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Presicce P, Cappelletti M, Morselli M, Ma F, Senthamaraikannan P, Protti G, Nadel BB, Aryan L, Eghbali M, Salwinski L, Pithia N, De Franco E, Miller LA, Pellegrini M, Jobe AH, Chougnet CA, Kallapur SG. Amnion responses to intrauterine inflammation and effects of inhibition of TNF signaling in preterm Rhesus macaque. iScience 2023; 26:108118. [PMID: 37953944 PMCID: PMC10637919 DOI: 10.1016/j.isci.2023.108118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/26/2023] [Accepted: 09/29/2023] [Indexed: 11/14/2023] Open
Abstract
Intrauterine infection/inflammation (IUI) is a frequent complication of pregnancy leading to preterm labor and fetal inflammation. How inflammation is modulated at the maternal-fetal interface is unresolved. We compared transcriptomics of amnion (a fetal tissue in contact with amniotic fluid) in a preterm Rhesus macaque model of IUI induced by lipopolysaccharide with human cohorts of chorioamnionitis. Bulk RNA sequencing (RNA-seq) amnion transcriptomic profiles were remarkably similar in both Rhesus and human subjects and revealed that induction of key labor-mediating genes such as IL1 and IL6 was dependent on nuclear factor κB (NF-κB) signaling and reversed by the anti-tumor necrosis factor (TNF) antibody Adalimumab. Inhibition of collagen biosynthesis by IUI was partially restored by Adalimumab. Interestingly, single-cell transcriptomics, flow cytometry, and immunohistology demonstrated that a subset of amnion mesenchymal cells (AMCs) increase CD14 and other myeloid cell markers during IUI both in the human and Rhesus macaque. Our data suggest that CD14+ AMCs represent activated AMCs at the maternal-fetal interface.
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Affiliation(s)
- Pietro Presicce
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Monica Cappelletti
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Marco Morselli
- Department of Molecular, Cell and Developmental Biology Medicine at the University of California Los Angeles, Los Angeles, CA, USA
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
| | - Feiyang Ma
- Department of Molecular, Cell and Developmental Biology Medicine at the University of California Los Angeles, Los Angeles, CA, USA
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
| | - Paranthaman Senthamaraikannan
- Division of Neonatology/Pulmonary Biology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Giulia Protti
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Milan, Italy
| | - Brian B. Nadel
- Department of Molecular Cellular and Developmental Biology, and Institute for Genomics and Proteomics, University of California Los Angeles, Los Angeles, CA, USA
- California National Primate Research Center, University of California Davis, Davis, CA, USA
| | - Laila Aryan
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Mansoureh Eghbali
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Lukasz Salwinski
- UCLA-DOE Institute of Genomics and Proteomics, University of California Los Angeles, Los Angeles, CA, USA
| | - Neema Pithia
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
| | - Emily De Franco
- Department of Obstetrics/Gynecology, Maternal-Fetal Medicine, University of Cincinnati, Cincinnati, OH, USA
| | - Lisa A. Miller
- Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California Davis, CA, USA
| | - Matteo Pellegrini
- Department of Molecular, Cell and Developmental Biology Medicine at the University of California Los Angeles, Los Angeles, CA, USA
- Institute for Quantitative and Computational Biosciences – Collaboratory at the University of California Los Angeles, Los Angeles, CA, USA
| | - Alan H. Jobe
- Division of Neonatology/Pulmonary Biology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, The University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Claire A. Chougnet
- Division of Immunobiology, Cincinnati Children’s Hospital Research Foundation, and the University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Suhas G. Kallapur
- Divisions of Neonatology and Developmental Biology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA
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Kyathanahalli C, Snedden M, Hirsch E. Is human labor at term an inflammatory condition?†. Biol Reprod 2023; 108:23-40. [PMID: 36173900 PMCID: PMC10060716 DOI: 10.1093/biolre/ioac182] [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: 05/11/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 01/20/2023] Open
Abstract
Parturition at term in normal pregnancy follows a predictable sequence of events. There is some evidence that a state of inflammation prevails in the reproductive tissues during labor at term, but it is uncertain whether this phenomenon is the initiating signal for parturition. The absence of a clear temporal sequence of inflammatory events prior to labor casts doubt on the concept that normal human labor at term is primarily the result of an inflammatory cascade. This review examines evidence linking parturition and inflammation in order to address whether inflammation is a cause of labor, a consequence of labor, or a separate but related phenomenon. Finally, we identify and suggest ways to reconcile inconsistencies regarding definitions of labor onset in published research, which may contribute to the variability in conclusions regarding the genesis and maintenance of parturition. A more thorough understanding of the processes underlying normal parturition at term may lead to novel insights regarding abnormal labor, including spontaneous preterm labor, preterm premature rupture of the fetal membranes, and dysfunctional labor, and the role of inflammation in each.
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Affiliation(s)
- Chandrashekara Kyathanahalli
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Madeline Snedden
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA
| | - Emmet Hirsch
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
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3
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An In Vivo Screening Model for Investigation of Pathophysiology of Human Implantation Failure. Biomolecules 2022; 13:biom13010079. [PMID: 36671464 PMCID: PMC9856033 DOI: 10.3390/biom13010079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/14/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
To improve current infertility treatments, it is important to understand the pathophysiology of implantation failure. However, many molecules are involved in the normal biological process of implantation and the roles of each molecule and the molecular mechanism are not fully understood. This review highlights the hemagglutinating virus of Japan (HVJ; Sendai virus) envelope (HVJ-E) vector, which uses inactivated viral particles as a local and transient gene transfer system to the murine uterus during the implantation period in order to investigate the molecular mechanism of implantation. In vivo screening in mice using the HVJ-E vector system suggests that signal transducer and activator of transcription-3 (Stat-3) could be a diagnostic and therapeutic target for women with a history of implantation failure. The HVJ-E vector system hardly induces complete defects in genes; however, it not only suppresses but also transiently overexpresses some genes in the murine uterus. These features may be useful in investigating the pathophysiology of implantation failure in women.
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Belville C, Ponelle-Chachuat F, Rouzaire M, Gross C, Pereira B, Gallot D, Sapin V, Blanchon L. Physiological TLR4 regulation in human fetal membranes as an explicative mechanism of a pathological preterm case. eLife 2022; 11:71521. [PMID: 35119365 PMCID: PMC8816379 DOI: 10.7554/elife.71521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 01/17/2022] [Indexed: 12/15/2022] Open
Abstract
The integrity of human fetal membranes is crucial for harmonious fetal development throughout pregnancy. Their premature rupture is often the consequence of a physiological phenomenon that has been exacerbated. Beyond all the implied biological processes, inflammation is of primary importance and is qualified as ‘sterile’ at the end of pregnancy. In this study, complementary methylomic and transcriptomic strategies on amnion and choriodecidua explants obtained from the altered (cervix zone) and intact fetal membranes at term and before labour were used. By cross-analysing genome-wide studies strengthened by in vitro experiments, we deciphered how the expression of toll-like receptor 4 (TLR4), an actor in pathological fetal membrane rupture, is controlled. Indeed, it is differentially regulated in the altered zone and between both layers by a dual mechanism: (1) the methylation of TLR4 and miRNA promoters and (2) targeting by miRNA (let-7a-2 and miR-125b-1) acting on the 3’-UTR of TLR4. Consequently, this study demonstrates that fine regulation of TLR4 is required for sterile inflammation establishment at the end of pregnancy and that it may be dysregulated in the pathological premature rupture of membranes.
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Affiliation(s)
- Corinne Belville
- Team 'Translational approach to epithelial injury and repair', iGReD, Université Clermont Auvergne, Clermont-ferrand, France
| | - Flora Ponelle-Chachuat
- Team 'Translational approach to epithelial injury and repair', iGReD, Université Clermont Auvergne, Clermont-ferrand, France
| | - Marion Rouzaire
- Team 'Translational approach to epithelial injury and repair', iGReD, Université Clermont Auvergne, Clermont-ferrand, France
| | - Christelle Gross
- Team 'Translational approach to epithelial injury and repair', iGReD, Université Clermont Auvergne, Clermont-ferrand, France
| | - Bruno Pereira
- CHU Clermont-Ferrand, Biostatistics unit (DRCI) Department, clermont-ferrand, France
| | - Denis Gallot
- Team 'Translational approach to epithelial injury and repair', iGReD, Université Clermont Auvergne, Clermont-ferrand, France.,CHU Clermont-Ferrand, Obstetrics and Gynaecology Department, Clermont-ferrand, France
| | - Vincent Sapin
- Team 'Translational approach to epithelial injury and repair', iGReD, Université Clermont Auvergne, Clermont-ferrand, France.,CHU Clermont-Ferrand, Biochemistry and Molecular Genetic Department, Clermont-Ferrand, France
| | - Loïc Blanchon
- Team 'Translational approach to epithelial injury and repair', iGReD, Université Clermont Auvergne, Clermont-ferrand, France
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Kim TS, Yoon JY, Kim CH, Choi EJ, Kim YH, Kim EJ. Dexmedetomidine and LPS co-treatment attenuates inflammatory response on WISH cells via inhibition of p38/NF-κB signaling pathway. J Dent Anesth Pain Med 2022; 22:277-287. [PMID: 35991362 PMCID: PMC9358267 DOI: 10.17245/jdapm.2022.22.4.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/13/2022] [Accepted: 07/16/2022] [Indexed: 11/16/2022] Open
Abstract
Background Inflammatory dental diseases that occur during pregnancy can cause preterm labor and/or intrauterine growth restriction. Therefore, proactive treatment of dental diseases is necessary during pregnancy. Dexmedetomidine (DEX) is a widely used sedative in the dental field, but research on the effect of DEX on pregnancy is currently insufficient. In this study, we investigated the effects of co-treatment with DEX and lipopolysaccharide (LPS) on inflammatory responses in human amnion-derived WISH cells. Methods Human amnion-derived WISH cells were treated with 0.001, 0.01, 0.1, and 1 µg/mL DEX with 1 µg/mL LPS for 24 h. Cytotoxicity of WISH cells was evaluated by 3-(4,5-dimethylthiazol)-2,5-diphenyltetrazolium bromide (MTT) assay. The protein expression of cyclooxygenase-2 (COX-2), prostaglandin E2 (PGE2), p38, and nuclear factor kappa B (NF-κB) was examined by western blot analysis. The mRNA expression of pro-inflammatory cytokines such as interleukin (IL)-1β and tumor necrosis factor (TNF)-α was analyzed by real-time quantitative polymerase chain reaction. Results Co-treatment with DEX and LPS showed no cytotoxicity in the WISH cells. The mRNA expression of IL-1β and TNF-α decreased after co-treatment with DEX and LPS. DEX and LPS co-treatment decreased the protein expression of COX-2, PGE2, phospho-p38, and phospho-NF-κB in WISH cells. Conclusion Co-treatment with DEX and LPS suppressed the expression of COX-2 and PGE2, as well as pro-inflammatory cytokines such as IL-1β and TNF-α in WISH cells. In addition, the anti-inflammatory effect of DEX and LPS co-treatment was mediated by the inhibition of p38/NF-κB activation.
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Affiliation(s)
- Tae-Sung Kim
- Department of Dental Anesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
| | - Ji-Young Yoon
- Department of Dental Anesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
| | - Cheul-Hong Kim
- Department of Dental Anesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
| | - Eun-Ji Choi
- Department of Dental Anesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
| | - Yeon Ha Kim
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Eun-Jung Kim
- Department of Dental Anesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
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Rasheed ZBM, Lee YS, Kim SH, Teoh T, MacIntyre DA, Bennett PR, Sykes L. 15-Deoxy-Delta-12,14-prostaglandin J2 modulates pro-labour and pro-inflammatory responses in human myocytes, vaginal and amnion epithelial cells. Front Endocrinol (Lausanne) 2022; 13:983924. [PMID: 36213265 PMCID: PMC9533017 DOI: 10.3389/fendo.2022.983924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Prematurity is the leading cause of childhood death under the age of five. The aetiology of preterm birth is multifactorial; however, inflammation and infection are the most common causal factors, supporting a potential role for immunomodulation as a therapeutic strategy. 15-Deoxy-Delta-12,14-prostaglandin J2 (15dPGJ2) is an anti-inflammatory prostaglandin and has been shown to delay lipopolysaccharide (LPS) induced preterm labour in mice and improve pup survival. This study explores the immunomodulatory effect of 15dPGJ2 on the transcription factors NF-κB and AP-1, pro-inflammatory cytokines, and contraction associated proteins in human cultured myocytes, vaginal epithelial cell line (VECs) and primary amnion epithelial cells (AECs). METHODS Cells were pre-incubated with 32µM of 15dPGJ2 and stimulated with 1ng/mL of IL-1β as an in vitro model of inflammation. Western immunoblotting was used to detect phosphorylated p-65 and phosphorylated c-Jun as markers of NF-κB and AP-1 activation, respectively. mRNA expression of the pro-inflammatory cytokines IL-6, IL-8, and TNF-α was examined, and protein expression of COX-2 and PGE2 were detected by western immunoblotting and ELISA respectively. Myometrial contractility was examined ex-vivo using a myograph. RESULTS 15dPGJ2 inhibited IL-1β-induced activation of NF-κB and AP-1, and expression of IL-6, IL-8, TNF-α, COX-2 and PGE2 in myocytes, with no effect on myometrial contractility or cell viability. Despite inhibiting IL-1β-induced activation of NF-κB, expression of IL-6, TNF-α, and COX-2, 15dPGJ2 led to activation of AP-1, increased production of PGE2 and increased cell death in VECs and AECs. CONCLUSION We conclude that 15dPGJ2 has differential effects on inflammatory modulation depending on cell type and is therefore unlikely to be a useful therapeutic agent for the prevention of preterm birth.
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Affiliation(s)
- Zahirrah BM. Rasheed
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- Universiti Kebangsaan Malaysia (UKM) Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Yun S. Lee
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- March of Dimes European Preterm Birth Prematurity Research Centre, Imperial College London, London, United Kingdom
| | - Sung H. Kim
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- March of Dimes European Preterm Birth Prematurity Research Centre, Imperial College London, London, United Kingdom
| | - Tg Teoh
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- March of Dimes European Preterm Birth Prematurity Research Centre, Imperial College London, London, United Kingdom
- The Parasol Foundation Centre for Women’s Health and Cancer Research, St Mary’s Hospital, Imperial College Healthcare National Health Service (NHS) Trust, London, United Kingdom
| | - David A. MacIntyre
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- March of Dimes European Preterm Birth Prematurity Research Centre, Imperial College London, London, United Kingdom
| | - Phillip R. Bennett
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- March of Dimes European Preterm Birth Prematurity Research Centre, Imperial College London, London, United Kingdom
| | - Lynne Sykes
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- March of Dimes European Preterm Birth Prematurity Research Centre, Imperial College London, London, United Kingdom
- The Parasol Foundation Centre for Women’s Health and Cancer Research, St Mary’s Hospital, Imperial College Healthcare National Health Service (NHS) Trust, London, United Kingdom
- *Correspondence: Lynne Sykes,
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Boros-Rausch A, Shynlova O, Lye SJ. A Broad-Spectrum Chemokine Inhibitor Blocks Inflammation-Induced Myometrial Myocyte-Macrophage Crosstalk and Myometrial Contraction. Cells 2021; 11:cells11010128. [PMID: 35011690 PMCID: PMC8750067 DOI: 10.3390/cells11010128] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/28/2021] [Accepted: 12/30/2021] [Indexed: 01/10/2023] Open
Abstract
Prophylactic administration of the broad-spectrum chemokine inhibitor (BSCI) FX125L has been shown to suppress uterine contraction, prevent preterm birth (PTB) induced by Group B Streptococcus in nonhuman primates, and inhibit uterine cytokine/chemokine expression in a murine model of bacterial endotoxin (LPS)-induced PTB. This study aimed to determine the mechanism(s) of BSCI action on human myometrial smooth muscle cells. We hypothesized that BSCI prevents infection-induced contraction of uterine myocytes by inhibiting the secretion of pro-inflammatory cytokines, the expression of contraction-associated proteins and disruption of myocyte interaction with tissue macrophages. Myometrial biopsies and peripheral blood were collected from women at term (not in labour) undergoing an elective caesarean section. Myocytes were isolated and treated with LPS with/out BSCI; conditioned media was collected; cytokine secretion was analyzed by ELISA; and protein expression was detected by immunoblotting and immunocytochemistry. Functional gap junction formation was assessed by parachute assay. Collagen lattices were used to examine myocyte contraction with/out blood-derived macrophages and BSCI. We found that BSCI inhibited (1) LPS-induced activation of transcription factor NF-kB; (2) secretion of chemokines (MCP-1/CCL2 and IL-8/CXCL8); (3) Connexin43-mediated intercellular connectivity, thereby preventing myocyte–macrophage crosstalk; and (4) myocyte contraction. BSCI represents novel therapeutics for prevention of inflammation-induced PTB in women.
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Affiliation(s)
- Adam Boros-Rausch
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Suite 6-1017, Toronto, ON M5G 1X5, Canada; (A.B.-R.); (S.J.L.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Suite 6-1017, Toronto, ON M5G 1X5, Canada; (A.B.-R.); (S.J.L.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada
- Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON M5S 1A1, Canada
- Correspondence: ; Tel.: +1-416-586-4800 (ext. 5635); Fax: +1-416-586-5116
| | - Stephen James Lye
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Suite 6-1017, Toronto, ON M5G 1X5, Canada; (A.B.-R.); (S.J.L.)
- Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada
- Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON M5S 1A1, Canada
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Leimert KB, Xu W, Princ MM, Chemtob S, Olson DM. Inflammatory Amplification: A Central Tenet of Uterine Transition for Labor. Front Cell Infect Microbiol 2021; 11:660983. [PMID: 34490133 PMCID: PMC8417473 DOI: 10.3389/fcimb.2021.660983] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 06/30/2021] [Indexed: 11/23/2022] Open
Abstract
In preparation for delivery, the uterus transitions from actively maintaining quiescence during pregnancy to an active parturient state. This transition occurs as a result of the accumulation of pro-inflammatory signals which are amplified by positive feedback interactions involving paracrine and autocrine signaling at the level of each intrauterine cell and tissue. The amplification events occur in parallel until they reach a certain threshold, ‘tipping the scale’ and contributing to processes of uterine activation and functional progesterone withdrawal. The described signaling interactions all occur upstream from the presentation of clinical labor symptoms. In this review, we will: 1) describe the different physiological processes involved in uterine transition for each intrauterine tissue; 2) compare and contrast the current models of labor initiation; 3) introduce innovative models for measuring paracrine inflammatory interactions; and 4) discuss the therapeutic value in identifying and targeting key players in this crucial event for preterm birth.
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Affiliation(s)
- Kelycia B Leimert
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
| | - Wendy Xu
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
| | - Magdalena M Princ
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
| | - Sylvain Chemtob
- Department of Pediatrics, Ophthalmology and Pharmacology, CHU Sainte-Justine Research Center, Montreal, QC, Canada
| | - David M Olson
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, AB, Canada
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Singh N, Herbert B, Sooranna G, Shah NM, Das A, Sooranna SR, Johnson MR. Is there an inflammatory stimulus to human term labour? PLoS One 2021; 16:e0256545. [PMID: 34464407 PMCID: PMC8407546 DOI: 10.1371/journal.pone.0256545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 08/09/2021] [Indexed: 11/20/2022] Open
Abstract
Inflammation is thought to play a pivotal role in the onset of term and some forms of preterm labour. Although, we recently found that myometrial inflammation is a consequence rather than a cause of term labour, there are several other reproductive tissues, including amnion, choriodecidua parietalis and decidua basalis, where the inflammatory stimulus to labour may occur. To investigate this, we have obtained amnion, choriodecidual parietalis and decidua basalis samples from women at various stages of pregnancy and spontaneous labour. The inflammatory cytokine profile in each tissue was determine by Bio-Plex Pro® cytokine multiplex assays and quantitative RT-PCR. Active motif assay was used to study transcription activation in the choriodecidua parietalis. Quantitative RT-PCR was use to study the pro-labour genes (PGHS-2, PGDH, OTR and CX43) in all of the tissues at the onset of labour and oxytocin (OT) mRNA expression in the choriodecidual parietalis and decidua basalis. Statistical significance was ascribed to a P value <0.05. In the amnion and choriodecidua parietalis, the mRNA levels of various cytokines decreased from preterm no labour to term no labour samples, but the protein levels were unchanged. The choriodecidua parietalis showed increase in the protein levels of IL-1β and IL-6 in the term early labour samples. In the amnion and decidua basalis, the protein levels of several cytokines rose in term established labour. The multiples of the median derived from the 19-plex cytokine assay were greater in term early labour and term established labour samples from the choriodecidua parietalis, but only in term established labour for myometrium. These data suggest that the inflammatory stimulus to labour may begin in the choriodecidua parietalis, but the absence of any change in prolabour factor mRNA levels suggests that the cytokines may act on the myometrium where we observed changes in transcription factor activation and increases in prolabour gene expression in earlier studies.
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Affiliation(s)
- Natasha Singh
- Chelsea and Westminster Hospital, London, United Kingdom
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
- * E-mail:
| | - Bronwen Herbert
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Garvin Sooranna
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Nishel M. Shah
- Chelsea and Westminster Hospital, London, United Kingdom
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Ananya Das
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Suren R. Sooranna
- Chelsea and Westminster Hospital, London, United Kingdom
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Mark R. Johnson
- Chelsea and Westminster Hospital, London, United Kingdom
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
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Nadeem L, Balendran R, Dorogin A, Mesiano S, Shynlova O, Lye SJ. Pro-inflammatory signals induce 20α-HSD expression in myometrial cells: A key mechanism for local progesterone withdrawal. J Cell Mol Med 2021; 25:6773-6785. [PMID: 34114342 PMCID: PMC8278114 DOI: 10.1111/jcmm.16681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 01/03/2023] Open
Abstract
Metabolism of progesterone (P4) by the enzyme 20α hydroxysteroid dehydrogenase (20α‐HSD) in myometrial cells is postulated to be a mechanism for P4 withdrawal, which occurs concomitant to uterine inflammation (physiologic or infection‐induced) and associated activation of transcription factors: NF‐кB and AP‐1, common to term and preterm labour. We found that 20α‐HSD protein is significantly increased in human myometrium during term labour, and in mouse uterus during term and preterm labour. Treatment of human myometrial cells with the pro‐inflammatory mediators, lipopolysaccharide (LPS, mimicking infection) and 12‐O‐tetradecanoylphorbol‐13‐acetate (TPA, mimicking inflammation), induced 20α‐HSD gene expression and increased 20α‐HSD protein abundance. LPS treatment decreased P4 release into the culture medium and resulted in up‐regulation of GJA1 in the hTERT‐HM cells. The NF‐кB /AP‐1 transcription factors mediated effects of LPS and TPA on 20α‐HSD gene transcription. Both pro‐inflammatory stimuli induced 20α‐HSD promoter activity in LPS/TPA‐treated cells which was significantly attenuated by inhibition of NF‐кB (JSH: 20 µM) or AP‐1 signalling (T5224: 10 µM). Deletion of NF‐кB consensus sites abrogated LPS‐mediated promoter induction, while removal of AP‐1 sites reversed the TPA‐mediated induction of 20α‐HSD promoter. We conclude that inflammatory stimuli (physiologic or pathologic) that activate NF‐кB or AP‐1 induce 20α‐HSD transcription and subsequent local P4 withdrawal resulting in up‐regulation of GJA1 and activation of myometrium that precedes labour.
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Affiliation(s)
- Lubna Nadeem
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Rathesh Balendran
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Anna Dorogin
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - Sam Mesiano
- Department of Reproductive Biology, Case Western Reserve University, Cleveland, OH, USA
| | - Oksana Shynlova
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada
| | - Stephen J Lye
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada
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11
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Gómez-Chávez F, Correa D, Navarrete-Meneses P, Cancino-Diaz JC, Cancino-Diaz ME, Rodríguez-Martínez S. NF-κB and Its Regulators During Pregnancy. Front Immunol 2021; 12:679106. [PMID: 34025678 PMCID: PMC8131829 DOI: 10.3389/fimmu.2021.679106] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/23/2021] [Indexed: 12/25/2022] Open
Abstract
The transcriptional factor NF-κB is a nuclear factor involved in both physiological and pathological processes. This factor can control the transcription of more than 400 genes, including cytokines, chemokines, and their modulators, immune and non-immune receptors, proteins involved in antigen presentation and cell adhesion, acute phase and stress response proteins, regulators of apoptosis, growth factors, other transcription factors and their regulators, as well as different enzymes; all these molecules control several biological processes. NF-κB is a tightly regulated molecule that has also been related to apoptosis, cell proliferation, inflammation, and the control of innate and adaptive immune responses during onset of labor, in which it has a crucial role; thus, early activation of this factor may have an adverse effect, by inducing premature termination of pregnancy, with bad outcomes for the mother and the fetus, including product loss. Reviews compiling the different activities of NF-κB have been reported. However, an update regarding NF-κB regulation during pregnancy is lacking. In this work, we aimed to describe the state of the art around NF-κB activity, its regulatory role in pregnancy, and the effect of its dysregulation due to invasion by pathogens like Trichomonas vaginalis and Toxoplasma gondii as examples.
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Affiliation(s)
- Fernando Gómez-Chávez
- Secretaría de Salud, Cátedras CONACyT-Instituto Nacional de Pediatría, Mexico City, Mexico
- Secretaría de Salud, Laboratorio de Inmunología Experimental, Instituto Nacional de Pediatría, Mexico City, Mexico
- Departamento de Formación Básica Disciplinaria, Escuela Nacional de Medicina y Homeopatía-Instituto Politécnico Nacional, Mexico City, Mexico
| | - Dolores Correa
- Dirección de Investigación, Universidad Anáhuac, Huixquilucan, Mexico
| | - Pilar Navarrete-Meneses
- Laboratorio de Genética y Cáncer, Instituto Nacional de Pediatría, Secretaría de Salud Mexico City, Mexico City, Mexico
| | - Juan Carlos Cancino-Diaz
- Laboratorio de Inmunomicrobiología, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas-Instituto Politécnico Nacional, Mexico City, Mexico
| | - Mario Eugenio Cancino-Diaz
- Laboratorio de Inmunidad Innata, Departamento de Inmunología, ENCB-Instituto Politécnico Nacional, Mexico City, Mexico
| | - Sandra Rodríguez-Martínez
- Laboratorio de Inmunidad Innata, Departamento de Inmunología, ENCB-Instituto Politécnico Nacional, Mexico City, Mexico
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12
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Overexpression of miR-210-3p Impairs Extravillous Trophoblast Functions Associated with Uterine Spiral Artery Remodeling. Int J Mol Sci 2021; 22:ijms22083961. [PMID: 33921262 PMCID: PMC8069107 DOI: 10.3390/ijms22083961] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 12/18/2022] Open
Abstract
Hsa-miR-210-3p has been reported to be upregulated in preeclampsia (PE); however, the functions of miR-210-3p in placental development are not fully understood, and, consequently, miR-210-3p’s role in the pathogenesis of PE is still under investigation. In this study, we found that overexpression of miR-210-3p reduced trophoblast migration and invasion, extravillous trophoblast (EVT) outgrowth in first trimester explants, expression of endovascular trophoblast (enEVT) markers and the ability of trophoblast to form endothelial-like networks. In addition, miR-210-3p overexpression significantly downregulated the mRNA levels of interleukin-1B and -8, as well as CXC motif ligand 1. These cytokines have been suggested to play a role in EVT invasion and the recruitment of immune cells to the spiral artery remodeling sites. We also showed that caudal-related homeobox transcription factor 2 (CDX2) is targeted by miR-210-3p and that CDX2 downregulation mimicked the observed effects of miR-210-3p upregulation in trophoblasts. These findings suggest that miR-210-3p may play a role in regulating events associated with enEVT functions and its overexpression could impair spiral artery remodeling, thereby contributing to PE.
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13
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Lyu LK, Li JS, Wang XJ, Yao YJ, Li JF, Li Y, Wen HS, Qi X. Arg-Vasotocin Directly Activates Isotocin Receptors and Induces COX2 Expression in Ovoviviparous Guppies. Front Endocrinol (Lausanne) 2021; 12:617580. [PMID: 33967951 PMCID: PMC8104081 DOI: 10.3389/fendo.2021.617580] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
Oxytocin (OT) is a crucial regulator of reproductive behaviors, including parturition in mammals. Arg-vasopressin (AVP) is a nonapeptide homologous to Arg-vasotocin (AVT) in teleosts that has comparable affinity for the OT receptor. In the present study, ovoviviparous guppies (Poecilia reticulata) were used to study the effect of AVT on delivery mediated by the activation of prostaglandin (PG) biosynthesis via isotocin (IT) receptors (ITRs). One copy each of it and avt and two copies of itrs were identified in guppies. The results of the affinity assay showed that various concentrations of AVT and IT (10-6, 10-7, and 10-8 mol/L) significantly activated itr1 (P < 0.05). In vitro experiments revealed significant upregulation (P < 0.05) of cyclooxygenase 2 (cox2), which is the rate-limiting enzyme involved in PG biosynthesis, and itr1 by AVT and IT. Furthermore, dual in situ hybridization detected positive signals for itr1 and cox2 at the same site, implying that ITR1 may regulate cox2 gene expression. Measurement of prostaglandin F2a (PGF2a) concentrations showed that AVT induced PGF2a synthesis (P < 0.05) and that the effect of IT was not significant. Finally, intraperitoneal administration of PGF2a significantly induced premature parturition of guppies. This study is the first to identify and characterize AVT and ITRs in guppies. The findings suggest that AVT promotes PG biosynthesis via ITR and that PGF2a induces delivery behavior in ovoviviparous guppies.
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14
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Neuromedin B mediates IL-6 and COX-2 expression through NF-κB/P65 and AP-1/C-JUN activation in human primary myometrial cells. Biosci Rep 2020; 39:BSR20192139. [PMID: 31527064 PMCID: PMC6822491 DOI: 10.1042/bsr20192139] [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: 06/22/2019] [Revised: 09/02/2019] [Accepted: 09/10/2019] [Indexed: 11/21/2022] Open
Abstract
Neuromedin B (NMB) and its receptor regulate labor onset by mediating inflammatory factors; however the underlying mechanisms remain poorly understood. The present study is aimed to investigate the mechanisms of NMB-induced cyclo-oxygenase 2 (COX-2) expression and interleukin (IL)-6 generation in human primary myometrial cells. The results indicated that NMB could increase phosphorylation of nuclear factor κB (NF-κB) transcription factor p65 (p65) and Jun proto-oncogene, activator protein 1 (AP-1) transcription factor subunit (c-Jun), and in turn, markedly up-regulated the expression levels of COX-2 and IL-6. This up-regulation was significantly attenuated by knockdown of p65 or c-Jun, and enhanced by overexpression of p65 or c-Jun. Furthermore, we identified a potential interaction between p65 and c-Jun following NMB stimulation. In addition, a significant positive correlation was observed between the amount of phosphorylated p65 and the levels of COX-2 and IL-6, and between the amount of phosphorylated c-Jun and COX-2 and IL-6 levels. These data suggested that NMB-induced COX-2 and IL-6 expression were mediated via p65 and c-Jun activation.
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15
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Rasheed ZBM, Lee YS, Kim SH, Rai RK, Ruano CSM, Anucha E, Sullivan MHF, MacIntyre DA, Bennett PR, Sykes L. Differential Response of Gestational Tissues to TLR3 Viral Priming Prior to Exposure to Bacterial TLR2 and TLR2/6 Agonists. Front Immunol 2020; 11:1899. [PMID: 32983111 PMCID: PMC7477080 DOI: 10.3389/fimmu.2020.01899] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 07/15/2020] [Indexed: 12/19/2022] Open
Abstract
Background: Infection/inflammation is an important causal factor in spontaneous preterm birth (sPTB). Most mechanistic studies have concentrated on the role of bacteria, with limited focus on the role of viruses in sPTB. Murine studies support a potential multi-pathogen aetiology in which a double or sequential hit of both viral and bacterial pathogens leads to a higher risk preterm labour. This study aimed to determine the effect of viral priming on bacterial induced inflammation in human in vitro models of ascending and haematogenous infection. Methods: Vaginal epithelial cells, and primary amnion epithelial cells and myocytes were used to represent cell targets of ascending infection while interactions between peripheral blood mononuclear cells (PBMCs) and placental explants were used to model systemic infection. To model the effect of viral priming upon the subsequent response to bacterial stimuli, each cell type was stimulated first with a TLR3 viral agonist, and then with either a TLR2 or TLR2/6 agonist, and responses compared to those of each agonist alone. Immunoblotting was used to detect cellular NF-κB, AP-1, and IRF-3 activation. Cellular TLR3, TLR2, and TLR6 mRNA was quantified by RT-qPCR. Immunoassays were used to measure supernatant cytokine, chemokine and PGE2 concentrations. Results: TLR3 (“viral”) priming prior to TLR2/6 agonist (“bacterial”) exposure augmented the pro-inflammatory, pro-labour response in VECs, AECs, myocytes and PBMCs when compared to the effects of agonists alone. In contrast, enhanced anti-inflammatory cytokine production (IL-10) was observed in placental explants. Culturing placental explants in conditioned media derived from PBMCs primed with a TLR3 agonist enhanced TLR2/6 agonist stimulated production of IL-6 and IL-8, suggesting a differential response by the placenta to systemic inflammation compared to direct infection as a result of haematogenous spread. TLR3 agonism generally caused increased mRNA expression of TLR3 and TLR2 but not TLR6. Conclusion: This study provides human in vitro evidence that viral infection may increase the susceptibility of women to bacterial-induced sPTB. Improved understanding of interactions between viral and bacterial components of the maternal microbiome and host immune response may offer new therapeutic options, such as antivirals for the prevention of PTB.
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Affiliation(s)
- Zahirrah B M Rasheed
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.,Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Yun S Lee
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.,March of Dimes European Preterm Birth Research Centre, Imperial College London, London, United Kingdom
| | - Sung H Kim
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.,March of Dimes European Preterm Birth Research Centre, Imperial College London, London, United Kingdom
| | - Ranjit K Rai
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Camino S M Ruano
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.,INSERM U1016 Institut Cochin, Paris, France
| | - Eberechi Anucha
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - Mark H F Sullivan
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - David A MacIntyre
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.,March of Dimes European Preterm Birth Research Centre, Imperial College London, London, United Kingdom
| | - Phillip R Bennett
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.,March of Dimes European Preterm Birth Research Centre, Imperial College London, London, United Kingdom
| | - Lynne Sykes
- Imperial College Parturition Research Group, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.,March of Dimes European Preterm Birth Research Centre, Imperial College London, London, United Kingdom
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16
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Chen J, Shi Y, Huang J, Luo J, Zhang W. Neuromedin B receptor mediates neuromedin B-induced COX-2 and IL-6 expression in human primary myometrial cells. J Investig Med 2020; 68:1171-1178. [PMID: 32699178 PMCID: PMC7418630 DOI: 10.1136/jim-2020-001412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/12/2020] [Indexed: 12/02/2022]
Abstract
The precise mechanisms that lead to parturition remain unclear. In our initial complementary DNA (cDNA) microarray experiment, we found that the neuromedin B receptor (NMBR) was differentially expressed in the human myometrium during spontaneous or oxytocin-induced labor. We have previously shown that neuromedin B (NMB) could induce interleukin 6 (IL-6) and type 2 cyclo-oxygenase enzyme (COX-2) expression in the primary human myometrial cells via nuclear factor kappa B (NF-κB) transcription factor p65 (p65) and Jun proto-oncogene, activator protein 1 (AP-1) transcription factor subunit (c-Jun). This study is aimed to investigate whether NMBR is required for NMB-induced effect. Primary myometrial cell culture was established to provide a suitable model to investigate the mechanism of NMB in labor initiation. Immunochemical staining was conducted to validate the NMBR expression in primary myometrial cells. The mRNA and protein expression of NMBR, p65, c-Jun, COX-2 and IL-6 were assessed by Quantitative Real Time PCR (RT-qPCR) and western blotting. Lentiviruses with shRNAs targeting NMBR or containing cDNA sequence of NMBR were transfected to primary myometrial cells to knockdown or overexpress NMBR. Cell death was determined by annexin V and propidium iodide staining and analyzed by flow cytometry. The upregulation of COX-2 and IL-6 and phosphorylation of p65 and c-Jun were significantly attenuated by knockdown of NMBR and enhanced by overexpressed NMBR following NMB treatment, with no significant change in total p65 and c-Jun. In summary, this study showed that NMBR-mediated NMB-induced NF-κB and AP-1 activation, which in turn, induce expression of IL-6 and COX-2 in primary myometrial cells.
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Affiliation(s)
- Jingfei Chen
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yun Shi
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jingrui Huang
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiefeng Luo
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Weishe Zhang
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha, Hunan, China .,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, Hunan, China
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17
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Cunningham SJ, Feng L, Allen TK, Reddy TE. Functional Genomics of Healthy and Pathological Fetal Membranes. Front Physiol 2020; 11:687. [PMID: 32655414 PMCID: PMC7325962 DOI: 10.3389/fphys.2020.00687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/27/2020] [Indexed: 11/23/2022] Open
Abstract
Premature preterm rupture of membranes (PPROM), rupture of fetal membranes before 37 weeks of gestation, is the leading identifiable cause of spontaneous preterm births. Often there is no obvious cause that is identified in a patient who presents with PPROM. Identifying the upstream molecular events that lead to fetal membrane weakening presents potentially actionable mechanisms which could lead to the identification of at-risk patients and to the development of new therapeutic interventions. Functional genomic studies have transformed understanding of the role of gene regulation in diverse cells and tissues involved health and disease. Here, we review the results of those studies in the context of fetal membranes. We will highlight relevant results from major coordinated functional genomics efforts and from targeted studies focused on individual cell or tissue models. Studies comparing gene expression and DNA methylation between healthy and pathological fetal membranes have found differential regulation between labor and quiescent tissue as well as in preterm births, preeclampsia, and recurrent pregnancy loss. Whole genome and exome sequencing studies have identified common and rare fetal variants associated with preterm births. However, few fetal membrane tissue studies have modeled the response to stimuli relevant to pregnancy. Fetal membranes are readily adaptable to cell culture and relevant cellular phenotypes are readily observable. For these reasons, this is now an unrealized opportunity for genomic studies isolating the effect of cell signaling cascades and mapping the fetal membrane responses that lead to PPROM and other pregnancy complications.
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Affiliation(s)
- Sarah J Cunningham
- Department of Biostatistics and Bioinformatics, Duke University, Durham, NC, United States.,University Program in Genetics and Genomics, Duke University, Durham, NC, United States.,Center for Genomic and Computational Biology, Duke University, Durham, NC, United States.,Center for Advanced Genomic Technologies, Duke University, Durham, NC, United States
| | - Liping Feng
- Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, NC, United States
| | - Terrence K Allen
- Department of Anesthesiology, Duke University Hospital, Durham, NC, United States
| | - Timothy E Reddy
- Department of Biostatistics and Bioinformatics, Duke University, Durham, NC, United States.,University Program in Genetics and Genomics, Duke University, Durham, NC, United States.,Center for Genomic and Computational Biology, Duke University, Durham, NC, United States.,Center for Advanced Genomic Technologies, Duke University, Durham, NC, United States
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18
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Gómez-Chávez F, López-Portales ÓH, Baeza-Martínez DA, Cancino-Díaz JC, Murrieta-Coxca JM, Cancino-Díaz ME, Pérez-Tapia SM, Rodríguez-Martínez S. IκBNS and IL-6 expression is differentially established in the uterus of pregnant healthy and infected mice. Heliyon 2020; 6:e04122. [PMID: 32577554 PMCID: PMC7301180 DOI: 10.1016/j.heliyon.2020.e04122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/28/2020] [Accepted: 05/29/2020] [Indexed: 01/20/2023] Open
Abstract
During pregnancy, NF-κB plays an important role for embryo implantation and the onset of labor. Regulated IL-6 production, under transcriptional control of NF-κB, is essential for a successful pregnancy outcome and the atypical regulator IκBNS is involved in this process. Previously, we showed that IκBNS negatively regulates IL-6 in uterine tissues during mouse estrous cycle. In this work, we analyzed if IκBNS and IL-6 expression in pregnant mice under physiological or L. monocytogenes-infected conditions would remain as observed in estrous cycle. In the healthy pregnancy IL-6 was highly expressed during implantation/placentation and labor stages but decreased during fetal development and post-partum stages. In contrast, in mice infected before pregnancy, IL-6 expression was not increased in the implantation stage, and its regulator IκBNS increased more in the infected condition rather than in the healthy pregnancy. IκBNS expression was reduced in post-implantation infection, allowing for IL-6 overexpression. The IκBNS-unrelated cytokine IL-36γ, used as inflammatory cytokine marker, was severely increased in the infected uterine tissues. When we analyzed the effect of infection over the fetuses, we found that pre-implantation infection caused the resorption (rejection) of some products, while the post-implantation infection restricted the intrauterine growth of fetuses. The results suggest that in the uterine tissue of pregnant mice the regulatory effect of IκBNS over IL-6 is more evident in an infection status rather than in a healthy condition.
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Affiliation(s)
- Fernando Gómez-Chávez
- Laboratorio de Inmunología Experimental, Instituto Nacional de Pediatría, Secretaría de Salud, Mexico City, Mexico.,Cátedras CONACyT-Instituto Nacional de Pediatría, Secretaría de Salud, Mexico.,Departmento de Formación Básica Disciplinaria. Escuela Nacional de Medicina y Homeopatía (ENMyH) - IPN, Mexico City, Mexico
| | - Óscar Humberto López-Portales
- Laboratorio de Inmunología Innata, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas - Instituto Politécnico Nacional (ENCB-IPN), Mexico City, Mexico
| | - Damariz Adriana Baeza-Martínez
- Laboratorio de Inmunología Innata, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas - Instituto Politécnico Nacional (ENCB-IPN), Mexico City, Mexico.,Departamento de Enfermería. Facultad de Estudios Superiores - Iztacala, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - José Martín Murrieta-Coxca
- Laboratorio de Inmunología Innata, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas - Instituto Politécnico Nacional (ENCB-IPN), Mexico City, Mexico
| | - Mario Eugenio Cancino-Díaz
- Laboratorio de Inmunología Innata, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas - Instituto Politécnico Nacional (ENCB-IPN), Mexico City, Mexico
| | - Sonia Mayra Pérez-Tapia
- Laboratorio Nacional para Servicios Especializados de Investigación, Desarrollo e Innovación (I+D+i) para Farmoquímicos y Biotecnológicos (LANSEIDI-FarBiotec-CONACyT)-ENCB-IPN, Mexico City, Mexico
| | - Sandra Rodríguez-Martínez
- Laboratorio de Inmunología Innata, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas - Instituto Politécnico Nacional (ENCB-IPN), Mexico City, Mexico
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19
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Ku YS, Ng MS, Cheng SS, Lo AWY, Xiao Z, Shin TS, Chung G, Lam HM. Understanding the Composition, Biosynthesis, Accumulation and Transport of Flavonoids in Crops for the Promotion of Crops as Healthy Sources of Flavonoids for Human Consumption. Nutrients 2020; 12:nu12061717. [PMID: 32521660 PMCID: PMC7352743 DOI: 10.3390/nu12061717] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/02/2020] [Accepted: 06/04/2020] [Indexed: 12/11/2022] Open
Abstract
Flavonoids are a class of polyphenolic compounds that naturally occur in plants. Sub-groups of flavonoids include flavone, flavonol, flavanone, flavanonol, anthocyanidin, flavanol and isoflavone. The various modifications on flavonoid molecules further increase the diversity of flavonoids. Certain crops are famous for being enriched in specific flavonoids. For example, anthocyanins, which give rise to a purplish color, are the characteristic compounds in berries; flavanols are enriched in teas; and isoflavones are uniquely found in several legumes. It is widely accepted that the antioxidative properties of flavonoids are beneficial for human health. In this review, we summarize the classification of the different sub-groups of flavonoids based on their molecular structures. The health benefits of flavonoids are addressed from the perspective of their molecular structures. The flavonoid biosynthesis pathways are compared among different crops to highlight the mechanisms that lead to the differential accumulation of different sub-groups of flavonoids. In addition, the mechanisms and genes involved in the transport and accumulation of flavonoids in crops are discussed. We hope the understanding of flavonoid accumulation in crops will guide the proper balance in their consumption to improve human health.
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Affiliation(s)
- Yee-Shan Ku
- Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (Y.-S.K.); (M.-S.N.); (S.-S.C.); (A.W.-Y.L.); (Z.X.)
| | - Ming-Sin Ng
- Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (Y.-S.K.); (M.-S.N.); (S.-S.C.); (A.W.-Y.L.); (Z.X.)
| | - Sau-Shan Cheng
- Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (Y.-S.K.); (M.-S.N.); (S.-S.C.); (A.W.-Y.L.); (Z.X.)
| | - Annie Wing-Yi Lo
- Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (Y.-S.K.); (M.-S.N.); (S.-S.C.); (A.W.-Y.L.); (Z.X.)
| | - Zhixia Xiao
- Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (Y.-S.K.); (M.-S.N.); (S.-S.C.); (A.W.-Y.L.); (Z.X.)
| | - Tai-Sun Shin
- Division of Food and Nutrition, Chonnam National University, Gwangju 61186, Korea;
| | - Gyuhwa Chung
- Department of Biotechnology, Chonnam National University, Yeosu 59626, Korea
- Correspondence: (G.C.); (H.-M.L.); Tel.: +82-61-659-7302 (G.C.); +852-3943-6336 (H.-M.L.)
| | - Hon-Ming Lam
- Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China; (Y.-S.K.); (M.-S.N.); (S.-S.C.); (A.W.-Y.L.); (Z.X.)
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen 518000, China
- Correspondence: (G.C.); (H.-M.L.); Tel.: +82-61-659-7302 (G.C.); +852-3943-6336 (H.-M.L.)
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20
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Xu L, Zhang Y, Chen J, Xu Y. Thrombospondin-1: A Key Protein That Induces Fibrosis in Diabetic Complications. J Diabetes Res 2020; 2020:8043135. [PMID: 32626782 PMCID: PMC7306092 DOI: 10.1155/2020/8043135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 05/12/2020] [Accepted: 05/19/2020] [Indexed: 12/23/2022] Open
Abstract
Fibrosis accompanies most common pathophysiological features of diabetes complications in different organs. It is characterized by an excessive accumulation of extracellular matrix (ECM) components, the response to which contributes to inevitable organ injury. The extracellular protein thrombospondin-1 (TSP-1), a kind of extracellular glycoprotein, is upregulated by the increased activity of some transcription factors and results in fibrosis by activating multiple pathways in diabetes. The results of studies from our team and other colleagues indicate that TSP-1 is associated with the pathological process leading to diabetic complications and is considered to be the most important factor in fibrosis. This review summarizes the molecular mechanism of increased TSP-1 induced by hyperglycemia and the role of TSP-1 in fibrosis during the development of diabetes complications.
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Affiliation(s)
- Linhao Xu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, 310006 Zhejiang, China
- School of Basic Medical Sciences & Forensic Medicine, Hangzhou Medical College, Hangzhou, 310053 Zhejiang, China
- Translational Medicine Research Center, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006 Zhejiang, China
| | - Yong Zhang
- Department of Urology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009 Zhejiang, China
| | - Jian Chen
- School of Basic Medical Sciences & Forensic Medicine, Hangzhou Medical College, Hangzhou, 310053 Zhejiang, China
| | - Yizhou Xu
- Department of Cardiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, 310006 Zhejiang, China
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21
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Sakowicz A. The role of NFκB in the three stages of pregnancy - implantation, maintenance, and labour: a review article. BJOG 2018; 125:1379-1387. [PMID: 29460466 DOI: 10.1111/1471-0528.15172] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/29/2018] [Indexed: 12/14/2022]
Abstract
The transcription factor nuclear factor kappa B (NFκB) controls the expression of over 400 genes, some of which are associated with reproductive events. During implantation, immune cells accumulate in the maternal-fetal interface; they secrete inflammatory mediators under the control of NFĸB, the level of which also rises. NFĸB is then downregulated to maintain gestation, but its level rises again before birth to manage prostaglandin, cytokine, and chemokine synthesis, and to stimulate uterine contraction. This review summarises the current state of knowledge about NFκB and its role in the molecular regulation of processes related to pregnancy development. TWEETABLE ABSTRACT This review examines the current state of knowledge about role of NFκB in the development of pregnancy.
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Affiliation(s)
- A Sakowicz
- Department of Medical Biotechnology, Medical University of Lodz, Lodz, Poland
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22
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Bukowski R, Sadovsky Y, Goodarzi H, Zhang H, Biggio JR, Varner M, Parry S, Xiao F, Esplin SM, Andrews W, Saade GR, Ilekis JV, Reddy UM, Baldwin DA. Onset of human preterm and term birth is related to unique inflammatory transcriptome profiles at the maternal fetal interface. PeerJ 2017; 5:e3685. [PMID: 28879060 PMCID: PMC5582610 DOI: 10.7717/peerj.3685] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 07/22/2017] [Indexed: 12/18/2022] Open
Abstract
Background Preterm birth is a main determinant of neonatal mortality and morbidity and a major contributor to the overall mortality and burden of disease. However, research of the preterm birth is hindered by the imprecise definition of the clinical phenotype and complexity of the molecular phenotype due to multiple pregnancy tissue types and molecular processes that may contribute to the preterm birth. Here we comprehensively evaluate the mRNA transcriptome that characterizes preterm and term labor in tissues comprising the pregnancy using precisely phenotyped samples. The four complementary phenotypes together provide comprehensive insight into preterm and term parturition. Methods Samples of maternal blood, chorion, amnion, placenta, decidua, fetal blood, and myometrium from the uterine fundus and lower segment (n = 183) were obtained during cesarean delivery from women with four complementary phenotypes: delivering preterm with (PL) and without labor (PNL), term with (TL) and without labor (TNL). Enrolled were 35 pregnant women with four precisely and prospectively defined phenotypes: PL (n = 8), PNL (n = 10), TL (n = 7) and TNL (n = 10). Gene expression data were analyzed using shrunken centroid analysis to identify a minimal set of genes that uniquely characterizes each of the four phenotypes. Expression profiles of 73 genes and non-coding RNA sequences uniquely identified each of the four phenotypes. The shrunken centroid analysis and 10 times 10-fold cross-validation was also used to minimize false positive finings and overfitting. Identified were the pathways and molecular processes associated with and the cis-regulatory elements in gene’s 5′ promoter or 3′-UTR regions of the set of genes which expression uniquely characterized the four phenotypes. Results The largest differences in gene expression among the four groups occurred at maternal fetal interface in decidua, chorion and amnion. The gene expression profiles showed suppression of chemokines expression in TNL, withdrawal of this suppression in TL, activation of multiple pathways of inflammation in PL, and an immune rejection profile in PNL. The genes constituting expression signatures showed over-representation of three putative regulatory elements in their 5′and 3′ UTR regions. Conclusions The results suggest that pregnancy is maintained by downregulation of chemokines at the maternal-fetal interface. Withdrawal of this downregulation results in the term birth and its overriding by the activation of multiple pathways of the immune system in the preterm birth. Complications of the pregnancy associated with impairment of placental function, which necessitated premature delivery of the fetus in the absence of labor, show gene expression patterns associated with immune rejection.
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Affiliation(s)
- Radek Bukowski
- Dell Medical School, Department of Women's Health, University of Texas at Austin, Austin, TX, United States of America
| | - Yoel Sadovsky
- Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Hani Goodarzi
- Department of Biophysics & Biochemistry, University of California, San Francisco, San Francisco, CA, United States of America
| | - Heping Zhang
- School of Public Health, Department of Biostatistics, Yale University, New Haven, CT, United States of America
| | - Joseph R Biggio
- School of Medicine, Department of Obstetrics and Gynecology, University of Alabama - Birmingham, Birmingham, AL, United States of America
| | - Michael Varner
- School of Medicine, Intermountain Healthcare, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, United States of America
| | - Samuel Parry
- School of Medicine, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA, United States of America
| | - Feifei Xiao
- Arnold School of Public Health, Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC, United States of America
| | - Sean M Esplin
- School of Medicine, Intermountain Healthcare, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, United States of America
| | - William Andrews
- School of Medicine, Department of Obstetrics and Gynecology, University of Alabama - Birmingham, Birmingham, AL, United States of America
| | - George R Saade
- Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, TX, United States of America
| | - John V Ilekis
- Pregnancy and Perinatology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, United States of America
| | - Uma M Reddy
- Pregnancy and Perinatology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, United States of America
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23
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Mellows B, Mitchell R, Antonioli M, Kretz O, Chambers D, Zeuner MT, Denecke B, Musante L, Ramachandra DL, Debacq-Chainiaux F, Holthofer H, Joch B, Ray S, Widera D, David AL, Huber TB, Dengjel J, De Coppi P, Patel K. Protein and Molecular Characterization of a Clinically Compliant Amniotic Fluid Stem Cell-Derived Extracellular Vesicle Fraction Capable of Accelerating Muscle Regeneration Through Enhancement of Angiogenesis. Stem Cells Dev 2017; 26:1316-1333. [PMID: 28679310 DOI: 10.1089/scd.2017.0089] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The secretome of human amniotic fluid stem cells (AFSCs) has great potential as a therapeutic agent in regenerative medicine. However, it must be produced in a clinically compliant manner before it can be used in humans. In this study, we developed a means of producing a biologically active secretome from AFSCs that is free of all exogenous molecules. We demonstrate that the full secretome is capable of promoting stem cell proliferation, migration, and protection of cells against senescence. Furthermore, it has significant anti-inflammatory properties. Most importantly, we show that it promotes tissue regeneration in a model of muscle damage. We then demonstrate that the secretome contains extracellular vesicles (EVs) that harbor much, but not all, of the biological activity of the whole secretome. Proteomic characterization of the EV and free secretome fraction shows the presence of numerous molecules specific to each fraction that could be key regulators of tissue regeneration. Intriguingly, we show that the EVs only contain miRNA and not mRNA. This suggests that tissue regeneration in the host is mediated by the action of EVs modifying existing, rather than imposing new, signaling pathways. The EVs harbor significant anti-inflammatory activity as well as promote angiogenesis, the latter may be the mechanistic explanation for their ability to promote muscle regeneration after cardiotoxin injury.
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Affiliation(s)
- Ben Mellows
- 1 School of Biological Sciences, University of Reading , Reading, United Kingdom
| | - Robert Mitchell
- 1 School of Biological Sciences, University of Reading , Reading, United Kingdom
| | - Manuela Antonioli
- 2 Department of Epidemiology and Preclinical Research, National Institute for Infectious Diseases IRCCS 'Lazzaro Spallanzani' , Rome, Italy
| | - Oliver Kretz
- 3 Department of Medicine III, Faculty of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg, Germany .,4 Renal Division, Faculty of Medicine, Medical Centre, University of Freiburg , Freiburg, Germany .,5 Department of Medicine IV, Faculty of Medicine, University of Freiburg , Freiburg, Germany
| | - David Chambers
- 6 Wolfson Centre for Age-Related Diseases, King's College , London, United Kingdom
| | | | - Bernd Denecke
- 8 Interdisciplinary Centre for Clinical Research Aachen, RWTH Aachen University , Aachen, Germany
| | - Luca Musante
- 9 Centre for Bioanalytical Sciences (CBAS), Dublin City University , Dublin, Ireland
| | - Durrgah L Ramachandra
- 10 Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health , London, United Kingdom
| | | | - Harry Holthofer
- 9 Centre for Bioanalytical Sciences (CBAS), Dublin City University , Dublin, Ireland .,12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany
| | - Barbara Joch
- 5 Department of Medicine IV, Faculty of Medicine, University of Freiburg , Freiburg, Germany
| | - Steve Ray
- 13 Micregen, Biohub, Cheshire, United Kingdom
| | - Darius Widera
- 7 School of Pharmacy, University of Reading , Reading, United Kingdom
| | - Anna L David
- 14 Institute for Women's Health, University College London , London, United Kingdom .,15 NIHR University College London Hospitals Biomedical Research Centre , London, United Kingdom
| | - Tobias B Huber
- 3 Department of Medicine III, Faculty of Medicine, University Medical Center Hamburg-Eppendorf , Hamburg, Germany .,4 Renal Division, Faculty of Medicine, Medical Centre, University of Freiburg , Freiburg, Germany .,12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany .,16 BIOSS Centre for Biological Signalling Studies and Centre for Systems Biology (ZBSA), Albert-Ludwigs University , Freiburg, Germany
| | - Joern Dengjel
- 12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany .,17 Department of Biology, University of Fribourg , Fribourg, Switzerland
| | - Paolo De Coppi
- 10 Stem Cells and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health , London, United Kingdom
| | - Ketan Patel
- 1 School of Biological Sciences, University of Reading , Reading, United Kingdom .,12 FRIAS Freiburg Institute for Advanced Studies, University of Freiburg , Freiburg, Germany
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24
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Kim SH, Bennett PR, Terzidou V. Advances in the role of oxytocin receptors in human parturition. Mol Cell Endocrinol 2017; 449:56-63. [PMID: 28119132 DOI: 10.1016/j.mce.2017.01.034] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/16/2017] [Accepted: 01/21/2017] [Indexed: 12/26/2022]
Abstract
Oxytocin (OT) is a neurohypophysial hormone which has been found to play a central role in the regulation of human parturition. The most established role of oxytocin/oxytocin receptor (OT/OTR) system in human parturition is the initiation of uterine contractions, however, recent evidence have demonstrated that it may have a more complex role including initiation of inflammation, regulation of miRNA expression, as well as mediation of other non-classical oxytocin actions via receptor crosstalk with other G protein-coupled receptors (GPCRs). In this review we highlight both established and newly emerging roles of OT/OTR system in human parturition and discuss the expanding potential for OTRs as pharmacological targets in the management of preterm labour.
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Affiliation(s)
- Sung Hye Kim
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK
| | - Phillip R Bennett
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK
| | - Vasso Terzidou
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK; Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, 369 Fulham Road, London SW10 9NH, UK.
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25
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Kim SH, Pohl O, Chollet A, Gotteland JP, Fairhurst ADJ, Bennett PR, Terzidou V. Differential Effects of Oxytocin Receptor Antagonists, Atosiban and Nolasiban, on Oxytocin Receptor-Mediated Signaling in Human Amnion and Myometrium. Mol Pharmacol 2017; 91:403-415. [PMID: 28188254 PMCID: PMC5363712 DOI: 10.1124/mol.116.106013] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 01/30/2017] [Indexed: 12/14/2022] Open
Abstract
One of the most established roles of oxytocin (OT) is in inducing uterine contractions and labor. Apart from inducing contractions, our recent studies showed that OT can also activate proinflammatory pathways in both human myometrial and amnion cells, which suggests that the proinflammatory role of OT should be taken into account when developing tocolytics targeting the OT/oxytocin receptor (OTR) system. The OTR antagonist, atosiban, is currently used therapeutically for the treatment of preterm labor. We previously showed that atosiban fails to inhibit the proinflammatory effects of OT in human amnion; atosiban alone activates nuclear factor-κB (NF-κB) and mitogen activated protein kinases, thus upregulating downstream prolabor genes. In contrast with our findings with atosiban, the presence of the orally active OTR antagonist, nolasiban, reduced the effect of OT on NF-κB and p38 kinase activation in both myometrial and amnion cells. Consistent with the activation of these inflammatory mediators, OT led to increases in the expression of cyclooxygenase-2 and phosphorylated cytosolic phospholipase A2, which was reflected in prostaglandin E2 synthesis. Inhibition of NF-κB activation by nolasiban also translated to suppression of downstream prolabor gene expression, such as cyclooxygenase-2, C-C motif chemokine ligand 2, interleukin-6, and interleukin-8. We also demonstrated that nolasiban treatment alone has no significant stimulatory effect on both the myometrium and amnion. In conclusion, our findings indicate that nolasiban possesses promising potential as a novel tocolytic agent for both acute and maintenance therapy, as it inhibits both myometrial contractions and the proinflammatory effects of OT without the biased agonist effects.
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Affiliation(s)
- Sung Hye Kim
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus (S.H.K., A.D.J.F., P.R.B., V.T.) and Chelsea and Westminster Hospital (V.T.), Imperial College London, London, United Kingdom; and ObsEva SA, Geneva, Switzerland (O.P., A.C., J.-P.G.)
| | - Oliver Pohl
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus (S.H.K., A.D.J.F., P.R.B., V.T.) and Chelsea and Westminster Hospital (V.T.), Imperial College London, London, United Kingdom; and ObsEva SA, Geneva, Switzerland (O.P., A.C., J.-P.G.)
| | - Andre Chollet
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus (S.H.K., A.D.J.F., P.R.B., V.T.) and Chelsea and Westminster Hospital (V.T.), Imperial College London, London, United Kingdom; and ObsEva SA, Geneva, Switzerland (O.P., A.C., J.-P.G.)
| | - Jean-Pierre Gotteland
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus (S.H.K., A.D.J.F., P.R.B., V.T.) and Chelsea and Westminster Hospital (V.T.), Imperial College London, London, United Kingdom; and ObsEva SA, Geneva, Switzerland (O.P., A.C., J.-P.G.)
| | - Adam D J Fairhurst
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus (S.H.K., A.D.J.F., P.R.B., V.T.) and Chelsea and Westminster Hospital (V.T.), Imperial College London, London, United Kingdom; and ObsEva SA, Geneva, Switzerland (O.P., A.C., J.-P.G.)
| | - Phillip R Bennett
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus (S.H.K., A.D.J.F., P.R.B., V.T.) and Chelsea and Westminster Hospital (V.T.), Imperial College London, London, United Kingdom; and ObsEva SA, Geneva, Switzerland (O.P., A.C., J.-P.G.)
| | - Vasso Terzidou
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus (S.H.K., A.D.J.F., P.R.B., V.T.) and Chelsea and Westminster Hospital (V.T.), Imperial College London, London, United Kingdom; and ObsEva SA, Geneva, Switzerland (O.P., A.C., J.-P.G.)
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26
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Elucidating a molecular mechanism that the deterioration of porcine meat quality responds to increased cortisol based on transcriptome sequencing. Sci Rep 2016; 6:36589. [PMID: 27833113 PMCID: PMC5105143 DOI: 10.1038/srep36589] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 10/18/2016] [Indexed: 11/09/2022] Open
Abstract
Stress response is tightly linked to meat quality. The current understanding of the intrinsic mechanism of meat deterioration under stress is limited. Here, male piglets were randomly assigned to cortisol and control groups. Our results showed that when serum cortisol level was significantly increased, the meat color at 1 h postmortem, muscle bundle ratio, apoptosis rate, and gene expression levels of calcium channel and cell apoptosis including SERCA1, IP3R1, BAX, Bcl-2, and Caspase-3, were notably increased. However, the value of drip loss at 24 h postmortem and serum CK were significantly decreased. Additionally, a large number of differentially expressed genes (DEGs) in GC regulation mechanism were screened out using transcriptome sequencing technology. A total of 223 DEGs were found, including 80 up-regulated genes and 143 down-regulated genes. A total of 204 genes were enriched in GO terms, and 140 genes annotated into in KEGG database. Numerous genes were primarily involved in defense, inflammatory and wound responses. This study not only identifies important genes and signalling pathways that may affect the meat quality but also offers a reference for breeding and feeding management to provide consumers with better quality pork products.
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27
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Corriveau S, Blouin S, Burt E, Rousseau E, Pasquier JC. Antenatal montelukast treatment reduces uterine activity associated with inflammation in a pregnant rat model. Eur J Obstet Gynecol Reprod Biol 2016; 206:92-98. [PMID: 27649459 DOI: 10.1016/j.ejogrb.2016.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 06/02/2016] [Accepted: 08/01/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The potency of acute montelukast treatment, a leukotriene receptor antagonist, has been demonstrated as tocolytic on in vitro myometrial contractility. This study assessed the ability of a 48h montelukast treatment to modify in vitro contractions under inflammatory conditions in a pregnant rat model. STUDY DESIGN Pregnant Sprague-Dawley rats were injected intraperitoneally (gestational days 20-22) with lipopolysaccharides (LPS) 200μg/kg (4 treatments at 12h intervals) alone or combined with montelukast 10mg/kg/day or a saline solution for a 48h period. Uterine rings (n=72) were obtained by median laparotomy at day 22. Spontaneous contractile activities were compared using pharmacological compounds (oxytocin, nifedipine) along with assessment of contractile parameters. Myometrial subcellular fractions were also analyzed by Western blot to quantify oxytocin, cysteinyl leukotriene receptors and inflammation markers. RESULTS In in vitro experiments, the area under the curve, the amplitude and the duration of phasic contractions were significantly reduced following 48h of LPS+montelukast treatment comparatively to the LPS group. Moreover, in this same group, oxytocin (10-9-10-7M) largely decreased uterine sensitivity (p=0.04). Following LPS and montelukast treatment, the tocolytic effectiveness of nifedipine (10-9-10-7M) was increased (p<0.01). Western blot analysis confirmed the presence of type 1 CysLT receptors in all treated groups. Hence, montelukast treatment restored TNF-α and COX-2 basal levels. CONCLUSION Our results strongly suggest that montelukast treatment could facilitate a relative uterine quiescence by decreasing its sensitivity to uterotonic agent or by increasing tocolytic efficiency under proinflammatory conditions.
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Affiliation(s)
- Stéphanie Corriveau
- Departement of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Simon Blouin
- Departement of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Elyse Burt
- Departement of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Eric Rousseau
- Departement of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Jean-Charles Pasquier
- Departement of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada.
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28
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Wang F, Wang Y, Wang R, Qiu H, Chen L. Predictive value of maternal serum NF-κB p65 and sTREM-1 for subclinical chorioamnionitis in premature rupture of membranes. Am J Reprod Immunol 2016; 76:217-23. [PMID: 27521929 DOI: 10.1111/aji.12543] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/05/2016] [Indexed: 11/30/2022] Open
Abstract
PROBLEM The aim of this study was to investigate the levels of nuclear factor kappa B-p65 (NF-κB p65) and soluble triggering receptor expressed on myeloid cells-1 (sTREM-1) in maternal blood with premature rupture of membranes (PROM) and to assess their values for prediction of subclinical chorioamnionitis. METHOD NF-κB p65 and sTREM-1 levels were measured in maternal blood and cord blood by fluorescence quantitative RT-PCR assay. According to the placental membranes pathological examination, pregnant women with PROM were divided into chorioamnionitis group (n=28) and non-chorioamnionitis group (n=22). RESULTS In the PROM group,the NF-κB p65 and sTREM-1 levels in maternal blood were significantly higher in women with chorioamnionitis than women without chorioamnionitis (P<.05). The cutoff value of maternal NF-κB p65, sTREM-1, C-reactive protein (CRP), and WBC level were 6.73, 2.93, 6.75 mg/L, and 10.8×10(9) /L, respectively, through analysis of the area under the ROC curve (AUC). The optimal combination test was detection of maternal blood NF-κB p65 and CRP levels, which resulted in a sensitivity of 89.3% and a specificity of 72.7% for the prediction of subclinical chorioamnionitis. CONCLUSION Combined measurements of maternal NF-κB p65 and CRP levels may be used as early biological indicators that predict subclinical chorioamnionitis in premature rupture of membranes.
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Affiliation(s)
- Fan Wang
- Department of Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yuhuan Wang
- Department of Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Rongyue Wang
- Department of Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Haifan Qiu
- Department of Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lulu Chen
- Department of Obstetrics, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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29
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Migale R, MacIntyre DA, Cacciatore S, Lee YS, Hagberg H, Herbert BR, Johnson MR, Peebles D, Waddington SN, Bennett PR. Modeling hormonal and inflammatory contributions to preterm and term labor using uterine temporal transcriptomics. BMC Med 2016; 14:86. [PMID: 27291689 PMCID: PMC4904357 DOI: 10.1186/s12916-016-0632-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 06/01/2016] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Preterm birth is now recognized as the primary cause of infant mortality worldwide. Interplay between hormonal and inflammatory signaling in the uterus modulates the onset of contractions; however, the relative contribution of each remains unclear. In this study we aimed to characterize temporal transcriptome changes in the uterus preceding term labor and preterm labor (PTL) induced by progesterone withdrawal or inflammation in the mouse and compare these findings with human data. METHODS Myometrium was collected at multiple time points during gestation and labor from three murine models of parturition: (1) term gestation; (2) PTL induced by RU486; and (3) PTL induced by lipopolysaccharide (LPS). RNA was extracted and cDNA libraries were prepared and sequenced using the Illumina HiSeq 2000 system. Resulting RNA-Seq data were analyzed using multivariate modeling approaches as well as pathway and causal network analyses and compared against human myometrial transcriptome data. RESULTS We identified a core set of temporal myometrial gene changes associated with term labor and PTL in the mouse induced by either inflammation or progesterone withdrawal. Progesterone withdrawal initiated labor without inflammatory gene activation, yet LPS activation of uterine inflammation was sufficient to override the repressive effects of progesterone and induce a laboring phenotype. Comparison of human and mouse uterine transcriptomic datasets revealed that human labor more closely resembles inflammation-induced PTL in the mouse. CONCLUSIONS Labor in the mouse can be achieved through inflammatory gene activation yet these changes are not a requisite for labor itself. Human labor more closely resembles LPS-induced PTL in the mouse, supporting an essential role for inflammatory mediators in human "functional progesterone withdrawal." This improved understanding of inflammatory and progesterone influence on the uterine transcriptome has important implications for the development of PTL prevention strategies.
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Affiliation(s)
- Roberta Migale
- Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - David A MacIntyre
- Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, United Kingdom.
| | - Stefano Cacciatore
- Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - Yun S Lee
- Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - Henrik Hagberg
- Perinatal Center, Department of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden.,Centre for the Developing Brain, Division of Imaging Sciences and Biomedical Engineering, King's College London, King's Health Partners, St. Thomas' Hospital, London, United Kingdom
| | - Bronwen R Herbert
- Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, United Kingdom.,Academic Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, United Kingdom
| | - Mark R Johnson
- Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, United Kingdom.,Academic Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, United Kingdom
| | - Donald Peebles
- UCL Centre for Perinatal Brain Protection & Repair, Institute for Women's Health, University College London, London, United Kingdom
| | - Simon N Waddington
- Gene Transfer Technology Group, Institute for Women's Health, University College London, London, United Kingdom.,Antiviral Gene Therapy Research Unit, Faculty of Health Sciences, University of the Witswatersrand, Johannesburg, South Africa
| | - Phillip R Bennett
- Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, United Kingdom.
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Sharp GC, Hutchinson JL, Hibbert N, Freeman TC, Saunders PTK, Norman JE. Transcription Analysis of the Myometrium of Labouring and Non-Labouring Women. PLoS One 2016; 11:e0155413. [PMID: 27176052 PMCID: PMC4866706 DOI: 10.1371/journal.pone.0155413] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Accepted: 04/28/2016] [Indexed: 11/18/2022] Open
Abstract
An incomplete understanding of the molecular mechanisms that initiate normal human labour at term seriously hampers the development of effective ways to predict, prevent and treat disorders such as preterm labour. Appropriate analysis of large microarray experiments that compare gene expression in non-labouring and labouring gestational tissues is necessary to help bridge these gaps in our knowledge. In this work, gene expression in 48 (22 labouring, 26 non-labouring) lower-segment myometrial samples collected at Caesarean section were analysed using Illumina HT-12 v4.0 BeadChips. Normalised data were compared between labouring and non-labouring groups using traditional statistical methods and a novel network graph approach. We sought technical validation with quantitative real-time PCR, and biological replication through inverse variance-weighted meta-analysis with published microarray data. We have extended the list of genes suggested to be associated with labour: Compared to non-labouring samples, labouring samples showed apparent higher expression at 960 probes (949 genes) and apparent lower expression at 801 probes (789 genes) (absolute fold change ≥1.2, rank product percentage of false positive value (RP-PFP) <0.05). Although half of the women in the labouring group had received pharmaceutical treatment to induce or augment labour, sensitivity analysis suggested that this did not confound our results. In agreement with previous studies, functional analysis suggested that labour was characterised by an increase in the expression of inflammatory genes and network analysis suggested a strong neutrophil signature. Our analysis also suggested that labour is characterised by a decrease in the expression of muscle-specific processes, which has not been explicitly discussed previously. We validated these findings through the first formal meta-analysis of raw data from previous experiments and we hypothesise that this represents a change in the composition of myometrial tissue at labour. Further work will be necessary to reveal whether these results are solely due to leukocyte infiltration into the myometrium as a mechanism initiating labour, or in addition whether they also represent gene changes in the myocytes themselves. We have made all our data available at www.ebi.ac.uk/arrayexpress/ (accession number E-MTAB-3136) to facilitate progression of this work.
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Affiliation(s)
- Gemma C. Sharp
- Tommy’s Centre for Maternal and Fetal Health and Medical Research Council (MRC) Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
- * E-mail:
| | - James L. Hutchinson
- Tommy’s Centre for Maternal and Fetal Health and Medical Research Council (MRC) Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
| | - Nanette Hibbert
- Tommy’s Centre for Maternal and Fetal Health and Medical Research Council (MRC) Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
| | - Tom C. Freeman
- Systems Immunology Group, Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, United Kingdom
| | - Philippa T. K. Saunders
- Tommy’s Centre for Maternal and Fetal Health and Medical Research Council (MRC) Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
| | - Jane E. Norman
- Tommy’s Centre for Maternal and Fetal Health and Medical Research Council (MRC) Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom
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Kim SH, MacIntyre DA, Hanyaloglu AC, Blanks AM, Thornton S, Bennett PR, Terzidou V. The oxytocin receptor antagonist, Atosiban, activates pro-inflammatory pathways in human amnion via G(αi) signalling. Mol Cell Endocrinol 2016; 420:11-23. [PMID: 26586210 DOI: 10.1016/j.mce.2015.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 11/09/2015] [Accepted: 11/09/2015] [Indexed: 12/29/2022]
Abstract
Oxytocin (OT) plays an important role in the onset of human labour by stimulating uterine contractions and promoting prostaglandin/inflammatory cytokine synthesis in amnion via oxytocin receptor (OTR) coupling. The OTR-antagonist, Atosiban, is widely used as a tocolytic for the management of acute preterm labour. We found that in primary human amniocytes, Atosiban (10 μM) signals via PTX-sensitive Gαi to activate transcription factor NF-κB p65, ERK1/2, and p38 which subsequently drives upregulation of the prostaglandin synthesis enzymes, COX-2 and phospho-cPLA2 and excretion of prostaglandins (PGE2) (n = 6; p < 0.05, ANOVA). Moreover, Atosiban treatment increased expression and excretion of the inflammatory cytokines, IL-6 and CCL5. We also showed that OT-simulated activation of NF-κB, ERK1/2, and p38 and subsequent prostaglandin and inflammatory cytokine synthesis is via Gαi-2 and Gαi-3 but not Gαq, and is not inhibited by Atosiban. Activation or exacerbation of inflammation is not a desirable effect of tocolytics. Therefore therapeutic modulation of the OT/OTR system for clinical management of term/preterm labour should consider the effects of differential G-protein coupling of the OTR and the role of OT or selective OTR agonists/antagonists in activating proinflammatory pathways.
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Affiliation(s)
- Sung Hye Kim
- Imperial College London, Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK
| | - David A MacIntyre
- Imperial College London, Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK
| | - Aylin C Hanyaloglu
- Imperial College London, Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK
| | - Andrew M Blanks
- University of Warwick, Clinical Sciences Research Institute, Warwick Medical School, UHCW, Clifford Bridge Road, Coventry CV2 2DX, UK
| | - Steven Thornton
- The University of Exeter Medical School, Main Medical School Building, St Luke's Campus, Magdalen Road, Exeter, EX1 2LU, UK
| | - Phillip R Bennett
- Imperial College London, Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK
| | - Vasso Terzidou
- Imperial College London, Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, UK; Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, 369 Fulham Road, London, SW10 9NH, UK.
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Cookson VJ, Waite SL, Heath PR, Hurd PJ, Gandhi SV, Chapman NR. Binding loci of RelA-containing nuclear factor-kappaB dimers in promoter regions of PHM1-31 myometrial smooth muscle cells. Mol Hum Reprod 2015; 21:865-83. [DOI: 10.1093/molehr/gav051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 09/03/2015] [Indexed: 12/15/2022] Open
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Eidem HR, Ackerman WE, McGary KL, Abbot P, Rokas A. Gestational tissue transcriptomics in term and preterm human pregnancies: a systematic review and meta-analysis. BMC Med Genomics 2015; 8:27. [PMID: 26044726 PMCID: PMC4456776 DOI: 10.1186/s12920-015-0099-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 05/12/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Preterm birth (PTB), or birth before 37 weeks of gestation, is the leading cause of newborn death worldwide. PTB is a critical area of scientific study not only due to its worldwide toll on human lives and economies, but also due to our limited understanding of its pathogenesis and, therefore, its prevention. This systematic review and meta-analysis synthesizes the landscape of PTB transcriptomics research to further our understanding of the genes and pathways involved in PTB subtypes. METHODS We evaluated published genome-wide pregnancy studies across gestational tissues and pathologies, including those that focus on PTB, by performing a targeted PubMed MeSH search and systematically reviewing all relevant studies. RESULTS Our search yielded 2,361 studies on gestational tissues including placenta, decidua, myometrium, maternal blood, cervix, fetal membranes (chorion and amnion), umbilical cord, fetal blood, and basal plate. Selecting only those original research studies that measured transcription on a genome-wide scale and reported lists of expressed genetic elements identified 93 gene expression, 21 microRNA, and 20 methylation studies. Although 30 % of all PTB cases are due to medical indications, 76 % of the preterm studies focused on them. In contrast, only 18 % of the preterm studies focused on spontaneous onset of labor, which is responsible for 45 % of all PTB cases. Furthermore, only 23 of the 10,993 unique genetic elements reported to be transcriptionally active were recovered 10 or more times in these 134 studies. Meta-analysis of the 93 gene expression studies across 9 distinct gestational tissues and 29 clinical phenotypes showed limited overlap of genes identified as differentially expressed across studies. CONCLUSIONS Overall, profiles of differentially expressed genes were highly heterogeneous both between as well as within clinical subtypes and tissues as well as between studies of the same clinical subtype and tissue. These results suggest that large gaps still exist in the transcriptomic study of specific clinical subtypes as well in the generation of the transcriptional profile of well-studied clinical subtypes; understanding the complex landscape of prematurity will require large-scale, systematic genome-wide analyses of human gestational tissues on both understudied and well-studied subtypes alike.
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Affiliation(s)
- Haley R Eidem
- Department of Biological Sciences, Vanderbilt University, VU Station B #35-1634, Nashville, TN, 37235, USA.
| | - William E Ackerman
- Department of Obstetrics and Gynecology, The Ohio State University, Columbus, OH, 43210, USA.
| | - Kriston L McGary
- Department of Biological Sciences, Vanderbilt University, VU Station B #35-1634, Nashville, TN, 37235, USA.
| | - Patrick Abbot
- Department of Biological Sciences, Vanderbilt University, VU Station B #35-1634, Nashville, TN, 37235, USA.
| | - Antonis Rokas
- Department of Biological Sciences, Vanderbilt University, VU Station B #35-1634, Nashville, TN, 37235, USA.
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Kim SH, MacIntyre DA, Firmino Da Silva M, Blanks AM, Lee YS, Thornton S, Bennett PR, Terzidou V. Oxytocin activates NF-κB-mediated inflammatory pathways in human gestational tissues. Mol Cell Endocrinol 2015; 403:64-77. [PMID: 25451977 DOI: 10.1016/j.mce.2014.11.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Revised: 11/10/2014] [Accepted: 11/12/2014] [Indexed: 12/21/2022]
Abstract
Human labour, both at term and preterm, is preceded by NF-κB-mediated inflammatory activation within the uterus, leading to myometrial activation, fetal membrane remodelling and cervical ripening. The stimuli triggering inflammatory activation in normal human parturition are not fully understood. We show that the neurohypophyseal peptide, oxytocin (OT), activates NF-κB and stimulates downstream inflammatory pathways in human gestational tissues. OT stimulation (1 pM-100 nM) specifically via its receptor (OTR) in human myometrial and amnion primary cells led to MAPK and NF-κB activation within 15 min and maximal p65-subunit nuclear translocation within 30 min. Both in human myometrium and amnion, OT-induced activation of the canonical NF-κB pathway upregulated key inflammatory labour-associated genes including IL-8, CCL5, IL-6 and COX-2. IKKβ inhibition (TPCA1; 10 µM) suppressed OT-induced NF-κB-p65 phosphorylation, whereas p65-siRNA knockdown reduced basal and OT-induced COX-2 levels in myometrium and amnion. In both gestational tissues, MEK1/2 (U0126; 10 µM) or p38 inhibition (SB203580; 10 µM) suppressed OT-induced COX-2 expression, but OT-induced p65-phosphorylation was only inhibited in amnion, suggesting OT activation of NF-κB in amnion is MAPK-dependent. Our data provide new insight into the OT/OTR system in human parturition and suggest that its therapeutic modulation could be a strategy for regulating both contractile and inflammatory pathways in the clinical context of term/preterm labour.
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Affiliation(s)
- Sung Hye Kim
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, United Kingdom
| | - David A MacIntyre
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, United Kingdom
| | - Maria Firmino Da Silva
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, United Kingdom
| | - Andrew M Blanks
- University of Warwick, Clinical Sciences Research Institute, Warwick Medical School, UHCW, Clifford Bridge Road, Coventry CV2 2DX, United Kingdom
| | - Yun S Lee
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, United Kingdom
| | - Steven Thornton
- University of Exeter Medical School, Barrack Road, Exeter EX2 5DW, United Kingdom
| | - Phillip R Bennett
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, United Kingdom
| | - Vasso Terzidou
- Imperial College London, Parturition Research Group, Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, Du Cane Road, East Acton, London W12 0NN, United Kingdom; Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, 369 Fulham Road, London SW10 9NH, United Kingdom.
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Stephen GL, Lui S, Hamilton SA, Tower CL, Harris LK, Stevens A, Jones RL. Transcriptomic profiling of human choriodecidua during term labor: inflammation as a key driver of labor. Am J Reprod Immunol 2014; 73:36-55. [PMID: 25283845 DOI: 10.1111/aji.12328] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 09/05/2014] [Indexed: 01/10/2023] Open
Abstract
PROBLEM Inflammation is a driver of labor in myometrium and cervix; however, the involvement of decidua is poorly defined. We have reported decidual leukocyte infiltration prior to and during labor; the regulators of these inflammatory processes are unknown. METHOD OF STUDY Choriodecidua RNA obtained after term labor or elective cesarean delivery was applied to Affymetrix GeneChips. Pathway analysis and gene validation were performed. RESULTS Extensive inflammatory activation was identified in choriodecidua following labor, predominantly upregulation of genes regulating leukocyte trafficking and cytokine signalling. Genes governing cell fate, tissue remodelling, and translation were also altered. Upregulation of candidate genes (ICAM1, CXCR4, CD44, TLR4, SOCS3, BCL2A, and IDO) was confirmed. NFκB, STAT1&3, HMGB1, and miRNA-21, miRNA-46, miRNA-141, and miRNA-200 were predicted upstream regulators. CONCLUSION This study confirms inflammatory processes are major players in labor events in choriodecidua, as in other gestational tissues. Suppressing uterine inflammation is likely to be critical for arresting premature labor.
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Affiliation(s)
- Gillian L Stephen
- Maternal and Fetal Health Research Centre, University of Manchester, Manchester, UK; St. Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
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Sykes L, MacIntyre DA, Teoh TG, Bennett PR. Anti-inflammatory prostaglandins for the prevention of preterm labour. Reproduction 2014; 148:R29-40. [PMID: 24890751 DOI: 10.1530/rep-13-0587] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Preterm birth occurs in 10-12% of pregnancies and is the primary cause of neonatal mortality and morbidity. Tocolytic therapies have long been the focus for the prevention of preterm labour, yet they do not significantly improve neonatal outcome. A direct causal link exists between infection-induced inflammation and preterm labour. As inflammation and infection are independent risk factors for poor neonatal outcome, recent research focus has been shifted towards exploring the potential for anti-inflammatory strategies. Nuclear factor kappa B (NFκB) is a transcription factor that controls the expression of many labour-associated genes including PTGS2 (COX2), prostaglandins (PGs) and the oxytocin receptor (OXTR) as well as key inflammatory genes. Targeting the inhibition of NFκB is therefore an attractive therapeutic approach for both the prevention of preterm labour and for reducing neonatal exposure to inflammation. While PGs are considered to be pro-labour and pro-inflammatory, the cyclopentenone PG 15-deoxy-Δ(12,14)PGJ2 (15d-PGJ2) exhibits anti-inflammatory properties via the inhibition of NFκB in human amniocytes, myocytes and peripheral blood mononuclear cells in vitro. 15d-PGJ2 also delays inflammation-induced preterm labour in the mouse and significantly increases pup survival. This review examines the current understanding of inflammation in the context of labour and discusses how anti-inflammatory PGs may hold promise for the prevention of preterm labour and improved neonatal outcome.
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Affiliation(s)
- Lynne Sykes
- Parturition Research GroupDepartment of Surgery and Cancer, Institute of Reproduction and Developmental Biology, Imperial College London, London W12 0NN, UKSt Mary's HospitalImperial College Healthcare NHS Trust, London W1 2NY, UK
| | - David A MacIntyre
- Parturition Research GroupDepartment of Surgery and Cancer, Institute of Reproduction and Developmental Biology, Imperial College London, London W12 0NN, UKSt Mary's HospitalImperial College Healthcare NHS Trust, London W1 2NY, UK
| | - Tiong Ghee Teoh
- Parturition Research GroupDepartment of Surgery and Cancer, Institute of Reproduction and Developmental Biology, Imperial College London, London W12 0NN, UKSt Mary's HospitalImperial College Healthcare NHS Trust, London W1 2NY, UK
| | - Phillip R Bennett
- Parturition Research GroupDepartment of Surgery and Cancer, Institute of Reproduction and Developmental Biology, Imperial College London, London W12 0NN, UKSt Mary's HospitalImperial College Healthcare NHS Trust, London W1 2NY, UK
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Szukiewicz D, Kochanowski J, Mittal TK, Pyzlak M, Szewczyk G, Cendrowski K. Chorioamnionitis (ChA) modifies CX3CL1 (fractalkine) production by human amniotic epithelial cells (HAEC) under normoxic and hypoxic conditions. JOURNAL OF INFLAMMATION-LONDON 2014; 11:12. [PMID: 24851083 PMCID: PMC4029884 DOI: 10.1186/1476-9255-11-12] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 05/08/2014] [Indexed: 01/01/2023]
Abstract
Background Chemokine CX3CL1 possesses unique properties, including combined adhesive and chemotactic functions. Human amniotic epithelial cells (HAEC) show expression of CX3CL1 receptor (CX3CR1) and produce CX3CL1 in response to both physiologic and pathologic stimuli. Chorioamnionitis (ChA) is a common complication of pregnancy and labour. ChA is often accompanied by local hypoxia because of the high oxygen consumption at the site of inflammation. We examined comparatively (ChA-complicated vs. normal pregnancy) CX3CR1 expression and the effects of hypoxia, lipopolysaccharide (LPS), and CX3CR1 blockade on CX3CL1 production in HAEC cultured in vitro. Methods HAEC have been isolated using trypsinization, and cultured under normoxia (20% O2) vs. hypoxia (5% O2). According to the experimental design, LPS (1 μg/ml) and neutralizing anti-CX3CR1 antibodies were added at respective time points. Mean CX3CL1 concentration in the supernatant samples were determined by ELISA. Expression of immunostained CX3CR1 was analyzed using quantitative morphometry. Results We have found that the mean levels of CX3CL1 and CX3CR1 expression were remarkably (p < 0.05) higher in ChA, compared to normal pregnancy. Significantly increased expression of CX3CR1 was observed in ChA during both normoxia and hypoxia. Hypoxia exposure produced decrease in the mean concentration of CX3CL1 in both groups, however this reduction was stronger in normal pregnancy. In normoxia, LPS-evoked rise in the mean concentration of CX3CL1 was higher (p < 0.05) in normal pregnancy. This response was positively correlated with CX3CR1 expression. Blockade of CX3CR1 canceled the secretory response to LPS in all groups. Conclusions ChA-complicated pregnancy up-regulates CX3CR1 in HAEC cultured in vitro with simultaneous increase in CX3CL1 production. Hypoxia-resistant production of CX3CL1 may be responsible for ChA-related complications of pregnancy and labor.
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Affiliation(s)
- Dariusz Szukiewicz
- Department of General & Experimental Pathology, Medical University of Warsaw, ul.Krakowskie Przedmiescie 26/28, Warsaw 00-928, Poland
| | - Jan Kochanowski
- Department of Neurology, Second Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Tarun Kumar Mittal
- Department of Obstetrics & Gynecology, Second Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Michal Pyzlak
- Department of General & Experimental Pathology, Medical University of Warsaw, ul.Krakowskie Przedmiescie 26/28, Warsaw 00-928, Poland
| | - Grzegorz Szewczyk
- Department of General & Experimental Pathology, Medical University of Warsaw, ul.Krakowskie Przedmiescie 26/28, Warsaw 00-928, Poland
| | - Krzysztof Cendrowski
- Department of Obstetrics & Gynecology, Second Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
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Corriveau S, Rousseau É, Blouin S, Pasquier JC. Leukotriene receptor antagonist as a novel tocolytic in an in vitro model of human uterine contractility. Eur J Obstet Gynecol Reprod Biol 2014; 177:77-83. [PMID: 24735655 DOI: 10.1016/j.ejogrb.2014.02.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 02/18/2014] [Accepted: 02/26/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE This study analyzed the ability of montelukast, a cysteinyl-leukotrienes receptor antagonist and anti-inflammatory agent, to produce a consistent tocolytic effect alone or in combination with nifedipine, a calcium (Ca(2+)) channel blocker currently used in clinical practice. STUDY DESIGN Uterine biopsies were obtained from consenting women undergoing elective cesarean sections at term (n=20). Myometrial microsomal fractions were analyzed by immunoblotting to quantify relative cysteinyl leukotrienes receptor 1 (CysLTR1) levels. Isometric tension measurements were performed in vitro on human myometrial strips (n=120) in isolated organ baths in order to establish concentration-response curves to montelukast and to quantify changes in Ca(2+) sensitivity on β-escin permeabilized tissues. RESULTS Immunodetection analysis revealed the presence of CysLTR1 receptor in uterine tissues, fetal membranes and placenta. A significant increase in area under the curve (AUC) was quantified following the addition of leukotriene D4 (LTD4) (0.01-0.3 μM), an end-product of the lipoxygenase pathway. Conversely, addition of montelukast produced a significant tocolytic effect by decreasing the frequency and AUC (IC₅₀=1 μM). Moreover, addition of montelukast also resulted in a reduced Ca(2+) sensitivity as compared to control tissues (EC₅₀ values of 654 and 403 nM; p=0.02 at pCa 6), while an additive effect was observed in combination with 0.1 nM nifedipine (p=0.004). CONCLUSION This original study demonstrates the potency of montelukast as a tocolytic agent in an in vitro human uterine model. Montelukast, in combination with nifedipine, could represent a therapeutic approach to reduce inflammation associated with prematurity while facilitating the inhibition of preterm labor.
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Affiliation(s)
- Stéphanie Corriveau
- Obstetrics and Gynecology, CHUS, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada; Physiology and Biophysics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Éric Rousseau
- Physiology and Biophysics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Simon Blouin
- Obstetrics and Gynecology, CHUS, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Jean-Charles Pasquier
- Obstetrics and Gynecology, CHUS, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada.
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MacIntyre DA, Lee YS, Migale R, Herbert BR, Waddington SN, Peebles D, Hagberg H, Johnson MR, Bennett PR. Activator protein 1 is a key terminal mediator of inflammation-induced preterm labor in mice. FASEB J 2014; 28:2358-68. [PMID: 24497579 DOI: 10.1096/fj.13-247783] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Activation of uterine inflammatory pathways leads to preterm labor (PTL), associated with high rates of neonatal mortality and morbidity. The transcription factors nuclear factor κB (NFκB) and activator protein 1 (AP-1) regulate key proinflammatory and procontractile genes involved in normal labor and PTL. Here we show that NFκB activation normally occurs in the mouse myometrium at gestation day E18, prior to labor, whereas AP-1 and JNK activation occurs at labor onset. Where labor was induced using the progesterone receptor antagonist RU486, NFkB and AP-1/JNK activation both occurred at the time of labor (20 h compared to 60 h in DMSO-treated controls). Using an LPS (Escherichia coli: serotype O111)-induced PTL model that selectively activates AP-1 but not NFkB, we show that myometrial AP-1 activation drives production of cytokines (Il-6, Il-8, and Il-1β), metalloproteinases (Mmp3 and Mmp10), and procontractile proteins (Cox-2 and Cx43) resulting in PTL after 7 h. Protein levels of CX43 and IL-1β, and IL-1β cleavage, were increased following LPS-induced activation of AP-1. Inhibition of JNK by SP600125 (30 mg/kg) delayed PTL by 6 h (7.5 vs. 13.5 h P<0.05). Our data reveal that NFκB activation is not a functional requirement for infection/inflammation-induced preterm labor and that AP-1 activation is sufficient to drive inflammatory pathways that cause PTL.
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Affiliation(s)
- David A MacIntyre
- 2Imperial College Parturition Research Group, Institute of Reproduction and Developmental Biology, Imperial College London, Hammersmith Campus, London, W12 0NN, UK.
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Romero R, Tarca AL, Chaemsaithong P, Miranda J, Chaiworapongsa T, Jia H, Hassan SS, Kalita CA, Cai J, Yeo L, Lipovich L. Transcriptome interrogation of human myometrium identifies differentially expressed sense-antisense pairs of protein-coding and long non-coding RNA genes in spontaneous labor at term. J Matern Fetal Neonatal Med 2014; 27:1397-408. [PMID: 24168098 DOI: 10.3109/14767058.2013.860963] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To identify differentially expressed long non-coding RNA (lncRNA) genes in human myometrium in women with spontaneous labor at term. MATERIALS AND METHODS Myometrium was obtained from women undergoing cesarean deliveries who were not in labor (n = 19) and women in spontaneous labor at term (n = 20). RNA was extracted and profiled using an Illumina® microarray platform. We have used computational approaches to bound the extent of long non-coding RNA representation on this platform, and to identify co-differentially expressed and correlated pairs of long non-coding RNA genes and protein-coding genes sharing the same genomic loci. RESULTS We identified co-differential expression and correlation at two genomic loci that contain coding-lncRNA gene pairs: SOCS2-AK054607 and LMCD1-NR_024065 in women in spontaneous labor at term. This co-differential expression and correlation was validated by qRT-PCR, an experimental method completely independent of the microarray analysis. Intriguingly, one of the two lncRNA genes differentially expressed in term labor had a key genomic structure element, a splice site, that lacked evolutionary conservation beyond primates. CONCLUSIONS We provide, for the first time, evidence for coordinated differential expression and correlation of cis-encoded antisense lncRNAs and protein-coding genes with known as well as novel roles in pregnancy in the myometrium of women in spontaneous labor at term.
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Affiliation(s)
- Roberto Romero
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH , Bethesda, MD and Detroit, MI , USA
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Kotani T, Iwase A, Tsuda H, Mano Y, Yamamoto E, Nakano T, Hasegawa Y, Li H, Sumigama S, Itakura A, Kikkawa F. Altered Expression of Enzymes Regulating the Activity of Endothelin-1 in the Lower Segment of the Human Amnion During Labor1. Biol Reprod 2013; 89:52. [DOI: 10.1095/biolreprod.113.108480] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Mitchell CM, Sykes SD, Pan X, Pringle KG, Lumbers ER, Hirst JJ, Zakar T. Inflammatory and steroid receptor gene methylation in the human amnion and decidua. J Mol Endocrinol 2013; 50:267-77. [PMID: 23393306 DOI: 10.1530/jme-12-0211] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Correct timing of parturition requires inflammatory gene activation in the gestational tissues at term and repression during pregnancy. Promoter methylation at CpG dinucleotides represses gene activity; therefore, we examined the possibility that DNA methylation is involved in the regulation of labour-associated genes in human pregnancy. Amnion and decidua were collected at 11-17 weeks of gestation and at term following elective Caesarean delivery or spontaneous labour. Methylation of the inflammatory genes PTGS2, BMP2, NAMPT and CXCL2 was analysed using the Methyl-Profiler PCR System and bisulphite sequencing. Methylation of the glucocorticoid, progesterone and oestrogen receptor genes, involved in the hormonal regulation of gestational tissue function, and the expression of the DNA methyltransferases DNMT1, -3A and -3B were also determined. Variable proportions of inflammatory and steroid receptor gene copies, to a maximum of 50.9%, were densely methylated in both tissues consistent with repression. Densely methylated copy proportions were significantly different between genes showing no relationship with varying expression during pregnancy, between tissues and in individuals. Methylated copy proportions of all genes in amnion and most genes in decidua were highly correlated in individuals. DNMT1 and -3A were expressed in both tissues with significantly higher levels in the amnion at 11-17 weeks than at term. We conclude that the unmethylated portion of gene copies is responsible for the full range of regulated expression in the amnion and decidua during normal pregnancy. Dense methylation of individually variable gene copy proportions happens in the first trimester amnion influenced by sequence context and affected strongly by individual circumstances.
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Affiliation(s)
- Carolyn M Mitchell
- Mothers and Babies Research Centre, Hunter Medical Research Institute, New Lambton Heights, New South Wales, Australia
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Hamilton SA, Tower CL, Jones RL. Identification of chemokines associated with the recruitment of decidual leukocytes in human labour: potential novel targets for preterm labour. PLoS One 2013; 8:e56946. [PMID: 23451115 PMCID: PMC3579936 DOI: 10.1371/journal.pone.0056946] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 01/16/2013] [Indexed: 12/04/2022] Open
Abstract
Current therapies for preterm labour (PTL) focus on arresting myometrial contractions but are largely ineffective, thus alternative therapeutic targets need to be identified. Leukocytes infiltrate the uterus around the time of labour, and are in particularly abundant in decidua (maternal-fetal interface). Moreover, decidual inflammation precedes labour in rat pregnancies and thus may contribute to initiation of labour. We hypothesized that chemokines mediate decidual leukocyte trafficking during preterm labour (PTL) and term labour (TL), thus representing potential targets for preventing PTL. Women were recruited into 4 groups: TL, term not in labour (TNL), idiopathic PTL and PTL with infection (PTLI). Choriodecidual RNA was subjected to a pathway-specific PCR array for chemokines. Differential expression of 12 candidate chemokines was validated by real time RT-PCR and Bioplex assay, with immunohistochemistry to confirm cellular origin. 25 chemokines were upregulated in choriodecidua from TL compared to TNL. A similar pattern was detected in PTL, however a distinct profile was observed in PTLI consistent with differences in leukocyte infiltration. Upregulation of CCL2, CCL4, CCL5, CXCL8 and CXCL10 mRNA and protein was confirmed in TL, with CCL8 upregulated in PTL. Significant correlations were detected between these chemokines and decidual leukocyte abundance previously assessed by immunohistochemical and image analysis. Chemokines were primarily expressed by decidual stromal cells. In addition, CXCL8 and CCL5 were significantly elevated in maternal plasma during labour, suggesting chemokines contribute to peripheral inflammatory events during labour. Differences in chemokine expression patterns between TL and idiopathic PTL may be attributable to suppression of chemokine expression by betamethasone administered to women in PTL; this was supported by in vitro evidence of chemokine downregulation by clinically relevant concentrations of the steroid. The current study provides compelling evidence that chemokines regulate decidual leukocyte recruitment during labour. The 6 chemokines identified represent potential novel therapeutic targets to block PTL.
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Affiliation(s)
- Sarah A. Hamilton
- Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
| | - Clare L. Tower
- Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
| | - Rebecca L. Jones
- Maternal and Fetal Health Research Centre, Institute of Human Development, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
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Sykes L, Lee Y, Khanjani S, Macintyre DA, Yap XJ, Ponnampalam S, Teoh TG, Bennett PR. Chemoattractant receptor homologous to the T helper 2 cell (CRTH2) is not expressed in human amniocytes and myocytes. PLoS One 2012; 7:e50734. [PMID: 23226366 PMCID: PMC3511345 DOI: 10.1371/journal.pone.0050734] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2012] [Accepted: 10/23/2012] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND 15-deoxy-Δ 12,14- Prostaglandin J2 (15dPGJ2) inhibits Nuclear factor kappa B (NF-κB) in human myocytes and amniocytes and delays inflammation induced preterm labour in the mouse. 15dPGJ2 is a ligand for the Chemoattractant Receptor Homologous to the T helper 2 cell (CRTH2), a G protein-coupled receptor, present on a subset of T helper 2 (Th2) cells, eosinophils and basophils. It is the second receptor for Prostaglandin D2, whose activation leads to chemotaxis and the production of Th2-type interleukins. The cellular distribution of CRTH2 in non-immune cells has not been extensively researched, and its identification at the protein level has been limited by the lack of specific antibodies. In this study we explored the possibility that CRTH2 plays a role in 15dPGJ2-mediated inhibition of NF-κB and would therefore represent a novel small molecule therapeutic target for the prevention of inflammation induced preterm labour. METHODS The effect of a small molecule CRTH2 agonist on NF-κB activity in human cultured amniocytes and myocytes was assessed by detection of p65 and phospho-p65 by immunoblot. Endogenous CRTH2 expression in amniocytes, myocytes and peripheral blood mononuclear cells (PBMCs) was examined by PCR, western analysis and flow cytometry, with amniocytes and myocytes transfected with CRTH2 acting as a positive control in flow cytometry studies. RESULTS The CRTH2 agonist had no effect on NF-κB activity in amniocytes and myocytes. Although CRTH2 mRNA was detected in amniocytes and myocytes, CRTH2 was not detectable at the protein level, as demonstrated by western analysis and flow cytometry. 15dPGJ2 inhibited phospho-65 in PBMC'S, however the CRTH2 antagonist was not able to attenuate this effect. In conclusion, CRTH2 is not expressed on human amniocytes or myocytes and plays no role in the mechanism of 15dPGJ2-mediated inhibition of NF-κB.
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MESH Headings
- Amniotic Fluid/cytology
- Amniotic Fluid/drug effects
- Amniotic Fluid/metabolism
- Animals
- Cells, Cultured
- Female
- Gene Expression Regulation/drug effects
- Genetic Vectors/genetics
- Humans
- Interleukin-1beta/pharmacology
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/metabolism
- Muscle Cells/cytology
- Muscle Cells/drug effects
- Muscle Cells/metabolism
- NF-kappa B/antagonists & inhibitors
- NF-kappa B/metabolism
- Peptides/pharmacology
- Pregnancy
- Prostaglandin D2/analogs & derivatives
- Prostaglandin D2/pharmacology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Immunologic/agonists
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Receptors, Prostaglandin/agonists
- Receptors, Prostaglandin/genetics
- Receptors, Prostaglandin/metabolism
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Affiliation(s)
- Lynne Sykes
- Parturition Research Group, Department of Surgery and Cancer, Imperial College London, London, England.
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Kobayashi H. The entry of fetal and amniotic fluid components into the uterine vessel circulation leads to sterile inflammatory processes during parturition. Front Immunol 2012; 3:321. [PMID: 23109934 PMCID: PMC3478564 DOI: 10.3389/fimmu.2012.00321] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 10/03/2012] [Indexed: 01/12/2023] Open
Abstract
Pro-inflammatory cytokines play an important role during the process of human parturition. The focus of this review was to explore the contribution of biological, biochemical, and genetic changes in the onset of term labor. This article reviews the English-language literature on inflammatory, hormonal, and immunological factors in an effort to identify the molecular basis of human parturition. The majority of the genes and proteins up-regulated in parturition at term are related to four functional categories, mechanical stretch-mediated damage-associated molecular patterns (DAMPs) activation, response to immunity, induction of inflammatory signaling, and progressive uterine myometrial contractility and resultant term birth. Mechanical stretch could promote the entry of amniotic fluid components into the uterine vessel circulation that is the common physiologic mechanism at term prior to labor. The fetal or amniotic fluid-derived DAMPs could activate the immune system. The inflammatory mediators are produced by infiltrating activated leukocytes and by the reproductive tissues themselves such as myometrium, and subsequently lead to uterine contractions. This review supports the sterile inflammation hypothesis that there are at least two phases of human parturition: the initial wave of the entry of amniotic fluid components into uterine vasculatures would be followed by the second big wave of subsequent myometrial contraction.
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Affiliation(s)
- Hiroshi Kobayashi
- Department of Obstetrics and Gynecology, Nara Medical University Kashihara, Nara, Japan
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Smith R, Paul J, Maiti K, Tolosa J, Madsen G. Recent advances in understanding the endocrinology of human birth. Trends Endocrinol Metab 2012; 23:516-23. [PMID: 22682480 DOI: 10.1016/j.tem.2012.05.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 04/23/2012] [Accepted: 05/01/2012] [Indexed: 02/06/2023]
Abstract
The timing of human birth has a crucial impact upon the survival of the fetus. New knowledge on the regulation of human birth includes the role of endogenous retroviruses in the formation of the syncytiotrophoblast cells and consequently the secretion of corticotrophin releasing hormone, a hormone linked to gestational length determination. miRNAs have been identified that mediate progesterone withdrawal at labor by suppressing progesterone-induced transcription factors. Progress has also been made in understanding how the contractile machinery of the uterine myocytes is activated at labor and the role of small heat-shock proteins in this process. From this work, new therapeutic targets have been identified that may be used to regulate the onset of labor and improve neonatal mortality.
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Affiliation(s)
- Roger Smith
- Mothers and Babies Research Centre, Faculty of Health, University of Newcastle, Callaghan, NSW 2308, Australia.
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