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Kramer AC, Erikson DW, McLendon BA, Seo H, Hayashi K, Spencer TE, Bazer FW, Burghardt RC, Johnson GA. SPP1 expression in the mouse uterus and placenta: Implications for implantation. Biol Reprod 2021; 105:892-904. [PMID: 34165144 DOI: 10.1093/biolre/ioab125] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/10/2021] [Accepted: 06/22/2021] [Indexed: 11/14/2022] Open
Abstract
Secreted phosphoprotein 1 [SPP1, also known as osteopontin (OPN)] binds integrins to mediate cell-cell and cell-extracellular matrix communication to promote cell adhesion, migration, and differentiation. Considerable evidence links SPP1 to pregnancy in several species. Current evidence suggests that SPP1 is involved in implantation and placentation in mice, but in vivo localization of SPP1 and in vivo mechanistic studies to substantiate these roles are incomplete and contradictory. We localized Spp1 mRNA and protein in the endometrium and placenta of mice throughout gestation, and utilized delayed implantation of mouse blastocysts to link SPP1 expression to the implantation chamber. Spp1 mRNA and protein localized to the endometrial luminal (LE), but not glandular epithelia (GE) in interimplantation regions of the uterus throughout gestation. Spp1 mRNA and protein also localized to uterine naturel killer (uNK) cells of the decidua. Within the implantation chamber, Spp1 mRNA localized only to intermittent LE cells, and to the inner cell mass. SPP1 protein localized to intermittent trophoblast cells, and to the parietal endoderm. These results suggest that SPP1: 1) is secreted by the LE at interimplantation sites for closure of the uterine lumen to form the implantation chamber; 2) is secreted by LE adjacent to the attaching trophoblast cells for attachment and invasion of the blastocyst; and 3) is not a component of histotroph secreted from the GE, but is secreted from uNK cells in the decidua to increase angiogenesis within the decidua to augment hemotrophic support of embryonic/fetal development of the conceptus.
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Affiliation(s)
- Avery C Kramer
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, College Station, TX, USA
| | - David W Erikson
- Endocrine Technologies Core, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA
| | - Bryan A McLendon
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, College Station, TX, USA
| | - Heewon Seo
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, College Station, TX, USA
| | - Kanako Hayashi
- School of Molecular Biosciences, Washington State University, Pullman, WA, USA
| | - Thomas E Spencer
- Department of Animal Science, University of Missouri, Columbia, MO, USA
| | - Fuller W Bazer
- Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Robert C Burghardt
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, College Station, TX, USA
| | - Greg A Johnson
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, College Station, TX, USA
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Kumar V, Maurya VK, Joshi A, Meeran SM, Jha RK. Integrin beta 8 (ITGB8) regulates embryo implantation potentially via controlling the activity of TGF-B1 in mice. Biol Reprod 2015; 92:109. [PMID: 25788663 DOI: 10.1095/biolreprod.114.122838] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 03/09/2015] [Indexed: 01/09/2023] Open
Abstract
Integrins (ITGs) are mediators of cell-cell and cell-matrix interactions, which are also associated with embryo implantation processes by controlling the interaction of blastocyst with endometrium. During early pregnancy, ITGbeta8 (ITGB8) has been shown to interact with latent transforming growth factor (TGF) beta 1 (TGFB1) at the fetomaternal interface. However, the precise role of ITGB8 in the uterus and its association with embryo implantation has not been elucidated. Therefore, we attempted to ascertain the role of ITGB8 during the window of embryo implantation process by inhibiting its function or protein expression. Uterine plasma membrane-anchored ITGB8 was augmented at peri-implantation and postimplantation stages. A similar pattern of mRNA expression was also found during the embryo implantation period. An immunolocalization study revealed the presence of ITGB8 on luminal epithelial cells along with mild expression on the stromal cells throughout the implantation period studied; however, an intense fluorescence was noted only during the peri- and postimplantation stages. Bioneutralization and mRNA silencing of the uterine Itgb8 at preimplantation stage reduced the rate/frequency of embryo implantation and subsequent pregnancy, suggesting its indispensable role during the embryo implantation period. ITGB8 can also regulate the liberation of active TGFB1 from its latent complex, which, in turn, acts on SMAD2/3 phosphorylation (activation) in the uterus during embryo implantation. This indicates involvement of ITGB8 in the embryo implantation process through regulation of activation of TGFB1.
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Affiliation(s)
- Vijay Kumar
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Vineet Kumar Maurya
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Anubha Joshi
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Syed Musthapa Meeran
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Rajesh Kumar Jha
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
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Fayazi M, Beigi Boroujeni M, Salehnia M, Khansarinejad B. Ovarian stimulation by exogenous gonadotropin decreases the implantation rate and expression of mouse blastocysts integrins. IRANIAN BIOMEDICAL JOURNAL 2014; 18:8-15. [PMID: 24375157 DOI: 10.6091/ibj.1236.2013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Integrins are heterodimeric glycoprotein receptors that regulate the interaction of cells with extracellular matrix and may have a critical role in implantation. The aim of this study was to investigate the effect of ovulation induction on the expression of α4, αv, β1, and β3 integrins in mouse blastocyst at the time of implantation. METHODS The ovarian stimulated and non-stimulated pregnant mice were sacrificed on the morning of 5th day of pregnancy. The blastocysts were collected, and the expression of αv, α4, β1, and β3 integrins was examined using real-time RT-PCR and immunocytochemical techniques, then their ovarian hormones were analyzed at the same time. The implantation sites in uterine horns of other pregnant mice in both groups were determined under a stereomicroscope on the 7th day of pregnancy. RESULTS The results showed that the expression of αv, β1, and β3 integrins in both mRNA and protein levels was significantly lower in the ovarian stimulated group than the control group, and the maximum ratio of expression was belonged to β1 molecule (P>0.05). CONCLUSION The implantation rate in superovulated mice was significantly lower than control mice. It was suggested that ovulation induction decreased the expression of αv, β1, and β3 integrins of mouse blastocysts.
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Affiliation(s)
- Mehri Fayazi
- Dept. of Anatomy, Tarbiat Modares University, Tehran, Iran.
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Holmberg JC, Haddad S, Wünsche V, Yang Y, Aldo PB, Gnainsky Y, Granot I, Dekel N, Mor G. An in vitro model for the study of human implantation. Am J Reprod Immunol 2012; 67:169-78. [PMID: 22151560 PMCID: PMC3703643 DOI: 10.1111/j.1600-0897.2011.01095.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
PROBLEM Implantation remains the rate-limiting step for the success of in vitro fertilization. Appropriate models to study the molecular aspects of human implantation are necessary in order to improve fertility. METHODS First trimester trophoblast cells are differentiated into blastocyst-like spheroids (BLS) by culturing them in low attachment plates. Immortalized human endometrial stromal cells and epithelial cells (ECC-1) were stably transfected with GFP or tdTomato. Co-culture experiments were monitored using Volocity imaging analysis system. RESULTS This method demonstrates attachment and invasion of BLS, formed by trophoblast cells, into stromal cells, but not to uterine epithelial cells. CONCLUSION We have developed an in vitro model of uterine implantation. The manipulation of this system allows for dual color monitoring of the cells over time. Additionally, specific compounds can be added to the culture media to test how this may affect implantation and invasion. This model is a helpful tool in understanding the complexity of human implantation.
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Affiliation(s)
- Jennie C. Holmberg
- Department of Obstetrics and Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven CT 06510
| | - Severina Haddad
- Department of Obstetrics and Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven CT 06510
| | - Vera Wünsche
- Department of Obstetrics and Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven CT 06510
| | - Yang Yang
- Department of Obstetrics and Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven CT 06510
| | - Paulomi B. Aldo
- Department of Obstetrics and Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven CT 06510
| | - Yulia Gnainsky
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, 76100 Israel
| | - Irit Granot
- Department of Obstetrics and Gynecology, IVF Unit, Kaplan Medical Center, Rehovot, 76100 Israel
| | - Nava Dekel
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, 76100 Israel
| | - Gil Mor
- Department of Obstetrics and Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven CT 06510
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Osteopontin and αvβ3 integrin as markers of endometrial receptivity: the effect of different hormone therapies. Reprod Biomed Online 2010; 21:349-59. [DOI: 10.1016/j.rbmo.2010.04.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 03/30/2010] [Accepted: 04/07/2010] [Indexed: 11/22/2022]
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Tajiri Y, Igarashi T, Li D, Mukai K, Suematsu M, Fukui E, Yoshizawa M, Matsumoto H. Tubulointerstitial nephritis antigen-like 1 is expressed in the uterus and binds with integrins in decidualized endometrium during postimplantation in mice. Biol Reprod 2009; 82:263-70. [PMID: 19776386 DOI: 10.1095/biolreprod.109.080028] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Extracellular matrix substrates contribute to both uterine and blastocyst functions during the peri-implantation period. Tubulointerstitial nephritis antigen-like 1 (TINAGL1, also known as adrenocortical zonation factor 1 [AZ-1] or lipocalin 7) is a novel matricellular protein that promotes cell adhesion and spreading. However, the physiological roles of TINAGL1 are still not clearly understood. We examined the expression and localization of TINAGL1 in peri-implantation mouse uteri. During the preimplantation period, TINAGL1 was expressed in the basement membranes of uterine luminal epithelial cells on Days 1 and 2 of pregnancy, while its expression levels declined after Day 3. In the whole uteri, the expression levels of Tinagl1 mRNA and TINAGL1 protein were similar on Days 1-4 of pregnancy. In contrast, the expression of Tinagl1 mRNA and TINAGL1 protein increased in postimplantation uteri. From Days 6 to 8, TINAGL1 was markedly expressed in the decidual endometrium. TINAGL1 is a ligand for integrins and promotes cell adhesion in cultured cells. Therefore, to address whether TINAGL1 interacts with integrins in the uterus, immunohistochemical analysis and immunoprecipitation were performed. Immunohistochemical analysis showed that ITGA2, ITGA5, and ITGB1 were expressed in stromal cells around the implanted embryos on Days 7 and 8. Biacore and immunoprecipitation analysis determined that TINAGL1 linked with ITGA5 and ITGB1 in the decidual endometrium. These results suggest that Tinagl1 functions during the postimplantation period; in particular, it associates with ITGA5B1 in the decidualized uterine endometrium.
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Affiliation(s)
- Yumiko Tajiri
- Laboratory of Animal Breeding and Reproduction, Division of Animal Science, Faculty of Agriculture, Utsunomiya University, Utsunomiya, Tochigi, Japan
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Mangale SS, Modi DN, Reddy KVR. Identification of genes regulated by an interaction between alphavbeta3 integrin and vitronectin in murine decidua. Reprod Fertil Dev 2008; 20:311-9. [PMID: 18255021 DOI: 10.1071/rd07155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Accepted: 11/15/2007] [Indexed: 11/23/2022] Open
Abstract
The delicate balance between embryo invasion and suppression of maternal immune rejection requires a fully functional decidua in species with haemochorial placenta. Our understanding of the decidual function is very limited due to the molecular and cellular complexity involved in decidualisation. The cell adhesion molecule alpha(v)beta(3) integrin and its ligand vitronectin are upregulated in the mouse decidua during mid-pregnancy. The implications of interactions between alpha(v)beta(3) and vitronectin in regulating decidual function are not known. In the present study, interactions between alpha(v)beta(3) and vitronectin in the decidual cells of the mouse were blocked in vitro and effects on cell fate were evaluated by studying the differentially regulated genes by cDNA array and real-time polymerase chain reaction (PCR). The results indicate that expression of various genes involved in apoptotic and cell cycle pathways, as well as cytokine receptors, was deranged. Signalling through alpha(v)beta(3) seems to be important to maintain a balance between cell proliferation and apoptosis, along with the modulation of inflammatory responses of decidual cells.
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Affiliation(s)
- S S Mangale
- Department of Immunology, National Institute for Research in Reproductive Health (ICMR), J. M. Street, Parel, Mumbai 400012, India
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Integrin activation and viral infection. Virol Sin 2008. [DOI: 10.1007/s12250-008-2886-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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