AD, Seekford ZK. Symposium review: Predicting pregnancy loss in dairy cattle. J Dairy Sci 2019; 102:11798-11804. [PMID: 31587904 DOI: 10.3168/jds.2019-17176] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 08/22/2019] [Indexed: 12/20/2022]
Abstract
Several tools exist to diagnose pregnancy in dairy cattle. However, substantial pregnancy loss occurs within the first 60 d of gestation in cattle, and these losses have a profound adverse economic impact on the dairy and beef cattle industries. Detecting these impending pregnancy losses could offer producers an opportunity to reduce costs associated with this source of reproductive inefficiency. Several of the pregnancy diagnostic tools currently available and new technologies are being examined for their ability to predict pregnancies at risk for failing in early pregnancy. This review provides a synopsis of work undertaken recently to predict pregnancy losses in cattle. Currently, opportunities to predict pregnancy loss include (1) using transrectal ultrasonography to detect loss of the fetal heartbeat, floating debris within the placental fluids, and reductions in fetal size; (2) observing reductions in circulating progesterone concentrations; (3) detecting reductions in concentrations of circulating placental products; namely, pregnancy-associated glycoproteins and microRNAs; and (4) detecting reductions in the early pregnancy-dependent increase in interferon-stimulatory gene expression in peripheral blood leukocytes. An achievable goal may be to identify markers of embryo mortality so that researchers and clinicians can focus their efforts on developing intervention strategies for cows identified to be at risk for pregnancy failure.
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Affiliation(s)
- Alan D Ealy
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg 24061.
| | - Zachary K Seekford
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg 24061
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15
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Immune status during postpartum, peri-implantation and early pregnancy in cattle: An updated view. Anim Reprod Sci 2019; 206:1-10. [PMID: 31133358 DOI: 10.1016/j.anireprosci.2019.05.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/25/2019] [Accepted: 05/20/2019] [Indexed: 02/06/2023]
Abstract
Throughout the estrous cycle the mammalian endometrium undergoes morphological and functional changes that are essential for the establishment of pregnancy and proper ovarian and uterine functions. Among these changes, the most important are alterations in both inter- and intracellular signalling molecules, many of which modulate immune processes. In the endometrial tissue there are local innate (nonspecific) and adaptive (specific/acquired) response mechanisms which vary because of the endocrine status during the estrous cycle, pregnancy and postpartum period. Endometrial cells have responses that support the immune system by producing pro-inflammatory factors such as cytokines, sensors, effector molecules and chemokines. This response is important during gestation, pregnancy, and fetal growth, as well as in preventing infection, and immuno-rejection of the semi-allogeneic embryo. In dairy cows, both before and immediately after calving, there are marked changes in the values for hormonal and metabolic variables and the immune status is impaired. Thus, in several studies there has been assessment of the physiological and/or abnormal maternal immune changes and possible effects on dairy cow reproductive performance. The objective with this review is to summarize the novel information about the immune mechanisms involved during the postpartum period, subsequent peri-implantation period and pregnancy in dairy cows, and the possible effects on reproductive performance. This information provides for an enhanced understanding of the local and systemic immune responses associated with the metabolic and hormonal status of dairy cows, and alterations in the immune system of high producing cows and the possible effects on subsequent fertility.
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Cooke RF. Early career achievement award: supplementing omega-6 fatty acids to enhance early embryonic development and pregnancy establishment in Bos indicus and B. taurus beef cows. J Anim Sci 2019; 97:485-495. [PMID: 30351357 DOI: 10.1093/jas/sky414] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/19/2018] [Indexed: 02/04/2023] Open
Abstract
Our research group investigated the impacts of supplementing Ca salts of soybean oil (CSSO), a source of omega-6 fatty acids (FAs), on reproductive performance of beef cows. Initial studies were conducted with Nelore (Bos indicus) cows grazing tropical pastures. Cows were assigned to fixed-time artificial insemination (AI) and supplemented or not with 100 g/d (as-fed basis) of CSSO, and supplementation regimens ranged from days -11 to 28 relative to AI. Overall, CSSO supplementation during the 21 d after AI increased (P < 0.01) pregnancy rates from 38.1% (623/1,635 as pregnant/total nonsupplemented cows) to 49.0% (843/1,720 as pregnant/total CSSO-supplemented cows), and these outcomes were associated with enhanced early embryonic development and pregnancy establishment when omega-6 FA were supplemented. To verify this rationale, our group compared FA incorporation in grazing Nelore cows (n = 90) supplemented or not with CSSO (100 g/d; as-fed basis) beginning at fixed-time AI until slaughter at day 19 of gestation. Supplementing CSSO increased (P ≤ 0.05) incorporation of linoleic acid and its omega-6 derivatives in plasma, endometrium, corpus luteum, and conceptus, whereas the same responses were not observed (P ≥ 0.25) for omega-3 FA. Complementing these findings, grazing Nelore cows (n = 100) were supplemented or not with CSSO (100 g/d; as-fed basis) beginning at fixed-time AI, and assigned to transcervical uterine flush on day 15 of gestation. Supplementing CSSO increased (P ≤ 0.04) conceptus length (2.58 vs. 1.15 cm) and mRNA expression of interferon-tau (4.1-fold increase) and prostaglandin E synthase 2 (2.6-fold increase), which are critical regulators of pregnancy establishment. These outcomes were recently replicated in B. taurus beef cows consuming temperate forages. Pregnancy rates were greater (P = 0.01) in Angus cows receiving CSSO (100 g/d; as-fed basis) for 21 d after fixed-time AI (60.2%; 226/383 as pregnant/total cows) compared with nonsupplemented cows (51.7%; 193/388 as pregnant/total cows). Supplementing CSSO to Angus × Hereford cows (n = 96) beginning after AI also increased (P = 0.05) mRNA expression of interferon-tau in day 15 conceptuses (1.8-fold increase). Collectively, our research demonstrated that post-AI CSSO supplementation favors incorporation of omega-6 FA into maternal and embryonic tissues, which enhances interferon-tau synthesis by the conceptus and increases pregnancy rates to fixed-time AI in B. indicus and B. taurus beef cows.
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Affiliation(s)
- Reinaldo F Cooke
- Department of Animal Science, Texas A&M University, College Station, TX.,Programa de Pós-Graduação em Zootecnia/Faculdade de Medicina Veterinária e Zootecnia, UNESP-Univ. Estadual Paulista, Botucatu, SP, Brazil
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17
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Brandão AP, Cooke RF, Schubach KM, Marques RS, Bohnert DW, Carvalho RS, Dias NW, Timlin CL, Clark-Deener S, Currin JF, Jump DB, Pohler KG, Cerri RLA, Mercadante VRG. Supplementing Ca salts of soybean oil after artificial insemination increases pregnancy success in Bos taurus beef cows. J Anim Sci 2018; 96:2838-2850. [PMID: 29688495 DOI: 10.1093/jas/sky156] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 04/19/2018] [Indexed: 01/25/2023] Open
Abstract
Two experiments investigated the effects of supplementing Ca salts of soybean oil (CSSO) during early gestation on reproductive function and pregnancy rates to AI in Bos taurus beef cows. In Exp. 1, 771 suckled, lactating, multiparous Angus cows were divided into 22 groups of approximately 35 cows per group and timed inseminated on day 0. After AI, groups were assigned randomly to receive (as-fed basis) 100 g of ground corn + 100 g of soybean meal per cow/d, in addition to 1) 100 g/cow daily of CSSO (n = 11) or 2) 87 g of prilled saturated fat + 13 g of limestone per cow/d (CON; n = 11). Groups were maintained in individual tall fescue-dominated pastures and offered treatments from day 0 to 21. Pregnancy status was determined between days 45 and 55 via transrectal ultrasonography. Cows receiving CSSO had greater (P = 0.01) pregnancy rates to timed AI compared with CON (60.2 vs. 51.7%; SEM = 4.2). In Exp. 2, 90 suckled, lactating, multiparous Angus × Hereford cows housed in 18 drylot pens (5 cows per pen) were assigned to the same timed AI program and treatments from Exp. 1 (9 pens per treatment) and received 20 kg/d (DM basis) of grass-alfalfa hay. Transrectal ultrasonography was performed to verify ovulation and corpus luteum (CL) volume before AI (day 0), on days 7 and 15. After ultrasonography on day 15, cows diagnosed without a CL on day 0, but with a CL greater than 0.38 cm3 in volume on days 7 and 15 (2 or 3 cows per pen; CSSO, n = 20; CON, n = 24), were assigned to conceptus collection via transcervical flushing and endometrial biopsy in the uterine horn ipsilateral to the CL. Blood samples were collected for FA analysis on days 0, 7, and 15. Blood was collected from cows not assigned to conceptus collection for whole-blood RNA extraction on day 20 and for pregnancy diagnosis on day 30 by measuring concentrations of pregnancy-associated glycoproteins. Cows receiving CSSO had greater (P ≤ 0.04) mean plasma concentrations of linoleic acid and ω-6 FA compared with CON on days 7 and 15. Moreover, CSSO supplementation increased (P = 0.05) mRNA expression of interferon-tau by the conceptus and blood mRNA expression of interferon-stimulated gene 15 and 20,50-oligoadenylate synthetase on day 20 in gestating cows. Hence, post-AI CSSO supplementation to B. taurus beef cows improved pregnancy rates to timed AI, which can be associated with increased mRNA expression of interferon-tau by the conceptus when CSSO is supplemented during early gestation.
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Affiliation(s)
- Alice P Brandão
- Department of Animal Science, Texas A&M University, College Station, TX.,Eastern Oregon Agricultural Research Center, Oregon State University, Burns, OR
| | - Reinaldo F Cooke
- Department of Animal Science, Texas A&M University, College Station, TX
| | - Kelsey M Schubach
- Department of Animal Science, Texas A&M University, College Station, TX.,Eastern Oregon Agricultural Research Center, Oregon State University, Burns, OR
| | - Rodrigo S Marques
- Eastern Oregon Agricultural Research Center, Oregon State University, Burns, OR
| | - David W Bohnert
- Eastern Oregon Agricultural Research Center, Oregon State University, Burns, OR
| | - Rafael S Carvalho
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, São Paulo, Brazil
| | - Nicholas W Dias
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA
| | - Claire L Timlin
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA
| | - Sherrie Clark-Deener
- Department of Large Animal Clinical Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA
| | - John F Currin
- Department of Large Animal Clinical Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA
| | - Donald B Jump
- Nutrition Program, School of Biological and Population Health Sciences, Linus Pauling Institute, Oregon State University, Corvallis, OR
| | - Ky G Pohler
- Department of Animal Science, Texas A&M University, College Station, TX
| | - Ronaldo L A Cerri
- Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | - Vitor R G Mercadante
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA
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Sakumoto R, Iga K, Hayashi KG, Fujii S, Kanahara H, Hosoe M, Furusawa T. Gene expression of CCL8 and CXCL10 in peripheral blood leukocytes during early pregnancy in cows. J Anim Sci Biotechnol 2018; 9:46. [PMID: 29946459 PMCID: PMC6008911 DOI: 10.1186/s40104-018-0263-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 05/14/2018] [Indexed: 12/30/2022] Open
Abstract
Background The aim of the present study was to evaluate CCL8 and CXCL10 expression and its regulatory mechanism in peripheral blood leukocytes (PBLs) at the time of maternal recognition in cows. Blood samples were collected on 14, 15, 16, 17 and 18 d after artificial insemination (AI). Based on the day of return of estrus, cows were divided into three groups, pregnant (n = 5), early embryonic mortality (EEM; n = 5) and late embryonic mortality (LEM; n = 5). The gene expression levels in PBLs were assessed with quantitative real-time reverse transcription PCR. Results The expression of CCL8 and CXCL10 mRNA in PBLs gradually increased from 14 to 18 d of pregnant cows and significant differences were observed on 18 d (P < 0.05), whereas no significant changes were observed both in EEM and LEM cows. Interferon-stimulated protein 15 kDa (ISG15), myxovirus-resistance gene (MX) 1 and MX2 mRNA expression in PBLs increased from 14 to 18 d which was significant on 18 d of pregnant cows as well as in LEM cows (P < 0.05), but no changes were observed in EEM cows. To determine whether the expression of CCL8 and CXCL10 in PBLs was regulated by pregnancy-related substances or not, expression level was assessed after exposure to interferon-τ (IFNT) and CCL16. Monocytes, granulocytes and lymphocytes were obtained using density-gradient centrifugation and flow cytometry. The addition of IFNT (100 ng/mL) and CCL16 (100 ng/mL) to cultured PBLs increased the expression of CCL8 and CXCL10 mRNA (P < 0.05). The expression of ISG15, MX1 and MX2 mRNA in PBLs was also stimulated by IFNT and CCL16 (P < 0.05). Conclusions The expression of CCL8 and CXCL10 genes increased in PBLs during early pregnancy. Since IFNT stimulated CCL8 and CXCL10 expression in cultured PBLs, the increase of CCL8 and CXCL10 might be pregnancy-dependent events. The expression of both CCL8 and CXCL10 in PBLs was stimulated by CCL16 as well as IFNT, suggesting a chemokine interaction that at least includes CCL8, CXCL10 and CCL16, and may play a role in regulating maternal recognition in cows.
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Affiliation(s)
- Ryosuke Sakumoto
- 1Division of Animal Breeding and Reproduction Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Ibaraki, 305-0901 Japan
| | - Kosuke Iga
- 2Division of Livestock and Forage Research, Tohoku Agricultural Research Center, NARO, Morioka, 020-0198 Japan
| | - Ken-Go Hayashi
- 1Division of Animal Breeding and Reproduction Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Ibaraki, 305-0901 Japan
| | - Shiori Fujii
- 1Division of Animal Breeding and Reproduction Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Ibaraki, 305-0901 Japan
| | - Hiroko Kanahara
- 1Division of Animal Breeding and Reproduction Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Ibaraki, 305-0901 Japan
| | - Misa Hosoe
- 3Division of Animal Sciences, Institute of Agrobiological Sciences, NARO, Ibaraki, 305-8602 Japan
| | - Tadashi Furusawa
- 3Division of Animal Sciences, Institute of Agrobiological Sciences, NARO, Ibaraki, 305-8602 Japan
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Rodrigues AD, Cooke RF, Cipriano RS, Silva LGT, Cerri RLA, Cruppe LH, Meneghetti M, Pohler KG, Vasconcelos JLM. Impacts of estrus expression and intensity during a timed-AI protocol on variables associated with fertility and pregnancy success in Bos indicus-influenced beef cows. J Anim Sci 2018; 96:236-249. [PMID: 29408965 DOI: 10.1093/jas/skx043] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/25/2018] [Indexed: 01/02/2023] Open
Abstract
This experiment evaluated the impacts of estrus expression and intensity, estimated by physical activity during a timed-AI protocol, on reproductive performance of Bos indicus-influenced beef cows. A total of 290 lactating, primiparous, and multiparous nonpregnant Nelore × Angus cows received a 2 mg injection of estradiol benzoate and an intravaginal progesterone (P4) releasing device (CIDR) on d -11, a 12.5 mg injection of PGF2α on d -4, CIDR removal in addition to 0.6 mg injection of estradiol cypionate and 300 IU injection of eCG on d -2, and timed-AI on d 0. Cows were fitted with a pedometer behind their left shoulder on d -4. An estrus detection patch was attached to the tail-head of each cow on d -2. Pedometer results were recorded on d -2 and 0. Estrus expression was defined as removal of >50% of the rub-off coating from the patch on d 0. Net physical activity during estrus was calculated by subtracting total steps from d -4 to -2 (nonestrus basal activity) from total steps from d -2 to 0 (proestrus + estrus period) of each cow. Cows that did not express estrus were classified as NOESTR. Cows that expressed estrus were ranked by net physical activity; those above the median were classified as HIESTR and the remaining cows as LWESTR. Ovarian ultrasonography was performed on d 0 and 7. Blood was collected on d 0, 7, 20, and 30. Pregnancy status was verified by ultrasonography on d 30. Only data from cows responsive to the estrus synchronization protocol were utilized (NOESTR, n = 59; LWESTR, n = 100; HIESTR, n = 98). Diameter of dominant follicle on d 0, corpus luteum volume on d 7, and plasma P4 concentrations on d 7 were greater (P ≤ 0.05) in HIESTR vs. LWESTR and NOESTR and also greater (P ≤ 0.05) for LWESTR vs. NOESTR. Plasma P4 concentrations on d 0 were greater (P < 0.01) in NOESTR vs. HIESTR and LWESTR and similar (P = 0.93) between HIESTR and LWESTR. Whole blood mRNA expression of myxovirus resistance 2 on d 20 was greater (P ≤ 0.05) in HIESTR vs. LWESTR and NOESTR, and similar (P = 0.72) between LWESTR and NOESTR. Pregnancy rates were less (P ≤ 0.04) in NOESTR vs. HIESTR and LWESTR (52.4%, 68.9%, and 73.5%, SEM = 7.2), and similar (P = 0.57) between HIESTR and LWESTR. Hence, expression of estrus during a timed-AI protocol improved ovarian dynamics and pregnancy success, whereas estrus intensity modulated key biological markers associated with fertility but not pregnancy rates in B. indicus-influenced cows beef cows.
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Affiliation(s)
- A D Rodrigues
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - R F Cooke
- Department of Animal Science, Texas A&M University, College Station, TX
| | - R S Cipriano
- Unisalesiano Auxilium, Araçatuba, São Paulo, Brazil
| | - L G T Silva
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - R L A Cerri
- Applied Animal Biology, Faculty of Land and Food Systems, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - K G Pohler
- Department of Animal Science, University of Tennessee, Knoxville, TN
| | - J L M Vasconcelos
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
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20
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Pohler KG, Green JA, Moley LA, Gunewardena S, Hung WT, Payton RR, Hong X, Christenson LK, Geary TW, Smith MF. Circulating microRNA as candidates for early embryonic viability in cattle. Mol Reprod Dev 2018. [PMID: 28643872 DOI: 10.1002/mrd.22856] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Blood-borne extracellular vesicles (i.e., exosomes and microvesicles) carrying microRNAs (miRNAs) could make excellent biomarkers of disease and different physiologic states, including pregnancy status. We tested the hypothesis that circulating extracellular vesicle-derived miRNAs might differentiate the pregnancy status of cows that had maintained pregnancy to Day 30 from non-pregnant cows or from those that exhibited embryonic mortality between Days 17 and 30 of gestation. Cows were randomly assigned for artificial insemination with fertile semen (n = 36) or dead semen (n = 8; control group) on Day 0 (day of estrus). Blood was collected from all animals on Day 0 and on Days 17 and 24 after artificial insemination. Cows receiving live sperm were retrospectively classified as pregnant on Day 30 (n = 17) or exhibiting embryonic mortality between Days 17 and 30 (n = 19). Extracellular vesicles from Day 17 and 24 samples were isolated from serum using ultra-centrifugation, and their presence was confirmed by nanoparticle tracking and Western blot analyses (for CD81) prior to RNA extraction. MicroRNA sequencing was performed on pregnant, embryonic-mortality, and control cows (n = 4 per day), for a total of 24 independent reactions. In total, 214 miRNAs were identified in serum, 40 of which were novel. Based on differential abundance parameters, we identified 32 differentially abundant loci, representing 27 differentially abundant mature miRNA. At Days 17 and 24, specific miRNAs (e.g., miR-25, -16b, and -3596) were identified that differentiated the pregnancy status. In summary, we identified several circulating extracellular vesicles derived miRNAs that differ in abundance between embryonic mortality and pregnant cows.
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Affiliation(s)
- Ky G Pohler
- Department of Animal Science, University of Tennessee, Knoxville, Tennessee
| | - Jonathan A Green
- Division of Animal Sciences, University of Missouri, Columbia, Missouri
| | - Laura A Moley
- Division of Animal Sciences, University of Missouri, Columbia, Missouri
| | | | - Wei-Ting Hung
- University of Kansas Medical Center, Kansas City, Kansas
| | - Rebecca R Payton
- Department of Animal Science, University of Tennessee, Knoxville, Tennessee
| | - Xiaoman Hong
- University of Kansas Medical Center, Kansas City, Kansas
| | | | - Tom W Geary
- USDA-ARS, Fort Keogh Livestock and Range Research Laboratory, Miles City, Montana
| | - Michael F Smith
- Division of Animal Sciences, University of Missouri, Columbia, Missouri
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21
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Talukder MAS, Balboula AZ, Shirozu T, Kim SW, Kunii H, Suzuki T, Ito T, Kimura K, Takahashi M. Activation of lysosomal cathepsins in pregnant bovine leukocytes. Reproduction 2018; 155:515-528. [PMID: 29626104 DOI: 10.1530/rep-18-0078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/06/2018] [Indexed: 11/08/2022]
Abstract
In ruminants, interferon-tau (IFNT)-mediated expression of interferon-stimulated genes in peripheral blood leukocytes (PBLs) can indicate pregnancy. Recently, type 1 IFN-mediated activation of lysosomes and lysosomal cathepsins (CTSs) was observed in immune cells. This study investigated the status of lysosomal CTSs and lysosomes in PBLs collected from pregnant (P) and non-pregnant (NP) dairy cows, and conducted in vitro IFNT stimulation of NP blood leukocytes. Blood samples were collected 0, 7, 14 and 18 days post-artificial insemination, and the peripheral blood mononuclear cells (PBMCs) and polymorphonuclear granulocytes (PMNs) separated. The fluorescent activity of CTSB and CTSK in PMNs significantly increased with the progress of pregnancy, especially on day 18. In vitro supplementation of IFNT significantly increased the activities of CTSB and CTSK in NP PBMCs and PMNs. CTSB expression was significantly higher in PBMCs and PMNs collected from P day-18 cows than from NP cows, whereas there was no difference in CTSK expression. IFNT increased CTSB expression but did not affect CTSK expression. Immunodetection showed an increase of CTSB in P day-18 PBMCs and PMNs. In vitro stimulation of IFNT increased CTSB in NP PBMCs and PMNs. Lysosomal acidification showed a significant increase in P day-18 PBMCs and PMNs. IFNT also stimulated lysosomal acidification. Expressions of lysosome-associated membrane protein (LAMP) 1 and LAMP2 were significantly higher in P day-18 PBMCs and PMNs. The results suggest that pregnancy-specific activation of lysosomal functions by CTS activation in blood leukocytes is highly associated with IFNT during maternal and fetal recognition of pregnancy.
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Affiliation(s)
- Md Abdus Shabur Talukder
- Laboratory of Animal Genetics and ReproductionResearch Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Ahmed Zaky Balboula
- Department of TheriogenologyFaculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Takahiro Shirozu
- Laboratory of Animal Genetics and ReproductionResearch Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Sung Woo Kim
- Animal Genetic Resources Research CenterNational Institute of Animal Science, Namwon, Korea
| | - Hiroki Kunii
- Laboratory of Animal Genetics and ReproductionResearch Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Toshiyuki Suzuki
- Laboratory of Animal Genetics and ReproductionResearch Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Tsukino Ito
- Laboratory of Animal Genetics and ReproductionResearch Faculty of Agriculture, Hokkaido University, Hokkaido, Japan
| | - Koji Kimura
- Graduate School of Environmental and Life ScienceOkayama University, Okayama, Japan
| | - Masashi Takahashi
- Laboratory of Animal Genetics and ReproductionResearch Faculty of Agriculture, Hokkaido University, Hokkaido, Japan .,Global Station for FoodLand and Water Resources, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, Japan
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22
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Forde N, Lonergan P. Interferon-tau and fertility in ruminants. Reproduction 2017; 154:F33-F43. [DOI: 10.1530/rep-17-0432] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/04/2017] [Accepted: 09/08/2017] [Indexed: 01/06/2023]
Abstract
Establishment of pregnancy in domestic ruminants includes pregnancy recognition signalling by the conceptus, implantation and placentation. Despite the high fertilisation success rate in ruminants, a significant amount of embryo loss occurs, primarily during early gestation. Interferon-tau (IFNT), a type I interferon that is exclusively secreted by the cells of the trophectoderm of the ruminant conceptus, has been recognised as the primary agent for maternal recognition of pregnancy in ruminants. It produces its antiluteolytic effect on the corpus luteum by inhibiting the expression of oxytocin receptors in the uterine epithelial cells, which prevents pulsatile, luteolytic secretion of prostaglandin F2α by the uterine endometrium. While the importance of IFNT in maternal recognition of pregnancy and prevention of luteolysis in ruminants is unequivocal, important questions, for example, relating to the threshold level of IFNT required for pregnancy maintenance, remain unanswered. This paper reviews data linking IFNT with measures of fertility in ruminants.
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23
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Hansen TR, Sinedino LDP, Spencer TE. Paracrine and endocrine actions of interferon tau (IFNT). Reproduction 2017; 154:F45-F59. [DOI: 10.1530/rep-17-0315] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/18/2017] [Accepted: 09/04/2017] [Indexed: 12/22/2022]
Abstract
This review focuses on the paracrine and endocrine actions of interferon tau (IFNT) during pregnancy recognition and establishment in ruminants. Pregnancy recognition involves the suppression of the endometrial luteolytic mechanism by the conceptus to maintain progesterone production by the corpus luteum (CL). The paracrine antiluteolytic effects of conceptus-derived IFNT inhibit upregulation of oxytocin receptors in the endometrial epithelia of the uterus, thereby preventing the production of luteolytic prostaglandin F2 alpha (PGF2α) pulses. In the endometrium, IFNT induces or upregulates a large number of classical IFN-stimulated genes (ISGs) and regulates expression of many other genes in a cell-specific manner that are likely important for conceptus elongation, implantation and establishment of pregnancy. Further, IFNT has endocrine effects on extrauterine cells and tissues. In sheep, IFNT induces luteal resistance to PGF2α, thereby ensuring survival of the CL for maintenance of pregnancy. The ISGs induced in circulating peripheral blood mononuclear cells by IFNT may also be useful as an indicator of pregnancy status in cattle. An increased knowledge of IFNT and ISGs is important to improve the reproductive efficiency in ruminants.
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24
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Thakur N, Singh G, Paul A, Bharati J, Rajesh G, GM V, Chouhan V, Bhure S, Maurya V, Singh G, Sarkar M. Expression and molecular cloning of interferon stimulated genes in buffalo ( Bubalus bubalis ). Theriogenology 2017; 100:50-58. [DOI: 10.1016/j.theriogenology.2017.05.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 05/27/2017] [Accepted: 05/30/2017] [Indexed: 10/19/2022]
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25
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Cipriano RS, Cooke RF, Rodrigues AD, Silva LGT, Bohnert DW, Marques RS, Vasconcelos JLM, Pires AV, Cerri RLA. Post-artificial insemination supplementation with calcium salts of soybean oil influences pregnancy establishment factors in beef cows. J Anim Sci 2017; 94:4892-4902. [PMID: 27898968 DOI: 10.2527/jas.2016-0916] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The objective of this experiment was to compare hormonal, uterine, and conceptus factors associated with pregnancy establishment in beef cows supplemented or not with Ca salts of soybean oil (CSSO) for 21 d beginning after timed AI. One hundred lactating multiparous Nelore cows were allocated to 20 groups of 5 cows/group and timed inseminated on d 0 of the experiment. After AI, groups were randomly assigned to receive (as-fed basis) 100 g of protein-mineral mix + 100 g of ground corn per cow per day, in addition to 1) 100 g/cow daily of CSSO ( = 10) or 2) 100 g/cow daily of kaolin (CON; rumen-inert indigestible substance; = 10). Groups were maintained in 4 pastures (5 groups from the same treatment within each pasture) with ad libitum access to forage. Groups were segregated daily and individually offered treatments from d 0 to 21. Blood samples were collected and transrectal ultrasonography was performed to verify ovulation and corpus luteum (CL) volume immediately before AI (d 0) and on d 7 and 15. After ultrasonography on d 15, 60 cows (30 cows/treatment and 3 cows/group) diagnosed without the presence of a CL on d 0 but with a CL greater than 0.38 cm3 in volume on d 7 and 15 were assigned to conceptus collection via transcervical flushing with PBS followed by endometrial biopsy in the uterine horn ipsilateral to the CL. Additional blood samples were collected for whole-blood RNA extraction (d 20), and pregnancy status was verified by transrectal ultrasonography (d 30) in cows not assigned to conceptus collection. Cows receiving CSSO had greater ( ≤ 0.04) mean plasma linoleic acid concentration, plasma linoleic:linolenic acid ratio, plasma progesterone (P4) concentration, and CL volume during the experiment compared with CON cows. Moreover, CSSO supplementation increased ( ≤ 0.04) length and mRNA expression of and by the conceptus as well as blood mRNA expression of interferon-stimulated genes on d 20 in gestating cows. No treatment differences were detected ( ≥ 0.30) for endometrial mRNA expression of and . In summary, post-AI CSSO supplementation to B. indicus beef cows increased plasma concentration of linoleic acid and enhanced pregnancy establishment factors, which included CL development and plasma P4 concentration, conceptus growth, and mRNA expression of as well as blood mRNA expression of interferon-stimulated genes.
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26
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Abstract
The first part of this article defines the attributes of the ideal pregnancy test and describes the direct and indirect methods for pregnancy diagnosis in dairy cows that are currently available that have the potential to replace transrectal palpation. Second, this new technology must be practically integrated into a systematic on-farm reproductive management strategy and empirically demonstrated to exceed the status quo of the industry in reproductive performance. Finally a future direction for research and technology in the area of early pregnancy diagnosis in dairy cows is presented, and the overall conclusions of the ideas presented herein are drawn.
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27
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Barbato O, Guelfi G, Barile VL, Menchetti L, Tortiello C, Canali C, Brecchia G, Traina G, Beckers JF, Melo de Sousa N. Using real-time PCR to identify pregnancy-associated glycoprotein 2 (PAG-2) in water buffalo (Bubalus bubalis) blood in early pregnancy. Theriogenology 2016; 89:106-113. [PMID: 28043340 DOI: 10.1016/j.theriogenology.2016.09.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 09/20/2016] [Accepted: 09/23/2016] [Indexed: 01/09/2023]
Abstract
This study investigates for the first time mRNA pregnancy-associated glycoprotein 2 (PAG-2) expression in blood cells during early pregnancy in water buffalo. The PAGs constitute a large family of glycoproteins expressed in the outer epithelial layer of the placenta in eutherian species. All PAGs are not concomitantly expressed throughout pregnancy; some of them are expressed in the earlier phases, whereas others appear later and are expressed over a shorter period. Twenty-one lactating buffaloes were analyzed-17 females were synchronized with PRID and artificially inseminated (AI), whereas four females were synchronized but not inseminated (control group). Blood was collected at Days 0, 18, 28, 40, and 75 from AI (AI = Day 0). Expression of PAG-2 mRNA in blood samples was measured with real-time polymerase chain reaction. Pregnancy diagnosis was performed on Day 28 (D28) and Day 40 (D40) after AI by ultrasonography (US) and by PAG-1 RIA method. The females diagnosed pregnant at D28 and confirmed pregnant at D40 were defined as D28(+)D40(+) group; the females diagnosed pregnant at D28 but not confirmed pregnant at D40 were defined as D28(+)D40(-) group; and the females that were diagnosed as nonpregnant on either days were defined as D28(-)D40(-) group. PAG-2 mRNA at Day 0 was not observed in any groups. The D28(+)D40(+) group showed the highest expression, starting on Day 18 and increasing progressively up to Day 75. PAG-2 mRNA was also expressed on Day 18 in both D28(+)D40(-) and D28(-)D40(-) groups, but their levels were lower than those of D28(+)D40(+) group and almost constant over time. PAG-2 mRNA was never detected in the control group. The significant difference in the expression of PAG-2 mRNA between the D28(+)D40(+) group and the D28(-)D40(-) group, starting from Day 18, suggests that these animals might have conceived, but have experienced early embryonic loss; therefore, the PAG-2 mRNA was still present in blood circulation although at lower levels, as found in the D28(+)D40(-) group. In conclusion, this study shows that PAG-2 mRNA can be detected in peripheral maternal blood cells earlier than circulating PAG-1 molecules and could be useful for studies on early pregnancy and embryonic mortality.
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Affiliation(s)
- O Barbato
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy.
| | - G Guelfi
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - V L Barile
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia Agraria (CREA) - Animal Production Research Centre, Monterotondo, Rome, Italy
| | - L Menchetti
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - C Tortiello
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - C Canali
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - G Brecchia
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - G Traina
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - J F Beckers
- Laboratory of Animal Endocrinology and Reproduction, Faculty of Veterinary Medicine, University of Liege, Liege, Belgium
| | - N Melo de Sousa
- Laboratory of Animal Endocrinology and Reproduction, Faculty of Veterinary Medicine, University of Liege, Liege, Belgium
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Wiltbank MC, Baez GM, Garcia-Guerra A, Toledo MZ, Monteiro PL, Melo LF, Ochoa JC, Santos JE, Sartori R. Pivotal periods for pregnancy loss during the first trimester of gestation in lactating dairy cows. Theriogenology 2016; 86:239-53. [DOI: 10.1016/j.theriogenology.2016.04.037] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 02/02/2016] [Accepted: 03/14/2016] [Indexed: 12/16/2022]
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29
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Fricke PM, Carvalho PD, Lucy MC, Curran F, Herlihy MM, Waters SM, Larkin JA, Crowe MA, Butler ST. Effect of manipulating progesterone before timed artificial insemination on reproductive and endocrine parameters in seasonal-calving, pasture-based Holstein-Friesian cows. J Dairy Sci 2016; 99:6780-6792. [PMID: 27320671 DOI: 10.3168/jds.2016-11229] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 05/09/2016] [Indexed: 11/19/2022]
Abstract
Fertility to timed AI (TAI) is profoundly affected by progesterone (P4) levels during hormonal synchronization protocols. Holstein-Friesian dairy cows managed in a seasonal-calving, pasture-based production system were randomly assigned to 2 treatments to manipulate P4 before TAI during growth of the preovulatory follicle. Cows in the first treatment (High P4; n=30) were submitted to a Double-Ovsynch protocol {Pre-Ovsynch [GnRH; 7 d, PGF2α; 3 d, GnRH] followed 7 d later by Breeding-Ovsynch [GnRH (G1); 7 d PGF2α; 24 h, PGF2α; 32 h, GnRH (G2); 16 h, TAI]}. Cows in the second treatment (n=30; Low P4) received the same Double-Ovsynch protocol but with an additional PGF2α treatment 24 h after G1. Overall, synchronization rate did not differ between treatments and was 92% (55/60). Unexpectedly, 37% of Low P4 cows were detected in estrus ~24 h before scheduled TAI and were inseminated ~16 h before scheduled TAI. Overall, P4 did not differ between treatments at G1, whereas High P4 cows had greater P4 concentrations at PGF2α and G2 than Low P4 cows. High P4 cows had the smallest mean follicle diameter at G2, whereas Low P4 cows with no estrus before TAI had intermediate mean follicle diameter at G2, and Low P4 cows with estrus before TAI had the largest mean follicle diameter. Low P4 cows with estrus before TAI had larger corpora lutea 15 d after TAI than Low P4 cows without estrus before TAI or High P4 cows. In accordance with corpus luteum size on d 15, High P4 cows and Low P4 cows without estrus before TAI had lower P4 from 4 to 46 d after TAI than Low P4 cows with estrus before TAI. Relative mRNA levels of the interferon-stimulated genes ISG15, MX1, MX2, and OAS1 were greater for Low P4 than for High P4 cows, whereas relative mRNA levels of RTP4 were greater for High P4 than for Low P4 cows 18 d after TAI. Treatment did not affect plasma pregnancy-associated glycoprotein concentrations after TAI; however, pregnancy-associated glycoprotein concentrations were affected by pregnancy status and parity. Treatment did not affect pregnancy per artificial insemination at 29, 39, or 60 d after TAI, and no pregnancy losses were observed from 39 to 60 d after TAI. We concluded that (1) Low P4 cows were more likely to express estrus than High P4 cows; (2) the subpopulation of Low P4 cows that expressed estrus had larger preovulatory follicles and greater P4 concentrations after TAI; and (3) regardless of estrus before TAI, all Low P4 cows had greater mRNA expression for 5 of 6 interferon-stimulated genes than High P4 cows 18 d after TAI.
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Affiliation(s)
- P M Fricke
- Department of Dairy Science, University of Wisconsin-Madison, Madison 53706.
| | - P D Carvalho
- Department of Dairy Science, University of Wisconsin-Madison, Madison 53706
| | - M C Lucy
- Department of Animal Sciences, University of Missouri, Columbia 65211
| | - F Curran
- Animal Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, County Cork, Ireland
| | - M M Herlihy
- Animal Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, County Cork, Ireland
| | - S M Waters
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Dunsany, County Meath, Ireland
| | - J A Larkin
- Animal and Bioscience Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Grange, Dunsany, County Meath, Ireland
| | - M A Crowe
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - S T Butler
- Animal Research Department, Animal and Grassland Research and Innovation Centre, Teagasc, Moorepark, Fermoy, County Cork, Ireland
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Buragohain L, Kumar R, Nanda T, Phulia SK, Mohanty AK, Kumar S, Balhara S, Ghuman SPS, Singh I, Balhara AK. Serum MX2 Protein as Candidate Biomarker for Early Pregnancy Diagnosis in Buffalo. Reprod Domest Anim 2016; 51:453-60. [DOI: 10.1111/rda.12700] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 04/09/2016] [Indexed: 11/30/2022]
Affiliation(s)
- L Buragohain
- College of Veterinary Sciences; LUVAS; Hisar Haryana India
| | - R Kumar
- Central Institute for Research on Buffaloes; Hisar Haryana India
| | - T Nanda
- College of Veterinary Sciences; LUVAS; Hisar Haryana India
| | - SK Phulia
- Central Institute for Research on Buffaloes; Hisar Haryana India
| | - AK Mohanty
- National Dairy Research Institute; Karnal Haryana India
| | - S Kumar
- National Dairy Research Institute; Karnal Haryana India
| | - S Balhara
- Central Institute for Research on Buffaloes; Hisar Haryana India
| | - SPS Ghuman
- Department of Veterinary Gynaecology and Obstetrics; College of Veterinary Science; Guru Angad Dev Veterinary and Animal Science University; Ludhiana Punjab India
| | - I Singh
- Central Institute for Research on Buffaloes; Hisar Haryana India
| | - AK Balhara
- Central Institute for Research on Buffaloes; Hisar Haryana India
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31
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Interferon stimulated genes as peripheral diagnostic markers of early pregnancy in sheep: a critical assessment. Animal 2016; 10:1856-1863. [PMID: 27150201 DOI: 10.1017/s175173111600077x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We investigated the diagnostic reliability of pregnancy detection using changes in interferon stimulated gene (ISG) messenger RNA (mRNA) levels in circulating immune cells in ewes. Two different groups of ewes (an experimental group, experiment 1 and a farm group, experiment 2) were oestrus-synchronized and blood sampled on day 14 (D0=day of insemination in control animals, experiment 1) and day 15 (experiment 2). Real-time PCR were performed to evaluate the abundance of different ISG mRNAs. In the experimental group, peripheral blood mononuclear cells of 29 ewes born and bred in experimental facilities were isolated using a Percoll gradient method. Gene expression for Chemokine (C-X-C motif) ligand 10 (CXCL10), Myxovirus (influenza virus) resistance 1 (MX1) and Signal transducer and activator of transcription 1 (STAT1) mRNA were, respectively, 8.3-fold, 6.1-fold and 2.7-fold higher (P0.10) in CXCL10, STAT1, MX1, Myxovirus (influenza virus) resistance 2 (MX2) and ISG15 ubiquitin-like modifier (ISG15) mRNA expression were found between pregnant and non-pregnant ewes. The ROC curves and the hierarchical classification generated from the real-time PCR data failed to discriminate between pregnant and non-pregnant animals. In this group of animals, our results show a strong variability in ISG expression patterns: 17% of animals identified as non-pregnant by the five tests were in fact pregnant, only 52% of pregnant animals had at least two positive results (two genes above threshold), whereas up to five positive results (five genes above threshold) were needed to avoid misclassification. In conclusion, this study illustrates the high variability in ISG expression levels in immune circulating cells during early pregnancy and, therefore, highlights the limits of using ISG expression levels in blood samples, collected on PAXgene® tubes on farms, for early pregnancy detection in sheep.
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Davoodi S, Cooke RF, Fernandes ACC, Cappellozza BI, Vasconcelos JLM, Cerri RLA. Expression of estrus modifies the gene expression profile in reproductive tissues on Day 19 of gestation in beef cows. Theriogenology 2015; 85:645-55. [PMID: 26525398 DOI: 10.1016/j.theriogenology.2015.10.002] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 09/22/2015] [Accepted: 10/01/2015] [Indexed: 11/16/2022]
Abstract
The aim of this study was to test the effect of expression of estrus at artificial insemination (AI) on endometrium, conceptus, and CL gene expression of beef cows. Thirty-six multiparous nonlactating Nelore cows were enrolled on an estradiol- and progesterone (P4)-based timed AI protocol (AI = Day 0) and then slaughtered for the endometrium, CL, and conceptus collection on Day 19. The animals were retrospectively grouped on the basis of cows that (1) showed signs of estrus near AI (n = 19; estrus) and (2) did not show any signs of estrus (n = 17; nonestrus). Body condition score, blood sampling, and ultrasound examination were performed on Days 0, 7, and 18 of the experiment followed by messenger RNA extraction and quantitative reverse transcription polymerase chain reaction analysis of 58 target genes. Data were checked for normality and analyzed by ANOVA for repeated measures using proc GLM, MIXED, and UNIVARIATE of SAS. Only pregnant cows were included in the analyses (n = 12; nonestrus, n = 11). Estrous expression had no correlation with parameters such as body condition score, preovulatory follicle and CL diameter, P4 concentration in plasma on Days 7 and 18 after AI, and interferon-tau concentration in the uterine flushing (P > 0.15); however, a significant increase was observed in conceptus size from cows that expressed estrus (P = 0.02; 38.3 ± 2.8 vs. 28.2 ± 2.9 mm). The majority of transcripts affected by estrous expression in the endometrium belong to the immune system and adhesion molecule family (MX1, MX2, MYL12A, MMP19, CXCL10, IGLL1, and SLPI; P ≤ 0.05), as well as those related with prostaglandin synthesis (OTR and COX-2; P ≤ 0.05). Genes related to apoptosis, P4 synthesis, and prostaglandin receptor were downregulated (CYP11A, BAX, and FPr; P < 0.05) in the CL tissue of cows that expressed estrus. In addition, four genes were identified as differentially expressed in the 19-day-old conceptus from cows that expressed estrus (ISG15, PLAU, BMP15, and EEF1A1; P < 0.05). There was also a significant effect of Day 7 concentration of P4 mainly affecting the immune system, adhesion molecules, and wnt signaling pathway of the endometrium (IGLL1, MX2, SLPI, TRD, APC, WNT2, GLYCAM1, and MYL12A; P < 0.05). A significant interaction between estrous expression and P4 concentration on Day 7 was more pronounced in immune system genes (MX1, MX2, TRD, SLPI, and IGLL1; P < 0.05). This study reported that estrous expression at the time of AI favorably altered the gene expression profile in reproductive tissues during the preimplantation phase toward a more receptive state to the elongating conceptus. These effects seem to be more evident in the endometrium during the time of dynamic remodeling for embryo implantation.
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Affiliation(s)
- S Davoodi
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver, British Columbia, Canada
| | - R F Cooke
- Eastern Oregon Agricultural Research Center, Oregon State University, Burns, Oregon, USA
| | - A C C Fernandes
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver, British Columbia, Canada
| | - B I Cappellozza
- Eastern Oregon Agricultural Research Center, Oregon State University, Burns, Oregon, USA
| | - J L M Vasconcelos
- Faculdade de Medicina Veterinária e Zootecnia, UNESP, Botucatu, São Paulo, Brazil
| | - R L A Cerri
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver, British Columbia, Canada.
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Sandra O, Constant F, Vitorino Carvalho A, Eozénou C, Valour D, Mauffré V, Hue I, Charpigny G. Maternal organism and embryo biosensoring: insights from ruminants. J Reprod Immunol 2015; 108:105-13. [PMID: 25617112 DOI: 10.1016/j.jri.2014.12.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/04/2014] [Accepted: 12/14/2014] [Indexed: 12/01/2022]
Abstract
In terms of contribution to pregnancy, the mother not only produces gametes, but also hosts gestation, whose progression in the uterus is conditioned by early events during implantation. In ruminants, this period is associated with elongation of the extra-embryonic tissues, gastrulation of the embryonic disk and cross-talk with the endometrium. Recent data have prompted the need for accurate staging of the bovine conceptus and shown that asynchrony between elongation and gastrulation processes may account for pregnancy failure. Data mining of endometrial gene signatures has allowed the identification of molecular pathways and new factors regulated by the conceptus (e.g. FOXL2, SOCS6). Interferon-tau has been recognised to be the major signal of pregnancy recognition, but prostaglandins and lysophospholipids have also been demonstrated to be critical players at the conceptus-endometrium interface. Interestingly, up-regulation of interferon-regulated gene expression has been identified in circulating immune cells during implantation, making these factors a potential source of non-invasive biomarkers for early pregnancy. Distinct endometrial responses have been shown to be elicited by embryos produced by artificial insemination, in vitro fertilisation or somatic cell nuclear transfer. These findings have led to the concept that endometrium is an early biosensor of embryo quality. This biological property first demonstrated in cattle has been recently extended and associated with embryo selection in humans. Hence, compromised or suboptimal endometrial quality can subtly or deeply affect embryo development, with visible and sometimes severe consequences for placentation, foetal development, pregnancy outcome and the long-term health of the offspring.
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Affiliation(s)
- Olivier Sandra
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France.
| | - Fabienne Constant
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France
| | - Anais Vitorino Carvalho
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France
| | - Caroline Eozénou
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France
| | - Damien Valour
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France
| | - Vincent Mauffré
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France
| | - Isabelle Hue
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France
| | - Gilles Charpigny
- INRA, UMR1198 Biologie du Développement et Reproduction, F-78352 Jouy-en-Josas, France; ENVA, UMR1198 Biologie du Développement et Reproduction, F-94704 Maisons Alfort, France
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Pohler KG, Green JA, Geary TW, Peres RFG, Pereira MHC, Vasconcelos JLM, Smith MF. Predicting Embryo Presence and Viability. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2015; 216:253-70. [PMID: 26450503 DOI: 10.1007/978-3-319-15856-3_13] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Pregnancy establishment, followed by birth of live offspring, is essential to all mammals. The biological processes leading up to pregnancy establishment, maintenance, and birth are complex and dependent on the coordinated timing of a series of events at the molecular, cellular, and physiological level. The ability to ovulate a competent oocyte, which is capable of undergoing fertilization, is only the initial step in achieving a successful pregnancy. Once fertilization has occurred and early embryonic development is initiated, early pregnancy detection is critical to provide proper prenatal care (humans) or appropriate management (domestic livestock). However, the simple presence of an embryo, early in gestation, does not guarantee the birth of a live offspring. Pregnancy loss (embryonic mortality, spontaneous abortions, etc.) has been well documented in all mammals, especially in humans and domestic livestock species, and is a major cause of reproductive loss. It has been estimated that only about 25-30% of all fertilized oocytes in humans result in birth of a live offspring; however, identifying the embryos that will not survive to parturition has not been an easy task. Therefore, investigators have focused the identification of products in maternal circulation that permit the detection of an embryo and assessment of its well-being. This review will focus on the advances in predicting embryonic presence and viability, in vivo.
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Affiliation(s)
- K G Pohler
- Department of Animal Science, University of Tennessee, Knoxville, TN, USA.
| | - J A Green
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
| | - T W Geary
- USDA-ARS, Fort Keogh Livestock and Range Research Laboratory, Miles City, MT, USA
| | - R F G Peres
- Departamento de Produção Animal, Faculdade de MedicinaVeterinária e Zootecnia-UNESP, Botucatu, São Paulo, Brazil
| | - M H C Pereira
- Departamento de Produção Animal, Faculdade de MedicinaVeterinária e Zootecnia-UNESP, Botucatu, São Paulo, Brazil
| | - J L M Vasconcelos
- Departamento de Produção Animal, Faculdade de MedicinaVeterinária e Zootecnia-UNESP, Botucatu, São Paulo, Brazil
| | - M F Smith
- Division of Animal Sciences, University of Missouri, Columbia, MO, USA
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Giordano J, Fricke P, Cabrera V. Economics of resynchronization strategies including chemical tests to identify nonpregnant cows. J Dairy Sci 2013; 96:949-61. [DOI: 10.3168/jds.2012-5704] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 11/01/2012] [Indexed: 11/19/2022]
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Forde N, Duffy GB, McGettigan PA, Browne JA, Mehta JP, Kelly AK, Mansouri-Attia N, Sandra O, Loftus BJ, Crowe MA, Fair T, Roche JF, Lonergan P, Evans ACO. Evidence for an early endometrial response to pregnancy in cattle: both dependent upon and independent of interferon tau. Physiol Genomics 2012; 44:799-810. [DOI: 10.1152/physiolgenomics.00067.2012] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The aims of this study were to 1) identify the earliest transcriptional response of the bovine endometrium to the presence of the conceptus (using RNAseq), 2) investigate if these genes are regulated by interferon tau (IFNT) in vivo, and 3) determine if they are predictive of the pregnancy status of postpartum dairy cows. RNAseq identified 459 differentially expressed genes (DEGs) between pregnant and cyclic endometria on day 16. Quantitative real-time PCR analysis of selected genes revealed PARP12, ZNFX1, HERC6, IFI16, RNF213, and DDX58 expression increased in pregnant compared with cyclic endometria on day 16 and were directly upregulated by intrauterine infusion of IFNT in vivo for 2 h ( P < 0.05). On day 13 following estrous endometrial expression of nine genes increased [ ARHGAP1, MGC127874, LIMS2, TBC1D1, FBXL7, C25H16orf71, LOC507810, ZSWIM4, and one novel gene (ENSBTAT00000050193)] and seven genes decreased ( SERBP1, SRGAP2, AL7A1, TBK1, F2RL2, MGC128929, and WBSCR17; P < 0.05) in pregnant compared with cyclic heifers. Of these DEGs, significant differences in expression between pregnant and cyclic endometria were maintained on day 16 for F2RL2, LIMS2, LOC507810, MGC127874, TBC1D1, WBSCR17, and ZSWIM4 ( P < 0.05) both their expression was not directly regulated by IFNT in vivo. Analysis of the expression of selected interferon-stimulated genes in blood samples from postpartum dairy cows revealed a significant increase ( P < 0.05) in expression of ZXFX1, PARP12, SAMD9, and HERC6 on day 18 following artificial insemination in cows subsequently confirmed pregnant compared with cyclic controls. In conclusion, RNAseq identified a number of novel pregnancy-associated genes in the endometrium of cattle during early pregnancy that are not regulated by IFNT in vivo. In addition, a number of genes that are directly regulated by short term exposure to IFNT in vivo are differentially expressed on day 18 following estrus detection in the blood of postpartum dairy cows depending on their pregnancy status.
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Affiliation(s)
- N. Forde
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - G. B. Duffy
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - P. A. McGettigan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - J. A. Browne
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - J. P. Mehta
- Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - A. K. Kelly
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - N. Mansouri-Attia
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - O. Sandra
- Institut National de la Recherche Agronomique, Unite Mixté de Recherche, 1198 Biologie du Développement et Reproduction, Jouy en Josas, France
| | - B. J. Loftus
- Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - M. A. Crowe
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland
- Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - T. Fair
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - J. F. Roche
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - P. Lonergan
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
- Conway Institute, University College Dublin, Belfield, Dublin, Ireland
| | - A. C. O. Evans
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
- Conway Institute, University College Dublin, Belfield, Dublin, Ireland
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Ott TL, Gifford CA. Effects of Early Conceptus Signals on Circulating Immune Cells: Lessons from Domestic Ruminants. Am J Reprod Immunol 2010; 64:245-54. [DOI: 10.1111/j.1600-0897.2010.00912.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Green J, Okamura C, Poock S, Lucy M. Measurement of interferon-tau (IFN-τ) stimulated gene expression in blood leukocytes for pregnancy diagnosis within 18–20d after insemination in dairy cattle. Anim Reprod Sci 2010; 121:24-33. [DOI: 10.1016/j.anireprosci.2010.05.010] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 04/28/2010] [Accepted: 05/12/2010] [Indexed: 10/19/2022]
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