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Jamwal S, Tyagi N, Kumar J, Kaushik JK, Kumar S, Mohanty AK. Simple method for isolation and culture of primary buffalo (Bubalus bubalis) endometrial epithelial cells (pBuEECs) and its characterization using high throughput proteomics approach. Anim Reprod Sci 2024; 263:107449. [PMID: 38490065 DOI: 10.1016/j.anireprosci.2024.107449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/06/2024] [Accepted: 02/23/2024] [Indexed: 03/17/2024]
Abstract
Early embryonic mortality resulting from insufficient interaction between the embryo and the uterus leads to the failure of pregnancy in livestock animals. Thus, it is imperative to comprehend the multifaceted process of implantation at molecular levels, which requires synchronized feto-maternal interaction. The in-vitro models serve as valuable tools to investigate the specific stages of implantation. The present study was undertaken to develop a simple method to isolate and culture the primary buffalo endometrial epithelial cells (pBuEECs), followed by proteome profiling of the proliferating cells. Collagenase I was used to separate uterine epithelial cells (UECs) from the ipsilateral uterine horn, and then the cells were separated using a cell strainer. After being seeded on culture plates, UECs developed colonies with characteristic epithelial shape and expressed important markers such as cytokeratin 18 (KRT18), progesterone receptor (PGR), β-estrogen receptor (ESR1), and leukemia inhibitory factor (LIF), which were confirmed by PCR. The purity of epithelial cells was assessed using cytokeratin 18 immunostaining, which indicated approximately 99% purity in cultured cells. The proteome profiling of pBuEECs via high-throughput tandem mass spectrometry (MS), identified a total of 3383 proteins. Bioinformatics analysis revealed enrichment in various biological processes, including cellular processes, metabolic processes, biological regulation, localization, signaling, and developmental processes. Moreover, the KEGG pathway analysis highlighted associations with the ribosome, proteosome, oxidative phosphorylation, spliceosome, and cytoskeleton regulation pathways. In conclusion, these well characterized cells offer valuable in-vitro model to enhance the understanding of implantation and uterine pathophysiology in livestock animals, particularly buffaloes.
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Affiliation(s)
- Shradha Jamwal
- Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, Karnal, India
| | - Nikunj Tyagi
- Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, Karnal, India
| | - Jaideep Kumar
- Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, Karnal, India
| | - Jai Kumar Kaushik
- Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, Karnal, India
| | - Sudarshan Kumar
- Animal Biotechnology Centre, Indian Council of Agricultural Research-National Dairy Research Institute, Karnal, India.
| | - Ashok Kumar Mohanty
- Indian Council of Agricultural Research-Central Institute for Research on Cattle, Meerut, India.
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2
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Butt Z, Tinning H, O'Connell MJ, Fenn J, Alberio R, Forde N. Understanding conceptus-maternal interactions: what tools do we need to develop? Reprod Fertil Dev 2023; 36:81-92. [PMID: 38064186 DOI: 10.1071/rd23181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
Communication between the maternal endometrium and developing embryo/conceptus is critical to support successful pregnancy to term. Studying the peri-implantation period of pregnancy is critical as this is when most pregnancy loss occurs in cattle. Our current understanding of these interactions is limited, due to the lack of appropriate in vitro models to assess these interactions. The endometrium is a complex and heterogeneous tissue that is regulated in a transcriptional and translational manner throughout the oestrous cycle. While there are in vitro models to study endometrial function, they are static and 2D in nature or explant models and are limited in how well they recapitulate the in vivo endometrium. Recent developments in organoid systems, microfluidic approaches, extracellular matrix biology, and in silico approaches provide a new opportunity to develop in vitro systems that better model the in vivo scenario. This will allow us to investigate in a more high-throughput manner the fundamental molecular interactions that are required for successful pregnancy in cattle.
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Affiliation(s)
- Zenab Butt
- Discovery and Translational Sciences Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Haidee Tinning
- Discovery and Translational Sciences Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds LS2 9JT, UK
| | - Mary J O'Connell
- Computational and Molecular Evolutionary Biology Group, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Jonathan Fenn
- Computational and Molecular Evolutionary Biology Group, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Ramiro Alberio
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Niamh Forde
- Discovery and Translational Sciences Department, Leeds Institute of Cardiovascular and Metabolic Medicine, School of Medicine, University of Leeds, Leeds LS2 9JT, UK
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3
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Nakamura K, Kusama K, Hori M, Imakawa K. Global analyses and potential effects of extracellular vesicles on the establishment of conceptus implantation during the peri-implantation period. J Reprod Dev 2023; 69:246-253. [PMID: 37495510 PMCID: PMC10602766 DOI: 10.1262/jrd.2023-044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/10/2023] [Indexed: 07/28/2023] Open
Abstract
Intrauterine extracellular vesicles (EVs) are involved in establishing proper conceptus-endometrial communication, which is essential for conceptus implantation and subsequent successful placentation. Despite several studies on intrauterine EVs, the composition and quantitative changes in conceptus and endometrial EVs, as well as the effects of intrauterine EVs on endometrial epithelial cells (EECs) during the peri-implantation period, have not been well characterized. To elucidate global changes in proteins in EVs extracted from uterine flushings (UFs) during the pre-implantation (P17), just-implantation (P20), and post-implantation (P22) periods, the datasets of the proteome iTRAQ analysis were compared among P17, P20, and P22 EVs. These analyses revealed that the composition and function of proteins in the EVs changed dramatically during peri-implantation in cattle. Notably, intrauterine P17 EVs affected the high expression of "Developmental Biology" and "morphogenesis of an endothelium" compared with those in P20 and P22 EVs. Furthermore, P20 EVs had the functions of the high expression of "mitochondrial calcium ion homeostasis" and "Viral mRNA Translation" compared with those in P17 EVs. Transcripts extracted from EECs treated with P17, P20, or P22 EVs were subjected to RNA-seq analysis. These analyses identified 60 transcripts in EECs commonly induced by intrauterine EVs recovered from P17, P20, and P22, a large number of which were associated with "type I interferon signaling pathway". Collectively, these findings reveal the presence and multiple functions of EVs that are potentially implicated in facilitating conceptus implantation into the uterine epithelium during the peri-implantation period.
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Affiliation(s)
- Keigo Nakamura
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
- School of Veterinary Medicine, Mongolian University of Life Sciences, Ulaanbaatar 17024, Mongolia
| | - Kazuya Kusama
- Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Masatoshi Hori
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Kazuhiko Imakawa
- Research Institute of Agriculture, Tokai University, Kumamoto 862-8652, Japan
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4
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Pal A, Karanwal S, Chera JS, Batra V, Kumaresan A, Sarwalia P, Datta TK, Kumar R. Circulatory extracellular vesicle derived miR-195-5p promotes cellular apoptosis and suppresses cell proliferation in the buffalo endometrial primary cell culture. Sci Rep 2023; 13:16703. [PMID: 37794118 PMCID: PMC10551009 DOI: 10.1038/s41598-023-43530-y] [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: 06/30/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023] Open
Abstract
In pregnant animals, communication between the mother and conceptus occurs via extracellular vesicles (EVs) that carry several biomolecules such as nucleic acids (miRNAs, mRNAs), proteins, and lipids. At the time of implantation, the endometrium undergoes several morphological and physiological changes, such as angiogenesis, apoptosis, and cell proliferation regulation at the implantation site, to attain a receptive state. This study was conducted to detect pregnancy-specific miRNAs derived from extracellular vesicles in the systemic circulation of Bubalus bubalis (water buffalo) and to assess their functional significance in the modulation of endometrial primary cells. The extracellular vesicles were isolated from the blood plasma using a precipitation-based method and further characterized by various methods such as Differential light scattering, Nanoparticle tracking assay, Western blot, and transmission electron microscopy. The relative expression of the selected extracellular vesicles associated miRNAs (EV-miRNA) at different intervals (days 15, 19, 25, and 30) post artificial insemination (AI) was analyzed using RT-qPCR, and expression of miR-195-5p was found to be significantly higher (P < 0.01) in pregnant animals on day 19 post AI (implantation window) as compared to day 15 post AI. The elevated expression might indicate the involvement of this miRNA in the maternal-conceptus cross-talk occurring during the implantation period. The KEGG pathway enrichment and Gene Ontology analyses of the miR-195-5p target genes revealed that these were mostly involved in the PI3-Akt, MAPK, cell cycle, ubiquitin-mediated proteolysis, and mTOR signaling pathways, which are related to the regulation of cell proliferation. Transfecting the in vitro cultured cells with miR-195-5p mimic significantly suppressed (P < 0.05) the expression of its target genes such as YWHAQ, CDC27, AKT-3, FGF-7, MAPK8, SGK1, VEGFA, CACAND1, CUL2, MKNK1, and CACAN2D1. Furthermore, the downregulation of the miR-195-5p target genes was positively correlated with a significant increase in the apoptotic rate and a decrease in the proliferation. In conclusion, the current findings provide vital information on the presence of EV miR-195-5p in maternal circulation during the implantation window indicating its important role in the modulation of buffalo endometrium epithelial cells via promoting cell death. Altogether, the milieu of miR-195-5p may serve as a novel and potential molecular factor facilitating the implantation of the early embryo during the establishment of pregnancy in buffaloes. Thus, miR-195-5p may be identified as a unique circulatory EV biomarker related to establishing pregnancy in buffaloes as early as day 19 post-AI.
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Affiliation(s)
- Ankit Pal
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Seema Karanwal
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Jatinder Singh Chera
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Vipul Batra
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Arumugam Kumaresan
- Theriogenelogy Laboratory, SRS of National Dairy Research Institute, Bengaluru, India
| | - Parul Sarwalia
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Tirtha K Datta
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India
| | - Rakesh Kumar
- Animal Genomics Laboratory, Animal Biotechnology Centre, National Dairy Research Institute, Karnal, India.
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5
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Nakamura K, Kusama K, Hori M, Imakawa K. The effect of bta-miR-26b in intrauterine extracellular vesicles on maternal immune system during the implantation period. Biochem Biophys Res Commun 2021; 573:100-106. [PMID: 34403805 DOI: 10.1016/j.bbrc.2021.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/03/2021] [Accepted: 08/06/2021] [Indexed: 10/20/2022]
Abstract
Extracellular vesicles (EVs) in utero play a role in cellular interactions between endometrium-conceptuses (embryo plus extraembryonic membranes) during peri-implantation periods. However, how intrauterine EVs function on endometrium have not been well characterized. In our previous study, bta-miR-98 found in intrauterine EVs from uterine flushing fluids (UFs) on pregnant day 20 (a half day after initial conceptus attachment, P20) could regulate the maternal immune system and collaborate with other miRNAs and/or components of EVs for conceptus implantation. We, therefore, hypothesized that in addition to bta-miR-98, other miRNAs present in bovine intrauterine EVs may regulate the maternal immune system in the endometrial epithelium. A global analysis of differentially expressed proteins between EVs from P17 and P20 UFs revealed that components of intrauterine P20 EVs had the effect on the down-regulation of "neutrophil activation involved in immune response" and "neutrophil mediated immunity". In silico analyses predicted bta-miR-26b as one of potential miRNA to regulate maternal immune system. In our cell culture experiments, bta-miR-26b negatively regulated several immune system-related genes PSMC6, CD40, and IER3 in bovine endometrial epithelial cells. Our findings revealed that intrauterine EV-derived bta-miR-26b contributes to the down-regulation of the maternal immune system, allowing conceptus implantation to the uterine endometrium. Furthermore, our results suggest that intrauterine EVs extracted from P20 UFs could regulate neutrophils, the first line of immunological defense, to modulate endometrial immune and inflammatory responses for implanting conceptuses.
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Affiliation(s)
- Keigo Nakamura
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuya Kusama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan; Department of Endocrine Pharmacology, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan.
| | - Masatoshi Hori
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kazuhiko Imakawa
- Research Institute of Agriculture, Tokai University, Kumamoto, Japan
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6
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Qamar AY, Mahiddine FY, Bang S, Fang X, Shin ST, Kim MJ, Cho J. Extracellular Vesicle Mediated Crosstalk Between the Gametes, Conceptus, and Female Reproductive Tract. Front Vet Sci 2020; 7:589117. [PMID: 33195625 PMCID: PMC7661581 DOI: 10.3389/fvets.2020.589117] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/28/2020] [Indexed: 12/24/2022] Open
Abstract
Extracellular vesicles (EVs) mediated intracellular communication plays an imperative role in the proper completion of different physiological events. Most of the bio-fluids are enriched with several subpopulations of EVs including exosomes and microvesicles (MVs), with the capacity of transferring different functional molecules (lipids, proteins, and nucleic acids) to target cells. Recipient cells upon receiving the signal molecules undergo different changes that positively affect the structural and functional integrity of the cells. This article was aimed to highlight the role of EVs secreted by gametes, the female reproductive tract, and the growing conceptus in the successful completion of different reproductive events related to gestation. EVs associated with the reproductive system are actively involved in the regulation of different physiological events including gamete maturation, fertilization, and embryo and fetal development. In the reproductive system, EVs mediated intracellular communication is not unidirectional but is rather regulated through crosstalk between the reproductive tract and the growing conceptus. These vesicles are secreted from the ovary, oviductal epithelium, endometrium, developing embryo, and the placenta. The cargo inside these vesicles exerts pleiotropic effects on both maternal and embryonic environments. A better understanding of the EVs-mediated crosstalk will be helpful in the development of useful tools serving both the diagnostic as well as therapeutic needs related to female fertility.
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Affiliation(s)
- Ahmad Yar Qamar
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
- Department of Clinical Sciences, College of Veterinary and Animal Sciences, Jhang, Sub-Campus University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Feriel Yasmine Mahiddine
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Seonggyu Bang
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Xun Fang
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Sang Tae Shin
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Min Jung Kim
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
| | - Jongki Cho
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
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7
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D'Occhio MJ, Campanile G, Zicarelli L, Visintin JA, Baruselli PS. Adhesion molecules in gamete transport, fertilization, early embryonic development, and implantation-role in establishing a pregnancy in cattle: A review. Mol Reprod Dev 2020; 87:206-222. [PMID: 31944459 DOI: 10.1002/mrd.23312] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/19/2019] [Indexed: 12/11/2022]
Abstract
Cell-cell adhesion molecules have critically important roles in the early events of reproduction including gamete transport, sperm-oocyte interaction, embryonic development, and implantation. Major adhesion molecules involved in reproduction include cadherins, integrins, and disintegrin and metalloprotease domain-containing (ADAM) proteins. ADAMs on the surface of sperm adhere to integrins on the oocyte in the initial stages of sperm-oocyte interaction and fusion. Cadherins act in early embryos to organize the inner cell mass and trophectoderm. The trophoblast and uterine endometrial epithelium variously express cadherins, integrins, trophinin, and selectin, which achieve apposition and attachment between the elongating conceptus and uterine epithelium before implantation. An overview of the major cell-cell adhesion molecules is presented and this is followed by examples of how adhesion molecules help shape early reproductive events. The argument is made that a deeper understanding of adhesion molecules and reproduction will inform new strategies that improve embryo survival and increase the efficiency of natural mating and assisted breeding in cattle.
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Affiliation(s)
- Michael J D'Occhio
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, NSW, Australia
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - Luigi Zicarelli
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - José A Visintin
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - Pietro S Baruselli
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
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8
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Challenges in studying preimplantation embryo-maternal interaction in cattle. Theriogenology 2020; 150:139-149. [PMID: 31973965 DOI: 10.1016/j.theriogenology.2020.01.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 01/11/2020] [Indexed: 01/10/2023]
Abstract
A comprehensive understanding of the complex embryo-maternal interactions during the preimplantation period requires the analysis of the very early stages of pregnancy encompassing early embryonic development, maternal recognition and the events leading to implantation. Despite the fact that embryo development until blastocyst stage is somewhat autonomous (i.e., does not require contact with the maternal reproductive tract and can be successfully recapitulated in vitro), many studies on ruminant embryo production have focused on the fundamental question of why: (i) only 30%-40% of immature oocytes develop to the blastocyst stage and (ii) the quality of such blastocysts continually lags behind that of blastocysts produced in vivo. Clear evidence indicates that in vitro culture conditions are far from optimal with deficiencies being manifested in short- and long-term effects on the embryo. Thus, enhanced knowledge of mechanisms controlling embryo-maternal interactions would allow the design of novel strategies to improve in vitro embryo conditions and reproductive outcomes in cattle.
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9
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Yang D, Jiang T, Liu J, Zhang B, Lin P, Chen H, Zhou D, Tang K, Wang A, Jin Y. CREB3 regulatory factor -mTOR-autophagy regulates goat endometrial function during early pregnancy. Biol Reprod 2019; 98:713-721. [PMID: 29447354 DOI: 10.1093/biolre/ioy044] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 02/12/2018] [Indexed: 02/06/2023] Open
Abstract
In domestic ruminants, a receptive endometrium is crucial for successful pregnancy. Although many essential molecular modulators and pathways have been identified during early pregnancy, the precise mechanisms regulating goat endometrial function remains largely unknown. Here, we describe a novel regulator during early pregnancy, whereby hormones increased CREB3 regulatory factor (CREBRF) expression and act as a potential activator of autophagy in endometrial epithelial cells (EECs) via the mTOR pathway. Our results showed that knockdown of CREBRF via shCREBRF hampered EECs proliferation by S-phase cell cycle arrest and significantly inhibited endometrial function. We also reported that CREBRF-mTOR-autophagy pathway plays a vital role in regulating endometrial function, with a blockade of the mTOR by rapamycin demonstrating the regulatory function on prostaglandin (PGs) secretion and cell attachment in EECs. Moreover, chloroquine pretreatment also proved the above conclusion. Collectively, our findings provide new insight into the molecular mechanisms of goat endometrial function and indicate that the CREBRF-mTOR-autophagy pathway plays a central role in PGs secretion and cell attachment.
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Affiliation(s)
- Diqi Yang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Tingting Jiang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jianguo Liu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Beibei Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Pengfei Lin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Huatao Chen
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Dong Zhou
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Keqiong Tang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Aihua Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yaping Jin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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10
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Imakawa K, Bai R, Kusama K. Integration of molecules to construct the processes of conceptus implantation to the maternal endometrium. J Anim Sci 2018; 96:3009-3021. [PMID: 29554266 DOI: 10.1093/jas/sky103] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 03/15/2018] [Indexed: 12/22/2022] Open
Abstract
During the peri-implantation period, ruminant conceptuses go through rapid elongation, followed by their attachment to the uterine endometrial epithelial cells, during which interferon-tau (IFNT), a trophectodermal cytokine required for the process of maternal recognition of pregnancy, is expressed in a temporal and spatial manner. On day 22 (day 0 = day of estrus), 2 to 3 d after the initiation of bovine conceptus attachment to the uterine epithelium, when IFNT production begins to subside, the expression of molecules related to epithelial-mesenchymal transition, zinc finger E-box binding homeobox 1, snail family transcriptional repressor 2, N-cadherin, and vimentin was found in the trophectoderm. Through the use of in vitro coculture system with bovine trophoblast CT-1 and endometrial epithelial cells, a series of experiments have been conducted to elucidate mechanisms associated with the regulation of IFNT gene transcription and conceptus implantation, including epithelial-mesenchymal transition processes. Expression of IFNT, both up- and downregulation, during the peri-implantation period is tightly controlled. Cytokines and cell adhesion molecules such as epidermal growth factor, basic fibroblast growth factor, transforming growth factor beta, activin A, L-selectin-podocalyxin, and vascular cell adhesion molecule 1-integrin α4 expressed in utero all contribute to the initiation of epithelial-mesenchymal transition in the trophectoderm. These results indicate that conceptus implantation to the uterine endometrium proceeds while elongated conceptuses and endometria express cell adhesion molecules and their receptors, and the trophectoderm experiences epithelial-mesenchymal transition. Data accumulated suggest that while the conceptus and the endometrial epithelium adhere, trophectodermal cells must gain more flexibility for binucleate and possibly trinucleate cell formation during the peri-implantation period, and that understanding and constructing the conditions throughout implantation processes is key to improving ruminants' fertility.
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Affiliation(s)
- K Imakawa
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ago, Kasama, Ibaraki, Japan
| | - R Bai
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ago, Kasama, Ibaraki, Japan
| | - K Kusama
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ago, Kasama, Ibaraki, Japan
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11
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Yang D, Jiang T, Liu J, Hong J, Lin P, Chen H, Zhou D, Tang K, Wang A, Jin Y. Hormone regulates endometrial function via cooperation of endoplasmic reticulum stress and mTOR-autophagy. J Cell Physiol 2018; 233:6644-6659. [PMID: 29206294 DOI: 10.1002/jcp.26315] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 12/03/2017] [Indexed: 12/18/2022]
Abstract
In ruminant, the receptive endometrium and the elongation of the hatched blastocyst are required to complete the process of implantation. However, the mechanisms regulating goat endometrial function during the peri-implantation period of pregnancy are still unclear. In this study, EECs were treated with progesterone, estradiol, and interferon-tau (IFNT). We have found that endoplasmic reticulum (ER) stress was activated under hormones treatment. To identify the cellular mechanism of regulation of endometrial function, we investigated the effect of ER stress activator thapsigargin (TG) and inhibitor 4 phenyl butyric acid (4-PBA) on EECs. We found that TG, which activated the three branches of UPR, increased the expression of genes associated with promoting conceptus elongation and cellular attachment, significantly up-regulated the spheroid attachment rate and PGE2 /PGF2α ratio. 4-PBA pre-treatment inhibited UPR and inhibited promoting conceptus elongation and cellular attachment related genes, but the spheroid attachment rate and PGE2 /PGF2α ratio were not changed significantly. Moreover, knockdown of ATF6 via shATF6 promoted the conceptus elongation related genes, but increased the dissolution of the corpus luteum. Besides, blocking ATF6 attenuated autophagy by activating mammalian target of rapamycin (mTOR) pathway. Moreover, rapamycin (mTOR inhibitor) pre-treatment inhibited the expression of promoting conceptus elongation and increased PGE2 /PGF2α ratio. Taken together, our study indicated that physiological level of ER stress may contribute to early pregnancy success, and ATF6 signaling pathway cooperated with autophagy to regulate endometrial function by modulating mTOR pathway.
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Affiliation(s)
- Diqi Yang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Tingting Jiang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jianguo Liu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jin Hong
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Pengfei Lin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Huatao Chen
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Dong Zhou
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Keqiong Tang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Aihua Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yaping Jin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China.,Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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12
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Loch C, Haeger JD, Pfarrer C. IFNτ mediates chemotaxis, motility, metabolism and CK18 downregulation in bovine trophoblast cells in vitro via STAT1 and MAPK42/44 signaling. Placenta 2018; 64:17-26. [DOI: 10.1016/j.placenta.2018.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/19/2018] [Accepted: 02/19/2018] [Indexed: 10/18/2022]
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13
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Bai R, Kusama K, Nakamura K, Sakurai T, Kimura K, Ideta A, Aoyagi Y, Imakawa K. Down-regulation of transcription factor OVOL2 contributes to epithelial-mesenchymal transition in a noninvasive type of trophoblast implantation to the maternal endometrium. FASEB J 2018; 32:3371-3384. [PMID: 29394105 DOI: 10.1096/fj.201701131rr] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Embryo implantation into the uterine endometrium is required for pregnancy establishment in most mammals. By using global expression analysis, we investigated the molecules that are related to epithelial-mesenchymal transition (EMT) in noninvasive bovine trophoblasts and found that the transcription factor, ovo-like zinc finger 2 ( OVOL2), which is essential for mesenchymal-epithelial transition in various cancers, was down-regulated after trophoblast attachment to the endometrial epithelium in utero. In cultured bovine trophoblast cells, OVOL2 down-regulation occurred only when cells were allowed to attach to bovine endometrial epithelial cells via the TEAD3/YAP signaling pathway. This resulted in the up-regulation of the EMT-associated transcription factors, ZEB1 and SNAI2, and the mesenchymal cell markers, N-cadherin ( CDH2) and vimentin ( VIM), whereas epithelial cell marker, E-cadherin ( CDH1), was down-regulated. In contrast, OVOL2 overexpression in bovine trophoblast cells exhibited a decrease in ZEB1 transcripts and an increase in E-cadherin. These observations revealed that ovo-like protein (OVOL)2 down-regulation occurred concurrently with conceptus implantation into the uterine endometrium via the YAP/TEAD3 signaling pathway, and suggest that the down-regulation of OVOL2 expression contributes to the up-regulation of EMT-related transcription factor expression, which enables EMT progression in the noninvasive bovine trophectoderm postimplantation.-Bai, R., Kusama, K., Nakamura, K., Sakurai, T., Kimura, K., Ideta, A., Aoyagi, Y., Imakawa, K. Down-regulation of transcription factor OVOL2 contributes to epithelial-mesenchymal transition in a noninvasive type of trophoblast implantation to the maternal endometrium.
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Affiliation(s)
- Rulan Bai
- Animal Resource Science Center, Graduate School of Agricultural and Life Science, The University of Tokyo, Kasama, Japan
| | - Kazuya Kusama
- Animal Resource Science Center, Graduate School of Agricultural and Life Science, The University of Tokyo, Kasama, Japan
| | - Keigo Nakamura
- Animal Resource Science Center, Graduate School of Agricultural and Life Science, The University of Tokyo, Kasama, Japan
| | - Toshihiro Sakurai
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Japan
| | - Koji Kimura
- Graduate School of Environmental and Life Science, Okayama University, Okayama, Japan
| | | | | | - Kazuhiko Imakawa
- Animal Resource Science Center, Graduate School of Agricultural and Life Science, The University of Tokyo, Kasama, Japan
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14
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Kusama K, Nakamura K, Bai R, Nagaoka K, Sakurai T, Imakawa K. Intrauterine exosomes are required for bovine conceptus implantation. Biochem Biophys Res Commun 2017; 495:1370-1375. [PMID: 29196267 DOI: 10.1016/j.bbrc.2017.11.176] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 11/28/2017] [Indexed: 10/18/2022]
Abstract
Exosomes, extracellular vesicles, are present in uterine flushing fluids (UFs), which are involved in conceptus-endometrial interactions during peri-implantation periods. Despite several studies on intrauterine exosomes conducted, the roles conceptus and endometrial exosomes play during peri-implantation periods have not been well characterized. To investigate the effect of bovine intrauterine exosomes on conceptus implantation, exosomes isolated from bovine UFs during peri-implantation periods were subjected to global protein analysis. The analysis detected 596 exosomal proteins, including ruminants' pregnancy recognition factor IFNT, and 172 differentially expressed proteins with more than 1.5-fold changes in UFs on days 17, 20 and 22 pregnancy (day of conceptus implantation is initiated on days 19-19.5). Treatment of primary bovine endometrial epithelial cells with exosomes from day 17 UFs up-regulated the expression of apoptosis-related genes, and treatment with exosomes from day 20 and 22 UFs up-regulated the expression of adhesion molecule. Based on these findings, intrauterine exosomes should be considered as an essential constituent for successful implantation.
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Affiliation(s)
- Kazuya Kusama
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, 319-0206, Japan
| | - Keigo Nakamura
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, 319-0206, Japan
| | - Rulan Bai
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, 319-0206, Japan
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Toshihiro Sakurai
- Department of Occupational and Environmental Health, Faculty of Pharmaceutical Science, Tokyo University of Science, Chiba, 278-8510, Japan
| | - Kazuhiko Imakawa
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, 319-0206, Japan.
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15
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Novel endogenous retrovirus-derived transcript expressed in the bovine placenta is regulated by WNT signaling. Biochem J 2017; 474:3499-3512. [PMID: 28899944 PMCID: PMC5633919 DOI: 10.1042/bcj20170531] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/22/2017] [Accepted: 09/07/2017] [Indexed: 01/11/2023]
Abstract
Endogenous retroviruses (ERVs) are involved in placentation; perhaps, the most well-known ERVs are the syncytins, actively transcribed env genes involved in cell–cell fusion and possible morphological variations. However, ERVs other than syncytins that play an important role in placental development have not been well characterized. To identify ERV genes expressed during the onset of placentation in the bovine species, we characterized the expression profiles of bovine conceptus transcripts during the peri-attachment period using RNA-seq analysis, and confirming some candidates through real-time PCR. Using in silico and PCR analyses, we identified a novel ERV proviral sequence derived from a gag region, designated bovine endogenous retroviruses (BERV)-K3, containing Gag_p10 and Gag_p24, zinc finger domain. Initial expression of this ERV in bovine conceptuses was on day 20 (day 0 = day of estrus), soon after conceptus attachment to the endometrial epithelium, and its high placental expression was maintained up to the middle of pregnancy. The BERV-K3 transcript was also found in the uterine luminal and glandular epithelia, liver, kidney, intestine, and skin. BERV-K3 is located on chromosome 7 and integrated within LOC100848658, from which noncoding RNA could be transcribed. Furthermore, the expression of endogenous BERV-K3 in bovine trophoblast cell lines was induced by a WNT agonist, a signaling system common to genes expressed in placentas. These data support the argument that during the evolutionary process, mammals incorporated not only similar ERV sequences, but also ERVs unique to individual species. BERV-K3 is in the latter case, likely providing functions unique to ruminant gestation.
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16
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Reinholt BM, Bradley JS, Jacobs RD, Ealy AD, Johnson SE. Tissue organization alters gene expression in equine induced trophectoderm cells. Gen Comp Endocrinol 2017; 247:174-182. [PMID: 28161437 DOI: 10.1016/j.ygcen.2017.01.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 01/26/2017] [Accepted: 01/29/2017] [Indexed: 12/29/2022]
Abstract
Rapid morphological and gene expression changes occur during the early formation of a mammalian blastocyst. Critical to successful retention of the blastocyst and pregnancy is a functional trophectoderm (TE) that supplies the developing embryo with paracrine factors and hormones. The contribution of TE conformational changes to gene expression was examined in equine induced trophoblast (iTr) cells. Equine iTr cells were cultured as monolayers or in suspension to form spheres. The spheres are hollow and structurally reminiscent of native equine blastocysts. Total RNA was isolated from iTr monolayers and spheres and analyzed by RNA sequencing. An average of 32.2 and 31million aligned reads were analyzed for the spheres and monolayers, respectively. Forty-four genes were unique to monolayers and 45 genes were expressed only in spheres. Conformation did not affect expression of CDX2, POU5F1, TEAD4, ETS2, ELF3, GATA2 or TFAP2A, the core gene network of native TE. Bioinformatic analysis was used to identify classes of genes differentially expressed in response to changes in tissue shape. In both iTr spheres and monolayers, the majority of the differentially expressed genes were associated with binding activity in cellular, developmental and metabolic processes. Inherent to protein:protein interactions, several receptor-ligand families were identified in iTr cells with enrichment of genes coding for PI3-kinase and MAPK signaling intermediates. Our results provide evidence for ligand initiated kinase signaling pathways that underlie early trophectoderm structural changes.
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Affiliation(s)
- Brad M Reinholt
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Jennifer S Bradley
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Robert D Jacobs
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Alan D Ealy
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
| | - Sally E Johnson
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States.
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17
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Imakawa K, Bai R, Nakamura K, Kusama K. Thirty years of interferon-tau research; Past, present and future perspective. Anim Sci J 2017; 88:927-936. [DOI: 10.1111/asj.12807] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/06/2017] [Indexed: 01/15/2023]
Affiliation(s)
- Kazuhiko Imakawa
- Animal Resource Science Center; Graduate School of Agricultural and Life Sciences; the University of Tokyo; Kasama Ibaraki Japan
| | - Rulan Bai
- Animal Resource Science Center; Graduate School of Agricultural and Life Sciences; the University of Tokyo; Kasama Ibaraki Japan
| | - Keigo Nakamura
- Animal Resource Science Center; Graduate School of Agricultural and Life Sciences; the University of Tokyo; Kasama Ibaraki Japan
| | - Kazuya Kusama
- Animal Resource Science Center; Graduate School of Agricultural and Life Sciences; the University of Tokyo; Kasama Ibaraki Japan
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18
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Talbot NC, Sparks WO, Phillips CE, Ealy AD, Powell AM, Caperna TJ, Garrett WM, Donovan DM, Blomberg LA. Bovine trophectoderm cells induced from bovine fibroblasts with induced pluripotent stem cell reprogramming factors. Mol Reprod Dev 2017; 84:468-485. [PMID: 28332752 DOI: 10.1002/mrd.22797] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/08/2017] [Indexed: 12/17/2022]
Abstract
Thirteen independent induced bovine trophectroderm (iBT) cell lines were established by reprogramming bovine fetal liver-derived fibroblasts after viral-vector transduction with either six or eight factors, including POU5F1 (OCT4), KLF4, SOX2, MYC, NANOG, LIN28, SV40 large T antigen, and hTERT. Light- and electron-microscopy analysis showed that the iBT cells had epithelial cell morphology typical of bovine trophectoderm cells. Reverse-transcription-PCR assays indicated that all of the cell lines expressed interferon-tau (IFNT) at passages 1 or 2. At later passages (≥ passage 8), however, immunoblot and antiviral activity assays revealed that more than half of the iBT cell lines had stopped expressing IFNT. Messenger RNAs specific to trophectoderm differentiation and function were found in the iBT cell lines, and 2-dimensional-gel analysis for cellular proteins showed an expression pattern similar to that of trophectoderm cell lines derived from bovine blastocysts. Integration of some of the human reprogramming factors, including POU5F1, KLF4, SOX2, MYC, NANOG, and LIN28, were detected by PCR, but their transcription was mostly absent in the iBT cell lines. Gene expression assessment of endogenous bovine reprogramming factor orthologs revealed endogenous bLIN28 and bMYC transcripts in all; bSOX2 and bNANOG in none; and bKLF4 and bPOU5F1 in less than half of the iBT cell lines. These results demonstrate that bovine trophectoderm can be induced via reprogramming factor expression from bovine liver-derived fibroblasts, although other fibroblast populations-e.g., derived from fetal thigh tissue-may produce similar results, albeit at lower frequencies.
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Affiliation(s)
- Neil C Talbot
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
| | - Wendy O Sparks
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
| | - Caitlin E Phillips
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
| | - Alan D Ealy
- Department of Animal and Poultry Sciences, Virginia Tech, Blacksburg, Virginia
| | - Anne M Powell
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
| | - Thomas J Caperna
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
| | - Wesley M Garrett
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
| | - David M Donovan
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
| | - Le Ann Blomberg
- U.S. Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory, Beltsville, Maryland
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19
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Shirozu T, Iwano H, Ogiso T, Suzuki T, Balboula AZ, Bai H, Kawahara M, Kimura K, Takahashi H, Rulan B, Kim SW, Yanagawa Y, Nagano M, Imakawa K, Takahashi M. Estrous cycle stage-dependent manner of type I interferon-stimulated genes induction in the bovine endometrium. J Reprod Dev 2017; 63:211-220. [PMID: 28239027 PMCID: PMC5481623 DOI: 10.1262/jrd.2016-176] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Interferon tau (IFN-τ) is a ruminant-specific type I IFN secreted by a conceptus before its attachment to the uterus. IFN-τ induces the expression of IFN-stimulated genes (ISGs) via the type I IFN receptor (IFNAR), which is
composed of IFNAR1 and IFNAR2 subunits in the endometrium. However, expression patterns of IFNARs during the estrous cycle have not been reported. We hypothesized that the response to a type I IFN changes along with IFNARs and the
IFN-regulatory factors (IRFs) driving transcription of IFN signal-related genes and modulating a type I IFN signal during the estrous cycle. We investigated the estrous cycle stage-dependent type I IFN induction of ISGs and
expression patterns of IFN signal-related genes in bovine endometrial tissues. Endometrial tissue pieces collected from bovine uteri at each estrous stage (early, mid, and late) were cultured with or without recombinant bovine
IFN-α or concentrated pregnant uterine flushing (PUF) on day 18 after confirming the presence of a conceptus. IFN-α and PUF each significantly increased the expression of ISGs in endometrial tissues. The induction levels of the
typical ISGs (MX1-a and ISG15) were significantly higher at the mid stage and correlated with high expression of IRFs at the mid stage. The immunostaining of IFNARs showed strong
fluorescence intensities in luminal and glandular epithelia at the early and mid stages. Collectively, these results suggest that the endometrium exhibits estrous cycle stage-dependent responsiveness to type I IFN that may be
associated with the expression of IFNARs and IRFs for pregnancy recognition.
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Affiliation(s)
- Takahiro Shirozu
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Hiroki Iwano
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Takatoshi Ogiso
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Toshiyuki Suzuki
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Ahmed Z Balboula
- Department of Theriogenology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Hanako Bai
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Manabu Kawahara
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
| | - Koji Kimura
- Laboratory of Reproductive Physiology, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Hitomi Takahashi
- Animal Breeding and Reproduction Research Division, NARO Institute of Livestock and Grassland Science, Ibaraki 305-8517, Japan
| | - Bai Rulan
- Laboratory of Animal Breeding, Veterinary Medical Sciences, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo 113-8657, Japan
| | - Sung-Woo Kim
- National Institute of Animal Science, Animal Genetic Resources Research Center, Namwon 590-832, Republic of Korea
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-8589, Japan
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido 060-8589, Japan
| | - Kazuhiko Imakawa
- Laboratory of Animal Breeding, Veterinary Medical Sciences, Graduate School of Agricultural and Life Science, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masashi Takahashi
- Laboratory of Animal Genetics and Reproduction, Department of Animal Science, Research Faculty of Agriculture, Hokkaido University, Hokkaido 060-8589, Japan
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Derivation of Induced Trophoblast Cell Lines in Cattle by Doxycycline-Inducible piggyBac Vectors. PLoS One 2016; 11:e0167550. [PMID: 27907214 PMCID: PMC5132304 DOI: 10.1371/journal.pone.0167550] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 11/16/2016] [Indexed: 01/24/2023] Open
Abstract
Trophectoderm lineage specification is one of the earliest differentiation events in mammalian development. The trophoblast lineage, which is derived from the trophectoderm, mediates implantation and placental formation. However, the processes involved in trophoblastic differentiation and placental formation in cattle remain unclear due to interspecies differences when compared with other model systems and the small repertoire of available trophoblast cell lines. Here, we describe the generation of trophoblast cell lines (biTBCs) from bovine amnion-derived cells (bADCs) using an induced pluripotent stem cell technique. bADCs were introduced with piggyBac vectors containing doxycycline (Dox)-inducible transcription factors (Oct3⁄4(POU5F1), Sox2, Klf4, and c-Myc). Colonies that appeared showed a flattened epithelial-like morphology similar to cobblestones, had a more definite cell boundary between cells, and frequently formed balloon-like spheroids similar to trophoblastic vesicles (TVs). biTBCs were propagated for over 60 passages and expressed trophoblast-related (CDX2, ELF5, ERRβ, and IFN-τ) and pluripotency-related genes (endogenous OCT3/4, SOX2, KLF4, and c-MYC). Furthermore, when biTBCs were induced to differentiate by removing Dox from culture, they formed binucleate cells and began to express pregnancy-related genes (PL, PRP1, and PAG1). This is the first report demonstrating that the induction of pluripotency in bovine amniotic cells allows the generation of trophoblastic cell lines that possess trophoblast stem cell-like characteristics and have the potential to differentiate into the extra-embryonic cell lineage. These cell lines can be a new cell source as a model for studying trophoblast cell lineages and implantation processes in cattle.
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21
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Kusama K, Bai R, Ideta A, Aoyagi Y, Okuda K, Imakawa K. Regulation of epithelial to mesenchymal transition in bovine conceptuses through the interaction between follistatin and activin A. Mol Cell Endocrinol 2016; 434:81-92. [PMID: 27321969 DOI: 10.1016/j.mce.2016.06.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/13/2016] [Accepted: 06/14/2016] [Indexed: 11/25/2022]
Abstract
Dynamic changes in bovine conceptus and endometrium occur during early gestation, in which the conceptus undergoes epithelial to mesenchymal transition (EMT) after the conceptus attachment to endometrium. To characterize EMT inducing factors, we initially undertook iTRAQ analysis with bovine uterine flushing (UF) obtained from pregnant animals on days 17 (P17: pre-attachment) and 20 (P20: post-attachment). The iTRAQ analysis demonstrated that follistatin (FST), an inhibitor of activin A, increased in P20 UF. We then found that FST decreased in P22 conceptuses, whereas elevated activin A found in P20 UF and endometria was further increased on P22. In addition, phosphorylated SMAD2 increased in P22 conceptuses. In bovine trophoblast cells, the treatment with P22 UF or activin An up-regulated EMT marker expressions, which were inhibited by FST. These results suggest that the initiation of bovine conceptus EMT could be regulated through the spatiotemporal expression of FST or activin A during the peri-attachment period.
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Affiliation(s)
- Kazuya Kusama
- Laboratory of Theriogenology and Animal Breeding, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Rulan Bai
- Laboratory of Theriogenology and Animal Breeding, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Atsushi Ideta
- Zennoh Embryo Transfer Center, Hokkaido, 080-1407, Japan
| | - Yoshito Aoyagi
- Zennoh Embryo Transfer Center, Hokkaido, 080-1407, Japan
| | - Kiyoshi Okuda
- Laboratory of Reproductive Endocrinology, Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Kazuhiko Imakawa
- Laboratory of Theriogenology and Animal Breeding, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan; Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, 319-0206, Japan.
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22
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The bovine endometrial epithelial cells promote the differentiation of trophoblast stem-like cells to binucleate trophoblast cells. Cytotechnology 2016; 68:2687-2698. [PMID: 27473847 DOI: 10.1007/s10616-016-9994-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 06/07/2016] [Indexed: 10/21/2022] Open
Abstract
Endometrial epithelial cells (EECs) cultured in vitro are valuable tools for investigating embryo implantation and trophoblast differentiation. In this study, we have established the bovine EECs and trophoblast stem-like (TS) coculture system, and used it to investigate the binucleate cell formation of ungulates. The EECs was derived from the uterine horn ipsilateral to the corpus luteum by using collagenase I and deoxyribonuclease I, which exhibited typical epithelial morphology and were expressing bovine uterine epithelial marker such as IFNAR1, IFNAR2, Erα, PGR, ESR1 and KRT18. The cells immunostained positively by epithelial and trophectoderm marker cytokeratin 18 (KRT18) and stromal marker vimentin antibodies, and the KRT18 positive cells reached 99 %. The EECs can be cultured for up to 20 passages in vitro with no significant morphology changes and uterine epithelial marker gene expression alteration. The bTS cells were established in a dual inhibitor system and exhibited typical trophoblast stem cell characteristics. When bTS cells were cultured with EECs, the bTS cells adhered to the EECs as adhering to feeder cells. Binucleate cells began appearing on day 4 of coculture and reached approximately 18.47 % of the differentiated cells. Quantitative real-time PCR or immunofluorescence analyses were performed on bTS cells cocultured at day 6 and day 12. The results showed that the expression level of KRT18 was down-regulated while the expression level of trophoblast differentiation marker MASH2, HAND1, GCM1 and CDX2 was up-regulated in bTS cells. In conclusion, bovine EECs can be obtained from the uterine horn ipsilateral to the corpus luteum via treatment with collagenase I and deoxyribonuclease I, and the EECs-bTS cells coculture system presents an ideal tool for studying the differentiation of bTS cells to trophoblast binucleate cells.
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23
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Induction of IFNT-Stimulated Genes by Conceptus-Derived Exosomes during the Attachment Period. PLoS One 2016; 11:e0158278. [PMID: 27351483 PMCID: PMC4924817 DOI: 10.1371/journal.pone.0158278] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 06/13/2016] [Indexed: 12/18/2022] Open
Abstract
Biochemical and/or physical communication between the conceptus and the uterine endometrium is required for conceptus implantation to the maternal endometrium, leading to placentation and the establishment of pregnancy. We previously reported that in vitro co-culture system with bovine trophoblast CT-1 cells, primary uterine endometrial epithelial cells (EECs), and uterine flushings (UFs) mimics in vivo conceptus attachment process. To identify molecules in UFs responsible for this change, we first characterized protein contents of UFs from day 17 cyclic (C17) and pregnant (P17) ewes through the use of two dimensional-Polyacrylamide Gel Electrophoresis (2D-PAGE), followed by Liquid Chromatography-tandem Mass Spectrometry (LC-MS/MS) analysis. These analyses identified 266 proteins specific for P17 UFs, from which 172 proteins were identified as exosomal proteins. Among 172 exosomal proteins, 8 proteins that had been identified as exosomal proteins were chosen for further analysis, including macrophage-capping protein (CAPG), aldo-keto reductase family 1, member B1 protein (AKR1B1), bcl-2-like protein 15 (BCL2L15), carbonic anhydrase 2 (CA2), isocitrate dehydrogenase 2 (IDH2), eukaryotic translation elongation factor 2 (EEF2), moesin (MSN), and ezrin (EZR). CAPG and AKR1B1 were again confirmed in P15 and P17 UFs, and more importantly CAPG and AKR1B1, mRNA and protein, were found only in P15 and P17 conceptuses. Moreover, exosomes were isolated from C15, C17, P15, or P17 UFs. Only P15 and P17 exosomes, originated from the conceptus, contained interferon tau (IFNT) as well as CAPG and AKR1B1, and up-regulated STAT1, STAT2, MX1, MX2, BST2, and ISG15 transcripts in EECs. These observations indicate that in addition to endometrial derived exosomes previously described, conceptus-derived exosomes are present in UFs and could function to modify endometrial response. These results suggest that exosomes secreted from conceptuses as well as endometria are involved in cell to cell interactions for conceptus implantation to the maternal endometrium.
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The bovine placenta in vivo and in vitro. Theriogenology 2016; 86:306-12. [PMID: 27155733 DOI: 10.1016/j.theriogenology.2016.04.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 02/04/2016] [Accepted: 03/23/2016] [Indexed: 01/30/2023]
Abstract
The gross anatomic features (cotyledonary type) and histologic classification (synepitheliochorial) of the bovine placenta have been known for many years. Thorough ultrastructural analysis as well as a variety of descriptive studies dealing with the localization of cytoskeletal filaments, extracellular matrix, growth factor systems, steroid hormone receptors, and major histocompatibility complex have contributed further significant knowledge. However, this knowledge was not sufficient to solve clinical placenta-based problems, such as retained fetal membranes. Owing to the complexity of the fetomaternal interface in vitro, culture systems have been developed. As trophoblast giant cells (TGC) are thought to be key players in the cattle placenta, most cell culture models attempt to overcome the pitfall of losing the entire TGC population in vitro. Nevertheless, distinct cell line-based in vitro systems such as cell monolayers or 3-dimensional (co-culture) spheroids were generated for the fetal (trophoblast) and maternal (uterine epithelium) placental compartments. Monolayers have been used to study for example, growth factor or hormonal signaling and TGC formation, whereas spheroids served as models for, for example, trophoblast attachment, uterine epithelium depolarization, and also TGC formation. In the future, the use of more improved culture models might lead to better treatments of retained fetal membranes and increased prevention of embryonic loss. In addition, the in vitro models could shed more light on the mechanisms of the differentiation of uninucleate trophoblast into TGC.
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Hue I. Determinant molecular markers for peri-gastrulating bovine embryo development. Reprod Fertil Dev 2016; 28:51-65. [DOI: 10.1071/rd15355] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Peri-gastrulation defines the time frame between blastocyst formation and implantation that also corresponds in cattle to elongation, pregnancy recognition and uterine secretion. Optimally, this developmental window prepares the conceptus for implantation, placenta formation and fetal development. However, this is a highly sensitive period, as evidenced by the incidence of embryo loss or early post-implantation mortality after AI, embryo transfer or somatic cell nuclear transfer. Elongation markers have often been used within this time frame to assess developmental defects or delays, originating either from the embryo, the uterus or the dam. Comparatively, gastrulation markers have not received great attention, although elongation and gastrulation are linked by reciprocal interactions at the molecular and cellular levels. To make this clearer, this peri-gastrulating period is described herein with a focus on its main developmental landmarks, and the resilience of the landmarks in the face of biotechnologies is questioned.
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Haeger JD, Hambruch N, Dantzer V, Hoelker M, Schellander K, Klisch K, Pfarrer C. Changes in endometrial ezrin and cytokeratin 18 expression during bovine implantation and in caruncular endometrial spheroids in vitro. Placenta 2015; 36:821-31. [DOI: 10.1016/j.placenta.2015.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 05/19/2015] [Accepted: 06/06/2015] [Indexed: 11/25/2022]
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Bai R, Kusama K, Sakurai T, Bai H, Wang C, Zhang J, Kuse M, Ideta A, Aoyagi Y, Okuda K, Imakawa K. The Role of Endometrial Selectins and Their Ligands on Bovine Conceptus Attachment to the Uterine Epithelium During Peri-Implantation Period1. Biol Reprod 2015; 93:46. [DOI: 10.1095/biolreprod.115.128652] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/25/2015] [Indexed: 11/01/2022] Open
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Imakawa K, Bai R, Fujiwara H, Kusama K. Conceptus implantation and placentation: molecules related to epithelial-mesenchymal transition, lymphocyte homing, endogenous retroviruses, and exosomes. Reprod Med Biol 2015; 15:1-11. [PMID: 29259417 DOI: 10.1007/s12522-015-0215-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 07/01/2015] [Indexed: 01/09/2023] Open
Abstract
Processes of conceptus implantation and placentation, unique to mammalian reproduction, have been extensively studied. It was once thought that processes of these events varied greatly, notably between invasive and noninvasive modes of implantation and/or placentation. Regardless of the mode of implantation, however, physiological and biochemical processes in conceptus implantation to the maternal endometrium including the kinds of gene expression and their products are now considered not to differ so much. Recent progress has identified that in addition to the hormones, cytokines, proteases and cell adhesion molecules classically characterized, epithelial-mesenchymal transition, molecules related to lymphocyte homing, the expression of endogenous retroviruses and possibly exosomes are all required for the progression of conceptus implantation to placentation. In this review, therefore, new findings related to these events are integrated into the context of conceptus implantation to the maternal endometrium.
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Affiliation(s)
- Kazuhiko Imakawa
- Laboratory of Theriogenology and Animal Breeding, Graduate School of Agricultural and Life SciencesThe University of Tokyo1-1-1 Yayoi, Bunkyo-ku 113-8657 Tokyo Japan
| | - Rulan Bai
- Laboratory of Theriogenology and Animal Breeding, Graduate School of Agricultural and Life SciencesThe University of Tokyo1-1-1 Yayoi, Bunkyo-ku 113-8657 Tokyo Japan
| | - Hiroshi Fujiwara
- Department of Obstetrics and Gynecology, Graduate School of Medicine Science Kanazawa University 920-1192 Kanazawa Japan
| | - Kazuya Kusama
- Laboratory of Theriogenology and Animal Breeding, Graduate School of Agricultural and Life SciencesThe University of Tokyo1-1-1 Yayoi, Bunkyo-ku 113-8657 Tokyo Japan
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Hue I, Evain-Brion D, Fournier T, Degrelle SA. Primary Bovine Extra-Embryonic Cultured Cells: A New Resource for the Study of In Vivo Peri-Implanting Phenotypes and Mesoderm Formation. PLoS One 2015; 10:e0127330. [PMID: 26070137 PMCID: PMC4466545 DOI: 10.1371/journal.pone.0127330] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 04/13/2015] [Indexed: 01/11/2023] Open
Abstract
In addition to nourishing the embryo, extra-embryonic tissues (EETs) contribute to early embryonic patterning, primitive hematopoiesis, and fetal health. These tissues are of major importance for human medicine, as well as for efforts to improve livestock efficiency, but they remain incompletely understood. In bovines, EETs are accessible easily, in large amounts, and prior to implantation. We took advantage of this system to describe, in vitro and in vivo, the cell types present in bovine EETs at Day 18 of development. Specifically, we characterized the gene expression patterns and phenotypes of bovine extra-embryonic ectoderm (or trophoblast; bTC), endoderm (bXEC), and mesoderm (bXMC) cells in culture and compared them to their respective in vivo micro-dissected cells. After a week of culture, certain characteristics (e.g., gene expression) of the in vitro cells were altered with respect to the in vivo cells, but we were able to identify "cores" of cell-type-specific (and substrate-independent) genes that were shared between in vitro and in vivo samples. In addition, many cellular phenotypes were cell-type-specific with regard to extracellular adhesion. We evaluated the ability of individual bXMCs to migrate and spread on micro-patterns, and observed that they easily adapted to diverse environments, similar to in vivo EE mesoderm cells, which encounter different EE epithelia to form chorion, yolk sac, and allantois. With these tissue interactions, different functions arose that were detected in silico and corroborated in vivo at D21-D25. Moreover, analysis of bXMCs allowed us to identify the EE cell ring surrounding the embryonic disc (ED) at D14-15 as mesoderm cells, which had been hypothesized but not shown prior to this study. We envision these data will serve as a major resource for the future in the analysis of peri-implanting phenotypes in response to the maternal metabolism and contribute to subsequent studies of placental/fetal development in eutherians.
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Affiliation(s)
- Isabelle Hue
- INRA, UMR1198 Biologie du Développement et Reproduction, Jouy-en-Josas, France
| | - Danièle Evain-Brion
- INSERM, UMR-S1139, U767, Faculté des Sciences Pharmaceutiques et Biologiques, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Paris, France; PremUp Foundation, Paris, France
| | - Thierry Fournier
- INSERM, UMR-S1139, U767, Faculté des Sciences Pharmaceutiques et Biologiques, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Séverine A Degrelle
- INRA, UMR1198 Biologie du Développement et Reproduction, Jouy-en-Josas, France; INSERM, UMR-S1139, U767, Faculté des Sciences Pharmaceutiques et Biologiques, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, Paris, France; PremUp Foundation, Paris, France
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Rahmati M, Petitbarat M, Dubanchet S, Bensussan A, Chaouat G, Ledee N. Granulocyte-Colony Stimulating Factor related pathways tested on an endometrial ex-vivo model. PLoS One 2014; 9:e102286. [PMID: 25275446 PMCID: PMC4183482 DOI: 10.1371/journal.pone.0102286] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 06/16/2014] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Recombinant human Granulocyte-Colony Stimulating Factor (rhG-CSF) supplementation seems to be a promising innovative therapy in reproductive medicine, used in case of recurrent miscarriage, embryo implantation failure or thin endometrium, although its mechanisms of action remain unknown. Our aim was to identify possible endometrial pathways influenced by rhG-CSF. MATERIALS AND METHODS Hypothetical molecular interactions regulated by G-CSF were designed through a previous large scale endometrial microarray study. The variation of endometrial expression of selected target genes was confirmed in control and infertile patients. G-CSF supplementation influence on these targets was tested on an endometrial ex-vivo culture. Middle luteal phase endometrial biopsies were cultured on collagen sponge with or without rhG-CSF supplementation during 3 consecutive days. Variations of endometrial mRNA expression for the selected targets were studied by RT-PCR. RESULTS At the highest dose of rhG-CSF stimulation, the mRNA expression of these selected target genes was significantly increased if compared with their expression without addition of rhG-CSF. The selected targets were G-CSF Receptor (G-CSFR), Integrin alpha-V/beta-3 (ITGB3) implicated in cell migration and embryo implantation, Plasminogen Activator Urokinase Receptor (PLAUR) described as interacting with integrins and implicated in cell migration, Thymidine Phosphorylase (TYMP) implicated in local angiogenesis, CD40 and its ligand CD40L involved in cell proliferation control. CONCLUSION RhG-CSF seems able to influence endometrial expressions crucial for implantation process involving endometrial vascular remodelling, local immune modulation and cellular adhesion pathways. These variations observed in an ex-vivo model should be tested in-vivo. The strict indications or counter indication of rhG-CSF supplementation in reproductive field are not yet established, while the safety of its administration in early pregnancy on early embryogenesis still needs to be demonstrated. Nevertheless, rhG-CSF appears as a promising therapy in some difficult and unsolved cases of reproductive failure. Indications of pre-conceptual rhG-CSF supplementation may derive from a diagnosed lack of endometrial expression of some target genes.
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Affiliation(s)
- Mona Rahmati
- Equipe “Implantation et Dialogue Cytokinique Mère-Conceptus”, UMRS-976, INSERM, Université Paris Diderot, Hopital Saint Louis, Paris, France
- Service d′Assistance Medicale a la Procreation, Hopital Pierre Rouques - Les Bluets, Paris, France
- * E-mail:
| | - Marie Petitbarat
- Equipe “Implantation et Dialogue Cytokinique Mère-Conceptus”, UMRS-976, INSERM, Université Paris Diderot, Hopital Saint Louis, Paris, France
| | - Sylvie Dubanchet
- Equipe “Implantation et Dialogue Cytokinique Mère-Conceptus”, UMRS-976, INSERM, Université Paris Diderot, Hopital Saint Louis, Paris, France
| | - Armand Bensussan
- Equipe “Implantation et Dialogue Cytokinique Mère-Conceptus”, UMRS-976, INSERM, Université Paris Diderot, Hopital Saint Louis, Paris, France
| | - Gerard Chaouat
- Equipe “Implantation et Dialogue Cytokinique Mère-Conceptus”, UMRS-976, INSERM, Université Paris Diderot, Hopital Saint Louis, Paris, France
| | - Nathalie Ledee
- Equipe “Implantation et Dialogue Cytokinique Mère-Conceptus”, UMRS-976, INSERM, Université Paris Diderot, Hopital Saint Louis, Paris, France
- Service d′Assistance Medicale a la Procreation, Hopital Pierre Rouques - Les Bluets, Paris, France
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Bai H, Sakurai T, Bai R, Yamakoshi S, Aoki E, Kuse M, Okuda K, Imakawa K. Establishment and characterization of immortalized bovine endometrial epithelial cells. Anim Sci J 2014; 85:799-804. [PMID: 24735401 PMCID: PMC4282067 DOI: 10.1111/asj.12202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 01/27/2014] [Indexed: 01/22/2023]
Abstract
Bovine primary uterine endometrial epithelial cells (EECs) are not ideal for long-term studies, because primary EECs lose hormone responsiveness quickly, and/or they tend to have a short life span. The aims of this study were to establish immortalized bovine EECs and to characterize these cells following long-term cultures. Immortalized bovine EECs were established by transfecting retroviral vectors encoding human papillomavirus (HPV) E6 and E7, and human telomerase reverse transcriptase (hTERT) genes. Established bovine immortalized EECs (imEECs) showed the same morphology as primary EECs, and could be grown without any apparent changes for over 60 passages. In addition, imEECs have maintained the features as EECs, exhibiting oxytocin (OT) and interferon tau (IFNT) responsiveness. Therefore, these imEECs, even after numbers of passages, could be used as an in vitro model to investigate cellular and molecular mechanisms, by which the uterine epithelium responds to IFNT stimulation, the event required for the maternal recognition of pregnancy in the bovine species.
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Affiliation(s)
- Hanako Bai
- Laboratory of Theriogenology and Animal Breeding, Graduate School of Agricultural and Life Science, the University of Tokyo, Tokyo
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Troja W, Kil K, Klanke C, Jones HN. Interaction between human placental microvascular endothelial cells and a model of human trophoblasts: effects on growth cycle and angiogenic profile. Physiol Rep 2014; 2:e00244. [PMID: 24760505 PMCID: PMC4002231 DOI: 10.1002/phy2.244] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 01/29/2014] [Indexed: 11/12/2022] Open
Abstract
Abstract Intrauterine growth restriction (IUGR) is a leading cause of perinatal complications, and is commonly associated with reduced placental vasculature. Recent studies demonstrated over-expression of IGF-1 in IUGR animal models maintains placental vasculature. However, the cellular environment of the placental chorionic villous is unknown. The close proximity of trophoblasts and microvascular endothelial cells in vivo alludes to autocrine/paracrine regulation following Ad-HuIGF-1 treatment. We investigated the co-culturing of BeWo Choriocarcinoma and Human Placental Microvascular Endothelial Cells (HPMVECs) on the endothelial angiogenic profile and the effect Ad-HuIGF-1 treatment of one cell has on the other. HPMVECs were isolated from human term placentas and cultured in EGM-2 at 37°C with 5% CO2. BeWo cells were maintained in Ham's F12 nutrient mix with 10% FBS and 1% pen/strep. Co-cultured HPMVECS+BeWo cells were incubated in serum-free control media, Ad-HuIGF-1, or Ad-LacZ at MOI 0 and MOI 100:1 for 48 h. Non-treated cells and mono-cultured cells were compared to co-cultured cells. Angiogenic gene expression and proliferative and apoptotic protein expression were analysed by RT-qPCR and immunocytochemistry, respectively. Statistical analyses was performed using student's t-test with P < 0.05 considered significant. Direct Ad-HuIGF-1 treatment increased HPMVEC proliferation (n = 4) and reduced apoptosis (n = 3). Co-culturing HPMVECs+BeWo cells significantly altered RNA expression of the angiogenic profile compared to mono-cultured HPMVECs (n = 8). Direct Ad-HuIGF-1 treatment significantly increased Ang-1 (n = 4) in BeWo cells. Ad-HuIGF-1 treatment of HPMVECs did not alter the RNA expression of angiogenic factors. Trophoblastic factors may play a key role in placental vascular development and IGF-1 may have an important role in HPMVEC growth.
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Affiliation(s)
- Weston Troja
- Division of Pediatric Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Kicheol Kil
- Department of Obstetrics and Gynecology, The Catholic University of Korea, Seoul, South Korea
| | - Charles Klanke
- Division of Pediatric Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Helen N. Jones
- Division of Pediatric Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- Division of Reproductive Sciences, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
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Sakurai T, Bai H, Bai R, Sato D, Arai M, Okuda K, Ideta A, Aoyagi Y, Godkin JD, Imakawa K. Down-regulation of interferon tau gene transcription with a transcription factor, EOMES. Mol Reprod Dev 2013; 80:371-83. [PMID: 23606646 DOI: 10.1002/mrd.22171] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 03/03/2013] [Indexed: 11/10/2022]
Abstract
Interferon tau (IFNT), produced for a short interval during early pregnancy by the ruminant embryonic trophectoderm, is essential for the maintenance of early pregnancy, but the mechanism by which it is transcriptionally regulated has not been fully determined. To identify a transcription factor(s) involved in the down-regulation of IFNT genes, mRNAs for various known transcription factors were investigated by reverse-transcriptase and real-time PCR in conceptus tissues collected on Days 15, 17, and 21, or Days 17, 20, and 22 of ovine or bovine pregnancy, respectively. In particular, the T-box protein eomesodermin (EOMES) exhibited high mRNA expression in Day 17 or 22 ovine or bovine conceptuses. Interaction between EOMES and the identified transcription factors was studied using transient transfection, revealing that ovine/bovine IFNT-reporter transactivation was down-regulated by EOMES. Transcription factor interactions with EOMES were further studied through immunoprecipitation, demonstrating an association between EOMES and cAMP-response element binding protein (CREB)-binding protein (CREBBP). Uterine flushing media collected from cyclic or early pregnancy animals were added to bovine trophoblast CT-1 cells cultured on type-I collagen (monoculture) or bovine uterine epithelial cells (coculture) in an attempt to regulate EOMES expression. In the coculture, but not the monoculture, addition of uterine flushing from Day 17 pregnant animals resulted in increased EOMES expression in CT-1 cells. These results suggest that as conceptuses attach to the uterine epithelium, IFNT gene transcription is down-regulated by an increase in EOMES expression and EOMES-CREBBP binding in the attached trophoblast cells.
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Affiliation(s)
- Toshihiro Sakurai
- Laboratory of Animal Breeding and Reproduction, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.
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