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Tam PLF, Leung D. The Molecular Impacts of Retrotransposons in Development and Diseases. Int J Mol Sci 2023; 24:16418. [PMID: 38003607 PMCID: PMC10671454 DOI: 10.3390/ijms242216418] [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: 10/07/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Retrotransposons are invasive genetic elements that constitute substantial portions of mammalian genomes. They have the potential to influence nearby gene expression through their cis-regulatory sequences, reverse transcription machinery, and the ability to mold higher-order chromatin structures. Due to their multifaceted functions, it is crucial for host fitness to maintain strict regulation of these parasitic sequences to ensure proper growth and development. This review explores how subsets of retrotransposons have undergone evolutionary exaptation to enhance the complexity of mammalian genomes. It also highlights the significance of regulating these elements, drawing on recent studies conducted in human and murine systems.
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Affiliation(s)
- Phoebe Lut Fei Tam
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, China;
| | - Danny Leung
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, China;
- Center for Epigenomics Research, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, China
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2
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Gao L, Mathur V, Tam SKM, Zhou X, Cheung MF, Chan LY, Estrada-Gutiérrez G, Leung BW, Moungmaithong S, Wang CC, Poon LC, Leung D. Single-cell analysis reveals transcriptomic and epigenomic impacts on the maternal-fetal interface following SARS-CoV-2 infection. Nat Cell Biol 2023:10.1038/s41556-023-01169-x. [PMID: 37400500 PMCID: PMC10344786 DOI: 10.1038/s41556-023-01169-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 05/22/2023] [Indexed: 07/05/2023]
Abstract
During pregnancy the maternal-fetal interface plays vital roles in fetal development. Its disruption is frequently found in pregnancy complications. Recent studies show increased incidences of adverse pregnancy outcomes in patients with COVID-19; however, the mechanism remains unclear. Here we analysed the molecular impacts of SARS-CoV-2 infection on the maternal-fetal interface. Generating bulk and single-nucleus transcriptomic and epigenomic profiles from patients with COVID-19 and control samples, we discovered aberrant immune activation and angiogenesis patterns in distinct cells from patients. Surprisingly, retrotransposons were also dysregulated in specific cell types. Notably, reduced enhancer activities of LTR8B elements were functionally linked to the downregulation of pregnancy-specific glycoprotein genes in syncytiotrophoblasts. Our findings revealed that SARS-CoV-2 infection induced substantial changes to the epigenome and transcriptome at the maternal-fetal interface, which may be associated with pregnancy complications.
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Grants
- GRF16103721 Research Grants Council, University Grants Committee (RGC, UGC)
- GRF16103721 Research Grants Council, University Grants Committee (RGC, UGC)
- GRF16103721 Research Grants Council, University Grants Committee (RGC, UGC)
- CRF C5045-20EF Research Grants Council, University Grants Committee (RGC, UGC)
- CRF C5045-20EF Research Grants Council, University Grants Committee (RGC, UGC)
- CRF C5045-20EF Research Grants Council, University Grants Committee (RGC, UGC)
- CRF C5045-20EF Research Grants Council, University Grants Committee (RGC, UGC)
- CUHK 2020.053 Chinese University of Hong Kong (CUHK)
- CUHK 2020.053 Chinese University of Hong Kong (CUHK)
- CUHK 2020.053 Chinese University of Hong Kong (CUHK)
- CUHK 2020.053 Chinese University of Hong Kong (CUHK)
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Affiliation(s)
- Lin Gao
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Vrinda Mathur
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Sabrina Ka Man Tam
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Xuemeng Zhou
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Ming Fung Cheung
- Center for Epigenomics Research, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Lu Yan Chan
- Center for Epigenomics Research, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | | | - Bo Wah Leung
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Sakita Moungmaithong
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
- Li Ka Shing Institute of Health Sciences; School of Biomedical Sciences and The Chinese University of Hong Kong-Sichuan University Joint Laboratory in Reproductive Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Liona C Poon
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
| | - Danny Leung
- Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
- Center for Epigenomics Research, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China.
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3
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Frost JM, Amante SM, Okae H, Jones EM, Ashley B, Lewis RM, Cleal JK, Caley MP, Arima T, Maffucci T, Branco MR. Regulation of human trophoblast gene expression by endogenous retroviruses. Nat Struct Mol Biol 2023; 30:527-538. [PMID: 37012406 PMCID: PMC10113160 DOI: 10.1038/s41594-023-00960-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 03/02/2023] [Indexed: 04/05/2023]
Abstract
The placenta is a fast-evolving organ with large morphological and histological differences across eutherians, but the genetic changes driving placental evolution have not been fully elucidated. Transposable elements, through their capacity to quickly generate genetic variation and affect host gene regulation, may have helped to define species-specific trophoblast gene expression programs. Here we assess the contribution of transposable elements to human trophoblast gene expression as enhancers or promoters. Using epigenomic data from primary human trophoblast and trophoblast stem-cell lines, we identified multiple endogenous retrovirus families with regulatory potential that lie close to genes with preferential expression in trophoblast. These largely primate-specific elements are associated with inter-species gene expression differences and are bound by transcription factors with key roles in placental development. Using genetic editing, we demonstrate that several elements act as transcriptional enhancers of important placental genes, such as CSF1R and PSG5. We also identify an LTR10A element that regulates ENG expression, affecting secretion of soluble endoglin, with potential implications for preeclampsia. Our data show that transposons have made important contributions to human trophoblast gene regulation, and suggest that their activity may affect pregnancy outcomes.
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Affiliation(s)
- Jennifer M Frost
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Samuele M Amante
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Hiroaki Okae
- Department of Trophoblast Research, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto, Japan
| | - Eleri M Jones
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Brogan Ashley
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Rohan M Lewis
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Jane K Cleal
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Matthew P Caley
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Takahiro Arima
- Department of Informative Genetics, Environment and Genome Research Center, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tania Maffucci
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Miguel R Branco
- Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
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Longitudinal Proteomic Analysis of Plasma across Healthy Pregnancies Reveals Indicators of Gestational Age. Int J Mol Sci 2022; 23:ijms23137076. [PMID: 35806078 PMCID: PMC9266720 DOI: 10.3390/ijms23137076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/21/2022] [Accepted: 06/22/2022] [Indexed: 02/05/2023] Open
Abstract
Longitudinal changes in the blood proteome during gestation relate to fetal development and maternal homeostasis. Charting the maternal blood proteome in normal pregnancies is critical for establishing a baseline reference when assessing complications and disease. Using mass spectrometry-based shotgun proteomics, we surveyed the maternal plasma proteome across uncomplicated pregnancies. Results indicate a significant rise in proteins that govern placentation and are vital to the development and health of the fetus. Importantly, we uncovered proteome signatures that strongly correlated with gestational age. Fold increases and correlations between the plasma concentrations of ADAM12 (ρ = 0.973), PSG1 (ρ = 0.936), and/or CSH1/2 (ρ = 0.928) with gestational age were validated with ELISA. Proteomic and validation analyses demonstrate that the maternal plasma concentration of ADAM12, either independently or in combination with either PSG1 or CSH1/2, correlates with gestational age within ±8 days throughout pregnancy. These findings suggest that the gestational age in healthy pregnancies may be determined by referencing the concentration of select plasma proteins.
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Blois SM, Verlohren S, Wu G, Clark G, Dell A, Haslam SM, Barrientos G. Role of galectin-glycan circuits in reproduction: from healthy pregnancy to preterm birth (PTB). Semin Immunopathol 2020; 42:469-486. [PMID: 32601855 PMCID: PMC7508936 DOI: 10.1007/s00281-020-00801-4] [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: 03/24/2020] [Accepted: 05/20/2020] [Indexed: 02/08/2023]
Abstract
Growing evidence suggests that galectins, an evolutionarily conserved family of glycan-binding proteins, fulfill key roles in pregnancy including blastocyst implantation, maternal-fetal immune tolerance, placental development, and maternal vascular expansion, thereby establishing a healthy environment for the growing fetus. In this review, we comprehensively present the function of galectins in shaping cellular circuits that characterize a healthy pregnancy. We describe the current understanding of galectins in term and preterm labor and discuss how the galectin-glycan circuits contribute to key immunological pathways sustaining maternal tolerance and preventing microbial infections. A deeper understanding of the glycoimmune pathways regulating early events in preterm birth could offer the broader translational potential for the treatment of this devastating syndrome.
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Affiliation(s)
- Sandra M Blois
- Experimental and Clinical Research Center, A Cooperation Between the Max Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, AG GlycoImmunology, Berlin, Germany. .,Institute for Medical Immunology, Charité-Universitätsmedizin Berlin, Berlin, Germany. .,Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Stefan Verlohren
- Department of Obstetrics, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Gang Wu
- Department of Life Sciences, Imperial College London, London, UK
| | - Gary Clark
- Department of Obstetrics, Gynaecology and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Anne Dell
- Department of Life Sciences, Imperial College London, London, UK
| | - Stuart M Haslam
- Department of Life Sciences, Imperial College London, London, UK
| | - Gabriela Barrientos
- Laboratory of Experimental Medicine, Hospital Alemán, School of Medicine, University of Buenos Aires, CONICET, Buenos Aires, Argentina
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Expression of Pregnancy Specific β-1 Glycoprotein 1 in Cervical Cancer Cells. Arch Med Res 2020; 51:504-514. [PMID: 32546445 DOI: 10.1016/j.arcmed.2020.05.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/25/2020] [Accepted: 05/07/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND Cervical Cancer (CC) is a worldwide public health concern associated with genetic alterations, among these the gain of the 19q chromosome harboring the Pregnancy Specific Glycoproteins (PSG) gene family. These proteins play a critical role in pregnancy, with participation in immunotolerance, angiogenesis, and invasion processes, which are also observed in carcinogenesis. The aim of this study was to determine the molecular alterations of PSG1 and its relationship with CC. METHODS PSG1 Copy Number Variation (CNV) was evaluated in 31 CC and eight normal cervical tissues by qPCR. PSG1 expression was correlated with HPV detection and IL-10 and TGF-β expression in CC samples. Finally, PSG1 protein expression was evaluated by immunofluorescence in CC cell lines, by immunohistochemistry in a tissue microarray, and by immunoblotting in the sera of women with normal cervix, pre-invasive lesions, and CC. RESULTS PSG1 showed a gain of 25.6% in CNV and gene expression in CC. There was a lack of PSG1 expression in normal cervical epithelium and positive immunostaining in 57% of CC tissues, while all CC cell lines expressed PSG1. Finally, PSG1 was immunodetected in 90% of pre-invasive lesions and in all CC serum samples, but not in healthy women. PSG1 expression correlates with the expression of IL-10 and TGF-β in CC tissues, but not with the presence of HPV. CONCLUSION These data show evidence of the differential expression of PSG1 in CC that could explain its participation in tumor-biology and immunotolerance mechanisms. Further, its immunodetection could provide early detection of this cancer.
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Tiensuu H, Haapalainen AM, Karjalainen MK, Pasanen A, Huusko JM, Marttila R, Ojaniemi M, Muglia LJ, Hallman M, Rämet M. Risk of spontaneous preterm birth and fetal growth associates with fetal SLIT2. PLoS Genet 2019; 15:e1008107. [PMID: 31194736 PMCID: PMC6563950 DOI: 10.1371/journal.pgen.1008107] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/18/2019] [Indexed: 12/13/2022] Open
Abstract
Spontaneous preterm birth (SPTB) is the leading cause of neonatal death and morbidity worldwide. Both maternal and fetal genetic factors likely contribute to SPTB. We performed a genome-wide association study (GWAS) on a population of Finnish origin that included 247 infants with SPTB (gestational age [GA] < 36 weeks) and 419 term controls (GA 38-41 weeks). The strongest signal came within the gene encoding slit guidance ligand 2 (SLIT2; rs116461311, minor allele frequency 0.05, p = 1.6×10-6). Pathway analysis revealed the top-ranking pathway was axon guidance, which includes SLIT2. In 172 very preterm-born infants (GA <32 weeks), rs116461311 was clearly overrepresented (odds ratio 4.06, p = 1.55×10-7). SLIT2 variants were associated with SPTB in another European population that comprised 260 very preterm infants and 9,630 controls. To gain functional insight, we used immunohistochemistry to visualize SLIT2 and its receptor ROBO1 in placentas from spontaneous preterm and term births. Both SLIT2 and ROBO1 were located in villous and decidual trophoblasts of embryonic origin. Based on qRT-PCR, the mRNA levels of SLIT2 and ROBO1 were higher in the basal plate of SPTB placentas compared to those from term or elective preterm deliveries. In addition, in spontaneous term and preterm births, placental SLIT2 expression was correlated with variations in fetal growth. Knockdown of ROBO1 in trophoblast-derived HTR8/SVneo cells by siRNA indicated that it regulate expression of several pregnancy-specific beta-1-glycoprotein (PSG) genes and genes involved in inflammation. Our results show that the fetal SLIT2 variant and both SLIT2 and ROBO1 expression in placenta and trophoblast cells may be correlated with susceptibility to SPTB. SLIT2-ROBO1 signaling was linked with regulation of genes involved in inflammation, PSG genes, decidualization and fetal growth. We propose that this receptor-ligand couple is a component of the signaling network that promotes SPTB.
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Affiliation(s)
- Heli Tiensuu
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Antti M. Haapalainen
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Minna K. Karjalainen
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Anu Pasanen
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Johanna M. Huusko
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
- Division of Human Genetics, Center for Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, March of Dimes Prematurity Research Center Ohio Collaborative, Cincinnati, Ohio, United States of America
| | - Riitta Marttila
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Marja Ojaniemi
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Louis J. Muglia
- Division of Human Genetics, Center for Prevention of Preterm Birth, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, March of Dimes Prematurity Research Center Ohio Collaborative, Cincinnati, Ohio, United States of America
| | - Mikko Hallman
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Mika Rämet
- PEDEGO Research Unit, Medical Research Center Oulu, University of Oulu, and Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
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Baptista LC, Figueira CO, Souza BB, Fertrin KY, Antolini A, Costa FF, de Melo MB, Costa ML. Different morphological and gene expression profile in placentas of the same sickle cell anemia patient in pregnancies of opposite outcomes. Exp Biol Med (Maywood) 2019; 244:395-403. [PMID: 30818999 DOI: 10.1177/1535370219834305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
IMPACT STATEMENT Environmentally induced changes in placental morphological and molecular phenotypes may provide relevant insight towards pathophysiology of diseases. The rare opportunity to evaluate the same patient, with sickle cell anemia (SCA), in two different pregnancies, of opposite outcomes (one early onset severe preeclampsia (PE) and the other mostly non-complicated) can prove such concept. In addition, the comparison to other conditions of known placental and vascular/inflammatory involvement strengthens such findings. Our results suggest that the clinical association between SCA and PE can be supported by common pathophysiological mechanisms, but that pathways involving response to copper and triglyceride metabolism may be important drivers of the pathophysiology of PE. Future studies using in a larger number of samples should confirm these findings and explore pathways involved in the pathophysiology of PE and its relationship with SCA.
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Affiliation(s)
- Letícia C Baptista
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas - UNICAMP, Campinas, SP 13083-875, Brazil.,*Shared first and last authorship
| | - Camilla O Figueira
- 2 Department of Obstetrics and Gynecology, University of Campinas - UNICAMP, Campinas, SP 13083-880, Brazil.,*Shared first and last authorship
| | - Bruno B Souza
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas - UNICAMP, Campinas, SP 13083-875, Brazil
| | - Kleber Y Fertrin
- 3 Division of Hematology, University of Washington, Seattle, WA 98195-7230, USA
| | - Arthur Antolini
- 4 Department of Pathology, University of Campinas - UNICAMP, Campinas, SP 13083-887, Brazil
| | - Fernando F Costa
- 5 Hematology and Hemotherapy Center, University of Campinas - UNICAMP, Campinas, SP 13083-878
| | - Mônica B de Melo
- 1 Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas - UNICAMP, Campinas, SP 13083-875, Brazil.,*Shared first and last authorship
| | - Maria Laura Costa
- 2 Department of Obstetrics and Gynecology, University of Campinas - UNICAMP, Campinas, SP 13083-880, Brazil.,*Shared first and last authorship
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Majewska M, Lipka A, Paukszto L, Jastrzebski JP, Gowkielewicz M, Jozwik M, Majewski MK. Preliminary RNA-Seq Analysis of Long Non-Coding RNAs Expressed in Human Term Placenta. Int J Mol Sci 2018; 19:ijms19071894. [PMID: 29954144 PMCID: PMC6073670 DOI: 10.3390/ijms19071894] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 06/24/2018] [Indexed: 12/20/2022] Open
Abstract
Development of particular structures and proper functioning of the placenta are under the influence of sophisticated pathways, controlled by the expression of substantial genes that are additionally regulated by long non-coding RNAs (lncRNAs). To date, the expression profile of lncRNA in human term placenta has not been fully established. This study was conducted to characterize the lncRNA expression profile in human term placenta and to verify whether there are differences in the transcriptomic profile between the sex of the fetus and pregnancy multiplicity. RNA-Seq data were used to profile, quantify, and classify lncRNAs in human term placenta. The applied methodology enabled detection of the expression of 4463 isoforms from 2899 annotated lncRNA loci, plus 990 putative lncRNA transcripts from 607 intergenic regions. Those placentally expressed lncRNAs displayed features such as shorter transcript length, longer exon length, fewer exons, and lower expression levels compared to messenger RNAs (mRNAs). Among all placental transcripts, 175,268 were classified as mRNAs and 15,819 as lncRNAs, and 56,727 variants were discovered within unannotated regions. Five differentially expressed lncRNAs (HAND2-AS1, XIST, RP1-97J1.2, AC010084.1, TTTY15) were identified by a sex-bias comparison. Splicing events were detected within 37 genes and 4 lncRNA loci. Functional analysis of cis-related potential targets for lncRNAs identified 2021 enriched genes. It is presumed that the obtained data will expand the current knowledge of lncRNAs in placenta and human non-coding catalogs, making them more contemporary and specific.
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Affiliation(s)
- Marta Majewska
- Department of Human Physiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland.
| | - Aleksandra Lipka
- Department of Gynecology and Obstetrics, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-045 Olsztyn, Poland.
| | - Lukasz Paukszto
- Department of Plant Physiology, Genetics and Biotechnology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland.
| | - Jan Pawel Jastrzebski
- Department of Plant Physiology, Genetics and Biotechnology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland.
| | - Marek Gowkielewicz
- Department of Gynecology and Obstetrics, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-045 Olsztyn, Poland.
| | - Marcin Jozwik
- Department of Gynecology and Obstetrics, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-045 Olsztyn, Poland.
| | - Mariusz Krzysztof Majewski
- Department of Human Physiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland.
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10
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Aleksic D, Blaschke L, Mißbach S, Hänske J, Weiß W, Handler J, Zimmermann W, Cabrera-Sharp V, Read JE, de Mestre AM, O'Riordan R, Moore T, Kammerer R. Convergent evolution of pregnancy-specific glycoproteins in human and horse. Reproduction 2016; 152:171-84. [PMID: 27280409 DOI: 10.1530/rep-16-0236] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 06/07/2016] [Indexed: 01/13/2023]
Abstract
Pregnancy-specific glycoproteins (PSGs) are members of the carcinoembryonic antigen cell adhesion molecule (CEACAM) family that are secreted by trophoblast cells. PSGs may modulate immune, angiogenic and platelet responses during pregnancy. Until now, PSGs are only found in species that have a highly invasive (hemochorial) placentation including humans, mice and rats. Surprisingly, analyzing the CEACAM gene family of the horse, which has a non-invasive epitheliochorial placenta, with the exception of the transient endometrial cups, we identified equine CEACAM family members that seem to be related to PSGs of rodents and primates. We identified seven genes that encode secreted PSG-like CEACAMs Phylogenetic analyses indicate that they evolved independently from an equine CEACAM1-like ancestor rather than from a common PSG-like ancestor with rodents and primates. Significantly, expression of PSG-like genes (CEACAM44, CEACAM48, CEACAM49 and CEACAM55) was found in non-invasive as well as invasive trophoblast cells such as purified chorionic girdle cells and endometrial cup cells. Chorionic girdle cells are highly invasive trophoblast cells that invade the endometrium of the mare where they form endometrial cups and are in close contact with maternal immune cells. Therefore, the microenvironment of invasive equine trophoblast cells has striking similarities to the microenvironment of trophoblast cells in hemochorial placentas, suggesting that equine PSG-like CEACAMs and rodent and primate PSGs have undergone convergent evolution. This is supported by our finding that equine PSG-like CEACAM49 exhibits similar activity to certain rodent and human PSGs in a functional assay of platelet-fibrinogen binding. Our results have implications for understanding the evolution of PSGs and their functions in maternal-fetal interactions.
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Affiliation(s)
- Denis Aleksic
- Institute of ImmunologyFriedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Lisa Blaschke
- Institute of ImmunologyFriedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Sophie Mißbach
- Institute of ImmunologyFriedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Jana Hänske
- Institute of ImmunologyFriedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Wiebke Weiß
- Institute of ImmunologyFriedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Johannes Handler
- Equine Center Bad SaarowFreie Universität Berlin, Bad Saarow, Germany
| | - Wolfgang Zimmermann
- Tumor Immunology LaboratoryLudwig-Maximilians-University, Munich, Germany Department of UrologyUniversity Hospital, Munich, Germany
| | - Victoria Cabrera-Sharp
- Department of Comparative Biomedical SciencesThe Royal Veterinary College, University of London, London, UK
| | - Jordan E Read
- Department of Comparative Biomedical SciencesThe Royal Veterinary College, University of London, London, UK
| | - Amanda M de Mestre
- Department of Comparative Biomedical SciencesThe Royal Veterinary College, University of London, London, UK
| | - Ronan O'Riordan
- School of Biochemistry and Cell BiologyUniversity College Cork, Cork, Ireland
| | - Tom Moore
- School of Biochemistry and Cell BiologyUniversity College Cork, Cork, Ireland
| | - Robert Kammerer
- Institute of ImmunologyFriedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
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Falcón CR, Martínez FF, Carranza F, Cervi L, Motrán CC. In vivo expression of recombinant pregnancy-specific glycoprotein 1a inhibits the symptoms of collagen-induced arthritis. Am J Reprod Immunol 2014; 72:527-33. [PMID: 25112392 DOI: 10.1111/aji.12307] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 07/20/2014] [Indexed: 01/24/2023] Open
Abstract
PROBLEM The contribution of Pregnancy-specific glycoproteins (PSG), the major variant of PSG released into the circulation during pregnancy, to the pregnancy-dependent improvement of rheumatoid arthritis (RA) has still not been elucidated. METHOD OF STUDY Collagen-induced arthritis (CIA) was used to test the hypothesis that PSG1a when released into circulation has a modulatory role on the Th1-pathogenic response, thus improving the CIA symptoms. In vivo expression of PSG1a was induced by injection of the vaccinia (Vac)-based expression vector harboring the complete open-reading frame of PSG1a cDNA. RESULTS In vivo PSG1a expression during the induction of CIA ameliorated the clinical symptoms, thereby reducing the arthritis score and incidence. Significantly lower levels of IL-17, IL-6, and IFN-γ, but higher levels of TGF-β and IL-10 were secreted by collagen type II-stimulated spleen mononuclear cells from Vac-PSG1a-treated mice compared with control mice. Moreover, Vac-PSG1a treatment promoted the increase in splenic CD4+CD25+Foxp3+ Treg cells. CONCLUSION Pre-clinical Vac-PSG1a treatment suppressed the Th1- and Th17-type-specific responses, leading to an increase in splenic Treg cells as well as IL-10- and TGF-β-secreting cells, with the CIA symptoms being ameliorated.
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Affiliation(s)
- Cristian Roberto Falcón
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Ciudad Universitaria, Córdoba, Argentina
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Martinez FF, Cervi L, Knubel CP, Panzetta-Dutari GM, Motran CC. The Role of Pregnancy-Specific Glycoprotein 1a (PSG1a) in Regulating the Innate and Adaptive Immune Response. Am J Reprod Immunol 2013; 69:383-94. [DOI: 10.1111/aji.12089] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 01/10/2013] [Indexed: 12/20/2022] Open
Affiliation(s)
- Fernando F. Martinez
- Departamento de Bioquímica Clínica; Facultad de Ciencias Químicas; Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET); Universidad Nacional de Córdoba; Haya de la Torre y Medina Allende; Ciudad Universitaria; Córdoba; Argentina
| | - Laura Cervi
- Departamento de Bioquímica Clínica; Facultad de Ciencias Químicas; Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET); Universidad Nacional de Córdoba; Haya de la Torre y Medina Allende; Ciudad Universitaria; Córdoba; Argentina
| | - Carolina P. Knubel
- Departamento de Bioquímica Clínica; Facultad de Ciencias Químicas; Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET); Universidad Nacional de Córdoba; Haya de la Torre y Medina Allende; Ciudad Universitaria; Córdoba; Argentina
| | - Graciela M. Panzetta-Dutari
- Departamento de Bioquímica Clínica; Facultad de Ciencias Químicas; Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET); Universidad Nacional de Córdoba; Haya de la Torre y Medina Allende; Ciudad Universitaria; Córdoba; Argentina
| | - Claudia C. Motran
- Departamento de Bioquímica Clínica; Facultad de Ciencias Químicas; Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET); Universidad Nacional de Córdoba; Haya de la Torre y Medina Allende; Ciudad Universitaria; Córdoba; Argentina
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Blois SM, Tirado-González I, Wu J, Barrientos G, Johnson B, Warren J, Freitag N, Klapp BF, Irmak S, Ergun S, Dveskler GS. Early expression of pregnancy-specific glycoprotein 22 (PSG22) by trophoblast cells modulates angiogenesis in mice. Biol Reprod 2012; 86:191. [PMID: 22423048 DOI: 10.1095/biolreprod.111.098251] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Mouse and human pregnancy-specific glycoproteins (PSG) are known to exert immunomodulatory functions during pregnancy by inducing maternal leukocytes to secrete anti-inflammatory cytokines that promote a tolerogenic decidual microenvironment. Many such anti-inflammatory mediators also function as proangiogenic factors, which, along with the reported association of murine PSG with the uterine vasculature, suggest that PSG may contribute to the vascular adaptations necessary for successful implantation and placental development. We observed that PSG22 is strongly expressed around the embryonic crypt on Gestation Day 5.5, indicating that trophoblast giant cells are the main source of PSG22 during the early stages of pregnancy. PSG22 treatment up-regulated the secretion of transforming growth factor beta 1 and vascular endothelial growth factor A (VEGFA) in murine macrophages, uterine dendritic cells, and natural killer cells. A possible role of PSGs in uteroplacental angiogenesis is further supported by the finding that incubation of endothelial cells with PSG22 resulted in the formation of tubes in the presence and absence of VEGFA. We determined that PSG22, like human PSG1 and murine PSG17 and PSG23, binds to the heparan sulfate chains in syndecans. Therefore, our findings indicate that despite the independent evolution and expansion of human and rodent PSG, members in both families have conserved functions that include their ability to induce anti-inflammatory cytokines and proangiogenic factors as well as to induce the formation of capillary structures by endothelial cells. In summary, our results indicate that PSG22, the most abundant PSG expressed during mouse early pregnancy, is likely a major contributor to the establishment of a successful pregnancy.
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Affiliation(s)
- Sandra M Blois
- Charité Centrum 12 für Innere Medizin und Dermatologie, Reproductive Medicine Research Group, University Medicine of Berlin, Berlin, Germany.
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Expression and transcriptional regulation of individual pregnancy-specific glycoprotein genes in differentiating trophoblast cells. Placenta 2010; 31:312-9. [PMID: 20116096 DOI: 10.1016/j.placenta.2010.01.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Revised: 12/31/2009] [Accepted: 01/05/2010] [Indexed: 11/23/2022]
Abstract
Human pregnancy-specific glycoproteins (PSGs), encoded by eleven highly conserved genes, are the major placental polypeptides. Low PSG levels in maternal circulation have been associated with complicated pregnancies. However, expression of each PSG gene and their regulation during cytotrophoblast cell differentiation remain poorly explored. Herein, we analyze the expression of five PSG genes and demonstrate that they are almost undetectable in undifferentiated trophoblast, but are all transcribed in differentiated cells. Among them, PSG1, PSG3 and PSG5 genes achieve high mRNA levels while PSG7 and PSG9 are poorly expressed. In addition, total PSG proteins and transcripts markedly increase during trophoblast differentiation, preceding morphological syncytialization and betahCG expression. The 5' regulatory region contributes to the transcriptional control of PSG gene induction in trophoblast cells undergoing differentiation. This responsive region in PSG3 maps within a 130 bp promoter sequence, which overlaps the transcription start site and requires a functional Retinoic Acid Responsive Element (RARE) and a GA-binding protein (GABP) consensus site for basal and differentiation-dependent promoter activity, respectively. Present findings provide novel data for understanding the control of PSG gene expression and demonstrate that their proteins and transcripts represent early markers of trophoblast differentiation.
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15
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López-Díaz F, Nores R, Panzetta-Dutari G, Slavin D, Prieto C, Koritschoner NP, Bocco JL. RXRalpha regulates the pregnancy-specific glycoprotein 5 gene transcription through a functional retinoic acid responsive element. Placenta 2007; 28:898-906. [PMID: 17475324 DOI: 10.1016/j.placenta.2007.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Revised: 03/03/2007] [Accepted: 03/05/2007] [Indexed: 11/15/2022]
Abstract
Human pregnancy-specific glycoproteins (PSG) are major placental polypeptides encoded by eleven highly conserved genes expressed by the syncytiotrophoblast. The minimal promoter region of all PSG genes contains a putative Retinoic Acid Responsive Element (RARE) though the ability of retinoids to regulate PSG gene expression has not been established. Retinoid signaling pathway plays a key role for overall placenta biology and is essential for trophoblast differentiation. In this work, we investigated the participation of the RARE motif in the regulation of PSG5 gene transcription by retinoic acid and its receptors. The minimal promoter region of PSG5 gene was activated by RXRalpha but not by RARalpha, in a ligand-dependent manner. The RARE sequence of PSG5 gene promoter was recognized by endogenous RXRalpha present in placental nuclear extracts as well as by RXRalpha either over expressed in cultured non-placental cells or in vitro translated. Mutations at specific nucleotides within the RARE motif abrogated both RXRalpha DNA binding and transcriptional activation of PSG5 promoter mediated by RXRalpha. Moreover, endogenous PSG expression was significantly induced in trophoblast-derived Jeg-3 cells upon 9-cis retinoic acid treatment. Interestingly, the induction level was higher following methotrexate-induced differentiation of Jeg-3 cells to syncytiotrophoblast-like structures. Altogether, these data provide the first evidences demonstrating that transcriptional activity of PSG5 gene is responsive to an external signal involving the retinoids-RXRalpha axis through a conserved RARE motif shared by all PSG gene family members.
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Affiliation(s)
- F López-Díaz
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Centro de Investigaciones en Bioquímica Clínica e Inmunología-CONICET, Ciudad Universitaria, Haya de la Torre y M. Allende s/n, 5000 Cordoba, Argentina
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16
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Abstract
It has been suggested that the maternal immune system favors noncytotoxic, "TH-2" immune responses in order to tolerate the developing fetus. In some strains of mice, pregnant females will reject a male skin graft, even as they tolerate their male fetuses. This rejection is based on responsiveness to the male antigen H-Y. In this study we test whether functional maternal tolerance of male fetuses is critically dependent on the TH-2 cytokine Interleukin 10 (IL-10). Normal and IL-10-deficient (10-KO) females were sensitized against H-Y by intraperitoneal injection of male spleen cells before mating with 10-KO males. Litters born to 10-KO females were of comparable size to those born to normal females of the same genetic background. The proportion of males per litter was not adversely affected by IL-10 deficiency. Taken together, our work and others suggest that IL-10 may not be critically important for maternal tolerance of the fetus and extends the evidence against the idea that successful mouse pregnancy depends on TH-2 deviation of the maternal immune system.
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Affiliation(s)
- Elizabeth A Bonney
- Departments of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia, USA.
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17
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Modifications de la réponse immune durant la grossesse : implications dans la polyarthrite rhumatoïde et le lupus systémique. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.rhum.2005.02.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Vaiman D, Mondon F, Garcès-Duran A, Mignot TM, Robert B, Rebourcet R, Jammes H, Chelbi ST, Quetin F, Marceau G, Sapin V, Piumi F, Danan JL, Rigourd V, Carbonne B, Ferré F. Hypoxia-activated genes from early placenta are elevated in preeclampsia, but not in Intra-Uterine Growth Retardation. BMC Genomics 2005; 6:111. [PMID: 16129025 PMCID: PMC1236921 DOI: 10.1186/1471-2164-6-111] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2005] [Accepted: 08/29/2005] [Indexed: 11/25/2022] Open
Abstract
Background As a first step to explore the possible relationships existing between the effects of low oxygen pressure in the first trimester placenta and placental pathologies developing from mid-gestation, two subtracted libraries totaling 2304 cDNA clones were constructed. For achieving this, two reciprocal suppressive/subtractive hybridization procedures (SSH) were applied to early (11 weeks) human placental villi after incubation either in normoxic or in hypoxic conditions. The clones from both libraries (1440 hypoxia-specific and 864 normoxia-specific) were spotted on nylon macroarrays. Complex cDNAs probes prepared from placental villi (either from early pregnancy, after hypoxic or normoxic culture conditions, or near term for controls or pathological placentas) were hybridized to the membranes. Results Three hundred and fifty nine clones presenting a hybridization signal above the background were sequenced and shown to correspond to 276 different genes. Nine of these genes are mitochondrial, while 267 are nuclear. Specific expression profiles characteristic of preeclampsia (PE) could be identified, as well as profiles specific of intra-uterine growth retardation (IUGR). Focusing on the chromosomal distribution of the fraction of genes that responded in at least one hybridization experiment, we could observe a highly significant chromosomal clustering of 54 genes into 8 chromosomal regions, four of which containing imprinted genes. Comparative mapping data indicate that these imprinted clusters are maintained in synteny in mice, and apparently in cattle and pigs, suggesting that the maintenance of such syntenies is requested for achieving a normal placental physiology in eutherian mammals. Conclusion We could demonstrate that genes induced in PE were also genes highly expressed under hypoxic conditions (P = 5.10-5), which was not the case for isolated IUGR. Highly expressed placental genes may be in syntenies conserved interspecifically, suggesting that the maintenance of such clusters is requested for achieving a normal placental physiology in eutherian mammals.
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Affiliation(s)
- Daniel Vaiman
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
- Département de Génétique Animale, INRA, 78352, Jouy-en-Josas,, France
| | - Françoise Mondon
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Alexandra Garcès-Duran
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Thérèse-Marie Mignot
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Brigitte Robert
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Régis Rebourcet
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Hélène Jammes
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Sonia T Chelbi
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Frédérique Quetin
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
| | - Geoffrey Marceau
- Laboratoire de Biochimie Medicale, Faculte de Medecine et de Pharmacie, UMR INSERM U.384 UA, 28 Place Henri Dunant, BP. 38, 63000 Clermont-Ferrand, France
| | - Vincent Sapin
- Laboratoire de Biochimie Medicale, Faculte de Medecine et de Pharmacie, UMR INSERM U.384 UA, 28 Place Henri Dunant, BP. 38, 63000 Clermont-Ferrand, France
| | - François Piumi
- Centre de Ressources Biologiques, Laboratoire de Radiobiologie et d'Etudes des Génomes, Centre de Recherches INRA de Jouy-en-Josas, INRA, CRJJ, 78352 Jouy-en-Josas, France
| | - Jean-Louis Danan
- UPR CNRS 9078, Université René Descartes ParisV, Site Necker, 156 rue de Vaugirard, 75015 Paris, France
| | - Virginie Rigourd
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
- Service de Réanimation Néonatale, Institut de Puériculture et de Périnatalogie, 26, boulevard Brune, 75014 Paris, France
| | - Bruno Carbonne
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
- Service de Gynecologie-Obstetrique, Hopital Saint Antoine, 184 rue du Faubourg Saint Antoine, 75012 Paris, France
| | - Françoise Ferré
- Génétique et Epigénétique des Pathologies Placentaires, GEPP, U709 INSERM-Université René Descartes-Institut Alfred Jost, Pavillon Baudelocque, Hôpital Cochin, 123 Boulevard de Port-Royal, 75014, Paris, France
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Doherty TM, Demissie A, Menzies D, Andersen P, Rook G, Zumla A. Effect of sample handling on analysis of cytokine responses to Mycobacterium tuberculosis in clinical samples using ELISA, ELISPOT and quantitative PCR. J Immunol Methods 2005; 298:129-41. [PMID: 15847803 DOI: 10.1016/j.jim.2005.01.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2004] [Accepted: 01/19/2005] [Indexed: 11/19/2022]
Abstract
Measuring cytokine responses to infection has proven to be invaluable for the understanding of immunity to tuberculosis in the laboratory. However, far less data are available from studies in humans and these have often produced conflicting results. Here we describe a comprehensive multi-center comparison of the most commonly used protocols for cytokine analysis: ELISA, ELISPOT and RT-PCR, in cohorts of TB patients, their household contacts and community controls. In particular, we have studied the effect on these protocols of conditions that commonly prevail in field studies, such as delays between sample collection and analysis, or different source material, such as whole blood or frozen PBMC. The results clearly show that while there is good correlation between the methods under optimal conditions, each method has strengths and weaknesses that render them more or less suitable for particular types of analyses. Researchers should carefully consider these factors when planning human field studies.
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Affiliation(s)
- T Mark Doherty
- Department of Tuberculosis Immunology, Statens Serum Institute, Copenhagen, Denmark.
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Ha CT, Waterhouse R, Wessells J, Wu JA, Dveksler GS. Binding of pregnancy-specific glycoprotein 17 to CD9 on macrophages induces secretion of IL-10, IL-6, PGE2, and TGF-beta1. J Leukoc Biol 2005; 77:948-57. [PMID: 15772125 DOI: 10.1189/jlb.0804453] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Pregnancy-specific glycoproteins (PSGs) are a family of secreted proteins produced by the placenta, which are believed to have a critical role in pregnancy success. Treatment of monocytes with three members of the human PSGs induces interleukin (IL)-10, IL-6, and transforming growth factor-beta(1) (TGF-beta(1)) secretion. To determine whether human and murine PSGs have similar functions and use the same receptor, we treated wild-type and CD9-deficient macrophages with murine PSG17N and human PSG1 and -11. Our data show that murine PSG17N induced secretion of IL-10, IL-6, prostaglandin E(2), and TGF-beta(1) and that CD9 expression is required for the observed induction of cytokines. Therefore, the ability of PSG17 to induce anti-inflammatory cytokines parallels that of members of the human PSG family, albeit human and murine PSGs use different receptors, as CD9-deficient and wild-type macrophages responded equally to human PSGs. We then proceeded to examine the signaling mechanisms responsible for the CD9-mediated response to PSG17. Inhibition of cyclooxygenase 2 significantly reduced the PSG17N-mediated increase in IL-10 and IL-6. Further characterization of the response to PSG17 indicated that cyclic adenosine monophosphate-dependent protein kinase A (PKA) is involved in the up-regulation of IL-10 and IL-6, and it is not required for the induction of TGF-beta(1). Conversely, treatment of macrophages with a PKC inhibitor reduced the PSG17-mediated induction of TGF-beta(1), IL-6, and IL-10 significantly. The induction of anti-inflammatory cytokines by various PSGs supports the hypothesis that these glycoproteins have an essential role in the regulation of the maternal immune response in species with hemochorial placentation.
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Affiliation(s)
- Cam T Ha
- Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
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Nores R, Blanchon L, López-Díaz F, Bocco JL, Patrito LC, Sapin V, Panzetta-Dutari GM. Transcriptional control of the human pregnancy-specific glycoprotein 5 gene is dependent on two GT-boxes recognized by the ubiquitous specificity protein 1 (Sp1) transcription factor. Placenta 2004; 25:9-19. [PMID: 15013634 DOI: 10.1016/s0143-4004(03)00213-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2003] [Revised: 07/03/2003] [Accepted: 07/29/2003] [Indexed: 11/28/2022]
Abstract
Pregnancy-specific glycoprotein 5 gene (PSG-5) belongs to the human pregnancy-specific glycoprotein family, encoded by eleven highly similar and transcriptionally active genes. High levels of PSG biosynthesis are restricted to the placenta syncytiotrophoblast and are essential for the maintenance of normal gestation in mammalian species. We have investigated here the nature of the transcription factors that recognize the FP1 (-455/-433) and the CPE (-147/-140) regulatory sequences that significantly contribute to basal PSG-5 promoter activity. Both elements bear a similar GT-box motif; and DNA-protein complex formation, as well as promoter activity, is largely dependent on the integrity of these GT-box sequences. Gel shift, super gel shift and UV-crosslinking experiments clearly demonstrate that the ubiquitous specificity protein 1 (Sp1) is the major transcription factor involved in complex formation with both cis-acting elements in normal term placenta tissue and in PSG-non-expressing COS-7 cells. Furthermore, transfection experiments indicate that Sp1 activates PSG-5 promoter constructs. In addition, we show that Sp1 is indeed co-expressed with PSG genes in the syncytiotrophoblast cells, stressing its potential role in the in vivo regulation of PSG expression.
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Affiliation(s)
- R Nores
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre, Ciudad Universitaria, 5000 Córdoba, Argentina
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22
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Koopman LA, Kopcow HD, Rybalov B, Boyson JE, Orange JS, Schatz F, Masch R, Lockwood CJ, Schachter AD, Park PJ, Strominger JL. Human decidual natural killer cells are a unique NK cell subset with immunomodulatory potential. ACTA ACUST UNITED AC 2003; 198:1201-12. [PMID: 14568979 PMCID: PMC2194228 DOI: 10.1084/jem.20030305] [Citation(s) in RCA: 619] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Natural killer cells constitute 50–90% of lymphocytes in human uterine decidua in early pregnancy. Here, CD56bright uterine decidual NK (dNK) cells were compared with the CD56bright and CD56dim peripheral NK cell subsets by microarray analysis, with verification of results by flow cytometry and RT-PCR. Among the ∼10,000 genes studied, 278 genes showed at least a threefold change with P ≤ 0.001 when comparing the dNK and peripheral NK cell subsets, most displaying increased expression in dNK cells. The largest number of these encoded surface proteins, including the unusual lectinlike receptors NKG2E and Ly-49L, several killer cell Ig-like receptors, the integrin subunits αD, αX, β1, and β5, and multiple tetraspanins (CD9, CD151, CD53, CD63, and TSPAN-5). Additionally, two secreted proteins, galectin-1 and progestagen-associated protein 14, known to have immunomodulatory functions, were selectively expressed in dNK cells.
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Affiliation(s)
- Louise A Koopman
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA.
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23
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Miner D, Rajkovic A. Identification of expressed sequence tags preferentially expressed in human placentas by in silico subtraction. Prenat Diagn 2003; 23:410-9. [PMID: 12749040 DOI: 10.1002/pd.608] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVES To identify expressed sequence tag (EST) clusters preferentially expressed in placentas. METHODS The National Center for Biotechnology's online UniGene database contains 14 placenta libraries. In silico (computer-based) subtraction compared placenta libraries against the remaining libraries to identify transcripts preferentially expressed in placentas. For known genes, placental expression or their use in prenatal diagnosis was then explored online using LocusLink and PubMed. RESULTS Placentas preferentially expressed 475 EST clusters. Of these, 18 EST clusters with no known function were expressed exclusively in placentas. Of the remaining 457 EST clusters, 90 showed preferential placental expression by >/=25 times. Of these 90, literature searches on the 45 EST clusters with known functions showed 44 linked to placental physiology or proposed as markers for prenatal diagnosis [i.e. beta-hCG, pregnancy-specific glycoproteins, human placental lactogens, pregnancy-associated plasma protein A (PAPP-A)]. Selected genes with known function in pregnancy but whose preferential placental expression fell below the factor of 25 threshold were also identified. CONCLUSION In silico subtraction identified 44 previously studied genes involved in placental physiology as well as 63 EST clusters preferentially expressed in placental tissue, which may serve as targets for future studies seeking novel markers for prenatal diagnosis or to better understand placental genetics.
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Affiliation(s)
- David Miner
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030, USA
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Motrán CC, Díaz FL, Gruppi A, Slavin D, Chatton B, Bocco JL. Human pregnancy‐specific glycoprotein 1a (PSG1a) induces alternative activation in human and mouse monocytes and suppresses the accessory cell‐dependent T cell proliferation. J Leukoc Biol 2002. [DOI: 10.1189/jlb.72.3.512] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Claudia Cristina Motrán
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina; and
| | - Fernando López Díaz
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina; and
| | - Adriana Gruppi
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina; and
| | - Daniela Slavin
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina; and
| | - Bruno Chatton
- Ecole Supérieure de Biotechnologie de Strasbourg, Université Louis Pasteur, Illkirch, France
| | - José Luis Bocco
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina; and
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Abstract
Pregnancy-specific glycoproteins (PSGs) are a family of highly similar secreted proteins produced by the placenta. PSG homologs have been identified in primates and rodents. Members of the human and murine PSG family induce secretion of antiinflammatory cytokines in mononuclear phagocytes. For the purpose of cloning the receptor, we screened a RAW 264.7 cell cDNA expression library. The PSG17 receptor was identified as the tetraspanin, CD9. We confirmed binding of PSG17 to CD9 by ELISA, flow cytometry, alkaline phosphatase binding assays, and in situ rosetting. Anti-CD9 monoclonal antibody inhibited binding of PSG17 to CD9-transfected cells and RAW 264.7 cells. Moreover, PSG17 binding to macrophages from CD9-deficient mice was significantly reduced. We then tested whether PSG17 binds to other members of the murine tetraspanin family. PSG17 did not bind to cells transfected with CD53, CD63, CD81, CD82, or CD151, suggesting that PSG17-CD9 binding is a specific interaction. We have identified the first receptor for a murine PSG as well as the first natural ligand for a member of the tetraspanin superfamily.
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Affiliation(s)
- Roseann Waterhouse
- Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799, USA
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Zhou GQ, Hammarström S. Pregnancy-specific glycoprotein (PSG) in baboon (Papio hamadryas): family size, domain structure, and prediction of a functional region in primate PSGs. Biol Reprod 2001; 64:90-9. [PMID: 11133662 DOI: 10.1095/biolreprod64.1.90] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Pregnancy-specific glycoprotein (PSG) constitutes a major component of serum of pregnant women and appears to be essential for a successful pregnancy. Its function is, however, still unknown. Because of the evolutionary divergence between human and rodent PSG, functional studies may require a primate animal model. We have characterized PSG transcripts in a baboon placenta cDNA library and analyzed baboon genomic DNA. The main PSG isoform had the domain structure N-A1-B2-C similar to the human type IIa isoform. The type I isoform (N-A1-A2-B2-C) was also expressed. Fifteen similar PSG genes were identified of which at least nine were simultaneously expressed in third trimester baboon placenta. Thus, the baboon PSG family was as complex as that of humans. Recombinant baboon PSG (isoform IIa) had a molecular weight of 38 kDa and reacted with antibodies against human PSG. Comparative analysis of 43 N-domain amino acid sequences of PSG from four species and nine primate carcinoembryonic antigen subgroup N domain sequences identified a number of residues in the GFCC'C" ss-sheet and FG loop that are probable candidates for PSG binding to its putative ligand.
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Affiliation(s)
- G Q Zhou
- Department of Immunology, Umeå University, SE-90185 Umeå, Sweden
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27
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