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Pei X, Zhu J, Wang Y, Zhang F, He Y, Li Y, Si Y. Placental galectins: a subfamily of galectins lose the ability to bind β-galactosides with new structural features†. Biol Reprod 2023; 109:799-811. [PMID: 37672213 DOI: 10.1093/biolre/ioad114] [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: 06/23/2023] [Revised: 08/30/2023] [Accepted: 09/06/2023] [Indexed: 09/07/2023] Open
Abstract
Galectins are a phylogenetically conserved family of soluble β-galactoside binding proteins. There are 16 different of galectins, each with a specific function determined by its distinct distribution and spatial structure. Galectin-13, galectin-14, and galectin-16 are distinct from other galectin members in that they are primarily found in placental tissue. These galectins, also referred to as placental galectins, play critical roles in regulating pregnancy-associated processes, such as placenta formation and maternal immune tolerance to the embedded embryo. The unique structural characteristics and the inability to bind lactose of placental galectins have recently received significant attention. This review primarily examines the novel structural features of placental galectins, which distinguish them from the classic galectins. Furthermore, it explores the correlation between these structural features and the loss of β-galactoside binding ability. In addition, the newly discovered functions of placental galectins in recent years are also summarized in our review. A detailed understanding of the roles of placental galectins may contribute to the discovery of new mechanisms causing numerous pregnancy diseases and enable the development of new diagnostic and therapeutic strategies for the treatment of these diseases, ultimately benefiting the health of mothers and offspring.
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Affiliation(s)
- Xuejing Pei
- Jilin Province Key Laboratory on Chemistry and Biology of Natural Drugs in Changbai Mountain, School of Life Sciences, Northeast Normal University, Changchun 130024, China
- Xuzhou Tongshan Maocun High School, Xuzhou 221135, China
| | - Jiahui Zhu
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
| | - Yuchen Wang
- Xuzhou Maternity and Child Health Care Hospital, Xuzhou 221009, China
| | - Fali Zhang
- Xuzhou Maternity and Child Health Care Hospital, Xuzhou 221009, China
| | - Yufeng He
- Xuzhou Maternity and Child Health Care Hospital, Xuzhou 221009, China
| | - Yuchun Li
- Xuzhou Maternity and Child Health Care Hospital, Xuzhou 221009, China
| | - Yunlong Si
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
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Buschmann C, Unverdorben L, Knabl J, Hutter S, Meister S, Beyer S, Burgmann M, Keilmann L, Zati zehni A, Schmoeckel E, Kessler M, Jeschke U, Mahner S, Kolben T, Ganster F, Burges A. Galectin-10 Expression in Placentas of Women with Gestational Diabetes. Curr Issues Mol Biol 2023; 45:8840-8851. [PMID: 37998731 PMCID: PMC10670440 DOI: 10.3390/cimb45110554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/25/2023] Open
Abstract
Galectins are known to play an important role in immunoregulatory processes and autoimmune diseases. Galectin-10 is a cytoplasmic protein of human eosinophils and is involved in various eosinophilic diseases. Since increased galectin expression is already detected in the placentas of mothers with gestational diabetes mellitus (GDM), this study focuses on the specific role of galectin-10 and hints at consequences for the diagnosis and therapeutic options of GDM. It is hypothesized that the difference in galectin-10 expression will raise the pathophysiological understanding of gestational diabetes. The study population consists of 80 women: 40 healthy mothers and 40 women suffering from gestational diabetes mellitus. The expression of galectin-10 was analyzed in the syncytiotrophoblast (SCT) and the decidua of the placenta via immunohistochemistry and immunofluorescence double staining. The immunoreactivity score (IRS) was used for evaluation. The results in this study were significant for an overexpression of galectin-10 in GDM placentas compared with the control group. The syncytiotrophoblast showed overexpression in the nucleus and the cytoplasm, whereas expression of galectin-10 in the decidua was significant in the cytoplasm only. This study identified the expression changes in galectin-10 in placental tissue between healthy and GDM mothers and intensified the understanding of gestational diabetes. Assuming that gestational diabetes mellitus is involved in inflammatory processes, galectin-10 might play a role in the development and maintenance of GDM. Further investigation is required to strengthen these findings.
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Affiliation(s)
- Christina Buschmann
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Laura Unverdorben
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Julia Knabl
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Stefan Hutter
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Sarah Meister
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Susanne Beyer
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Maximiliane Burgmann
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Lucia Keilmann
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Alaleh Zati zehni
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Elisa Schmoeckel
- Department of Pathology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Mirjana Kessler
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Udo Jeschke
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
- Department of Obstetrics and Gynecology, University Hospital Augsburg, 86156 Augsburg, Germany
| | - Sven Mahner
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Thomas Kolben
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Franziska Ganster
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
| | - Alexander Burges
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, 81377 Munich, Germany
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Pełech A, Ruszała M, Niebrzydowska-Tatus M, Bień K, Kimber-Trojnar Ż, Czuba M, Świstowska M, Leszczyńska-Gorzelak B. Do Serum Galectin-9 Levels in Women with Gestational Diabetes and Healthy Ones Differ before or after Delivery? A Pilot Study. Biomolecules 2023; 13:biom13040697. [PMID: 37189444 DOI: 10.3390/biom13040697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 05/17/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is a common metabolic disease that occurs during pregnancy, with the placenta playing an important role in its pathophysiology. Currently, the role of galectin-9 in the development of GDM is unknown. The aim of this study was to compare galectin-9 concentrations in healthy pregnant women and those with GDM. Galectin-9 levels were assessed in serum samples taken both just before and after delivery, as well as in urine samples collected in the postpartum period. Maternal body composition and hydration status were evaluated using the bioelectrical impedance analysis (BIA) method. There were no statistically significant differences in the concentration of galectin-9 in women with GDM compared to healthy pregnant women in their serum samples taken just before delivery, nor in their serum and urine samples collected in the early postpartum period. However, serum galectin-9 concentrations taken before delivery were positively correlated with BMI and parameters related to the amount of adipose tissue assessed in the early postpartum period. Additionally, there was a correlation between serum galectin-9 concentrations taken before and after delivery. Galectin-9 is unlikely to become a diagnostic marker for GDM. However, this subject requires further clinical research in larger groups.
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Affiliation(s)
- Aleksandra Pełech
- Department of Obstetrics and Perinatology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Monika Ruszała
- Department of Obstetrics and Perinatology, Medical University of Lublin, 20-090 Lublin, Poland
| | | | - Katarzyna Bień
- Department of Obstetrics and Perinatology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Żaneta Kimber-Trojnar
- Department of Obstetrics and Perinatology, Medical University of Lublin, 20-090 Lublin, Poland
| | - Monika Czuba
- Department of Clinical Genetics, Medical University of Lublin, 20-080 Lublin, Poland
| | - Małgorzata Świstowska
- Department of Clinical Genetics, Medical University of Lublin, 20-080 Lublin, Poland
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Chen M, Shi JL, Zheng ZM, Lin Z, Li MQ, Shao J. Galectins: Important Regulators in Normal and Pathologic Pregnancies. Int J Mol Sci 2022; 23:ijms231710110. [PMID: 36077508 PMCID: PMC9456357 DOI: 10.3390/ijms231710110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
Galectins (Gal) are characterized by their affinity for galactoside structures on glycoconjugates. This relationship is mediated by carbohydrate recognition domains, which are multifunctional regulators of basic cellular biological processes with high structural similarity among family members. They participate in both innate and adaptive immune responses, as well as in reproductive immunology. Recently, the discovery that galectins are highly expressed at the maternal–fetal interface has garnerd the interest of experts in human reproduction. Galectins are involved in a variety of functions such as maternal–fetal immune tolerance, angiogenesis, trophoblast invasion and placental development and are considered to be important mediators of successful embryo implantation and during pregnancy. Dysregulation of these galectins is associated with abnormal and pathological pregnancies (e.g., preeclampsia, gestational diabetes mellitus, fetal growth restriction, preterm birth). Our work reviews the regulatory mechanisms of galectins in normal and pathological pregnancies and has implications for clinicians in the prevention, diagnosis and treatment of pregnancy-related diseases.
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Affiliation(s)
- Min Chen
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
| | - Jia-Lu Shi
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
| | - Zi-Meng Zheng
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
| | - Zhi Lin
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Fudan University, Shanghai 201203, China
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai 200080, China
- Correspondence: (M.-Q.L.); (J.S.)
| | - Jun Shao
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200080, China
- Department of Obstetrics, Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200011, China
- Correspondence: (M.-Q.L.); (J.S.)
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Jovanović Krivokuća M, Vilotić A, Nacka-Aleksić M, Pirković A, Ćujić D, Legner J, Dekanski D, Bojić-Trbojević Ž. Galectins in Early Pregnancy and Pregnancy-Associated Pathologies. Int J Mol Sci 2021; 23:69. [PMID: 35008499 PMCID: PMC8744741 DOI: 10.3390/ijms23010069] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 12/30/2022] Open
Abstract
Galectins are a family of conserved soluble proteins defined by an affinity for β-galactoside structures present on various glycoconjugates. Over the past few decades, galectins have been recognized as important factors for successful implantation and maintenance of pregnancy. An increasing number of studies have demonstrated their involvement in trophoblast cell function and placental development. In addition, several lines of evidence suggest their important roles in feto-maternal immune tolerance regulation and angiogenesis. Changed or dysregulated galectin expression is also described in pregnancy-related disorders. Although the data regarding galectins' clinical relevance are still at an early stage, evidence suggests that some galectin family members are promising candidates for better understanding pregnancy-related pathologies, as well as predicting biomarkers. In this review, we aim to summarize current knowledge of galectins in early pregnancy as well as in pregnancy-related pathologies.
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Affiliation(s)
| | | | | | | | | | | | | | - Žanka Bojić-Trbojević
- Institute for Application of Nuclear Energy Department for Biology of Reproduction, University of Belgrade, Banatska 31b, 11080 Belgrade, Serbia; (M.J.K.); (A.V.); (M.N.-A.); (A.P.); (D.Ć.); (J.L.); (D.D.)
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Sewgobind NV, Albers S, Pieters RJ. Functions and Inhibition of Galectin-7, an Emerging Target in Cellular Pathophysiology. Biomolecules 2021; 11:1720. [PMID: 34827718 PMCID: PMC8615947 DOI: 10.3390/biom11111720] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 12/16/2022] Open
Abstract
Galectin-7 is a soluble unglycosylated lectin that is able to bind specifically to β-galactosides. It has been described to be involved in apoptosis, proliferation and differentiation, but also in cell adhesion and migration. Several disorders and diseases are discussed by covering the aforementioned biological processes. Structural features of galectin-7 are discussed as well as targeting the protein intracellularly or extracellularly. The exact molecular mechanisms that lie behind many biological processes involving galectin-7 are not known. It is therefore useful to come up with chemical probes or tools in order to obtain knowledge of the physiological processes. The objective of this review is to summarize the roles and functions of galectin-7 in the human body, providing reasons why it is necessary to design inhibitors for galectin-7, to give the reader structural insights and describe its current inhibitors.
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Affiliation(s)
| | | | - Roland J. Pieters
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80082, NL-3508 TB Utrecht, The Netherlands; (N.V.S.); (S.A.)
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7
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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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Placental Galectin-2 Expression in Gestational Diabetes: A Systematic, Histological Analysis. Int J Mol Sci 2020; 21:ijms21072404. [PMID: 32244351 PMCID: PMC7177347 DOI: 10.3390/ijms21072404] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 12/12/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is the most common pregnancy-associated metabolic disorder that negatively impacts on the health of both mothers and their offspring in the long-term. The molecular mechanisms involved are not fully understood. As in other states of insulin resistance, a disproportionate immune response in GDM leads to a state of chronic low-grade inflammation. Galectin-2 exerts regulatory effects on different immune cells. This study investigated galectin-2 expression in the placenta of 40 GDM patients and 40 controls, in a sex-specific manner. Immunohistochemistry was used for semi-quantitative analysis of expression strength. The phenotypes of galectin-2 expressing cells were characterized through double immunofluorescence. We found a significant up-regulation of galectin-2 in the fetal syncytiotrophoblast, as well as in the maternal decidua of GDM placentas. Double staining showed a strong galectin-2 expression in extra villous trophoblast cells and fetal endothelial cells in GDM. These findings present the first systematic investigation of galectin-2 in GDM. The findings contribute to the emerging understanding of the role of immunomodulation and inflammation in GDM and of galectin-2 itself. This might also have implications for the long-term cardiovascular health of the offspring.
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The role of Galectin-1 in HIV associated preeclampsia. Eur J Obstet Gynecol Reprod Biol 2020; 246:138-144. [PMID: 32018196 DOI: 10.1016/j.ejogrb.2020.01.024] [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: 10/23/2019] [Revised: 01/16/2020] [Accepted: 01/20/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE In this study, the role of Gal1, a regulatory protein involved in receptor binding and gene transcription within trophoblast cells, in the pathophysiology of HIV associated preeclampsia was determined by immunolocalizing its expression in the placenta of a South African cohort. STUDY DESIGN this is an analytical study carried out at the Optics and Imaging Center, Neslon R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa. A hundred and twenty HIV negative or positive, Black African primigrad or multigravid women with pre-eclamptic and normotensive pregnancies were involved in the study. Post-delivery, full thickness of centrally located placental tissue obtained was fixed for immunohistochemistry. The expression of Gal1 was immunolocalized using immunohistochemical assay kit and further quantified with using AxioVision Image analysis software package. Student t-test was used to compare the levels of the analytes while One-way ANOVA was used for comparison across the groups. RESULTS Gal1 immunoreactivity was observed within the Hofbauer cells, cytotrophoblast, syncytial knots and in the endothelial cells lining blood vessels in both exchange and conducting villi of both normotensive and preeclamptic pregnancies regardless of HIV status. There was a down regulation in Gal1 immunoreactivity in both the exchange and conducting villi of preeclamptic compared to normotensive pregnancies. However, there was no significant effect of HIV infection on Gal1 immunostaining in both villi types. CONCLUSION The down regulation of Gal1 in preeclampsia may be due to the inhibition of the MAPK pathway. Since Gal1 influences differentiation and migration, the defective trophoblast invasion in preeclampsia may emanate from its decreased immunoexpression. This highlights the role of Gal1 in angiogenesis and placentation.
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Charkiewicz K, Goscik J, Raba G, Laudanski P. Syndecan 4, galectin 2, and death receptor 3 (DR3) as novel proteins in pathophysiology of preeclampsia. J Matern Fetal Neonatal Med 2019; 34:2965-2970. [PMID: 31608721 DOI: 10.1080/14767058.2019.1676410] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Preeclampsia has the highest rate of obstetric morbidity and mortality. METHODS We recruited 21 women with preeclampsia and 27 women with uncomplicated pregnancies. We used a quantitative protein macroarray that allowed for analysis of 40 proteins. RESULTS We found a statistically significant increase in the concentration of DR3, LIF and a significant decrease of VEGF, PlGF, syndecan-4 and galectin-2, in the plasma of women with preeclampsia. CONCLUSIONS There are no previous studies assessing syndecan 4, galectin 2, and DR3 concentrations in women with preeclampsia; Our results indicate these proteins are new factors that play important roles in the immunological pathomechanism of preeclampsia.
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Affiliation(s)
- Karol Charkiewicz
- Department of Perinatology and Obstetrics, Medical University of Bialystok, Białystok, Poland
| | - Joanna Goscik
- Faculty of Computer Science, Białystok University of Technology, Białystok, Poland
| | - Grzegorz Raba
- Institute of Obstetric and Emergency Medicine, University of Rzeszow, Żurawica, Poland
| | - Piotr Laudanski
- Department of Perinatology and Obstetrics, Medical University of Bialystok, Białystok, Poland.,Department of Obstetrics and Gynecology, Medical University of Warsaw, Warsaw, Poland
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Toudic C, Vargas A, Xiao Y, St-Pierre G, Bannert N, Lafond J, Rassart É, Sato S, Barbeau B. Galectin-1 interacts with the human endogenous retroviral envelope protein syncytin-2 and potentiates trophoblast fusion in humans. FASEB J 2019; 33:12873-12887. [PMID: 31499012 DOI: 10.1096/fj.201900107r] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Syncytin (Syn)-2 is an important fusogenic protein that contributes to the formation of the placental syncytiotrophoblast. Galectin (Gal)-1, a soluble lectin, is also involved in trophoblast cell fusion and modulates the interaction of certain retroviral envelopes with their cellular receptor. This study aimed to investigate the association between Syn-2 and Gal-1 during human trophoblast cell fusion. This association was evaluated in vitro on primary villous cytotrophoblasts (vCTBs) and cell lines using recombinant Gal-1 and Syn-2-pseudotyped viruses. Using lactose, a Gal antagonist, and Gal-1-specific small interfering RNA (siRNA) transfections, we confirmed the implication of Gal-1 in vCTBs and BeWo cell fusion, although RT-PCR and ELISA analyses suggested that Gal-1 alone did not induce syncytialization. Infection assays showed a specific and significant effect of Gal-1 on the infectivity of Syn-2-pseudotyped viruses that depended on the expression of major facilitator superfamily domain-containing 2A (MFSD2a). Moreover, Gal-3, another placental Gal, did not modulate the infectivity of Syn-2-positive viruses, strengthening the specific association between Gal-1 and Syn-2. Interestingly, Gal-1 significantly reduced the infectivity of Syn-1-pseudotyped viruses, suggesting the opposite effects of Gal-1 on Syn-1 and -2. Finally, coimmunoprecipitation experiments showed a glycan-dependent interaction between Syn-2-bearing virions and Gal-1. We conclude that Gal-1 specifically interacts with Syn-2 and possibly regulates Syn-2/MFSD2a interaction during syncytialization of trophoblastic cells.-Toudic, C., Vargas, A., Xiao, Y., St-Pierre, G., Bannert, N., Lafond, J., Rassart, É., Sato, S., Barbeau, B. Galectin-1 interacts with the human endogenous retroviral envelope protein syncytin-2 and potentiates trophoblast fusion in humans.
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Affiliation(s)
- Caroline Toudic
- Département des Sciences Biologiques, Centre de Recherche BioMed, Université du Quebec à Montréal, Montreal, Quebec, Canada
| | - Amandine Vargas
- Département des Sciences Biologiques, Centre de Recherche BioMed, Université du Quebec à Montréal, Montreal, Quebec, Canada
| | - Yong Xiao
- Département des Sciences Biologiques, Centre de Recherche BioMed, Université du Quebec à Montréal, Montreal, Quebec, Canada
| | - Guillaume St-Pierre
- Glycobiology and Bioimaging Laboratory, Research Centre for Infectious Diseases, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
| | | | - Julie Lafond
- Département des Sciences Biologiques, Centre de Recherche BioMed, Université du Quebec à Montréal, Montreal, Quebec, Canada
| | - Éric Rassart
- Département des Sciences Biologiques, Centre de Recherche BioMed, Université du Quebec à Montréal, Montreal, Quebec, Canada
| | - Sachiko Sato
- Glycobiology and Bioimaging Laboratory, Research Centre for Infectious Diseases, Faculty of Medicine, Laval University, Quebec City, Quebec, Canada
| | - Benoit Barbeau
- Département des Sciences Biologiques, Centre de Recherche BioMed, Université du Quebec à Montréal, Montreal, Quebec, Canada
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Gadde R, Cd D, Sheela SR. Placental protein 13: An important biological protein in preeclampsia. J Circ Biomark 2018; 7:1849454418786159. [PMID: 30023011 PMCID: PMC6047241 DOI: 10.1177/1849454418786159] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Accepted: 05/28/2018] [Indexed: 12/26/2022] Open
Abstract
Placental protein 13 (PP13), a glycan binding protein predominantly expressed in syncytiotrophoblast, dimeric in nature, lacks N-terminal signal peptide, bypasses the endoplasmic reticulum, and secretes into maternal circulation as exosomes or microvesicles. PP13 has jelly roll fold conformation with conserved carbohydrate recognition domain which specifically binds to β-galactosides of the glycan receptors during placentation. PP13 binds to glycosylated receptors on human erythrocytes and brings about hemagglutination by the property of lectin activity; other functions are immunoregulation and vasodilation during placentation and vascularization. The gene LGALS13 located on 19q13.2 comprising four exons expresses a 32-kDa protein with 139 amino acid residues, PP13. Impaired expression due to mutation in the gene leads to a nonfunctional truncated PP13. The low serum levels predict high risk for the onset of preeclampsia or obstetric complications. Hence, PP13 turned to be an early marker for risk assessment of preeclampsia. The recombinant PP13 and monoclonal antibodies availability help for replenishing PP13 in conditions with low serum levels and for detection and prevention of preeclampsia, respectively.
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Affiliation(s)
- Ranjeeta Gadde
- Department of Biochemistry, Sri Devaraj Urs Medical College, Kolar, India
| | - Dayanand Cd
- Department of Biochemistry, Sri Devaraj Urs Medical College, Kolar, India
| | - S R Sheela
- Department of Obstetrics and Gynecology, Sri Devaraj Urs Medical College, Kolar, India
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Yoshinaga K. A historical review of blastocyst implantation research. Biol Reprod 2018; 99:175-195. [PMID: 30010858 PMCID: PMC6279068 DOI: 10.1093/biolre/ioy093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 04/17/2018] [Accepted: 04/23/2018] [Indexed: 02/07/2023] Open
Abstract
Research development on blastocyst implantation was reviewed in three sections: primate implantation, ungulate farm animal implantation, and the general process of blastocyst implantation in small rodents. Future research directions of this area are suggested.
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Affiliation(s)
- Koji Yoshinaga
- Fertility and Infertility Branch, Division of Extramural Research, NICHD, NIH,
Bethesda, Maryland, USA
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14
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Zhao B, Han X, Meng Q, Luo Q. Early second trimester maternal serum markers in the prediction of gestational diabetes mellitus. J Diabetes Investig 2018; 9:967-974. [PMID: 29288571 PMCID: PMC6031488 DOI: 10.1111/jdi.12798] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 11/02/2017] [Accepted: 12/19/2017] [Indexed: 12/15/2022] Open
Abstract
AIMS/INTRODUCTION To determine whether maternal serum markers in the early second trimester are useful for prediction of gestational diabetes mellitus (GDM). MATERIALS AND METHODS A total of 876 singleton pregnancies were recruited in the present study. Blood samples were collected during 16-20 gestational weeks. GDM women were diagnosed by an oral glucose tolerance test during 24-28 gestational weeks. A total of 56 women with GDM and 73 healthy pregnant women were selected. Maternal serum concentrations of placental protein 13 (PP13), pentraxin 3 (PTX3), soluble fms-like tyrosine kinase-1 (sFlt-1), myostatin and follistatin (FST) were detected at 16-20 weeks' gestation. All of these markers concentrations were expressed as multiples of the medians. The Mann-Whitney U-test was used for comparison of the multiples of the medians of different concentrations of these five serum markers between the GDM group and the control group. Receiver operating characteristic curve analysis was applied to assess the sensitivity and specificity of significant serum markers from a Mann-Whitney U-test comparison. RESULTS Compared with healthy pregnancies, the serum levels of PP13, PTX3, sFlt-1, myostatin and FST in the early second trimester were significantly increased in patients who had developed GDM late. In screening for GDM by PP13, PTX3, sFlt-1, myostatin and FST, the detection rates were 92.3, 94.9, 94.9, 92.5 and 92.3%, respectively at 80% specificity. PTX3 and sFlt-1 were the most sensitive markers. CONCLUSIONS Maternal serum markers including PP13, PTX3, sFlt-1, myostatin and FST increase in the early second trimester of women with GDM. These five markers, especially PTX3 and sFlt-1, could have the value of prediction for those patients who would develop GDM in the late second trimester.
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Affiliation(s)
- Baihui Zhao
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
| | - Xiujun Han
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
| | - Qing Meng
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
| | - Qiong Luo
- Department of ObstetricsWomen's HospitalSchool of MedicineZhejiang UniversityHangzhouChina
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15
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Cagli F, Uysal G, Oz L, Akkaya H, Aksoy H, Ulku Karakilic E, Acmaz G. Serum Galectin 7 is Not Useful to Predict Abortion in the First Trimester. Fetal Pediatr Pathol 2018; 37:141-146. [PMID: 29693486 DOI: 10.1080/15513815.2018.1453001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Galectins are animal lectins that bind to surface glycoproteins expressed at the fetal-maternal interface. The aim of this prospective case-control study was to investigate the possible relationship between levels of maternal serum galectin-7 and threatened abortion (TA) and to determine whether serum galectin-7 had any prognostic value. METHODS This prospective study was conducted between August 2014 and February 2015. Included in the study were 31 consecutive pregnant women who were hospitalized for TA between 6 and 14 weeks of gestation and 33 healthy gestational age matched pregnant women without any symptoms of miscarriage. Serum galectin-7 levels were measured via ELISA. RESULTS The mean serum galectin-7 levels of the two groups were not significantly different (31 TA patients: 2.84 ± 0.43 pg/mL, 33 controls: 2.785 ± 0.32 pg/mL, p = 0.543). Six pregnancies in the TA group resulted in abortion (19.4%). CONCLUSION Serum galectin-7 was not useful for predicting prognosis in TA.
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Affiliation(s)
- Fulya Cagli
- a Department of Obstetrics and Gynecology , University of Health Science Training and Research Hospital , Kayseri , Turkey
| | - Gulsum Uysal
- b Adana City Research and Education Hospital , Adana , Turkey
| | - Leyla Oz
- c Department of Biochemistry , University of Health Science Training and Research Hospital , Kayseri , Turkey
| | - Hatice Akkaya
- d Department of Obstetrics and Gynecology , Zekai Tahir Burak Women's Health Training and Research Hospital , Ankara , Turkey
| | - Huseyin Aksoy
- e Department of Obstetrics and Gynecology , University of Health Science Training and Research Hospital , Kayseri , Turkey
| | - Eda Ulku Karakilic
- e Department of Obstetrics and Gynecology , University of Health Science Training and Research Hospital , Kayseri , Turkey
| | - Gokhan Acmaz
- e Department of Obstetrics and Gynecology , University of Health Science Training and Research Hospital , Kayseri , Turkey
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16
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Grosset AA, Labrie M, Vladoiu MC, Yousef EM, Gaboury L, St-Pierre Y. Galectin signatures contribute to the heterogeneity of breast cancer and provide new prognostic information and therapeutic targets. Oncotarget 2017; 7:18183-203. [PMID: 26933916 PMCID: PMC4951281 DOI: 10.18632/oncotarget.7784] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 01/29/2016] [Indexed: 12/02/2022] Open
Abstract
Because of their ability to induce local immunosuppression and to confer cancer cells with resistance to apoptosis, members of the galectin family are emerging as a new class of actionable targets in cancer. Unfortunately, we have yet to obtain a clear picture of the galectin signatures in cancer cells and the surrounding tumor microenvironment. The aim of this study was to provide the first detailed analysis of the galectin signature in molecular subtypes of breast cancer. Expression signatures of galectins were obtained at the mRNA and protein levels. A particular attention was paid to stromal versus epithelial staining and to subcellular compartmentalization. Analysis of the stromal signature showed that gal-1, -3, -9-positive stroma were preferentially found in triple-negative (TN) and HER2 subtypes. In cancer cells, gal-1, −3, -8, and -9 showed a dual expression pattern, being found either in the cytosol or in the cytosol and the nucleus. TN patients with gal-8-positive nuclei had significantly better disease-free survival (DFS), distant-disease-free survival (DDFS), and overall survival (OS). In contrast, high expression of nuclear gal-1 correlated with poor DDFS and OS. TNBC patients who were positive for both nuclear gal-1 and gal-8 had 5-year DFS and DDFS of 100%, suggesting a dominance of the gal-8 phenotype. Overall, the results indicate that specific galectin expression signatures contribute to the phenotypic heterogeneity of aggressive subtypes of breast cancer. Our data also suggest that galectins have clinical utility as indicators of disease progression and therapeutic targets in aggressive molecular subtypes of breast cancer.
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Affiliation(s)
- Andrée-Anne Grosset
- INRS-Institut Armand-Frappier, Laval, Quebec H7V 1B7, Canada.,IRIC
- Université de Montréal, Montreal, Quebec H3T 1J4, Canada
| | - Marilyne Labrie
- INRS-Institut Armand-Frappier, Laval, Quebec H7V 1B7, Canada
| | | | - Einas M Yousef
- IRIC
- Université de Montréal, Montreal, Quebec H3T 1J4, Canada
| | - Louis Gaboury
- IRIC
- Université de Montréal, Montreal, Quebec H3T 1J4, Canada
| | - Yves St-Pierre
- INRS-Institut Armand-Frappier, Laval, Quebec H7V 1B7, Canada
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17
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Ilekis JV, Tsilou E, Fisher S, Abrahams VM, Soares MJ, Cross JC, Zamudio S, Illsley NP, Myatt L, Colvis C, Costantine MM, Haas DM, Sadovsky Y, Weiner C, Rytting E, Bidwell G. Placental origins of adverse pregnancy outcomes: potential molecular targets: an Executive Workshop Summary of the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Am J Obstet Gynecol 2016; 215:S1-S46. [PMID: 26972897 DOI: 10.1016/j.ajog.2016.03.001] [Citation(s) in RCA: 179] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 02/11/2016] [Accepted: 03/01/2016] [Indexed: 12/26/2022]
Abstract
Although much progress is being made in understanding the molecular pathways in the placenta that are involved in the pathophysiology of pregnancy-related disorders, a significant gap exists in the utilization of this information for the development of new drug therapies to improve pregnancy outcome. On March 5-6, 2015, the Eunice Kennedy Shriver National Institute of Child Health and Human Development of the National Institutes of Health sponsored a 2-day workshop titled Placental Origins of Adverse Pregnancy Outcomes: Potential Molecular Targets to begin to address this gap. Particular emphasis was given to the identification of important molecular pathways that could serve as drug targets and the advantages and disadvantages of targeting these particular pathways. This article is a summary of the proceedings of that workshop. A broad number of topics were covered that ranged from basic placental biology to clinical trials. This included research in the basic biology of placentation, such as trophoblast migration and spiral artery remodeling, and trophoblast sensing and response to infectious and noninfectious agents. Research findings in these areas will be critical for the formulation of the development of future treatments and the development of therapies for the prevention of a number of pregnancy disorders of placental origin that include preeclampsia, fetal growth restriction, and uterine inflammation. Research was also presented that summarized ongoing clinical efforts in the United States and in Europe that has tested novel interventions for preeclampsia and fetal growth restriction, including agents such as oral arginine supplementation, sildenafil, pravastatin, gene therapy with virally delivered vascular endothelial growth factor, and oxygen supplementation therapy. Strategies were also proposed to improve fetal growth by the enhancement of nutrient transport to the fetus by modulation of their placental transporters and the targeting of placental mitochondrial dysfunction and oxidative stress to improve placental health. The roles of microRNAs and placental-derived exosomes, as well as messenger RNAs, were also discussed in the context of their use for diagnostics and as drug targets. The workshop discussed the aspect of safety and pharmacokinetic profiles of potential existing and new therapeutics that will need to be determined, especially in the context of the unique pharmacokinetic properties of pregnancy and the hurdles and pitfalls of the translation of research findings into practice. The workshop also discussed novel methods of drug delivery and targeting during pregnancy with the use of macromolecular carriers, such as nanoparticles and biopolymers, to minimize placental drug transfer and hence fetal drug exposure. In closing, a major theme that developed from the workshop was that the scientific community must change their thinking of the pregnant woman and her fetus as a vulnerable patient population for which drug development should be avoided, but rather be thought of as a deprived population in need of more effective therapeutic interventions.
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Affiliation(s)
- John V Ilekis
- Pregnancy and Perinatology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Department of Health and Human Services, Bethesda, MD.
| | - Ekaterini Tsilou
- Obstetric and Pediatric Pharmacology and Therapeutics Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health, Department of Health and Human Services, Bethesda, MD.
| | - Susan Fisher
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, San Francisco, CA
| | - Vikki M Abrahams
- Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine; New Haven, CT
| | - Michael J Soares
- Institute of Reproductive Health and Regenerative Medicine and Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS
| | - James C Cross
- Comparative Biology and Experimental Medicine, University of Calgary Health Sciences Centre, Calgary, Alberta, Canada
| | - Stacy Zamudio
- Department of Obstetrics and Gynecology, Hackensack University Medical Center, Hackensack, NJ
| | - Nicholas P Illsley
- Department of Obstetrics and Gynecology, Hackensack University Medical Center, Hackensack, NJ
| | - Leslie Myatt
- Center for Pregnancy and Newborn Research, University of Texas Health Science Center, San Antonio, TX
| | - Christine Colvis
- Therapeutics Discovery Program, National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, MD
| | - Maged M Costantine
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX
| | - David M Haas
- Department of Obstetrics and Gynecology Indiana University, Indianapolis, IN
| | | | - Carl Weiner
- University of Kansas Medical Center, Kansas City, KS
| | - Erik Rytting
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX
| | - Gene Bidwell
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS
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18
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Sukhikh GT, Ziganshina MM, Nizyaeva NV, Kulikova GV, Volkova JS, Yarotskaya EL, Kan NE, Shchyogolev AI, Tyutyunnik VL. Differences of glycocalyx composition in the structural elements of placenta in preeclampsia. Placenta 2016; 43:69-76. [PMID: 27324102 DOI: 10.1016/j.placenta.2016.05.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 04/27/2016] [Accepted: 05/04/2016] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Glycans expressed in the fetal-maternal interface were shown to exert immunomodulating effects and to mediate interactions between the cells. The aim of this study was to investigate alterations in the structure of carbohydrate chains of glycocalyx in placental tissue in pregnancies complicated with preeclampsia (PE). METHODS A histochemical analysis of placental tissues was performed with a panel of biotinylated lectins. We analyzed placental tissues in women who had severe or moderate PE and compared them to placentas from women with normal pregnancies. RESULTS There was decreased content of terminal residues of α(2,6)-linked sialic acid (as stained by SNA lectin) in the carbohydrate chains of glycocalyx of the endothelium of placental terminal villi in patients with moderate preeclampsia. The composition of the glycocalyx of syncytiotrophoblast in patients of this group did not differ from the control group. Amount of the glycans with terminal β-Gal- (ECL) and α-mannosyl residues (ConA) in the syncytiotrophoblast and capillary endothelium of the placenta was significantly higher in the group with severe PE compared to the control group. The increased content of sialoglycans with α(2,6)-linked sialic acids residues were discovered in the syncytium, and the decreased content of α(2,3)-linked sialic acids residues - in the endothelium of terminal villi in preeclampsia. DISCUSSION The most prominent alteration of the glycocalyx composition was found in the placentas of women with severe preeclampsia. It is likely that the modified glycome of syncytiotrophoblast and capillary endothelium may play an important role in pathogenesis of preeclampsia.
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Affiliation(s)
- G T Sukhikh
- Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
| | - M M Ziganshina
- Laboratory of Clinical Immunology, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation.
| | - N V Nizyaeva
- Department of Perinatal Pathology, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
| | - G V Kulikova
- Department of Perinatal Pathology, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
| | - J S Volkova
- Department of Perinatal Pathology, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
| | - E L Yarotskaya
- Department of International Cooperation, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
| | - N E Kan
- Observational Department, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
| | - A I Shchyogolev
- Department of Perinatal Pathology, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
| | - V L Tyutyunnik
- Obstetrical Physiologic Department, Federal State Budget Institution «Research Center for Obstetrics, Gynecology and Perinatology» of Ministry of Healthcare of the Russian Federation, Russian Federation
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19
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Prototype and Chimera-Type Galectins in Placentas with Spontaneous and Recurrent Miscarriages. Int J Mol Sci 2016; 17:ijms17050644. [PMID: 27136536 PMCID: PMC4881470 DOI: 10.3390/ijms17050644] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/14/2016] [Accepted: 04/22/2016] [Indexed: 11/17/2022] Open
Abstract
Galectins are galactose binding proteins and, in addition, factors for a wide range of pathologies in pregnancy. We have analyzed the expression of prototype (gal-1, -2, -7, -10) and chimera-type (gal-3) galectins in the placenta in cases of spontaneous abortions (SPA) and recurrent abortions (RA) in the first trimester. Fifteen placental samples from healthy pregnancies were used as a control group. Nine placentas were examined for spontaneous abortions, and 12 placentas for recurrent abortions. For differentiation and evaluation of different cell types of galectin-expression in the decidua, immunofluorescence was used. For all investigated prototype galectins (gal-1, -2, -7, -10) in SPA and RA placenta trophoblast cells the expression is significantly decreased. In the decidua/extravillous trophoblast only gal-2 expression was significantly lowered, which could be connected to its role in angiogenesis. In trophoblasts in first-trimester placentas and in cases of SPA and RA, prototype galectins are altered in the same way. We suspect prototype galectins have a similar function in placental tissue because of their common biochemical structure. Expression of galectin 3 as a chimera type galectin was not found to be significantly altered in abortive placentas.
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20
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Placental Expression Patterns of Galectin-1, Galectin-2, Galectin-3 and Galectin-13 in Cases of Intrauterine Growth Restriction (IUGR). Int J Mol Sci 2016; 17:523. [PMID: 27070577 PMCID: PMC4848979 DOI: 10.3390/ijms17040523] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/18/2016] [Accepted: 03/22/2016] [Indexed: 12/19/2022] Open
Abstract
Galectins (gal) are members of the mammalian β-galactoside-binding proteins and recognize Galβ1-4GlcNAc and Galβ1-4GalNac (Thomsen-Friedenreich antigen (TF)) sequences of several cell surface oligosaccharides. In this study, gal-1, -2, -3 and -13 were investigated systematically in the trophoblast and decidua compartment of intrauterine growth restriction (IUGR) placentas and normal third trimester control placentas and stratified by fetal gender and gestational age. Within this study, 29 third trimester placentas after delivery were analyzed. Fetal gender was equally divided within both groups, and immunohistochemical staining was analyzed according to fetal gender and gestational age. Double immune-fluorescence with trophoblast-specific markers was used to identify galectin-expressing cells at the feto-maternal interface in the decidua. Gal-3 was significantly downregulated only in the extravillous trophoblast of IUGR placentas. In contrast, expressions of gal-2 and gal-13 were downregulated in both villous and extravillous trophoblast cells of IUGR placentas. In addition, gal-2 and gal-13 showed a highly correlated expression scheme in the placenta. There are significant gender-specific expression patterns for single prototype galectins with downregulation of gal-2 and gal-13 of male gender placentas in cases of IUGR. Gal-3 as the chimera type galectin shows only little gender-specific differences in expression, which disappear in IUGR cases.
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21
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Conrad ML, Freitag N, Diessler ME, Hernandez R, Barrientos G, Rose M, Casas LA, Barbeito CG, Blois SM. Differential Spatiotemporal Patterns of Galectin Expression are a Hallmark of Endotheliochorial Placentation. Am J Reprod Immunol 2015; 75:317-25. [PMID: 26589652 DOI: 10.1111/aji.12452] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 10/20/2015] [Indexed: 02/03/2023] Open
Abstract
PROBLEM Galectins influence the progress of pregnancy by regulating key processes associated with embryo-maternal cross talk, including angiogenesis and placentation. Galectin family members exert multiple roles in the context of hemochorial and epitheliochorial placentation; however, the galectin prolife in endotheliochorial placenta remains to be investigated. METHOD OF STUDY Here, we used immunohistochemistry to analyze galectin (gal)-1, gal-3 and gal-9 expression during early and late endotheliochorial placentation in two different species (dogs and cats). RESULTS We found that during early feline gestation, all three galectin members were more strongly expressed on trophoblast and maternal vessels compared to the decidua. This was accompanied by an overall decrease of gal-1, gal-3 and gal-9 expressions in late feline gestation. In canine early pregnancy, we observed that gal-1 and gal-9 were expressed strongly in cytotrophoblast (CTB) cells compared to gal-3, and no galectin expression was observed in syncytiotrophoblast (STB) cells. Progression of canine gestation was accompanied by increased gal-1 and gal-3 expressions on STB cells, whereas gal-9 expression remained similar in CTB and STB. CONCLUSION These data suggest that both the maternal and fetal compartments are characterized by a spatiotemporal regulation of galectin expression during endotheliochorial placentation. This strongly suggests the involvement of the galectin family in important developmental processes during gestation including immunemodulation, trophoblast invasion and angiogenesis. A conserved functional role for galectins during mammalian placental development emerges from these studies.
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Affiliation(s)
- Melanie L Conrad
- Division of General Internal and Psychosomatic Medicine, Reproductive Medicine Research Group, Charité Center for Internal Medicine and Dermatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Nancy Freitag
- Division of General Internal and Psychosomatic Medicine, Reproductive Medicine Research Group, Charité Center for Internal Medicine and Dermatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Mónica E Diessler
- Cátedra de Histología y Embriología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Rocío Hernandez
- Cátedra de Histología y Embriología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina
| | - Gabriela Barrientos
- Division of General Internal and Psychosomatic Medicine, Reproductive Medicine Research Group, Charité Center for Internal Medicine and Dermatology, Charité-Universitätsmedizin Berlin, Berlin, Germany.,CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Buenos Aires, Argentina
| | - Matthias Rose
- Division of General Internal and Psychosomatic Medicine, Reproductive Medicine Research Group, Charité Center for Internal Medicine and Dermatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | | | - Claudio G Barbeito
- Cátedra de Histología y Embriología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata, Buenos Aires, Argentina.,CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Buenos Aires, Argentina
| | - Sandra M Blois
- Division of General Internal and Psychosomatic Medicine, Reproductive Medicine Research Group, Charité Center for Internal Medicine and Dermatology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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22
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Kolundžić N, Ćujić D, Abu Rabi T, Bojić-Trbojević Ž, Kadoya T, Vićovac L. Galectin signature of the choriocarcinoma JAr cells: Galectin-1 as a modulator of invasiveness in vitro. Mol Reprod Dev 2015; 82:765-73. [DOI: 10.1002/mrd.22515] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 06/13/2015] [Indexed: 02/06/2023]
Affiliation(s)
- Nikola Kolundžić
- Laboratory for Biology of Reproduction; Institute INEP; University of Belgrade; Belgrade Serbia
| | - Danica Ćujić
- Laboratory for Biology of Reproduction; Institute INEP; University of Belgrade; Belgrade Serbia
| | - Tamara Abu Rabi
- Laboratory for Biology of Reproduction; Institute INEP; University of Belgrade; Belgrade Serbia
| | - Žanka Bojić-Trbojević
- Laboratory for Biology of Reproduction; Institute INEP; University of Belgrade; Belgrade Serbia
| | - Toshihiko Kadoya
- Department of Biotechnology; Maebashi Institute of Technology; Maebashi Japan
| | - Ljiljana Vićovac
- Laboratory for Biology of Reproduction; Institute INEP; University of Belgrade; Belgrade Serbia
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23
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Than NG, Romero R, Balogh A, Karpati E, Mastrolia SA, Staretz-Chacham O, Hahn S, Erez O, Papp Z, Kim CJ. Galectins: Double-edged Swords in the Cross-roads of Pregnancy Complications and Female Reproductive Tract Inflammation and Neoplasia. J Pathol Transl Med 2015; 49:181-208. [PMID: 26018511 PMCID: PMC4440931 DOI: 10.4132/jptm.2015.02.25] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 02/25/2015] [Indexed: 02/07/2023] Open
Abstract
Galectins are an evolutionarily ancient and widely expressed family of lectins that have unique glycan-binding characteristics. They are pleiotropic regulators of key biological processes, such as cell growth, proliferation, differentiation, apoptosis, signal transduction, and pre-mRNA splicing, as well as homo- and heterotypic cell-cell and cell-extracellular matrix interactions. Galectins are also pivotal in immune responses since they regulate host-pathogen interactions, innate and adaptive immune responses, acute and chronic inflammation, and immune tolerance. Some galectins are also central to the regulation of angiogenesis, cell migration and invasion. Expression and functional data provide convincing evidence that, due to these functions, galectins play key roles in shared and unique pathways of normal embryonic and placental development as well as oncodevelopmental processes in tumorigenesis. Therefore, galectins may sometimes act as double-edged swords since they have beneficial but also harmful effects for the organism. Recent advances facilitate the use of galectins as biomarkers in obstetrical syndromes and in various malignancies, and their therapeutic applications are also under investigation. This review provides a general overview of galectins and a focused review of this lectin subfamily in the context of inflammation, infection and tumors of the female reproductive tract as well as in normal pregnancies and those complicated by the great obstetrical syndromes.
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Affiliation(s)
- Nandor Gabor Than
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences Budapest, Budapest, Hungary
- Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hangary
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Roberto Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Detroit, MI, USA
| | - Andrea Balogh
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Detroit, MI, USA
- Department of Immunology, Eotvos Lorand University, Budapest, Hungary
| | - Eva Karpati
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences Budapest, Budapest, Hungary
- Department of Immunology, Eotvos Lorand University, Budapest, Hungary
| | - Salvatore Andrea Mastrolia
- Department of Obstetrics and Gynecology, Ben-Gurion University, Beer-Sheva, Israel
- Department of Obstetrics and Gynecology, University of Bari Aldo Moro, Bari, Italy
| | | | - Sinuhe Hahn
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Offer Erez
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Detroit, MI, USA
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Obstetrics and Gynecology, Ben-Gurion University, Beer-Sheva, Israel
| | - Zoltan Papp
- Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hangary
| | - Chong Jai Kim
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Detroit, MI, USA
- Department of Pathology, Wayne State University, Detroit, MI, USA
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Galectin 2 (gal-2) expression is downregulated on protein and mRNA level in placentas of preeclamptic (PE) patients. Placenta 2015; 36:438-45. [DOI: 10.1016/j.placenta.2015.01.198] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 01/27/2015] [Accepted: 01/28/2015] [Indexed: 12/15/2022]
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Transmembrane Mucin Expression and Function in Embryo Implantation and Placentation. ADVANCES IN ANATOMY, EMBRYOLOGY, AND CELL BIOLOGY 2015; 216:51-68. [PMID: 26450494 DOI: 10.1007/978-3-319-15856-3_4] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Transmembrane mucins (TMs) are extremely large, complex glycoproteins that line the apical surfaces of simple epithelia including those of the female reproductive tract. TMs provide a physical barrier consistent with their role as part of the innate immune system. This barrier function must be overcome in the context of embryo implantation to permit blastocyst attachment. Three major TMs have been identified in uterine epithelia of multiple species: MUC1, MUC4, and MUC16. MUC1 has been found in all species studied to date, whereas expression of MUC4 and MUC16 have been less well studied and may be species specific. The strategies for removing mucins to permit embryo attachment also vary in a species-specific way and include both hormonal suppression of TM gene expression and membrane clearance via cell surface proteases. Studies emerging from the cancer literature indicate that TMs can modulate a surprisingly wide variety of signal transduction processes. Furthermore, various cell surface proteins have been identified that bind either the oligosaccharide or protein motifs of TMs suggesting that these molecules may support cell attachment in some contexts, including trophoblast interactions with cells of the immune system. The intimate association of TMs at sites of embryo-maternal interaction and the varied functions these complex molecules can play make them key players in embryo implantation and placentation processes.
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Unverdorben L, Hüttenbrenner R, Knabl J, Jeschke U, Hutter S. Galectin-13/PP-13 expression in term placentas of gestational diabetes mellitus pregnancies. Placenta 2014; 36:191-8. [PMID: 25499680 DOI: 10.1016/j.placenta.2014.11.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/04/2014] [Accepted: 11/25/2014] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Gestational diabetes mellitus (GDM) is an increasing harm in pregnancy. Inflammatory processes in the placenta seem to have an influence on pathogenesis besides known factors like maternal BMI. Galectin-13 (gal-13) is an immunoregulatory protein, which is suspected to play a role in development of GDM in the placenta. METHODS A total of 40 placentas were obtained from women treated for gestational diabetes mellitus. Placental tissue for control group was obtained from 40 women with normal pregnancy. We investigated the protein expression of gal-13 in term placentas with immunohistochemistry and immunofluorescence. Immunohistochemical staining was analyzed with the semi-quantified IRS score. Gal-13 serum levels were performed with ELISA on a total of 20 probes from women with GDM and healthy control pregnancies in the third trimester. RESULTS Gal-13 was found in syncytiotrophoblast, in nuclei of syncytiotrophoblast and trophoblast cells as well in extravillous trophoblast cells of normal placentas. In GDM placentas, gal-13 expression was significantly decreased in all of these examined cell types (syncytiotrophoblast p = 0.003, nuclei of syncytiotrophoblast p = 0.007; extravillous trophoblast cells p = 0.001). The ELISA showed a significant lower gal-13 serum level in blood from pregnant women with GDM in comparison to healthy controls. DISCUSSION As gal-13 with its anti-inflammatory functions plays a role in regulation of maternal immune system, a lack of gal-13 may contribute to an imbalance in inflammation processes in the placenta during pregnancy and therefore influences development of GDM.
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Affiliation(s)
- L Unverdorben
- Department of Gynecology and Obstetrics, Ludwig Maximilians University of Munich, Maistraße 11, 80337 Munich, Germany
| | - R Hüttenbrenner
- Department of Gynecology and Obstetrics, Ludwig Maximilians University of Munich, Maistraße 11, 80337 Munich, Germany
| | - J Knabl
- Department of Gynecology and Obstetrics, Klinik Hallerwiese, Diakonie Neuendettelsau, St.-Johannis-Mühlgasse 19, 90419 Nuremberg, Germany
| | - U Jeschke
- Department of Gynecology and Obstetrics, Ludwig Maximilians University of Munich, Maistraße 11, 80337 Munich, Germany.
| | - S Hutter
- Department of Gynecology and Obstetrics, Ludwig Maximilians University of Munich, Maistraße 11, 80337 Munich, Germany
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Than NG, Romero R, Xu Y, Erez O, Xu Z, Bhatti G, Leavitt R, Chung TH, El-Azzamy H, LaJeunesse C, Wang B, Balogh A, Szalai G, Land S, Dong Z, Hassan SS, Chaiworapongsa T, Krispin M, Kim CJ, Tarca AL, Papp Z, Bohn H. Evolutionary origins of the placental expression of chromosome 19 cluster galectins and their complex dysregulation in preeclampsia. Placenta 2014; 35:855-65. [PMID: 25266889 PMCID: PMC4203431 DOI: 10.1016/j.placenta.2014.07.015] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/04/2014] [Accepted: 07/28/2014] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The dysregulation of maternal-fetal immune tolerance is one of the proposed mechanisms leading to preeclampsia. Galectins are key regulator proteins of the immune response in vertebrates and maternal-fetal immune tolerance in eutherian mammals. Previously we found that three genes in a Chr19 cluster encoding for human placental galectin-13 (PP13), galectin-14 and galectin-16 emerged during primate evolution and may confer immune tolerance to the semi-allogeneic fetus. MATERIALS AND METHODS This study involved various methodologies for gene and protein expression profiling, genomic DNA methylation analyses, functional assays on differentiating trophoblasts including gene silencing, luciferase reporter and methylation assays. These methods were applied on placental specimens, umbilical cord blood cells, primary trophoblasts and BeWo cells. Genomic DNA sequences were analyzed for transposable elements, transcription factor binding sites and evolutionary conservation. RESULTS AND DISCUSSION The villous trophoblastic expression of Chr19 cluster galectin genes is developmentally regulated by DNA methylation and induced by key transcription factors of villous placental development during trophoblast fusion and differentiation. This latter mechanism arose via the co-option of binding sites for these transcription factors through promoter evolution and the insertion of an anthropoid-specific L1PREC2 transposable element into the 5' untranslated region of an ancestral gene followed by gene duplication events. Among placental Chr19 cluster galectin genes, the expression of LGALS13 and LGALS14 is down-regulated in preterm severe preeclampsia associated with SGA. We reveal that this phenomenon is partly originated from the dysregulated expression of key transcription factors controlling trophoblastic functions and galectin gene expression. In addition, the differential DNA methylation of these genes was also observed in preterm preeclampsia irrespective of SGA. CONCLUSIONS These findings reveal the evolutionary origins of the placental expression of Chr19 cluster galectins. The complex dysregulation of these genes in preeclampsia may alter immune tolerance mechanisms at the maternal-fetal interface.
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Affiliation(s)
- N G Than
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA; Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hungary; Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary.
| | - R Romero
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA.
| | - Y Xu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - O Erez
- Department of Obstetrics and Gynecology, Ben-Gurion University, Beer-Sheva, Israel
| | - Z Xu
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - G Bhatti
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - R Leavitt
- Zymo Research Corporation, Irvine, CA, USA
| | - T H Chung
- Zymo Research Corporation, Irvine, CA, USA
| | - H El-Azzamy
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - C LaJeunesse
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - B Wang
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - A Balogh
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA; Department of Immunology, Eotvos Lorand University, Budapest, Hungary
| | - G Szalai
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - S Land
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Z Dong
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA
| | - S S Hassan
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - T Chaiworapongsa
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA; Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, MI, USA
| | - M Krispin
- Zymo Research Corporation, Irvine, CA, USA
| | - C J Kim
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA; Department of Pathology, Wayne State University School of Medicine, Detroit, MI, USA
| | - A L Tarca
- Perinatology Research Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit, MI, USA; Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, USA
| | - Z Papp
- Maternity Private Department, Kutvolgyi Clinical Block, Semmelweis University, Budapest, Hungary
| | - H Bohn
- Behringwerke AG, Marburg/Lahn, Germany
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Evans J, Yap J, Gamage T, Salamonsen L, Dimitriadis E, Menkhorst E. Galectin-7 is important for normal uterine repair following menstruation. Mol Hum Reprod 2014; 20:787-98. [PMID: 24782449 DOI: 10.1093/molehr/gau032] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Menstruation involves the shedding of the functional layer of the endometrium in the absence of pregnancy. At sites where tissue shedding is complete, re-epithelialization of the tissue is essential for repair and termination of bleeding. The complement of growth factors that mediate post-menstrual endometrial repair are yet to be completely elucidated. Galectins regulate many cell functions important for post-menstrual repair, such as cell adhesion and migration. Galectin-7 has a well characterized role in re-epithelialization and wound healing. We hypothesized that galectin-7 would be important in re-epithelialization during post-menstrual repair. We aimed to identify endometrial expression of galectin-7 in women undergoing normal endometrial repair and in women with amenorrhoea who do not experience endometrial breakdown and repair, and to determine whether galectin-7 enhances endometrial re-epithelialization in vitro. Galectin-7 immunolocalized to the endometrial luminal and glandular epithelium during the late secretory and menstrual phases, and to decidualized stroma in regions exhibiting tissue breakdown. Immunostaining intensity was significantly reduced in the endometrium of women with amenorrhoea compared with normally cycling woman. ELISA identified galectin-7 in menstrual fluid at significantly elevated levels compared with matched peripheral plasma. Exogenous galectin-7 (2.5 µg/ml) significantly enhanced endometrial epithelial wound repair in vitro; this was abrogated by inhibition of integrin binding. Galectin-7 elevated epithelial expression of extracellular matrix-related molecules likely involved in repair including β-catenin, contactin and TGF-β1. In conclusion, galectin-7 is produced by the premenstrual and menstrual endometrium, where it accumulates in menstrual fluid and likely acts as a paracrine factor to facilitate post-menstrual endometrial re-epithelialization.
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Affiliation(s)
- Jemma Evans
- Endometrial Remodelling Laboratory, MIMR-PHI Institute of Medical Research, Clayton, VIC 3168, Australia Department of Physiology, Monash University, Clayton, VIC 3800, Australia
| | - Joanne Yap
- Endometrial Remodelling Laboratory, MIMR-PHI Institute of Medical Research, Clayton, VIC 3168, Australia
| | - Thillini Gamage
- Embryo Implantation Laboratory, MIMR-PHI Institute of Medical Research, Clayton, VIC 3168, Australia
| | - Lois Salamonsen
- Endometrial Remodelling Laboratory, MIMR-PHI Institute of Medical Research, Clayton, VIC 3168, Australia Department of Obstetrics and Gynecology, Monash University, Clayton, VIC 3800, Australia
| | - Evdokia Dimitriadis
- Department of Physiology, Monash University, Clayton, VIC 3800, Australia Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC 3800, Australia
| | - Ellen Menkhorst
- Department of Physiology, Monash University, Clayton, VIC 3800, Australia
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Menkhorst E, Koga K, Van Sinderen M, Dimitriadis E. Galectin-7 serum levels are altered prior to the onset of pre-eclampsia. Placenta 2014; 35:281-5. [DOI: 10.1016/j.placenta.2014.01.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/20/2014] [Accepted: 01/23/2014] [Indexed: 12/17/2022]
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Record M. Intercellular communication by exosomes in placenta: a possible role in cell fusion? Placenta 2014; 35:297-302. [PMID: 24661568 DOI: 10.1016/j.placenta.2014.02.009] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 02/17/2014] [Accepted: 02/19/2014] [Indexed: 01/01/2023]
Abstract
Exosomes are nanovesicles released from viable cells and have attracted increasing interest due to their role in intercellular communication and biological functions. More recently exosomes have been shown to be released by trophoblasts and to carry molecules involved in placental physiology. This involves proteins such as fibronectin, syncytin, Wnt/βcatenin-related molecules, galectin-3, and HLA-G, but also bioactive lipids such as the immunosuppressive PGE2, the PPARγ ligand 15d-PGJ2, or microRNAs that appear as immunomodulators in pregnancy and are able to confer viral resistance. Exosome trafficking within the placental micro-environment potentially links these nanovesicles to the organization of the placental interface, fetal tolerance, viral protection, and possibly mother-fetus communication. Because of the presence of immunocompetent exosomes in breast-milk, they appear as an essential component in reproduction. Several aspects of the "exosome pathway" are described in the review, from general aspects related to their origin, their characteristics and their ability to vectorize material between cells, to more specific functions involved in placental physiology such as their putative role in triggering cell fusion required for syncytiotrophoblast formation.
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Affiliation(s)
- M Record
- INSERM-UMR 1037, Cancer Research Center of Toulouse (CRCT), Team« Sterol Metabolism and Therapeutic Innovation in Oncology », BP3028, CHU Purpan, Toulouse F-31300, France; Institut Claudius Regaud, 20-24 Rue du Pont Saint-Pierre, Toulouse Cedex 31052, France; Université Paul Sabatier, 118 Route de Narbonne, Toulouse, France.
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Menkhorst E, Gamage T, Cuman C, Kaitu'u-Lino T, Tong S, Dimitriadis E. Galectin-7 acts as an adhesion molecule during implantation and increased expression is associated with miscarriage. Placenta 2014; 35:195-201. [DOI: 10.1016/j.placenta.2014.01.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 01/10/2014] [Accepted: 01/14/2014] [Indexed: 11/25/2022]
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